Use blk_mq_alloc_disk and blk_cleanup_disk to simplify the gendisk and
request_queue allocation.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Link: https://lore.kernel.org/r/20210614060759.3965724-3-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
With the legacy IDE driver long deprecated, and modern userspace being
much more flexible about dev_t assignments there is no reason to fake
a registration as the legacy IDE driver in ubd. This registeration
is a little problematic as it registers the same request_queue for
multiple gendisks, so just remove it.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Acked-By: Anton Ivanov <anton.ivanov@cambridgegreys.com>
Link: https://lore.kernel.org/r/20210614060759.3965724-2-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Merge misc updates from Andrew Morton:
"191 patches.
Subsystems affected by this patch series: kthread, ia64, scripts,
ntfs, squashfs, ocfs2, kernel/watchdog, and mm (gup, pagealloc, slab,
slub, kmemleak, dax, debug, pagecache, gup, swap, memcg, pagemap,
mprotect, bootmem, dma, tracing, vmalloc, kasan, initialization,
pagealloc, and memory-failure)"
* emailed patches from Andrew Morton <akpm@linux-foundation.org>: (191 commits)
mm,hwpoison: make get_hwpoison_page() call get_any_page()
mm,hwpoison: send SIGBUS with error virutal address
mm/page_alloc: split pcp->high across all online CPUs for cpuless nodes
mm/page_alloc: allow high-order pages to be stored on the per-cpu lists
mm: replace CONFIG_FLAT_NODE_MEM_MAP with CONFIG_FLATMEM
mm: replace CONFIG_NEED_MULTIPLE_NODES with CONFIG_NUMA
docs: remove description of DISCONTIGMEM
arch, mm: remove stale mentions of DISCONIGMEM
mm: remove CONFIG_DISCONTIGMEM
m68k: remove support for DISCONTIGMEM
arc: remove support for DISCONTIGMEM
arc: update comment about HIGHMEM implementation
alpha: remove DISCONTIGMEM and NUMA
mm/page_alloc: move free_the_page
mm/page_alloc: fix counting of managed_pages
mm/page_alloc: improve memmap_pages dbg msg
mm: drop SECTION_SHIFT in code comments
mm/page_alloc: introduce vm.percpu_pagelist_high_fraction
mm/page_alloc: limit the number of pages on PCP lists when reclaim is active
mm/page_alloc: scale the number of pages that are batch freed
...
- Update ACPICA code in the kernel to upstrea revision 20210604
including the following changes:
* Add defines for the CXL Host Bridge Structureand and add the
CFMWS structure definition to CEDT (Alison Schofield).
* iASL: Finish support for the IVRS ACPI table (Bob Moore).
* iASL: Add support for the SVKL table (Bob Moore).
* iASL: Add full support for RGRT ACPI table (Bob Moore).
* iASL: Add support for the BDAT ACPI table (Bob Moore).
* iASL: add disassembler support for PRMT (Erik Kaneda).
* Fix memory leak caused by _CID repair function (Erik Kaneda).
* Add support for PlatformRtMechanism OpRegion (Erik Kaneda).
* Add PRMT module header to facilitate parsing (Erik Kaneda).
* Add _PLD panel positions (Fabian Wüthrich).
* MADT: add Multiprocessor Wakeup Mailbox Structure and the
SVKL table headers (Kuppuswamy Sathyanarayanan).
* Use ACPI_FALLTHROUGH (Wei Ming Chen).
- Add preliminary support for the Platform Runtime Mechanism (PRM)
to allow the AML interpreter to call PRM functions (Erik Kaneda).
- Address some issues related to the handling of device dependencies
reported by _DEP in the ACPI device enumeration code and clean up
some related pieces of it (Rafael Wysocki).
- Improve the tracking of states of ACPI power resources (Rafael
Wysocki).
- Improve ACPI support for suspend-to-idle on AMD systems (Alex
Deucher, Mario Limonciello, Pratik Vishwakarma).
- Continue the unification and cleanup of message printing in the
ACPI code (Hanjun Guo, Heiner Kallweit).
- Fix possible buffer overrun issue with the description_show()
sysfs attribute method (Krzysztof Wilczyński).
- Improve the acpi_mask_gpe kernel command line parameter handling
and clean up the core ACPI code related to sysfs (Andy Shevchenko,
Baokun Li, Clayton Casciato).
- Postpone bringing devices in the general ACPI PM domain to D0
during resume from system-wide suspend until they are really
needed (Dmitry Torokhov).
- Make the ACPI processor driver fix up C-state latency if not
ordered (Mario Limonciello).
- Add support for identifying devices depening on the given one
that are not its direct descendants with the help of _DEP (Daniel
Scally).
- Extend the checks related to ACPI IRQ overrides on x86 in order to
avoid false-positives (Hui Wang).
- Add battery DPTF participant for Intel SoCs (Sumeet Pawnikar).
- Rearrange the ACPI fan driver and device power management code to
use a common list of device IDs (Rafael Wysocki).
- Fix clang CFI violation in the ACPI BGRT table parsing code and
clean it up (Nathan Chancellor).
- Add GPE-related quirks for some laptops to the EC driver (Chris
Chiu, Zhang Rui).
- Make the ACPI PPTT table parsing code populate the cache-id
value if present in the firmware (James Morse).
- Remove redundant clearing of context->ret.pointer from
acpi_run_osc() (Hans de Goede).
- Add missing acpi_put_table() in acpi_init_fpdt() (Jing Xiangfeng).
- Make ACPI APEI handle ARM Processor Error CPER records like
Memory Error ones to avoid user space task lockups (Xiaofei Tan).
- Stop warning about disabled ACPI in APEI (Jon Hunter).
- Fix fall-through warning for Clang in the SBSHC driver (Gustavo A.
R. Silva).
- Add custom DSDT file as Makefile prerequisite (Richard Fitzgerald).
- Initialize local variable to avoid garbage being returned (Colin
Ian King).
- Simplify assorted pieces of code, address assorted coding style
and documentation issues and comment typos (Baokun Li, Christophe
JAILLET, Clayton Casciato, Liu Shixin, Shaokun Zhang, Wei Yongjun,
Yang Li, Zhen Lei).
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Merge tag 'acpi-5.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull ACPI updates from Rafael Wysocki:
"These update the ACPICA code in the kernel to the 20210604 upstream
revision, add preliminary support for the Platform Runtime Mechanism
(PRM), address issues related to the handling of device dependencies
in the ACPI device eunmeration code, improve the tracking of ACPI
power resource states, improve the ACPI support for suspend-to-idle on
AMD systems, continue the unification of message printing in the ACPI
code, address assorted issues and clean up the code in a number of
places.
Specifics:
- Update ACPICA code in the kernel to upstrea revision 20210604
including the following changes:
- Add defines for the CXL Host Bridge Structureand and add the
CFMWS structure definition to CEDT (Alison Schofield).
- iASL: Finish support for the IVRS ACPI table (Bob Moore).
- iASL: Add support for the SVKL table (Bob Moore).
- iASL: Add full support for RGRT ACPI table (Bob Moore).
- iASL: Add support for the BDAT ACPI table (Bob Moore).
- iASL: add disassembler support for PRMT (Erik Kaneda).
- Fix memory leak caused by _CID repair function (Erik Kaneda).
- Add support for PlatformRtMechanism OpRegion (Erik Kaneda).
- Add PRMT module header to facilitate parsing (Erik Kaneda).
- Add _PLD panel positions (Fabian Wüthrich).
- MADT: add Multiprocessor Wakeup Mailbox Structure and the SVKL
table headers (Kuppuswamy Sathyanarayanan).
- Use ACPI_FALLTHROUGH (Wei Ming Chen).
- Add preliminary support for the Platform Runtime Mechanism (PRM) to
allow the AML interpreter to call PRM functions (Erik Kaneda).
- Address some issues related to the handling of device dependencies
reported by _DEP in the ACPI device enumeration code and clean up
some related pieces of it (Rafael Wysocki).
- Improve the tracking of states of ACPI power resources (Rafael
Wysocki).
- Improve ACPI support for suspend-to-idle on AMD systems (Alex
Deucher, Mario Limonciello, Pratik Vishwakarma).
- Continue the unification and cleanup of message printing in the
ACPI code (Hanjun Guo, Heiner Kallweit).
- Fix possible buffer overrun issue with the description_show() sysfs
attribute method (Krzysztof Wilczyński).
- Improve the acpi_mask_gpe kernel command line parameter handling
and clean up the core ACPI code related to sysfs (Andy Shevchenko,
Baokun Li, Clayton Casciato).
- Postpone bringing devices in the general ACPI PM domain to D0
during resume from system-wide suspend until they are really needed
(Dmitry Torokhov).
- Make the ACPI processor driver fix up C-state latency if not
ordered (Mario Limonciello).
- Add support for identifying devices depening on the given one that
are not its direct descendants with the help of _DEP (Daniel
Scally).
- Extend the checks related to ACPI IRQ overrides on x86 in order to
avoid false-positives (Hui Wang).
- Add battery DPTF participant for Intel SoCs (Sumeet Pawnikar).
- Rearrange the ACPI fan driver and device power management code to
use a common list of device IDs (Rafael Wysocki).
- Fix clang CFI violation in the ACPI BGRT table parsing code and
clean it up (Nathan Chancellor).
- Add GPE-related quirks for some laptops to the EC driver (Chris
Chiu, Zhang Rui).
- Make the ACPI PPTT table parsing code populate the cache-id value
if present in the firmware (James Morse).
- Remove redundant clearing of context->ret.pointer from
acpi_run_osc() (Hans de Goede).
- Add missing acpi_put_table() in acpi_init_fpdt() (Jing Xiangfeng).
- Make ACPI APEI handle ARM Processor Error CPER records like Memory
Error ones to avoid user space task lockups (Xiaofei Tan).
- Stop warning about disabled ACPI in APEI (Jon Hunter).
- Fix fall-through warning for Clang in the SBSHC driver (Gustavo A.
R. Silva).
- Add custom DSDT file as Makefile prerequisite (Richard Fitzgerald).
- Initialize local variable to avoid garbage being returned (Colin
Ian King).
- Simplify assorted pieces of code, address assorted coding style and
documentation issues and comment typos (Baokun Li, Christophe
JAILLET, Clayton Casciato, Liu Shixin, Shaokun Zhang, Wei Yongjun,
Yang Li, Zhen Lei)"
* tag 'acpi-5.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (97 commits)
ACPI: PM: postpone bringing devices to D0 unless we need them
ACPI: tables: Add custom DSDT file as makefile prerequisite
ACPI: bgrt: Use sysfs_emit
ACPI: bgrt: Fix CFI violation
ACPI: EC: trust DSDT GPE for certain HP laptop
ACPI: scan: Simplify acpi_table_events_fn()
ACPI: PM: Adjust behavior for field problems on AMD systems
ACPI: PM: s2idle: Add support for new Microsoft UUID
ACPI: PM: s2idle: Add support for multiple func mask
ACPI: PM: s2idle: Refactor common code
ACPI: PM: s2idle: Use correct revision id
ACPI: sysfs: Remove tailing return statement in void function
ACPI: sysfs: Use __ATTR_RO() and __ATTR_RW() macros
ACPI: sysfs: Sort headers alphabetically
ACPI: sysfs: Refactor param_get_trace_state() to drop dead code
ACPI: sysfs: Unify pattern of memory allocations
ACPI: sysfs: Allow bitmap list to be supplied to acpi_mask_gpe
ACPI: sysfs: Make sparse happy about address space in use
ACPI: scan: Fix race related to dropping dependencies
ACPI: scan: Reorganize acpi_device_add()
...
- Consolidate the macros for .byte ... opcode sequences
- Deduplicate register offset defines in include files
- Simplify the ia32,x32 compat handling of the related syscall tables to
get rid of #ifdeffery.
- Clear all EFLAGS which are not required for syscall handling
- Consolidate the syscall tables and switch the generation over to the
generic shell script and remove the CFLAGS tweaks which are not longer
required.
- Use 'int' type for system call numbers to match the generic code.
- Add more selftests for syscalls
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Merge tag 'x86-entry-2021-06-29' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 entry code related updates from Thomas Gleixner:
- Consolidate the macros for .byte ... opcode sequences
- Deduplicate register offset defines in include files
- Simplify the ia32,x32 compat handling of the related syscall tables
to get rid of #ifdeffery.
- Clear all EFLAGS which are not required for syscall handling
- Consolidate the syscall tables and switch the generation over to the
generic shell script and remove the CFLAGS tweaks which are not
longer required.
- Use 'int' type for system call numbers to match the generic code.
- Add more selftests for syscalls
* tag 'x86-entry-2021-06-29' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/syscalls: Don't adjust CFLAGS for syscall tables
x86/syscalls: Remove -Wno-override-init for syscall tables
x86/uml/syscalls: Remove array index from syscall initializers
x86/syscalls: Clear 'offset' and 'prefix' in case they are set in env
x86/entry: Use int everywhere for system call numbers
x86/entry: Treat out of range and gap system calls the same
x86/entry/64: Sign-extend system calls on entry to int
selftests/x86/syscall: Add tests under ptrace to syscall_numbering_64
selftests/x86/syscall: Simplify message reporting in syscall_numbering
selftests/x86/syscall: Update and extend syscall_numbering_64
x86/syscalls: Switch to generic syscallhdr.sh
x86/syscalls: Use __NR_syscalls instead of __NR_syscall_max
x86/unistd: Define X32_NR_syscalls only for 64-bit kernel
x86/syscalls: Stop filling syscall arrays with *_sys_ni_syscall
x86/syscalls: Switch to generic syscalltbl.sh
x86/entry/x32: Rename __x32_compat_sys_* to __x64_compat_sys_*
- Consolidate the VECTOR defines and the usage sites.
- Cleanup GDT/IDT related code and replace open coded ASM with proper
native helfper functions.
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Merge tag 'x86-irq-2021-06-29' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 interrupt related updates from Thomas Gleixner:
- Consolidate the VECTOR defines and the usage sites.
- Cleanup GDT/IDT related code and replace open coded ASM with proper
native helper functions.
* tag 'x86-irq-2021-06-29' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/kexec: Set_[gi]dt() -> native_[gi]dt_invalidate() in machine_kexec_*.c
x86: Add native_[ig]dt_invalidate()
x86/idt: Remove address argument from idt_invalidate()
x86/irq: Add and use NR_EXTERNAL_VECTORS and NR_SYSTEM_VECTORS
x86/irq: Remove unused vectors defines
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Merge tag 'timers-core-2021-06-29' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull timer updates from Thomas Gleixner:
"Time and clocksource/clockevent related updates:
Core changes:
- Infrastructure to support per CPU "broadcast" devices for per CPU
clockevent devices which stop in deep idle states. This allows us
to utilize the more efficient architected timer on certain ARM SoCs
for normal operation instead of permanentely using the slow to
access SoC specific clockevent device.
- Print the name of the broadcast/wakeup device in /proc/timer_list
- Make the clocksource watchdog more robust against delays between
reading the current active clocksource and the watchdog
clocksource. Such delays can be caused by NMIs, SMIs and vCPU
preemption.
Handle this by reading the watchdog clocksource twice, i.e. before
and after reading the current active clocksource. In case that the
two watchdog reads shows an excessive time delta, the read sequence
is repeated up to 3 times.
- Improve the debug output and add a test module for the watchdog
mechanism.
- Reimplementation of the venerable time64_to_tm() function with a
faster and significantly smaller version. Straight from the source,
i.e. the author of the related research paper contributed this!
Driver changes:
- No new drivers, not even new device tree bindings!
- Fixes, improvements and cleanups and all over the place"
* tag 'timers-core-2021-06-29' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (30 commits)
time/kunit: Add missing MODULE_LICENSE()
time: Improve performance of time64_to_tm()
clockevents: Use list_move() instead of list_del()/list_add()
clocksource: Print deviation in nanoseconds when a clocksource becomes unstable
clocksource: Provide kernel module to test clocksource watchdog
clocksource: Reduce clocksource-skew threshold
clocksource: Limit number of CPUs checked for clock synchronization
clocksource: Check per-CPU clock synchronization when marked unstable
clocksource: Retry clock read if long delays detected
clockevents: Add missing parameter documentation
clocksource/drivers/timer-ti-dm: Drop unnecessary restore
clocksource/arm_arch_timer: Improve Allwinner A64 timer workaround
clocksource/drivers/arm_global_timer: Remove duplicated argument in arm_global_timer
clocksource/drivers/arm_global_timer: Make symbol 'gt_clk_rate_change_nb' static
arm: zynq: don't disable CONFIG_ARM_GLOBAL_TIMER due to CONFIG_CPU_FREQ anymore
clocksource/drivers/arm_global_timer: Implement rate compensation whenever source clock changes
clocksource/drivers/ingenic: Rename unreasonable array names
clocksource/drivers/timer-ti-dm: Save and restore timer TIOCP_CFG
clocksource/drivers/mediatek: Ack and disable interrupts on suspend
clocksource/drivers/samsung_pwm: Constify source IO memory
...
Core changes:
- Cleanup and simplification of common code to invoke the low level
interrupt flow handlers when this invocation requires irqdomain
resolution. Add the necessary core infrastructure.
- Provide a proper interface for modular PMU drivers to set the
interrupt affinity.
- Add a request flag which allows to exclude interrupts from spurious
interrupt detection. Useful especially for IPI handlers which always
return IRQ_HANDLED which turns the spurious interrupt detection into a
pointless waste of CPU cycles.
Driver changes:
- Bulk convert interrupt chip drivers to the new irqdomain low level flow
handler invocation mechanism.
- Add device tree bindings for the Renesas R-Car M3-W+ SoC
- Enable modular build of the Qualcomm PDC driver
- The usual small fixes and improvements.
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Merge tag 'irq-core-2021-06-29' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull irq updates from Thomas Gleixner:
"Updates for the interrupt subsystem:
Core changes:
- Cleanup and simplification of common code to invoke the low level
interrupt flow handlers when this invocation requires irqdomain
resolution. Add the necessary core infrastructure.
- Provide a proper interface for modular PMU drivers to set the
interrupt affinity.
- Add a request flag which allows to exclude interrupts from spurious
interrupt detection. Useful especially for IPI handlers which
always return IRQ_HANDLED which turns the spurious interrupt
detection into a pointless waste of CPU cycles.
Driver changes:
- Bulk convert interrupt chip drivers to the new irqdomain low level
flow handler invocation mechanism.
- Add device tree bindings for the Renesas R-Car M3-W+ SoC
- Enable modular build of the Qualcomm PDC driver
- The usual small fixes and improvements"
* tag 'irq-core-2021-06-29' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (38 commits)
dt-bindings: interrupt-controller: arm,gic-v3: Describe GICv3 optional properties
irqchip: gic-pm: Remove redundant error log of clock bulk
irqchip/sun4i: Remove unnecessary oom message
irqchip/irq-imx-gpcv2: Remove unnecessary oom message
irqchip/imgpdc: Remove unnecessary oom message
irqchip/gic-v3-its: Remove unnecessary oom message
irqchip/gic-v2m: Remove unnecessary oom message
irqchip/exynos-combiner: Remove unnecessary oom message
irqchip: Bulk conversion to generic_handle_domain_irq()
genirq: Move non-irqdomain handle_domain_irq() handling into ARM's handle_IRQ()
genirq: Add generic_handle_domain_irq() helper
irqchip/nvic: Convert from handle_IRQ() to handle_domain_irq()
irqdesc: Fix __handle_domain_irq() comment
genirq: Use irq_resolve_mapping() to implement __handle_domain_irq() and co
irqdomain: Introduce irq_resolve_mapping()
irqdomain: Protect the linear revmap with RCU
irqdomain: Cache irq_data instead of a virq number in the revmap
irqdomain: Use struct_size() helper when allocating irqdomain
irqdomain: Make normal and nomap irqdomains exclusive
powerpc: Move the use of irq_domain_add_nomap() behind a config option
...
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Merge tag 'hyperv-next-signed-20210629' of git://git.kernel.org/pub/scm/linux/kernel/git/hyperv/linux
Pull hyperv updates from Wei Liu:
"Just a few minor enhancement patches and bug fixes"
* tag 'hyperv-next-signed-20210629' of git://git.kernel.org/pub/scm/linux/kernel/git/hyperv/linux:
PCI: hv: Add check for hyperv_initialized in init_hv_pci_drv()
Drivers: hv: Move Hyper-V extended capability check to arch neutral code
drivers: hv: Fix missing error code in vmbus_connect()
x86/hyperv: fix logical processor creation
hv_utils: Fix passing zero to 'PTR_ERR' warning
scsi: storvsc: Use blk_mq_unique_tag() to generate requestIDs
Drivers: hv: vmbus: Copy packets sent by Hyper-V out of the ring buffer
hv_balloon: Remove redundant assignment to region_start
Now an action required MCE in already hwpoisoned address surely sends a
SIGBUS to current process, but the SIGBUS doesn't convey error virtual
address. That's not optimal for hwpoison-aware applications.
To fix the issue, make memory_failure() call kill_accessing_process(),
that does pagetable walk to find the error virtual address. It could find
multiple virtual addresses for the same error page, and it seems hard to
tell which virtual address is correct one. But that's rare and sending
incorrect virtual address could be better than no address. So let's
report the first found virtual address for now.
[naoya.horiguchi@nec.com: fix walk_page_range() return]
Link: https://lkml.kernel.org/r/20210603051055.GA244241@hori.linux.bs1.fc.nec.co.jp
Link: https://lkml.kernel.org/r/20210521030156.2612074-4-nao.horiguchi@gmail.com
Signed-off-by: Naoya Horiguchi <naoya.horiguchi@nec.com>
Cc: Tony Luck <tony.luck@intel.com>
Cc: Aili Yao <yaoaili@kingsoft.com>
Cc: Oscar Salvador <osalvador@suse.de>
Cc: David Hildenbrand <david@redhat.com>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Andy Lutomirski <luto@kernel.org>
Cc: Jue Wang <juew@google.com>
Cc: Borislav Petkov <bp@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
After removal of DISCINTIGMEM the NEED_MULTIPLE_NODES and NUMA
configuration options are equivalent.
Drop CONFIG_NEED_MULTIPLE_NODES and use CONFIG_NUMA instead.
Done with
$ sed -i 's/CONFIG_NEED_MULTIPLE_NODES/CONFIG_NUMA/' \
$(git grep -wl CONFIG_NEED_MULTIPLE_NODES)
$ sed -i 's/NEED_MULTIPLE_NODES/NUMA/' \
$(git grep -wl NEED_MULTIPLE_NODES)
with manual tweaks afterwards.
[rppt@linux.ibm.com: fix arm boot crash]
Link: https://lkml.kernel.org/r/YMj9vHhHOiCVN4BF@linux.ibm.com
Link: https://lkml.kernel.org/r/20210608091316.3622-9-rppt@kernel.org
Signed-off-by: Mike Rapoport <rppt@linux.ibm.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: David Hildenbrand <david@redhat.com>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Matt Turner <mattst88@gmail.com>
Cc: Richard Henderson <rth@twiddle.net>
Cc: Vineet Gupta <vgupta@synopsys.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
There are several places that mention DISCONIGMEM in comments or have
stale code guarded by CONFIG_DISCONTIGMEM.
Remove the dead code and update the comments.
Link: https://lkml.kernel.org/r/20210608091316.3622-7-rppt@kernel.org
Signed-off-by: Mike Rapoport <rppt@linux.ibm.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: David Hildenbrand <david@redhat.com>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Matt Turner <mattst88@gmail.com>
Cc: Richard Henderson <rth@twiddle.net>
Cc: Vineet Gupta <vgupta@synopsys.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
DISCONTIGMEM was replaced by FLATMEM with freeing of the unused memory map
in v5.11.
Remove the support for DISCONTIGMEM entirely.
Link: https://lkml.kernel.org/r/20210608091316.3622-5-rppt@kernel.org
Signed-off-by: Mike Rapoport <rppt@linux.ibm.com>
Reviewed-by: Geert Uytterhoeven <geert@linux-m68k.org>
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Matt Turner <mattst88@gmail.com>
Cc: Richard Henderson <rth@twiddle.net>
Cc: Vineet Gupta <vgupta@synopsys.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
DISCONTIGMEM was replaced by FLATMEM with freeing of the unused memory map
in v5.11.
Remove the support for DISCONTIGMEM entirely.
Link: https://lkml.kernel.org/r/20210608091316.3622-4-rppt@kernel.org
Signed-off-by: Mike Rapoport <rppt@linux.ibm.com>
Acked-by: Vineet Gupta <vgupta@synopsys.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: David Hildenbrand <david@redhat.com>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Matt Turner <mattst88@gmail.com>
Cc: Richard Henderson <rth@twiddle.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Arc does not use DISCONTIGMEM to implement high memory, update the comment
describing how high memory works to reflect this.
Link: https://lkml.kernel.org/r/20210608091316.3622-3-rppt@kernel.org
Signed-off-by: Mike Rapoport <rppt@linux.ibm.com>
Acked-by: Vineet Gupta <vgupta@synopsys.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: David Hildenbrand <david@redhat.com>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Matt Turner <mattst88@gmail.com>
Cc: Richard Henderson <rth@twiddle.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Patch series "Remove DISCONTIGMEM memory model", v3.
SPARSEMEM memory model was supposed to entirely replace DISCONTIGMEM a
(long) while ago. The last architectures that used DISCONTIGMEM were
updated to use other memory models in v5.11 and it is about the time to
entirely remove DISCONTIGMEM from the kernel.
This set removes DISCONTIGMEM from alpha, arc and m68k, simplifies memory
model selection in mm/Kconfig and replaces usage of redundant
CONFIG_NEED_MULTIPLE_NODES and CONFIG_FLAT_NODE_MEM_MAP with CONFIG_NUMA
and CONFIG_FLATMEM respectively.
I've also removed NUMA support on alpha that was BROKEN for more than 15
years.
There were also minor updates all over arch/ to remove mentions of
DISCONTIGMEM in comments and #ifdefs.
This patch (of 9):
NUMA is marked broken on alpha for more than 15 years and DISCONTIGMEM was
replaced with SPARSEMEM in v5.11.
Remove both NUMA and DISCONTIGMEM support from alpha.
Link: https://lkml.kernel.org/r/20210608091316.3622-1-rppt@kernel.org
Link: https://lkml.kernel.org/r/20210608091316.3622-2-rppt@kernel.org
Signed-off-by: Mike Rapoport <rppt@linux.ibm.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: David Hildenbrand <david@redhat.com>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Matt Turner <mattst88@gmail.com>
Cc: Richard Henderson <rth@twiddle.net>
Cc: Vineet Gupta <vgupta@synopsys.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Commit c65e774fb3 ("x86/mm: Make PGDIR_SHIFT and PTRS_PER_P4D variable")
made PTRS_PER_P4D variable on x86 and introduced MAX_PTRS_PER_P4D as a
constant for cases which need a compile-time constant (e.g. fixed-size
arrays).
powerpc likewise has boot-time selectable MMU features which can cause
other mm "constants" to vary. For KASAN, we have some static
PTE/PMD/PUD/P4D arrays so we need compile-time maximums for all these
constants. Extend the MAX_PTRS_PER_ idiom, and place default definitions
in include/pgtable.h. These define MAX_PTRS_PER_x to be PTRS_PER_x unless
an architecture has defined MAX_PTRS_PER_x in its arch headers.
Clean up pgtable-nop4d.h and s390's MAX_PTRS_PER_P4D definitions while
we're at it: both can just pick up the default now.
Link: https://lkml.kernel.org/r/20210624034050.511391-4-dja@axtens.net
Signed-off-by: Daniel Axtens <dja@axtens.net>
Acked-by: Andrey Konovalov <andreyknvl@gmail.com>
Reviewed-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Reviewed-by: Marco Elver <elver@google.com>
Cc: Aneesh Kumar K.V <aneesh.kumar@linux.ibm.com>
Cc: Balbir Singh <bsingharora@gmail.com>
Cc: Alexander Potapenko <glider@google.com>
Cc: Andrey Ryabinin <ryabinin.a.a@gmail.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
1. These tlb flush functions have been using vma instead mm long time
ago, but there is still some comments use mm as parameter.
2. the actual struct we use is vm_area_struct instead of vma_struct.
3. remove unused flush_kern_tlb_page.
Link: https://lkml.kernel.org/r/87k0oaq311.wl-chenli@uniontech.com
Signed-off-by: Chen Li <chenli@uniontech.com>
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Russell King <linux@armlinux.org.uk>
Cc: Jonas Bonn <jonas@southpole.se>
Cc: Chris Zankel <chris@zankel.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Use vma_lookup() to find the VMA at a specific address. As vma_lookup()
will return NULL if the address is not within any VMA, the start address
no longer needs to be validated.
Link: https://lkml.kernel.org/r/20210521174745.2219620-10-Liam.Howlett@Oracle.com
Signed-off-by: Liam R. Howlett <Liam.Howlett@Oracle.com>
Reviewed-by: Laurent Dufour <ldufour@linux.ibm.com>
Acked-by: David Hildenbrand <david@redhat.com>
Acked-by: Davidlohr Bueso <dbueso@suse.de>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Use vma_lookup() to find the VMA at a specific address. As vma_lookup()
will return NULL if the address is not within any VMA, the start address
no longer needs to be validated.
Link: https://lkml.kernel.org/r/20210521174745.2219620-9-Liam.Howlett@Oracle.com
Signed-off-by: Liam R. Howlett <Liam.Howlett@Oracle.com>
Reviewed-by: Laurent Dufour <ldufour@linux.ibm.com>
Acked-by: David Hildenbrand <david@redhat.com>
Acked-by: Davidlohr Bueso <dbueso@suse.de>
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Use vma_lookup() to find the VMA at a specific address. As vma_lookup()
will return NULL if the address is not within any VMA, the start address
no longer needs to be validated.
Link: https://lkml.kernel.org/r/20210521174745.2219620-8-Liam.Howlett@Oracle.com
Signed-off-by: Liam R. Howlett <Liam.Howlett@Oracle.com>
Reviewed-by: Laurent Dufour <ldufour@linux.ibm.com>
Acked-by: David Hildenbrand <david@redhat.com>
Acked-by: Davidlohr Bueso <dbueso@suse.de>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Using vma_lookup() removes the requirement to check if the address is
within the returned vma. The code is easier to understand and more
compact.
Link: https://lkml.kernel.org/r/20210521174745.2219620-7-Liam.Howlett@Oracle.com
Signed-off-by: Liam R. Howlett <Liam.Howlett@Oracle.com>
Reviewed-by: Laurent Dufour <ldufour@linux.ibm.com>
Acked-by: David Hildenbrand <david@redhat.com>
Acked-by: Davidlohr Bueso <dbueso@suse.de>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
vma_lookup() finds the vma of a specific address with a cleaner interface
and is more readable.
Link: https://lkml.kernel.org/r/20210521174745.2219620-6-Liam.Howlett@Oracle.com
Signed-off-by: Liam R. Howlett <Liam.Howlett@Oracle.com>
Reviewed-by: Laurent Dufour <ldufour@linux.ibm.com>
Acked-by: David Hildenbrand <david@redhat.com>
Acked-by: Davidlohr Bueso <dbueso@suse.de>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
vma_lookup() finds the vma of a specific address with a cleaner interface
and is more readable.
Link: https://lkml.kernel.org/r/20210521174745.2219620-5-Liam.Howlett@Oracle.com
Signed-off-by: Liam R. Howlett <Liam.Howlett@Oracle.com>
Reviewed-by: Laurent Dufour <ldufour@linux.ibm.com>
Acked-by: David Hildenbrand <david@redhat.com>
Acked-by: Davidlohr Bueso <dbueso@suse.de>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Use vma_lookup() to find the VMA at a specific address. As vma_lookup()
will return NULL if the address is not within any VMA, the start address
no longer needs to be validated.
Link: https://lkml.kernel.org/r/20210521174745.2219620-4-Liam.Howlett@Oracle.com
Signed-off-by: Liam R. Howlett <Liam.Howlett@Oracle.com>
Reviewed-by: Laurent Dufour <ldufour@linux.ibm.com>
Acked-by: David Hildenbrand <david@redhat.com>
Acked-by: Davidlohr Bueso <dbueso@suse.de>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
gcc points out a mistake in the mca driver that goes back to before the
git history:
arch/ia64/kernel/mca_drv.c: In function 'init_record_index_pools':
arch/ia64/kernel/mca_drv.c:346:54: error: expression does not compute the number of elements in this array; element typ
e is 'int', not 'size_t' {aka 'long unsigned int'} [-Werror=sizeof-array-div]
346 | for (i = 1; i < sizeof sal_log_sect_min_sizes/sizeof(size_t); i++)
| ^
This is the same as sizeof(size_t), which is two shorter than the actual
array. Use the ARRAY_SIZE() macro to get the correct calculation instead.
Link: https://lkml.kernel.org/r/20210514214123.875971-1-arnd@kernel.org
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Cc: Masahiro Yamada <masahiroy@kernel.org>
Cc: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Delete the repeated words "to" and "the".
Link: https://lkml.kernel.org/r/20210507184837.10754-1-rdunlap@infradead.org
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Cc: Fenghua Yu <fenghua.yu@intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* acpi-prm:
ACPI: PRM: make symbol 'prm_module_list' static
ACPI: Add \_SB._OSC bit for PRM
ACPI: PRM: implement OperationRegion handler for the PlatformRtMechanism subtype
* acpi-sysfs:
ACPI: sysfs: Remove tailing return statement in void function
ACPI: sysfs: Use __ATTR_RO() and __ATTR_RW() macros
ACPI: sysfs: Sort headers alphabetically
ACPI: sysfs: Refactor param_get_trace_state() to drop dead code
ACPI: sysfs: Unify pattern of memory allocations
ACPI: sysfs: Allow bitmap list to be supplied to acpi_mask_gpe
ACPI: sysfs: Make sparse happy about address space in use
ACPI: sysfs: fix doc warnings in device_sysfs.c
ACPI: sysfs: Drop four redundant return statements
ACPI: sysfs: Fix a buffer overrun problem with description_show()
* acpi-x86:
x86/acpi: Switch to pr_xxx log functions
Pull crypto updates from Herbert Xu:
"Algorithms:
- Fix rmmod crash with x86/curve25519
- Add ECDH NIST P384
- Generate assembly files at build-time with perl scripts on arm
- Switch to HMAC SHA512 DRBG as default DRBG
Drivers:
- Add sl3516 crypto engine
- Add ECDH NIST P384 support in hisilicon/hpre
- Add {ofb,cfb,ctr} over {aes,sm4} in hisilicon/sec
- Add {ccm,gcm} over {aes,sm4} in hisilicon/sec
- Enable omap hwrng driver for TI K3 family
- Add support for AEAD algorithms in qce"
* 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: (142 commits)
crypto: sl3516 - depends on HAS_IOMEM
crypto: hisilicon/qm - implement for querying hardware tasks status.
crypto: sl3516 - Fix build warning without CONFIG_PM
MAINTAINERS: update caam crypto driver maintainers list
crypto: nx - Fix numerous sparse byte-order warnings
crypto: nx - Fix RCU warning in nx842_OF_upd_status
crypto: api - Move crypto attr definitions out of crypto.h
crypto: nx - Fix memcpy() over-reading in nonce
crypto: hisilicon/sec - Fix spelling mistake "fallbcak" -> "fallback"
crypto: sa2ul - Remove unused auth_len variable
crypto: sl3516 - fix duplicated inclusion
crypto: hisilicon/zip - adds the max shaper type rate
crypto: hisilicon/hpre - adds the max shaper type rate
crypto: hisilicon/sec - adds the max shaper type rate
crypto: hisilicon/qm - supports to inquiry each function's QoS
crypto: hisilicon/qm - add pf ping single vf function
crypto: hisilicon/qm - merges the work initialization process into a single function
crypto: hisilicon/qm - add the "alg_qos" file node
crypto: hisilicon/qm - supports writing QoS int the host
crypto: api - remove CRYPTOA_U32 and related functions
...
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Merge tag 'media/v5.14-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media
Pull media updates from Mauro Carvalho Chehab:
- V4L2 core control API was split into separate files
- New RC maps: tango and tc-90405
- Hantro driver got support for G2/HEVC decoder
- av7710 is moving to staging, together with some legacy APIs
- several cleanups related to compat_ioctl32 code
- Move the MPEG-2 stateless control type out of staging
- Address several issues with RPM get logic on media drivers
- Lots of cleanups, bug fixes and improvements.
* tag 'media/v5.14-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (394 commits)
media: s5p-mfc: Fix display delay control creation
media: mtk-vpu: on suspend, read/write regs only if vpu is running
media: video-mux: Skip dangling endpoints
media: Fix Media Controller API config checks
media: i2c: rdacm20: Re-work ov10635 reset
media: i2c: rdacm20: Check return values
media: i2c: rdacm20: Report camera module name
media: i2c: rdacm20: Enable noise immunity
media: i2c: rdacm20: Embed 'serializer' field
media: i2c: rdacm21: Power up OV10640 before OV490
media: i2c: rdacm21: Fix OV10640 powerup
media: i2c: rdacm21: Add delay after OV490 reset
media: i2c: max9271: Introduce wake_up() function
media: i2c: max9271: Check max9271_write() return
media: i2c: max9286: Rework comments in .bound()
media: i2c: max9286: Define high channel amplitude
media: i2c: max9286: Cache channel amplitude
media: i2c: max9286: Rename reverse_channel_mv
media: i2c: max9286: Adjust parameters indent
media: hantro: add support for Rockchip RK3036
...
- Add MTE support in guests, complete with tag save/restore interface
- Reduce the impact of CMOs by moving them in the page-table code
- Allow device block mappings at stage-2
- Reduce the footprint of the vmemmap in protected mode
- Support the vGIC on dumb systems such as the Apple M1
- Add selftest infrastructure to support multiple configuration
and apply that to PMU/non-PMU setups
- Add selftests for the debug architecture
- The usual crop of PMU fixes
PPC:
- Support for the H_RPT_INVALIDATE hypercall
- Conversion of Book3S entry/exit to C
- Bug fixes
S390:
- new HW facilities for guests
- make inline assembly more robust with KASAN and co
x86:
- Allow userspace to handle emulation errors (unknown instructions)
- Lazy allocation of the rmap (host physical -> guest physical address)
- Support for virtualizing TSC scaling on VMX machines
- Optimizations to avoid shattering huge pages at the beginning of live migration
- Support for initializing the PDPTRs without loading them from memory
- Many TLB flushing cleanups
- Refuse to load if two-stage paging is available but NX is not (this has
been a requirement in practice for over a year)
- A large series that separates the MMU mode (WP/SMAP/SMEP etc.) from
CR0/CR4/EFER, using the MMU mode everywhere once it is computed
from the CPU registers
- Use PM notifier to notify the guest about host suspend or hibernate
- Support for passing arguments to Hyper-V hypercalls using XMM registers
- Support for Hyper-V TLB flush hypercalls and enlightened MSR bitmap on
AMD processors
- Hide Hyper-V hypercalls that are not included in the guest CPUID
- Fixes for live migration of virtual machines that use the Hyper-V
"enlightened VMCS" optimization of nested virtualization
- Bugfixes (not many)
Generic:
- Support for retrieving statistics without debugfs
- Cleanups for the KVM selftests API
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm
Pull kvm updates from Paolo Bonzini:
"This covers all architectures (except MIPS) so I don't expect any
other feature pull requests this merge window.
ARM:
- Add MTE support in guests, complete with tag save/restore interface
- Reduce the impact of CMOs by moving them in the page-table code
- Allow device block mappings at stage-2
- Reduce the footprint of the vmemmap in protected mode
- Support the vGIC on dumb systems such as the Apple M1
- Add selftest infrastructure to support multiple configuration and
apply that to PMU/non-PMU setups
- Add selftests for the debug architecture
- The usual crop of PMU fixes
PPC:
- Support for the H_RPT_INVALIDATE hypercall
- Conversion of Book3S entry/exit to C
- Bug fixes
S390:
- new HW facilities for guests
- make inline assembly more robust with KASAN and co
x86:
- Allow userspace to handle emulation errors (unknown instructions)
- Lazy allocation of the rmap (host physical -> guest physical
address)
- Support for virtualizing TSC scaling on VMX machines
- Optimizations to avoid shattering huge pages at the beginning of
live migration
- Support for initializing the PDPTRs without loading them from
memory
- Many TLB flushing cleanups
- Refuse to load if two-stage paging is available but NX is not (this
has been a requirement in practice for over a year)
- A large series that separates the MMU mode (WP/SMAP/SMEP etc.) from
CR0/CR4/EFER, using the MMU mode everywhere once it is computed
from the CPU registers
- Use PM notifier to notify the guest about host suspend or hibernate
- Support for passing arguments to Hyper-V hypercalls using XMM
registers
- Support for Hyper-V TLB flush hypercalls and enlightened MSR bitmap
on AMD processors
- Hide Hyper-V hypercalls that are not included in the guest CPUID
- Fixes for live migration of virtual machines that use the Hyper-V
"enlightened VMCS" optimization of nested virtualization
- Bugfixes (not many)
Generic:
- Support for retrieving statistics without debugfs
- Cleanups for the KVM selftests API"
* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (314 commits)
KVM: x86: rename apic_access_page_done to apic_access_memslot_enabled
kvm: x86: disable the narrow guest module parameter on unload
selftests: kvm: Allows userspace to handle emulation errors.
kvm: x86: Allow userspace to handle emulation errors
KVM: x86/mmu: Let guest use GBPAGES if supported in hardware and TDP is on
KVM: x86/mmu: Get CR4.SMEP from MMU, not vCPU, in shadow page fault
KVM: x86/mmu: Get CR0.WP from MMU, not vCPU, in shadow page fault
KVM: x86/mmu: Drop redundant rsvd bits reset for nested NPT
KVM: x86/mmu: Optimize and clean up so called "last nonleaf level" logic
KVM: x86: Enhance comments for MMU roles and nested transition trickiness
KVM: x86/mmu: WARN on any reserved SPTE value when making a valid SPTE
KVM: x86/mmu: Add helpers to do full reserved SPTE checks w/ generic MMU
KVM: x86/mmu: Use MMU's role to determine PTTYPE
KVM: x86/mmu: Collapse 32-bit PAE and 64-bit statements for helpers
KVM: x86/mmu: Add a helper to calculate root from role_regs
KVM: x86/mmu: Add helper to update paging metadata
KVM: x86/mmu: Don't update nested guest's paging bitmasks if CR0.PG=0
KVM: x86/mmu: Consolidate reset_rsvds_bits_mask() calls
KVM: x86/mmu: Use MMU role_regs to get LA57, and drop vCPU LA57 helper
KVM: x86/mmu: Get nested MMU's root level from the MMU's role
...
- Optimise SVE switching for CPUs with 128-bit implementations.
- Fix output format from SVE selftest.
- Add support for versions v1.2 and 1.3 of the SMC calling convention.
- Allow Pointer Authentication to be configured independently for
kernel and userspace.
- PMU driver cleanups for managing IRQ affinity and exposing event
attributes via sysfs.
- KASAN optimisations for both hardware tagging (MTE) and out-of-line
software tagging implementations.
- Relax frame record alignment requirements to facilitate 8-byte
alignment with KASAN and Clang.
- Cleanup of page-table definitions and removal of unused memory types.
- Reduction of ARCH_DMA_MINALIGN back to 64 bytes.
- Refactoring of our instruction decoding routines and addition of some
missing encodings.
- Move entry code moved into C and hardened against harmful compiler
instrumentation.
- Update booting requirements for the FEAT_HCX feature, added to v8.7
of the architecture.
- Fix resume from idle when pNMI is being used.
- Additional CPU sanity checks for MTE and preparatory changes for
systems where not all of the CPUs support 32-bit EL0.
- Update our kernel string routines to the latest Cortex Strings
implementation.
- Big cleanup of our cache maintenance routines, which were confusingly
named and inconsistent in their implementations.
- Tweak linker flags so that GDB can understand vmlinux when using RELR
relocations.
- Boot path cleanups to enable early initialisation of per-cpu
operations needed by KCSAN.
- Non-critical fixes and miscellaneous cleanup.
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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:
"There's a reasonable amount here and the juicy details are all below.
It's worth noting that the MTE/KASAN changes strayed outside of our
usual directories due to core mm changes and some associated changes
to some other architectures; Andrew asked for us to carry these [1]
rather that take them via the -mm tree.
Summary:
- Optimise SVE switching for CPUs with 128-bit implementations.
- Fix output format from SVE selftest.
- Add support for versions v1.2 and 1.3 of the SMC calling
convention.
- Allow Pointer Authentication to be configured independently for
kernel and userspace.
- PMU driver cleanups for managing IRQ affinity and exposing event
attributes via sysfs.
- KASAN optimisations for both hardware tagging (MTE) and out-of-line
software tagging implementations.
- Relax frame record alignment requirements to facilitate 8-byte
alignment with KASAN and Clang.
- Cleanup of page-table definitions and removal of unused memory
types.
- Reduction of ARCH_DMA_MINALIGN back to 64 bytes.
- Refactoring of our instruction decoding routines and addition of
some missing encodings.
- Move entry code moved into C and hardened against harmful compiler
instrumentation.
- Update booting requirements for the FEAT_HCX feature, added to v8.7
of the architecture.
- Fix resume from idle when pNMI is being used.
- Additional CPU sanity checks for MTE and preparatory changes for
systems where not all of the CPUs support 32-bit EL0.
- Update our kernel string routines to the latest Cortex Strings
implementation.
- Big cleanup of our cache maintenance routines, which were
confusingly named and inconsistent in their implementations.
- Tweak linker flags so that GDB can understand vmlinux when using
RELR relocations.
- Boot path cleanups to enable early initialisation of per-cpu
operations needed by KCSAN.
- Non-critical fixes and miscellaneous cleanup"
* tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux: (150 commits)
arm64: tlb: fix the TTL value of tlb_get_level
arm64: Restrict undef hook for cpufeature registers
arm64/mm: Rename ARM64_SWAPPER_USES_SECTION_MAPS
arm64: insn: avoid circular include dependency
arm64: smp: Bump debugging information print down to KERN_DEBUG
drivers/perf: fix the missed ida_simple_remove() in ddr_perf_probe()
perf/arm-cmn: Fix invalid pointer when access dtc object sharing the same IRQ number
arm64: suspend: Use cpuidle context helpers in cpu_suspend()
PSCI: Use cpuidle context helpers in psci_cpu_suspend_enter()
arm64: Convert cpu_do_idle() to using cpuidle context helpers
arm64: Add cpuidle context save/restore helpers
arm64: head: fix code comments in set_cpu_boot_mode_flag
arm64: mm: drop unused __pa(__idmap_text_start)
arm64: mm: fix the count comments in compute_indices
arm64/mm: Fix ttbr0 values stored in struct thread_info for software-pan
arm64: mm: Pass original fault address to handle_mm_fault()
arm64/mm: Drop SECTION_[SHIFT|SIZE|MASK]
arm64/mm: Use CONT_PMD_SHIFT for ARM64_MEMSTART_SHIFT
arm64/mm: Drop SWAPPER_INIT_MAP_SIZE
arm64: Conditionally configure PTR_AUTH key of the kernel.
...
- Add the "ratelimit:N" parameter to the split_lock_detect= boot option,
to rate-limit the generation of bus-lock exceptions. This is both
easier on system resources and kinder to offending applications than
the current policy of outright killing them.
- Document the split-lock detection feature and its parameters.
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'x86-splitlock-2021-06-28' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 splitlock updates from Ingo Molnar:
- Add the "ratelimit:N" parameter to the split_lock_detect= boot
option, to rate-limit the generation of bus-lock exceptions.
This is both easier on system resources and kinder to offending
applications than the current policy of outright killing them.
- Document the split-lock detection feature and its parameters.
* tag 'x86-splitlock-2021-06-28' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
Documentation/x86: Add ratelimit in buslock.rst
Documentation/admin-guide: Add bus lock ratelimit
x86/bus_lock: Set rate limit for bus lock
Documentation/x86: Add buslock.rst
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'x86-mm-2021-06-28' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 mm update from Ingo Molnar:
"Do not create the x86/init_pkru debugfs file if the CPU doesn't
support PKRU"
* tag 'x86-mm-2021-06-28' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/pkeys: Skip 'init_pkru' debugfs file creation when pkeys not supported
- Micro-optimize and standardize the do_syscall_64() calling convention
- Make syscall entry flags clearing more conservative
- Clean up syscall table handling
- Clean up & standardize assembly macros, in preparation of FRED
- Misc cleanups and fixes
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'x86-asm-2021-06-28' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 asm updates from Ingo Molnar:
- Micro-optimize and standardize the do_syscall_64() calling convention
- Make syscall entry flags clearing more conservative
- Clean up syscall table handling
- Clean up & standardize assembly macros, in preparation of FRED
- Misc cleanups and fixes
* tag 'x86-asm-2021-06-28' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/asm: Make <asm/asm.h> valid on cross-builds as well
x86/regs: Syscall_get_nr() returns -1 for a non-system call
x86/entry: Split PUSH_AND_CLEAR_REGS into two submacros
x86/syscall: Maximize MSR_SYSCALL_MASK
x86/syscall: Unconditionally prototype {ia32,x32}_sys_call_table[]
x86/entry: Reverse arguments to do_syscall_64()
x86/entry: Unify definitions from <asm/calling.h> and <asm/ptrace-abi.h>
x86/asm: Use _ASM_BYTES() in <asm/nops.h>
x86/asm: Add _ASM_BYTES() macro for a .byte ... opcode sequence
x86/asm: Have the __ASM_FORM macros handle commas in arguments
- Clean up & simplify AP exception handling setup.
- Consolidate the disjoint IDT setup code living in
idt_setup_traps() and idt_setup_ist_traps() into
a single idt_setup_traps() initialization function
and call it before cpu_init().
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'x86-apic-2021-06-28' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 exception handling updates from Ingo Molnar:
- Clean up & simplify AP exception handling setup.
- Consolidate the disjoint IDT setup code living in idt_setup_traps()
and idt_setup_ist_traps() into a single idt_setup_traps()
initialization function and call it before cpu_init().
* tag 'x86-apic-2021-06-28' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/idt: Rework IDT setup for boot CPU
x86/cpu: Init AP exception handling from cpu_init_secondary()
- Changes to core scheduling facilities:
- Add "Core Scheduling" via CONFIG_SCHED_CORE=y, which enables
coordinated scheduling across SMT siblings. This is a much
requested feature for cloud computing platforms, to allow
the flexible utilization of SMT siblings, without exposing
untrusted domains to information leaks & side channels, plus
to ensure more deterministic computing performance on SMT
systems used by heterogenous workloads.
There's new prctls to set core scheduling groups, which
allows more flexible management of workloads that can share
siblings.
- Fix task->state access anti-patterns that may result in missed
wakeups and rename it to ->__state in the process to catch new
abuses.
- Load-balancing changes:
- Tweak newidle_balance for fair-sched, to improve
'memcache'-like workloads.
- "Age" (decay) average idle time, to better track & improve workloads
such as 'tbench'.
- Fix & improve energy-aware (EAS) balancing logic & metrics.
- Fix & improve the uclamp metrics.
- Fix task migration (taskset) corner case on !CONFIG_CPUSET.
- Fix RT and deadline utilization tracking across policy changes
- Introduce a "burstable" CFS controller via cgroups, which allows
bursty CPU-bound workloads to borrow a bit against their future
quota to improve overall latencies & batching. Can be tweaked
via /sys/fs/cgroup/cpu/<X>/cpu.cfs_burst_us.
- Rework assymetric topology/capacity detection & handling.
- Scheduler statistics & tooling:
- Disable delayacct by default, but add a sysctl to enable
it at runtime if tooling needs it. Use static keys and
other optimizations to make it more palatable.
- Use sched_clock() in delayacct, instead of ktime_get_ns().
- Misc cleanups and fixes.
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'sched-core-2021-06-28' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull scheduler udpates from Ingo Molnar:
- Changes to core scheduling facilities:
- Add "Core Scheduling" via CONFIG_SCHED_CORE=y, which enables
coordinated scheduling across SMT siblings. This is a much
requested feature for cloud computing platforms, to allow the
flexible utilization of SMT siblings, without exposing untrusted
domains to information leaks & side channels, plus to ensure more
deterministic computing performance on SMT systems used by
heterogenous workloads.
There are new prctls to set core scheduling groups, which allows
more flexible management of workloads that can share siblings.
- Fix task->state access anti-patterns that may result in missed
wakeups and rename it to ->__state in the process to catch new
abuses.
- Load-balancing changes:
- Tweak newidle_balance for fair-sched, to improve 'memcache'-like
workloads.
- "Age" (decay) average idle time, to better track & improve
workloads such as 'tbench'.
- Fix & improve energy-aware (EAS) balancing logic & metrics.
- Fix & improve the uclamp metrics.
- Fix task migration (taskset) corner case on !CONFIG_CPUSET.
- Fix RT and deadline utilization tracking across policy changes
- Introduce a "burstable" CFS controller via cgroups, which allows
bursty CPU-bound workloads to borrow a bit against their future
quota to improve overall latencies & batching. Can be tweaked via
/sys/fs/cgroup/cpu/<X>/cpu.cfs_burst_us.
- Rework assymetric topology/capacity detection & handling.
- Scheduler statistics & tooling:
- Disable delayacct by default, but add a sysctl to enable it at
runtime if tooling needs it. Use static keys and other
optimizations to make it more palatable.
- Use sched_clock() in delayacct, instead of ktime_get_ns().
- Misc cleanups and fixes.
* tag 'sched-core-2021-06-28' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (72 commits)
sched/doc: Update the CPU capacity asymmetry bits
sched/topology: Rework CPU capacity asymmetry detection
sched/core: Introduce SD_ASYM_CPUCAPACITY_FULL sched_domain flag
psi: Fix race between psi_trigger_create/destroy
sched/fair: Introduce the burstable CFS controller
sched/uclamp: Fix uclamp_tg_restrict()
sched/rt: Fix Deadline utilization tracking during policy change
sched/rt: Fix RT utilization tracking during policy change
sched: Change task_struct::state
sched,arch: Remove unused TASK_STATE offsets
sched,timer: Use __set_current_state()
sched: Add get_current_state()
sched,perf,kvm: Fix preemption condition
sched: Introduce task_is_running()
sched: Unbreak wakeups
sched/fair: Age the average idle time
sched/cpufreq: Consider reduced CPU capacity in energy calculation
sched/fair: Take thermal pressure into account while estimating energy
thermal/cpufreq_cooling: Update offline CPUs per-cpu thermal_pressure
sched/fair: Return early from update_tg_cfs_load() if delta == 0
...
- Platform PMU driver updates:
- x86 Intel uncore driver updates for Skylake (SNR) and Icelake (ICX) servers
- Fix RDPMC support
- Fix [extended-]PEBS-via-PT support
- Fix Sapphire Rapids event constraints
- Fix :ppp support on Sapphire Rapids
- Fix fixed counter sanity check on Alder Lake & X86_FEATURE_HYBRID_CPU
- Other heterogenous-PMU fixes
- Kprobes:
- Remove the unused and misguided kprobe::fault_handler callbacks.
- Warn about kprobes taking a page fault.
- Fix the 'nmissed' stat counter.
- Misc cleanups and fixes.
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'perf-core-2021-06-28' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull perf events updates from Ingo Molnar:
- Platform PMU driver updates:
- x86 Intel uncore driver updates for Skylake (SNR) and Icelake (ICX) servers
- Fix RDPMC support
- Fix [extended-]PEBS-via-PT support
- Fix Sapphire Rapids event constraints
- Fix :ppp support on Sapphire Rapids
- Fix fixed counter sanity check on Alder Lake & X86_FEATURE_HYBRID_CPU
- Other heterogenous-PMU fixes
- Kprobes:
- Remove the unused and misguided kprobe::fault_handler callbacks.
- Warn about kprobes taking a page fault.
- Fix the 'nmissed' stat counter.
- Misc cleanups and fixes.
* tag 'perf-core-2021-06-28' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
perf: Fix task context PMU for Hetero
perf/x86/intel: Fix instructions:ppp support in Sapphire Rapids
perf/x86/intel: Add more events requires FRONTEND MSR on Sapphire Rapids
perf/x86/intel: Fix fixed counter check warning for some Alder Lake
perf/x86/intel: Fix PEBS-via-PT reload base value for Extended PEBS
perf/x86: Reset the dirty counter to prevent the leak for an RDPMC task
kprobes: Do not increment probe miss count in the fault handler
x86,kprobes: WARN if kprobes tries to handle a fault
kprobes: Remove kprobe::fault_handler
uprobes: Update uprobe_write_opcode() kernel-doc comment
perf/hw_breakpoint: Fix DocBook warnings in perf hw_breakpoint
perf/core: Fix DocBook warnings
perf/core: Make local function perf_pmu_snapshot_aux() static
perf/x86/intel/uncore: Enable I/O stacks to IIO PMON mapping on ICX
perf/x86/intel/uncore: Enable I/O stacks to IIO PMON mapping on SNR
perf/x86/intel/uncore: Generalize I/O stacks to PMON mapping procedure
perf/x86/intel/uncore: Drop unnecessary NULL checks after container_of()
- Core locking & atomics:
- Convert all architectures to ARCH_ATOMIC: move every
architecture to ARCH_ATOMIC, then get rid of ARCH_ATOMIC
and all the transitory facilities and #ifdefs.
Much reduction in complexity from that series:
63 files changed, 756 insertions(+), 4094 deletions(-)
- Self-test enhancements
- Futexes:
- Add the new FUTEX_LOCK_PI2 ABI, which is a variant that
doesn't set FLAGS_CLOCKRT (.e. uses CLOCK_MONOTONIC).
[ The temptation to repurpose FUTEX_LOCK_PI's implicit
setting of FLAGS_CLOCKRT & invert the flag's meaning
to avoid having to introduce a new variant was
resisted successfully. ]
- Enhance futex self-tests
- Lockdep:
- Fix dependency path printouts
- Optimize trace saving
- Broaden & fix wait-context checks
- Misc cleanups and fixes.
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'locking-core-2021-06-28' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull locking updates from Ingo Molnar:
- Core locking & atomics:
- Convert all architectures to ARCH_ATOMIC: move every architecture
to ARCH_ATOMIC, then get rid of ARCH_ATOMIC and all the
transitory facilities and #ifdefs.
Much reduction in complexity from that series:
63 files changed, 756 insertions(+), 4094 deletions(-)
- Self-test enhancements
- Futexes:
- Add the new FUTEX_LOCK_PI2 ABI, which is a variant that doesn't
set FLAGS_CLOCKRT (.e. uses CLOCK_MONOTONIC).
[ The temptation to repurpose FUTEX_LOCK_PI's implicit setting of
FLAGS_CLOCKRT & invert the flag's meaning to avoid having to
introduce a new variant was resisted successfully. ]
- Enhance futex self-tests
- Lockdep:
- Fix dependency path printouts
- Optimize trace saving
- Broaden & fix wait-context checks
- Misc cleanups and fixes.
* tag 'locking-core-2021-06-28' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (52 commits)
locking/lockdep: Correct the description error for check_redundant()
futex: Provide FUTEX_LOCK_PI2 to support clock selection
futex: Prepare futex_lock_pi() for runtime clock selection
lockdep/selftest: Remove wait-type RCU_CALLBACK tests
lockdep/selftests: Fix selftests vs PROVE_RAW_LOCK_NESTING
lockdep: Fix wait-type for empty stack
locking/selftests: Add a selftest for check_irq_usage()
lockding/lockdep: Avoid to find wrong lock dep path in check_irq_usage()
locking/lockdep: Remove the unnecessary trace saving
locking/lockdep: Fix the dep path printing for backwards BFS
selftests: futex: Add futex compare requeue test
selftests: futex: Add futex wait test
seqlock: Remove trailing semicolon in macros
locking/lockdep: Reduce LOCKDEP dependency list
locking/lockdep,doc: Improve readability of the block matrix
locking/atomics: atomic-instrumented: simplify ifdeffery
locking/atomic: delete !ARCH_ATOMIC remnants
locking/atomic: xtensa: move to ARCH_ATOMIC
locking/atomic: sparc: move to ARCH_ATOMIC
locking/atomic: sh: move to ARCH_ATOMIC
...
kernel tooling such as kpatch-build.
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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mergetag object d33b9035e1
type commit
tag objtool-core-2021-06-28
tagger Ingo Molnar <mingo@kernel.org> 1624859477 +0200
The biggest change in this cycle is the new code to handle
and rewrite variable sized jump labels - which results in
slightly tighter code generation in hot paths, through the
use of short(er) NOPs.
Also a number of cleanups and fixes, and a change to the
generic include/linux/compiler.h to handle a s390 GCC quirk.
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tags 'objtool-urgent-2021-06-28' and 'objtool-core-2021-06-28' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull objtool fix and updates from Ingo Molnar:
"An ELF format fix for a section flags mismatch bug that breaks kernel
tooling such as kpatch-build.
The biggest change in this cycle is the new code to handle and rewrite
variable sized jump labels - which results in slightly tighter code
generation in hot paths, through the use of short(er) NOPs.
Also a number of cleanups and fixes, and a change to the generic
include/linux/compiler.h to handle a s390 GCC quirk"
* tag 'objtool-urgent-2021-06-28' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
objtool: Don't make .altinstructions writable
* tag 'objtool-core-2021-06-28' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
objtool: Improve reloc hash size guestimate
instrumentation.h: Avoid using inline asm operand modifiers
compiler.h: Avoid using inline asm operand modifiers
kbuild: Fix objtool dependency for 'OBJECT_FILES_NON_STANDARD_<obj> := n'
objtool: Reflow handle_jump_alt()
jump_label/x86: Remove unused JUMP_LABEL_NOP_SIZE
jump_label, x86: Allow short NOPs
objtool: Provide stats for jump_labels
objtool: Rewrite jump_label instructions
objtool: Decode jump_entry::key addend
jump_label, x86: Emit short JMP
jump_label: Free jump_entry::key bit1 for build use
jump_label, x86: Add variable length patching support
jump_label, x86: Introduce jump_entry_size()
jump_label, x86: Improve error when we fail expected text
jump_label, x86: Factor out the __jump_table generation
jump_label, x86: Strip ASM jump_label support
x86, objtool: Dont exclude arch/x86/realmode/
objtool: Rewrite hashtable sizing
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'efi-core-2021-06-28' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull EFI updates from Ingo Molnar:
"Two driver API cleanups, and a log message tweak"
* tag 'efi-core-2021-06-28' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/efi: Log 32/64-bit mismatch with kernel as an error
efi/dev-path-parser: Switch to use for_each_acpi_dev_match()
efi/apple-properties: Handle device properties with software node API
on code executed in the guest and handle the case where failure to
get the RIP would result in a #GP, as it should, instead of in a #PF
- Disable interrupts while the per-CPU GHCB is held
- Split the #VC handler depending on where the #VC exception has
happened and therefore provide for precise context tracking like the
rest of the exception handlers deal with noinstr regions now
- Add defines for the GHCB version 2 protocol so that further shared
development with KVM can happen without merge conflicts
- The usual small cleanups
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Merge tag 'x86_sev_for_v5.14_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 SEV updates from Borislav Petkov:
- Differentiate the type of exception the #VC handler raises depending
on code executed in the guest and handle the case where failure to
get the RIP would result in a #GP, as it should, instead of in a #PF
- Disable interrupts while the per-CPU GHCB is held
- Split the #VC handler depending on where the #VC exception has
happened and therefore provide for precise context tracking like the
rest of the exception handlers deal with noinstr regions now
- Add defines for the GHCB version 2 protocol so that further shared
development with KVM can happen without merge conflicts
- The usual small cleanups
* tag 'x86_sev_for_v5.14_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/sev: Use "SEV: " prefix for messages from sev.c
x86/sev: Add defines for GHCB version 2 MSR protocol requests
x86/sev: Split up runtime #VC handler for correct state tracking
x86/sev: Make sure IRQs are disabled while GHCB is active
x86/sev: Propagate #GP if getting linear instruction address failed
x86/insn: Extend error reporting from insn_fetch_from_user[_inatomic]()
x86/insn-eval: Make 0 a valid RIP for insn_get_effective_ip()
x86/sev: Fix error message in runtime #VC handler
Christoph Hellwig
Linus Torvalds
Naoya Horiguchi
Mike Rapoport
Daniel Axtens
Souptick Joarder
Chen Li
Liam Howlett
David Hildenbrand
Arnd Bergmann
Randy Dunlap
Rafael J. Wysocki