kvm_fixup_and_inject_pf_error() was introduced to fixup the error code(
e.g., to add RSVD flag) and inject the #PF to the guest, when guest
MAXPHYADDR is smaller than the host one.
When it comes to nested, L0 is expected to intercept and fix up the #PF
and then inject to L2 directly if
- L2.MAXPHYADDR < L0.MAXPHYADDR and
- L1 has no intention to intercept L2's #PF (e.g., L2 and L1 have the
same MAXPHYADDR value && L1 is using EPT for L2),
instead of constructing a #PF VM Exit to L1. Currently, with PFEC_MASK
and PFEC_MATCH both set to 0 in vmcs02, the interception and injection
may happen on all L2 #PFs.
However, failing to initialize 'fault' in kvm_fixup_and_inject_pf_error()
may cause the fault.async_page_fault being NOT zeroed, and later the #PF
being treated as a nested async page fault, and then being injected to L1.
Instead of zeroing 'fault' at the beginning of this function, we mannually
set the value of 'fault.async_page_fault', because false is the value we
really expect.
Fixes: 897861479c ("KVM: x86: Add helper functions for illegal GPA checking and page fault injection")
Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=216178
Reported-by: Yang Lixiao <lixiao.yang@intel.com>
Signed-off-by: Yu Zhang <yu.c.zhang@linux.intel.com>
Reviewed-by: Sean Christopherson <seanjc@google.com>
Message-Id: <20220718074756.53788-1-yu.c.zhang@linux.intel.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Bug the VM if retrieving the x2APIC MSR/register while processing an
accelerated vAPIC trap VM-Exit fails. In theory it's impossible for the
lookup to fail as hardware has already validated the register, but bugs
happen, and not checking the result of kvm_lapic_msr_read() would result
in consuming the uninitialized "val" if a KVM or hardware bug occurs.
Fixes: 1bd9dfec9f ("KVM: x86: Do not block APIC write for non ICR registers")
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Cc: Suravee Suthikulpanit <suravee.suthikulpanit@amd.com>
Signed-off-by: Sean Christopherson <seanjc@google.com>
Message-Id: <20220804235028.1766253-1-seanjc@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Commit 7e2175ebd6 ("KVM: x86: Fix recording of guest steal time
/ preempted status", 2021-11-11) open coded the previous call to
kvm_map_gfn, but in doing so it dropped the comparison between the cached
guest physical address and the one in the MSR. This cause an incorrect
cache hit if the guest modifies the steal time address while the memslots
remain the same. This can happen with kexec, in which case the preempted
bit is written at the address used by the old kernel instead of
the old one.
Cc: David Woodhouse <dwmw@amazon.co.uk>
Cc: stable@vger.kernel.org
Fixes: 7e2175ebd6 ("KVM: x86: Fix recording of guest steal time / preempted status")
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Commit 7e2175ebd6 ("KVM: x86: Fix recording of guest steal time
/ preempted status", 2021-11-11) open coded the previous call to
kvm_map_gfn, but in doing so it dropped the comparison between the cached
guest physical address and the one in the MSR. This cause an incorrect
cache hit if the guest modifies the steal time address while the memslots
remain the same. This can happen with kexec, in which case the steal
time data is written at the address used by the old kernel instead of
the old one.
While at it, rename the variable from gfn to gpa since it is a plain
physical address and not a right-shifted one.
Reported-by: Dave Young <ruyang@redhat.com>
Reported-by: Xiaoying Yan <yiyan@redhat.com>
Analyzed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Cc: David Woodhouse <dwmw@amazon.co.uk>
Cc: stable@vger.kernel.org
Fixes: 7e2175ebd6 ("KVM: x86: Fix recording of guest steal time / preempted status")
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Commit 49de12ba06 ("selftests: drop KSFT_KHDR_INSTALL make target")
dropped from tools/testing/selftests/lib.mk the code related to KSFT_KHDR_INSTALL,
but in doing so it also dropped the definition of the ARCH variable. The ARCH
variable is used in several subdirectories, but kvm/ is the only one of these
that was using KSFT_KHDR_INSTALL.
As a result, kvm selftests cannot be built anymore:
In file included from include/x86_64/vmx.h:12,
from x86_64/vmx_pmu_caps_test.c:18:
include/x86_64/processor.h:15:10: fatal error: asm/msr-index.h: No such file or directory
15 | #include <asm/msr-index.h>
| ^~~~~~~~~~~~~~~~~
In file included from ../../../../tools/include/asm/atomic.h:6,
from ../../../../tools/include/linux/atomic.h:5,
from rseq_test.c:15:
../../../../tools/include/asm/../../arch/x86/include/asm/atomic.h:11:10: fatal error: asm/cmpxchg.h: No such file or directory
11 | #include <asm/cmpxchg.h>
| ^~~~~~~~~~~~~~~
Fix it by including the definition that was present in lib.mk.
Fixes: 49de12ba06 ("selftests: drop KSFT_KHDR_INSTALL make target")
Cc: Guillaume Tucker <guillaume.tucker@collabora.com>
Cc: Anders Roxell <anders.roxell@linaro.org>
Cc: Shuah Khan <skhan@linuxfoundation.org>
Cc: linux-kselftest@vger.kernel.org
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
A list of devices to be reset is already created in
amdgpu_device_gpu_recover function. Creating another list with the
same nodes is incorrect and not supported in list_head. Instead, pass
the device list as part of reset context.
Fixes: 9e08564727 (drm/amdgpu: Refactor mode2 reset logic for v13.0.2)
Signed-off-by: Lijo Lazar <lijo.lazar@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Add missing headers to solve the following warnings from sparse:
drivers/gpu/drm/amd/amdgpu/../display/dc/dml/dcn20/dcn20_fpu.c:656:17: warning: symbol 'ddr4_wm_table_gs' was not declared. Should it be static?
drivers/gpu/drm/amd/amdgpu/../display/dc/dml/dcn20/dcn20_fpu.c:693:17: warning: symbol 'lpddr4_wm_table_gs' was not declared. Should it be static?
drivers/gpu/drm/amd/amdgpu/../display/dc/dml/dcn20/dcn20_fpu.c:730:17: warning: symbol 'lpddr4_wm_table_with_disabled_ppt' was not declared. Should it be static?
drivers/gpu/drm/amd/amdgpu/../display/dc/dml/dcn20/dcn20_fpu.c:767:17: warning: symbol 'ddr4_wm_table_rn' was not declared. Should it be static?
drivers/gpu/drm/amd/amdgpu/../display/dc/dml/dcn20/dcn20_fpu.c:804:17: warning: symbol 'ddr4_1R_wm_table_rn' was not declared. Should it be static?
drivers/gpu/drm/amd/amdgpu/../display/dc/dml/dcn20/dcn20_fpu.c:841:17: warning: symbol 'lpddr4_wm_table_rn' was not declared. Should it be static?
drivers/gpu/drm/amd/amdgpu/../display/dc/dml/dcn301/dcn301_fpu.c:217:17: warning: symbol 'ddr4_wm_table' was not declared. Should it be static?
drivers/gpu/drm/amd/amdgpu/../display/dc/dml/dcn301/dcn301_fpu.c:254:17: warning: symbol 'lpddr5_wm_table' was not declared. Should it be static?
drivers/gpu/drm/amd/amdgpu/../display/dc/dml/dcn31/dcn31_fpu.c:53:30: warning: symbol 'dcn3_1_ip' was not declared. Should it be static?
drivers/gpu/drm/amd/amdgpu/../display/dc/dml/dcn31/dcn31_fpu.c:197:30: warning: symbol 'dcn3_15_ip' was not declared. Should it be static?
drivers/gpu/drm/amd/amdgpu/../display/dc/dml/dcn31/dcn31_fpu.c:293:30: warning: symbol 'dcn3_16_ip' was not declared. Should it be static?
Fixes: 1a3408259b ("drm/amd/display: move FPU code on dcn21 clk_mgr")
Fixes: 5085e0361f ("drm/amd/display: move FPU code from dcn301 clk mgr to DML folder")
Fixes: 26f4712aed ("drm/amd/display: move FPU related code from dcn31 to dml/dcn31 folder")
Fixes: fa896297b3 ("drm/amd/display: move FPU related code from dcn315 to dml/dcn31 folder")
Fixes: 3f8951cc12 ("drm/amd/display: move FPU related code from dcn316 to dml/dcn31 folder")
Signed-off-by: Magali Lemes <magalilemes00@gmail.com>
Reviewed-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Reviewed-by: Maíra Canal <mairacanal@riseup.net>
Reviewed-by: Melissa Wen <mwen@igalia.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Update the vram width algorithm for vram_info v3_0 to align with the
changes of latest IFWI.
Signed-off-by: Likun Gao <Likun.Gao@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org # 5.19.x
Separately accumulate a statistic of rounded up allocations to use
to report availability, with a view to increasing the likelihood a
buffer object can be successfully allocated at exactly the size
reported by the availability API.
Signed-off-by: Daniel Phillips <daniel.phillips@amd.com>
Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Rounding up allocations in the allocation path caused test regressions,
so now just round in the availability path.
Signed-off-by: Daniel Phillips <daniel.phillips@amd.com>
Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Since "rn_clk_mgr.h" needs ‘struct clk_mgr_internal’ which is declared
in "clk_mgr_internal.h", include "clk_mgr_internal.h" in "rn_clk_mgr.h"
instead of in its source file.
Because of the change above, change the order of '#include
"rn_clk_mgr.h"', so that the necessary structs are visible to
dcn20_clk_mgr.h.
Signed-off-by: Magali Lemes <magalilemes00@gmail.com>
Reviewed-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Reviewed-by: Maíra Canal <mairacanal@riseup.net>
Reviewed-by: Melissa Wen <mwen@igalia.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
As "dcn3_1_soc", "dcn3_15_soc", and "dcn3_16_soc" are not used outside
of their corresponding "dcn3*_fpu.c", make them static and remove their
extern declaration.
Fixes: 26f4712aed ("drm/amd/display: move FPU related code from dcn31 to dml/dcn31 folder")
Fixes: fa896297b3 ("drm/amd/display: move FPU related code from dcn315 to dml/dcn31 folder")
Fixes: 3f8951cc12 ("drm/amd/display: move FPU related code from dcn316 to dml/dcn31 folder")
Signed-off-by: Magali Lemes <magalilemes00@gmail.com>
Reviewed-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Reviewed-by: Maíra Canal <mairacanal@riseup.net>
Reviewed-by: Melissa Wen <mwen@igalia.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
There are two identical CFLAGS entries for "display_mode_vba_20.o", so
remove one of them. Also, as there's already an entry for
"display_mode_lib.o" CFLAGS, regardless of CONFIG_DRM_AMD_DC_DCN being
defined or not, remove the one entry between CONFIG_DRM_AMD_DC_DCN ifdef
guards.
Signed-off-by: Magali Lemes <magalilemes00@gmail.com>
Reviewed-by: André Almeida <andrealmeid@igalia.com>
Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This reverts commit bac4b41d91.
This commit was a part of a patchset responsible for reducing the stack
size. However, after some other changes, this commit becomes
unnecessary, so we are reverting it here.
Cc: Aurabindo Pillai <aurabindo.pillai@amd.com>
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This reverts commit c3b3f9ba25.
This commit was a part of a patchset responsible for reducing the stack
size. However, after some other changes, this commit becomes
unnecessary, so we are reverting it here.
Cc: Aurabindo Pillai <aurabindo.pillai@amd.com>
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This reverts commit 3c3abac601.
This commit was a part of a patchset responsible for reducing the stack
size. However, after some other changes, this commit becomes
unnecessary, so we are reverting it here.
Cc: Aurabindo Pillai <aurabindo.pillai@amd.com>
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This reverts commit 86e4863e67.
This commit was a part of a patchset responsible for reducing the stack
size. However, after some other changes, this commit becomes
unnecessary, so we are reverting it here.
Cc: Aurabindo Pillai <aurabindo.pillai@amd.com>
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
[Why&How]
Add the missing definition to set the register field
HBLANK_MINIMUM_SYMBOL_WIDTH
Signed-off-by: Aurabindo Pillai <aurabindo.pillai@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Fix two regressions in nct6775 and lm90 drivers
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Merge tag 'hwmon-fixes-for-v6.0-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging
Pull hwmon fixes from Guenter Roeck:
"Fix two regressions in nct6775 and lm90 drivers"
* tag 'hwmon-fixes-for-v6.0-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging:
hwmon: (nct6775) Fix platform driver suspend regression
hwmon: (lm90) Fix error return value from detect function
- hardware poisoning support for 1GB hugepages, from Naoya Horiguchi
- highmem documentation fixups from Fabio De Francesco
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Merge tag 'mm-stable-2022-08-09' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
Pull remaining MM updates from Andrew Morton:
"Three patch series - two that perform cleanups and one feature:
- hugetlb_vmemmap cleanups from Muchun Song
- hardware poisoning support for 1GB hugepages, from Naoya Horiguchi
- highmem documentation fixups from Fabio De Francesco"
* tag 'mm-stable-2022-08-09' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: (23 commits)
Documentation/mm: add details about kmap_local_page() and preemption
highmem: delete a sentence from kmap_local_page() kdocs
Documentation/mm: rrefer kmap_local_page() and avoid kmap()
Documentation/mm: avoid invalid use of addresses from kmap_local_page()
Documentation/mm: don't kmap*() pages which can't come from HIGHMEM
highmem: specify that kmap_local_page() is callable from interrupts
highmem: remove unneeded spaces in kmap_local_page() kdocs
mm, hwpoison: enable memory error handling on 1GB hugepage
mm, hwpoison: skip raw hwpoison page in freeing 1GB hugepage
mm, hwpoison: make __page_handle_poison returns int
mm, hwpoison: set PG_hwpoison for busy hugetlb pages
mm, hwpoison: make unpoison aware of raw error info in hwpoisoned hugepage
mm, hwpoison, hugetlb: support saving mechanism of raw error pages
mm/hugetlb: make pud_huge() and follow_huge_pud() aware of non-present pud entry
mm/hugetlb: check gigantic_page_runtime_supported() in return_unused_surplus_pages()
mm: hugetlb_vmemmap: use PTRS_PER_PTE instead of PMD_SIZE / PAGE_SIZE
mm: hugetlb_vmemmap: move code comments to vmemmap_dedup.rst
mm: hugetlb_vmemmap: improve hugetlb_vmemmap code readability
mm: hugetlb_vmemmap: replace early_param() with core_param()
mm: hugetlb_vmemmap: move vmemmap code related to HugeTLB to hugetlb_vmemmap.c
...
- Introduce a 'struct cxl_region' object with support for provisioning
and assembling persistent memory regions.
- Introduce alloc_free_mem_region() to accompany the existing
request_free_mem_region() as a method to allocate physical memory
capacity out of an existing resource.
- Export insert_resource_expand_to_fit() for the CXL subsystem to
late-publish CXL platform windows in iomem_resource.
- Add a polled mode PCI DOE (Data Object Exchange) driver service and
use it in cxl_pci to retrieve the CDAT (Coherent Device Attribute
Table).
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Merge tag 'cxl-for-6.0' of git://git.kernel.org/pub/scm/linux/kernel/git/cxl/cxl
Pull cxl updates from Dan Williams:
"Compute Express Link (CXL) updates for 6.0:
- Introduce a 'struct cxl_region' object with support for
provisioning and assembling persistent memory regions.
- Introduce alloc_free_mem_region() to accompany the existing
request_free_mem_region() as a method to allocate physical memory
capacity out of an existing resource.
- Export insert_resource_expand_to_fit() for the CXL subsystem to
late-publish CXL platform windows in iomem_resource.
- Add a polled mode PCI DOE (Data Object Exchange) driver service and
use it in cxl_pci to retrieve the CDAT (Coherent Device Attribute
Table)"
* tag 'cxl-for-6.0' of git://git.kernel.org/pub/scm/linux/kernel/git/cxl/cxl: (74 commits)
cxl/hdm: Fix skip allocations vs multiple pmem allocations
cxl/region: Disallow region granularity != window granularity
cxl/region: Fix x1 interleave to greater than x1 interleave routing
cxl/region: Move HPA setup to cxl_region_attach()
cxl/region: Fix decoder interleave programming
Documentation: cxl: remove dangling kernel-doc reference
cxl/region: describe targets and nr_targets members of cxl_region_params
cxl/regions: add padding for cxl_rr_ep_add nested lists
cxl/region: Fix IS_ERR() vs NULL check
cxl/region: Fix region reference target accounting
cxl/region: Fix region commit uninitialized variable warning
cxl/region: Fix port setup uninitialized variable warnings
cxl/region: Stop initializing interleave granularity
cxl/hdm: Fix DPA reservation vs cxl_endpoint_decoder lifetime
cxl/acpi: Minimize granularity for x1 interleaves
cxl/region: Delete 'region' attribute from root decoders
cxl/acpi: Autoload driver for 'cxl_acpi' test devices
cxl/region: decrement ->nr_targets on error in cxl_region_attach()
cxl/region: prevent underflow in ways_to_cxl()
cxl/region: uninitialized variable in alloc_hpa()
...
Core changes:
- Add PINCTRL_PINGROUP() helper macro (and use it in the AMD driver).
New drivers:
- Intel Meteor Lake support.
- Reneasas RZ/V2M and r8a779g0 (R-Car V4H).
- AXP209 variants AXP221, AXP223 and AXP809.
- Qualcomm MSM8909, PM8226, PMP8074 and SM6375.
- Allwinner D1.
Improvements:
- Proper pin multiplexing in the AMD driver.
- Mediatek MT8192 can use generic drive strength and pin
bias, then fixes on top plus some I2C pin group fixes.
- Have the Allwinner Sunplus SP7021 use the generic DT schema and
make interrupts optional.
- Handle Qualcomm SC7280 ADSP.
- Handle Qualcomm MSM8916 CAMSS GP clock muxing.
- High impedance bias on ZynqMP.
- Serialize StarFive access to MMIO.
- Immutable gpiochip for BCM2835, Ingenic, Qualcomm SPMI GPIO.
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Merge tag 'pinctrl-v6.0-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl
Pull pin control updates from Linus Walleij:
"Outside the pinctrl driver and DT bindings we hit some Arm DT files,
patched by the maintainers.
Other than that it is business as usual.
Core changes:
- Add PINCTRL_PINGROUP() helper macro (and use it in the AMD driver).
New drivers:
- Intel Meteor Lake support.
- Reneasas RZ/V2M and r8a779g0 (R-Car V4H).
- AXP209 variants AXP221, AXP223 and AXP809.
- Qualcomm MSM8909, PM8226, PMP8074 and SM6375.
- Allwinner D1.
Improvements:
- Proper pin multiplexing in the AMD driver.
- Mediatek MT8192 can use generic drive strength and pin bias, then
fixes on top plus some I2C pin group fixes.
- Have the Allwinner Sunplus SP7021 use the generic DT schema and
make interrupts optional.
- Handle Qualcomm SC7280 ADSP.
- Handle Qualcomm MSM8916 CAMSS GP clock muxing.
- High impedance bias on ZynqMP.
- Serialize StarFive access to MMIO.
- Immutable gpiochip for BCM2835, Ingenic, Qualcomm SPMI GPIO"
* tag 'pinctrl-v6.0-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl: (117 commits)
dt-bindings: pinctrl: qcom,pmic-gpio: add PM8226 constraints
pinctrl: qcom: Make PINCTRL_SM8450 depend on PINCTRL_MSM
pinctrl: qcom: sm8250: Fix PDC map
pinctrl: amd: Fix an unused variable
dt-bindings: pinctrl: mt8186: Add and use drive-strength-microamp
dt-bindings: pinctrl: mt8186: Add gpio-line-names property
ARM: dts: imxrt1170-pinfunc: Add pinctrl binding header
pinctrl: amd: Use unicode for debugfs output
pinctrl: amd: Fix newline declaration in debugfs output
pinctrl: at91: Fix typo 'the the' in comment
dt-bindings: pinctrl: st,stm32: Correct 'resets' property name
pinctrl: mvebu: Missing a blank line after declarations.
pinctrl: qcom: Add SM6375 TLMM driver
dt-bindings: pinctrl: Add DT schema for SM6375 TLMM
dt-bindings: pinctrl: mt8195: Use drive-strength-microamp in examples
Revert "pinctrl: qcom: spmi-gpio: make the irqchip immutable"
pinctrl: imx93: Add MODULE_DEVICE_TABLE()
pinctrl: sunxi: Add driver for Allwinner D1
pinctrl: sunxi: Make some layout parameters dynamic
pinctrl: sunxi: Refactor register/offset calculation
...
- Convert secid mapping to XArrays instead of IDR
- Add a kernel label to use on kernel objects
- Extend policydb permission set by making use of the xbits
- Make export of raw binary profile to userspace optional
- Enable tuning of policy paranoid load for embedded systems
- Don't create raw_sha1 symlink if sha1 hashing is disabled
- Allow labels to carry debug flags
+ Cleanups
- Update MAINTAINERS file
- Use struct_size() helper in kmalloc()
- Move ptrace mediation to more logical task.{h,c}
- Resolve uninitialized symbol warnings
- Remove redundant ret variable
- Mark alloc_unconfined() as static
- Update help description of policy hash for introspection
- Remove some casts which are no-longer required
+ Bug Fixes
- Fix aa_label_asxprint return check
- Fix reference count leak in aa_pivotroot()
- Fix memleak in aa_simple_write_to_buffer()
- Fix kernel doc comments
- Fix absroot causing audited secids to begin with =
- Fix quiet_denied for file rules
- Fix failed mount permission check error message
- Disable showing the mode as part of a secid to secctx
- Fix setting unconfined mode on a loaded profile
- Fix overlapping attachment computation
- Fix undefined reference to `zlib_deflate_workspacesize'
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Merge tag 'apparmor-pr-2022-08-08' of git://git.kernel.org/pub/scm/linux/kernel/git/jj/linux-apparmor
Pull AppArmor updates from John Johansen:
"This is mostly cleanups and bug fixes with the one bigger change being
Mathew Wilcox's patch to use XArrays instead of the IDR from the
thread around the locking weirdness.
Features:
- Convert secid mapping to XArrays instead of IDR
- Add a kernel label to use on kernel objects
- Extend policydb permission set by making use of the xbits
- Make export of raw binary profile to userspace optional
- Enable tuning of policy paranoid load for embedded systems
- Don't create raw_sha1 symlink if sha1 hashing is disabled
- Allow labels to carry debug flags
Cleanups:
- Update MAINTAINERS file
- Use struct_size() helper in kmalloc()
- Move ptrace mediation to more logical task.{h,c}
- Resolve uninitialized symbol warnings
- Remove redundant ret variable
- Mark alloc_unconfined() as static
- Update help description of policy hash for introspection
- Remove some casts which are no-longer required
Bug Fixes:
- Fix aa_label_asxprint return check
- Fix reference count leak in aa_pivotroot()
- Fix memleak in aa_simple_write_to_buffer()
- Fix kernel doc comments
- Fix absroot causing audited secids to begin with =
- Fix quiet_denied for file rules
- Fix failed mount permission check error message
- Disable showing the mode as part of a secid to secctx
- Fix setting unconfined mode on a loaded profile
- Fix overlapping attachment computation
- Fix undefined reference to `zlib_deflate_workspacesize'"
* tag 'apparmor-pr-2022-08-08' of git://git.kernel.org/pub/scm/linux/kernel/git/jj/linux-apparmor: (34 commits)
apparmor: Update MAINTAINERS file with new email address
apparmor: correct config reference to intended one
apparmor: move ptrace mediation to more logical task.{h,c}
apparmor: extend policydb permission set by making use of the xbits
apparmor: allow label to carry debug flags
apparmor: fix overlapping attachment computation
apparmor: fix setting unconfined mode on a loaded profile
apparmor: Fix some kernel-doc comments
apparmor: Mark alloc_unconfined() as static
apparmor: disable showing the mode as part of a secid to secctx
apparmor: Convert secid mapping to XArrays instead of IDR
apparmor: add a kernel label to use on kernel objects
apparmor: test: Remove some casts which are no-longer required
apparmor: Fix memleak in aa_simple_write_to_buffer()
apparmor: fix reference count leak in aa_pivotroot()
apparmor: Fix some kernel-doc comments
apparmor: Fix undefined reference to `zlib_deflate_workspacesize'
apparmor: fix aa_label_asxprint return check
apparmor: Fix some kernel-doc comments
apparmor: Fix some kernel-doc comments
...
- Remove the support for -O3 (CONFIG_CC_OPTIMIZE_FOR_PERFORMANCE_O3)
- Fix error of rpm-pkg cross-builds
- Support riscv for checkstack tool
- Re-enable -Wformwat warnings for Clang
- Clean up modpost, Makefiles, and misc scripts
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Merge tag 'kbuild-v5.20' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild
Pull Kbuild updates from Masahiro Yamada:
- Remove the support for -O3 (CONFIG_CC_OPTIMIZE_FOR_PERFORMANCE_O3)
- Fix error of rpm-pkg cross-builds
- Support riscv for checkstack tool
- Re-enable -Wformwat warnings for Clang
- Clean up modpost, Makefiles, and misc scripts
* tag 'kbuild-v5.20' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild: (30 commits)
modpost: remove .symbol_white_list field entirely
modpost: remove unneeded .symbol_white_list initializers
modpost: add PATTERNS() helper macro
modpost: shorten warning messages in report_sec_mismatch()
Revert "Kbuild, lto, workaround: Don't warn for initcall_reference in modpost"
modpost: use more reliable way to get fromsec in section_rel(a)()
modpost: add array range check to sec_name()
modpost: refactor get_secindex()
kbuild: set EXIT trap before creating temporary directory
modpost: remove unused Elf_Sword macro
Makefile.extrawarn: re-enable -Wformat for clang
kbuild: add dtbs_prepare target
kconfig: Qt5: tell the user which packages are required
modpost: use sym_get_data() to get module device_table data
modpost: drop executable ELF support
checkstack: add riscv support for scripts/checkstack.pl
kconfig: shorten the temporary directory name for cc-option
scripts: headers_install.sh: Update config leak ignore entries
kbuild: error out if $(INSTALL_MOD_PATH) contains % or :
kbuild: error out if $(KBUILD_EXTMOD) contains % or :
...
Many cases do not use the extra error information provided by
parse_events and instead pass NULL as the struct parse_events_error
pointer. Add a wrapper for those cases so that the pointer is never
NULL.
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Link: https://lore.kernel.org/r/20220809080702.6921-4-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
If cpu_core PMU event fails to parse, try also cpu_atom PMU event when
parsing cycles event.
Fixes: 43eb05d066 ("perf tests: Support 'Track with sched_switch' test for hybrid")
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Jin Yao <yao.jin@linux.intel.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Link: https://lore.kernel.org/r/20220809080702.6921-3-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
parse_events() is often called with parse_events_error set to NULL.
Make parse_events_error__handle() not segfault in that case.
A subsequent patch changes to avoid passing NULL in the first place.
Fixes: 43eb05d066 ("perf tests: Support 'Track with sched_switch' test for hybrid")
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Jin Yao <yao.jin@linux.intel.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Link: https://lore.kernel.org/r/20220809080702.6921-2-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Hou Tao says:
====================
From: Hou Tao <houtao1@huawei.com>
Hi,
The patchset constitues three fixes for bpf map iterator:
(1) patch 1~4: fix user-after-free during reading map iterator fd
It is possible when both the corresponding link fd and map fd are
closed bfore reading the iterator fd. I had squashed these four patches
into one, but it was not friendly for stable backport, so I break these
fixes into four single patches in the end. Patch 7 is its testing patch.
(2) patch 5: fix invalidity check for values in sk local storage map
Patch 8 adds two tests for it.
(3) patch 6: reject sleepable program for non-resched map iterator
Patch 9 add a test for it.
Please check the individual patches for more details. And comments are
always welcome.
Regards,
Tao
Changes since v2:
* patch 1~6: update commit messages (from Yonghong & Martin)
* patch 7: add more detailed comments (from Yonghong)
* patch 8: use NULL directly instead of (void *)0
v1: https://lore.kernel.org/bpf/20220806074019.2756957-1-houtao@huaweicloud.com
====================
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Add test to validate the overwrite of sock local storage map value in
map iterator and another one to ensure out-of-bound value writing is
rejected.
Signed-off-by: Hou Tao <houtao1@huawei.com>
Acked-by: Yonghong Song <yhs@fb.com>
Acked-by: Martin KaFai Lau <kafai@fb.com>
Link: https://lore.kernel.org/r/20220810080538.1845898-9-houtao@huaweicloud.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
After closing both related link fd and map fd, reading the map
iterator fd to ensure it is OK to do so.
Signed-off-by: Hou Tao <houtao1@huawei.com>
Acked-by: Yonghong Song <yhs@fb.com>
Link: https://lore.kernel.org/r/20220810080538.1845898-8-houtao@huaweicloud.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
When a sleepable program is attached to a hash map iterator, might_fault()
will report "BUG: sleeping function called from invalid context..." if
CONFIG_DEBUG_ATOMIC_SLEEP is enabled. The reason is that rcu_read_lock()
is held in bpf_hash_map_seq_next() and won't be released until all elements
are traversed or bpf_hash_map_seq_stop() is called.
Fixing it by reusing BPF_ITER_RESCHED to indicate that only non-sleepable
program is allowed for iterator without BPF_ITER_RESCHED. We can revise
bpf_iter_link_attach() later if there are other conditions which may
cause rcu_read_lock() or spin_lock() issues.
Signed-off-by: Hou Tao <houtao1@huawei.com>
Acked-by: Yonghong Song <yhs@fb.com>
Link: https://lore.kernel.org/r/20220810080538.1845898-7-houtao@huaweicloud.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
The value of sock local storage map is writable in map iterator, so check
max_rdwr_access instead of max_rdonly_access.
Fixes: 5ce6e77c7e ("bpf: Implement bpf iterator for sock local storage map")
Signed-off-by: Hou Tao <houtao1@huawei.com>
Acked-by: Yonghong Song <yhs@fb.com>
Acked-by: Martin KaFai Lau <kafai@fb.com>
Link: https://lore.kernel.org/r/20220810080538.1845898-6-houtao@huaweicloud.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
sock_map_iter_attach_target() acquires a map uref, and the uref may be
released before or in the middle of iterating map elements. For example,
the uref could be released in sock_map_iter_detach_target() as part of
bpf_link_release(), or could be released in bpf_map_put_with_uref() as
part of bpf_map_release().
Fixing it by acquiring an extra map uref in .init_seq_private and
releasing it in .fini_seq_private.
Fixes: 0365351524 ("net: Allow iterating sockmap and sockhash")
Signed-off-by: Hou Tao <houtao1@huawei.com>
Acked-by: Yonghong Song <yhs@fb.com>
Link: https://lore.kernel.org/r/20220810080538.1845898-5-houtao@huaweicloud.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
bpf_iter_attach_map() acquires a map uref, and the uref may be released
before or in the middle of iterating map elements. For example, the uref
could be released in bpf_iter_detach_map() as part of
bpf_link_release(), or could be released in bpf_map_put_with_uref() as
part of bpf_map_release().
So acquiring an extra map uref in bpf_iter_init_sk_storage_map() and
releasing it in bpf_iter_fini_sk_storage_map().
Fixes: 5ce6e77c7e ("bpf: Implement bpf iterator for sock local storage map")
Signed-off-by: Hou Tao <houtao1@huawei.com>
Acked-by: Yonghong Song <yhs@fb.com>
Acked-by: Martin KaFai Lau <kafai@fb.com>
Link: https://lore.kernel.org/r/20220810080538.1845898-4-houtao@huaweicloud.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
bpf_iter_attach_map() acquires a map uref, and the uref may be released
before or in the middle of iterating map elements. For example, the uref
could be released in bpf_iter_detach_map() as part of
bpf_link_release(), or could be released in bpf_map_put_with_uref() as
part of bpf_map_release().
So acquiring an extra map uref in bpf_iter_init_hash_map() and
releasing it in bpf_iter_fini_hash_map().
Fixes: d6c4503cc2 ("bpf: Implement bpf iterator for hash maps")
Signed-off-by: Hou Tao <houtao1@huawei.com>
Acked-by: Yonghong Song <yhs@fb.com>
Link: https://lore.kernel.org/r/20220810080538.1845898-3-houtao@huaweicloud.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
bpf_iter_attach_map() acquires a map uref, and the uref may be released
before or in the middle of iterating map elements. For example, the uref
could be released in bpf_iter_detach_map() as part of
bpf_link_release(), or could be released in bpf_map_put_with_uref() as
part of bpf_map_release().
Alternative fix is acquiring an extra bpf_link reference just like
a pinned map iterator does, but it introduces unnecessary dependency
on bpf_link instead of bpf_map.
So choose another fix: acquiring an extra map uref in .init_seq_private
for array map iterator.
Fixes: d3cc2ab546 ("bpf: Implement bpf iterator for array maps")
Signed-off-by: Hou Tao <houtao1@huawei.com>
Acked-by: Yonghong Song <yhs@fb.com>
Link: https://lore.kernel.org/r/20220810080538.1845898-2-houtao@huaweicloud.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
The verifier cannot perform sufficient validation of bpf_attr->test.ctx_in
pointer, therefore bpf programs should not be allowed to call BPF_PROG_RUN
command from within the program.
To fix this issue split bpf_sys_bpf() bpf helper into normal kern_sys_bpf()
kernel function that can only be used by the kernel light skeleton directly.
Reported-by: YiFei Zhu <zhuyifei@google.com>
Fixes: b1d18a7574 ("bpf: Extend sys_bpf commands for bpf_syscall programs.")
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
The goto out calls kfree(value) on an uninitialized pointer. Just
return directly as the other error paths do.
Fixes: 460bbf2990 ("fs/ntfs3: Do not change mode if ntfs_set_ea failed")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Konstantin Komarov <almaz.alexandrovich@paragon-software.com>
Since the function wnd_bits is defined but not called in any file, it is
a useless function, and we delete it in view of the brevity of the code.
Remove some warnings found by running scripts/kernel-doc, which is
caused by using 'make W=1'.
fs/ntfs3/bitmap.c:54:19: warning: unused function 'wnd_bits' [-Wunused-function].
Reported-by: Abaci Robot <abaci@linux.alibaba.com>
Signed-off-by: Jiapeng Chong <jiapeng.chong@linux.alibaba.com>
Signed-off-by: Konstantin Komarov <almaz.alexandrovich@paragon-software.com>
To allow for distributions and other builders to apply hardening
policy and other customisation, append EXTRA_CFLAGS and EXTRA_LDFLAGS
to the corresponding variables.
Link: https://lore.kernel.org/linux-trace-devel/YtLBshz0nMQ7530H@decadent.org.uk
Signed-off-by: Ben Hutchings <benh@debian.org>
Acked-by: Daniel Bristot de Oliveira <bristot@kernel.org>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
"ln -s" stores the next argument directly as the symlink target, so
it needs to be a relative path. In this case, just "rtla".
Link: https://lore.kernel.org/linux-trace-devel/YtLBXMI6Ui4HLIF1@decadent.org.uk
Fixes: 0605bf009f ("rtla: Add osnoise tool")
Fixes: a828cd18bc ("rtla: Add timerlat tool and timelart top mode")
Signed-off-by: Ben Hutchings <benh@debian.org>
Acked-by: Daniel Bristot de Oliveira <bristot@kernel.org>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Since commit ef8795f3f1 ("dt-bindings: kbuild: Use DTB files for
validation"), dt-mk-schema always needs a complete list of schemas, so
the conditional using DT_MK_SCHEMA_FLAGS should be removed.
Signed-off-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20220727211100.3249417-1-robh@kernel.org
dst->ops is set on when nft_expr_clone() fails, but module refcount has
not been bumped yet, therefore nft_expr_destroy() leads to module
reference underflow.
Fixes: 8cfd9b0f85 ("netfilter: nftables: generalize set expressions support")
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
These are mutually exclusive, actually NFTA_SET_ELEM_KEY_END replaces
the flag notation.
Fixes: 7b225d0b5c ("netfilter: nf_tables: add NFTA_SET_ELEM_KEY_END attribute")
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
The generation ID is bumped from the commit path while holding the
mutex, however, netlink dump operations rely on RCU.
This patch also adds missing cb->base_eq initialization in
nf_tables_dump_set().
Fixes: 38e029f14a ("netfilter: nf_tables: set NLM_F_DUMP_INTR if netlink dumping is stale")
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
The sparse tool complains as follows:
arch/arm64/net/bpf_jit_comp.c:1684:16:
warning: incorrect type in assignment (different base types)
arch/arm64/net/bpf_jit_comp.c:1684:16:
expected unsigned int [usertype] *branch
arch/arm64/net/bpf_jit_comp.c:1684:16:
got restricted __le32 [usertype] *
arch/arm64/net/bpf_jit_comp.c:1700:52:
error: subtraction of different types can't work (different base
types)
arch/arm64/net/bpf_jit_comp.c:1734:29:
warning: incorrect type in assignment (different base types)
arch/arm64/net/bpf_jit_comp.c:1734:29:
expected unsigned int [usertype] *
arch/arm64/net/bpf_jit_comp.c:1734:29:
got restricted __le32 [usertype] *
arch/arm64/net/bpf_jit_comp.c:1918:52:
error: subtraction of different types can't work (different base
types)
This is because the variable branch in function invoke_bpf_prog and the
variable branches in function prepare_trampoline are defined as type
u32 *, which conflicts with ctx->image's type __le32 *, so sparse complains
when assignment or arithmetic operation are performed on these two
variables and ctx->image.
Since arm64 instructions are always little-endian, change the type of
these two variables to __le32 * and call cpu_to_le32() to convert
instruction to little-endian before writing it to memory. This is also
in line with emit() which internally does cpu_to_le32(), too.
Fixes: efc9909fdc ("bpf, arm64: Add bpf trampoline for arm64")
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Xu Kuohai <xukuohai@huawei.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Reviewed-by: Jean-Philippe Brucker <jean-philippe@linaro.org>
Link: https://lore.kernel.org/bpf/20220808040735.1232002-1-xukuohai@huawei.com
