Hi Sean,
On 4/6/2023 2:21 AM, Sean Christopherson wrote:
> From: Santosh Shukla <santosh.shukla@xxxxxxx>
>
> Add a VNMI test case to test Virtual NMI in a nested environment,
> The test covers the Virtual NMI (VNMI) delivery.
>
> Signed-off-by: Santosh Shukla <santosh.shukla@xxxxxxx>
> [sean: reuse pieces of NMI test framework, fix formatting issues]
> Signed-off-by: Sean Christopherson <seanjc@xxxxxxxxxx>
Tested on Genoa system, Test passed, Thank-you!.,
Renaming comment inline -
> ---
> lib/x86/processor.h | 1 +
> x86/svm.c | 5 +++
> x86/svm.h | 8 +++++
> x86/svm_tests.c | 78 +++++++++++++++++++++++++++++++++++++++++++++
> 4 files changed, 92 insertions(+)
>
> diff --git a/lib/x86/processor.h b/lib/x86/processor.h
> index 3d58ef72..3802c1e2 100644
> --- a/lib/x86/processor.h
> +++ b/lib/x86/processor.h
> @@ -267,6 +267,7 @@ static inline bool is_intel(void)
> #define X86_FEATURE_PAUSEFILTER (CPUID(0x8000000A, 0, EDX, 10))
> #define X86_FEATURE_PFTHRESHOLD (CPUID(0x8000000A, 0, EDX, 12))
> #define X86_FEATURE_VGIF (CPUID(0x8000000A, 0, EDX, 16))
> +#define X86_FEATURE_V_NMI (CPUID(0x8000000A, 0, EDX, 25))
s/X86_FEATURE_V_NMI/X86_FEATURE_VNMI
> #define X86_FEATURE_AMD_PMU_V2 (CPUID(0x80000022, 0, EAX, 0))
>
> static inline bool this_cpu_has(u64 feature)
> diff --git a/x86/svm.c b/x86/svm.c
> index ba435b4a..022a0fde 100644
> --- a/x86/svm.c
> +++ b/x86/svm.c
> @@ -99,6 +99,11 @@ bool npt_supported(void)
> return this_cpu_has(X86_FEATURE_NPT);
> }
>
> +bool vnmi_supported(void)
> +{
> + return this_cpu_has(X86_FEATURE_V_NMI);
ditto..
Thanks,
Santosh
