767d8d8d50
41045 Commits
| Author | SHA1 | Message | Date | |
|---|---|---|---|---|
Maxim Levitsky
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0dacc3df89 |
KVM: x86: SVM: fix avic spec based definitions again
Due to wrong rebase, commit
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Hou Wenlong
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ac8d6cad3c |
KVM: x86: Only do MSR filtering when access MSR by rdmsr/wrmsr
If MSR access is rejected by MSR filtering, kvm_set_msr()/kvm_get_msr() would return KVM_MSR_RET_FILTERED, and the return value is only handled well for rdmsr/wrmsr. However, some instruction emulation and state transition also use kvm_set_msr()/kvm_get_msr() to do msr access but may trigger some unexpected results if MSR access is rejected, E.g. RDPID emulation would inject a #UD but RDPID wouldn't cause a exit when RDPID is supported in hardware and ENABLE_RDTSCP is set. And it would also cause failure when load MSR at nested entry/exit. Since msr filtering is based on MSR bitmap, it is better to only do MSR filtering for rdmsr/wrmsr. Signed-off-by: Hou Wenlong <houwenlong.hwl@antgroup.com> Message-Id: <2b2774154f7532c96a6f04d71c82a8bec7d9e80b.1646655860.git.houwenlong.hwl@antgroup.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> |
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Hou Wenlong
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a836839cbf |
KVM: x86/emulator: Emulate RDPID only if it is enabled in guest
When RDTSCP is supported but RDPID is not supported in host,
RDPID emulation is available. However, __kvm_get_msr() would
only fail when RDTSCP/RDPID both are disabled in guest, so
the emulator wouldn't inject a #UD when RDPID is disabled but
RDTSCP is enabled in guest.
Fixes:
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Like Xu
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e644896f51 |
KVM: x86/pmu: Fix and isolate TSX-specific performance event logic
HSW_IN_TX* bits are used in generic code which are not supported on
AMD. Worse, these bits overlap with AMD EventSelect[11:8] and hence
using HSW_IN_TX* bits unconditionally in generic code is resulting in
unintentional pmu behavior on AMD. For example, if EventSelect[11:8]
is 0x2, pmc_reprogram_counter() wrongly assumes that
HSW_IN_TX_CHECKPOINTED is set and thus forces sampling period to be 0.
Also per the SDM, both bits 32 and 33 "may only be set if the processor
supports HLE or RTM" and for "IN_TXCP (bit 33): this bit may only be set
for IA32_PERFEVTSEL2."
Opportunistically eliminate code redundancy, because if the HSW_IN_TX*
bit is set in pmc->eventsel, it is already set in attr.config.
Reported-by: Ravi Bangoria <ravi.bangoria@amd.com>
Reported-by: Jim Mattson <jmattson@google.com>
Fixes:
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Maxim Levitsky
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5959ff4ae9 |
KVM: x86: mmu: trace kvm_mmu_set_spte after the new SPTE was set
It makes more sense to print new SPTE value than the old value. Signed-off-by: Maxim Levitsky <mlevitsk@redhat.com> Reviewed-by: Sean Christopherson <seanjc@google.com> Message-Id: <20220302102457.588450-1-mlevitsk@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> |
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Jim Mattson
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9b026073db |
KVM: x86/svm: Clear reserved bits written to PerfEvtSeln MSRs
AMD EPYC CPUs never raise a #GP for a WRMSR to a PerfEvtSeln MSR. Some
reserved bits are cleared, and some are not. Specifically, on
Zen3/Milan, bits 19 and 42 are not cleared.
When emulating such a WRMSR, KVM should not synthesize a #GP,
regardless of which bits are set. However, undocumented bits should
not be passed through to the hardware MSR. So, rather than checking
for reserved bits and synthesizing a #GP, just clear the reserved
bits.
This may seem pedantic, but since KVM currently does not support the
"Host/Guest Only" bits (41:40), it is necessary to clear these bits
rather than synthesizing #GP, because some popular guests (e.g Linux)
will set the "Host Only" bit even on CPUs that don't support
EFER.SVME, and they don't expect a #GP.
For example,
root@Ubuntu1804:~# perf stat -e r26 -a sleep 1
Performance counter stats for 'system wide':
0 r26
1.001070977 seconds time elapsed
Feb 23 03:59:58 Ubuntu1804 kernel: [ 405.379957] unchecked MSR access error: WRMSR to 0xc0010200 (tried to write 0x0000020000130026) at rIP: 0xffffffff9b276a28 (native_write_msr+0x8/0x30)
Feb 23 03:59:58 Ubuntu1804 kernel: [ 405.379958] Call Trace:
Feb 23 03:59:58 Ubuntu1804 kernel: [ 405.379963] amd_pmu_disable_event+0x27/0x90
Fixes:
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Sean Christopherson
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4f4c4a3ee5 |
KVM: x86: Trace all APICv inhibit changes and capture overall status
Trace all APICv inhibit changes instead of just those that result in APICv being (un)inhibited, and log the current state. Debugging why APICv isn't working is frustrating as it's hard to see why APICv is still inhibited, and logging only the first inhibition means unnecessary onion peeling. Opportunistically drop the export of the tracepoint, it is not and should not be used by vendor code due to the need to serialize toggling via apicv_update_lock. Note, using the common flow means kvm_apicv_init() switched from atomic to non-atomic bitwise operations. The VM is unreachable at init, so non-atomic is perfectly ok. Signed-off-by: Sean Christopherson <seanjc@google.com> Message-Id: <20220311043517.17027-4-seanjc@google.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> |
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Sean Christopherson
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320af55a93 |
KVM: x86: Add wrappers for setting/clearing APICv inhibits
Add set/clear wrappers for toggling APICv inhibits to make the call sites more readable, and opportunistically rename the inner helpers to align with the new wrappers and to make them more readable as well. Invert the flag from "activate" to "set"; activate is painfully ambiguous as it's not obvious if the inhibit is being activated, or if APICv is being activated, in which case the inhibit is being deactivated. For the functions that take @set, swap the order of the inhibit reason and @set so that the call sites are visually similar to those that bounce through the wrapper. Signed-off-by: Sean Christopherson <seanjc@google.com> Message-Id: <20220311043517.17027-3-seanjc@google.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> |
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Sean Christopherson
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7491b7b2e1 |
KVM: x86: Make APICv inhibit reasons an enum and cleanup naming
Use an enum for the APICv inhibit reasons, there is no meaning behind their values and they most definitely are not "unsigned longs". Rename the various params to "reason" for consistency and clarity (inhibit may be confused as a command, i.e. inhibit APICv, instead of the reason that is getting toggled/checked). No functional change intended. Signed-off-by: Sean Christopherson <seanjc@google.com> Message-Id: <20220311043517.17027-2-seanjc@google.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> |
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Lai Jiangshan
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4f4aa80e3b |
KVM: X86: Handle implicit supervisor access with SMAP
There are two kinds of implicit supervisor access implicit supervisor access when CPL = 3 implicit supervisor access when CPL < 3 Current permission_fault() handles only the first kind for SMAP. But if the access is implicit when SMAP is on, data may not be read nor write from any user-mode address regardless the current CPL. So the second kind should be also supported. The first kind can be detect via CPL and access mode: if it is supervisor access and CPL = 3, it must be implicit supervisor access. But it is not possible to detect the second kind without extra information, so this patch adds an artificial PFERR_EXPLICIT_ACCESS into @access. This extra information also works for the first kind, so the logic is changed to use this information for both cases. The value of PFERR_EXPLICIT_ACCESS is deliberately chosen to be bit 48 which is in the most significant 16 bits of u64 and less likely to be forced to change due to future hardware uses it. This patch removes the call to ->get_cpl() for access mode is determined by @access. Not only does it reduce a function call, but also remove confusions when the permission is checked for nested TDP. The nested TDP shouldn't have SMAP checking nor even the L2's CPL have any bearing on it. The original code works just because it is always user walk for NPT and SMAP fault is not set for EPT in update_permission_bitmask. Signed-off-by: Lai Jiangshan <jiangshan.ljs@antgroup.com> Message-Id: <20220311070346.45023-5-jiangshanlai@gmail.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> |
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Lai Jiangshan
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8873c1434f |
KVM: X86: Rename variable smap to not_smap in permission_fault()
Comments above the variable says the bit is set when SMAP is overridden or the same meaning in update_permission_bitmask(): it is not subjected to SMAP restriction. Renaming it to reflect the negative implication and make the code better readability. Signed-off-by: Lai Jiangshan <jiangshan.ljs@antgroup.com> Message-Id: <20220311070346.45023-4-jiangshanlai@gmail.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> |
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Lai Jiangshan
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94b4a2f174 |
KVM: X86: Fix comments in update_permission_bitmask
The commit
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Lai Jiangshan
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5b22bbe717 |
KVM: X86: Change the type of access u32 to u64
Change the type of access u32 to u64 for FNAME(walk_addr) and ->gva_to_gpa(). The kinds of accesses are usually combinations of UWX, and VMX/SVM's nested paging adds a new factor of access: is it an access for a guest page table or for a final guest physical address. And SMAP relies a factor for supervisor access: explicit or implicit. So @access in FNAME(walk_addr) and ->gva_to_gpa() is better to include all these information to do the walk. Although @access(u32) has enough bits to encode all the kinds, this patch extends it to u64: o Extra bits will be in the higher 32 bits, so that we can easily obtain the traditional access mode (UWX) by converting it to u32. o Reuse the value for the access kind defined by SVM's nested paging (PFERR_GUEST_FINAL_MASK and PFERR_GUEST_PAGE_MASK) as @error_code in kvm_handle_page_fault(). Signed-off-by: Lai Jiangshan <jiangshan.ljs@antgroup.com> Message-Id: <20220311070346.45023-2-jiangshanlai@gmail.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> |
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David Woodhouse
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cf1d88b36b |
KVM: Remove dirty handling from gfn_to_pfn_cache completely
It isn't OK to cache the dirty status of a page in internal structures for an indefinite period of time. Any time a vCPU exits the run loop to userspace might be its last; the VMM might do its final check of the dirty log, flush the last remaining dirty pages to the destination and complete a live migration. If we have internal 'dirty' state which doesn't get flushed until the vCPU is finally destroyed on the source after migration is complete, then we have lost data because that will escape the final copy. This problem already exists with the use of kvm_vcpu_unmap() to mark pages dirty in e.g. VMX nesting. Note that the actual Linux MM already considers the page to be dirty since we have a writeable mapping of it. This is just about the KVM dirty logging. For the nesting-style use cases (KVM_GUEST_USES_PFN) we will need to track which gfn_to_pfn_caches have been used and explicitly mark the corresponding pages dirty before returning to userspace. But we would have needed external tracking of that anyway, rather than walking the full list of GPCs to find those belonging to this vCPU which are dirty. So let's rely *solely* on that external tracking, and keep it simple rather than laying a tempting trap for callers to fall into. Signed-off-by: David Woodhouse <dwmw@amazon.co.uk> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Message-Id: <20220303154127.202856-3-dwmw2@infradead.org> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> |
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Sean Christopherson
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d0d96121d0 |
KVM: Use enum to track if cached PFN will be used in guest and/or host
Replace the guest_uses_pa and kernel_map booleans in the PFN cache code with a unified enum/bitmask. Using explicit names makes it easier to review and audit call sites. Opportunistically add a WARN to prevent passing garbage; instantating a cache without declaring its usage is either buggy or pointless. Signed-off-by: Sean Christopherson <seanjc@google.com> Signed-off-by: David Woodhouse <dwmw@amazon.co.uk> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Message-Id: <20220303154127.202856-2-dwmw2@infradead.org> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> |
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Peter Gonda
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4a9e7b9ea2 |
KVM: SVM: Fix kvm_cache_regs.h inclusions for is_guest_mode()
Include kvm_cache_regs.h to pick up the definition of is_guest_mode(),
which is referenced by nested_svm_virtualize_tpr() in svm.h. Remove
include from svm_onhpyerv.c which was done only because of lack of
include in svm.h.
Fixes:
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Jim Mattson
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95b065bf5c |
KVM: x86/pmu: Use different raw event masks for AMD and Intel
The third nybble of AMD's event select overlaps with Intel's IN_TX and
IN_TXCP bits. Therefore, we can't use AMD64_RAW_EVENT_MASK on Intel
platforms that support TSX.
Declare a raw_event_mask in the kvm_pmu structure, initialize it in
the vendor-specific pmu_refresh() functions, and use that mask for
PERF_TYPE_RAW configurations in reprogram_gp_counter().
Fixes:
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Sean Christopherson
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f47e5bbbc9 |
KVM: x86/mmu: Zap only TDP MMU leafs in zap range and mmu_notifier unmap
Re-introduce zapping only leaf SPTEs in kvm_zap_gfn_range() and kvm_tdp_mmu_unmap_gfn_range(), this time without losing a pending TLB flush when processing multiple roots (including nested TDP shadow roots). Dropping the TLB flush resulted in random crashes when running Hyper-V Server 2019 in a guest with KSM enabled in the host (or any source of mmu_notifier invalidations, KSM is just the easiest to force). This effectively revert commits |
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Yi Wang
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a80ced6ea5 |
KVM: SVM: fix panic on out-of-bounds guest IRQ
As guest_irq is coming from KVM_IRQFD API call, it may trigger
crash in svm_update_pi_irte() due to out-of-bounds:
crash> bt
PID: 22218 TASK: ffff951a6ad74980 CPU: 73 COMMAND: "vcpu8"
#0 [ffffb1ba6707fa40] machine_kexec at ffffffff8565b397
#1 [ffffb1ba6707fa90] __crash_kexec at ffffffff85788a6d
#2 [ffffb1ba6707fb58] crash_kexec at ffffffff8578995d
#3 [ffffb1ba6707fb70] oops_end at ffffffff85623c0d
#4 [ffffb1ba6707fb90] no_context at ffffffff856692c9
#5 [ffffb1ba6707fbf8] exc_page_fault at ffffffff85f95b51
#6 [ffffb1ba6707fc50] asm_exc_page_fault at ffffffff86000ace
[exception RIP: svm_update_pi_irte+227]
RIP: ffffffffc0761b53 RSP: ffffb1ba6707fd08 RFLAGS: 00010086
RAX: ffffb1ba6707fd78 RBX: ffffb1ba66d91000 RCX: 0000000000000001
RDX: 00003c803f63f1c0 RSI: 000000000000019a RDI: ffffb1ba66db2ab8
RBP: 000000000000019a R8: 0000000000000040 R9: ffff94ca41b82200
R10: ffffffffffffffcf R11: 0000000000000001 R12: 0000000000000001
R13: 0000000000000001 R14: ffffffffffffffcf R15: 000000000000005f
ORIG_RAX: ffffffffffffffff CS: 0010 SS: 0018
#7 [ffffb1ba6707fdb8] kvm_irq_routing_update at ffffffffc09f19a1 [kvm]
#8 [ffffb1ba6707fde0] kvm_set_irq_routing at ffffffffc09f2133 [kvm]
#9 [ffffb1ba6707fe18] kvm_vm_ioctl at ffffffffc09ef544 [kvm]
RIP: 00007f143c36488b RSP: 00007f143a4e04b8 RFLAGS: 00000246
RAX: ffffffffffffffda RBX: 00007f05780041d0 RCX: 00007f143c36488b
RDX: 00007f05780041d0 RSI: 000000004008ae6a RDI: 0000000000000020
RBP: 00000000000004e8 R8: 0000000000000008 R9: 00007f05780041e0
R10: 00007f0578004560 R11: 0000000000000246 R12: 00000000000004e0
R13: 000000000000001a R14: 00007f1424001c60 R15: 00007f0578003bc0
ORIG_RAX: 0000000000000010 CS: 0033 SS: 002b
Vmx have been fix this in commit
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Paolo Bonzini
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a1a39128fa |
KVM: MMU: propagate alloc_workqueue failure
If kvm->arch.tdp_mmu_zap_wq cannot be created, the failure has to be propagated up to kvm_mmu_init_vm and kvm_arch_init_vm. kvm_arch_init_vm also has to undo all the initialization, so group all the MMU initialization code at the beginning and handle cleaning up of kvm_page_track_init. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> |
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Linus Torvalds
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88e6c02076 |
Merge branch 'work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull vfs updates from Al Viro: "Assorted bits and pieces" * 'work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: aio: drop needless assignment in aio_read() clean overflow checks in count_mounts() a bit seq_file: fix NULL pointer arithmetic warning uml/x86: use x86 load_unaligned_zeropad() asm/user.h: killed unused macros constify struct path argument of finish_automount()/do_add_mount() fs: Remove FIXME comment in generic_write_checks() |
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Linus Torvalds
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e8b767f5e0 |
This pull request contains the following changes for UML:
- Devicetree support (for testing) - Various cleanups and fixes: UBD, port_user, uml_mconsole - Maintainer update -----BEGIN PGP SIGNATURE----- iQJKBAABCAA0FiEEdgfidid8lnn52cLTZvlZhesYu8EFAmJFwUMWHHJpY2hhcmRA c2lnbWEtc3Rhci5hdAAKCRBm+VmF6xi7wQqBD/9gLyeiVp2eu1YFVir64IASgVjK lNdlAfUwfebtEsw65JcfY8K64910ahw6TvkjTT2A+QGeJIYaVwmw69bLXJUvQq31 C7ZDsMHptuNiZrHDL9SoA0DfwqRdJx3tgGzDnSkhX+2T7Zs5n1nLRMBmn/NJV9Qy CmxG9fLH1VsU0p6RI76WST3GPLOqWa3jCeHK1vMGZNXI+eo5prHc59lkOcT7lEy7 M4vJRaAV6pCDDYMQdDOYr1PDEeG7/h49EqdKylkOhonDyYB649rL6Lc9nRBvSts3 NXX/qYy1Sj1AlOSR5IOon6QCyk1hap9kr85QoCtz3VMabD/yLlBovZzLOLaF+0S6 dQWgKg806g8QYQGxN03Ph0Pb5cA6hAjr8nVmAuICJDWgmY6Oo74pEvhI8toofFzk NJzwa6G99xNhfggeTcGdG0ddQDT8N3enKspDPkzpN127GzU5cgvI1Z8wnZXB7JDM zLMCxzwehocCSrFlh9aQDFK1XJfEWuP66xEPl5cX46//IMKqsrXEOjNlCTRUmA5F OhU4qqb01OW3K4HPaAkBcGPZ0HhFn6JREUFyNW07dg6s73IWzf0CaNKeYJS7abln tdvfPg3OPNXCjHd3aCW22EzuB9R/K8BNMkva3QQZxtUa+tOjBdBd9JBJ+vHGA1MN 7/k60wl1dt8/N9yHFg== =YsK8 -----END PGP SIGNATURE----- Merge tag 'for-linus-5.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rw/uml Pull UML updates from Richard Weinberger: - Devicetree support (for testing) - Various cleanups and fixes: UBD, port_user, uml_mconsole - Maintainer update * tag 'for-linus-5.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rw/uml: um: run_helper: Write error message to kernel log on exec failure on host um: port_user: Improve error handling when port-helper is not found um: port_user: Allow setting path to port-helper using UML_PORT_HELPER envvar um: port_user: Search for in.telnetd in PATH um: clang: Strip out -mno-global-merge from USER_CFLAGS docs: UML: Mention telnetd for port channel um: Remove unused timeval_to_ns() function um: Fix uml_mconsole stop/go um: Cleanup syscall_handler_t definition/cast, fix warning uml: net: vector: fix const issue um: Fix WRITE_ZEROES in the UBD Driver um: Migrate vector drivers to NAPI um: Fix order of dtb unflatten/early init um: fix and optimize xor select template for CONFIG64 and timetravel mode um: Document dtb command line option lib/logic_iomem: correct fallback config references um: Remove duplicated include in syscalls_64.c MAINTAINERS: Update UserModeLinux entry |
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Linus Torvalds
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b8321ed4a4 |
Kbuild updates for v5.18
- Add new environment variables, USERCFLAGS and USERLDFLAGS to allow
additional flags to be passed to user-space programs.
- Fix missing fflush() bugs in Kconfig and fixdep
- Fix a minor bug in the comment format of the .config file
- Make kallsyms ignore llvm's local labels, .L*
- Fix UAPI compile-test for cross-compiling with Clang
- Extend the LLVM= syntax to support LLVM=<suffix> form for using a
particular version of LLVm, and LLVM=<prefix> form for using custom
LLVM in a particular directory path.
- Clean up Makefiles
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Merge tag 'kbuild-v5.18-v2' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild
Pull Kbuild updates from Masahiro Yamada:
- Add new environment variables, USERCFLAGS and USERLDFLAGS to allow
additional flags to be passed to user-space programs.
- Fix missing fflush() bugs in Kconfig and fixdep
- Fix a minor bug in the comment format of the .config file
- Make kallsyms ignore llvm's local labels, .L*
- Fix UAPI compile-test for cross-compiling with Clang
- Extend the LLVM= syntax to support LLVM=<suffix> form for using a
particular version of LLVm, and LLVM=<prefix> form for using custom
LLVM in a particular directory path.
- Clean up Makefiles
* tag 'kbuild-v5.18-v2' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild:
kbuild: Make $(LLVM) more flexible
kbuild: add --target to correctly cross-compile UAPI headers with Clang
fixdep: use fflush() and ferror() to ensure successful write to files
arch: syscalls: simplify uapi/kapi directory creation
usr/include: replace extra-y with always-y
certs: simplify empty certs creation in certs/Makefile
certs: include certs/signing_key.x509 unconditionally
kallsyms: ignore all local labels prefixed by '.L'
kconfig: fix missing '# end of' for empty menu
kconfig: add fflush() before ferror() check
kbuild: replace $(if A,A,B) with $(or A,B)
kbuild: Add environment variables for userprogs flags
kbuild: unify cmd_copy and cmd_shipped
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Linus Torvalds
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2975dbdc39 |
Networking fixes for 5.18-rc1 and rethook patches.
Features:
- kprobes: rethook: x86: replace kretprobe trampoline with rethook
Current release - regressions:
- sfc: avoid null-deref on systems without NUMA awareness
in the new queue sizing code
Current release - new code bugs:
- vxlan: do not feed vxlan_vnifilter_dump_dev with non-vxlan devices
- eth: lan966x: fix null-deref on PHY pointer in timestamp ioctl
when interface is down
Previous releases - always broken:
- openvswitch: correct neighbor discovery target mask field
in the flow dump
- wireguard: ignore v6 endpoints when ipv6 is disabled and fix a leak
- rxrpc: fix call timer start racing with call destruction
- rxrpc: fix null-deref when security type is rxrpc_no_security
- can: fix UAF bugs around echo skbs in multiple drivers
Misc:
- docs: move netdev-FAQ to the "process" section of the documentation
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Merge tag 'net-5.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Pull more networking updates from Jakub Kicinski:
"Networking fixes and rethook patches.
Features:
- kprobes: rethook: x86: replace kretprobe trampoline with rethook
Current release - regressions:
- sfc: avoid null-deref on systems without NUMA awareness in the new
queue sizing code
Current release - new code bugs:
- vxlan: do not feed vxlan_vnifilter_dump_dev with non-vxlan devices
- eth: lan966x: fix null-deref on PHY pointer in timestamp ioctl when
interface is down
Previous releases - always broken:
- openvswitch: correct neighbor discovery target mask field in the
flow dump
- wireguard: ignore v6 endpoints when ipv6 is disabled and fix a leak
- rxrpc: fix call timer start racing with call destruction
- rxrpc: fix null-deref when security type is rxrpc_no_security
- can: fix UAF bugs around echo skbs in multiple drivers
Misc:
- docs: move netdev-FAQ to the 'process' section of the
documentation"
* tag 'net-5.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (57 commits)
vxlan: do not feed vxlan_vnifilter_dump_dev with non vxlan devices
openvswitch: Add recirc_id to recirc warning
rxrpc: fix some null-ptr-deref bugs in server_key.c
rxrpc: Fix call timer start racing with call destruction
net: hns3: fix software vlan talbe of vlan 0 inconsistent with hardware
net: hns3: fix the concurrency between functions reading debugfs
docs: netdev: move the netdev-FAQ to the process pages
docs: netdev: broaden the new vs old code formatting guidelines
docs: netdev: call out the merge window in tag checking
docs: netdev: add missing back ticks
docs: netdev: make the testing requirement more stringent
docs: netdev: add a question about re-posting frequency
docs: netdev: rephrase the 'should I update patchwork' question
docs: netdev: rephrase the 'Under review' question
docs: netdev: shorten the name and mention msgid for patch status
docs: netdev: note that RFC postings are allowed any time
docs: netdev: turn the net-next closed into a Warning
docs: netdev: move the patch marking section up
docs: netdev: minor reword
docs: netdev: replace references to old archives
...
|
||
|
Linus Torvalds
|
93235e3df2 |
This push fixes the following issues:
- Missing Kconfig dependency on arm that leads to boot failure. - x86 SLS fixes. - Reference leak in the stm32 driver. -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEn51F/lCuNhUwmDeSxycdCkmxi6cFAmJD5lYACgkQxycdCkmx i6cE1w//Xp0x6/m+iMOtctbBy8dLRoKO3ADUxFI+Y+GdYYkUuRX5YKFRRBIIsRWv 1RLv9C53g5It7O5ohtH2oMrefLiZ2jWLojfBBrv/1pvol6r1LsAxSsRN9QrFSNAB Bsv6RouB/HYaMjbwEroPlj9/3XUlvsbvb4aNGxSnpcNI12HifxYRh3FPlJj/mdHh SPvPqpSewuDSajNubHfRAAvayG3md7iOZBFx1q+fAaczHiO5NK8DslktFlyRUbeV KT0YosZ7VuGLWgsQD052FYKqApqRzj9GmePtO/n5F24e+K5fbo0vP1XzjpTI2KAh I+vZ4CvTjSz3feFSsCNjLjd+KGj+cCuG2TrTn0rhM9o2bINGw+VWwSj3Wr7EBsS5 Gf9CzdLrlcpM+HfDW2HMEqX+MXsaGQ0eoKxWs5BeKrPAUtbWTG9Y0UNrZ/eeoLYa 4j6r3Lr0eb6zLzy6rRkG6iKN2tBUmj3BC6KZjNJaHq+bxHTY2myU1YLtcTHZXvKc x6I5G6e/AyRNQwcSoGYOnAnp8PfZyPaeMRR3ydxqRL/dZiJrH7xUjF0gr4ZYLcDr 9khwTmlMiSQA7X/FlgnmGFkVlFQdxIF1jQ5RXn5K/CrzWHgmbdoKB2rVJB/mdSMj TwAGCbL8r0Sr7SSkisHrgZN+mGOt4XxpPWh+IpkLUQx4iB1XI7I= =qKtj -----END PGP SIGNATURE----- Merge tag 'v5.18-p1' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6 Pull crypto fixes from Herbert Xu: - Missing Kconfig dependency on arm that leads to boot failure - x86 SLS fixes - Reference leak in the stm32 driver * tag 'v5.18-p1' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: crypto: x86/sm3 - Fixup SLS crypto: x86/poly1305 - Fixup SLS crypto: x86/chacha20 - Avoid spurious jumps to other functions crypto: stm32 - fix reference leak in stm32_crc_remove crypto: arm/aes-neonbs-cbc - Select generic cbc and aes |
||
Thomas Gleixner
|
7dd5ad2d3e |
Revert "signal, x86: Delay calling signals in atomic on RT enabled kernels"
Revert commit
|
||
Masahiro Yamada
|
bbc90bc1bd |
arch: syscalls: simplify uapi/kapi directory creation
$(shell ...) expands to empty. There is no need to assign it to _dummy. Signed-off-by: Masahiro Yamada <masahiroy@kernel.org> Acked-by: Geert Uytterhoeven <geert@linux-m68k.org> |
||
|
Thomas Gleixner
|
d6d6d50f1e |
x86/fpu/xstate: Consolidate size calculations
Use the offset calculation to do the size calculation which avoids yet
another series of CPUID instructions for each invocation.
[ Fix the FP/SSE only case which missed to take the xstate
header into account, as
Reported-by: kernel test robot <oliver.sang@intel.com> ]
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Borislav Petkov <bp@suse.de>
Link: https://lore.kernel.org/r/87o81pgbp2.ffs@tglx
|
||
|
Thomas Gleixner
|
781c64bfcb |
x86/fpu/xstate: Handle supervisor states in XSTATE permissions
The size calculation in __xstate_request_perm() fails to take supervisor
states into account because the permission bitmap is only relevant for user
states.
Up to 5.17 this does not matter because there are no supervisor states
supported, but the (re-)enabling of ENQCMD makes them available.
Fixes:
|
||
|
Thomas Gleixner
|
7aa5128b5f |
x86/fpu/xsave: Handle compacted offsets correctly with supervisor states
So far the cached fixed compacted offsets worked, but with (re-)enabling
of ENQCMD this does no longer work with KVM fpstate.
KVM does not have supervisor features enabled for the guest FPU, which
means that KVM has then a different XSAVE area layout than the host FPU
state. This in turn breaks the copy from/to UABI functions when invoked for
a guest state.
Remove the pre-calculated compacted offsets and calculate the offset
of each component at runtime based on the XCOMP_BV field in the XSAVE
header.
The runtime overhead is not interesting because these copy from/to UABI
functions are not used in critical fast paths. KVM uses them to save and
restore FPU state during migration. The host uses them for ptrace and for
the slow path of 32bit signal handling.
Fixes:
|
||
|
Thomas Gleixner
|
6afbb58cc2 |
x86/fpu: Cache xfeature flags from CPUID
In preparation for runtime calculation of XSAVE offsets cache the feature
flags for each XSTATE component during feature enumeration via CPUID(0xD).
EDX has two relevant bits:
0 Supervisor component
1 Feature storage must be 64 byte aligned
These bits are currently only evaluated during init, but the alignment bit
must be cached to make runtime calculation of XSAVE offsets efficient.
Cache the full EDX content and use it for the existing alignment and
supervisor checks.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Borislav Petkov <bp@suse.de>
Link: https://lore.kernel.org/r/20220324134623.573656209@linutronix.de
|
||
|
Thomas Gleixner
|
35a77d4503 |
x86/fpu/xsave: Initialize offset/size cache early
Reading XSTATE feature information from CPUID over and over does not make sense. The information has to be cached anyway, so it can be done early. Prepare for runtime calculation of XSTATE offsets and allow consolidation of the size calculation functions in a later step. Rename the function while at it as it does not setup any features. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Borislav Petkov <bp@suse.de> Link: https://lore.kernel.org/r/20220324134623.519411939@linutronix.de |
||
|
Thomas Gleixner
|
d47f71f6de |
x86/fpu: Remove unused supervisor only offsets
No users. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Borislav Petkov <bp@suse.de> Link: https://lore.kernel.org/r/20220324134623.465066249@linutronix.de |
||
Peter Zijlstra
|
aa8e73eed7 |
crypto: x86/sm3 - Fixup SLS
This missed the big asm update due to being merged through the crypto
tree.
Fixes:
|
||
|
Thomas Gleixner
|
a9f84fb715 |
x86/fpu: Remove redundant XCOMP_BV initialization
fpu_copy_uabi_to_guest_fpstate() initializes the XCOMP_BV field in the
XSAVE header. That's a leftover from the old KVM FPU buffer handling code.
Since
|
||
Vitaly Kuznetsov
|
b1e34d3253 |
KVM: x86: Forbid VMM to set SYNIC/STIMER MSRs when SynIC wasn't activated
Setting non-zero values to SYNIC/STIMER MSRs activates certain features,
this should not happen when KVM_CAP_HYPERV_SYNIC{,2} was not activated.
Note, it would've been better to forbid writing anything to SYNIC/STIMER
MSRs, including zeroes, however, at least QEMU tries clearing
HV_X64_MSR_STIMER0_CONFIG without SynIC. HV_X64_MSR_EOM MSR is somewhat
'special' as writing zero there triggers an action, this also should not
happen when SynIC wasn't activated.
Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Message-Id: <20220325132140.25650-4-vkuznets@redhat.com>
Cc: stable@vger.kernel.org
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
|
||
|
Vitaly Kuznetsov
|
00b5f37189 |
KVM: x86: Avoid theoretical NULL pointer dereference in kvm_irq_delivery_to_apic_fast()
When kvm_irq_delivery_to_apic_fast() is called with APIC_DEST_SELF shorthand, 'src' must not be NULL. Crash the VM with KVM_BUG_ON() instead of crashing the host. Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com> Message-Id: <20220325132140.25650-3-vkuznets@redhat.com> Cc: stable@vger.kernel.org Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> |
||
|
Vitaly Kuznetsov
|
7ec37d1cbe |
KVM: x86: Check lapic_in_kernel() before attempting to set a SynIC irq
When KVM_CAP_HYPERV_SYNIC{,2} is activated, KVM already checks for
irqchip_in_kernel() so normally SynIC irqs should never be set. It is,
however, possible for a misbehaving VMM to write to SYNIC/STIMER MSRs
causing erroneous behavior.
The immediate issue being fixed is that kvm_irq_delivery_to_apic()
(kvm_irq_delivery_to_apic_fast()) crashes when called with
'irq.shorthand = APIC_DEST_SELF' and 'src == NULL'.
Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Message-Id: <20220325132140.25650-2-vkuznets@redhat.com>
Cc: stable@vger.kernel.org
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
|
||
Nathan Chancellor
|
07ea4ab1f9 |
KVM: x86: Fix clang -Wimplicit-fallthrough in do_host_cpuid()
Clang warns:
arch/x86/kvm/cpuid.c:739:2: error: unannotated fall-through between switch labels [-Werror,-Wimplicit-fallthrough]
default:
^
arch/x86/kvm/cpuid.c:739:2: note: insert 'break;' to avoid fall-through
default:
^
break;
1 error generated.
Clang is a little more pedantic than GCC, which does not warn when
falling through to a case that is just break or return. Clang's version
is more in line with the kernel's own stance in deprecated.rst, which
states that all switch/case blocks must end in either break,
fallthrough, continue, goto, or return. Add the missing break to silence
the warning.
Fixes:
|
||
Joerg Roedel
|
4009a4ac82 |
x86/sev: Unroll string mmio with CC_ATTR_GUEST_UNROLL_STRING_IO
The io-specific memcpy/memset functions use string mmio accesses to do their work. Under SEV, the hypervisor can't emulate these instructions because they read/write directly from/to encrypted memory. KVM will inject a page fault exception into the guest when it is asked to emulate string mmio instructions for an SEV guest: BUG: unable to handle page fault for address: ffffc90000065068 #PF: supervisor read access in kernel mode #PF: error_code(0x0000) - not-present page PGD 8000100000067 P4D 8000100000067 PUD 80001000fb067 PMD 80001000fc067 PTE 80000000fed40173 Oops: 0000 [#1] PREEMPT SMP NOPTI CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.17.0-rc7 #3 As string mmio for an SEV guest can not be supported by the hypervisor, unroll the instructions for CC_ATTR_GUEST_UNROLL_STRING_IO enabled kernels. This issue appears when kernels are launched in recent libvirt-managed SEV virtual machines, because virt-install started to add a tpm-crb device to the guest by default and proactively because, raisins: |
||
Masami Hiramatsu
|
45c23bf4d1 |
x86,kprobes: Fix optprobe trampoline to generate complete pt_regs
Currently the optprobe trampoline template code ganerate an almost complete pt_regs on-stack, everything except regs->ss. The 'regs->ss' points to the top of stack, which is not a valid segment decriptor. As same as the rethook does, complete the job by also pushing ss. Suggested-by: Peter Zijlstra (Intel) <peterz@infradead.org> Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Link: https://lore.kernel.org/bpf/164826166027.2455864.14759128090648961900.stgit@devnote2 |
||
|
Peter Zijlstra
|
0ef6f5c093 |
x86,rethook: Fix arch_rethook_trampoline() to generate a complete pt_regs
Currently arch_rethook_trampoline() generates an almost complete pt_regs on-stack, everything except regs->ss that is, that currently points to the fake return address, which is not a valid segment descriptor. Since interpretation of regs->[sb]p should be done in the context of regs->ss, and we have code actually doing that (see arch/x86/lib/insn-eval.c for instance), complete the job by also pushing ss. This ensures that anybody who does do look at regs->ss doesn't mysteriously malfunction, avoiding much future pain. Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Reviewed-by: Masami Hiramatsu <mhiramat@kernel.org> Link: https://lore.kernel.org/bpf/164826164851.2455864.17272661073069737350.stgit@devnote2 |
||
|
Masami Hiramatsu
|
f3a112c0c4 |
x86,rethook,kprobes: Replace kretprobe with rethook on x86
Replaces the kretprobe code with rethook on x86. With this patch, kretprobe on x86 uses the rethook instead of kretprobe specific trampoline code. Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Tested-by: Jiri Olsa <jolsa@kernel.org> Link: https://lore.kernel.org/bpf/164826163692.2455864.13745421016848209527.stgit@devnote2 |
||
|
Linus Torvalds
|
1930a6e739 |
ptrace: Cleanups for v5.18
This set of changes removes tracehook.h, moves modification of all of
the ptrace fields inside of siglock to remove races, adds a missing
permission check to ptrace.c
The removal of tracehook.h is quite significant as it has been a major
source of confusion in recent years. Much of that confusion was
around task_work and TIF_NOTIFY_SIGNAL (which I have now decoupled
making the semantics clearer).
For people who don't know tracehook.h is a vestiage of an attempt to
implement uprobes like functionality that was never fully merged, and
was later superseeded by uprobes when uprobes was merged. For many
years now we have been removing what tracehook functionaly a little
bit at a time. To the point where now anything left in tracehook.h is
some weird strange thing that is difficult to understand.
Eric W. Biederman (15):
ptrace: Move ptrace_report_syscall into ptrace.h
ptrace/arm: Rename tracehook_report_syscall report_syscall
ptrace: Create ptrace_report_syscall_{entry,exit} in ptrace.h
ptrace: Remove arch_syscall_{enter,exit}_tracehook
ptrace: Remove tracehook_signal_handler
task_work: Remove unnecessary include from posix_timers.h
task_work: Introduce task_work_pending
task_work: Call tracehook_notify_signal from get_signal on all architectures
task_work: Decouple TIF_NOTIFY_SIGNAL and task_work
signal: Move set_notify_signal and clear_notify_signal into sched/signal.h
resume_user_mode: Remove #ifdef TIF_NOTIFY_RESUME in set_notify_resume
resume_user_mode: Move to resume_user_mode.h
tracehook: Remove tracehook.h
ptrace: Move setting/clearing ptrace_message into ptrace_stop
ptrace: Return the signal to continue with from ptrace_stop
Jann Horn (1):
ptrace: Check PTRACE_O_SUSPEND_SECCOMP permission on PTRACE_SEIZE
Yang Li (1):
ptrace: Remove duplicated include in ptrace.c
MAINTAINERS | 1 -
arch/Kconfig | 5 +-
arch/alpha/kernel/ptrace.c | 5 +-
arch/alpha/kernel/signal.c | 4 +-
arch/arc/kernel/ptrace.c | 5 +-
arch/arc/kernel/signal.c | 4 +-
arch/arm/kernel/ptrace.c | 12 +-
arch/arm/kernel/signal.c | 4 +-
arch/arm64/kernel/ptrace.c | 14 +--
arch/arm64/kernel/signal.c | 4 +-
arch/csky/kernel/ptrace.c | 5 +-
arch/csky/kernel/signal.c | 4 +-
arch/h8300/kernel/ptrace.c | 5 +-
arch/h8300/kernel/signal.c | 4 +-
arch/hexagon/kernel/process.c | 4 +-
arch/hexagon/kernel/signal.c | 1 -
arch/hexagon/kernel/traps.c | 6 +-
arch/ia64/kernel/process.c | 4 +-
arch/ia64/kernel/ptrace.c | 6 +-
arch/ia64/kernel/signal.c | 1 -
arch/m68k/kernel/ptrace.c | 5 +-
arch/m68k/kernel/signal.c | 4 +-
arch/microblaze/kernel/ptrace.c | 5 +-
arch/microblaze/kernel/signal.c | 4 +-
arch/mips/kernel/ptrace.c | 5 +-
arch/mips/kernel/signal.c | 4 +-
arch/nds32/include/asm/syscall.h | 2 +-
arch/nds32/kernel/ptrace.c | 5 +-
arch/nds32/kernel/signal.c | 4 +-
arch/nios2/kernel/ptrace.c | 5 +-
arch/nios2/kernel/signal.c | 4 +-
arch/openrisc/kernel/ptrace.c | 5 +-
arch/openrisc/kernel/signal.c | 4 +-
arch/parisc/kernel/ptrace.c | 7 +-
arch/parisc/kernel/signal.c | 4 +-
arch/powerpc/kernel/ptrace/ptrace.c | 8 +-
arch/powerpc/kernel/signal.c | 4 +-
arch/riscv/kernel/ptrace.c | 5 +-
arch/riscv/kernel/signal.c | 4 +-
arch/s390/include/asm/entry-common.h | 1 -
arch/s390/kernel/ptrace.c | 1 -
arch/s390/kernel/signal.c | 5 +-
arch/sh/kernel/ptrace_32.c | 5 +-
arch/sh/kernel/signal_32.c | 4 +-
arch/sparc/kernel/ptrace_32.c | 5 +-
arch/sparc/kernel/ptrace_64.c | 5 +-
arch/sparc/kernel/signal32.c | 1 -
arch/sparc/kernel/signal_32.c | 4 +-
arch/sparc/kernel/signal_64.c | 4 +-
arch/um/kernel/process.c | 4 +-
arch/um/kernel/ptrace.c | 5 +-
arch/x86/kernel/ptrace.c | 1 -
arch/x86/kernel/signal.c | 5 +-
arch/x86/mm/tlb.c | 1 +
arch/xtensa/kernel/ptrace.c | 5 +-
arch/xtensa/kernel/signal.c | 4 +-
block/blk-cgroup.c | 2 +-
fs/coredump.c | 1 -
fs/exec.c | 1 -
fs/io-wq.c | 6 +-
fs/io_uring.c | 11 +-
fs/proc/array.c | 1 -
fs/proc/base.c | 1 -
include/asm-generic/syscall.h | 2 +-
include/linux/entry-common.h | 47 +-------
include/linux/entry-kvm.h | 2 +-
include/linux/posix-timers.h | 1 -
include/linux/ptrace.h | 81 ++++++++++++-
include/linux/resume_user_mode.h | 64 ++++++++++
include/linux/sched/signal.h | 17 +++
include/linux/task_work.h | 5 +
include/linux/tracehook.h | 226 -----------------------------------
include/uapi/linux/ptrace.h | 2 +-
kernel/entry/common.c | 19 +--
kernel/entry/kvm.c | 9 +-
kernel/exit.c | 3 +-
kernel/livepatch/transition.c | 1 -
kernel/ptrace.c | 47 +++++---
kernel/seccomp.c | 1 -
kernel/signal.c | 62 +++++-----
kernel/task_work.c | 4 +-
kernel/time/posix-cpu-timers.c | 1 +
mm/memcontrol.c | 2 +-
security/apparmor/domain.c | 1 -
security/selinux/hooks.c | 1 -
85 files changed, 372 insertions(+), 495 deletions(-)
Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
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Merge tag 'ptrace-cleanups-for-v5.18' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace
Pull ptrace cleanups from Eric Biederman:
"This set of changes removes tracehook.h, moves modification of all of
the ptrace fields inside of siglock to remove races, adds a missing
permission check to ptrace.c
The removal of tracehook.h is quite significant as it has been a major
source of confusion in recent years. Much of that confusion was around
task_work and TIF_NOTIFY_SIGNAL (which I have now decoupled making the
semantics clearer).
For people who don't know tracehook.h is a vestiage of an attempt to
implement uprobes like functionality that was never fully merged, and
was later superseeded by uprobes when uprobes was merged. For many
years now we have been removing what tracehook functionaly a little
bit at a time. To the point where anything left in tracehook.h was
some weird strange thing that was difficult to understand"
* tag 'ptrace-cleanups-for-v5.18' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace:
ptrace: Remove duplicated include in ptrace.c
ptrace: Check PTRACE_O_SUSPEND_SECCOMP permission on PTRACE_SEIZE
ptrace: Return the signal to continue with from ptrace_stop
ptrace: Move setting/clearing ptrace_message into ptrace_stop
tracehook: Remove tracehook.h
resume_user_mode: Move to resume_user_mode.h
resume_user_mode: Remove #ifdef TIF_NOTIFY_RESUME in set_notify_resume
signal: Move set_notify_signal and clear_notify_signal into sched/signal.h
task_work: Decouple TIF_NOTIFY_SIGNAL and task_work
task_work: Call tracehook_notify_signal from get_signal on all architectures
task_work: Introduce task_work_pending
task_work: Remove unnecessary include from posix_timers.h
ptrace: Remove tracehook_signal_handler
ptrace: Remove arch_syscall_{enter,exit}_tracehook
ptrace: Create ptrace_report_syscall_{entry,exit} in ptrace.h
ptrace/arm: Rename tracehook_report_syscall report_syscall
ptrace: Move ptrace_report_syscall into ptrace.h
|
||
|
Linus Torvalds
|
a701f370b5 |
xen: branch for v5.18-rc1
-----BEGIN PGP SIGNATURE----- iHUEABYIAB0WIQRTLbB6QfY48x44uB6AXGG7T9hjvgUCYkF9UwAKCRCAXGG7T9hj vsXpAPwKXI4WIQcvnVCdULQfuXpA1TbD5XZuS9OuiN/OxWHbzAEA1VHWTmS+tpZ1 ptOyoGhAWhTGeplToobDSGz5qTXEPAI= =FaKX -----END PGP SIGNATURE----- Merge tag 'for-linus-5.18-rc1-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip Pull xen updates from Juergen Gross: - A bunch of minor cleanups - A fix for kexec in Xen dom0 when executed on a high cpu number - A fix for resuming after suspend of a Xen guest with assigned PCI devices - A fix for a crash due to not disabled preemption when resuming as Xen dom0 * tag 'for-linus-5.18-rc1-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip: xen: fix is_xen_pmu() xen: don't hang when resuming PCI device arch:x86:xen: Remove unnecessary assignment in xen_apic_read() xen/grant-table: remove readonly parameter from functions xen/grant-table: remove gnttab_*transfer*() functions drivers/xen: use helper macro __ATTR_RW x86/xen: Fix kerneldoc warning xen: delay xen_hvm_init_time_ops() if kdump is boot on vcpu>=32 xen: use time_is_before_eq_jiffies() instead of open coding it |
||
|
Linus Torvalds
|
266d17a8c0 |
Driver core changes for 5.18-rc1
Here is the set of driver core changes for 5.18-rc1.
Not much here, primarily it was a bunch of cleanups and small updates:
- kobj_type cleanups for default_groups
- documentation updates
- firmware loader minor changes
- component common helper added and take advantage of it in many
drivers (the largest part of this pull request).
There will be a merge conflict in drivers/power/supply/ab8500_chargalg.c
with your tree, the merge conflict should be easy (take all the
changes).
All of these have been in linux-next for a while with no reported
problems.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'driver-core-5.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core
Pull driver core updates from Greg KH:
"Here is the set of driver core changes for 5.18-rc1.
Not much here, primarily it was a bunch of cleanups and small updates:
- kobj_type cleanups for default_groups
- documentation updates
- firmware loader minor changes
- component common helper added and take advantage of it in many
drivers (the largest part of this pull request).
All of these have been in linux-next for a while with no reported
problems"
* tag 'driver-core-5.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (54 commits)
Documentation: update stable review cycle documentation
drivers/base/dd.c : Remove the initial value of the global variable
Documentation: update stable tree link
Documentation: add link to stable release candidate tree
devres: fix typos in comments
Documentation: add note block surrounding security patch note
samples/kobject: Use sysfs_emit instead of sprintf
base: soc: Make soc_device_match() simpler and easier to read
driver core: dd: fix return value of __setup handler
driver core: Refactor sysfs and drv/bus remove hooks
driver core: Refactor multiple copies of device cleanup
scripts: get_abi.pl: Fix typo in help message
kernfs: fix typos in comments
kernfs: remove unneeded #if 0 guard
ALSA: hda/realtek: Make use of the helper component_compare_dev_name
video: omapfb: dss: Make use of the helper component_compare_dev
power: supply: ab8500: Make use of the helper component_compare_dev
ASoC: codecs: wcd938x: Make use of the helper component_compare/release_of
iommu/mediatek: Make use of the helper component_compare/release_of
drm: of: Make use of the helper component_release_of
...
|
||
Ingo Molnar
|
410ce3dd50 |
x86/config: Make the x86 defconfigs a bit more usable
- Use 'make savedefconfig' to refresh & regenerate the files - Add in KVM boot enablers - Enable the cgroup features most distros rely on [ fix bug found by Nathan Chancellor ] Acked-by: Nathan Chancellor <nathan@kernel.org> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Borislav Petkov <bp@alien8.de> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Peter Zijlstra <peterz@infradead.org> Signed-off-by: Ingo Molnar <mingo@kernel.org> Link: https://lore.kernel.org/r/YjwsUT/6PkRPjnHE@gmail.com |
||
|
Linus Torvalds
|
7001052160 |
Add support for Intel CET-IBT, available since Tigerlake (11th gen), which is a
coarse grained, hardware based, forward edge Control-Flow-Integrity mechanism where any indirect CALL/JMP must target an ENDBR instruction or suffer #CP. Additionally, since Alderlake (12th gen)/Sapphire-Rapids, speculation is limited to 2 instructions (and typically fewer) on branch targets not starting with ENDBR. CET-IBT also limits speculation of the next sequential instruction after the indirect CALL/JMP [1]. CET-IBT is fundamentally incompatible with retpolines, but provides, as described above, speculation limits itself. [1] https://www.intel.com/content/www/us/en/developer/articles/technical/software-security-guidance/technical-documentation/branch-history-injection.html -----BEGIN PGP SIGNATURE----- iQJJBAABCgAzFiEEv3OU3/byMaA0LqWJdkfhpEvA5LoFAmI/LI8VHHBldGVyekBp bmZyYWRlYWQub3JnAAoJEHZH4aRLwOS6ZnkP/2QCgQLTu6oRxv9O020CHwlaSEeD 1Hoy3loum5q5hAi1Ik3dR9p0H5u64c9qbrBVxaFoNKaLt5GKrtHaDSHNk2L/CFHX urpH65uvTLxbyZzcahkAahoJ71XU+m7PcrHLWMunw9sy10rExYVsUOlFyoyG6XCF BDCNZpdkC09ZM3vwlWGMZd5Pp+6HcZNPyoV9tpvWAS2l+WYFWAID7mflbpQ+tA8b y/hM6b3Ud0rT2ubuG1iUpopgNdwqQZ+HisMPGprh+wKZkYwS2l8pUTrz0MaBkFde go7fW16kFy2HQzGm6aIEBmfcg0palP/mFVaWP0zS62LwhJSWTn5G6xWBr3yxSsht 9gWCiI0oDZuTg698MedWmomdG2SK6yAuZuqmdKtLLoWfWgviPEi7TDFG/cKtZdAW ag8GM8T4iyYZzpCEcWO9GWbjo6TTGq30JBQefCBG47GjD0csv2ubXXx0Iey+jOwT x3E8wnv9dl8V9FSd/tMpTFmje8ges23yGrWtNpb5BRBuWTeuGiBPZED2BNyyIf+T dmewi2ufNMONgyNp27bDKopY81CPAQq9cVxqNm9Cg3eWPFnpOq2KGYEvisZ/rpEL EjMQeUBsy/C3AUFAleu1vwNnkwP/7JfKYpN00gnSyeQNZpqwxXBCKnHNgOMTXyJz beB/7u2KIUbKEkSN =jZfK -----END PGP SIGNATURE----- Merge tag 'x86_core_for_5.18_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull x86 CET-IBT (Control-Flow-Integrity) support from Peter Zijlstra: "Add support for Intel CET-IBT, available since Tigerlake (11th gen), which is a coarse grained, hardware based, forward edge Control-Flow-Integrity mechanism where any indirect CALL/JMP must target an ENDBR instruction or suffer #CP. Additionally, since Alderlake (12th gen)/Sapphire-Rapids, speculation is limited to 2 instructions (and typically fewer) on branch targets not starting with ENDBR. CET-IBT also limits speculation of the next sequential instruction after the indirect CALL/JMP [1]. CET-IBT is fundamentally incompatible with retpolines, but provides, as described above, speculation limits itself" [1] https://www.intel.com/content/www/us/en/developer/articles/technical/software-security-guidance/technical-documentation/branch-history-injection.html * tag 'x86_core_for_5.18_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (53 commits) kvm/emulate: Fix SETcc emulation for ENDBR x86/Kconfig: Only allow CONFIG_X86_KERNEL_IBT with ld.lld >= 14.0.0 x86/Kconfig: Only enable CONFIG_CC_HAS_IBT for clang >= 14.0.0 kbuild: Fixup the IBT kbuild changes x86/Kconfig: Do not allow CONFIG_X86_X32_ABI=y with llvm-objcopy x86: Remove toolchain check for X32 ABI capability x86/alternative: Use .ibt_endbr_seal to seal indirect calls objtool: Find unused ENDBR instructions objtool: Validate IBT assumptions objtool: Add IBT/ENDBR decoding objtool: Read the NOENDBR annotation x86: Annotate idtentry_df() x86,objtool: Move the ASM_REACHABLE annotation to objtool.h x86: Annotate call_on_stack() objtool: Rework ASM_REACHABLE x86: Mark __invalid_creds() __noreturn exit: Mark do_group_exit() __noreturn x86: Mark stop_this_cpu() __noreturn objtool: Ignore extra-symbol code objtool: Rename --duplicate to --lto ... |
||
|
Linus Torvalds
|
710f5d627a |
USB/Thunderbolt patches for 5.18-rc1
Here is the big set of USB and Thunderbolt changes for 5.18-rc1.
Nothing major in here, just lots of little improvements and cleanups and
new device support. Highlights are:
- list iterator fixups for when we walk past the end of the list
(a common problem that was cut/pasted in almost all USB gadget
drivers)
- xen USB driver "hardening" for malicious hosts
- xhci driver updates and fixes for more hardware types
- xhci debug cable fixes to make it actually work again
- usb gadget audio driver improvements
- usb gadget storage fixes to work with OS-X
- lots of other small usb gadget fixes and updates
- USB DWC3 driver improvements for more hardware types
- Lots of other small USB driver improvements
- DTS updates for some USB platforms
Note, the DTS updates will have a merge conflict in your tree. The
fixup should be simple, but if not, I can provide a merged tree if
needed.
All of these have been in linux-next for a while with no reported
issues.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'usb-5.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb
Pull USB/Thunderbolt updates from Greg KH:
"Here is the big set of USB and Thunderbolt changes for 5.18-rc1.
Nothing major in here, just lots of little improvements and cleanups
and new device support. Highlights are:
- list iterator fixups for when we walk past the end of the list (a
common problem that was cut/pasted in almost all USB gadget
drivers)
- xen USB driver "hardening" for malicious hosts
- xhci driver updates and fixes for more hardware types
- xhci debug cable fixes to make it actually work again
- usb gadget audio driver improvements
- usb gadget storage fixes to work with OS-X
- lots of other small usb gadget fixes and updates
- USB DWC3 driver improvements for more hardware types
- Lots of other small USB driver improvements
- DTS updates for some USB platforms
All of these have been in linux-next for a while with no reported
issues"
* tag 'usb-5.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (172 commits)
usb: gadget: fsl_qe_udc: Add missing semicolon in qe_ep_dequeue()
dt-bindings: usb: mtk-xhci: add compatible for mt8186
usb: dwc3: Issue core soft reset before enabling run/stop
usb: gadget: Makefile: remove ccflags-y
USB: usb-storage: Fix use of bitfields for hardware data in ene_ub6250.c
usb: gadget: eliminate anonymous module_init & module_exit
usb: usbip: eliminate anonymous module_init & module_exit
xen/usb: harden xen_hcd against malicious backends
usb: dwc3: gadget: Wait for ep0 xfers to complete during dequeue
usb: dwc3: gadget: move cmd_endtransfer to extra function
usb: dwc3: gadget: ep_queue simplify isoc start condition
xen/usb: don't use arbitrary_virt_to_machine()
usb: isp1760: remove redundant max_packet() macro
usb: oxu210hp-hcd: remove redundant call to max_packet() macro
usb: common: usb-conn-gpio: Make VBUS supply completely optional
USB: storage: ums-realtek: fix error code in rts51x_read_mem()
usb: early: xhci-dbc: Fix xdbc number parsing
usb: early: xhci-dbc: Remove duplicate keep parsing
x86/tsc: Be consistent about use_tsc_delay()
usb: gadget: udc: s3c2410: remove usage of list iterator past the loop body
...
|
||
|
Linus Torvalds
|
4be240b18a |
memcpy updates for v5.18-rc1
- Enable strict FORTIFY_SOURCE compile-time validation of memcpy buffers
- Add Clang features needed for FORTIFY_SOURCE support
- Enable FORTIFY_SOURCE for Clang where possible
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Merge tag 'memcpy-v5.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux
Pull FORTIFY_SOURCE updates from Kees Cook:
"This series consists of two halves:
- strict compile-time buffer size checking under FORTIFY_SOURCE for
the memcpy()-family of functions (for extensive details and
rationale, see the first commit)
- enabling FORTIFY_SOURCE for Clang, which has had many overlapping
bugs that we've finally worked past"
* tag 'memcpy-v5.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux:
fortify: Add Clang support
fortify: Make sure strlen() may still be used as a constant expression
fortify: Use __diagnose_as() for better diagnostic coverage
fortify: Make pointer arguments const
Compiler Attributes: Add __diagnose_as for Clang
Compiler Attributes: Add __overloadable for Clang
Compiler Attributes: Add __pass_object_size for Clang
fortify: Replace open-coded __gnu_inline attribute
fortify: Update compile-time tests for Clang 14
fortify: Detect struct member overflows in memset() at compile-time
fortify: Detect struct member overflows in memmove() at compile-time
fortify: Detect struct member overflows in memcpy() at compile-time
|
||
|
Linus Torvalds
|
148a650476 |
pci-v5.18-changes
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Merge tag 'pci-v5.18-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci
Pull pci updates from Bjorn Helgaas:
"Enumeration:
- Move the VGA arbiter from drivers/gpu to drivers/pci because it's
PCI-specific, not GPU-specific (Bjorn Helgaas)
- Select the default VGA device consistently whether it's enumerated
before or after VGA arbiter init, which fixes arches that enumerate
PCI devices late (Huacai Chen)
Resource management:
- Support BAR sizes up to 8TB (Dongdong Liu)
PCIe native device hotplug:
- Fix "Command Completed" tracking to avoid spurious timouts when
powering off empty slots (Liguang Zhang)
- Quirk Qualcomm devices that don't implement Command Completed
correctly, again to avoid spurious timeouts (Manivannan Sadhasivam)
Peer-to-peer DMA:
- Add Intel 3rd Gen Intel Xeon Scalable Processors to whitelist
(Michael J. Ruhl)
APM X-Gene PCIe controller driver:
- Revert generic DT parsing changes that broke some machines in the
field (Marc Zyngier)
Freescale i.MX6 PCIe controller driver:
- Allow controller probe to succeed even when no devices currently
present to allow hot-add later (Fabio Estevam)
- Enable power management on i.MX6QP (Richard Zhu)
- Assert CLKREQ# on i.MX8MM so enumeration doesn't hang when no
device is connected (Richard Zhu)
Marvell Aardvark PCIe controller driver:
- Fix MSI and MSI-X support (Marek Behún, Pali Rohár)
- Add support for ERR and PME interrupts (Pali Rohár)
Marvell MVEBU PCIe controller driver:
- Add DT binding and support for "num-lanes" (Pali Rohár)
- Add support for INTx interrupts (Pali Rohár)
Microsoft Hyper-V host bridge driver:
- Avoid unnecessary hypercalls when unmasking IRQs on ARM64 (Boqun
Feng)
Qualcomm PCIe controller driver:
- Add SM8450 DT binding and driver support (Dmitry Baryshkov)
Renesas R-Car PCIe controller driver:
- Help the controller get to the L1 state since the hardware can't do
it on its own (Marek Vasut)
- Return PCI_ERROR_RESPONSE (~0) for reads that fail on PCIe (Marek
Vasut)
SiFive FU740 PCIe controller driver:
- Drop redundant '-gpios' from DT GPIO lookup (Ben Dooks)
- Force 2.5GT/s for initial device probe (Ben Dooks)
Socionext UniPhier Pro5 controller driver:
- Add NX1 DT binding and driver support (Kunihiko Hayashi)
Synopsys DesignWare PCIe controller driver:
- Restore MSI configuration so MSI works after resume (Jisheng
Zhang)"
* tag 'pci-v5.18-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci: (94 commits)
x86/PCI: Add #includes to asm/pci_x86.h
PCI: ibmphp: Remove unused assignments
PCI: cpqphp: Remove unused assignments
PCI: fu740: Remove unused assignments
PCI: kirin: Remove unused assignments
PCI: Remove unused assignments
PCI: Declare pci_filp_private only when HAVE_PCI_MMAP
PCI: Avoid broken MSI on SB600 USB devices
PCI: fu740: Force 2.5GT/s for initial device probe
PCI: xgene: Revert "PCI: xgene: Fix IB window setup"
PCI: xgene: Revert "PCI: xgene: Use inbound resources for setup"
PCI: imx6: Assert i.MX8MM CLKREQ# even if no device present
PCI: imx6: Invoke the PHY exit function after PHY power off
PCI: rcar: Use PCI_SET_ERROR_RESPONSE after read which triggered an exception
PCI: rcar: Finish transition to L1 state in rcar_pcie_config_access()
PCI: dwc: Restore MSI Receiver mask during resume
PCI: fu740: Drop redundant '-gpios' from DT GPIO lookup
PCI/VGA: Replace full MIT license text with SPDX identifier
PCI/VGA: Use unsigned format string to print lock counts
PCI/VGA: Log bridge control messages when adding devices
...
|
||
|
Linus Torvalds
|
636f64db07 |
- More noinstr fixes
- Add an erratum workaround for Intel CPUs which, in certain circumstances, end up consuming an unrelated uncorrectable memory error when using fast string copy insns - Remove the MCE tolerance level control as it is not really needed or used anymore -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEzv7L6UO9uDPlPSfHEsHwGGHeVUoFAmI7Pe4ACgkQEsHwGGHe VUpQQRAAjEK4k+iXhWrNaX736WSaVb8qom+JFlAarrOKaJ6UpdQn+IZD8aF7iscr n1LWGYOyieFvovt69jjTeSprbCVueyhvCmOxxsvH9F2qhNklNwxKEaAPNBXgDuyJ SOs1fTZO4tS85qZbnZa/Um1keSIacBCVar49sXKsj6Ss+rg6wXnPitQh3ztGOAVn CBkNE5n6GG2ELjV+fuVOO54NixMtoElj8SIplQ0UOMlQPBO0Z5MkY5VM6LaQVx/e GGEna6Jo1Z9+b29yf6bR5izWLWcBHTXjvn6i2EIulqKGFRCFmPDBWmuw8YqeyG2a eT/sxVILKZby0Dj11Q1uxaUcln48WNIM5WPYWojaOelzYNNjJ1Kwa+klrlLOxbnM j92MSEBe7Nr2w4cukBg+0sIAdtcfRNx5Oov8yXC9VUA0tg4satAoYHdXn35eVJ3z ZEFo+94H3T0nlCwP+6TayXkTs1k1YICSaCZzp7HcbUdxCsIZQ0kyGknLVtTzydQc z3GEze35VPeqULeBntoaAb2Vpy76Hs5uBl1lkXv+wEGJuECdDld8IilvqtEzCZy5 vLRizqfXle1PQjlGG+eAqUG/7TPTvDmwuCyHEiCdSf1r3f8WLXevdP4WGyCB/yXy VYLmz/Rbga1wsFC4w19pe8FM2S6SSeODYqx6zEjiKYgbNjV/thQ= =oVWo -----END PGP SIGNATURE----- Merge tag 'ras_core_for_v5.18_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull RAS updates from Borislav Petkov: - More noinstr fixes - Add an erratum workaround for Intel CPUs which, in certain circumstances, end up consuming an unrelated uncorrectable memory error when using fast string copy insns - Remove the MCE tolerance level control as it is not really needed or used anymore * tag 'ras_core_for_v5.18_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/mce: Remove the tolerance level control x86/mce: Work around an erratum on fast string copy instructions x86/mce: Use arch atomic and bit helpers |
||
Juergen Gross
|
de2ae403b4 |
xen: fix is_xen_pmu()
is_xen_pmu() is taking the cpu number as parameter, but it is not using
it. Instead it just tests whether the Xen PMU initialization on the
current cpu did succeed. As this test is done by checking a percpu
pointer, preemption needs to be disabled in order to avoid switching
the cpu while doing the test. While resuming from suspend() this seems
not to be the case:
[ 88.082751] ACPI: PM: Low-level resume complete
[ 88.087933] ACPI: EC: EC started
[ 88.091464] ACPI: PM: Restoring platform NVS memory
[ 88.097166] xen_acpi_processor: Uploading Xen processor PM info
[ 88.103850] Enabling non-boot CPUs ...
[ 88.108128] installing Xen timer for CPU 1
[ 88.112763] BUG: using smp_processor_id() in preemptible [00000000] code: systemd-sleep/7138
[ 88.122256] caller is is_xen_pmu+0x12/0x30
[ 88.126937] CPU: 0 PID: 7138 Comm: systemd-sleep Tainted: G W 5.16.13-2.fc32.qubes.x86_64 #1
[ 88.137939] Hardware name: Star Labs StarBook/StarBook, BIOS 7.97 03/21/2022
[ 88.145930] Call Trace:
[ 88.148757] <TASK>
[ 88.151193] dump_stack_lvl+0x48/0x5e
[ 88.155381] check_preemption_disabled+0xde/0xe0
[ 88.160641] is_xen_pmu+0x12/0x30
[ 88.164441] xen_smp_intr_init_pv+0x75/0x100
Fix that by replacing is_xen_pmu() by a simple boolean variable which
reflects the Xen PMU initialization state on cpu 0.
Modify xen_pmu_init() to return early in case it is being called for a
cpu other than cpu 0 and the boolean variable not being set.
Fixes:
|
||
|
Linus Torvalds
|
1464677662 |
platform-drivers-x86 for v5.18-1
Highlights:
- new drivers:
- AMD Host System Management Port (HSMP)
- Intel Software Defined Silicon
- removed drivers (functionality folded into other drivers):
- intel_cht_int33fe_microb
- surface3_button
- amd-pmc:
- s2idle bug-fixes
- Support for AMD Spill to DRAM STB feature
- hp-wmi:
- Fix SW_TABLET_MODE detection method (and other fixes)
- Support omen thermal profile policy v1
- serial-multi-instantiate:
- Add SPI device support
- Add support for CS35L41 amplifiers used in new laptops
- think-lmi:
- syfs-class-firmware-attributes Certificate authentication support
- thinkpad_acpi:
- Fixes + quirks
- Add platform_profile support on AMD based ThinkPads
- x86-android-tablets
- Improve Asus ME176C / TF103C support
- Support Nextbook Ares 8, Lenovo Tab 2 830 and 1050 tablets
- Lots of various other small fixes and hardware-id additions
The following is an automated git shortlog grouped by driver:
ACPI / scan:
- Create platform device for CS35L41
ACPI / x86:
- Add support for LPS0 callback handler
ALSA:
- hda/realtek: Add support for HP Laptops
Add AMD system management interface:
- Add AMD system management interface
Add Intel Software Defined Silicon driver:
- Add Intel Software Defined Silicon driver
Documentation:
- syfs-class-firmware-attributes: Lenovo Certificate support
- Add x86/amd_hsmp driver
ISST:
- Fix possible circular locking dependency detected
Input:
- soc_button_array - add support for Microsoft Surface 3 (MSHW0028) buttons
Merge remote-tracking branch 'pdx86/platform-drivers-x86-pinctrl-pmu_clk' into review-hans-gcc12:
- Merge remote-tracking branch 'pdx86/platform-drivers-x86-pinctrl-pmu_clk' into review-hans-gcc12
Merge tag 'platform-drivers-x86-serial-multi-instantiate-1' into review-hans:
- Merge tag 'platform-drivers-x86-serial-multi-instantiate-1' into review-hans
Replace acpi_bus_get_device():
- Replace acpi_bus_get_device()
amd-pmc:
- Only report STB errors when STB enabled
- Drop CPU QoS workaround
- Output error codes in messages
- Move to later in the suspend process
- Validate entry into the deepest state on resume
- uninitialized variable in amd_pmc_s2d_init()
- Set QOS during suspend on CZN w/ timer wakeup
- Add support for AMD Spill to DRAM STB feature
- Correct usage of SMU version
- Make amd_pmc_stb_debugfs_fops static
asus-tf103c-dock:
- Make 2 global structs static
asus-wmi:
- Fix regression when probing for fan curve control
hp-wmi:
- support omen thermal profile policy v1
- Changing bios_args.data to be dynamically allocated
- Fix 0x05 error code reported by several WMI calls
- Fix SW_TABLET_MODE detection method
- Fix hp_wmi_read_int() reporting error (0x05)
huawei-wmi:
- check the return value of device_create_file()
i2c-multi-instantiate:
- Rename it for a generic serial driver name
int3472:
- Add terminator to gpiod_lookup_table
intel-uncore-freq:
- fix uncore_freq_common_init() error codes
intel_cht_int33fe:
- Move to intel directory
- Drop Lenovo Yogabook YB1-X9x code
- Switch to DMI modalias based loading
intel_crystal_cove_charger:
- Fix IRQ masking / unmasking
lg-laptop:
- Move setting of battery charge limit to common location
pinctrl:
- baytrail: Add pinconf group + function for the pmu_clk
platform/dcdbas:
- move EXPORT_SYMBOL after function
platform/surface:
- Remove Surface 3 Button driver
- surface3-wmi: Simplify resource management
- Replace acpi_bus_get_device()
- Reinstate platform dependency
platform/x86/intel-uncore-freq:
- Split common and enumeration part
platform/x86/intel/uncore-freq:
- Display uncore current frequency
- Use sysfs API to create attributes
- Move to uncore-frequency folder
selftests:
- sdsi: test sysfs setup
serial-multi-instantiate:
- Add SPI support
- Reorganize I2C functions
spi:
- Add API to count spi acpi resources
- Support selection of the index of the ACPI Spi Resource before alloc
- Create helper API to lookup ACPI info for spi device
- Make spi_alloc_device and spi_add_device public again
surface:
- surface3_power: Fix battery readings on batteries without a serial number
think-lmi:
- Certificate authentication support
thinkpad_acpi:
- consistently check fan_get_status return.
- Don't use test_bit on an integer
- Fix compiler warning about uninitialized err variable
- clean up dytc profile convert
- Add PSC mode support
- Add dual fan probe
- Add dual-fan quirk for T15g (2nd gen)
- Fix incorrect use of platform profile on AMD platforms
- Add quirk for ThinkPads without a fan
tools arch x86:
- Add Intel SDSi provisiong tool
touchscreen_dmi:
- Add info for the RWC NANOTE P8 AY07J 2-in-1
x86-android-tablets:
- Depend on EFI and SPI
- Lenovo Yoga Tablet 2 830/1050 sound support
- Workaround Lenovo Yoga Tablet 2 830/1050 poweroff hang
- Add Lenovo Yoga Tablet 2 830 / 1050 data
- Fix EBUSY error when requesting IOAPIC IRQs
- Minor charger / fuel-gauge improvements
- Add Nextbook Ares 8 data
- Add IRQ to Asus ME176C accelerometer info
- Add lid-switch gpio-keys pdev to Asus ME176C + TF103C
- Add x86_android_tablet_get_gpiod() helper
- Add Asus ME176C/TF103C charger and fuelgauge props
- Add battery swnode support
- Trivial typo fix for MODULE_AUTHOR
- Fix the buttons on CZC P10T tablet
- Constify the gpiod_lookup_tables arrays
- Add an init() callback to struct x86_dev_info
- Add support for disabling ACPI _AEI handlers
- Correct crystal_cove_charger module name
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Merge tag 'platform-drivers-x86-v5.18-1' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86
Pull x86 platform driver updates from Hans de Goede:
"New drivers:
- AMD Host System Management Port (HSMP)
- Intel Software Defined Silicon
Removed drivers (functionality folded into other drivers):
- intel_cht_int33fe_microb
- surface3_button
amd-pmc:
- s2idle bug-fixes
- Support for AMD Spill to DRAM STB feature
hp-wmi:
- Fix SW_TABLET_MODE detection method (and other fixes)
- Support omen thermal profile policy v1
serial-multi-instantiate:
- Add SPI device support
- Add support for CS35L41 amplifiers used in new laptops
think-lmi:
- syfs-class-firmware-attributes Certificate authentication support
thinkpad_acpi:
- Fixes + quirks
- Add platform_profile support on AMD based ThinkPads
x86-android-tablets:
- Improve Asus ME176C / TF103C support
- Support Nextbook Ares 8, Lenovo Tab 2 830 and 1050 tablets
Lots of various other small fixes and hardware-id additions"
* tag 'platform-drivers-x86-v5.18-1' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86: (60 commits)
platform/x86: think-lmi: Certificate authentication support
Documentation: syfs-class-firmware-attributes: Lenovo Certificate support
platform/x86: amd-pmc: Only report STB errors when STB enabled
platform/x86: amd-pmc: Drop CPU QoS workaround
platform/x86: amd-pmc: Output error codes in messages
platform/x86: amd-pmc: Move to later in the suspend process
ACPI / x86: Add support for LPS0 callback handler
platform/x86: thinkpad_acpi: consistently check fan_get_status return.
platform/x86: hp-wmi: support omen thermal profile policy v1
platform/x86: hp-wmi: Changing bios_args.data to be dynamically allocated
platform/x86: hp-wmi: Fix 0x05 error code reported by several WMI calls
platform/x86: hp-wmi: Fix SW_TABLET_MODE detection method
platform/x86: hp-wmi: Fix hp_wmi_read_int() reporting error (0x05)
platform/x86: amd-pmc: Validate entry into the deepest state on resume
platform/x86: thinkpad_acpi: Don't use test_bit on an integer
platform/x86: thinkpad_acpi: Fix compiler warning about uninitialized err variable
platform/x86: thinkpad_acpi: clean up dytc profile convert
platform/x86: x86-android-tablets: Depend on EFI and SPI
platform/x86: amd-pmc: uninitialized variable in amd_pmc_s2d_init()
platform/x86: intel-uncore-freq: fix uncore_freq_common_init() error codes
...
|
||
|
Linus Torvalds
|
29c8c18363 |
Merge branch 'akpm' (patches from Andrew)
Merge yet more updates from Andrew Morton: "This is the material which was staged after willystuff in linux-next. Subsystems affected by this patch series: mm (debug, selftests, pagecache, thp, rmap, migration, kasan, hugetlb, pagemap, madvise), and selftests" * emailed patches from Andrew Morton <akpm@linux-foundation.org>: (113 commits) selftests: kselftest framework: provide "finished" helper mm: madvise: MADV_DONTNEED_LOCKED mm: fix race between MADV_FREE reclaim and blkdev direct IO read mm: generalize ARCH_HAS_FILTER_PGPROT mm: unmap_mapping_range_tree() with i_mmap_rwsem shared mm: warn on deleting redirtied only if accounted mm/huge_memory: remove stale locking logic from __split_huge_pmd() mm/huge_memory: remove stale page_trans_huge_mapcount() mm/swapfile: remove stale reuse_swap_page() mm/khugepaged: remove reuse_swap_page() usage mm/huge_memory: streamline COW logic in do_huge_pmd_wp_page() mm: streamline COW logic in do_swap_page() mm: slightly clarify KSM logic in do_swap_page() mm: optimize do_wp_page() for fresh pages in local LRU pagevecs mm: optimize do_wp_page() for exclusive pages in the swapcache mm/huge_memory: make is_transparent_hugepage() static userfaultfd/selftests: enable hugetlb remap and remove event testing selftests/vm: add hugetlb madvise MADV_DONTNEED MADV_REMOVE test mm: enable MADV_DONTNEED for hugetlb mappings kasan: disable LOCKDEP when printing reports ... |
||
|
Peter Zijlstra
|
7ed7aa4de9 |
crypto: x86/poly1305 - Fixup SLS
Due to being a perl generated asm file, it got missed by the mass
convertion script.
arch/x86/crypto/poly1305-x86_64-cryptogams.o: warning: objtool: poly1305_init_x86_64()+0x3a: missing int3 after ret
arch/x86/crypto/poly1305-x86_64-cryptogams.o: warning: objtool: poly1305_blocks_x86_64()+0xf2: missing int3 after ret
arch/x86/crypto/poly1305-x86_64-cryptogams.o: warning: objtool: poly1305_emit_x86_64()+0x37: missing int3 after ret
arch/x86/crypto/poly1305-x86_64-cryptogams.o: warning: objtool: __poly1305_block()+0x6d: missing int3 after ret
arch/x86/crypto/poly1305-x86_64-cryptogams.o: warning: objtool: __poly1305_init_avx()+0x1e8: missing int3 after ret
arch/x86/crypto/poly1305-x86_64-cryptogams.o: warning: objtool: poly1305_blocks_avx()+0x18a: missing int3 after ret
arch/x86/crypto/poly1305-x86_64-cryptogams.o: warning: objtool: poly1305_blocks_avx()+0xaf8: missing int3 after ret
arch/x86/crypto/poly1305-x86_64-cryptogams.o: warning: objtool: poly1305_emit_avx()+0x99: missing int3 after ret
arch/x86/crypto/poly1305-x86_64-cryptogams.o: warning: objtool: poly1305_blocks_avx2()+0x18a: missing int3 after ret
arch/x86/crypto/poly1305-x86_64-cryptogams.o: warning: objtool: poly1305_blocks_avx2()+0x776: missing int3 after ret
arch/x86/crypto/poly1305-x86_64-cryptogams.o: warning: objtool: poly1305_blocks_avx512()+0x18a: missing int3 after ret
arch/x86/crypto/poly1305-x86_64-cryptogams.o: warning: objtool: poly1305_blocks_avx512()+0x796: missing int3 after ret
arch/x86/crypto/poly1305-x86_64-cryptogams.o: warning: objtool: poly1305_blocks_avx512()+0x10bd: missing int3 after ret
Fixes:
|
||
|
Peter Zijlstra
|
4327d16851 |
crypto: x86/chacha20 - Avoid spurious jumps to other functions
The chacha_Nblock_xor_avx512vl() functions all have their own,
identical, .LdoneN label, however in one particular spot {2,4} jump to
the 8 version instead of their own. Resulting in:
arch/x86/crypto/chacha-x86_64.o: warning: objtool: chacha_2block_xor_avx512vl() falls through to next function chacha_8block_xor_avx512vl()
arch/x86/crypto/chacha-x86_64.o: warning: objtool: chacha_4block_xor_avx512vl() falls through to next function chacha_8block_xor_avx512vl()
Make each function consistently use its own done label.
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Martin Willi <martin@strongswan.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
|
||
Anshuman Khandual
|
24e988c7fd |
mm: generalize ARCH_HAS_FILTER_PGPROT
ARCH_HAS_FILTER_PGPROT config has duplicate definitions on platforms that subscribe it. Instead make it a generic config option which can be selected on applicable platforms when required. Link: https://lkml.kernel.org/r/1643004823-16441-1-git-send-email-anshuman.khandual@arm.com Signed-off-by: Anshuman Khandual <anshuman.khandual@arm.com> Acked-by: Catalin Marinas <catalin.marinas@arm.com> Cc: Will Deacon <will@kernel.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Ingo Molnar <mingo@redhat.com> Cc: "H. Peter Anvin" <hpa@zytor.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
||
Andrey Konovalov
|
63840de296 |
kasan, x86, arm64, s390: rename functions for modules shadow
Rename kasan_free_shadow to kasan_free_module_shadow and kasan_module_alloc to kasan_alloc_module_shadow. These functions are used to allocate/free shadow memory for kernel modules when KASAN_VMALLOC is not enabled. The new names better reflect their purpose. Also reword the comment next to their declaration to improve clarity. Link: https://lkml.kernel.org/r/36db32bde765d5d0b856f77d2d806e838513fe84.1643047180.git.andreyknvl@google.com Signed-off-by: Andrey Konovalov <andreyknvl@google.com> Acked-by: Catalin Marinas <catalin.marinas@arm.com> Acked-by: Marco Elver <elver@google.com> Cc: Alexander Potapenko <glider@google.com> Cc: Andrey Ryabinin <ryabinin.a.a@gmail.com> Cc: Dmitry Vyukov <dvyukov@google.com> Cc: Evgenii Stepanov <eugenis@google.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Peter Collingbourne <pcc@google.com> Cc: Vincenzo Frascino <vincenzo.frascino@arm.com> Cc: Will Deacon <will@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
||
|
Anshuman Khandual
|
4cc79b3303 |
mm/migration: add trace events for base page and HugeTLB migrations
This adds two trace events for base page and HugeTLB page migrations. These events, closely follow the implementation details like setting and removing of PTE migration entries, which are essential operations for migration. The new CREATE_TRACE_POINTS in <mm/rmap.c> covers both <events/migration.h> and <events/tlb.h> based trace events. Hence drop redundant CREATE_TRACE_POINTS from other places which could have otherwise conflicted during build. Link: https://lkml.kernel.org/r/1643368182-9588-3-git-send-email-anshuman.khandual@arm.com Signed-off-by: Anshuman Khandual <anshuman.khandual@arm.com> Reported-by: kernel test robot <lkp@intel.com> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Ingo Molnar <mingo@redhat.com> Cc: Zi Yan <ziy@nvidia.com> Cc: Naoya Horiguchi <naoya.horiguchi@nec.com> Cc: John Hubbard <jhubbard@nvidia.com> Cc: Matthew Wilcox <willy@infradead.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
||
|
Linus Torvalds
|
b14ffae378 |
drm for 5.18-rc1
dma-buf: - rename dma-buf-map to iosys-map core: - move buddy allocator to core - add pci/platform init macros - improve EDID parser deep color handling - EDID timing type 7 support - add GPD Win Max quirk - add yes/no helpers to string_helpers - flatten syncobj chains - add nomodeset support to lots of drivers - improve fb-helper clipping support - add default property value interface fbdev: - improve fbdev ops speed ttm: - add a backpointer from ttm bo->ttm resource dp: - move displayport headers - add a dp helper module bridge: - anx7625 atomic support, HDCP support panel: - split out panel-lvds and lvds bindings - find panels in OF subnodes privacy: - add chromeos privacy screen support fb: - hot unplug fw fb on forced removal simpledrm: - request region instead of marking ioresource busy - add panel oreintation property udmabuf: - fix oops with 0 pages amdgpu: - power management code cleanup - Enable freesync video mode by default - RAS code cleanup - Improve VRAM access for debug using SDMA - SR-IOV rework special register access and fixes - profiling power state request ioctl - expose IP discovery via sysfs - Cyan skillfish updates - GC 10.3.7, SDMA 5.2.7, DCN 3.1.6 updates - expose benchmark tests via debugfs - add module param to disable XGMI for testing - GPU reset debugfs register dumping support amdkfd: - CRIU support - SDMA queue fixes radeon: - UVD suspend fix - iMac backlight fix i915: - minimal parallel submission for execlists - DG2-G12 subplatform added - DG2 programming workarounds - DG2 accelerated migration support - flat CCS and CCS engine support for XeHP - initial small BAR support - drop fake LMEM support - ADL-N PCH support - bigjoiner updates - introduce VMA resources and async unbinding - register definitions cleanups - multi-FBC refactoring - DG1 OPROM over SPI support - ADL-N platform enabling - opregion mailbox #5 support - DP MST ESI improvements - drm device based logging - async flip optimisation for DG2 - CPU arch abstraction fixes - improve GuC ADS init to work on aarch64 - tweak TTM LRU priority hint - GuC 69.0.3 support - remove short term execbuf pins nouveau: - higher DP/eDP bitrates - backlight fixes msm: - dpu + dp support for sc8180x - dp support for sm8350 - dpu + dsi support for qcm2290 - 10nm dsi phy tuning support - bridge support for dp encoder - gpu support for additional 7c3 SKUs ingenic: - HDMI support for JZ4780 - aux channel EDID support ast: - AST2600 support - add wide screen support - create DP/DVI connectors omapdrm: - fix implicit dma_buf fencing vc4: - add CSC + full range support - better display firmware handoff panfrost: - add initial dual-core GPU support stm: - new revision support - fb handover support mediatek: - transfer display binding document to yaml format. - add mt8195 display device binding. - allow commands to be sent during video mode. - add wait_for_event for crtc disable by cmdq. tegra: - YUV format support rcar-du: - LVDS support for M3-W+ (R8A77961) exynos: - BGR pixel format for FIMD device -----BEGIN PGP SIGNATURE----- iQIzBAABCAAdFiEEEKbZHaGwW9KfbeusDHTzWXnEhr4FAmI71h4ACgkQDHTzWXnE hr6wKg//SvKFiEOhptua8Ao8XYkhXpg1/tgdAs4D7bZ0YgJyF4Im0RuFOKMmF3mN 0Y8AwguqrsmrOAFbK8B1WEysB66DmGlZN/V2Q75X7fui8xs4uGF2Fcxyr+265zhf vONPwAoxYr+KXqwOI1p1BP2QEL6bJTdu+nrXRsXIBIrWnw8ehXJlw3fDhgvG5QBn RPdbU7lQnd47hdYxkbe5SiZvWnPC46dJmpqsRJir0xjskR6juU36f34C4IKhTGwO NDPeWVgusVXtIC/F4X6RebCWG0f66h+CUFa9zeYIleI/2/5yZWXfcw6Obx8HgPkt gieiI0R4TpkVxeHCApCQ5UpxWgfSOXdoDoyw172bKQw7JCHVEkSwenyMEEwNet6r SCJrRmlB1PBI/iTWmhm9qgrU46ZZyAnQoTlCsXGzJncdP3hzGlA1embl00yfEl7f wzM35N20qd5T4VKUEF8QYF0fLZYmKw4cWVASu4hQ3qmGal6frilphz2J8JK8hQNq KhFqNbVTnZsQNr9LBCbrf0kOPaMzpmW+2vQG9ApdAb1N3gNPZT7ctti0Xq5N2OUR AipWFAsDPS2NPADKmBtDU55PgFH9MqUIsoHHXLV4Qi76dvCqYoN68qRQxrL7rpSu b0gr0YKU2QcIB/uytjOPHcgtI5Xvrh+q8JPz/dJ38/Esgjmk4wo= =uRsT -----END PGP SIGNATURE----- Merge tag 'drm-next-2022-03-24' of git://anongit.freedesktop.org/drm/drm Pull drm updates from Dave Airlie: "Lots of work all over, Intel improving DG2 support, amdkfd CRIU support, msm new hw support, and faster fbdev support. dma-buf: - rename dma-buf-map to iosys-map core: - move buddy allocator to core - add pci/platform init macros - improve EDID parser deep color handling - EDID timing type 7 support - add GPD Win Max quirk - add yes/no helpers to string_helpers - flatten syncobj chains - add nomodeset support to lots of drivers - improve fb-helper clipping support - add default property value interface fbdev: - improve fbdev ops speed ttm: - add a backpointer from ttm bo->ttm resource dp: - move displayport headers - add a dp helper module bridge: - anx7625 atomic support, HDCP support panel: - split out panel-lvds and lvds bindings - find panels in OF subnodes privacy: - add chromeos privacy screen support fb: - hot unplug fw fb on forced removal simpledrm: - request region instead of marking ioresource busy - add panel oreintation property udmabuf: - fix oops with 0 pages amdgpu: - power management code cleanup - Enable freesync video mode by default - RAS code cleanup - Improve VRAM access for debug using SDMA - SR-IOV rework special register access and fixes - profiling power state request ioctl - expose IP discovery via sysfs - Cyan skillfish updates - GC 10.3.7, SDMA 5.2.7, DCN 3.1.6 updates - expose benchmark tests via debugfs - add module param to disable XGMI for testing - GPU reset debugfs register dumping support amdkfd: - CRIU support - SDMA queue fixes radeon: - UVD suspend fix - iMac backlight fix i915: - minimal parallel submission for execlists - DG2-G12 subplatform added - DG2 programming workarounds - DG2 accelerated migration support - flat CCS and CCS engine support for XeHP - initial small BAR support - drop fake LMEM support - ADL-N PCH support - bigjoiner updates - introduce VMA resources and async unbinding - register definitions cleanups - multi-FBC refactoring - DG1 OPROM over SPI support - ADL-N platform enabling - opregion mailbox #5 support - DP MST ESI improvements - drm device based logging - async flip optimisation for DG2 - CPU arch abstraction fixes - improve GuC ADS init to work on aarch64 - tweak TTM LRU priority hint - GuC 69.0.3 support - remove short term execbuf pins nouveau: - higher DP/eDP bitrates - backlight fixes msm: - dpu + dp support for sc8180x - dp support for sm8350 - dpu + dsi support for qcm2290 - 10nm dsi phy tuning support - bridge support for dp encoder - gpu support for additional 7c3 SKUs ingenic: - HDMI support for JZ4780 - aux channel EDID support ast: - AST2600 support - add wide screen support - create DP/DVI connectors omapdrm: - fix implicit dma_buf fencing vc4: - add CSC + full range support - better display firmware handoff panfrost: - add initial dual-core GPU support stm: - new revision support - fb handover support mediatek: - transfer display binding document to yaml format. - add mt8195 display device binding. - allow commands to be sent during video mode. - add wait_for_event for crtc disable by cmdq. tegra: - YUV format support rcar-du: - LVDS support for M3-W+ (R8A77961) exynos: - BGR pixel format for FIMD device" * tag 'drm-next-2022-03-24' of git://anongit.freedesktop.org/drm/drm: (1529 commits) drm/i915/display: Do not re-enable PSR after it was marked as not reliable drm/i915/display: Fix HPD short pulse handling for eDP drm/amdgpu: Use drm_mode_copy() drm/radeon: Use drm_mode_copy() drm/amdgpu: Use ternary operator in `vcn_v1_0_start()` drm/amdgpu: Remove pointless on stack mode copies drm/amd/pm: fix indenting in __smu_cmn_reg_print_error() drm/amdgpu/dc: fix typos in comments drm/amdgpu: fix typos in comments drm/amd/pm: fix typos in comments drm/amdgpu: Add stolen reserved memory for MI25 SRIOV. drm/amdgpu: Merge get_reserved_allocation to get_vbios_allocations. drm/amdkfd: evict svm bo worker handle error drm/amdgpu/vcn: fix vcn ring test failure in igt reload test drm/amdgpu: only allow secure submission on rings which support that drm/amdgpu: fixed the warnings reported by kernel test robot drm/amd/display: 3.2.177 drm/amd/display: [FW Promotion] Release 0.0.108.0 drm/amd/display: Add save/restore PANEL_PWRSEQ_REF_DIV2 drm/amd/display: Wait for hubp read line for Pollock ... |
||
|
Linus Torvalds
|
52deda9551 |
Merge branch 'akpm' (patches from Andrew)
Merge more updates from Andrew Morton: "Various misc subsystems, before getting into the post-linux-next material. 41 patches. Subsystems affected by this patch series: procfs, misc, core-kernel, lib, checkpatch, init, pipe, minix, fat, cgroups, kexec, kdump, taskstats, panic, kcov, resource, and ubsan" * emailed patches from Andrew Morton <akpm@linux-foundation.org>: (41 commits) Revert "ubsan, kcsan: Don't combine sanitizer with kcov on clang" kernel/resource: fix kfree() of bootmem memory again kcov: properly handle subsequent mmap calls kcov: split ioctl handling into locked and unlocked parts panic: move panic_print before kmsg dumpers panic: add option to dump all CPUs backtraces in panic_print docs: sysctl/kernel: add missing bit to panic_print taskstats: remove unneeded dead assignment kasan: no need to unset panic_on_warn in end_report() ubsan: no need to unset panic_on_warn in ubsan_epilogue() panic: unset panic_on_warn inside panic() docs: kdump: add scp example to write out the dump file docs: kdump: update description about sysfs file system support arm64: mm: use IS_ENABLED(CONFIG_KEXEC_CORE) instead of #ifdef x86/setup: use IS_ENABLED(CONFIG_KEXEC_CORE) instead of #ifdef riscv: mm: init: use IS_ENABLED(CONFIG_KEXEC_CORE) instead of #ifdef kexec: make crashk_res, crashk_low_res and crash_notes symbols always visible cgroup: use irqsave in cgroup_rstat_flush_locked(). fat: use pointer to simple type in put_user() minix: fix bug when opening a file with O_DIRECT ... |
||
|
Linus Torvalds
|
169e77764a |
Networking changes for 5.18.
Core
----
- Introduce XDP multi-buffer support, allowing the use of XDP with
jumbo frame MTUs and combination with Rx coalescing offloads (LRO).
- Speed up netns dismantling (5x) and lower the memory cost a little.
Remove unnecessary per-netns sockets. Scope some lists to a netns.
Cut down RCU syncing. Use batch methods. Allow netdev registration
to complete out of order.
- Support distinguishing timestamp types (ingress vs egress) and
maintaining them across packet scrubbing points (e.g. redirect).
- Continue the work of annotating packet drop reasons throughout
the stack.
- Switch netdev error counters from an atomic to dynamically
allocated per-CPU counters.
- Rework a few preempt_disable(), local_irq_save() and busy waiting
sections problematic on PREEMPT_RT.
- Extend the ref_tracker to allow catching use-after-free bugs.
BPF
---
- Introduce "packing allocator" for BPF JIT images. JITed code is
marked read only, and used to be allocated at page granularity.
Custom allocator allows for more efficient memory use, lower
iTLB pressure and prevents identity mapping huge pages from
getting split.
- Make use of BTF type annotations (e.g. __user, __percpu) to enforce
the correct probe read access method, add appropriate helpers.
- Convert the BPF preload to use light skeleton and drop
the user-mode-driver dependency.
- Allow XDP BPF_PROG_RUN test infra to send real packets, enabling
its use as a packet generator.
- Allow local storage memory to be allocated with GFP_KERNEL if called
from a hook allowed to sleep.
- Introduce fprobe (multi kprobe) to speed up mass attachment (arch
bits to come later).
- Add unstable conntrack lookup helpers for BPF by using the BPF
kfunc infra.
- Allow cgroup BPF progs to return custom errors to user space.
- Add support for AF_UNIX iterator batching.
- Allow iterator programs to use sleepable helpers.
- Support JIT of add, and, or, xor and xchg atomic ops on arm64.
- Add BTFGen support to bpftool which allows to use CO-RE in kernels
without BTF info.
- Large number of libbpf API improvements, cleanups and deprecations.
Protocols
---------
- Micro-optimize UDPv6 Tx, gaining up to 5% in test on dummy netdev.
- Adjust TSO packet sizes based on min_rtt, allowing very low latency
links (data centers) to always send full-sized TSO super-frames.
- Make IPv6 flow label changes (AKA hash rethink) more configurable,
via sysctl and setsockopt. Distinguish between server and client
behavior.
- VxLAN support to "collect metadata" devices to terminate only
configured VNIs. This is similar to VLAN filtering in the bridge.
- Support inserting IPv6 IOAM information to a fraction of frames.
- Add protocol attribute to IP addresses to allow identifying where
given address comes from (kernel-generated, DHCP etc.)
- Support setting socket and IPv6 options via cmsg on ping6 sockets.
- Reject mis-use of ECN bits in IP headers as part of DSCP/TOS.
Define dscp_t and stop taking ECN bits into account in fib-rules.
- Add support for locked bridge ports (for 802.1X).
- tun: support NAPI for packets received from batched XDP buffs,
doubling the performance in some scenarios.
- IPv6 extension header handling in Open vSwitch.
- Support IPv6 control message load balancing in bonding, prevent
neighbor solicitation and advertisement from using the wrong port.
Support NS/NA monitor selection similar to existing ARP monitor.
- SMC
- improve performance with TCP_CORK and sendfile()
- support auto-corking
- support TCP_NODELAY
- MCTP (Management Component Transport Protocol)
- add user space tag control interface
- I2C binding driver (as specified by DMTF DSP0237)
- Multi-BSSID beacon handling in AP mode for WiFi.
- Bluetooth:
- handle MSFT Monitor Device Event
- add MGMT Adv Monitor Device Found/Lost events
- Multi-Path TCP:
- add support for the SO_SNDTIMEO socket option
- lots of selftest cleanups and improvements
- Increase the max PDU size in CAN ISOTP to 64 kB.
Driver API
----------
- Add HW counters for SW netdevs, a mechanism for devices which
offload packet forwarding to report packet statistics back to
software interfaces such as tunnels.
- Select the default NIC queue count as a fraction of number of
physical CPU cores, instead of hard-coding to 8.
- Expose devlink instance locks to drivers. Allow device layer of
drivers to use that lock directly instead of creating their own
which always runs into ordering issues in devlink callbacks.
- Add header/data split indication to guide user space enabling
of TCP zero-copy Rx.
- Allow configuring completion queue event size.
- Refactor page_pool to enable fragmenting after allocation.
- Add allocation and page reuse statistics to page_pool.
- Improve Multiple Spanning Trees support in the bridge to allow
reuse of topologies across VLANs, saving HW resources in switches.
- DSA (Distributed Switch Architecture):
- replay and offload of host VLAN entries
- offload of static and local FDB entries on LAG interfaces
- FDB isolation and unicast filtering
New hardware / drivers
----------------------
- Ethernet:
- LAN937x T1 PHYs
- Davicom DM9051 SPI NIC driver
- Realtek RTL8367S, RTL8367RB-VB switch and MDIO
- Microchip ksz8563 switches
- Netronome NFP3800 SmartNICs
- Fungible SmartNICs
- MediaTek MT8195 switches
- WiFi:
- mt76: MediaTek mt7916
- mt76: MediaTek mt7921u USB adapters
- brcmfmac: Broadcom BCM43454/6
- Mobile:
- iosm: Intel M.2 7360 WWAN card
Drivers
-------
- Convert many drivers to the new phylink API built for split PCS
designs but also simplifying other cases.
- Intel Ethernet NICs:
- add TTY for GNSS module for E810T device
- improve AF_XDP performance
- GTP-C and GTP-U filter offload
- QinQ VLAN support
- Mellanox Ethernet NICs (mlx5):
- support xdp->data_meta
- multi-buffer XDP
- offload tc push_eth and pop_eth actions
- Netronome Ethernet NICs (nfp):
- flow-independent tc action hardware offload (police / meter)
- AF_XDP
- Other Ethernet NICs:
- at803x: fiber and SFP support
- xgmac: mdio: preamble suppression and custom MDC frequencies
- r8169: enable ASPM L1.2 if system vendor flags it as safe
- macb/gem: ZynqMP SGMII
- hns3: add TX push mode
- dpaa2-eth: software TSO
- lan743x: multi-queue, mdio, SGMII, PTP
- axienet: NAPI and GRO support
- Mellanox Ethernet switches (mlxsw):
- source and dest IP address rewrites
- RJ45 ports
- Marvell Ethernet switches (prestera):
- basic routing offload
- multi-chain TC ACL offload
- NXP embedded Ethernet switches (ocelot & felix):
- PTP over UDP with the ocelot-8021q DSA tagging protocol
- basic QoS classification on Felix DSA switch using dcbnl
- port mirroring for ocelot switches
- Microchip high-speed industrial Ethernet (sparx5):
- offloading of bridge port flooding flags
- PTP Hardware Clock
- Other embedded switches:
- lan966x: PTP Hardward Clock
- qca8k: mdio read/write operations via crafted Ethernet packets
- Qualcomm 802.11ax WiFi (ath11k):
- add LDPC FEC type and 802.11ax High Efficiency data in radiotap
- enable RX PPDU stats in monitor co-exist mode
- Intel WiFi (iwlwifi):
- UHB TAS enablement via BIOS
- band disablement via BIOS
- channel switch offload
- 32 Rx AMPDU sessions in newer devices
- MediaTek WiFi (mt76):
- background radar detection
- thermal management improvements on mt7915
- SAR support for more mt76 platforms
- MBSSID and 6 GHz band on mt7915
- RealTek WiFi:
- rtw89: AP mode
- rtw89: 160 MHz channels and 6 GHz band
- rtw89: hardware scan
- Bluetooth:
- mt7921s: wake on Bluetooth, SCO over I2S, wide-band-speed (WBS)
- Microchip CAN (mcp251xfd):
- multiple RX-FIFOs and runtime configurable RX/TX rings
- internal PLL, runtime PM handling simplification
- improve chip detection and error handling after wakeup
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Merge tag 'net-next-5.18' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next
Pull networking updates from Jakub Kicinski:
"The sprinkling of SPI drivers is because we added a new one and Mark
sent us a SPI driver interface conversion pull request.
Core
----
- Introduce XDP multi-buffer support, allowing the use of XDP with
jumbo frame MTUs and combination with Rx coalescing offloads (LRO).
- Speed up netns dismantling (5x) and lower the memory cost a little.
Remove unnecessary per-netns sockets. Scope some lists to a netns.
Cut down RCU syncing. Use batch methods. Allow netdev registration
to complete out of order.
- Support distinguishing timestamp types (ingress vs egress) and
maintaining them across packet scrubbing points (e.g. redirect).
- Continue the work of annotating packet drop reasons throughout the
stack.
- Switch netdev error counters from an atomic to dynamically
allocated per-CPU counters.
- Rework a few preempt_disable(), local_irq_save() and busy waiting
sections problematic on PREEMPT_RT.
- Extend the ref_tracker to allow catching use-after-free bugs.
BPF
---
- Introduce "packing allocator" for BPF JIT images. JITed code is
marked read only, and used to be allocated at page granularity.
Custom allocator allows for more efficient memory use, lower iTLB
pressure and prevents identity mapping huge pages from getting
split.
- Make use of BTF type annotations (e.g. __user, __percpu) to enforce
the correct probe read access method, add appropriate helpers.
- Convert the BPF preload to use light skeleton and drop the
user-mode-driver dependency.
- Allow XDP BPF_PROG_RUN test infra to send real packets, enabling
its use as a packet generator.
- Allow local storage memory to be allocated with GFP_KERNEL if
called from a hook allowed to sleep.
- Introduce fprobe (multi kprobe) to speed up mass attachment (arch
bits to come later).
- Add unstable conntrack lookup helpers for BPF by using the BPF
kfunc infra.
- Allow cgroup BPF progs to return custom errors to user space.
- Add support for AF_UNIX iterator batching.
- Allow iterator programs to use sleepable helpers.
- Support JIT of add, and, or, xor and xchg atomic ops on arm64.
- Add BTFGen support to bpftool which allows to use CO-RE in kernels
without BTF info.
- Large number of libbpf API improvements, cleanups and deprecations.
Protocols
---------
- Micro-optimize UDPv6 Tx, gaining up to 5% in test on dummy netdev.
- Adjust TSO packet sizes based on min_rtt, allowing very low latency
links (data centers) to always send full-sized TSO super-frames.
- Make IPv6 flow label changes (AKA hash rethink) more configurable,
via sysctl and setsockopt. Distinguish between server and client
behavior.
- VxLAN support to "collect metadata" devices to terminate only
configured VNIs. This is similar to VLAN filtering in the bridge.
- Support inserting IPv6 IOAM information to a fraction of frames.
- Add protocol attribute to IP addresses to allow identifying where
given address comes from (kernel-generated, DHCP etc.)
- Support setting socket and IPv6 options via cmsg on ping6 sockets.
- Reject mis-use of ECN bits in IP headers as part of DSCP/TOS.
Define dscp_t and stop taking ECN bits into account in fib-rules.
- Add support for locked bridge ports (for 802.1X).
- tun: support NAPI for packets received from batched XDP buffs,
doubling the performance in some scenarios.
- IPv6 extension header handling in Open vSwitch.
- Support IPv6 control message load balancing in bonding, prevent
neighbor solicitation and advertisement from using the wrong port.
Support NS/NA monitor selection similar to existing ARP monitor.
- SMC
- improve performance with TCP_CORK and sendfile()
- support auto-corking
- support TCP_NODELAY
- MCTP (Management Component Transport Protocol)
- add user space tag control interface
- I2C binding driver (as specified by DMTF DSP0237)
- Multi-BSSID beacon handling in AP mode for WiFi.
- Bluetooth:
- handle MSFT Monitor Device Event
- add MGMT Adv Monitor Device Found/Lost events
- Multi-Path TCP:
- add support for the SO_SNDTIMEO socket option
- lots of selftest cleanups and improvements
- Increase the max PDU size in CAN ISOTP to 64 kB.
Driver API
----------
- Add HW counters for SW netdevs, a mechanism for devices which
offload packet forwarding to report packet statistics back to
software interfaces such as tunnels.
- Select the default NIC queue count as a fraction of number of
physical CPU cores, instead of hard-coding to 8.
- Expose devlink instance locks to drivers. Allow device layer of
drivers to use that lock directly instead of creating their own
which always runs into ordering issues in devlink callbacks.
- Add header/data split indication to guide user space enabling of
TCP zero-copy Rx.
- Allow configuring completion queue event size.
- Refactor page_pool to enable fragmenting after allocation.
- Add allocation and page reuse statistics to page_pool.
- Improve Multiple Spanning Trees support in the bridge to allow
reuse of topologies across VLANs, saving HW resources in switches.
- DSA (Distributed Switch Architecture):
- replay and offload of host VLAN entries
- offload of static and local FDB entries on LAG interfaces
- FDB isolation and unicast filtering
New hardware / drivers
----------------------
- Ethernet:
- LAN937x T1 PHYs
- Davicom DM9051 SPI NIC driver
- Realtek RTL8367S, RTL8367RB-VB switch and MDIO
- Microchip ksz8563 switches
- Netronome NFP3800 SmartNICs
- Fungible SmartNICs
- MediaTek MT8195 switches
- WiFi:
- mt76: MediaTek mt7916
- mt76: MediaTek mt7921u USB adapters
- brcmfmac: Broadcom BCM43454/6
- Mobile:
- iosm: Intel M.2 7360 WWAN card
Drivers
-------
- Convert many drivers to the new phylink API built for split PCS
designs but also simplifying other cases.
- Intel Ethernet NICs:
- add TTY for GNSS module for E810T device
- improve AF_XDP performance
- GTP-C and GTP-U filter offload
- QinQ VLAN support
- Mellanox Ethernet NICs (mlx5):
- support xdp->data_meta
- multi-buffer XDP
- offload tc push_eth and pop_eth actions
- Netronome Ethernet NICs (nfp):
- flow-independent tc action hardware offload (police / meter)
- AF_XDP
- Other Ethernet NICs:
- at803x: fiber and SFP support
- xgmac: mdio: preamble suppression and custom MDC frequencies
- r8169: enable ASPM L1.2 if system vendor flags it as safe
- macb/gem: ZynqMP SGMII
- hns3: add TX push mode
- dpaa2-eth: software TSO
- lan743x: multi-queue, mdio, SGMII, PTP
- axienet: NAPI and GRO support
- Mellanox Ethernet switches (mlxsw):
- source and dest IP address rewrites
- RJ45 ports
- Marvell Ethernet switches (prestera):
- basic routing offload
- multi-chain TC ACL offload
- NXP embedded Ethernet switches (ocelot & felix):
- PTP over UDP with the ocelot-8021q DSA tagging protocol
- basic QoS classification on Felix DSA switch using dcbnl
- port mirroring for ocelot switches
- Microchip high-speed industrial Ethernet (sparx5):
- offloading of bridge port flooding flags
- PTP Hardware Clock
- Other embedded switches:
- lan966x: PTP Hardward Clock
- qca8k: mdio read/write operations via crafted Ethernet packets
- Qualcomm 802.11ax WiFi (ath11k):
- add LDPC FEC type and 802.11ax High Efficiency data in radiotap
- enable RX PPDU stats in monitor co-exist mode
- Intel WiFi (iwlwifi):
- UHB TAS enablement via BIOS
- band disablement via BIOS
- channel switch offload
- 32 Rx AMPDU sessions in newer devices
- MediaTek WiFi (mt76):
- background radar detection
- thermal management improvements on mt7915
- SAR support for more mt76 platforms
- MBSSID and 6 GHz band on mt7915
- RealTek WiFi:
- rtw89: AP mode
- rtw89: 160 MHz channels and 6 GHz band
- rtw89: hardware scan
- Bluetooth:
- mt7921s: wake on Bluetooth, SCO over I2S, wide-band-speed (WBS)
- Microchip CAN (mcp251xfd):
- multiple RX-FIFOs and runtime configurable RX/TX rings
- internal PLL, runtime PM handling simplification
- improve chip detection and error handling after wakeup"
* tag 'net-next-5.18' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (2521 commits)
llc: fix netdevice reference leaks in llc_ui_bind()
drivers: ethernet: cpsw: fix panic when interrupt coaleceing is set via ethtool
ice: don't allow to run ice_send_event_to_aux() in atomic ctx
ice: fix 'scheduling while atomic' on aux critical err interrupt
net/sched: fix incorrect vlan_push_eth dest field
net: bridge: mst: Restrict info size queries to bridge ports
net: marvell: prestera: add missing destroy_workqueue() in prestera_module_init()
drivers: net: xgene: Fix regression in CRC stripping
net: geneve: add missing netlink policy and size for IFLA_GENEVE_INNER_PROTO_INHERIT
net: dsa: fix missing host-filtered multicast addresses
net/mlx5e: Fix build warning, detected write beyond size of field
iwlwifi: mvm: Don't fail if PPAG isn't supported
selftests/bpf: Fix kprobe_multi test.
Revert "rethook: x86: Add rethook x86 implementation"
Revert "arm64: rethook: Add arm64 rethook implementation"
Revert "powerpc: Add rethook support"
Revert "ARM: rethook: Add rethook arm implementation"
netdevice: add missing dm_private kdoc
net: bridge: mst: prevent NULL deref in br_mst_info_size()
selftests: forwarding: Use same VRF for port and VLAN upper
...
|
||
|
Linus Torvalds
|
66711cfea6 |
hyperv-next for 5.18
-----BEGIN PGP SIGNATURE----- iQFHBAABCAAxFiEEIbPD0id6easf0xsudhRwX5BBoF4FAmI6MhgTHHdlaS5saXVA a2VybmVsLm9yZwAKCRB2FHBfkEGgXiBkB/9FEaebcytvBMNVnz/fprfQWfYxdrUB wmDB9dnJVPX6UcWg6DuDv7KqatimDp7JrnKrNsrqlgF6Wafn/wI3Cdf8ZUi8CgtZ Walq8m2QM9j8WCm4EtgmluzGkHjAn6llmjE7XoLmo/A8MYp0FZhJzghKfCEu54EB 9DhgqQX+zzy7n32CxoAWrGrHegnGeqMpj3rhQ4qVuNn+bOzZ/wTyJQPmXTu4hSW1 0PrXRnfzqnODkB6QDUantABZM5bh1VsqwIlENp+xAFQVsQpsc35lW7AUg7JXczVn ES0+UHG7wVWPJCtIfD4FgIFT1xekPKxRYX9U66LMRbWGYhXfohQX+wFt =u62V -----END PGP SIGNATURE----- Merge tag 'hyperv-next-signed-20220322' of git://git.kernel.org/pub/scm/linux/kernel/git/hyperv/linux Pull hyperv updates from Wei Liu: "Minor patches from various people" * tag 'hyperv-next-signed-20220322' of git://git.kernel.org/pub/scm/linux/kernel/git/hyperv/linux: x86/hyperv: Output host build info as normal Windows version number hv_balloon: rate-limit "Unhandled message" warning drivers: hv: log when enabling crash_kexec_post_notifiers hv_utils: Add comment about max VMbus packet size in VSS driver Drivers: hv: Compare cpumasks and not their weights in init_vp_index() Drivers: hv: Rename 'alloced' to 'allocated' Drivers: hv: vmbus: Use struct_size() helper in kmalloc() |
||
|
Linus Torvalds
|
1ebdbeb03e |
ARM:
- Proper emulation of the OSLock feature of the debug architecture
- Scalibility improvements for the MMU lock when dirty logging is on
- New VMID allocator, which will eventually help with SVA in VMs
- Better support for PMUs in heterogenous systems
- PSCI 1.1 support, enabling support for SYSTEM_RESET2
- Implement CONFIG_DEBUG_LIST at EL2
- Make CONFIG_ARM64_ERRATUM_2077057 default y
- Reduce the overhead of VM exit when no interrupt is pending
- Remove traces of 32bit ARM host support from the documentation
- Updated vgic selftests
- Various cleanups, doc updates and spelling fixes
RISC-V:
- Prevent KVM_COMPAT from being selected
- Optimize __kvm_riscv_switch_to() implementation
- RISC-V SBI v0.3 support
s390:
- memop selftest
- fix SCK locking
- adapter interruptions virtualization for secure guests
- add Claudio Imbrenda as maintainer
- first step to do proper storage key checking
x86:
- Continue switching kvm_x86_ops to static_call(); introduce
static_call_cond() and __static_call_ret0 when applicable.
- Cleanup unused arguments in several functions
- Synthesize AMD 0x80000021 leaf
- Fixes and optimization for Hyper-V sparse-bank hypercalls
- Implement Hyper-V's enlightened MSR bitmap for nested SVM
- Remove MMU auditing
- Eager splitting of page tables (new aka "TDP" MMU only) when dirty
page tracking is enabled
- Cleanup the implementation of the guest PGD cache
- Preparation for the implementation of Intel IPI virtualization
- Fix some segment descriptor checks in the emulator
- Allow AMD AVIC support on systems with physical APIC ID above 255
- Better API to disable virtualization quirks
- Fixes and optimizations for the zapping of page tables:
- Zap roots in two passes, avoiding RCU read-side critical sections
that last too long for very large guests backed by 4 KiB SPTEs.
- Zap invalid and defunct roots asynchronously via concurrency-managed
work queue.
- Allowing yielding when zapping TDP MMU roots in response to the root's
last reference being put.
- Batch more TLB flushes with an RCU trick. Whoever frees the paging
structure now holds RCU as a proxy for all vCPUs running in the guest,
i.e. to prolongs the grace period on their behalf. It then kicks the
the vCPUs out of guest mode before doing rcu_read_unlock().
Generic:
- Introduce __vcalloc and use it for very large allocations that
need memcg accounting
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm
Pull kvm updates from Paolo Bonzini:
"ARM:
- Proper emulation of the OSLock feature of the debug architecture
- Scalibility improvements for the MMU lock when dirty logging is on
- New VMID allocator, which will eventually help with SVA in VMs
- Better support for PMUs in heterogenous systems
- PSCI 1.1 support, enabling support for SYSTEM_RESET2
- Implement CONFIG_DEBUG_LIST at EL2
- Make CONFIG_ARM64_ERRATUM_2077057 default y
- Reduce the overhead of VM exit when no interrupt is pending
- Remove traces of 32bit ARM host support from the documentation
- Updated vgic selftests
- Various cleanups, doc updates and spelling fixes
RISC-V:
- Prevent KVM_COMPAT from being selected
- Optimize __kvm_riscv_switch_to() implementation
- RISC-V SBI v0.3 support
s390:
- memop selftest
- fix SCK locking
- adapter interruptions virtualization for secure guests
- add Claudio Imbrenda as maintainer
- first step to do proper storage key checking
x86:
- Continue switching kvm_x86_ops to static_call(); introduce
static_call_cond() and __static_call_ret0 when applicable.
- Cleanup unused arguments in several functions
- Synthesize AMD 0x80000021 leaf
- Fixes and optimization for Hyper-V sparse-bank hypercalls
- Implement Hyper-V's enlightened MSR bitmap for nested SVM
- Remove MMU auditing
- Eager splitting of page tables (new aka "TDP" MMU only) when dirty
page tracking is enabled
- Cleanup the implementation of the guest PGD cache
- Preparation for the implementation of Intel IPI virtualization
- Fix some segment descriptor checks in the emulator
- Allow AMD AVIC support on systems with physical APIC ID above 255
- Better API to disable virtualization quirks
- Fixes and optimizations for the zapping of page tables:
- Zap roots in two passes, avoiding RCU read-side critical
sections that last too long for very large guests backed by 4
KiB SPTEs.
- Zap invalid and defunct roots asynchronously via
concurrency-managed work queue.
- Allowing yielding when zapping TDP MMU roots in response to the
root's last reference being put.
- Batch more TLB flushes with an RCU trick. Whoever frees the
paging structure now holds RCU as a proxy for all vCPUs running
in the guest, i.e. to prolongs the grace period on their behalf.
It then kicks the the vCPUs out of guest mode before doing
rcu_read_unlock().
Generic:
- Introduce __vcalloc and use it for very large allocations that need
memcg accounting"
* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (246 commits)
KVM: use kvcalloc for array allocations
KVM: x86: Introduce KVM_CAP_DISABLE_QUIRKS2
kvm: x86: Require const tsc for RT
KVM: x86: synthesize CPUID leaf 0x80000021h if useful
KVM: x86: add support for CPUID leaf 0x80000021
KVM: x86: do not use KVM_X86_OP_OPTIONAL_RET0 for get_mt_mask
Revert "KVM: x86/mmu: Zap only TDP MMU leafs in kvm_zap_gfn_range()"
kvm: x86/mmu: Flush TLB before zap_gfn_range releases RCU
KVM: arm64: fix typos in comments
KVM: arm64: Generalise VM features into a set of flags
KVM: s390: selftests: Add error memop tests
KVM: s390: selftests: Add more copy memop tests
KVM: s390: selftests: Add named stages for memop test
KVM: s390: selftests: Add macro as abstraction for MEM_OP
KVM: s390: selftests: Split memop tests
KVM: s390x: fix SCK locking
RISC-V: KVM: Implement SBI HSM suspend call
RISC-V: KVM: Add common kvm_riscv_vcpu_wfi() function
RISC-V: Add SBI HSM suspend related defines
RISC-V: KVM: Implement SBI v0.3 SRST extension
...
|
||
|
Linus Torvalds
|
3ce62cf4dc |
flexible-array transformations for 5.18-rc1
Hi Linus, Please, pull the following treewide patch that replaces zero-length arrays with flexible-array members. This patch has been baking in linux-next for a whole development cycle. Thanks -- Gustavo -----BEGIN PGP SIGNATURE----- iQIzBAABCAAdFiEEkmRahXBSurMIg1YvRwW0y0cG2zEFAmI6GIUACgkQRwW0y0cG 2zFLWw/+OB1gZeQD3boKpUMntWnn6wjhUxdrO8CYkpzG+B+8TFECXNjy8HV1CSiw GKKRndYELOyYaD5o/F2vtPe10iPHbrdIlMFRPBRoht0/cvSZgzHlfT8EjWQwerYY dieztUFKjeSj0MXivdNDnKOTm8o9cz8KmCrWFP+My37Fasn/9+nBX8iNVIvAX4xy T+IVmjtDifQUsTs298UGnBvDeuZOiGHhXXU5rq6lIX0Rl554OsWZW94d6jUPj/h7 t1v6jdojNuyaMKn45/xnPj9VvmDiSu3K67m3fjRdzLPDOhISjr2fw4KEUOKdsebh yJ9t5u8IufyPbm9kyI+rZt+T8ZlV2/qt2+mt6QgtDMnWrs+4nU15JY0SHImMSBZQ rBEZcQlrIcGJ+CsNB8Y7jIGYO0SSkhodAvfl0LRA0AbTqLGqq0OkAQS5D52r3H2r uz6xdYb7kG43XaRyaAIPqhZsp/jk2NrXvEvin2tSaXZFR1cxp+oxcV2UajmnOU6i EIBS4PzJnYx2RZRa+h8YbBa/+D4N6+fj/tjmwBawiUBPjjaLAsGFNwUHqvBoD05S bk6oXi654NBwVjsknZ0grVz0TtSvdZ3uJL5FZApTOHITqH8vlxlNefmHri4vZRZO NN7NIQ0yaUCnorzMg+vP8ZtflhQwrMJbjwIS9YD0RHd7MBhYX8k= =xZD2 -----END PGP SIGNATURE----- Merge tag 'flexible-array-transformations-5.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gustavoars/linux Pull flexible-array transformations from Gustavo Silva: "Treewide patch that replaces zero-length arrays with flexible-array members. This has been baking in linux-next for a whole development cycle" * tag 'flexible-array-transformations-5.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gustavoars/linux: treewide: Replace zero-length arrays with flexible-array members |
||
Borislav Petkov
|
b9080ba4a6 |
x86/defconfig: Enable WERROR
To quote Linus: "EVERYBODY should have CONFIG_WERROR=y on at least x86-64 and other serious architectures, unless you have some completely random experimental (and broken) compiler. New compiler warnings are not acceptable." So this should make at least the most obvious and common ones not go unnoticed. Acked-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Borislav Petkov <bp@suse.de> Signed-off-by: Ingo Molnar <mingo@kernel.org> Link: https://lore.kernel.org/r/YjsCpoRK7W4l6tSh@zn.tnic |
||
Jisheng Zhang
|
4ece09be99 |
x86/setup: use IS_ENABLED(CONFIG_KEXEC_CORE) instead of #ifdef
Replace the conditional compilation using "#ifdef CONFIG_KEXEC_CORE" by a check for "IS_ENABLED(CONFIG_KEXEC_CORE)", to simplify the code and increase compile coverage. Link: https://lkml.kernel.org/r/20211206160514.2000-4-jszhang@kernel.org Signed-off-by: Jisheng Zhang <jszhang@kernel.org> Acked-by: Baoquan He <bhe@redhat.com> Cc: Albert Ou <aou@eecs.berkeley.edu> Cc: Alexandre Ghiti <alex@ghiti.fr> Cc: Borislav Petkov <bp@alien8.de> Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Dave Hansen <dave.hansen@linux.intel.com> Cc: Eric W. Biederman <ebiederm@xmission.com> Cc: H. Peter Anvin <hpa@zytor.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Palmer Dabbelt <palmer@dabbelt.com> Cc: Palmer Dabbelt <palmer@rivosinc.com> Cc: Paul Walmsley <paul.walmsley@sifive.com> Cc: Russell King <linux@armlinux.org.uk> Cc: Russell King (Oracle) <rmk+kernel@armlinux.org.uk> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Will Deacon <will@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
||
|
Linus Torvalds
|
194dfe88d6 |
asm-generic updates for 5.18
There are three sets of updates for 5.18 in the asm-generic tree:
- The set_fs()/get_fs() infrastructure gets removed for good. This
was already gone from all major architectures, but now we can
finally remove it everywhere, which loses some particularly
tricky and error-prone code.
There is a small merge conflict against a parisc cleanup, the
solution is to use their new version.
- The nds32 architecture ends its tenure in the Linux kernel. The
hardware is still used and the code is in reasonable shape, but
the mainline port is not actively maintained any more, as all
remaining users are thought to run vendor kernels that would never
be updated to a future release.
There are some obvious conflicts against changes to the removed
files.
- A series from Masahiro Yamada cleans up some of the uapi header
files to pass the compile-time checks.
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Merge tag 'asm-generic-5.18' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic
Pull asm-generic updates from Arnd Bergmann:
"There are three sets of updates for 5.18 in the asm-generic tree:
- The set_fs()/get_fs() infrastructure gets removed for good.
This was already gone from all major architectures, but now we can
finally remove it everywhere, which loses some particularly tricky
and error-prone code. There is a small merge conflict against a
parisc cleanup, the solution is to use their new version.
- The nds32 architecture ends its tenure in the Linux kernel.
The hardware is still used and the code is in reasonable shape, but
the mainline port is not actively maintained any more, as all
remaining users are thought to run vendor kernels that would never
be updated to a future release.
- A series from Masahiro Yamada cleans up some of the uapi header
files to pass the compile-time checks"
* tag 'asm-generic-5.18' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic: (27 commits)
nds32: Remove the architecture
uaccess: remove CONFIG_SET_FS
ia64: remove CONFIG_SET_FS support
sh: remove CONFIG_SET_FS support
sparc64: remove CONFIG_SET_FS support
lib/test_lockup: fix kernel pointer check for separate address spaces
uaccess: generalize access_ok()
uaccess: fix type mismatch warnings from access_ok()
arm64: simplify access_ok()
m68k: fix access_ok for coldfire
MIPS: use simpler access_ok()
MIPS: Handle address errors for accesses above CPU max virtual user address
uaccess: add generic __{get,put}_kernel_nofault
nios2: drop access_ok() check from __put_user()
x86: use more conventional access_ok() definition
x86: remove __range_not_ok()
sparc64: add __{get,put}_kernel_nofault()
nds32: fix access_ok() checks in get/put_user
uaccess: fix nios2 and microblaze get_user_8()
sparc64: fix building assembly files
...
|
||
Yang Zhong
|
063452fd94 |
x86/fpu/xstate: Fix the ARCH_REQ_XCOMP_PERM implementation
ARCH_REQ_XCOMP_PERM is supposed to add the requested feature to the
permission bitmap of thread_group_leader()->fpu. But the code overwrites
the bitmap with the requested feature bit only rather than adding it.
Fix the code to add the requested feature bit to the master bitmask.
Fixes:
|
||
|
Linus Torvalds
|
3bf03b9a08 |
Merge branch 'akpm' (patches from Andrew)
Merge updates from Andrew Morton:
- A few misc subsystems: kthread, scripts, ntfs, ocfs2, block, and vfs
- Most the MM patches which precede the patches in Willy's tree: kasan,
pagecache, gup, swap, shmem, memcg, selftests, pagemap, mremap,
sparsemem, vmalloc, pagealloc, memory-failure, mlock, hugetlb,
userfaultfd, vmscan, compaction, mempolicy, oom-kill, migration, thp,
cma, autonuma, psi, ksm, page-poison, madvise, memory-hotplug, rmap,
zswap, uaccess, ioremap, highmem, cleanups, kfence, hmm, and damon.
* emailed patches from Andrew Morton <akpm@linux-foundation.org>: (227 commits)
mm/damon/sysfs: remove repeat container_of() in damon_sysfs_kdamond_release()
Docs/ABI/testing: add DAMON sysfs interface ABI document
Docs/admin-guide/mm/damon/usage: document DAMON sysfs interface
selftests/damon: add a test for DAMON sysfs interface
mm/damon/sysfs: support DAMOS stats
mm/damon/sysfs: support DAMOS watermarks
mm/damon/sysfs: support schemes prioritization
mm/damon/sysfs: support DAMOS quotas
mm/damon/sysfs: support DAMON-based Operation Schemes
mm/damon/sysfs: support the physical address space monitoring
mm/damon/sysfs: link DAMON for virtual address spaces monitoring
mm/damon: implement a minimal stub for sysfs-based DAMON interface
mm/damon/core: add number of each enum type values
mm/damon/core: allow non-exclusive DAMON start/stop
Docs/damon: update outdated term 'regions update interval'
Docs/vm/damon/design: update DAMON-Idle Page Tracking interference handling
Docs/vm/damon: call low level monitoring primitives the operations
mm/damon: remove unnecessary CONFIG_DAMON option
mm/damon/paddr,vaddr: remove damon_{p,v}a_{target_valid,set_operations}()
mm/damon/dbgfs-test: fix is_target_id() change
...
|
||
David Hildenbrand
|
2848a28b0a |
drivers/base/node: consolidate node device subsystem initialization in node_dev_init()
... and call node_dev_init() after memory_dev_init() from driver_init(), so before any of the existing arch/subsys calls. All online nodes should be known at that point: early during boot, arch code determines node and zone ranges and sets the relevant nodes online; usually this happens in setup_arch(). This is in line with memory_dev_init(), which initializes the memory device subsystem and creates all memory block devices. Similar to memory_dev_init(), panic() if anything goes wrong, we don't want to continue with such basic initialization errors. The important part is that node_dev_init() gets called after memory_dev_init() and after cpu_dev_init(), but before any of the relevant archs call register_cpu() to register the new cpu device under the node device. The latter should be the case for the current users of topology_init(). Link: https://lkml.kernel.org/r/20220203105212.30385-1-david@redhat.com Signed-off-by: David Hildenbrand <david@redhat.com> Reviewed-by: Oscar Salvador <osalvador@suse.de> Tested-by: Anatoly Pugachev <matorola@gmail.com> (sparc64) Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: Michal Hocko <mhocko@suse.com> Cc: Oscar Salvador <osalvador@suse.de> Cc: Mike Rapoport <rppt@kernel.org> Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Will Deacon <will@kernel.org> Cc: Thomas Bogendoerfer <tsbogend@alpha.franken.de> Cc: Michael Ellerman <mpe@ellerman.id.au> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Paul Walmsley <paul.walmsley@sifive.com> Cc: Palmer Dabbelt <palmer@dabbelt.com> Cc: Albert Ou <aou@eecs.berkeley.edu> Cc: Heiko Carstens <hca@linux.ibm.com> Cc: Vasily Gorbik <gor@linux.ibm.com> Cc: Yoshinori Sato <ysato@users.sourceforge.jp> Cc: Rich Felker <dalias@libc.org> Cc: "David S. Miller" <davem@davemloft.net> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Ingo Molnar <mingo@redhat.com> Cc: Borislav Petkov <bp@alien8.de> Cc: Dave Hansen <dave.hansen@linux.intel.com> Cc: "Rafael J. Wysocki" <rafael@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
||
|
Anshuman Khandual
|
07431506e8 |
mm/hugetlb: generalize ARCH_WANT_GENERAL_HUGETLB
ARCH_WANT_GENERAL_HUGETLB config has duplicate definitions on platforms that subscribe it. Instead make it a generic config option which can be selected on applicable platforms when required. Link: https://lkml.kernel.org/r/1643718465-4324-1-git-send-email-anshuman.khandual@arm.com Signed-off-by: Anshuman Khandual <anshuman.khandual@arm.com> Cc: Russell King <linux@armlinux.org.uk> Cc: Paul Walmsley <paul.walmsley@sifive.com> Cc: Palmer Dabbelt <palmer@dabbelt.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Ingo Molnar <mingo@redhat.com> Cc: Mike Kravetz <mike.kravetz@oracle.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
||
luofei
|
d1fe111fb6 |
mm/hwpoison: avoid the impact of hwpoison_filter() return value on mce handler
When the hwpoison page meets the filter conditions, it should not be regarded as successful memory_failure() processing for mce handler, but should return a distinct value, otherwise mce handler regards the error page has been identified and isolated, which may lead to calling set_mce_nospec() to change page attribute, etc. Here memory_failure() return -EOPNOTSUPP to indicate that the error event is filtered, mce handler should not take any action for this situation and hwpoison injector should treat as correct. Link: https://lkml.kernel.org/r/20220223082135.2769649-1-luofei@unicloud.com Signed-off-by: luofei <luofei@unicloud.com> Acked-by: Borislav Petkov <bp@suse.de> Cc: Dave Hansen <dave.hansen@linux.intel.com> Cc: H. Peter Anvin <hpa@zytor.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Miaohe Lin <linmiaohe@huawei.com> Cc: Naoya Horiguchi <naoya.horiguchi@nec.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Tony Luck <tony.luck@intel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
||
Oscar Salvador
|
1ca75fa7f1 |
arch/x86/mm/numa: Do not initialize nodes twice
On x86, prior to ("mm: handle uninitialized numa nodes gracecully"), NUMA
nodes could be allocated at three different places.
- numa_register_memblks
- init_cpu_to_node
- init_gi_nodes
All these calls happen at setup_arch, and have the following order:
setup_arch
...
x86_numa_init
numa_init
numa_register_memblks
...
init_cpu_to_node
init_memory_less_node
alloc_node_data
free_area_init_memoryless_node
init_gi_nodes
init_memory_less_node
alloc_node_data
free_area_init_memoryless_node
numa_register_memblks() is only interested in those nodes which have
memory, so it skips over any memoryless node it founds. Later on, when
we have read ACPI's SRAT table, we call init_cpu_to_node() and
init_gi_nodes(), which initialize any memoryless node we might have that
have either CPU or Initiator affinity, meaning we allocate pg_data_t
struct for them and we mark them as ONLINE.
So far so good, but the thing is that after ("mm: handle uninitialized
numa nodes gracefully"), we allocate all possible NUMA nodes in
free_area_init(), meaning we have a picture like the following:
setup_arch
x86_numa_init
numa_init
numa_register_memblks <-- allocate non-memoryless node
x86_init.paging.pagetable_init
...
free_area_init
free_area_init_memoryless <-- allocate memoryless node
init_cpu_to_node
alloc_node_data <-- allocate memoryless node with CPU
free_area_init_memoryless_node
init_gi_nodes
alloc_node_data <-- allocate memoryless node with Initiator
free_area_init_memoryless_node
free_area_init() already allocates all possible NUMA nodes, but
init_cpu_to_node() and init_gi_nodes() are clueless about that, so they
go ahead and allocate a new pg_data_t struct without checking anything,
meaning we end up allocating twice.
It should be mad clear that this only happens in the case where
memoryless NUMA node happens to have a CPU/Initiator affinity.
So get rid of init_memory_less_node() and just set the node online.
Note that setting the node online is needed, otherwise we choke down the
chain when bringup_nonboot_cpus() ends up calling
__try_online_node()->register_one_node()->... and we blow up in
bus_add_device(). As can be seen here:
BUG: kernel NULL pointer dereference, address: 0000000000000060
#PF: supervisor read access in kernel mode
#PF: error_code(0x0000) - not-present page
PGD 0 P4D 0
Oops: 0000 [#1] PREEMPT SMP DEBUG_PAGEALLOC PTI
CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.17.0-rc4-1-default+ #45
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.0.0-prebuilt.qemu-project.org 04/4
RIP: 0010:bus_add_device+0x5a/0x140
Code: 8b 74 24 20 48 89 df e8 84 96 ff ff 85 c0 89 c5 75 38 48 8b 53 50 48 85 d2 0f 84 bb 00 004
RSP: 0000:ffffc9000022bd10 EFLAGS: 00010246
RAX: 0000000000000000 RBX: ffff888100987400 RCX: ffff8881003e4e19
RDX: ffff8881009a5e00 RSI: ffff888100987400 RDI: ffff888100987400
RBP: 0000000000000000 R08: ffff8881003e4e18 R09: ffff8881003e4c98
R10: 0000000000000000 R11: ffff888100402bc0 R12: ffffffff822ceba0
R13: 0000000000000000 R14: ffff888100987400 R15: 0000000000000000
FS: 0000000000000000(0000) GS:ffff88853fc00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000060 CR3: 000000000200a001 CR4: 00000000001706b0
Call Trace:
device_add+0x4c0/0x910
__register_one_node+0x97/0x2d0
__try_online_node+0x85/0xc0
try_online_node+0x25/0x40
cpu_up+0x4f/0x100
bringup_nonboot_cpus+0x4f/0x60
smp_init+0x26/0x79
kernel_init_freeable+0x130/0x2f1
kernel_init+0x17/0x150
ret_from_fork+0x22/0x30
The reason is simple, by the time bringup_nonboot_cpus() gets called, we
did not register the node_subsys bus yet, so we crash when
bus_add_device() tries to dereference bus()->p.
The following shows the order of the calls:
kernel_init_freeable
smp_init
bringup_nonboot_cpus
...
bus_add_device() <- we did not register node_subsys yet
do_basic_setup
do_initcalls
postcore_initcall(register_node_type);
register_node_type
subsys_system_register
subsys_register
bus_register <- register node_subsys bus
Why setting the node online saves us then? Well, simply because
__try_online_node() backs off when the node is online, meaning we do not
end up calling register_one_node() in the first place.
This is subtle, broken and deserves a deep analysis and thought about
how to put this into shape, but for now let us have this easy fix for
the leaking memory issue.
[osalvador@suse.de: add comments]
Link: https://lkml.kernel.org/r/20220221142649.3457-1-osalvador@suse.de
Link: https://lkml.kernel.org/r/20220218224302.5282-2-osalvador@suse.de
Fixes: da4490c958ad ("mm: handle uninitialized numa nodes gracefully")
Signed-off-by: Oscar Salvador <osalvador@suse.de>
Acked-by: Michal Hocko <mhocko@suse.com>
Cc: David Hildenbrand <david@redhat.com>
Cc: Rafael Aquini <raquini@redhat.com>
Cc: Dave Hansen <dave.hansen@linux.intel.com>
Cc: Wei Yang <richard.weiyang@gmail.com>
Cc: Dennis Zhou <dennis@kernel.org>
Cc: Alexey Makhalov <amakhalov@vmware.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
|
||
|
Linus Torvalds
|
3fe2f7446f |
Changes in this cycle were:
- Cleanups for SCHED_DEADLINE
- Tracing updates/fixes
- CPU Accounting fixes
- First wave of changes to optimize the overhead of the scheduler build,
from the fast-headers tree - including placeholder *_api.h headers for
later header split-ups.
- Preempt-dynamic using static_branch() for ARM64
- Isolation housekeeping mask rework; preperatory for further changes
- NUMA-balancing: deal with CPU-less nodes
- NUMA-balancing: tune systems that have multiple LLC cache domains per node (eg. AMD)
- Updates to RSEQ UAPI in preparation for glibc usage
- Lots of RSEQ/selftests, for same
- Add Suren as PSI co-maintainer
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'sched-core-2022-03-22' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull scheduler updates from Ingo Molnar:
- Cleanups for SCHED_DEADLINE
- Tracing updates/fixes
- CPU Accounting fixes
- First wave of changes to optimize the overhead of the scheduler
build, from the fast-headers tree - including placeholder *_api.h
headers for later header split-ups.
- Preempt-dynamic using static_branch() for ARM64
- Isolation housekeeping mask rework; preperatory for further changes
- NUMA-balancing: deal with CPU-less nodes
- NUMA-balancing: tune systems that have multiple LLC cache domains per
node (eg. AMD)
- Updates to RSEQ UAPI in preparation for glibc usage
- Lots of RSEQ/selftests, for same
- Add Suren as PSI co-maintainer
* tag 'sched-core-2022-03-22' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (81 commits)
sched/headers: ARM needs asm/paravirt_api_clock.h too
sched/numa: Fix boot crash on arm64 systems
headers/prep: Fix header to build standalone: <linux/psi.h>
sched/headers: Only include <linux/entry-common.h> when CONFIG_GENERIC_ENTRY=y
cgroup: Fix suspicious rcu_dereference_check() usage warning
sched/preempt: Tell about PREEMPT_DYNAMIC on kernel headers
sched/topology: Remove redundant variable and fix incorrect type in build_sched_domains
sched/deadline,rt: Remove unused parameter from pick_next_[rt|dl]_entity()
sched/deadline,rt: Remove unused functions for !CONFIG_SMP
sched/deadline: Use __node_2_[pdl|dle]() and rb_first_cached() consistently
sched/deadline: Merge dl_task_can_attach() and dl_cpu_busy()
sched/deadline: Move bandwidth mgmt and reclaim functions into sched class source file
sched/deadline: Remove unused def_dl_bandwidth
sched/tracing: Report TASK_RTLOCK_WAIT tasks as TASK_UNINTERRUPTIBLE
sched/tracing: Don't re-read p->state when emitting sched_switch event
sched/rt: Plug rt_mutex_setprio() vs push_rt_task() race
sched/cpuacct: Remove redundant RCU read lock
sched/cpuacct: Optimize away RCU read lock
sched/cpuacct: Fix charge percpu cpuusage
sched/headers: Reorganize, clean up and optimize kernel/sched/sched.h dependencies
...
|
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|
Linus Torvalds
|
ebd326ce72 |
Changes in this cycle were:
- bitops & cpumask:
- Always inline various generic helpers, to improve code generation,
but also for instrumentation, found by noinstr validation.
- Add a x86-specific cpumask_clear_cpu() helper to improve code generation
- atomics:
- Fix atomic64_{read_acquire,set_release} fallbacks
- lockdep:
- Fix /proc/lockdep output loop iteration for classes
- Fix /proc/lockdep potential access to invalid memory
- minor cleanups
- Add Mark Rutland as reviewer for atomic primitives
- jump labels:
- Clean up the code a bit
- misc:
- Add __sched annotations to percpu rwsem primitives
- Enable RT_MUTEXES on PREEMPT_RT by default
- Stray v8086_mode() inlining fix, result of noinstr objtool validation
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'locking-core-2022-03-21' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull locking updates from Ingo Molnar:
"Changes in this cycle were:
Bitops & cpumask:
- Always inline various generic helpers, to improve code generation,
but also for instrumentation, found by noinstr validation.
- Add a x86-specific cpumask_clear_cpu() helper to improve code
generation
Atomics:
- Fix atomic64_{read_acquire,set_release} fallbacks
Lockdep:
- Fix /proc/lockdep output loop iteration for classes
- Fix /proc/lockdep potential access to invalid memory
- Add Mark Rutland as reviewer for atomic primitives
- Minor cleanups
Jump labels:
- Clean up the code a bit
Misc:
- Add __sched annotations to percpu rwsem primitives
- Enable RT_MUTEXES on PREEMPT_RT by default
- Stray v8086_mode() inlining fix, result of noinstr objtool
validation"
* tag 'locking-core-2022-03-21' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
jump_label: Refactor #ifdef of struct static_key
jump_label: Avoid unneeded casts in STATIC_KEY_INIT_{TRUE,FALSE}
locking/lockdep: Iterate lock_classes directly when reading lockdep files
x86/ptrace: Always inline v8086_mode() for instrumentation
cpumask: Add a x86-specific cpumask_clear_cpu() helper
locking: Enable RT_MUTEXES by default on PREEMPT_RT.
locking/local_lock: Make the empty local_lock_*() function a macro.
atomics: Fix atomic64_{read_acquire,set_release} fallbacks
locking: Add missing __sched attributes
cpumask: Always inline helpers which use bit manipulation functions
asm-generic/bitops: Always inline all bit manipulation helpers
locking/lockdep: Avoid potential access of invalid memory in lock_class
lockdep: Use memset_startat() helper in reinit_class()
MAINTAINERS: add myself as reviewer for atomics
|
||
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Peter Zijlstra
|
3986f65d4f |
kvm/emulate: Fix SETcc emulation for ENDBR
Companion patch for commit
|
||
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Peter Zijlstra
|
b9067cd80f |
Merge branch 'kvm/kvm-sls-fix'
Sync with the last minute SLS fix to extend it for IBT. Signed-off-by: Peter Zijlstra <peterz@infradead.org> |
||
|
Nathan Chancellor
|
f6a2c2b2de |
x86/Kconfig: Only allow CONFIG_X86_KERNEL_IBT with ld.lld >= 14.0.0
With CONFIG_X86_KERNEL_IBT=y and a version of ld.lld prior to 14.0.0, there are numerous objtool warnings along the lines of: warning: objtool: .plt+0x6: indirect jump found in RETPOLINE build This is a known issue that has been resolved in ld.lld 14.0.0. Prevent CONFIG_X86_KERNEL_IBT from being selectable when using one of these problematic ld.lld versions. Signed-off-by: Nathan Chancellor <nathan@kernel.org> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Link: https://lore.kernel.org/r/20220318230747.3900772-3-nathan@kernel.org |
||
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Nathan Chancellor
|
262448f3d1 |
x86/Kconfig: Only enable CONFIG_CC_HAS_IBT for clang >= 14.0.0
Commit
|
||
|
Linus Torvalds
|
95ab0e8768 |
Changes for this cycle were:
- Fix address filtering for Intel/PT,ARM/CoreSight - Enable Intel/PEBS format 5 - Allow more fixed-function counters for x86 - Intel/PT: Enable not recording Taken-Not-Taken packets - Add a few branch-types Signed-off-by: Ingo Molnar <mingo@kernel.org> -----BEGIN PGP SIGNATURE----- iQJFBAABCgAvFiEEBpT5eoXrXCwVQwEKEnMQ0APhK1gFAmI4WdIRHG1pbmdvQGtl cm5lbC5vcmcACgkQEnMQ0APhK1jdTA/7BADTYzFCbdwPzHt2mR8osv7k+pDvYxs9 wxNjyi1X7N8cPkhqgIg9CfdhdyDOqo7+J4fG17f2qbwjNK7b2Fb1/U6ZoZaf+f8F W0e2LX5KZTXUhkA+TEjrXvYD9FmJaCPM/l2RQg8U7okBs2kb0H6QT2Yn21wd1roC WwI5KFiWSVS1IzpVLaXjDh+FJfJHd75ReMqJeus+QoVQ9NHeuI+t4DglSB1IBi54 d/zeVXE/Y4dFTQOrU06S2HxcOEptvXZsPmVLvKab/veeGGyWiGPxQpvu6bXm6u3x 0sV+dn67zut2m2pQlUZUucgGTSYIZTpOe+rNukTB9hJ4XeN4/1ohOOCrOuYM+63P lGFbN1v+LD7Wc6C2eEhw8G5GEL0qbwzFNQ06O3EOFi7C7GKn7WS/ET6XuuMOERFk uxEPb4pFtbBlJ0SriCprFJSd5NL3PORZlLIhv4hGH5hilLR1TFeKDuwZaM4noQxU dL3rKGLi9H+P46Eni9H28+0gDISbv1xL+WivHOFQNmhBqAZO52ZcF3J+dgBaR1B5 pBxVTycFpZMjxSZnqTE0gMsFaLIpVGc+75Chns1rajR0mEtRtJUQUbYz4tK4zb0E dZR1p+VF6+DYmSRhiqeaTi9uz9oE8kMa8o/EcbFIg/9BgEnUwJXU20bjnar30xQ7 9OIn7r9hjHI= =XPuo -----END PGP SIGNATURE----- Merge tag 'perf-core-2022-03-21' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull x86 perf event updates from Ingo Molnar: - Fix address filtering for Intel/PT,ARM/CoreSight - Enable Intel/PEBS format 5 - Allow more fixed-function counters for x86 - Intel/PT: Enable not recording Taken-Not-Taken packets - Add a few branch-types * tag 'perf-core-2022-03-21' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: perf/x86/intel/uncore: Fix the build on !CONFIG_PHYS_ADDR_T_64BIT perf: Add irq and exception return branch types perf/x86/intel/uncore: Make uncore_discovery clean for 64 bit addresses perf/x86/intel/pt: Add a capability and config bit for disabling TNTs perf/x86/intel/pt: Add a capability and config bit for event tracing perf/x86/intel: Increase max number of the fixed counters KVM: x86: use the KVM side max supported fixed counter perf/x86/intel: Enable PEBS format 5 perf/core: Allow kernel address filter when not filtering the kernel perf/x86/intel/pt: Fix address filter config for 32-bit kernel perf/core: Fix address filter parser for multiple filters x86: Share definition of __is_canonical_address() perf/x86/intel/pt: Relax address filter validation |
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Jakub Kicinski
|
0db8640df5 |
Merge https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next
Alexei Starovoitov says: ==================== pull-request: bpf-next 2022-03-21 v2 We've added 137 non-merge commits during the last 17 day(s) which contain a total of 143 files changed, 7123 insertions(+), 1092 deletions(-). The main changes are: 1) Custom SEC() handling in libbpf, from Andrii. 2) subskeleton support, from Delyan. 3) Use btf_tag to recognize __percpu pointers in the verifier, from Hao. 4) Fix net.core.bpf_jit_harden race, from Hou. 5) Fix bpf_sk_lookup remote_port on big-endian, from Jakub. 6) Introduce fprobe (multi kprobe) _without_ arch bits, from Masami. The arch specific bits will come later. 7) Introduce multi_kprobe bpf programs on top of fprobe, from Jiri. 8) Enable non-atomic allocations in local storage, from Joanne. 9) Various var_off ptr_to_btf_id fixed, from Kumar. 10) bpf_ima_file_hash helper, from Roberto. 11) Add "live packet" mode for XDP in BPF_PROG_RUN, from Toke. * https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next: (137 commits) selftests/bpf: Fix kprobe_multi test. Revert "rethook: x86: Add rethook x86 implementation" Revert "arm64: rethook: Add arm64 rethook implementation" Revert "powerpc: Add rethook support" Revert "ARM: rethook: Add rethook arm implementation" bpftool: Fix a bug in subskeleton code generation bpf: Fix bpf_prog_pack when PMU_SIZE is not defined bpf: Fix bpf_prog_pack for multi-node setup bpf: Fix warning for cast from restricted gfp_t in verifier bpf, arm: Fix various typos in comments libbpf: Close fd in bpf_object__reuse_map bpftool: Fix print error when show bpf map bpf: Fix kprobe_multi return probe backtrace Revert "bpf: Add support to inline bpf_get_func_ip helper on x86" bpf: Simplify check in btf_parse_hdr() selftests/bpf/test_lirc_mode2.sh: Exit with proper code bpf: Check for NULL return from bpf_get_btf_vmlinux selftests/bpf: Test skipping stacktrace bpf: Adjust BPF stack helper functions to accommodate skip > 0 bpf: Select proper size for bpf_prog_pack ... ==================== Link: https://lore.kernel.org/r/20220322050159.5507-1-alexei.starovoitov@gmail.com Signed-off-by: Jakub Kicinski <kuba@kernel.org> |
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Alexei Starovoitov
|
4e8ca13440 |
Revert "rethook: x86: Add rethook x86 implementation"
This reverts commit
|
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Randy Dunlap
|
b9fae6a47b |
x86/PCI: Add #includes to asm/pci_x86.h
<asm/pci_x86.h> uses raw_spinlock_t, __init, and EINVAL; #include the appropriate files to prevent build errors. ../arch/x86/include/asm/pci_x86.h:105:8: error: unknown type name ‘raw_spinlock_t’ ../arch/x86/include/asm/pci_x86.h:141:20: error: expected ‘=’, ‘,’, ‘;’, ‘asm’ or ‘__attribute__’ before ‘dmi_check_pciprobe’ ../arch/x86/include/asm/pci_x86.h:150:10: error: ‘EINVAL’ undeclared (first use in this function) Link: https://lore.kernel.org/r/20220226213703.24041-1-rdunlap@infradead.org Signed-off-by: Randy Dunlap <rdunlap@infradead.org> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Cc: Mark Brown <broonie@kernel.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Ingo Molnar <mingo@redhat.com> Cc: Borislav Petkov <bp@alien8.de> Cc: Dave Hansen <dave.hansen@linux.intel.com> |
||
|
Linus Torvalds
|
8565d64430 |
bounds-fixes updates for v5.18-rc1
- Various buffer and array bounds related fixes -----BEGIN PGP SIGNATURE----- iQJKBAABCgA0FiEEpcP2jyKd1g9yPm4TiXL039xtwCYFAmI4nPQWHGtlZXNjb29r QGNocm9taXVtLm9yZwAKCRCJcvTf3G3AJi/gD/9UctJGcKAi28EVVcS11oLSxl97 LuIOJ4lWr8WUpCUqHcN65biUoODjshkIJRTx6Vxx9diLm3u6NO58+oJJCveKvE7w LtFjkbXBZ2sTxUoMZiva7qW8A6pYTfpiGq2lyUWVZRLOAMnNlCVuhcIonkzkR7js xdMZ2AmiQ0LJqT8paw4UUtSxGXGpLkcbuEoWHVWbqd3jgUbDwA4WR4xJw3ZUyh9i ONHOsfl/nFCNcLU69ppGJWPlXqNr5hHjjCeRzlcMfnwD/kxA7Qgt5TmpdEeAD4zx csNbvXbaW2Y+5IUWKXHT2Rt0rW1u+Zi5c+mtstTJf7XqK6slvTdLugY5TCtI6oXf x4qOMbqDjPbTr9Gpw3289WlqZYNJs1pGdeD4zL2HiOmwXq75GCNgxe0bv1hjnhNG b/bggAkpN/0n9r5BCQ32FWBg6S26VPOzg7//l6M38EBtQyakBVnS/064SP3aGTx4 8oCKmrNLQXyQz7mdskOA9hwyEkF1+hCX2kJFsoZ9iN0TDYKzzJYP8cBLzZe6bfPE dqsAc36W8FIHATfo7wrbTVABP61wJcHgocSLICRYmGQrSMTqREl9P+nDDEWl/wcc vKd1kyYhnskcz7GVdFtSDnpcHp6W/aiLwJUFCpAkgz2GBzrt1MtGxnFrXl6s8cc4 bSK/JClIBhMvBas4Tw== =gm8R -----END PGP SIGNATURE----- Merge tag 'bounds-fixes-v5.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux Pull bounds fixes from Kees Cook: "These are a handful of buffer and array bounds fixes that I've been carrying in preparation for the coming memcpy improvements and the enabling of '-Warray-bounds' globally. There are additional similar fixes in other maintainer's trees, but these ended up getting carried by me. :)" * tag 'bounds-fixes-v5.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux: media: omap3isp: Use struct_group() for memcpy() region tpm: vtpm_proxy: Check length to avoid compiler warning alpha: Silence -Warray-bounds warnings m68k: cmpxchg: Dereference matching size intel_th: msu: Use memset_startat() for clearing hw header KVM: x86: Replace memset() "optimization" with normal per-field writes |
||
|
Linus Torvalds
|
d0858cbdef |
overflow updates for v5.18-rc1
- Convert overflow selftest to KUnit - Convert stackinit selftest to KUnit - Implement size_t saturating arithmetic helpers - Allow struct_size() to be used in initializers -----BEGIN PGP SIGNATURE----- iQJKBAABCgA0FiEEpcP2jyKd1g9yPm4TiXL039xtwCYFAmI4l80WHGtlZXNjb29r QGNocm9taXVtLm9yZwAKCRCJcvTf3G3AJjsSEACqmwsnvyQXI+fKBr/wsqGRGdTx cURccVT/mhQSaAAJMoYjWqOQZVs63dwtoM9leVA9rZuAFNFyiGKrK5r/KhpOijYu AlIOPJzxDnPDu/jHHtAnDgsUeTHPhDnqLPK5j+oz1gPkyHBLyBFvEqDNrlAiTbvV JLkssdcYPEv8QiLBkqX5ossOexxHksvxixmXts1Vc85I/anyuvtbpq/u7HsUrbcO +f/qj7ekB114VgREPJZu5wc2pB+iJMA8jEGqrNLWCOqRIFXJOWLWky/wmATjwXST Pi1kwzII7XZQMrVlMOK0P4YxepLKv5wnJGxZIi6JwJswd0a6oc8NLDTXrtHEq0jq 5Vqq+nPCyW2+OLWF5sNLYzlArI3G6tIPWQSxJcLfcnXLP/tz1+KiW4aa46V16N+D MBQBCK1xei61kWFixn5qGVydOoaTTXgDhMWenxEk55EuU+S9XmiC1Nwvodsl65dv RVGEYfk/7AlRGGTdasn35+6cmrFaCrElGz8+ZfDTaZZbbr6FfWpXRB4xQYwmqwDh YGoyXNQdqlxtGaH5lutmsK5l+q2NlD0u8qRk6pti07hHMAJEyb0i6o3lNsUyw38T gjoglwZUYOUwGOaWk6IOA7Gc3vCycdzP5t2njjBx/54PrCI9tq1oCN9bE6eAtRcA 4BoHC368qhuPttUaWA== =eRcK -----END PGP SIGNATURE----- Merge tag 'overflow-v5.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux Pull overflow updates from Kees Cook: "These changes come in roughly two halves: support of Gustavo A. R. Silva's struct_size() work via additional helpers for catching overflow allocation size calculations, and conversions of selftests to KUnit (which includes some tweaks for UML + Clang): - Convert overflow selftest to KUnit - Convert stackinit selftest to KUnit - Implement size_t saturating arithmetic helpers - Allow struct_size() to be used in initializers" * tag 'overflow-v5.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux: lib: stackinit: Convert to KUnit um: Allow builds with Clang lib: overflow: Convert to Kunit overflow: Provide constant expression struct_size overflow: Implement size_t saturating arithmetic helpers test_overflow: Regularize test reporting output |
||
|
Linus Torvalds
|
2142b7f0c6 |
hardening updates for v5.18-rc1
- Add arm64 Shadow Call Stack support for GCC 12 (Dan Li) - Avoid memset with stack offset randomization under Clang (Marco Elver) - Clean up stackleak plugin to play nice with .noinstr (Kees Cook) - Check stack depth for greater usercopy hardening coverage (Kees Cook) -----BEGIN PGP SIGNATURE----- iQJKBAABCgA0FiEEpcP2jyKd1g9yPm4TiXL039xtwCYFAmI4kXMWHGtlZXNjb29r QGNocm9taXVtLm9yZwAKCRCJcvTf3G3AJhBoD/wJFr0s13Cvsbibuk7PLAPJlQe9 QBMolrrS9+JNoqdIMiILrmthCPnDBkBNrU/YvfkIyGQOO2RGxrtZVzLhyHKCDg6u iIkNG9S5D12ucEdqqLWdZxyBZcQuR6Rf//lGvtx8ps+jYy8fDwRekurJIb3kWl5u qB0O0PFd+RjGgvtm+Fh8h0FiBMxbKfPXI+s7W2rCfcwe+w5Z24YD1eoCHmnQJYcu Mnuk7cHsx2TFms4UqUK1Z/0EBpCKNEEX4s0z/nrfu8dRTPvLqLgbGpcmXTkik9PN BucIxgdRqqYbTyGvhsDhpEUVfmFcQzdPmuMnnnUc8BiXy9EqGqSfjMEzutuf+RS7 0i4LWoDW2LYMUixqDLAMdLpwdC2Ca7hP62kE4vNVqW3jBty+jhPBVO6ddhHO14nd q6m+CQz0SVTIyrLI4N+TNg/EIj2DpBpAhs49QWDOL/ZqP0ewYk8Ef8pXKgJo2jJC aAs+18pdpoVCEs1fztzjuWZT77iTmziYhb2BOMnT4yBcAdifi7eW6l0pYsgfxoJ/ WC/MmTWt08/IHBk09d8GbFdoP8byDUgzmzUUoskJJH2JA7475xM6qhI2J627Lpth baEv3UT8JWBBX+koU2wxhxKgscIvbNjJjpEGNt2YuBBeQ4lrlijsFzQjmu62gZDL LG0XOVV97/1V9uJ2CA== =yaWZ -----END PGP SIGNATURE----- Merge tag 'hardening-v5.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux Pull kernel hardening updates from Kees Cook: - Add arm64 Shadow Call Stack support for GCC 12 (Dan Li) - Avoid memset with stack offset randomization under Clang (Marco Elver) - Clean up stackleak plugin to play nice with .noinstr (Kees Cook) - Check stack depth for greater usercopy hardening coverage (Kees Cook) * tag 'hardening-v5.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux: arm64: Add gcc Shadow Call Stack support m68k: Implement "current_stack_pointer" xtensa: Implement "current_stack_pointer" usercopy: Check valid lifetime via stack depth stack: Constrain and fix stack offset randomization with Clang builds stack: Introduce CONFIG_RANDOMIZE_KSTACK_OFFSET gcc-plugins/stackleak: Ignore .noinstr.text and .entry.text gcc-plugins/stackleak: Exactly match strings instead of prefixes gcc-plugins/stackleak: Provide verbose mode |
||
|
Linus Torvalds
|
fd27687791 |
hwmon updates for v5.18
New drivers
- Driver for Texas Instruments TMP464 and TMP468
- Driver for Vicor PLI1209BC Digital Supervisor
- Driver for ASUS EC
Improvements to existing drivers:
- adt7x10: Convert to use regmap, convert to use with_info API,
use hwmon_notify_event, and other cleanup
- aquacomputer_d5next: Add support for Aquacomputer Farbwerk 360
- asus_wmi_sensors: Add ASUS ROG STRIX B450-F GAMING II
- asus_wmi_ec_sensors: Support T_Sensor on Prime X570-Pro
Deprecate driver (replaced by new driver)
- axi-fan-control: Use hwmon_notify_event
- dell-smm: Clean up CONFIG_I8K, disable fan type support for
Inspiron 3505, various other cleanup
- hwmon core: Report attribute name with udev events,
Add "label" attribute to ABI,
Add support for pwm auto channels attribute
- max6639: Add regulator support
- lm70: Add support for TI TMP125
- lm83: Cleanup, convert to use with_info API
- mlxreg-fan: Use pwm attribute for setting fan speed low limit
- nct6775: Sdd ASUS ROG STRIX Z390/Z490/X570-* / PRIME X570-P,
PRIME B550-PLUS, ASUS Pro B550M-C/PRIME B550M-A,
and support for TSI temperature registers
- occ: Add various new sysfs attributes
- pmbus core: Handle VIN unit off status,
Add regulator supply into macro,
Add get_error_flags support to regulator ops
- pmbus/adm1275: Allow setting sample averaging
- pmbus/lm25066: Add regulator support
- pmbus/xdpe12284: Add support for xdpe11280 and register as regulator
- powr1220: Convert to with_info API,
Add support for Lattice's POWR1014 power manager IC
- sch56xx: Cleanup and minor improvements
- sch5627: Add pwmX_auto_channels_temp support
- tc654: Add thermal_cooling device support
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Merge tag 'hwmon-for-v5.18' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging
Pull hwmon updates from Guenter Roeck:
"New drivers:
- Texas Instruments TMP464 and TMP468 driver
- Vicor PLI1209BC Digital Supervisor driver
- ASUS EC driver
Improvements to existing drivers:
- adt7x10:
- Convert to use regmap
- convert to use with_info API
- use hwmon_notify_event
- other cleanup
- aquacomputer_d5next:
- Add support for Aquacomputer Farbwerk 360
- asus_wmi_sensors:
- Add ASUS ROG STRIX B450-F GAMING II
- asus_wmi_ec_sensors:
- Support T_Sensor on Prime X570-Pro
- Deprecate driver (replaced by new driver)
- axi-fan-control:
- Use hwmon_notify_event
- dell-smm:
- Clean up CONFIG_I8K
- disable fan type support for Inspiron 3505
- various other cleanup
- hwmon core:
- Report attribute name with udev events
- Add "label" attribute to ABI,
- Add support for pwm auto channels attribute
- max6639:
- Add regulator support
- lm70:
- Add support for TI TMP125
- lm83:
- Cleanup, convert to use with_info API
- mlxreg-fan:
- Use pwm attribute for setting fan speed low limit
- nct6775:
- Add board ID's for ASUS ROG STRIX Z390/Z490/X570-* / PRIME
X570-P, PRIME B550-PLUS, ASUS Pro B550M-C/PRIME B550M-A
- Add support for TSI temperature registers
- occ:
- Add various new sysfs attributes
- pmbus core:
- Handle VIN unit off status
- Add regulator supply into macro
- Add get_error_flags support to regulator ops
- pmbus/adm1275:
- Allow setting sample averaging
- pmbus/lm25066:
- Add regulator support
- pmbus/xdpe12284:
- Add support for xdpe11280
- register as regulator
- powr1220:
- Convert to with_info API
- Add support for Lattice's POWR1014 power manager IC
- sch56xx:
- Cleanup and minor improvements
- sch5627:
- Add pwmX_auto_channels_temp support
- tc654:
- Add thermal_cooling device support"
* tag 'hwmon-for-v5.18' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging: (86 commits)
hwmon: (dell-smm) Add Inspiron 3505 to fan type blacklist
hwmon: (pmbus) Add Vin unit off handling
hwmon: (scpi-hwmon): Use of_device_get_match_data()
hwmon: (axi-fan-control) Use hwmon_notify_event
hwmon: (vexpress-hwmon) Use of_device_get_match_data()
hwmon: Add driver for Texas Instruments TMP464 and TMP468
dt-bindings: hwmon: add tmp464.yaml
dt-bindings: hwmon: Add sample averaging properties for ADM1275
hwmon: (adm1275) Allow setting sample averaging
hwmon: (xdpe12284) Add regulator support
hwmon: (xdpe12284) Add support for xdpe11280
dt-bindings: trivial-devices: Add xdpe11280
hwmon: (aquacomputer_d5next) Add support for Aquacomputer Farbwerk 360
hwmon: (sch5627) Add pwmX_auto_channels_temp support
hwmon: (core) Add support for pwm auto channels attribute
hwmon: (lm70) Add ti,tmp125 support
dt-bindings: Add ti,tmp125 temperature sensor binding
hwmon: (pmbus/pli1209bc) Add regulator support
hwmon: (pmbus) Add support for pli1209bc
dt-bindings:trivial-devices: Add pli1209bc
...
|
||
|
Linus Torvalds
|
93e220a62d |
Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6
Pull crypto updates from Herbert Xu: "API: - hwrng core now credits for low-quality RNG devices. Algorithms: - Optimisations for neon aes on arm/arm64. - Add accelerated crc32_be on arm64. - Add ffdheXYZ(dh) templates. - Disallow hmac keys < 112 bits in FIPS mode. - Add AVX assembly implementation for sm3 on x86. Drivers: - Add missing local_bh_disable calls for crypto_engine callback. - Ensure BH is disabled in crypto_engine callback path. - Fix zero length DMA mappings in ccree. - Add synchronization between mailbox accesses in octeontx2. - Add Xilinx SHA3 driver. - Add support for the TDES IP available on sama7g5 SoC in atmel" * 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: (137 commits) crypto: xilinx - Turn SHA into a tristate and allow COMPILE_TEST MAINTAINERS: update HPRE/SEC2/TRNG driver maintainers list crypto: dh - Remove the unused function dh_safe_prime_dh_alg() hwrng: nomadik - Change clk_disable to clk_disable_unprepare crypto: arm64 - cleanup comments crypto: qat - fix initialization of pfvf rts_map_msg structures crypto: qat - fix initialization of pfvf cap_msg structures crypto: qat - remove unneeded assignment crypto: qat - disable registration of algorithms crypto: hisilicon/qm - fix memset during queues clearing crypto: xilinx: prevent probing on non-xilinx hardware crypto: marvell/octeontx - Use swap() instead of open coding it crypto: ccree - Fix use after free in cc_cipher_exit() crypto: ccp - ccp_dmaengine_unregister release dma channels crypto: octeontx2 - fix missing unlock hwrng: cavium - fix NULL but dereferenced coccicheck error crypto: cavium/nitrox - don't cast parameter in bit operations crypto: vmx - add missing dependencies MAINTAINERS: Add maintainer for Xilinx ZynqMP SHA3 driver crypto: xilinx - Add Xilinx SHA3 driver ... |
||
|
Linus Torvalds
|
f648372dfe |
Thermal control updates for 5.18-rc1
- Add a new thermal driver for the Intel Hardware Feedback Interface
(HFI) including the HFI initialization, HFI notification interrupt
handling and sending CPU capabilities change messages to user
space via the thermal netlink interface (Ricardo Neri, Srinivas
Pandruvada, Nathan Chancellor, Randy Dunlap).
- Extend the intel-speed-select utility to handle out-of-band CPU
configuration changes and add support for the CPU capabilities
change messages sent over the thermal netlink interface by the new
HFI thermal driver to it (Srinivas Pandruvada).
- Convert the DT bindings to yaml format for the Exynos platform
and fix and update the MAINTAINERS file for this driver (Krzysztof
Kozlowski).
- Register the thermal zones as HWmon sensors for the QCom's
Tsens driver and TI thermal platforms (Dmitry Baryshkov, Romain
Naour).
- Add the msm8953 compatible documentation in the bindings (Luca
Weiss).
- Add the sm8150 platform support to the QCom LMh driver's DT
binding (Thara Gopinath).
- Check the command result from the IPC command to the BPMP in the
Tegra driver (Mikko Perttunen).
- Silence the error for normal configuration where the interrupt
is optionnal in the Broadcom thermal driver (Florian Fainelli).
- Remove remaining dead code from the TI thermal driver (Yue
Haibing).
- Don't use bitmap_weight() in end_power_clamp() in the powerclamp
driver (Yury Norov).
- Update the OS policy capabilities handshake in the int340x thermal
driver (Srinivas Pandruvada).
- Increase the policies bitmap size in int340x (Srinivas Pandruvada).
- Replace acpi_bus_get_device() with acpi_fetch_acpi_dev() in the
int340x thermal driver (Rafael Wysocki).
- Check for NULL after calling kmemdup() in int340x (Jiasheng Jiang).
- Add Intel Dynamic Power and Thermal Framework (DPTF) kernel interface
documentation (Srinivas Pandruvada).
- Fix bullet list warning in the thermal documentation (Randy Dunlap).
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Merge tag 'thermal-5.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull thermal control updates from Rafael Wysocki:
"As far as new functionality is concerned, there is a new thermal
driver for the Intel Hardware Feedback Interface (HFI) along with some
intel-speed-select utility changes to support it. There are also new
DT compatible strings for a couple of platforms, and thermal zones on
some platforms will be registered as HWmon sensors now.
Apart from the above, some drivers are updated (fixes mostly) and
there is a new piece of documentation for the Intel DPTF (Dynamic
Power and Thermal Framework) sysfs interface.
Specifics:
- Add a new thermal driver for the Intel Hardware Feedback Interface
(HFI) including the HFI initialization, HFI notification interrupt
handling and sending CPU capabilities change messages to user space
via the thermal netlink interface (Ricardo Neri, Srinivas
Pandruvada, Nathan Chancellor, Randy Dunlap).
- Extend the intel-speed-select utility to handle out-of-band CPU
configuration changes and add support for the CPU capabilities
change messages sent over the thermal netlink interface by the new
HFI thermal driver to it (Srinivas Pandruvada).
- Convert the DT bindings to yaml format for the Exynos platform and
fix and update the MAINTAINERS file for this driver (Krzysztof
Kozlowski).
- Register the thermal zones as HWmon sensors for the QCom's Tsens
driver and TI thermal platforms (Dmitry Baryshkov, Romain Naour).
- Add the msm8953 compatible documentation in the bindings (Luca
Weiss).
- Add the sm8150 platform support to the QCom LMh driver's DT binding
(Thara Gopinath).
- Check the command result from the IPC command to the BPMP in the
Tegra driver (Mikko Perttunen).
- Silence the error for normal configuration where the interrupt is
optionnal in the Broadcom thermal driver (Florian Fainelli).
- Remove remaining dead code from the TI thermal driver (Yue
Haibing).
- Don't use bitmap_weight() in end_power_clamp() in the powerclamp
driver (Yury Norov).
- Update the OS policy capabilities handshake in the int340x thermal
driver (Srinivas Pandruvada).
- Increase the policies bitmap size in int340x (Srinivas Pandruvada).
- Replace acpi_bus_get_device() with acpi_fetch_acpi_dev() in the
int340x thermal driver (Rafael Wysocki).
- Check for NULL after calling kmemdup() in int340x (Jiasheng Jiang).
- Add Intel Dynamic Power and Thermal Framework (DPTF) kernel
interface documentation (Srinivas Pandruvada).
- Fix bullet list warning in the thermal documentation (Randy
Dunlap)"
* tag 'thermal-5.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (30 commits)
thermal: int340x: Update OS policy capability handshake
thermal: int340x: Increase bitmap size
Documentation: thermal: DPTF Documentation
MAINTAINERS: thermal: samsung: update Krzysztof Kozlowski's email
thermal/drivers/ti-soc-thermal: Remove unused function ti_thermal_get_temp()
thermal/drivers/brcmstb_thermal: Interrupt is optional
thermal: tegra-bpmp: Handle errors in BPMP response
drivers/thermal/ti-soc-thermal: Add hwmon support
dt-bindings: thermal: tsens: Add msm8953 compatible
dt-bindings: thermal: Add sm8150 compatible string for LMh
thermal/drivers/qcom/lmh: Add support for sm8150
thermal/drivers/tsens: register thermal zones as hwmon sensors
MAINTAINERS: thermal: samsung: Drop obsolete properties
dt-bindings: thermal: samsung: Convert to dtschema
tools/power/x86/intel-speed-select: v1.12 release
tools/power/x86/intel-speed-select: HFI support
tools/power/x86/intel-speed-select: OOB daemon mode
thermal: intel: hfi: INTEL_HFI_THERMAL depends on NET
thermal: netlink: Fix parameter type of thermal_genl_cpu_capability_event() stub
thermal: Replace acpi_bus_get_device()
...
|
||
|
Linus Torvalds
|
02b82b02c3 |
Power management updates for 5.18-rc1
- Allow device_pm_check_callbacks() to be called from interrupt
context without issues (Dmitry Baryshkov).
- Modify devm_pm_runtime_enable() to automatically handle
pm_runtime_dont_use_autosuspend() at driver exit time (Douglas
Anderson).
- Make the schedutil cpufreq governor use to_gov_attr_set() instead
of open coding it (Kevin Hao).
- Replace acpi_bus_get_device() with acpi_fetch_acpi_dev() in the
cpufreq longhaul driver (Rafael Wysocki).
- Unify show() and store() naming in cpufreq and make it use
__ATTR_XX (Lianjie Zhang).
- Make the intel_pstate driver use the EPP value set by the firmware
by default (Srinivas Pandruvada).
- Re-order the init checks in the powernow-k8 cpufreq driver (Mario
Limonciello).
- Make the ACPI processor idle driver check for architectural
support for LPI to avoid using it on x86 by mistake (Mario
Limonciello).
- Add Sapphire Rapids Xeon support to the intel_idle driver (Artem
Bityutskiy).
- Add 'preferred_cstates' module argument to the intel_idle driver
to work around C1 and C1E handling issue on Sapphire Rapids (Artem
Bityutskiy).
- Add core C6 optimization on Sapphire Rapids to the intel_idle
driver (Artem Bityutskiy).
- Optimize the haltpoll cpuidle driver a bit (Li RongQing).
- Remove leftover text from intel_idle() kerneldoc comment and fix
up white space in intel_idle (Rafael Wysocki).
- Fix load_image_and_restore() error path (Ye Bin).
- Fix typos in comments in the system wakeup hadling code (Tom Rix).
- Clean up non-kernel-doc comments in hibernation code (Jiapeng
Chong).
- Fix __setup handler error handling in system-wide suspend and
hibernation core code (Randy Dunlap).
- Add device name to suspend_report_result() (Youngjin Jang).
- Make virtual guests honour ACPI S4 hardware signature by
default (David Woodhouse).
- Block power off of a parent PM domain unless child is in deepest
state (Ulf Hansson).
- Use dev_err_probe() to simplify error handling for generic PM
domains (Ahmad Fatoum).
- Fix sleep-in-atomic bug caused by genpd_debug_remove() (Shawn Guo).
- Document Intel uncore frequency scaling (Srinivas Pandruvada).
- Add DTPM hierarchy description (Daniel Lezcano).
- Change the locking scheme in DTPM (Daniel Lezcano).
- Fix dtpm_cpu cleanup at exit time and missing virtual DTPM pointer
release (Daniel Lezcano).
- Make dtpm_node_callback[] static (kernel test robot).
- Fix spelling mistake "initialze" -> "initialize" in
dtpm_create_hierarchy() (Colin Ian King).
- Add tracer tool for the amd-pstate driver (Jinzhou Su).
- Fix PC6 displaying in turbostat on some systems (Artem Bityutskiy).
- Add AMD P-State support to the cpupower utility (Huang Rui).
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Merge tag 'pm-5.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull power management updates from Rafael Wysocki:
"These are mostly fixes and cleanups all over the code and a new piece
of documentation for Intel uncore frequency scaling.
Functionality-wise, the intel_idle driver will support Sapphire Rapids
Xeons natively now (with some extra facilities for controlling
C-states more precisely on those systems), virtual guests will take
the ACPI S4 hardware signature into account by default, the
intel_pstate driver will take the defualt EPP value from the firmware,
cpupower utility will support the AMD P-state driver added in the
previous cycle, and there is a new tracer utility for that driver.
Specifics:
- Allow device_pm_check_callbacks() to be called from interrupt
context without issues (Dmitry Baryshkov).
- Modify devm_pm_runtime_enable() to automatically handle
pm_runtime_dont_use_autosuspend() at driver exit time (Douglas
Anderson).
- Make the schedutil cpufreq governor use to_gov_attr_set() instead
of open coding it (Kevin Hao).
- Replace acpi_bus_get_device() with acpi_fetch_acpi_dev() in the
cpufreq longhaul driver (Rafael Wysocki).
- Unify show() and store() naming in cpufreq and make it use
__ATTR_XX (Lianjie Zhang).
- Make the intel_pstate driver use the EPP value set by the firmware
by default (Srinivas Pandruvada).
- Re-order the init checks in the powernow-k8 cpufreq driver (Mario
Limonciello).
- Make the ACPI processor idle driver check for architectural support
for LPI to avoid using it on x86 by mistake (Mario Limonciello).
- Add Sapphire Rapids Xeon support to the intel_idle driver (Artem
Bityutskiy).
- Add 'preferred_cstates' module argument to the intel_idle driver to
work around C1 and C1E handling issue on Sapphire Rapids (Artem
Bityutskiy).
- Add core C6 optimization on Sapphire Rapids to the intel_idle
driver (Artem Bityutskiy).
- Optimize the haltpoll cpuidle driver a bit (Li RongQing).
- Remove leftover text from intel_idle() kerneldoc comment and fix up
white space in intel_idle (Rafael Wysocki).
- Fix load_image_and_restore() error path (Ye Bin).
- Fix typos in comments in the system wakeup hadling code (Tom Rix).
- Clean up non-kernel-doc comments in hibernation code (Jiapeng
Chong).
- Fix __setup handler error handling in system-wide suspend and
hibernation core code (Randy Dunlap).
- Add device name to suspend_report_result() (Youngjin Jang).
- Make virtual guests honour ACPI S4 hardware signature by default
(David Woodhouse).
- Block power off of a parent PM domain unless child is in deepest
state (Ulf Hansson).
- Use dev_err_probe() to simplify error handling for generic PM
domains (Ahmad Fatoum).
- Fix sleep-in-atomic bug caused by genpd_debug_remove() (Shawn Guo).
- Document Intel uncore frequency scaling (Srinivas Pandruvada).
- Add DTPM hierarchy description (Daniel Lezcano).
- Change the locking scheme in DTPM (Daniel Lezcano).
- Fix dtpm_cpu cleanup at exit time and missing virtual DTPM pointer
release (Daniel Lezcano).
- Make dtpm_node_callback[] static (kernel test robot).
- Fix spelling mistake "initialze" -> "initialize" in
dtpm_create_hierarchy() (Colin Ian King).
- Add tracer tool for the amd-pstate driver (Jinzhou Su).
- Fix PC6 displaying in turbostat on some systems (Artem Bityutskiy).
- Add AMD P-State support to the cpupower utility (Huang Rui)"
* tag 'pm-5.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (58 commits)
cpufreq: powernow-k8: Re-order the init checks
cpuidle: intel_idle: Drop redundant backslash at line end
cpuidle: intel_idle: Update intel_idle() kerneldoc comment
PM: hibernate: Honour ACPI hardware signature by default for virtual guests
cpufreq: intel_pstate: Use firmware default EPP
cpufreq: unify show() and store() naming and use __ATTR_XX
PM: core: keep irq flags in device_pm_check_callbacks()
cpuidle: haltpoll: Call cpuidle_poll_state_init() later
Documentation: amd-pstate: add tracer tool introduction
tools/power/x86/amd_pstate_tracer: Add tracer tool for AMD P-state
tools/power/x86/intel_pstate_tracer: make tracer as a module
cpufreq: amd-pstate: Add more tracepoint for AMD P-State module
PM: sleep: Add device name to suspend_report_result()
turbostat: fix PC6 displaying on some systems
intel_idle: add core C6 optimization for SPR
intel_idle: add 'preferred_cstates' module argument
intel_idle: add SPR support
PM: runtime: Have devm_pm_runtime_enable() handle pm_runtime_dont_use_autosuspend()
ACPI: processor idle: Check for architectural support for LPI
cpuidle: PSCI: Move the `has_lpi` check to the beginning of the function
...
|
||
|
Linus Torvalds
|
242ba6656d |
ACPI updates for 5.18-rc1
- Use uintptr_t and offsetof() in the ACPICA code to avoid compiler
warnings regarding NULL pointer arithmetic (Rafael Wysocki).
- Fix possible NULL pointer dereference in acpi_ns_walk_namespace()
when passed "acpi=off" in the command line (Rafael Wysocki).
- Fix and clean up acpi_os_read/write_port() (Rafael Wysocki).
- Introduce acpi_bus_for_each_dev() and use it for walking all ACPI
device objects in the Type C code (Rafael Wysocki).
- Fix the _OSC platform capabilities negotioation and prevent CPPC
from being used if the platform firmware indicates that it not
supported via _OSC (Rafael Wysocki).
- Use ida_alloc() instead of ida_simple_get() for ACPI enumeration
of devices (Rafael Wysocki).
- Add AGDI and CEDT to the list of known ACPI table signatures (Ilkka
Koskinen, Robert Kiraly).
- Add power management debug messages related to suspend-to-idle in
two places (Rafael Wysocki).
- Fix __acpi_node_get_property_reference() return value and clean up
that function (Andy Shevchenko, Sakari Ailus).
- Fix return value of the __setup handler in the ACPI PM timer clock
source driver (Randy Dunlap).
- Clean up double words in two comments (Tom Rix).
- Add "skip i2c clients" quirks for Lenovo Yoga Tablet 1050F/L and
Nextbook Ares 8 (Hans de Goede).
- Clean up frequency invariance handling on x86 in the ACPI CPPC
library (Huang Rui).
- Work around broken XSDT on the Advantech DAC-BJ01 board (Mark
Cilissen).
- Make wakeup events checks in the ACPI EC driver more
straightforward and clean up acpi_ec_submit_event() (Rafael
Wysocki).
- Make it possible to obtain the CPU capacity with the help of CPPC
information (Ionela Voinescu).
- Improve fine grained fan control in the ACPI fan driver and
document it (Srinivas Pandruvada).
- Add device HID and quirk for Microsoft Surface Go 3 to the ACPI
battery driver (Maximilian Luz).
- Make the ACPI driver for Intel SoCs (LPSS) let the SPI driver know
the exact type of the controller (Andy Shevchenko).
- Force native backlight mode on Clevo NL5xRU and NL5xNU (Werner
Sembach).
- Fix return value of __setup handlers in the APEI code (Randy
Dunlap).
- Add Arm Generic Diagnostic Dump and Reset device driver (Ilkka
Koskinen).
- Limit printable size of BERT table data (Darren Hart).
- Fix up HEST and GHES initialization (Shuai Xue).
- Update the ACPI device enumeration documentation and unify the ASL
style in GPIO-related examples (Andy Shevchenko).
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Merge tag 'acpi-5.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull ACPI updates from Rafael Wysocki:
"From the new functionality perspective, the most significant items
here are the new driver for the 'ARM Generic Diagnostic Dump and
Reset' device, the extension of fine grain fan control in the ACPI fan
driver, and the change making it possible to use CPPC information to
obtain CPU capacity.
There are also a few new quirks, a bunch of fixes, including the
platform-level _OSC handling change to make it actually take the
platform firmware response into account, some code and documentation
cleanups, and a notable update of the ACPI device enumeration
documentation.
Specifics:
- Use uintptr_t and offsetof() in the ACPICA code to avoid compiler
warnings regarding NULL pointer arithmetic (Rafael Wysocki).
- Fix possible NULL pointer dereference in acpi_ns_walk_namespace()
when passed "acpi=off" in the command line (Rafael Wysocki).
- Fix and clean up acpi_os_read/write_port() (Rafael Wysocki).
- Introduce acpi_bus_for_each_dev() and use it for walking all ACPI
device objects in the Type C code (Rafael Wysocki).
- Fix the _OSC platform capabilities negotioation and prevent CPPC
from being used if the platform firmware indicates that it not
supported via _OSC (Rafael Wysocki).
- Use ida_alloc() instead of ida_simple_get() for ACPI enumeration of
devices (Rafael Wysocki).
- Add AGDI and CEDT to the list of known ACPI table signatures (Ilkka
Koskinen, Robert Kiraly).
- Add power management debug messages related to suspend-to-idle in
two places (Rafael Wysocki).
- Fix __acpi_node_get_property_reference() return value and clean up
that function (Andy Shevchenko, Sakari Ailus).
- Fix return value of the __setup handler in the ACPI PM timer clock
source driver (Randy Dunlap).
- Clean up double words in two comments (Tom Rix).
- Add "skip i2c clients" quirks for Lenovo Yoga Tablet 1050F/L and
Nextbook Ares 8 (Hans de Goede).
- Clean up frequency invariance handling on x86 in the ACPI CPPC
library (Huang Rui).
- Work around broken XSDT on the Advantech DAC-BJ01 board (Mark
Cilissen).
- Make wakeup events checks in the ACPI EC driver more
straightforward and clean up acpi_ec_submit_event() (Rafael
Wysocki).
- Make it possible to obtain the CPU capacity with the help of CPPC
information (Ionela Voinescu).
- Improve fine grained fan control in the ACPI fan driver and
document it (Srinivas Pandruvada).
- Add device HID and quirk for Microsoft Surface Go 3 to the ACPI
battery driver (Maximilian Luz).
- Make the ACPI driver for Intel SoCs (LPSS) let the SPI driver know
the exact type of the controller (Andy Shevchenko).
- Force native backlight mode on Clevo NL5xRU and NL5xNU (Werner
Sembach).
- Fix return value of __setup handlers in the APEI code (Randy
Dunlap).
- Add Arm Generic Diagnostic Dump and Reset device driver (Ilkka
Koskinen).
- Limit printable size of BERT table data (Darren Hart).
- Fix up HEST and GHES initialization (Shuai Xue).
- Update the ACPI device enumeration documentation and unify the ASL
style in GPIO-related examples (Andy Shevchenko)"
* tag 'acpi-5.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (52 commits)
clocksource: acpi_pm: fix return value of __setup handler
ACPI: bus: Avoid using CPPC if not supported by firmware
Revert "ACPI: Pass the same capabilities to the _OSC regardless of the query flag"
ACPI: video: Force backlight native for Clevo NL5xRU and NL5xNU
arm64, topology: enable use of init_cpu_capacity_cppc()
arch_topology: obtain cpu capacity using information from CPPC
x86, ACPI: rename init_freq_invariance_cppc() to arch_init_invariance_cppc()
ACPI: AGDI: Add driver for Arm Generic Diagnostic Dump and Reset device
ACPI: tables: Add AGDI to the list of known table signatures
ACPI/APEI: Limit printable size of BERT table data
ACPI: docs: gpio-properties: Unify ASL style for GPIO examples
ACPI / x86: Work around broken XSDT on Advantech DAC-BJ01 board
ACPI: APEI: fix return value of __setup handlers
x86/ACPI: CPPC: Move init_freq_invariance_cppc() into x86 CPPC
x86: Expose init_freq_invariance() to topology header
x86/ACPI: CPPC: Move AMD maximum frequency ratio setting function into x86 CPPC
x86/ACPI: CPPC: Rename cppc_msr.c to cppc.c
ACPI / x86: Add skip i2c clients quirk for Lenovo Yoga Tablet 1050F/L
ACPI / x86: Add skip i2c clients quirk for Nextbook Ares 8
ACPICA: Avoid walking the ACPI Namespace if it is not there
...
|
||
|
Linus Torvalds
|
bba90e0964 |
Core code updates:
- Reduce the amount of work to release a task stack in context
switch. There is no real reason to do cgroup accounting and memory
freeing in this performance sensitive context. Aside of this the
invoked functions cannot be called from this preemption disabled
context on PREEMPT_RT enabled kernels. Solve this by moving the
accounting into do_exit() and delaying the freeing of the stack unless
the vmap stack can be cached.
- Provide a mechanism to delay raising signals from atomic context on
PREEMPT_RT enabled kernels as sighand::lock cannot be acquired. Store
the information in the task struct and raise it in the exit path.
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Merge tag 'core-core-2022-03-21' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull core process handling RT latency updates from Thomas Gleixner:
- Reduce the amount of work to release a task stack in context switch.
There is no real reason to do cgroup accounting and memory freeing in
this performance sensitive context.
Aside of this the invoked functions cannot be called from this
preemption disabled context on PREEMPT_RT enabled kernels. Solve this
by moving the accounting into do_exit() and delaying the freeing of
the stack unless the vmap stack can be cached.
- Provide a mechanism to delay raising signals from atomic context on
PREEMPT_RT enabled kernels as sighand::lock cannot be acquired. Store
the information in the task struct and raise it in the exit path.
* tag 'core-core-2022-03-21' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
signal, x86: Delay calling signals in atomic on RT enabled kernels
fork: Use IS_ENABLED() in account_kernel_stack()
fork: Only cache the VMAP stack in finish_task_switch()
fork: Move task stack accounting to do_exit()
fork: Move memcg_charge_kernel_stack() into CONFIG_VMAP_STACK
fork: Don't assign the stack pointer in dup_task_struct()
fork, IA64: Provide alloc_thread_stack_node() for IA64
fork: Duplicate task_struct before stack allocation
fork: Redo ifdefs around task stack handling
|
||
|
Linus Torvalds
|
3fd33273a4 |
Reenable ENQCMD/PASID support:
- Simplify the PASID handling to allocate the PASID once, associate it to
the mm of a process and free it on mm_exit(). The previous attempt of
refcounted PASIDs and dynamic alloc()/free() turned out to be error
prone and too complex. The PASID space is 20bits, so the case of
resource exhaustion is a pure academic concern.
- Populate the PASID MSR on demand via #GP to avoid racy updates via IPIs.
- Reenable ENQCMD and let objtool check for the forbidden usage of ENQCMD
in the kernel.
- Update the documentation for Shared Virtual Addressing accordingly.
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Merge tag 'x86-pasid-2022-03-21' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 PASID support from Thomas Gleixner:
"Reenable ENQCMD/PASID support:
- Simplify the PASID handling to allocate the PASID once, associate
it to the mm of a process and free it on mm_exit().
The previous attempt of refcounted PASIDs and dynamic
alloc()/free() turned out to be error prone and too complex. The
PASID space is 20bits, so the case of resource exhaustion is a pure
academic concern.
- Populate the PASID MSR on demand via #GP to avoid racy updates via
IPIs.
- Reenable ENQCMD and let objtool check for the forbidden usage of
ENQCMD in the kernel.
- Update the documentation for Shared Virtual Addressing accordingly"
* tag 'x86-pasid-2022-03-21' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
Documentation/x86: Update documentation for SVA (Shared Virtual Addressing)
tools/objtool: Check for use of the ENQCMD instruction in the kernel
x86/cpufeatures: Re-enable ENQCMD
x86/traps: Demand-populate PASID MSR via #GP
sched: Define and initialize a flag to identify valid PASID in the task
x86/fpu: Clear PASID when copying fpstate
iommu/sva: Assign a PASID to mm on PASID allocation and free it on mm exit
kernel/fork: Initialize mm's PASID
iommu/ioasid: Introduce a helper to check for valid PASIDs
mm: Change CONFIG option for mm->pasid field
iommu/sva: Rename CONFIG_IOMMU_SVA_LIB to CONFIG_IOMMU_SVA
|
||
|
Linus Torvalds
|
eaa54b1458 |
- Remove a misleading message and an unused function
-----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEzv7L6UO9uDPlPSfHEsHwGGHeVUoFAmI4l6UACgkQEsHwGGHe VUonRw/7BQUx2A8O6mMtQDGzDVJlKobKb/6t+VhmdrC7YHUbMjgl8+Q9EjZIGkE4 EF3Wb/5gUmnVhWzB2y5veE1mX4wlcXs0HyGL5iSn7X4UYxpPLdCSTcAriyj6I/0F fId9aTcb9dbiXGnK4F+tBRVphoe2uLCJUAdbNoprOBWUsmIjKaMewl+sLg8m1+f5 mtTY83koAtblSCtkUP/sLx/1RM+LO2uep11W20m44eRXkc8CJ3mOiMoLwCZGyyaM 66y/6i2QqPCWEUE8VUklrEM+gI/vGn1yb6DJo465aauHFabteYaiTa0kAiZ+xyOn UlybAhL2nJlkCJ+mt2+FNujdvJu2z8MGNTuQPgI0CeYlRllGuvvNfkpP6PLhqE+c HUfNbmJgB163c3w8QOlppkmCImiup+wtm8r3w4h0brD68sqnRv1AkXp83hC4MBNP k1/S/3GCLOFjq6LHvZJycq8r1NpbNPKGNq81kjNKobfWZHX3fEclVGJGjiDkJQhC VA4hCtIUnpagpMHwPHZ9fdHROHWCDJjLaEY5L/qiGnrBJPfwVpbmRv86k8kE+hJu IgoqRF1DSWMlhg3lNKGnoodTvgrWJM/HZgp/exrY0/N83AMatcWmaAlwWkrGQpGY HdnSKzXSHIwLFlf7WiVCoUDpRU4zRZzUUFm3mMqgdAJV8mwufsA= =EF36 -----END PGP SIGNATURE----- Merge tag 'x86_cleanups_for_v5.18_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull x86 cleanups from Borislav Petkov: - Remove a misleading message and an unused function * tag 'x86_cleanups_for_v5.18_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/nmi: Remove the 'strange power saving mode' hint from unknown NMI handler x86/pat: Remove the unused set_pages_array_wt() function |
||
|
Linus Torvalds
|
6b9bfb1365 |
- Add shared confidential computing code which will be used by both
vendors instead of proliferating home-grown solutions for technologies
which are pretty similar
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Merge tag 'x86_cc_for_v5.18_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 confidential computing updates from Borislav Petkov:
- Add shared confidential computing code which will be used by both
vendors instead of proliferating home-grown solutions for
technologies (SEV/SNP and TDX) which are pretty similar
* tag 'x86_cc_for_v5.18_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/mm/cpa: Generalize __set_memory_enc_pgtable()
x86/coco: Add API to handle encryption mask
x86/coco: Explicitly declare type of confidential computing platform
x86/cc: Move arch/x86/{kernel/cc_platform.c => coco/core.c}
|
||
|
Linus Torvalds
|
88f30ac227 |
- Add a missing function section annotation
-----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEzv7L6UO9uDPlPSfHEsHwGGHeVUoFAmI4VSgACgkQEsHwGGHe VUr2ew/9HyXJu2Yp39Gd/UVz/pAGpnlkw+d57lGTeQ2MilvSmJ6t5pE+F6XQ6qX9 jRzi5VOpWRSNQ6YzZHiVXCdgL49kNvJQTpnDXDsdcYn7zxynSp1d1G7YfJpI0eC2 9dho37eLnoXDY0RsATYiZsN0v1tD92WktYVgUPMZBUj6jysNZK8FeBOkyEhJLaUu LiFwET7A+Odg3ioek34v4mbGJ0pTobHOxF125b+Rq/wHKu3LjKGvj/tiYdTh32oo R0HgSszEQBfPn5lfjw1YodDTS3N4BvhWQZwlOdMr8GwlgynVnBC381PSObRVpPT1 nKQizDnyE0YKHPn0Mq58vN92D+ulmfS58vDCotRYHSUwwuUXDt2klr/y62e4Vh90 cWlWxzojrj8Dta44ofw87oESJfu5jJ7zQmeMKSjuud3CLsaqkPKcwXsiBwgV5glu MA9QBfnbRjoXr9CkDcii17K3S5udY3pfkNSE9P6J+GwBgfOLVeE91WLaGDc3wChf tC9bLlV5F71gCpoZYSBdCKsVaV+8ZHeHjH9UTmkGH9zxKEkP0HEdxBSkL4uLhrCt NcU/Xt57O/SrzVu23XPufbI52PanGYHs7kNl1NNLthaIXgg43Mtx+c5rI0uWOFK7 4vFbJEtCvqOBEnVHpPjiUHH30ihSnx6D8N13trOdu67NtUXrxPc= =PVnz -----END PGP SIGNATURE----- Merge tag 'x86_sev_for_v5.18_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull x86 SEV fix from Borislav Petkov: - Add a missing function section annotation * tag 'x86_sev_for_v5.18_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/head64: Add missing __head annotation to sme_postprocess_startup() |
||
|
Linus Torvalds
|
35cbdaf753 |
- Shorten CALL insns to pvops by a byte by using rip-relative addressing
-----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEzv7L6UO9uDPlPSfHEsHwGGHeVUoFAmI4VFoACgkQEsHwGGHe VUr8Sg//V1SAfIOwOxveO9nPsyGwopeAHOm/6x87SSs18qDzYUGAGiTwfzXBqKqn gan8wSBVnsbK2gqF8ecCFUzYnJhjqzvnXvFwUmWpdN5zePz0YDSgm6LQy9FPj6Fq l7X8GV4zG1FiDw+4dGaus2FqVnpwyjTY9oT0/X9GBxCGXXDFvcZOm8++N09mo0rZ K4Ot6vYzY426HpBv3RWdIutSbBDDX4yMUPi1X4PQVotmb5aZljyQrmn5kllg+9uI R6ScXT616pbyGh/iDMaQ2L36Y/TYSg5sAFtkGaYQUAYLrCnwuEKEuFETwm393xxH ki/bf9F+kuimp4tjMIBJLZFCeHQ3aC7yuX+lLrrMuTAz5hnARWX+Xxf05+TwbRLI RaMx7HzoiaB5vQHJqXeNiJgVZPYR7rIvJNm7PLs1o3EK0kFTSpjL1ZTUg91H2LsF FZQobm46LxVORU3B9YSRxv3c0BB7idA4uvRNt55b6MxcfU75f7hHzXoFGiXtL/4G nfG/RAuMHUAKpH/FHyt5tVA7Tc+jRB3YizTKjIeUjPAJMnEtBnkC4yggVINOYewO uIXMb3gq5jwICuklY8nTvBClmzsdOTL9ZCogFKzifBFokvpDVcoGQ6lQZn7y3Dya p0KHxBwJ4a84jkR18fwW6kb7jW6lPYi88Yn0a7ReqDoabbDUxps= =djLR -----END PGP SIGNATURE----- Merge tag 'x86_paravirt_for_v5.18_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull x86 paravirt improvement from Borislav Petkov: - Shorten CALL insns to pvops by a byte by using rip-relative addressing * tag 'x86_paravirt_for_v5.18_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/paravirt: Use %rip-relative addressing in hook calls |
||
|
Linus Torvalds
|
e10821b8a0 |
- Correct Kconfig symbol visibility on x86
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||
|
Linus Torvalds
|
2268735045 |
- Add support for a couple new insn sets to the insn decoder: AVX512-FP16,
AMX, other misc insns. - Update VMware-specific MAINTAINERS entries -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEzv7L6UO9uDPlPSfHEsHwGGHeVUoFAmI4URIACgkQEsHwGGHe VUob3A/9GFyqt9bBKrSaq9Rt1UVkq6dQhG3kO7dW5d0YDvy8JmR9is4rNDV9GGx6 A1OAue/gDlZFIz/829oS1qwjB7GZ4Rfb0gRo33bytDLLmd0BRXW7ioZ54jBRnWvy 8dZ2WruMmazK6uJxoHvtOA+Pt3ukb074CZZ1SfW344clWK6FJZeptyRclWaT1Py2 QOIJOxMraCdNAay/1ZvOdIqqdIPx5+JyzbHIYOWUFzwT4y+Q8kFNbigrJnqxe5Ij aqRjzMIvt6MeLwbq9CfLsPFA3gaSzYeOkuXQPcqRgd5LU5ZyXBLStUrGEv1fsMvd 9Kh7VFycZPS7MKzxoEcbuJTTOR4cBsINOlbo9iWr7UD5pm5h7c3vc+nCyia+U+Xo 5XRpf8nitt4a3r1f6HxwXJS0OlBkS4CqexE2OejY4yhWRlxhMcIvRyquU+Z0J4Bp mgDJuXSzfJfFcBzp4jjOBxGPNEjXXOdy/qc/1jR97eMmTKrk3gk/74NWUx9hw4oN 5RGeC+khAD13TL0yVQfKBe5HuLK5tHppAzXAnT2xi6qUn+VJjLxNWgg3iV9tbShM 4q5vJp3BmvNOY8HQv1R3IDFfN0IAL09Q9v6EzEroNuVUhEOzBdH7JSzWkvBBveZb FVgD3I+wNBE1nQD3cP/6DGbRe1JG3ULDF95WJshB8gNJwavlZGs= =f7VZ -----END PGP SIGNATURE----- Merge tag 'x86_misc_for_v5.18_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull misc x86 updates from Borislav Petkov: - Add support for a couple new insn sets to the insn decoder: AVX512-FP16, AMX, other misc insns. - Update VMware-specific MAINTAINERS entries * tag 'x86_misc_for_v5.18_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: MAINTAINERS: Mark VMware mailing list entries as email aliases MAINTAINERS: Add Zack as maintainer of vmmouse driver MAINTAINERS: Update maintainers for paravirt ops and VMware hypervisor interface x86/insn: Add AVX512-FP16 instructions to the x86 instruction decoder perf/tests: Add AVX512-FP16 instructions to x86 instruction decoder test x86/insn: Add misc instructions to x86 instruction decoder perf/tests: Add misc instructions to the x86 instruction decoder test x86/insn: Add AMX instructions to the x86 instruction decoder perf/tests: Add AMX instructions to x86 instruction decoder test |
||
|
Linus Torvalds
|
d752e21114 |
- Merge the AMD and Intel PPIN code into a shared one by both vendors.
Add the PPIN number to sysfs so that sockets can be identified when replacement is needed - Minor fixes and cleanups -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEzv7L6UO9uDPlPSfHEsHwGGHeVUoFAmI4UBcACgkQEsHwGGHe VUoDQw/9E2WVsLS+iVngYI5hY+LQbbeOLPt9sqgdf8U/4tQPwJfAKYRALQ3FvjbJ XKEqcHoCIBH0XQSC0TPpBF96VABr5Vrc/knV8x2OWJ82p54beB0rXh5mdsnsrVMQ 7Gi00iEgZ1kw7TwRN7rMzUpudNOr7C/SSQL535hyZA4NT9QkNBObZWHMnojVnEmr AW1TY54xXSpu7xDY5ari5NGeSgvu1PIsCy0EKMK/SFLEpKQW4lt+lUe1aSieMarj xgnfIyGW3SUbadwlvLbIqVpR0RQBDLTabx8nyXnJAVZlwuAfioRUGL+Z4GFA0Y7q uDofxuScBAea3sPPFAAIoh13y595TjowBX7pHA1sqjWLmFKt6Qqz5dq1uBVEvIYw uTAQ/igJ4N2jq03jwnAw1LUAES5azSseCsiQxR7oqzK9KaRlptxHTAqhjqsgpIp4 VLdYtgkzOEFiOsWsHWP1Dd+vzpMvTh5gtTXZuVcldo2D6scdcj+oaloHQ5XMiFu1 GKuyiY4EbkRcp9ZQ847xOn4knEg+aq9zL0tJoWWEMKfRQn6425TEOLqkIdc9QfeU t63yqJ1q3NTjjzxzy/FdKwdoyOOQxeDl5YGPX3gZnj9X/0wgs+dHRmKp0o74SIg9 4h2kB69wRwn6rC09P2UkQVGpDL0mnif4ZAh61vRE+mS0zSNCkEA= =MWVZ -----END PGP SIGNATURE----- Merge tag 'x86_cpu_for_v5.18_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull x86 cpu feature updates from Borislav Petkov: - Merge the AMD and Intel PPIN code into a shared one by both vendors. Add the PPIN number to sysfs so that sockets can be identified when replacement is needed - Minor fixes and cleanups * tag 'x86_cpu_for_v5.18_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/cpu: Clear SME feature flag when not in use x86/cpufeatures: Put the AMX macros in the word 18 block topology/sysfs: Add PPIN in sysfs under cpu topology topology/sysfs: Add format parameter to macro defining "show" functions for proc x86/cpu: Read/save PPIN MSR during initialization x86/cpu: X86_FEATURE_INTEL_PPIN finally has a CPUID bit x86/cpu: Merge Intel and AMD ppin_init() functions x86/CPU/AMD: Use default_groups in kobj_type |
||
|
Linus Torvalds
|
356a1adca8 |
arm64 updates for 5.18
- Support for including MTE tags in ELF coredumps
- Instruction encoder updates, including fixes to 64-bit immediate
generation and support for the LSE atomic instructions
- Improvements to kselftests for MTE and fpsimd
- Symbol aliasing and linker script cleanups
- Reduce instruction cache maintenance performed for user mappings
created using contiguous PTEs
- Support for the new "asymmetric" MTE mode, where stores are checked
asynchronously but loads are checked synchronously
- Support for the latest pointer authentication algorithm ("QARMA3")
- Support for the DDR PMU present in the Marvell CN10K platform
- Support for the CPU PMU present in the Apple M1 platform
- Use the RNDR instruction for arch_get_random_{int,long}()
- Update our copy of the Arm optimised string routines for str{n}cmp()
- Fix signal frame generation for CPUs which have foolishly elected to
avoid building in support for the fpsimd instructions
- Workaround for Marvell GICv3 erratum #38545
- Clarification to our Documentation (booting reqs. and MTE prctl())
- Miscellanous cleanups and minor fixes
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Merge tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux
Pull arm64 updates from Will Deacon:
- Support for including MTE tags in ELF coredumps
- Instruction encoder updates, including fixes to 64-bit immediate
generation and support for the LSE atomic instructions
- Improvements to kselftests for MTE and fpsimd
- Symbol aliasing and linker script cleanups
- Reduce instruction cache maintenance performed for user mappings
created using contiguous PTEs
- Support for the new "asymmetric" MTE mode, where stores are checked
asynchronously but loads are checked synchronously
- Support for the latest pointer authentication algorithm ("QARMA3")
- Support for the DDR PMU present in the Marvell CN10K platform
- Support for the CPU PMU present in the Apple M1 platform
- Use the RNDR instruction for arch_get_random_{int,long}()
- Update our copy of the Arm optimised string routines for str{n}cmp()
- Fix signal frame generation for CPUs which have foolishly elected to
avoid building in support for the fpsimd instructions
- Workaround for Marvell GICv3 erratum #38545
- Clarification to our Documentation (booting reqs. and MTE prctl())
- Miscellanous cleanups and minor fixes
* tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux: (90 commits)
docs: sysfs-devices-system-cpu: document "asymm" value for mte_tcf_preferred
arm64/mte: Remove asymmetric mode from the prctl() interface
arm64: Add cavium_erratum_23154_cpus missing sentinel
perf/marvell: Fix !CONFIG_OF build for CN10K DDR PMU driver
arm64: mm: Drop 'const' from conditional arm64_dma_phys_limit definition
Documentation: vmcoreinfo: Fix htmldocs warning
kasan: fix a missing header include of static_keys.h
drivers/perf: Add Apple icestorm/firestorm CPU PMU driver
drivers/perf: arm_pmu: Handle 47 bit counters
arm64: perf: Consistently make all event numbers as 16-bits
arm64: perf: Expose some Armv9 common events under sysfs
perf/marvell: cn10k DDR perf event core ownership
perf/marvell: cn10k DDR perfmon event overflow handling
perf/marvell: CN10k DDR performance monitor support
dt-bindings: perf: marvell: cn10k ddr performance monitor
arm64: clean up tools Makefile
perf/arm-cmn: Update watchpoint format
perf/arm-cmn: Hide XP PUB events for CMN-600
arm64: drop unused includes of <linux/personality.h>
arm64: Do not defer reserve_crashkernel() for platforms with no DMA memory zones
...
|
||
Kees Cook
|
c7500c1b53 |
um: Allow builds with Clang
Add SUBARCH target for Clang+um (which must go last, not alphabetically,
so the other SUBARCHes are assigned). Remove open-coded "DEFINE"
macro, instead using linux/kbuild.h's version which was updated to use
Clang-friendly assembly in commit
|
||
|
Paolo Bonzini
|
c9b8fecddb |
KVM: use kvcalloc for array allocations
Instead of using array_size, use a function that takes care of the multiplication. While at it, switch to kvcalloc since this allocation should not be very large. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> |
||
Oliver Upton
|
6d8491910f |
KVM: x86: Introduce KVM_CAP_DISABLE_QUIRKS2
KVM_CAP_DISABLE_QUIRKS is irrevocably broken. The capability does not advertise the set of quirks which may be disabled to userspace, so it is impossible to predict the behavior of KVM. Worse yet, KVM_CAP_DISABLE_QUIRKS will tolerate any value for cap->args[0], meaning it fails to reject attempts to set invalid quirk bits. The only valid workaround for the quirky quirks API is to add a new CAP. Actually advertise the set of quirks that can be disabled to userspace so it can predict KVM's behavior. Reject values for cap->args[0] that contain invalid bits. Finally, add documentation for the new capability and describe the existing quirks. Signed-off-by: Oliver Upton <oupton@google.com> Message-Id: <20220301060351.442881-5-oupton@google.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> |
||
|
Thomas Gleixner
|
5e17b2ee45 |
kvm: x86: Require const tsc for RT
Non constant TSC is a nightmare on bare metal already, but with virtualization it becomes a complete disaster because the workarounds are horrible latency wise. That's also a preliminary for running RT in a guest on top of a RT host. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Message-Id: <Yh5eJSG19S2sjZfy@linutronix.de> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> |
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Paolo Bonzini
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f144c49e8c |
KVM: x86: synthesize CPUID leaf 0x80000021h if useful
Guests X86_BUG_NULL_SEG if and only if the host has them. Use the info from static_cpu_has_bug to form the 0x80000021 CPUID leaf that was defined for Zen3. Userspace can then set the bit even on older CPUs that do not have the bug, such as Zen2. Do the same for X86_FEATURE_LFENCE_RDTSC as well, since various processors have had very different ways of detecting it and not all of them are available to userspace. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> |
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Paolo Bonzini
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58b3d12c0a |
KVM: x86: add support for CPUID leaf 0x80000021
CPUID leaf 0x80000021 defines some features (or lack of bugs) of AMD processors. Expose the ones that make sense via KVM_GET_SUPPORTED_CPUID. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> |
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Maxim Levitsky
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bf07be36cd |
KVM: x86: do not use KVM_X86_OP_OPTIONAL_RET0 for get_mt_mask
KVM_X86_OP_OPTIONAL_RET0 can only be used with 32-bit return values on 32-bit systems, because unsigned long is only 32-bits wide there and 64-bit values are returned in edx:eax. Reported-by: Maxim Levitsky <mlevitsk@redhat.com> Signed-off-by: Maxim Levitsky <mlevitsk@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> |
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Paolo Bonzini
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873dd12217 |
Revert "KVM: x86/mmu: Zap only TDP MMU leafs in kvm_zap_gfn_range()"
This reverts commit
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Paolo Bonzini
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fcb93eb6d0 |
kvm: x86/mmu: Flush TLB before zap_gfn_range releases RCU
Since "KVM: x86/mmu: Zap only TDP MMU leafs in kvm_zap_gfn_range()" is going to be reverted, it's not going to be true anymore that the zap-page flow does not free any 'struct kvm_mmu_page'. Introduce an early flush before tdp_mmu_zap_leafs() returns, to preserve bisectability. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> |
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Borislav Petkov
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fe83f5eae4 |
kvm/emulate: Fix SETcc emulation function offsets with SLS
The commit in Fixes started adding INT3 after RETs as a mitigation
against straight-line speculation.
The fastop SETcc implementation in kvm's insn emulator uses macro magic
to generate all possible SETcc functions and to jump to them when
emulating the respective instruction.
However, it hardcodes the size and alignment of those functions to 4: a
three-byte SETcc insn and a single-byte RET. BUT, with SLS, there's an
INT3 that gets slapped after the RET, which brings the whole scheme out
of alignment:
15: 0f 90 c0 seto %al
18: c3 ret
19: cc int3
1a: 0f 1f 00 nopl (%rax)
1d: 0f 91 c0 setno %al
20: c3 ret
21: cc int3
22: 0f 1f 00 nopl (%rax)
25: 0f 92 c0 setb %al
28: c3 ret
29: cc int3
and this explodes like this:
int3: 0000 [#1] PREEMPT SMP PTI
CPU: 0 PID: 2435 Comm: qemu-system-x86 Not tainted 5.17.0-rc8-sls #1
Hardware name: Dell Inc. Precision WorkStation T3400 /0TP412, BIOS A14 04/30/2012
RIP: 0010:setc+0x5/0x8 [kvm]
Code: 00 00 0f 1f 00 0f b6 05 43 24 06 00 c3 cc 0f 1f 80 00 00 00 00 0f 90 c0 c3 cc 0f \
1f 00 0f 91 c0 c3 cc 0f 1f 00 0f 92 c0 c3 cc <0f> 1f 00 0f 93 c0 c3 cc 0f 1f 00 \
0f 94 c0 c3 cc 0f 1f 00 0f 95 c0
Call Trace:
<TASK>
? x86_emulate_insn [kvm]
? x86_emulate_instruction [kvm]
? vmx_handle_exit [kvm_intel]
? kvm_arch_vcpu_ioctl_run [kvm]
? kvm_vcpu_ioctl [kvm]
? __x64_sys_ioctl
? do_syscall_64
? entry_SYSCALL_64_after_hwframe
</TASK>
Raise the alignment value when SLS is enabled and use a macro for that
instead of hard-coding naked numbers.
Fixes:
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Rafael J. Wysocki
|
31035f3e20 |
Merge branch 'thermal-hfi'
Merge Intel Hardware Feedback Interface (HFI) thermal driver for 5.18-rc1 and update the intel-speed-select utility to support that driver. * thermal-hfi: tools/power/x86/intel-speed-select: v1.12 release tools/power/x86/intel-speed-select: HFI support tools/power/x86/intel-speed-select: OOB daemon mode thermal: intel: hfi: INTEL_HFI_THERMAL depends on NET thermal: netlink: Fix parameter type of thermal_genl_cpu_capability_event() stub thermal: intel: hfi: Notify user space for HFI events thermal: netlink: Add a new event to notify CPU capabilities change thermal: intel: hfi: Enable notification interrupt thermal: intel: hfi: Handle CPU hotplug events thermal: intel: hfi: Minimally initialize the Hardware Feedback Interface x86/cpu: Add definitions for the Intel Hardware Feedback Interface x86/Documentation: Describe the Intel Hardware Feedback Interface |
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Rafael J. Wysocki
|
dfad78e07e |
Merge branches 'pm-sleep', 'pm-domains' and 'pm-docs'
Merge changes related to system sleep, PM domains changes and power management documentation changes for 5.18-rc1: - Fix load_image_and_restore() error path (Ye Bin). - Fix typos in comments in the system wakeup hadling code (Tom Rix). - Clean up non-kernel-doc comments in hibernation code (Jiapeng Chong). - Fix __setup handler error handling in system-wide suspend and hibernation core code (Randy Dunlap). - Add device name to suspend_report_result() (Youngjin Jang). - Make virtual guests honour ACPI S4 hardware signature by default (David Woodhouse). - Block power off of a parent PM domain unless child is in deepest state (Ulf Hansson). - Use dev_err_probe() to simplify error handling for generic PM domains (Ahmad Fatoum). - Fix sleep-in-atomic bug caused by genpd_debug_remove() (Shawn Guo). - Document Intel uncore frequency scaling (Srinivas Pandruvada). * pm-sleep: PM: hibernate: Honour ACPI hardware signature by default for virtual guests PM: sleep: Add device name to suspend_report_result() PM: suspend: fix return value of __setup handler PM: hibernate: fix __setup handler error handling PM: hibernate: Clean up non-kernel-doc comments PM: sleep: wakeup: Fix typos in comments PM: hibernate: fix load_image_and_restore() error path * pm-domains: PM: domains: Fix sleep-in-atomic bug caused by genpd_debug_remove() PM: domains: use dev_err_probe() to simplify error handling PM: domains: Prevent power off for parent unless child is in deepest state * pm-docs: Documentation: admin-guide: pm: Document uncore frequency scaling |
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Rafael J. Wysocki
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24b2b094b5 |
Merge branches 'acpi-ec', 'acpi-cppc', 'acpi-fan' and 'acpi-battery'
Merge ACPI EC driver changes, CPPC-related changes, ACPI fan driver changes and ACPI battery driver changes for 5.18-rc1: - Make wakeup events checks in the ACPI EC driver more straightforward and clean up acpi_ec_submit_event() (Rafael Wysocki). - Make it possible to obtain the CPU capacity with the help of CPPC information (Ionela Voinescu). - Improve fine grained fan control in the ACPI fan driver and document it (Srinivas Pandruvada). - Add device HID and quirk for Microsoft Surface Go 3 to the ACPI battery driver (Maximilian Luz). * acpi-ec: ACPI: EC: Rearrange code in acpi_ec_submit_event() ACPI: EC: Reduce indentation level in acpi_ec_submit_event() ACPI: EC: Do not return result from advance_transaction() * acpi-cppc: arm64, topology: enable use of init_cpu_capacity_cppc() arch_topology: obtain cpu capacity using information from CPPC x86, ACPI: rename init_freq_invariance_cppc() to arch_init_invariance_cppc() * acpi-fan: Documentation/admin-guide/acpi: Add documentation for fine grain control ACPI: fan: Add additional attributes for fine grain control ACPI: fan: Properly handle fine grain control ACPI: fan: Optimize struct acpi_fan_fif ACPI: fan: Separate file for attributes creation ACPI: fan: Fix error reporting to user space * acpi-battery: ACPI: battery: Add device HID and quirk for Microsoft Surface Go 3 |
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Rafael J. Wysocki
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03d5c98d91 |
Merge branches 'acpi-pm', 'acpi-properties', 'acpi-misc' and 'acpi-x86'
Merge ACPI power management changes, ACPI device properties handling changes, x86-specific ACPI changes and miscellaneous ACPI changes for 5.18-rc1: - Add power management debug messages related to suspend-to-idle in two places (Rafael Wysocki). - Fix __acpi_node_get_property_reference() return value and clean up that function (Andy Shevchenko, Sakari Ailus). - Fix return value of the __setup handler in the ACPI PM timer clock source driver (Randy Dunlap). - Clean up double words in two comments (Tom Rix). - Add "skip i2c clients" quirks for Lenovo Yoga Tablet 1050F/L and Nextbook Ares 8 (Hans de Goede). - Clean up frequency invariance handling on x86 in the ACPI CPPC library (Huang Rui). - Work around broken XSDT on the Advantech DAC-BJ01 board (Mark Cilissen). * acpi-pm: ACPI: EC / PM: Print additional debug message in acpi_ec_dispatch_gpe() ACPI: PM: Print additional debug message in acpi_s2idle_wake() * acpi-properties: ACPI: property: Get rid of redundant 'else' ACPI: properties: Consistently return -ENOENT if there are no more references * acpi-misc: clocksource: acpi_pm: fix return value of __setup handler ACPI: clean up double words in two comments * acpi-x86: ACPI / x86: Work around broken XSDT on Advantech DAC-BJ01 board x86/ACPI: CPPC: Move init_freq_invariance_cppc() into x86 CPPC x86: Expose init_freq_invariance() to topology header x86/ACPI: CPPC: Move AMD maximum frequency ratio setting function into x86 CPPC x86/ACPI: CPPC: Rename cppc_msr.c to cppc.c ACPI / x86: Add skip i2c clients quirk for Lenovo Yoga Tablet 1050F/L ACPI / x86: Add skip i2c clients quirk for Nextbook Ares 8 |
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Masami Hiramatsu
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75caf33eda |
rethook: x86: Add rethook x86 implementation
Add rethook for x86 implementation. Most of the code has been copied from kretprobes on x86. Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org> Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org> Tested-by: Steven Rostedt (Google) <rostedt@goodmis.org> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Link: https://lore.kernel.org/bpf/164735286243.1084943.7477055110527046644.stgit@devnote2 |
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Jakub Kicinski
|
e243f39685 |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
No conflicts. Signed-off-by: Jakub Kicinski <kuba@kernel.org> |
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Hou Tao
|
73e14451f3 |
bpf, x86: Fall back to interpreter mode when extra pass fails
Extra pass for subprog jit may fail (e.g. due to bpf_jit_harden race), but bpf_func is not cleared for the subprog and jit_subprogs will succeed. The running of the bpf program may lead to oops because the memory for the jited subprog image has already been freed. So fall back to interpreter mode by clearing bpf_func/jited/jited_len when extra pass fails. Signed-off-by: Hou Tao <houtao1@huawei.com> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Link: https://lore.kernel.org/bpf/20220309123321.2400262-2-houtao1@huawei.com |
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David Woodhouse
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f6c46b1d62 |
PM: hibernate: Honour ACPI hardware signature by default for virtual guests
The ACPI specification says that OSPM should refuse to restore from hibernate if the hardware signature changes, and should boot from scratch. However, real BIOSes often vary the hardware signature in cases where we *do* want to resume from hibernate, so Linux doesn't follow the spec by default. However, in a virtual environment there's no reason for the VMM to vary the hardware signature *unless* it wants to trigger a clean reboot as defined by the ACPI spec. So enable the check by default if a hypervisor is detected. Signed-off-by: David Woodhouse <dwmw@amazon.co.uk> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> |
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Jiri Kosina
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d4c9df20a3 |
x86/nmi: Remove the 'strange power saving mode' hint from unknown NMI handler
The Do you have a strange power saving mode enabled? hint when unknown NMI happens dates back to i386 stone age, and isn't currently really helpful. Unknown NMIs are coming for many different reasons (broken firmware, faulty hardware, ...) and rarely have anything to do with 'strange power saving mode' (whatever that even is). Just remove it as it's largerly misleading. Signed-off-by: Jiri Kosina <jkosina@suse.cz> Signed-off-by: Borislav Petkov <bp@suse.de> Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org> Link: https://lore.kernel.org/r/nycvar.YFH.7.76.2203140924120.24795@cbobk.fhfr.pm |
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Greg Kroah-Hartman
|
7f220d4a38 |
Linux 5.17-rc8
-----BEGIN PGP SIGNATURE----- iQFSBAABCAA8FiEEq68RxlopcLEwq+PEeb4+QwBBGIYFAmIuUskeHHRvcnZhbGRz QGxpbnV4LWZvdW5kYXRpb24ub3JnAAoJEHm+PkMAQRiGCFkH/2n3mpGXuITp0ZXE TNrpbdZOof5SgLw+w7THswXuo6m5yRGNKQs9fvIvDD8Vf7/OdQQfPOmF1cIE5+nk wcz6aHKbdrok8Jql2qjJqWXZ5xbGj6qywg3zZrwOUsCKFP5p+AjBJcmZOsvQHjSp ASODy1moOlK+nO52TrMaJw74a8xQPmQiNa+T2P+FedEYjlcRH/c7hLJ7GEnL6+cC /R4bATZq3tiInbTBlkC0hR0iVNgRXwXNyv9PEXrYYYHnekh8G1mgSNf06iejLcsG aAYsW9NyPxu8zPhhHNx79K9o8BMtxGD4YQpsfdfIEnf9Q3euqAKe2evRWqHHlDms RuSCtsc= =M9Nc -----END PGP SIGNATURE----- Merge tag 'v5.17-rc8' into usb-next We need the Xen USB fixes as other patches depend on those changes. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
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jianchunfu
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309b517276 |
arch:x86:xen: Remove unnecessary assignment in xen_apic_read()
In the function xen_apic_read(), the initialized value of 'ret' is unused because it will be assigned by the function HYPERVISOR_platform_op(), thus remove it. Signed-off-by: jianchunfu <jianchunfu@cmss.chinamobile.com> Link: https://lore.kernel.org/r/20220314070514.2602-1-jianchunfu@cmss.chinamobile.com Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com> Signed-off-by: Boris Ostrovsky <boris.ostrovsky@oracle.com> |
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Peter Zijlstra
|
b0ae33a2d2 |
usb: early: xhci-dbc: Remove duplicate keep parsing
The generic earlyprintk= parsing already parses the optional ",keep", no need to duplicate that in the xdbc driver. Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Link: https://lore.kernel.org/r/20220304152135.975568860@infradead.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
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Peter Zijlstra
|
69f8aeab43 |
x86/tsc: Be consistent about use_tsc_delay()
Currently loops_per_jiffy is set in tsc_early_init(), but then don't switch to delay_tsc, with the result that delay_loop is used with loops_per_jiffy set for delay_tsc. Then in (late) tsc_init() lpj_fine is set (which is mostly unused) and after which use_tsc_delay() is finally called. Move both loops_per_jiffy and use_tsc_delay() into tsc_enable_sched_clock() which is called the moment tsc_khz is determined, be it early or late. Keeping the lot consistent. Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Link: https://lore.kernel.org/r/20220304152135.914397165@infradead.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
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Ingo Molnar
|
9cea0d46f5 |
Merge branch 'x86/cpu' into x86/core, to resolve conflicts
Conflicts: arch/x86/include/asm/cpufeatures.h Signed-off-by: Ingo Molnar <mingo@kernel.org> |
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Ingo Molnar
|
8c490b42fe |
Merge branch 'x86/pasid' into x86/core, to resolve conflicts
Conflicts: tools/objtool/arch/x86/decode.c Signed-off-by: Ingo Molnar <mingo@kernel.org> |
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Nathan Chancellor
|
aaeed6ecc1 |
x86/Kconfig: Do not allow CONFIG_X86_X32_ABI=y with llvm-objcopy
There are two outstanding issues with CONFIG_X86_X32_ABI and llvm-objcopy, with similar root causes: 1. llvm-objcopy does not properly convert .note.gnu.property when going from x86_64 to x86_x32, resulting in a corrupted section when linking: https://github.com/ClangBuiltLinux/linux/issues/1141 2. llvm-objcopy produces corrupted compressed debug sections when going from x86_64 to x86_x32, also resulting in an error when linking: https://github.com/ClangBuiltLinux/linux/issues/514 After commit 41c5ef31ad71 ("x86/ibt: Base IBT bits"), the .note.gnu.property section is always generated when CONFIG_X86_KERNEL_IBT is enabled, which causes the first issue to become visible with an allmodconfig build: ld.lld: error: arch/x86/entry/vdso/vclock_gettime-x32.o:(.note.gnu.property+0x1c): program property is too short To avoid this error, do not allow CONFIG_X86_X32_ABI to be selected when using llvm-objcopy. If the two issues ever get fixed in llvm-objcopy, this can be turned into a feature check. Signed-off-by: Nathan Chancellor <nathan@kernel.org> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Link: https://lore.kernel.org/r/20220314194842.3452-3-nathan@kernel.org |
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Masahiro Yamada
|
83a44a4f47 |
x86: Remove toolchain check for X32 ABI capability
Commit
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Peter Zijlstra
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ed53a0d971 |
x86/alternative: Use .ibt_endbr_seal to seal indirect calls
Objtool's --ibt option generates .ibt_endbr_seal which lists superfluous ENDBR instructions. That is those instructions for which the function is never indirectly called. Overwrite these ENDBR instructions with a NOP4 such that these function can never be indirect called, reducing the number of viable ENDBR targets in the kernel. Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Acked-by: Josh Poimboeuf <jpoimboe@redhat.com> Link: https://lore.kernel.org/r/20220308154319.822545231@infradead.org |
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Peter Zijlstra
|
89bc853eae |
objtool: Find unused ENDBR instructions
Find all ENDBR instructions which are never referenced and stick them in a section such that the kernel can poison them, sealing the functions from ever being an indirect call target. This removes about 1-in-4 ENDBR instructions. Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Acked-by: Josh Poimboeuf <jpoimboe@redhat.com> Link: https://lore.kernel.org/r/20220308154319.763643193@infradead.org |
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Peter Zijlstra
|
3515899bef |
x86: Annotate idtentry_df()
Without CONFIG_X86_ESPFIX64 exc_double_fault() is noreturn and objtool is clever enough to figure that out. vmlinux.o: warning: objtool: asm_exc_double_fault()+0x22: unreachable instruction 0000000000001260 <asm_exc_double_fault>: 1260: f3 0f 1e fa endbr64 1264: 90 nop 1265: 90 nop 1266: 90 nop 1267: e8 84 03 00 00 call 15f0 <paranoid_entry> 126c: 48 89 e7 mov %rsp,%rdi 126f: 48 8b 74 24 78 mov 0x78(%rsp),%rsi 1274: 48 c7 44 24 78 ff ff ff ff movq $0xffffffffffffffff,0x78(%rsp) 127d: e8 00 00 00 00 call 1282 <asm_exc_double_fault+0x22> 127e: R_X86_64_PLT32 exc_double_fault-0x4 1282: e9 09 04 00 00 jmp 1690 <paranoid_exit> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Link: https://lkml.kernel.org/r/Yi9gOW9f1GGwwUD6@hirez.programming.kicks-ass.net |
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Peter Zijlstra
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dca5da2abe |
x86,objtool: Move the ASM_REACHABLE annotation to objtool.h
Because we need a variant for .S files too. Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Link: https://lkml.kernel.org/r/Yi9gOW9f1GGwwUD6@hirez.programming.kicks-ass.net |
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Peter Zijlstra
|
be0075951f |
x86: Annotate call_on_stack()
vmlinux.o: warning: objtool: page_fault_oops()+0x13c: unreachable instruction 0000 000000000005b460 <page_fault_oops>: ... 0128 5b588: 49 89 23 mov %rsp,(%r11) 012b 5b58b: 4c 89 dc mov %r11,%rsp 012e 5b58e: 4c 89 f2 mov %r14,%rdx 0131 5b591: 48 89 ee mov %rbp,%rsi 0134 5b594: 4c 89 e7 mov %r12,%rdi 0137 5b597: e8 00 00 00 00 call 5b59c <page_fault_oops+0x13c> 5b598: R_X86_64_PLT32 handle_stack_overflow-0x4 013c 5b59c: 5c pop %rsp vmlinux.o: warning: objtool: sysvec_reboot()+0x6d: unreachable instruction 0000 00000000000033f0 <sysvec_reboot>: ... 005d 344d: 4c 89 dc mov %r11,%rsp 0060 3450: e8 00 00 00 00 call 3455 <sysvec_reboot+0x65> 3451: R_X86_64_PLT32 irq_enter_rcu-0x4 0065 3455: 48 89 ef mov %rbp,%rdi 0068 3458: e8 00 00 00 00 call 345d <sysvec_reboot+0x6d> 3459: R_X86_64_PC32 .text+0x47d0c 006d 345d: e8 00 00 00 00 call 3462 <sysvec_reboot+0x72> 345e: R_X86_64_PLT32 irq_exit_rcu-0x4 0072 3462: 5c pop %rsp Both cases are due to a call_on_stack() calling a __noreturn function. Since that's an inline asm, GCC can't do anything about the instructions after the CALL. Therefore put in an explicit ASM_REACHABLE annotation to make sure objtool and gcc are consistently confused about control flow. Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Acked-by: Josh Poimboeuf <jpoimboe@redhat.com> Link: https://lore.kernel.org/r/20220308154319.468805622@infradead.org |
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Peter Zijlstra
|
f9cdf7ca57 |
x86: Mark stop_this_cpu() __noreturn
vmlinux.o: warning: objtool: smp_stop_nmi_callback()+0x2b: unreachable instruction 0000 0000000000047cf0 <smp_stop_nmi_callback>: ... 0026 47d16: e8 00 00 00 00 call 47d1b <smp_stop_nmi_callback+0x2b> 47d17: R_X86_64_PLT32 stop_this_cpu-0x4 002b 47d1b: b8 01 00 00 00 mov $0x1,%eax Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Acked-by: Josh Poimboeuf <jpoimboe@redhat.com> Link: https://lore.kernel.org/r/20220308154319.290905453@infradead.org |
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Peter Zijlstra
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2b6ff7dea6 |
x86/ibt: Dont generate ENDBR in .discard.text
Having ENDBR in discarded sections can easily lead to relocations into discarded sections which the linkers aren't really fond of. Objtool also shouldn't generate them, but why tempt fate. Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Acked-by: Josh Poimboeuf <jpoimboe@redhat.com> Link: https://lore.kernel.org/r/20220308154319.054842742@infradead.org |
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Peter Zijlstra
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e8d61bdf0f |
x86/ibt,sev: Annotations
No IBT on AMD so far.. probably correct, who knows. Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Acked-by: Josh Poimboeuf <jpoimboe@redhat.com> Link: https://lore.kernel.org/r/20220308154318.995109889@infradead.org |
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Peter Zijlstra
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3215de84c0 |
x86/ibt,ftrace: Annotate ftrace code patching
These are code patching sites, not indirect targets. Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Acked-by: Josh Poimboeuf <jpoimboe@redhat.com> Link: https://lore.kernel.org/r/20220308154318.936599479@infradead.org |
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Peter Zijlstra
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3e3f069504 |
x86/ibt: Annotate text references
Annotate away some of the generic code references. This is things where we take the address of a symbol for exception handling or return addresses (eg. context switch). Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Acked-by: Josh Poimboeuf <jpoimboe@redhat.com> Link: https://lore.kernel.org/r/20220308154318.877758523@infradead.org |
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Peter Zijlstra
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fe379fa4d1 |
x86/ibt: Disable IBT around firmware
Assume firmware isn't IBT clean and disable it across calls. Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Reviewed-by: Kees Cook <keescook@chromium.org> Acked-by: Josh Poimboeuf <jpoimboe@redhat.com> Link: https://lore.kernel.org/r/20220308154318.759989383@infradead.org |
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Peter Zijlstra
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99c95c5d4f |
x86/alternative: Simplify int3_selftest_ip
Similar to ibt_selftest_ip, apply the same pattern. Suggested-by: Josh Poimboeuf <jpoimboe@redhat.com> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Acked-by: Josh Poimboeuf <jpoimboe@redhat.com> Link: https://lore.kernel.org/r/20220308154318.700456643@infradead.org |
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Peter Zijlstra
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af22700390 |
x86/ibt,kexec: Disable CET on kexec
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Acked-by: Josh Poimboeuf <jpoimboe@redhat.com> Link: https://lore.kernel.org/r/20220308154318.641454603@infradead.org |
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Peter Zijlstra
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991625f3dd |
x86/ibt: Add IBT feature, MSR and #CP handling
The bits required to make the hardware go.. Of note is that, provided the syscall entry points are covered with ENDBR, #CP doesn't need to be an IST because we'll never hit the syscall gap. Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Acked-by: Josh Poimboeuf <jpoimboe@redhat.com> Link: https://lore.kernel.org/r/20220308154318.582331711@infradead.org |
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Peter Zijlstra
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5891271055 |
x86/ibt,bpf: Add ENDBR instructions to prologue and trampoline
With IBT enabled builds we need ENDBR instructions at indirect jump target sites, since we start execution of the JIT'ed code through an indirect jump, the very first instruction needs to be ENDBR. Similarly, since eBPF tail-calls use indirect branches, their landing site needs to be an ENDBR too. The trampolines need similar adjustment. Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Fixed-by: Kumar Kartikeya Dwivedi <memxor@gmail.com> Acked-by: Josh Poimboeuf <jpoimboe@redhat.com> Link: https://lore.kernel.org/r/20220308154318.464998838@infradead.org |
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Peter Zijlstra
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cc66bb9145 |
x86/ibt,kprobes: Cure sym+0 equals fentry woes
In order to allow kprobes to skip the ENDBR instructions at sym+0 for X86_KERNEL_IBT builds, change _kprobe_addr() to take an architecture callback to inspect the function at hand and modify the offset if needed. This streamlines the existing interface to cover more cases and require less hooks. Once PowerPC gets fully converted there will only be the one arch hook. Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Acked-by: Masami Hiramatsu <mhiramat@kernel.org> Acked-by: Josh Poimboeuf <jpoimboe@redhat.com> Link: https://lore.kernel.org/r/20220308154318.405947704@infradead.org |
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Peter Zijlstra
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e52fc2cf3f |
x86/ibt,ftrace: Make function-graph play nice
Return trampoline must not use indirect branch to return; while this preserves the RSB, it is fundamentally incompatible with IBT. Instead use a retpoline like ROP gadget that defeats IBT while not unbalancing the RSB. And since ftrace_stub is no longer a plain RET, don't use it to copy from. Since RET is a trivial instruction, poke it directly. Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Acked-by: Josh Poimboeuf <jpoimboe@redhat.com> Link: https://lore.kernel.org/r/20220308154318.347296408@infradead.org |
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Peter Zijlstra
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aebfd12521 |
x86/ibt,ftrace: Search for __fentry__ location
Currently a lot of ftrace code assumes __fentry__ is at sym+0. However with Intel IBT enabled the first instruction of a function will most likely be ENDBR. Change ftrace_location() to not only return the __fentry__ location when called for the __fentry__ location, but also when called for the sym+0 location. Then audit/update all callsites of this function to consistently use these new semantics. Suggested-by: Steven Rostedt <rostedt@goodmis.org> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Acked-by: Masami Hiramatsu <mhiramat@kernel.org> Acked-by: Josh Poimboeuf <jpoimboe@redhat.com> Link: https://lore.kernel.org/r/20220308154318.227581603@infradead.org |
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Peter Zijlstra
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6649fa876d |
x86/ibt,kvm: Add ENDBR to fastops
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Acked-by: Josh Poimboeuf <jpoimboe@redhat.com> Link: https://lore.kernel.org/r/20220308154318.168850084@infradead.org |
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Peter Zijlstra
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214b9a83b6 |
x86/ibt,crypto: Add ENDBR for the jump-table entries
The code does: ## branch into array mov jump_table(,%rax,8), %bufp JMP_NOSPEC bufp resulting in needing to mark the jump-table entries with ENDBR. Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Acked-by: Josh Poimboeuf <jpoimboe@redhat.com> Link: https://lore.kernel.org/r/20220308154318.110500806@infradead.org |