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mirror of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git synced 2025-09-04 20:19:47 +08:00
linux/arch/x86/kvm/svm
Paolo Bonzini ea9bd29a9c KVM x86 fixes for 6.14-rcN #2
- Set RFLAGS.IF in C code on SVM to get VMRUN out of the STI shadow.
 
  - Ensure DEBUGCTL is context switched on AMD to avoid running the guest with
    the host's value, which can lead to unexpected bus lock #DBs.
 
  - Suppress DEBUGCTL.BTF on AMD (to match Intel), as KVM doesn't properly
    emulate BTF.  KVM's lack of context switching has meant BTF has always been
    broken to some extent.
 
  - Always save DR masks for SNP vCPUs if DebugSwap is *supported*, as the guest
    can enable DebugSwap without KVM's knowledge.
 
  - Fix a bug in mmu_stress_tests where a vCPU could finish the "writes to RO
    memory" phase without actually generating a write-protection fault.
 
  - Fix a printf() goof in the SEV smoke test that causes build failures with
    -Werror.
 
  - Explicitly zero EAX and EBX in CPUID.0x8000_0022 output when PERFMON_V2
    isn't supported by KVM.
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Merge tag 'kvm-x86-fixes-6.14-rcN.2' of https://github.com/kvm-x86/linux into HEAD

KVM x86 fixes for 6.14-rcN #2

 - Set RFLAGS.IF in C code on SVM to get VMRUN out of the STI shadow.

 - Ensure DEBUGCTL is context switched on AMD to avoid running the guest with
   the host's value, which can lead to unexpected bus lock #DBs.

 - Suppress DEBUGCTL.BTF on AMD (to match Intel), as KVM doesn't properly
   emulate BTF.  KVM's lack of context switching has meant BTF has always been
   broken to some extent.

 - Always save DR masks for SNP vCPUs if DebugSwap is *supported*, as the guest
   can enable DebugSwap without KVM's knowledge.

 - Fix a bug in mmu_stress_tests where a vCPU could finish the "writes to RO
   memory" phase without actually generating a write-protection fault.

 - Fix a printf() goof in the SEV smoke test that causes build failures with
   -Werror.

 - Explicitly zero EAX and EBX in CPUID.0x8000_0022 output when PERFMON_V2
   isn't supported by KVM.
2025-03-09 03:44:06 -04:00
..
avic.c KVM: SVM: Disable AVIC on SNP-enabled system without HvInUseWrAllowed feature 2024-12-19 17:47:51 -08:00
hyperv.c KVM: nSVM: hyper-v: Enable L2 TLB flush 2022-11-18 12:59:18 -05:00
hyperv.h KVM: x86: Make Hyper-V emulation optional 2023-12-07 09:34:57 -08:00
nested.c KVM: nSVM: Enter guest mode before initializing nested NPT MMU 2025-02-12 08:57:55 -08:00
pmu.c KVM: x86: Replace (almost) all guest CPUID feature queries with cpu_caps 2024-12-18 14:20:15 -08:00
sev.c KVM x86 fixes for 6.14-rcN #2 2025-03-09 03:44:06 -04:00
svm_onhyperv.c KVM: x86: Move Hyper-V partition assist page out of Hyper-V emulation context 2023-12-07 09:34:01 -08:00
svm_onhyperv.h s390: 2023-05-01 12:06:20 -07:00
svm_ops.h work around gcc bugs with 'asm goto' with outputs 2024-02-09 15:57:48 -08:00
svm.c KVM: SVM: Manually context switch DEBUGCTL if LBR virtualization is disabled 2025-02-28 09:17:45 -08:00
svm.h KVM: SVM: Suppress DEBUGCTL.BTF on AMD 2025-02-28 09:17:45 -08:00
vmenter.S KVM: SVM: Set RFLAGS.IF=1 in C code, to get VMRUN out of the STI shadow 2025-02-28 09:15:23 -08:00