mirror of
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1,430,466 commits
| Author | SHA1 | Message | Date | |
|---|---|---|---|---|
Jon Kohler
|
91a4e313cb |
KVM: TDX/VMX: rework EPT_VIOLATION_EXEC_FOR_RING3_LIN into PROT_MASK
EPT exit qualification bit 6 is used when mode-based execute control is enabled, and reflects user executable addresses. Rework name to reflect the intention and add to EPT_VIOLATION_PROT_MASK, which allows simplifying the return evaluation in tdx_is_sept_violation_unexpected_pending a pinch. Rework handling in __vmx_handle_ept_violation to unconditionally clear EPT_VIOLATION_PROT_USER_EXEC until MBEC is implemented, as suggested by Sean [1]. Note: Intel SDM Table 29-7 defines bit 6 as: If the "mode-based execute control" VM-execution control is 0, the value of this bit is undefined. If that control is 1, this bit is the logical-AND of bit 10 in the EPT paging-structure entries used to translate the guest-physical address of the access causing the EPT violation. In this case, it indicates whether the guest-physical address was executable for user-mode linear addresses. [1] https://lore.kernel.org/all/aCJDzU1p_SFNRIJd@google.com/ Suggested-by: Sean Christopherson <seanjc@google.com> Signed-off-by: Jon Kohler <jon@nutanix.com> Message-ID: <20251223054806.1611168-2-jon@nutanix.com> Tested-by: David Riley <d.riley@proxmox.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> |
||
Paolo Bonzini
|
6b80203187 |
- ESA nesting support
- 4k memslots - LPSW/E fix -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEwGNS88vfc9+v45Yq41TmuOI4ufgFAmncpfkACgkQ41TmuOI4 ufj4ehAA0fTpaA4VdUbF/uH1o4BLu/hElPXhJYnyDa6hUK0XiFS6bpouz50wTMz/ QjbmM+uCLKxVBK2FPE0cPj3iobvlfTTgP0tNkgwHDFlLfuZ9914cxYc4HYPrRJ/y Ey+6TT4ynkf2mihiLFHKKuBPi4DjfC3rAjy8ZHOnNh5ro+00uXVCGhssBUKvXNST X45q6JaN6p3eDVjC/ov/K593BJgMoW5x/kDmoyICuhDYs+8TiY+n+61BdVARKdtu 3+vwkjQ/mrl+IwJMvfeH+nO2qnjREc6EZd9YTJOCheThhELw0tX4jeha4PldeeZY fg+8uObSmbzxcmsvWRGTuVpobEBpOqRP9sdADxF77dq1ExFXwthXFT8AQw8NzI2k leU8DQqXVUOkykmpvacV96AGlYrRWb47806TdVM+fJmLkvmt0llS/MK6fQNz+Jlb okFx1kLnqSKz7x0O6Avgz/+F6yjFAwTp7mwKmd8bHzKCkLCYq8Gl6WPxx/peFY0P dwEwq0k89Wld7gjkAXwtwjttIrQcwghacqBCJAu4cA/3NnM2DCAPf3gSiY1PoYPX 06ZUYBzLH8wQJRZLToWpYvH9xOOfMmTETx7LDsYuMztxyesS+ReR/dVkCCei/2oD KeoGD0vBA0d8/wW+ZmB6YYxUiWT0WOllb/9s26NG/7lCTY1UgLI= =YTUc -----END PGP SIGNATURE----- Merge tag 'kvm-s390-next-7.1-1' of https://git.kernel.org/pub/scm/linux/kernel/git/kvms390/linux into HEAD - ESA nesting support - 4k memslots - LPSW/E fix |
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Paolo Bonzini
|
01f217fa8a |
KVM: x86: use inlines instead of macros for is_sev_*guest
This helps avoiding more embarrassment to this maintainer, but also will catch mistakes more easily for others. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> |
||
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Paolo Bonzini
|
92cdeac6a4 |
KVM SVM changes for 7.1
- Fix and optimize IRQ window inhibit handling for AVIC (the tracking needs to
be per-vCPU, e.g. so that KVM doesn't prematurely re-enable AVIC if multiple
vCPUs have to-be-injected IRQs).
- Fix an undefined behavior warning where a crafty userspace can read the
"avic" module param before it's fully initialized.
- Fix a (likely benign) bug in the "OS-visible workarounds" handling, where
KVM could clobber state when enabling virtualization on multiple CPUs in
parallel, and clean up and optimize the code.
- Drop a WARN in KVM_MEMORY_ENCRYPT_REG_REGION where KVM complains about a
"too large" size based purely on user input, and clean up and harden the
related pinning code.
- Disallow synchronizing a VMSA of an already-launched/encrypted vCPU, as
doing so for an SNP guest will trigger an RMP violation #PF and crash the
host.
- Protect all of sev_mem_enc_register_region() with kvm->lock to ensure
sev_guest() is stable for the entire of the function.
- Lock all vCPUs when synchronizing VMSAs for SNP guests to ensure the VMSA
page isn't actively being used.
- Overhaul KVM's APIs for detecting SEV+ guests so that VM-scoped queries are
required to hold kvm->lock (KVM has had multiple bugs due "is SEV?" checks
becoming stale), enforced by lockdep. Add and use vCPU-scoped APIs when
possible/appropriate, as all checks that originate from a vCPU are
guaranteed to be stable.
- Convert a pile of kvm->lock SEV code to guard().
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Merge tag 'kvm-x86-svm-7.1' of https://github.com/kvm-x86/linux into HEAD
KVM SVM changes for 7.1
- Fix and optimize IRQ window inhibit handling for AVIC (the tracking needs to
be per-vCPU, e.g. so that KVM doesn't prematurely re-enable AVIC if multiple
vCPUs have to-be-injected IRQs).
- Fix an undefined behavior warning where a crafty userspace can read the
"avic" module param before it's fully initialized.
- Fix a (likely benign) bug in the "OS-visible workarounds" handling, where
KVM could clobber state when enabling virtualization on multiple CPUs in
parallel, and clean up and optimize the code.
- Drop a WARN in KVM_MEMORY_ENCRYPT_REG_REGION where KVM complains about a
"too large" size based purely on user input, and clean up and harden the
related pinning code.
- Disallow synchronizing a VMSA of an already-launched/encrypted vCPU, as
doing so for an SNP guest will trigger an RMP violation #PF and crash the
host.
- Protect all of sev_mem_enc_register_region() with kvm->lock to ensure
sev_guest() is stable for the entire of the function.
- Lock all vCPUs when synchronizing VMSAs for SNP guests to ensure the VMSA
page isn't actively being used.
- Overhaul KVM's APIs for detecting SEV+ guests so that VM-scoped queries are
required to hold kvm->lock (KVM has had multiple bugs due "is SEV?" checks
becoming stale), enforced by lockdep. Add and use vCPU-scoped APIs when
possible/appropriate, as all checks that originate from a vCPU are
guaranteed to be stable.
- Convert a pile of kvm->lock SEV code to guard().
|
||
|
Paolo Bonzini
|
4a530993da |
KVM x86 VMXON and EFER.SVME extraction for 7.1
Move _only_ VMXON+VMXOFF and EFER.SVME toggling out of KVM (versus all of VMX and SVM enabling) out of KVM and into the core kernel so that non-KVM TDX enabling, e.g. for trusted I/O, can make SEAMCALLs without needing to ensure KVM is fully loaded. TDX isn't a hypervisor, and isn't trying to be a hypervisor. Specifically, TDX should _never_ have it's own VMCSes (that are visible to the host; the TDX-Module has it's own VMCSes to do SEAMCALL/SEAMRET), and so there is simply no reason to move that functionality out of KVM. With that out of the way, dealing with VMXON/VMXOFF and EFER.SVME is a fairly simple refcounting game. -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEKTobbabEP7vbhhN9OlYIJqCjN/0FAmnZJkYACgkQOlYIJqCj N/21chAAjg9tb/E8+vqBZDT5vO9Bu6c333irV2vqBBJZWUx6xKhtk77kL6kISWyf aI57hJ5IwbUkfDcomSY+MyRXxw/X4OioSs5qqvcC2XHatGA8XwifJE47cN5ZT0+D hzZjru8Z9VGHf5wUXS41yTHtm+INiEYMgJiseUQR6sbWx3H+zDcLIooNQx/ZLYrV vR+VPtaMYpJ0TTDDqb8PrCnjgXoXFenAnzAj9bAikWP60kaDXrxN9KPc5woDo29+ TrkTyr2mmQvKpNhLCDwAMNa9bXxgzkHEGx8J2WZTbUi9ZBv4MwVsnGLLsaUKQlaa 4V1JDiICzYptjMzU+ka4iTF+m0KEz4EykP7mVVK+5MAHc0NOUVfDW6JP2PM/66dh NyyjGhbrfH0PwqzDn4N2h0MmWT4YNCIxESClecEMtEzsCyWfYOMitxbDbzHnu9Vw a/C0pwWKJ34Trr0O79SevAWJBlu596mya0YvMeCAWxCvSUGknbo5IXdrmtp6htGp Gz5+0ZyvVRbYpwxS+OOpWMkZuPvvEcWTbMAG/scbSHh80P/uCVyuLsRZR2HSB8EV tYnnLDDDQ1KmLV7xmw5XnkN9hFffAM8eXA7KX9TPjCXjd25lCJGgquQEH0oAHe5q 1qXf+lWttP7MIbD5/Ga5CO+FqXAE6xmFRWjEBgLx32kSAWXqxPs= =SuxR -----END PGP SIGNATURE----- Merge tag 'kvm-x86-vmxon-7.1' of https://github.com/kvm-x86/linux into HEAD KVM x86 VMXON and EFER.SVME extraction for 7.1 Move _only_ VMXON+VMXOFF and EFER.SVME toggling out of KVM (versus all of VMX and SVM enabling) out of KVM and into the core kernel so that non-KVM TDX enabling, e.g. for trusted I/O, can make SEAMCALLs without needing to ensure KVM is fully loaded. TIO isn't a hypervisor, and isn't trying to be a hypervisor. Specifically, TIO should _never_ have it's own VMCSes (that are visible to the host; the TDX-Module has it's own VMCSes to do SEAMCALL/SEAMRET), and so there is simply no reason to move that functionality out of KVM. With that out of the way, dealing with VMXON/VMXOFF and EFER.SVME is a fairly simple refcounting game. |
||
|
Paolo Bonzini
|
ea8bc95fbb |
KVM nested SVM changes for 7.1 (with one common x86 fix)
- To minimize the probability of corrupting guest state, defer KVM's
non-architectural delivery of exception payloads (e.g. CR2 and DR6) until
consumption of the payload is imminent, and force delivery of the payload
in all paths where userspace saves relevant state.
- Use vcpu->arch.cr2 when updating vmcb12's CR2 on nested #VMEXIT to fix a
bug where L2's CR2 can get corrupted after a save/restore, e.g. if the VM
is migrated while L2 is faulting in memory.
- Fix a class of nSVM bugs where some fields written by the CPU are not
synchronized from vmcb02 to cached vmcb12 after VMRUN, and so are not
up-to-date when saved by KVM_GET_NESTED_STATE.
- Fix a class of bugs where the ordering between KVM_SET_NESTED_STATE and
KVM_SET_{S}REGS could cause vmcb02 to be incorrectly initialized after
save+restore.
- Add a variety of missing nSVM consistency checks.
- Fix several bugs where KVM failed to correctly update VMCB fields on nested
#VMEXIT.
- Fix several bugs where KVM failed to correctly synthesize #UD or #GP for
SVM-related instructions.
- Add support for save+restore of virtualized LBRs (on SVM).
- Refactor various helpers and macros to improve clarity and (hopefully) make
the code easier to maintain.
- Aggressively sanitize fields when copying from vmcb12 to guard against
unintentionally allowing L1 to utilize yet-to-be-defined features.
- Fix several bugs where KVM botched rAX legality checks when emulating SVM
instructions. Note, KVM is still flawed in that KVM doesn't address size
prefix overrides for 64-bit guests; this should probably be documented as a
KVM erratum.
- Fail emulation of VMRUN/VMLOAD/VMSAVE if mapping vmcb12 fails instead of
somewhat arbitrarily synthesizing #GP (i.e. don't bastardize AMD's already-
sketchy behavior of generating #GP if for "unsupported" addresses).
- Cache all used vmcb12 fields to further harden against TOCTOU bugs.
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Merge tag 'kvm-x86-nested-7.1' of https://github.com/kvm-x86/linux into HEAD
KVM nested SVM changes for 7.1 (with one common x86 fix)
- To minimize the probability of corrupting guest state, defer KVM's
non-architectural delivery of exception payloads (e.g. CR2 and DR6) until
consumption of the payload is imminent, and force delivery of the payload
in all paths where userspace saves relevant state.
- Use vcpu->arch.cr2 when updating vmcb12's CR2 on nested #VMEXIT to fix a
bug where L2's CR2 can get corrupted after a save/restore, e.g. if the VM
is migrated while L2 is faulting in memory.
- Fix a class of nSVM bugs where some fields written by the CPU are not
synchronized from vmcb02 to cached vmcb12 after VMRUN, and so are not
up-to-date when saved by KVM_GET_NESTED_STATE.
- Fix a class of bugs where the ordering between KVM_SET_NESTED_STATE and
KVM_SET_{S}REGS could cause vmcb02 to be incorrectly initialized after
save+restore.
- Add a variety of missing nSVM consistency checks.
- Fix several bugs where KVM failed to correctly update VMCB fields on nested
#VMEXIT.
- Fix several bugs where KVM failed to correctly synthesize #UD or #GP for
SVM-related instructions.
- Add support for save+restore of virtualized LBRs (on SVM).
- Refactor various helpers and macros to improve clarity and (hopefully) make
the code easier to maintain.
- Aggressively sanitize fields when copying from vmcb12 to guard against
unintentionally allowing L1 to utilize yet-to-be-defined features.
- Fix several bugs where KVM botched rAX legality checks when emulating SVM
instructions. Note, KVM is still flawed in that KVM doesn't address size
prefix overrides for 64-bit guests; this should probably be documented as a
KVM erratum.
- Fail emulation of VMRUN/VMLOAD/VMSAVE if mapping vmcb12 fails instead of
somewhat arbitrarily synthesizing #GP (i.e. don't bastardize AMD's already-
sketchy behavior of generating #GP if for "unsupported" addresses).
- Cache all used vmcb12 fields to further harden against TOCTOU bugs.
|
||
|
Paolo Bonzini
|
1b3090da8d |
KVM x86 MMU changes for 7.1
- Fix an undefined behavior warning where a crafty userspace can read kvm.ko's
nx_huge_pages before it's fully initialized.
- Don't zero-allocate page tables that are used for splitting hugepages in the
TDP MMU, as KVM is guaranteed to set all SPTEs in the page table and thus
write all bytes.
- Bail early when trying to unsync 4KiB mappings if the target gfn can be
mapped with a 2MiB hugepage, to avoid the gfn hash lookup.
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Merge tag 'kvm-x86-mmu-7.1' of https://github.com/kvm-x86/linux into HEAD
KVM x86 MMU changes for 7.1
- Fix an undefined behavior warning where a crafty userspace can read kvm.ko's
nx_huge_pages before it's fully initialized.
- Don't zero-allocate page tables that are used for splitting hugepages in the
TDP MMU, as KVM is guaranteed to set all SPTEs in the page table and thus
write all bytes.
- Bail early when trying to unsync 4KiB mappings if the target gfn can be
mapped with a 2MiB hugepage, to avoid the gfn hash lookup.
|
||
|
Paolo Bonzini
|
7e7a6e2ad2 |
KVM VMX changes for 7.1
- Drop obsolete (largely ignored by hardwre) branch hint prefixes from the
VMX instruction macros, as saving a byte of code per instruction provides
more benefits than the (mostly) superfluous prefixes.
- Use ASM_INPUT_RM() in __vmcs_writel() to coerce clang into using a register
input when appropriate.
- Drop unnecessary parentheses in cpu_has_load_cet_ctrl() so as not to suggest
that "return (x & y);" is KVM's preferred style.
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Merge tag 'kvm-x86-vmx-7.1' of https://github.com/kvm-x86/linux into HEAD
KVM VMX changes for 7.1
- Drop obsolete (largely ignored by hardwre) branch hint prefixes from the
VMX instruction macros, as saving a byte of code per instruction provides
more benefits than the (mostly) superfluous prefixes.
- Use ASM_INPUT_RM() in __vmcs_writel() to coerce clang into using a register
input when appropriate.
- Drop unnecessary parentheses in cpu_has_load_cet_ctrl() so as not to suggest
that "return (x & y);" is KVM's preferred style.
|
||
|
Paolo Bonzini
|
aa856775be |
KVM x86 emulated MMIO changes for 7.1
Copy single-chunk MMIO write values into a persistent (per-fragment) field to fix use-after-free stack bugs due to KVM dereferencing a stack pointer after an exit to userspace. Clean up and comment the emulated MMIO code to try to make it easier to maintain (not necessarily "easy", but "easier"). -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEKTobbabEP7vbhhN9OlYIJqCjN/0FAmnZJAkACgkQOlYIJqCj N/2TUxAAnmOHpQ0hKjDvkMXTLOUJEitegRn8CDd2NWa6TEnoCFmHu5sXAMaO0V7v EK2NH0uwT43Zr55BlXTxjEaQOby16tKjqK4FlG1Zb8UI6e9Lzhk6zIXMI7NTpV41 HMF73cQyHIzeS9ymf0fdVo3nlnvTXBHVCifyJwmb2RARl+LqmTimHb9+9piuIxJB /v473RoFCNxI7Rwl6Pp5sjl7lWTIDUQJSi3+1gMaowTtnsUyCPTLejwj7/b9NWF3 i+nTNwwpHFvgfTE3decMyKupY9aXUM9FU/AFf+eUbvzjR/Dx/7o31Cpz4NCHQ38c 4TCFKkOQ2r+e8s7ATBeRKdOXdP7d7DW3qasLfPVjzEDxuifmW+awDRYBZwNM/Ybv jDCBO6gbtw/f+oJPKq9oivqBSu+Z6vR7NnPmk1vh7VocsZdAlbCwdBU2+N5DBkfh LJ+nOxzNL1q1A8X61CZFffEooh971Mg7ztHV5IDviK5/Fop0NfQBjxdxoz+wttzp ufwY1WUMHjImRfZTk3e9icJwarqEI39QRmjKuaUJxEXjbJCbtvfKJ0lrNn7RRNPf aqi9M2z6UvVrQi/Vw5rRTx7fYr091QIOHDdGBVl7atcGyU4gvdpXdkBS6xqafgD6 S/QzWypU868iMgLWqNpNeKtRLPQsuwTywC5vx57Sm0yPlPbM8H0= =Qyhh -----END PGP SIGNATURE----- Merge tag 'kvm-x86-mmio-7.1' of https://github.com/kvm-x86/linux into HEAD KVM x86 emulated MMIO changes for 7.1 Copy single-chunk MMIO write values into a persistent (per-fragment) field to fix use-after-free stack bugs due to KVM dereferencing a stack pointer after an exit to userspace. Clean up and comment the emulated MMIO code to try to make it easier to maintain (not necessarily "easy", but "easier"). |
||
|
Paolo Bonzini
|
c13008ed3d |
KVM selftests changes for 7.1
- Add support for Hygon CPUs in KVM selftests.
- Fix a bug in the MSR test where it would get false failures on AMD/Hygon
CPUs with exactly one of RDPID or RDTSCP.
- Add an MADV_COLLAPSE testcase for guest_memfd as a regression test for a
bug where the kernel would attempt to collapse guest_memfd folios against
KVM's will.
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Merge tag 'kvm-x86-selftests-7.1' of https://github.com/kvm-x86/linux into HEAD
KVM selftests changes for 7.1
- Add support for Hygon CPUs in KVM selftests.
- Fix a bug in the MSR test where it would get false failures on AMD/Hygon
CPUs with exactly one of RDPID or RDTSCP.
- Add an MADV_COLLAPSE testcase for guest_memfd as a regression test for a
bug where the kernel would attempt to collapse guest_memfd folios against
KVM's will.
|
||
|
Paolo Bonzini
|
276f81a491 |
KVM x86 misc changes for 7.1
- Advertise support for AVX512 Bit Matrix Multiply (BMM) when it's present in
hardware (no additional emulation/virtualization required).
- Immediately fail the build if a required #define is missing in one of KVM's
headers that is included multiple times.
- Reject SET_GUEST_DEBUG with -EBUSY if there's an already injected exception,
mostly to prevent syzkaller from abusing the uAPI to trigger WARNs, but also
because it can help prevent userspace from unintentionally crashing the VM.
- Exempt SMM from CPUID faulting on Intel, as per the spec.
- Misc hardening and cleanup changes.
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Merge tag 'kvm-x86-misc-7.1' of https://github.com/kvm-x86/linux into HEAD
KVM x86 misc changes for 7.1
- Advertise support for AVX512 Bit Matrix Multiply (BMM) when it's present in
hardware (no additional emulation/virtualization required).
- Immediately fail the build if a required #define is missing in one of KVM's
headers that is included multiple times.
- Reject SET_GUEST_DEBUG with -EBUSY if there's an already injected exception,
mostly to prevent syzkaller from abusing the uAPI to trigger WARNs, but also
because it can help prevent userspace from unintentionally crashing the VM.
- Exempt SMM from CPUID faulting on Intel, as per the spec.
- Misc hardening and cleanup changes.
|
||
|
Paolo Bonzini
|
ed86b06bb3 |
KVM guest_memfd changes for 7.1
Don't mark guest_memfd folios as accessed, as guest_memfd doesn't support reclaim, the memory is unevictable, and there is no storage to write back to. -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEKTobbabEP7vbhhN9OlYIJqCjN/0FAmnZH1gACgkQOlYIJqCj N/1lEBAAt1s/EuvV8l7yu4xfUuQUxC+LdhTwJcoTQimahLjk5jqKsXPnKQpORKW8 ECJj5WIs+mRpNixndj2nJy87Ip99InD/V60wp09BXjigs+vYjya+2Ukan0wjij7E plw/g4bamKQK92l943SzgZ0ewLkXQOf5HV2SNytkC/ccNJnJDaC5heqzo6sHGfnt MQI8nOKqFJYkfaLR1jQT/hw+mgty8Oy6ZfAHSrQ27aP9FhY8g7C36Ie+FLenYGks seIcsLTOAf/4GKDbiFKQNy0pfARqiEfe/7MNUnZYcdDMth3QpOonnvcDUCsvWALz Lxa6Ehxs5A66gzuLqJJ6MkGnBTS2lTXaNTEtTIB9idb3YH9TK3cwjOkpqrBlVqUf t8W2qcyvja5BYGlfcs+cP4zl0k2GKJyAEa4ZGSaQyPxc7acPxHWg/MLIkLl5a46+ oPsOYSfBYbdXH/BKcV1sxdAm32ivrSv+Shbnc+kc4c4ZoNGQD0EeMInCtPgB3o1e E6e9xnLFS0YNJtt3NDuo4iGtlBsQCCU1Q55KJJhDoA7dfvIMCeMBScCQmmdtLD8Q NXsBI2A4/MbdFsbjdlYEhv8mgSHw8D2S27W+UfLDuFriXsee8enYglwjaH/5nfIT g/9wA8Xiw6yjdm5OGD+c3Fj6pn98p5KNIph69ObVQ/x3FeL/ZQ4= =21/x -----END PGP SIGNATURE----- Merge tag 'kvm-x86-gmem-7.1' of https://github.com/kvm-x86/linux into HEAD KVM guest_memfd changes for 7.1 Don't mark guest_memfd folios as accessed, as guest_memfd doesn't support reclaim, the memory is unevictable, and there is no storage to write back to. |
||
|
Paolo Bonzini
|
e74c3a8891 |
KVM/arm64 updates for 7.1
* New features: - Add support for tracing in the standalone EL2 hypervisor code, which should help both debugging and performance analysis. This comes with a full infrastructure for 'remote' trace buffers that can be exposed by non-kernel entities such as firmware. - Add support for GICv5 Per Processor Interrupts (PPIs), as the starting point for supporting the new GIC architecture in KVM. - Finally add support for pKVM protected guests, with anonymous memory being used as a backing store. About time! * Improvements and bug fixes: - Rework the dreaded user_mem_abort() function to make it more maintainable, reducing the amount of state being exposed to the various helpers and rendering a substantial amount of state immutable. - Expand the Stage-2 page table dumper to support NV shadow page tables on a per-VM basis. - Tidy up the pKVM PSCI proxy code to be slightly less hard to follow. - Fix both SPE and TRBE in non-VHE configurations so that they do not generate spurious, out of context table walks that ultimately lead to very bad HW lockups. - A small set of patches fixing the Stage-2 MMU freeing in error cases. - Tighten-up accepted SMC immediate value to be only #0 for host SMCCC calls. - The usual cleanups and other selftest churn. -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEn9UcU+C1Yxj9lZw9I9DQutE9ekMFAmnWdswACgkQI9DQutE9 ekNYvBAAxj5Zmsx8sJ2CYDTJc2w4XkEjSgDugA+J/s0TMgrzExeBlWCstdhVTncy 68nwOjQl3TotnIrt7q36kko9u7IdD0pHNrk34NtlggLjHfB61n9SNcAA6j4F6zJa GFkHpJSrSnZuUPqapkDnlyhuPkgTIAkEUk2Am9siksSfY4HvRyHZJm2FTdxsdIBn NN9wvQqw2wefTXOQ8gS+oHbPVp1cPbwrF2a3EhzXXv/6W3mUBstXgsijgo07UzCp W6vHCv2wqHbHdf67z3Q3hL+VXlVH6oHlyW99/swqISvqRkH/iSB90+oUojnMRrSm yB6Wmhh8jboCaajWMJhG+veZw+7GMXU4nOrGd1rbnY8cwRl/TQ5YibhRm7DIdvjO xeUluTLJ0NdweQUwE2k4OlgKOuGang3E2p0clmkUO4SstA48MdqR/kpST6guIlWw U5syuNaaaiuwP5QOi9qZmMCNmQ3ZfnZG3nseJFdoyGjhVhf5jyQyv4Du9vGZQFF/ Zkg7yTqC4OWiC+3GkW9YYAySM1MyetivLtd47PGzHPTdtaZziWhNvQ0y+8QjQ+R+ CJNvyS/DvsT7epSya4sLgMP1ZAlih9xkz5sQ6k8NJLBYYXi0v33qwqditErgLLyj S4Ci4WNhHHWIusvCVM7JUBkH0AElpmi506f7F6iHoFLlkYR4t9U= =/SuQ -----END PGP SIGNATURE----- Merge tag 'kvmarm-7.1' of git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm into HEAD KVM/arm64 updates for 7.1 * New features: - Add support for tracing in the standalone EL2 hypervisor code, which should help both debugging and performance analysis. This comes with a full infrastructure for 'remote' trace buffers that can be exposed by non-kernel entities such as firmware. - Add support for GICv5 Per Processor Interrupts (PPIs), as the starting point for supporting the new GIC architecture in KVM. - Finally add support for pKVM protected guests, with anonymous memory being used as a backing store. About time! * Improvements and bug fixes: - Rework the dreaded user_mem_abort() function to make it more maintainable, reducing the amount of state being exposed to the various helpers and rendering a substantial amount of state immutable. - Expand the Stage-2 page table dumper to support NV shadow page tables on a per-VM basis. - Tidy up the pKVM PSCI proxy code to be slightly less hard to follow. - Fix both SPE and TRBE in non-VHE configurations so that they do not generate spurious, out of context table walks that ultimately lead to very bad HW lockups. - A small set of patches fixing the Stage-2 MMU freeing in error cases. - Tighten-up accepted SMC immediate value to be only #0 for host SMCCC calls. - The usual cleanups and other selftest churn. |
||
|
Paolo Bonzini
|
05578316ca |
LoongArch KVM changes for v7.1
1. Use CSR_CRMD_PLV in kvm_arch_vcpu_in_kernel(). 2. Let vcpu_is_preempted() a macro & some enhanments. 3. Add DMSINTC irqchip in kernel support. 4. Add KVM PMU test cases for tools/selftests. -----BEGIN PGP SIGNATURE----- iQJKBAABCAA0FiEEzOlt8mkP+tbeiYy5AoYrw/LiJnoFAmnXiPMWHGNoZW5odWFj YWlAa2VybmVsLm9yZwAKCRAChivD8uImehVBD/4v8Y6S4Sxkc/EBUDKbPwLGGhGR aZEe2dzHr10C/mx7Q2cYwjKhR9bpgPcBe0xiEomxAopLwK15qMai2mnNRX6SJA8P 00J/3xWpKR6XsgsMv2KF9XvqdT1SlnzOC04D2v/wbkjlebWaCRIZgWG7yoRTHRIj TOpzf7XFBOnNpuzg94DjXsgAlSOo0qbHAMGMgbQ3k7OKzomAIlD4ljCyPD+JdvCz T7jW7n4Nho1SoOYPeWwXyxbIeorgtRB3JQ8RakMCjkJYyChICe1BGXJ66qeTLizd G5GOhiePtU5LLXQlRUU/uOLmxsJ5jZjJWs3tfsQOFz9f2i8JmF5nSw3DqmpTaQSF IF3v+3Iu9o+1dUBPsZVUjPWORWuRSFrXnnrUF3JPBZazXPwJHq8Gvbt3z6QFE8RO Z+Z9zDDcVrSWfJkYV3uHocPPnkCNTcIUdT2QFAWZYkBQCVlbbKET43dY0MbeFR9R n+mQcQVJOfp/a5oXwQyiiov6c67JX9yTT8wCB3tyPJVsLsiCOR8hN9UHSiQBc+Sx TLCuSkt0uVgwkTEM+pnJqLofRZGc9A6z8RPubwCgyxJp3+YPX5d3FtgHYcdNmAfK fQ2ILp7K0L52FcjVSr3uV8QacqUMhxLknODdjBhBcU0sh2V7yJPd9zoJq41xjtLy e8PC1D6NHGneLiuCCA== =zbdN -----END PGP SIGNATURE----- Merge tag 'loongarch-kvm-7.1' of git://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson into HEAD LoongArch KVM changes for v7.1 1. Use CSR_CRMD_PLV in kvm_arch_vcpu_in_kernel(). 2. Let vcpu_is_preempted() a macro & some enhanments. 3. Add DMSINTC irqchip in kernel support. 4. Add KVM PMU test cases for tools/selftests. |
||
|
Paolo Bonzini
|
d880d2a9c6 |
KVM/riscv changes for 7.1
- Fix steal time shared memory alignment checks - Fix vector context allocation leak - Fix array out-of-bounds in pmu_ctr_read() and pmu_fw_ctr_read_hi() - Fix double-free of sdata in kvm_pmu_clear_snapshot_area() - Fix integer overflow in kvm_pmu_validate_counter_mask() - Fix shift-out-of-bounds in make_xfence_request() - Fix lost write protection on huge pages during dirty logging - Split huge pages during fault handling for dirty logging - Skip CSR restore if VCPU is reloaded on the same core - Implement kvm_arch_has_default_irqchip() for KVM selftests - Factored-out ISA checks into separate sources - Added hideleg to struct kvm_vcpu_config - Factored-out VCPU config into separate sources - Support configuration of per-VM HGATP mode from KVM user space -----BEGIN PGP SIGNATURE----- iQIyBAABCgAdFiEEZdn75s5e6LHDQ+f/rUjsVaLHLAcFAmnbi74ACgkQrUjsVaLH LAejGw/3XRqexEOrxJ74GvAylGtGkQRuTw003mhIBIyshosYw6PiOSHEuAu7TQLc N074wt0QSfwbmQmeNaa0q3gIqb7Sp6gC0Eidurv1zHXuKSaAGbppnKD0VOZibtm6 CK4+HQqBXFxf2mMeJSQX7+EOWNO+rf2jfw80c3SiKTnPE8mtb8Xfn3G6Zw22UmBZ gOrDrW4IijNKNkrBItb8V1IJgsfFIdUY+1Il2n1MSRuuqQL+tJcmHWXEPs7GdfMf 9siV7asCfhKdf6xDys/Px42DBgQxLASG72Q8X2cESCxkO1kDplJZAt1AitAGfzXL bk20uAWikO0j7/Su93pWDOwMxRqb8c9dIMrnyRsCpmx1ovWA/odEnkrhslS1lafN hpUr6DWmTrE+2I6PW9UgBRAbleMomtK411fLhZh28PSyvp42sxG8841PwUNd/hFP lfcFO/ksJS7HFxQK5RaGZaMUuSMsgtZAu5P7zGGZm9uQh60eaHRF1vFcA+c5GAHe hibOegHjdYMkcLFqbVJDegU6a5+kohO3I8R21WXItp+VQjGvezOWuTDJtcR+jPAJ RNe4R1QeRgbsIwRuP9+fm6QnLeTPmBfxkCPFS1FvzrimLWskcQxqPWUq+eDvNDp+ EdnE1KPjPsTykWq2baiG70+0xnetHP4ZGIrWwOQNOREJPEGOqg== =LbnE -----END PGP SIGNATURE----- Merge tag 'kvm-riscv-7.1-1' of https://github.com/kvm-riscv/linux into HEAD KVM/riscv changes for 7.1 - Fix steal time shared memory alignment checks - Fix vector context allocation leak - Fix array out-of-bounds in pmu_ctr_read() and pmu_fw_ctr_read_hi() - Fix double-free of sdata in kvm_pmu_clear_snapshot_area() - Fix integer overflow in kvm_pmu_validate_counter_mask() - Fix shift-out-of-bounds in make_xfence_request() - Fix lost write protection on huge pages during dirty logging - Split huge pages during fault handling for dirty logging - Skip CSR restore if VCPU is reloaded on the same core - Implement kvm_arch_has_default_irqchip() for KVM selftests - Factored-out ISA checks into separate sources - Added hideleg to struct kvm_vcpu_config - Factored-out VCPU config into separate sources - Support configuration of per-VM HGATP mode from KVM user space |
||
Linus Torvalds
|
028ef9c96e | Linux 7.0 v7.0 | ||
|
Linus Torvalds
|
10d97b74e2 |
- Fix the error path ordering when the driver-private descriptor
allocation fails -----BEGIN PGP SIGNATURE----- iQIyBAABCgAdFiEEzv7L6UO9uDPlPSfHEsHwGGHeVUoFAmnb5aYACgkQEsHwGGHe VUqu5Q/3eYW1Ygbiti2MFGqLJPwAtzgQ0w7X6YjxzcfjG/zRuUjXjorCYz0NQSik dMMh1X2ebLj3YuLnhM3KDBoU7EM8nIvfQDw4aUU05k9UaXnxxsAb/VTMw62w/9SP bwl/3XfxlMw85kj+G1WBhPfhxX9t4v45PxSVV8gGaGwmMyDR2wRMkV9z3GYCctU7 OKDhe4gJa28wB8BdvyJ0yvRFvjxhtPC3KAjDVfqwoMaTghpE2camzE6bOxkXgZ6o dTPbRq494+cJTtfr1RgkYeATSv3yzvezxbkGoLVYe2Ch2Os+1hwMlk7ZSI7/mecC 2gwavPZ7F2mqj/y/QI+HRy9SaDJP+ntYamtw46xGjvxYadzmsrLVGgtLnFT0u0PR IoajSaY+LMiuEQCIlrBRtE1E0X10XCaIgTvl3W31+vvjvw655OSPWOQqDPoIpBvj 4SZ+89wb5t8vF9LVECYp66AMAkl3N20esm2yNzAEObOi+hsaSggG+RSPd4JOvpkn nJ30P4AUFsRun+Jdq7m0vKltT5OuheToSToDRAKpizxtoWBHg/+rUy2FHI7RmPoD V4JodpsoK3RbR4kWzovotOBiDjt9SFIVh1Y5kSULG3U31kGuWUgkaYMTmsH6A43t g3Sc+Xb7f2F8wsExFB38zID8p+eOCyUb0BsYaJp4mMK5Iafz/g== =pvsc -----END PGP SIGNATURE----- Merge tag 'edac_urgent_for_7.0' of git://git.kernel.org/pub/scm/linux/kernel/git/ras/ras Pull EDAC fix from Borislav Petkov: - Fix the error path ordering when the driver-private descriptor allocation fails * tag 'edac_urgent_for_7.0' of git://git.kernel.org/pub/scm/linux/kernel/git/ras/ras: EDAC/mc: Fix error path ordering in edac_mc_alloc() |
||
|
Linus Torvalds
|
35bdc192d8 |
workqueue: Fixes for v7.0-rc7
- Fix incomplete activation of multiple inactive works when unplugging a
pool_workqueue, where the pending_pwqs list wasn't being updated for
subsequent works.
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Merge tag 'wq-for-7.0-rc7-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq
Pull workqueue fix from Tejun Heo:
"This is a fix for a stall which triggers on ordered workqueues when
there are multiple inactive work items during workqueue property
changes through sysfs, which doesn't happen that frequently.
While really late, the fix is very low risk as it just repeats an
operation which is already being performed:
- Fix incomplete activation of multiple inactive works when
unplugging a pool_workqueue, where the pending_pwqs list
wasn't being updated for subsequent works"
* tag 'wq-for-7.0-rc7-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq:
workqueue: Add pool_workqueue to pending_pwqs list when unplugging multiple inactive works
|
||
|
Linus Torvalds
|
ab3dee2640 |
Two fixes for the time/timers subsystem:
- Invert the inverted fastpath decision in check_tick_dependency(), which
prevents NOHZ full to stop the tick. That's a regression introduced in
the 7.0 merge window.
- Prevent a unpriviledged DoS in the clockevents code, where user space
can starve the timer interrupt by arming a timerfd or posix interval
timer in a tight loop with an absolute expiry time in the past. The
fix turned out to be incomplete and was was amended yesterday to make
it work on some 20 years old AMD machines as well. All issues with it
have been confirmed to be resolved by various reporters.
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Merge tag 'timers-urgent-2026-04-12' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull timer fixes from Thomas Gleixner:
"Two fixes for the time/timers subsystem:
- Invert the inverted fastpath decision in check_tick_dependency(),
which prevents NOHZ full to stop the tick. That's a regression
introduced in the 7.0 merge window.
- Prevent a unpriviledged DoS in the clockevents code, where user
space can starve the timer interrupt by arming a timerfd or posix
interval timer in a tight loop with an absolute expiry time in the
past. The fix turned out to be incomplete and was was amended
yesterday to make it work on some 20 years old AMD machines as
well. All issues with it have been confirmed to be resolved by
various reporters"
* tag 'timers-urgent-2026-04-12' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
clockevents: Prevent timer interrupt starvation
tick/nohz: Fix inverted return value in check_tick_dependency() fast path
|
||
|
Linus Torvalds
|
02640d8886 |
Fix DL server related slowdown to deferred fair tasks.
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||
|
Linus Torvalds
|
d71358127c |
Fix incorrect hardware errors reported on Zen3 CPUs, such
as bogus L3 cache deferred errors. (Yazen Ghannam) Signed-off-by: Ingo Molnar <mingo@kernel.org> -----BEGIN PGP SIGNATURE----- iQJFBAABCgAvFiEEBpT5eoXrXCwVQwEKEnMQ0APhK1gFAmnbR60RHG1pbmdvQGtl cm5lbC5vcmcACgkQEnMQ0APhK1hksA/9E29kFCKEc+MpZ634k1Gb+fsUG0mPvUKa DMDqopOAlpW2TgcVkjEecPMwXIVVn2jC68pMGpW9BRkI5VxRbVq2UkmzvYsPGb4S lGO83ng4cxu+WHmWST4+7Mm/8XUZNxA3iunFJb/B1rxfA6R6s94VulcQ5PckE5ws 8X8QdueFOYr/ZgscHpan4lXzWXzJnqvhypUr+UYeRQtweScgI9/HA19+zzfO4+Er TzdcperNeBTS0TaXjZTdDtCJ9rQD4iQvokfUqItEkfBLbv136BM9dWkJp3mbTlv9 RUqbdPlXuFxxEUzJTpg2Y6qmo9n11nrt75UvE9WGuNPRQASqRvzIOfSfW7cMccJ0 PyH34KovrjUATUNHCuhvk8KnIRjy+sToT/wGkKD8hXeszG7dsH2W3ED85wqGvpbs m6tb0JLYsLJ3eg40I+wwMmm3eMGJZNsxmstk7j7pBEqMPCh3X9vojlALfM+oiHwH Fw4/jwukKQsqWR8cupOkM1EaIlEC3vsjdVXrshVok+sZ6s1bJ5iBn0zO82YC5pHJ U4u5mY5g1c/mcZ1Y7Mt9+ZYeWvq8yD3jjgmvyJEsJN2FgsiOnmWLBPQNCR2faflm QlDEiW6GwBhrt5esaTT50+5Jm8e8gb1dsu9GpOgMb4Mfc+jWIX1h65NVOBItHkuA fjxy9HLW+p8= =vLvD -----END PGP SIGNATURE----- Merge tag 'ras-urgent-2026-04-12' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull x86 MCE fix from Ingo Molnar: "Fix incorrect hardware errors reported on Zen3 CPUs, such as bogus L3 cache deferred errors (Yazen Ghannam)" * tag 'ras-urgent-2026-04-12' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/mce/amd: Filter bogus hardware errors on Zen3 clients |
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Linus Torvalds
|
c919577eee |
Four Intel uncore PMU driver fixes by Zide Chen.
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||
|
Linus Torvalds
|
8648ac819d |
This push contains the following changes:
- Enforce rx socket buffer limit in af_alg. - Fix array overflow in af_alg_pull_tsgl. - Fix out-of-bounds access when parsing extensions in X.509. - Fix minimum rx size check in algif_aead. -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEn51F/lCuNhUwmDeSxycdCkmxi6cFAmnbMEoACgkQxycdCkmx i6dfGhAAv9CfsRzOYAxDkfjiTm34qHJAWXluICDSkHzbATXIUldRSeArI0Y5aNij TPtYr/8gFX+WScIWIoaFtJJKdQodcy44Mn3YoUluaVHzsifOGhJPM/wGjq8q+kpp 9jAZdAmF4EPL6mM787NZZfHtX6K9eJJ1OWs1XQREjZqJxBmBDltCUjHf1yYm4TUU ZKuEducqd9b/NGcIEOzsTkT5bo7HNj7kfjiY2AvXX55K0C2GIkmm8FLl9SQ5RBwJ 8xpY/x8AKf37JjSuk+m07NP5unvfz50sG9m+Wl4VYMPuKDDT6YHTW/cdu+nZdOHd NAQm2+4hRabUsIzIWDA2iv0FhJMc8l79gnfVjXkRFBm1XDg2T+53FCAGP/s7UCa0 DGnpEBlq61Cm4yOsXfmoo4irnSHpUZfSwNdxMMhFjdbv78WU3NAIkM26kZeBcxRJ 7p9fh6+8Y09rPkbf8LRKX7ZpV1EWW01FNmVlzRGQfyc60tSAwAWcyuxNnqNmBK/k ssQlMcD4CIcNxVYGWWQaE0I6dxmJGMNQLKkANhjGjMZvGePnZb16XpDKjFNWUOt1 BLoE4yohwSes5EUBE2mt7w1VcLsnZTePbH3DqeL8zZkBIza6NhBE96Z/JdCpvFFf 157BBFPJ7/hy6pQwK9BpsPFT82gtSo2Y8plwJ30MvaS3sEv9sjg= =7lhB -----END PGP SIGNATURE----- Merge tag 'v7.0-p5' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6 Pull crypto fixes from Herbert Xu: - Enforce rx socket buffer limit in af_alg - Fix array overflow in af_alg_pull_tsgl - Fix out-of-bounds access when parsing extensions in X.509 - Fix minimum rx size check in algif_aead * tag 'v7.0-p5' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: crypto: algif_aead - Fix minimum RX size check for decryption X.509: Fix out-of-bounds access when parsing extensions crypto: af_alg - Fix page reassignment overflow in af_alg_pull_tsgl crypto: af_alg - limit RX SG extraction by receive buffer budget |
||
Herbert Xu
|
3d14bd48e3 |
crypto: algif_aead - Fix minimum RX size check for decryption
The check for the minimum receive buffer size did not take the
tag size into account during decryption. Fix this by adding the
required extra length.
Reported-by: syzbot+aa11561819dc42ebbc7c@syzkaller.appspotmail.com
Reported-by: Daniel Pouzzner <douzzer@mega.nu>
Fixes:
|
||
Lukas Wunner
|
d702c34082 |
X.509: Fix out-of-bounds access when parsing extensions
Leo reports an out-of-bounds access when parsing a certificate with empty Basic Constraints or Key Usage extension because the first byte of the extension is read before checking its length. Fix it. The bug can be triggered by an unprivileged user by submitting a specially crafted certificate to the kernel through the keyrings(7) API. Leo has demonstrated this with a proof-of-concept program responsibly disclosed off-list. Fixes: |
||
|
Herbert Xu
|
31d00156e5 |
crypto: af_alg - Fix page reassignment overflow in af_alg_pull_tsgl
When page reassignment was added to af_alg_pull_tsgl the original
loop wasn't updated so it may try to reassign one more page than
necessary.
Add the check to the reassignment so that this does not happen.
Also update the comment which still refers to the obsolete offset
argument.
Reported-by: syzbot+d23888375c2737c17ba5@syzkaller.appspotmail.com
Fixes:
|
||
|
Linus Torvalds
|
f5459048c3 |
i2c-for-7.0-final
imx: set dma_slave_config to 0 and avoid uninitialized fields -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEOZGx6rniZ1Gk92RdFA3kzBSgKbYFAmnaumsACgkQFA3kzBSg KbZ4rw/9GS9rHHX2P+8xtiHVYLZwhua2aCFC/PCDGrxj20ijr5VGjifGzP6pKqtJ rBUxlz8V264UcOxaLKlZsQSxd/kQEYcMJzCfspsUaKhxvgch5PGDI6WIeIjBrc/4 HXQxNy9LadNXS1KdcfQd1BLv44T3A5VANUdNBWxEy+E4WHRSpoN2kCSdW1xIC4mO iopoF0MC9w52BfI7wJLjkX3PPOykd4GWGxKwPqbZeaK/JivyOEaLXr3D5h2tKG3Q pawJzDDbpYwIzYUwECVR+VKrJVAnRT/lmVvust4HdNLmGU5Lz2BnsRsL8S4tu6Nn xJP7rqXR59E+T3cyqPttLZ8B2/kYBTS9XG6wQlAIh/Wyn3RBXkEGQmV5WpeTvJgU zF4D4nmY/zXC0sRAu1in9AgyVHkvVLsZu8785UjuVn4L6vP81oCs1eJCjXtYue5V mQvJU7N/nrm3Bd38ZMlrRHG1cIEnyGgfPh0z+ff+HCBZLEJGLGSDp6D0gNNdmdSX FYCSVMU+yOL5i8wXny09FyIQUeGrOZcuJ9PkS1RD54Rw+OFflqY+rBinQ2avCOaF Dg4FgIWhAKF5iYy1SDDTJc6N97OGDJjpLMp+e2KG9nuhEEIue3PqwtqbqXH3Mc9O sYk1eqyXqBn3qh3W8pxcW+5G1TFrviN6d10/o8zVWZR4YTQu/0E= =sqdX -----END PGP SIGNATURE----- Merge tag 'i2c-for-7.0-final' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux Pull i2c fix from Wolfram Sang: - imx: set dma_slave_config to 0 and avoid uninitialized fields * tag 'i2c-for-7.0-final' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux: i2c: imx: zero-initialize dma_slave_config for eDMA |
||
|
Linus Torvalds
|
e753c16cb3 |
spi: Fixes for v7.0
A couple of changes here, one update to MAINTAINERS for the AMD controller and a chnage from Pei Xiao which in spite of the changelog is actually a fix - previously the zynq-qspi driver leaked a clock enable for every flash operation it did which isn't good, these extra enables were removed when doing the enable cleanup which are probably a good idea anyway. -----BEGIN PGP SIGNATURE----- iQEzBAABCgAdFiEEreZoqmdXGLWf4p/qJNaLcl1Uh9AFAmnan/YACgkQJNaLcl1U h9BQLQf9FyBF84+tdZmpjbpo4AUFPkoViQYJH5u8cjkyek+Nsloy3uPtrsJVU0br 94+ImyTmJwaQyLQXmsm05K0GJ1ieo36JlGQNCoLYjlSSSgOU3CUkaIz5Y7QwpCF5 CGnuMErhl4EqhEV/T47Y4ehcrd8NOgoDMXMuThXcIYTN02W7C+rqOELDJ+bUOiWB c1SDyWYDv+xsK2eqxFHi8u/P3/z+Jth5poX7qeKHeNM1GF40+2/zGTTsqlHC/g9A GSaSnoPNCgproko5pLQqabvLA444FbaMjUJskv1qvpXJt1cex8e/RbBOe4JGHaWI z27Bu0jaiGW+B9OT9JTkPfbeTWTQRA== =PqQH -----END PGP SIGNATURE----- Merge tag 'spi-fix-v7.0-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi Pull spi fixes from Mark Brown: "A couple of changes here, one update to MAINTAINERS for the AMD controller and a chnage from Pei Xiao which in spite of the changelog is actually a fix - previously the zynq-qspi driver leaked a clock enable for every flash operation it did which isn't good, these extra enables were removed when doing the enable cleanup which are probably a good idea anyway" * tag 'spi-fix-v7.0-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi: MAINTAINERS: Update AMD SPI driver maintainers spi: zynq-qspi: Simplify clock handling with devm_clk_get_enabled() |
||
|
Linus Torvalds
|
e8ab311052 |
regulator: Fix for v7.0
One last fix for v7.0, the BD72720 incorrectly described which DCDC is tied to the LDO for it's LDON-HEAD mode which automates using the DCDC to more efficiently drop a supply for delivery via the LDO. -----BEGIN PGP SIGNATURE----- iQEzBAABCgAdFiEEreZoqmdXGLWf4p/qJNaLcl1Uh9AFAmnanvQACgkQJNaLcl1U h9AWWgf9HlWXVqG7M/tFqKoa1Xyza2EkUiyQWNW1dkiXGipxOg+MOa/yeFtyE6gD RClIkujt4Tt9dwI91FJ+HfWJ8O+Ux1XKRzCxsAe01gyhf68I4hQ2tl35yVzkuuyl VXdLHlek1dVGNl94IZQDPHYeICrvGCnk/OC7nf+V8bZU1YgfJTMYvNHrArPy2+zH SY4iZcJcR+vJwgWnZHeBTwzWPCWurYYz+XAEj7RseAJKqE8G3Idlqd/yIupM5mbo MhWnl1fP8xjv0tq6xhrwXPowxUt08OU9kARg+Siqy1kKN81tb0uocofUHAVGtBel y14mFWeRbYwh19yAG72guXSfUfyudw== =e5bj -----END PGP SIGNATURE----- Merge tag 'regulator-fix-v7.0-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator Pull regulator fix from Mark Brown: "One last fix for v7.0, the BD72720 incorrectly described which DCDC is tied to the LDO for its LDON-HEAD mode which automates using the DCDC to more efficiently drop a supply for delivery via the LDO" * tag 'regulator-fix-v7.0-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator: regulator: bd71828-regulator.c: Fix LDON-HEAD mode |
||
|
Linus Torvalds
|
086aca1030 |
s390:
* KVM: s390: vsie: Fix races with partial gmap invalidations x86: * KVM: x86: Use __DECLARE_FLEX_ARRAY() for UAPI structures with VLAs -----BEGIN PGP SIGNATURE----- iQFIBAABCgAyFiEE8TM4V0tmI4mGbHaCv/vSX3jHroMFAmnaOrgUHHBib256aW5p QHJlZGhhdC5jb20ACgkQv/vSX3jHroPTOwf8DW6BXYgHdDOWiiQQETD+D/JWbceG 9fKMdNjt48It3hKWc9oJ2eZU2avRHf7d8hAIUIhOeiUbeVf4QrLUfQXzP9j/9P+T vRpMlDf5Ampv3m8LxTBGESgwrlRHtWDGUFsE+CcVAIWEQfCsXnbwkeo3L9aCLTgA ekrnHqsx+Oh/n2+siEp0Nz0n8gT0hCtbqAqJlVcuHpJvzRzeDvcnukvHxjIydR65 uIFY5dahzheGqbPhplGKKAdPCHD+/S6QB+ShqKrT92zeZvhPZrt1XHV4Bt/sKSkP 9uAeuJ+JtbZvMG7n8fCg5ebwqJrw15uddZcV8l3qIuxHzyZ/XzKYhQm4oA== =7zjP -----END PGP SIGNATURE----- Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm Pull kvm fixes from Paolo Bonzini: "s390: - vsie: Fix races with partial gmap invalidations x86: - Use __DECLARE_FLEX_ARRAY() for UAPI structures with VLAs" * tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: KVM: s390: vsie: Fix races with partial gmap invalidations KVM: x86: Use __DECLARE_FLEX_ARRAY() for UAPI structures with VLAs |
||
|
Linus Torvalds
|
558b9206d5 |
Probes fixes for v7.0-rc7
- tracing/probe: reject non-closed empty immediate strings Fixed a buffer index underflow bug that occurred when passing an non-closed empty immediate string to the probe event. -----BEGIN PGP SIGNATURE----- iQFPBAABCgA5FiEEh7BulGwFlgAOi5DV2/sHvwUrPxsFAmnaJr8bHG1hc2FtaS5o aXJhbWF0c3VAZ21haWwuY29tAAoJENv7B78FKz8b4PcH/29I02lnjYf4IJ6oiANa K5+RU+Xq0z+Tn079GapHI9vmF8d9M89bI76fqKAVBGHosk+QTdYPLwupbowY72Fq 5uZPpkMXD+cvNJz0qGEq2WOPeB+VGxq8zR/lnZjhZLupJP0DfBp6SpXS0lFx4d0Q x+bw6keG7Guq0ocq2mFNWPo2U8bxlh78UrX+pYoIHyjeO+LVNC7X7Ld3aRDebMck uDnS5oLNMojd4Vi5WYuP1GzGzIUJ0cXDDXnSVqHP5zdt7VV83eZNlfWOKe1YyHEq FoVTrb3dRFFWn2EdXOJB+DjQXWZeZtUsfJTxWm4UgPgV1DmLmBFurfB8Kk0JmX7S 0XU= =vHwk -----END PGP SIGNATURE----- Merge tag 'probes-fixes-v7.0-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace Pull tracing probe fix from Masami Hiramatsu: "Reject non-closed empty immediate strings Fix a buffer index underflow bug that occurred when passing an non-closed empty immediate string to the probe event" * tag 'probes-fixes-v7.0-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace: tracing/probe: reject non-closed empty immediate strings |
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|
Linus Torvalds
|
6b5199f4cf |
USB fix for 7.0-final
Here is a single USB fix for a reported regression in a recent USB typec patch for 7.0-final. Sorry for the late submission, but it does fix a problem that people have been seeing with 7.0-rc7 and the stable kernels (due to a backported fix from there.) This has been in linux-next this week with no reported issues, and the reporter (Takashi), has said it resolves the problem they were seeing. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> -----BEGIN PGP SIGNATURE----- iG0EABECAC0WIQT0tgzFv3jCIUoxPcsxR9QN2y37KQUCadofdQ8cZ3JlZ0Brcm9h aC5jb20ACgkQMUfUDdst+ynZ2QCfURKY6dXrKRPZT5L5GXa+wMNKdlMAnRz+9K0L NEuwv8+EEEDmXKYmngTM =ZiC/ -----END PGP SIGNATURE----- Merge tag 'usb-7.0-final' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb Pull USB fix from Greg KH: "Here is a single USB fix for a reported regression in a recent USB typec patch for 7.0-final. Sorry for the late submission, but it does fix a problem that people have been seeing with 7.0-rc7 and the stable kernels (due to a backported fix from there.) This has been in linux-next this week with no reported issues, and the reporter (Takashi), has said it resolves the problem they were seeing" * tag 'usb-7.0-final' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: usb: typec: ucsi: skip connector validation before init |
||
|
Linus Torvalds
|
778322a06e |
Input updates for v7.0-rc7
- a fix for circular locking dependency in uinput - a fix for potential corruption of uinput event queue -----BEGIN PGP SIGNATURE----- iHUEABYKAB0WIQST2eWILY88ieB2DOtAj56VGEWXnAUCadnMIgAKCRBAj56VGEWX nIq2AP9KokKsXT2JwF6E/V9/eQiCXUija5lVu0eUUmjc5CpbvwEA8OTkbCgkHt62 Vux7F+drj4w5p13Fxj0+pgztZW1pfQc= =KHyc -----END PGP SIGNATURE----- Merge tag 'input-for-v7.0-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input Pull input fixes from Dmitry Torokhov: "Two fixes for force feedback handling in uinput driver: - fix circular locking dependency in uinput - fix potential corruption of uinput event queue" * tag 'input-for-v7.0-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: Input: uinput - take event lock when submitting FF request "event" Input: uinput - fix circular locking dependency with ff-core |
||
|
Paolo Bonzini
|
1fe7294dfb |
KVM: s390: One very last second fix
Fix one more gmap-rewrite issue: races with partial gmap invalidations. -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEoWuZBM6M3lCBSfTnuARItAMU6BMFAmnVLyYACgkQuARItAMU 6BOlFBAAycmLpPZlezQfBZ7BUFLYVlZjxE1aeT+s09U9i6OtKblGfEaMtM8ivbtq gcQALX8KbNJM1tkQRJGyE15+AhofCXcjbEiWxCJ3PzktoMhSU1If10EbpRenPxlB gqylMolWJ3wHuq3swlmHNCSFBKGci/jDJfed01QxSda7ngQ2uEqS7iF9ud/zyZgt IcTlsmIR0jT5vcq1eyaHw5NQ8bvMgJrzp85SwY7uTZIV2NDyUKIdsW6aYvI9jGCH Y39OgK/Nz7oKJgguMKiJetXYWhPPg/3sqRhKSseD9URypxaAvWOmPOrwxa2QtrCS sv1p2kGTKikep9wxTnvdXwxQOFDVQFyMcT77DDwGl7kWkKHRSZtbGskdesmdvni/ QEW5IqgO/f7jfTbuPmmgNf93QzTWiGSBLsjOjSY3IcqGrhwe6/JAdu21Ge+Oi+kA 0FWE1Q97tHZRuSGHIiWlFgziCAl0EKzaRenPaLX7j3s7TuaGoOGE7WEC8zPldnpi MUNfts8MIxOr+CEz5wM6duIym+YC2ZKJn87TOo5tJ3xM7JbPhflNTossnkYSkVuS WZNhArK+NrlP6NF1dTy7RBePOHHLH7RCxoYSoZ/dMYwr9sMcxAp0ULnMwQxVwx23 1OXqGQwS/rkhy/Gw77MhNdyUa8hxsK4nOWDebhJVxTjEVLbd9vE= =UmKD -----END PGP SIGNATURE----- Merge tag 'kvm-s390-master-7.0-4' of https://git.kernel.org/pub/scm/linux/kernel/git/kvms390/linux into HEAD KVM: s390: One very last second fix Fix one more gmap-rewrite issue: races with partial gmap invalidations. |
||
|
Paolo Bonzini
|
0e9b0e0124 |
KVM x86 fixes for 7.1
Declare flexible arrays in uAPI structures using __DECLARE_FLEX_ARRAY() so that KVM's uAPI headers can be included in C++ projects. -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEKTobbabEP7vbhhN9OlYIJqCjN/0FAmnZHqsACgkQOlYIJqCj N/331BAApsvBOvcKxeHM598wAsZTtBIUiMWrm/hybB2zhXxbcC9BDPN5NrYP9eJX khlLm9YRDI2Hvk8QNuwPXV/mHU5U0HNJ48BUToL6H5x6792dnRCbL046rYCyRZbi bUjMcUjTWtv7g+UEoYOsMpmYQlTlf4krCbw2ixn6/4c2Ab76TRmrISU+tknoal+b KGXEJWhsEiueUD8xpjR84P0h3d6x+EHc2oyDk/k+aFZAcbjWFz/8aLjOSVc00V36 DqYKbMGO/22CNkWSLk9Dr6mitn6HmG151HNAvUvHlPMFQLrP9jpk13u1IHZsR7H4 4yykj4tm5+02775IFqfPLNZ4Ipk70WO50ndl3plh7G7187ckYsfl+oQu2c4oIveB sPfnEHqteGKw+GLOM9Xu4MVCAvy7FFGlgGIkZpULA7cLNyIayfmKuZTF7/UEh9Wy fL2UAypzJjCIgLFyoio4CHqLJ4vuUneyHyoJczS/Wd9kuL0kHrLEw771gLGjwslB Nk0900qPlxEWx47G6MadzSh+JexjT9KrSCgaACNWKJpzQMkcw6gwDSIGq9F/f0Ac Zl7XFbQ2KKm/Z8CWCTg5XdxI6zz0NCzlcYoepk7CfHgs0xZjWqu5AReLcQnffx2/ c5YKoOffkicokffWQju64kjE/VYpdAITHONa1r7hv73/bfYfUGg= =VJsI -----END PGP SIGNATURE----- Merge tag 'kvm-x86-fixes-7.1' of https://github.com/kvm-x86/linux into HEAD KVM x86 fixes for 7.1 Declare flexible arrays in uAPI structures using __DECLARE_FLEX_ARRAY() so that KVM's uAPI headers can be included in C++ projects. |
||
|
Linus Torvalds
|
e774d5f1bc |
RISC-V updates for v7.0-rc8
Before v7.0 is released, fix a few issues with the CFI patchset,
merged earlier in v7.0-rc, that primarily affect interfaces to
non-kernel code:
- Improve the prctl() interface for per-task indirect branch landing
pad control to expand abbreviations and to resemble the speculation
control prctl() interface
- Expand the "LP" and "SS" abbreviations in the ptrace uapi header
file to "branch landing pad" and "shadow stack", to improve
readability
- Fix a typo in a CFI-related macro name in the ptrace uapi header
file
- Ensure that the indirect branch tracking state and shadow stack
state are unlocked immediately after an exec() on the new task so
that libc subsequently can control it
- While working in this area, clean up the kernel-internal,
cross-architecture prctl() function names by expanding the
abbreviations mentioned above
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Merge tag 'riscv-for-linus-v7.0-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux
Pull RISC-V updates from Paul Walmsley:
"Before v7.0 is released, fix a few issues with the CFI patchset,
merged earlier in v7.0-rc, that primarily affect interfaces to
non-kernel code:
- Improve the prctl() interface for per-task indirect branch landing
pad control to expand abbreviations and to resemble the speculation
control prctl() interface
- Expand the "LP" and "SS" abbreviations in the ptrace uapi header
file to "branch landing pad" and "shadow stack", to improve
readability
- Fix a typo in a CFI-related macro name in the ptrace uapi header
file
- Ensure that the indirect branch tracking state and shadow stack
state are unlocked immediately after an exec() on the new task so
that libc subsequently can control it
- While working in this area, clean up the kernel-internal,
cross-architecture prctl() function names by expanding the
abbreviations mentioned above"
* tag 'riscv-for-linus-v7.0-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux:
prctl: cfi: change the branch landing pad prctl()s to be more descriptive
riscv: ptrace: cfi: expand "SS" references to "shadow stack" in uapi headers
prctl: rename branch landing pad implementation functions to be more explicit
riscv: ptrace: expand "LP" references to "branch landing pads" in uapi headers
riscv: cfi: clear CFI lock status in start_thread()
riscv: ptrace: cfi: fix "PRACE" typo in uapi header
|
||
|
Linus Torvalds
|
c43adb3613 |
drm fixes for 7.0 final
xe: - Fix HW engine idleness unit conversion i915: - Drop check for changed VM in EXECBUF - Fix refcount underflow race in intel_engine_park_heartbeat - Do not use pipe_src as borders for SU area in PSR vc4: - runtime pm reference fix - memory leak fixes - locking fix ethosu: - make ARM only -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEEKbZHaGwW9KfbeusDHTzWXnEhr4FAmnZbwYACgkQDHTzWXnE hr6peA/+J7OdSuUJYwNQ59chQWD3q2jVVjlGWfUyYtE2Z1iYyt4uAkvKtZ5PFQnH WdluAtUdg/bc15QbBMeoKEWOBniJyjAgs/4o/oFsQNZL87trxCoaiL/akWdv7QiV lx51a3R26WvhsDJDgBklMNvPydTDxM2jdqX4juwXjIE324/WyPTE1ytYQQkJAbAx zo82XDx1Ucog+N1XtO13ORwC0Qaug2AU5JPi1ZbjwyzLX/3fFmCb3SmcdLyGlwbY mCyoivvs4e0PgpE2RprrVpazW+yZE2n6pj1Xi3FwNHx/8VUmTzECbaw+2nasaONY t8tri/etOkNl6w4VvNXoZXZiCU577nMjMDd9KXBmI3daRvq8zUqbiBIcFY2TCtbV NyL52vgn01SVXejASrm/x3r/FIL3UETbu1qKpOrF8gUEoMtlFPKCNGRIZt+PWDT9 jGzug6d6XXKfhf/nOQr42TOXKbA3dO2I3QB0BosZJxwfwushEHqzw3rNCtRfahlx l++Upc//w9FkPO57UCtfcdymXA0NOiwsqTM2gS9r2dGt5cf6WJkR3tylUzZuwgqv WvpjjwHL3Zun4pBLL+ELpdfnGXVbGFD0vfown+hIrY0RDKVEgUPRfpmyMX1ZV3k7 6IugM3HSZmQZMdCeWKCMKL210E5Wo1AwPj+YrTFX/REYJeLlZCw= =jot2 -----END PGP SIGNATURE----- Merge tag 'drm-fixes-2026-04-11' of https://gitlab.freedesktop.org/drm/kernel Pull drm fixes from Dave Airlie: "Last set of fixes, a few vc4, and i915, one xe and one ethosu Kconfig fix. xe: - Fix HW engine idleness unit conversion i915: - Drop check for changed VM in EXECBUF - Fix refcount underflow race in intel_engine_park_heartbeat - Do not use pipe_src as borders for SU area in PSR vc4: - runtime pm reference fix - memory leak fixes - locking fix ethosu: - make ARM only" * tag 'drm-fixes-2026-04-11' of https://gitlab.freedesktop.org/drm/kernel: drm/i915/gem: Drop check for changed VM in EXECBUF drm/i915/gt: fix refcount underflow in intel_engine_park_heartbeat drm/xe: Fix bug in idledly unit conversion drm/i915/psr: Do not use pipe_src as borders for SU area accel: ethosu: Add hardware dependency hint drm/vc4: Protect madv read in vc4_gem_object_mmap() with madv_lock drm/vc4: Fix a memory leak in hang state error path drm/vc4: Fix memory leak of BO array in hang state drm/vc4: Release runtime PM reference after binding V3D |
||
Dave Airlie
|
b3be33f2c1 |
Merge tag 'drm-intel-fixes-2026-04-09' of https://gitlab.freedesktop.org/drm/i915/kernel into drm-fixes
- Drop check for changed VM in EXECBUF - Fix refcount underflow race in intel_engine_park_heartbeat - Do not use pipe_src as borders for SU area in PSR Signed-off-by: Dave Airlie <airlied@redhat.com> From: Joonas Lahtinen <joonas.lahtinen@linux.intel.com> Link: https://patch.msgid.link/add6fPHRC7Bc8Uri@jlahtine-mobl |
||
Thomas Gleixner
|
d6e152d905 |
clockevents: Prevent timer interrupt starvation
Calvin reported an odd NMI watchdog lockup which claims that the CPU locked
up in user space. He provided a reproducer, which sets up a timerfd based
timer and then rearms it in a loop with an absolute expiry time of 1ns.
As the expiry time is in the past, the timer ends up as the first expiring
timer in the per CPU hrtimer base and the clockevent device is programmed
with the minimum delta value. If the machine is fast enough, this ends up
in a endless loop of programming the delta value to the minimum value
defined by the clock event device, before the timer interrupt can fire,
which starves the interrupt and consequently triggers the lockup detector
because the hrtimer callback of the lockup mechanism is never invoked.
As a first step to prevent this, avoid reprogramming the clock event device
when:
- a forced minimum delta event is pending
- the new expiry delta is less then or equal to the minimum delta
Thanks to Calvin for providing the reproducer and to Borislav for testing
and providing data from his Zen5 machine.
The problem is not limited to Zen5, but depending on the underlying
clock event device (e.g. TSC deadline timer on Intel) and the CPU speed
not necessarily observable.
This change serves only as the last resort and further changes will be made
to prevent this scenario earlier in the call chain as far as possible.
[ tglx: Updated to restore the old behaviour vs. !force and delta <= 0 and
fixed up the tick-broadcast handlers as pointed out by Borislav ]
Fixes:
|
||
|
Linus Torvalds
|
7c6c4ed80b |
vfs-7.0-rc8.fixes
Please consider pulling these changes from the signed vfs-7.0-rc8.fixes tag. Thanks! Christian -----BEGIN PGP SIGNATURE----- iHUEABYKAB0WIQRAhzRXHqcMeLMyaSiRxhvAZXjcogUCadjZCgAKCRCRxhvAZXjc om/TAQDsAIxYiJ4hR7rNrKuyL+FP7kuN8WX9DmjU+45Pt/SZNwEA2pSH0y7osa2+ xRGkN0pPQTu6JIlx0rCXlY9PYnXCPQg= =RHx5 -----END PGP SIGNATURE----- Merge tag 'vfs-7.0-rc8.fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs Pull vfs fixes from Christian Brauner: "The kernfs rbtree is keyed by (hash, ns, name) where the hash is seeded with the raw namespace pointer via init_name_hash(ns). The resulting hash values are exposed to userspace through readdir seek positions, and the pointer-based ordering in kernfs_name_compare() is observable through entry order. Switch from raw pointers to ns_common::ns_id for both hashing and comparison. A preparatory commit first replaces all const void * namespace parameters with const struct ns_common * throughout kernfs, sysfs, and kobject so the code can access ns->ns_id. Also compare the ns_id when hashes match in the rbtree to handle crafted collisions. Also fix eventpoll RCU grace period issue and a cachefiles refcount problem" * tag 'vfs-7.0-rc8.fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs: kernfs: make directory seek namespace-aware kernfs: use namespace id instead of pointer for hashing and comparison kernfs: pass struct ns_common instead of const void * for namespace tags eventpoll: defer struct eventpoll free to RCU grace period cachefiles: fix incorrect dentry refcount in cachefiles_cull() |
||
|
Linus Torvalds
|
96463e4e02 |
Turbostat Fixes
Fix a memory allocation issue that could corrupt output values or SEGV Fix a perf initilization issue that could exit on some HW + kernels. Minor fixes. -----BEGIN PGP SIGNATURE----- iQJIBAABCgAyFiEE67dNfPFP+XUaA73mB9BFOha3NhcFAmnY/PkUHGxlbi5icm93 bkBpbnRlbC5jb20ACgkQB9BFOha3NhcTIA//QsbmJV7qddOe/kOhS7izRyVjuaLQ QIyIrSLSa5+49oT4uRhZxuzDm6N6zVykFf+yxK5E2TSf+JfvzfwjZJQEgUPqHtkt vietoJheI4voMgmDQk39oxQmYyxmXuD3TRgvY+EN+QEIuWFA3/J9YaOulQMICrRy TX3juoZ3mxUpO8LC6+t3Yd8Kl1JEl3cKj3LdX7cMIchLM2cSTlbVFGSP0y5f0mu/ m54+JLSeSCFyqfin8rkgLYar8+AIIrHVak57rQ3qKBUOfoJlMaJEgXC4/sKdEzAW zKld2cFfzzXd2LnShN9Su7L9VCF09POKpD7P9bk9rDcp/MfsOmlKRctRvnY4T7Bq si+AflAYzYtHlq0LQbw2tHsKLFnqIJziDzz+YHl9UxcK0X17Gkp32NSQOX7Djvdu g/HDMHudnyoq0dAObieQgevYAWYmfKTNeQpJk+d+27X9HTzNXCDe70D774+DhM73 ViDU5zPrFBc1Z9ScQmgbe4z2N3MvzWGkodJRseb1v44ClH+Z6sCG4RYxYpxj0Zyu 0rR5GBb6ymuDUAQYEVuk2/F05bgmp3oXhoaddC+bO115XGEfe9sR7PBk3p9LYSM5 KirznZsjE8qI8GUXdL4EztTtIUJ5sx9CWb5FqP6k7XovrPCoMhSsbbo0vUbLCK4C eh0+iPh3sAf0NZs= =xJLy -----END PGP SIGNATURE----- Merge tag 'turbostat-fixes-for-7.0' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux Pull turbostat fixes from Len Brown: - Fix a memory allocation issue that could corrupt output values or SEGV - Fix a perf initilization issue that could exit on some HW + kernels - Minor fixes * tag 'turbostat-fixes-for-7.0' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux: tools/power turbostat: Allow execution to continue after perf_l2_init() failure tools/power turbostat: Fix delimiter bug in print functions tools/power turbostat: Fix --show/--hide for individual cpuidle counters tools/power turbostat: Fix incorrect format variable tools/power turbostat: Consistently use print_float_value() tools/power/turbostat: Fix microcode patch level output for AMD/Hygon tools/power turbostat: Eliminate unnecessary data structure allocation tools/power turbostat: Fix swidle header vs data display tools/power turbostat: Fix illegal memory access when SMT is present and disabled |
||
|
Linus Torvalds
|
017102b40c |
gpio fixes for v7.0
- gracefully handle missing regmap in gpio-bd72720 - fix IRQ resource release in gpio-tegra - return -ENOMEM on devm_kzalloc() failure instead of -ENODEV in gpio-tegra -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEkeUTLeW1Rh17omX8BZ0uy/82hMMFAmnYsyQACgkQBZ0uy/82 hMO1zBAAtpp2oB08jEHByAwVR7D/6TF9zcHNXUteEaVI1ZO/hIiE3GVDJ5Omo9RH CvfKTnG0MXgFQx6UZUuo21sc25Cmw06NVC0NJ5mA9FA+MSP7o4ujkOn9cVtlbAY4 rWrtKopmyAfpqiJg07iYND6kY4lPYSNLHcxqS0lXUzCnmpzh+0MoPpTnhA6XfZn1 D5ruJ9PU6DVscAZ0SOr4G14Y9u62ZHzn5wWTgErMD6KN4sdQu1k8zTlYBb44UDwq w2VkBSEnLzYLjhXfOyoneQJrbAmfZy6TKykVfsZ6cffyvtJ5ROvgvrVRXJgym/zM T7fcruSadv13MXStpINkwixxQ1y4d9IGsDViwPTVL4a5vFqeD5XYyxrSX8z4u8rR StNauZgtW2zGC9wYRbeAqJAlyBu2uxV7ij1nDrcEdt2/9T2LW/5kssjI1XN1vos0 mDWVHN+0HFJvzEQrjjl9DTy/cCwILXPpYmHJ4U4MFlTcqHkvzIczVw/pTGdpoQgG QKNt6HjdrWyGoniVpXw0wH2Njbo/rMYic3NMBXMvZXU9Z/eRKfhqHIyxuN2q3GmL 1y1w3JLXy/mGqxic1yv3JfxbmfskQe1XP5wl8/6ovOOfB/VMheTimWiMe2Dnf0xM xWDzbTwwq5cQEG6y7RL+0RZi1o0bM7HU1I9+VRCjGVYZ5PjNJks= =7OtG -----END PGP SIGNATURE----- Merge tag 'gpio-fixes-for-v7.0' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux Pull gpio fixes from Bartosz Golaszewski: - gracefully handle missing regmap in gpio-bd72720 - fix IRQ resource release in gpio-tegra - return -ENOMEM on devm_kzalloc() failure instead of -ENODEV in gpio-tegra * tag 'gpio-fixes-for-v7.0' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux: gpio: tegra: return -ENOMEM on allocation failure in probe gpio: tegra: fix irq_release_resources calling enable instead of disable gpio: bd72720: handle missing regmap |
||
|
Linus Torvalds
|
77c3c619d2 |
Pin control fixes for the v7.0 series:
- Three fixes for the Intel pin control driver fixing the feature
set for the new silicon.
- One fix for an IRQ storm in the MCP23S08 pin controller/GPIO
expander.
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Merge tag 'pinctrl-v7.0-4' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl
Pull pin control fixes from Linus Walleij:
"Some late pin control fixes. I'm not happy to have bugs so late in the
kernel cycle, but they are all driver specifics so I guess it's how it
is.
- Three fixes for the Intel pin control driver fixing the feature set
for the new silicon
- One fix for an IRQ storm in the MCP23S08 pin controller/GPIO
expander"
* tag 'pinctrl-v7.0-4' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl:
pinctrl: mcp23s08: Disable all pin interrupts during probe
pinctrl: intel: Enable 3-bit PAD_OWN feature
pinctrl: intel: Fix the revision for new features (1kOhm PD, HW debouncer)
pinctrl: intel: Improve capability support
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David Arcari
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ba893caead |
tools/power turbostat: Allow execution to continue after perf_l2_init() failure
Currently, if perf_l2_init() fails turbostat exits after issuing the following error (which was encountered on AlderLake): turbostat: perf_l2_init(cpu0, 0x0, 0xff24) REFS: Invalid argument This occurs because perf_l2_init() calls err(). However, the code has been written in such a manner that it is able to perform cleanup and continue. Therefore, this issue can be addressed by changing the appropriate calls to err() to warnx(). Additionally, correct the PMU type arguments passed to the warning strings in the ecore and lcore blocks so the logs accurately reflect the failing counter type. Signed-off-by: David Arcari <darcari@redhat.com> Signed-off-by: Len Brown <len.brown@intel.com> |
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Samasth Norway Ananda
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57df6923ca |
gpio: tegra: return -ENOMEM on allocation failure in probe
devm_kzalloc() failure in tegra_gpio_probe() returns -ENODEV, which indicates "no such device". The correct error code for a memory allocation failure is -ENOMEM. Signed-off-by: Samasth Norway Ananda <samasth.norway.ananda@oracle.com> Link: https://patch.msgid.link/20260409185853.2163034-1-samasth.norway.ananda@oracle.com Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@oss.qualcomm.com> |
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Dave Airlie
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93be8c74b6 |
Several fixes for v3d about memory leak, runtime PM, and locking, and a
Kconfig improvement for ethosu. -----BEGIN PGP SIGNATURE----- iJUEABMJAB0WIQTkHFbLp4ejekA/qfgnX84Zoj2+dgUCaddf9AAKCRAnX84Zoj2+ dvihAYCtQsSwH6VCpDf9bknrlqXpiUu+JlU2tSrK5plyTioCfFmdE1EhZmy7RJRo EAFpb4ABf16BBat7a3SJ/8KYeNtoYggURn4JvNKKPMF1lSYa9PNmKQsJsfMGmHt5 IIKRgFYQXw== =/nuD -----END PGP SIGNATURE----- Merge tag 'drm-misc-fixes-2026-04-09' of https://gitlab.freedesktop.org/drm/misc/kernel into drm-fixes Several fixes for v3d about memory leak, runtime PM, and locking, and a Kconfig improvement for ethosu. Signed-off-by: Dave Airlie <airlied@redhat.com> From: Maxime Ripard <mripard@redhat.com> Link: https://patch.msgid.link/20260409-omniscient-tomato-coucal-edbadc@penduick |
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Linus Torvalds
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9a9c8ce300 |
Fourth round of Kbuild fixes for 7.0
- Make modules-cpio-pkg respect INSTALL_MOD_PATH so that it can be used with distribution initramfs files that have a merged /usr, such as Fedora. - Silence an instance of -Wunused-but-set-global, a strengthening of -Wunused-but-set-variable in tip of tree Clang, in modpost, as the variable for extra warnings is currently unused. Signed-off-by: Nathan Chancellor <nathan@kernel.org> -----BEGIN PGP SIGNATURE----- iHUEABYKAB0WIQR74yXHMTGczQHYypIdayaRccAalgUCadgzeAAKCRAdayaRccAa lgwUAP9DR/KRuVYPGl32xPNpNGgZm/k1TFZhISk9iVzQctDoIQD/ZMfWz/6tAWcj K1L0xTi8tzAhV16YOa/uYtr1bWEDrAI= =ejUS -----END PGP SIGNATURE----- Merge tag 'kbuild-fixes-7.0-4' of git://git.kernel.org/pub/scm/linux/kernel/git/kbuild/linux Pull Kbuild fixes from Nathan Chancellor: - Make modules-cpio-pkg respect INSTALL_MOD_PATH so that it can be used with distribution initramfs files that have a merged /usr, such as Fedora - Silence an instance of -Wunused-but-set-global, a strengthening of -Wunused-but-set-variable in tip of tree Clang, in modpost, as the variable for extra warnings is currently unused * tag 'kbuild-fixes-7.0-4' of git://git.kernel.org/pub/scm/linux/kernel/git/kbuild/linux: modpost: Declare extra_warn with unused attribute kbuild: modules-cpio-pkg: Respect INSTALL_MOD_PATH |
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Sean Christopherson
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e30aa03d03 |
x86/virt: Treat SVM as unsupported when running as an SEV+ guest
When running as an SEV+ guest, treat SVM as unsupported even if CPUID (and
other reporting, e.g. MSRs) enumerate support for SVM, as KVM doesn't
support nested virtualization within an SEV VM (KVM would need to
explicitly share all VMCBs and other assets with the untrusted host), let
alone running nested VMs within SEV-ES+ guests (e.g. emulating VMLOAD,
VMSAVE, and VMRUN all require access to guest register state). And outside
of KVM, there is no in-tree user of SVM enabling.
Arguably, the hypervisor/VMM (e.g. QEMU) should clear SVM from guest CPUID
for SEV VMs, especially for SEV-ES+, but super duper technically, it's
feasible to run nested VMs in SEV+ guests (with many caveats). More
importantly, Linux-as-a-guest has played nice with SVM being advertised to
SEV+ guests for a long time.
Treating SVM as unsupported fixes a regression where a clean shutdown of
an SEV-ES+ guest degrades into an abrupt termination. Due to a gnarly
virtualization hole in SEV-ES (the architecture), where EFER must NOT be
intercepted by the hypervisor (because the untrusted hypervisor can't set
e.g. EFER.LME on behalf o the guest), the _host's_ EFER.SVME is visible to
the guest. Because EFER.SVME must be always '1' while in guest mode,
Linux-the-guest sees EFER.SVME=1 even when _its_ EFER.SVME is '0', thinks
it has enabled virtualization, and ultimately can cause
x86_svm_emergency_disable_virtualization_cpu() to execute STGI to ensure
GIF is enabled. Executing STGI _should_ be fine, except Linux is a also
wee bit paranoid when running as an SEV-ES guest.
Because L0 sees EFER.SVME=0 for the guest, a well-behaved L0 hypervisor
will intercept STGI (to inject #UD), and thus generate a #VC on the STGI.
Which, again, should be fine. Unfortunately, vc_check_opcode_bytes() fails
to account for STGI and other SVM instructions, throws a fatal error, and
triggers a termination request. In a perfect world, the #VC handler would
be more forgiving of unknown intercepts, especially when the #VC happened
on an instruction with exception fixup. For now, just fix the immediate
regression.
Fixes:
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Sean Christopherson
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bc0932cf9b |
KVM: SEV: Goto an existing error label if charging misc_cg for an ASID fails
Dedup a small amount of cleanup code in SEV ASID allocation by reusing an existing error label. No functional change intended. Link: https://patch.msgid.link/20260310234829.2608037-22-seanjc@google.com Signed-off-by: Sean Christopherson <seanjc@google.com> |
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Carlos López
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1d353dae3d |
KVM: SVM: Move lock-protected allocation of SEV ASID into a separate helper
Extract the lock-protected parts of SEV ASID allocation into a new helper and opportunistically convert it to use guard() when acquiring the mutex. Preserve the goto even though it's a little odd, as it's there's a fair amount of subtlety that makes it surprisingly difficult to replicate the functionality with a loop construct, and arguably using goto yields the most readable code. No functional change intended. Signed-off-by: Carlos López <clopez@suse.de> [sean: move code to separate helper, rework shortlog+changelog] Link: https://patch.msgid.link/20260310234829.2608037-21-seanjc@google.com Signed-off-by: Sean Christopherson <seanjc@google.com> |