Re: [PATCH v9 0/8] x86/cpu, kvm: Support AMD Automatic IBRS

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On Tue, Jan 24, 2023, Kim Phillips wrote:
> Kim Phillips (8):
>   x86/cpu, kvm: Add support for CPUID_80000021_EAX
>   KVM: x86: Move open-coded cpuid leaf 0x80000021 EAX bit propagation
>     code
>   x86/cpu, kvm: Add the NO_NESTED_DATA_BP feature
>   x86/cpu, kvm: Move X86_FEATURE_LFENCE_RDTSC to its native leaf
>   x86/cpu, kvm: Add the Null Selector Clears Base feature
>   x86/cpu, kvm: Add the SMM_CTL MSR not present feature
>   x86/cpu: Support AMD Automatic IBRS
>   KVM: x86: Propagate the AMD Automatic IBRS feature to the guest
> 
>  Documentation/admin-guide/hw-vuln/spectre.rst |  6 ++--
>  .../admin-guide/kernel-parameters.txt         |  6 ++--
>  arch/x86/include/asm/cpufeature.h             |  7 +++--
>  arch/x86/include/asm/cpufeatures.h            | 11 ++++++--
>  arch/x86/include/asm/disabled-features.h      |  3 +-
>  arch/x86/include/asm/msr-index.h              |  2 ++
>  arch/x86/include/asm/required-features.h      |  3 +-
>  arch/x86/kernel/cpu/amd.c                     |  2 +-
>  arch/x86/kernel/cpu/bugs.c                    | 20 +++++++------
>  arch/x86/kernel/cpu/common.c                  | 26 +++++++++--------
>  arch/x86/kvm/cpuid.c                          | 28 ++++++-------------
>  arch/x86/kvm/reverse_cpuid.h                  |  1 +
>  arch/x86/kvm/svm/svm.c                        |  3 ++
>  arch/x86/kvm/x86.c                            |  3 ++
>  14 files changed, 70 insertions(+), 51 deletions(-)
> 
> -- 

With my goof in the LFENCE_RDTSC patch fixed,

Acked-by: Sean Christopherson <seanjc@xxxxxxxxxx>



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