On Fri, 2019-03-08 at 15:57 +0800, Xiaoyao Li wrote:
> Since MSR_IA32_ARCH_CAPABILITIES is emualted unconditionally even if
> host doesn't suppot it. We should move it to array emulated_msrs from
> arry msrs_to_save, to report to userspace that guest support this msr.
>
should add this:
Fixes: 1eaafe91a0df4 ("kvm: x86: IA32_ARCH_CAPABILITIES is always supported")
> Signed-off-by: Xiaoyao Li <xiaoyao.li@xxxxxxxxxxxxxxx>
> ---
> arch/x86/kvm/x86.c | 3 ++-
> 1 file changed, 2 insertions(+), 1 deletion(-)
>
> diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
> index 941f932373d0..5f796e709352 100644
> --- a/arch/x86/kvm/x86.c
> +++ b/arch/x86/kvm/x86.c
> @@ -1125,7 +1125,7 @@ static u32 msrs_to_save[] = {
> #endif
> MSR_IA32_TSC, MSR_IA32_CR_PAT, MSR_VM_HSAVE_PA,
> MSR_IA32_FEATURE_CONTROL, MSR_IA32_BNDCFGS, MSR_TSC_AUX,
> - MSR_IA32_SPEC_CTRL, MSR_IA32_ARCH_CAPABILITIES,
> + MSR_IA32_SPEC_CTRL,
> MSR_IA32_RTIT_CTL, MSR_IA32_RTIT_STATUS, MSR_IA32_RTIT_CR3_MATCH,
> MSR_IA32_RTIT_OUTPUT_BASE, MSR_IA32_RTIT_OUTPUT_MASK,
> MSR_IA32_RTIT_ADDR0_A, MSR_IA32_RTIT_ADDR0_B,
> @@ -1158,6 +1158,7 @@ static u32 emulated_msrs[] = {
>
> MSR_IA32_TSC_ADJUST,
> MSR_IA32_TSCDEADLINE,
> + MSR_IA32_ARCH_CAPABILITIES,
> MSR_IA32_MISC_ENABLE,
> MSR_IA32_MCG_STATUS,
> MSR_IA32_MCG_CTL,
