Allow FRED/LKGS/WRMSRNS to be exposed to guests, thus a guest OS could see these features when the guest is configured with FRED/LKGS/WRMSRNS in Qemu.
A qemu patch is required to expose FRED/LKGS/WRMSRNS to KVM guests.
Tested-by: Shan Kang shan.kang@intel.com Signed-off-by: Xin Li xin3.li@intel.com --- arch/x86/kvm/cpuid.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/arch/x86/kvm/cpuid.c b/arch/x86/kvm/cpuid.c index dda6fc4cfae8..aa11b3e394ae 100644 --- a/arch/x86/kvm/cpuid.c +++ b/arch/x86/kvm/cpuid.c @@ -670,8 +670,8 @@ void kvm_set_cpu_caps(void)
kvm_cpu_cap_mask(CPUID_7_1_EAX, F(AVX_VNNI) | F(AVX512_BF16) | F(CMPCCXADD) | - F(FZRM) | F(FSRS) | F(FSRC) | - F(AMX_FP16) | F(AVX_IFMA) + F(FZRM) | F(FSRS) | F(FSRC) | F(FRED) | F(LKGS) | + F(WRMSRNS) | F(AMX_FP16) | F(AVX_IFMA) );
kvm_cpu_cap_init_kvm_defined(CPUID_7_1_EDX,