From: "Xin Li (Intel)" <[email protected]> Advertise support for FRED to userspace after changes required to enable FRED in a KVM guest are in place.
Signed-off-by: Xin Li (Intel) <[email protected]> Signed-off-by: Sohil Mehta <[email protected]> Reviewed-by: Chao Gao <[email protected]> --- v10: - kvm_cpu_cap_clear(X86_FEATURE_FRED) in svm_set_cpu_caps() (Chao). --- arch/x86/kvm/cpuid.c | 1 + arch/x86/kvm/svm/svm.c | 3 +++ 2 files changed, 4 insertions(+) diff --git a/arch/x86/kvm/cpuid.c b/arch/x86/kvm/cpuid.c index ddb022cb203a..5682bacdfd32 100644 --- a/arch/x86/kvm/cpuid.c +++ b/arch/x86/kvm/cpuid.c @@ -1034,6 +1034,7 @@ void kvm_initialize_cpu_caps(void) F(FSRS), F(FSRC), F(WRMSRNS), + X86_64_F(FRED), X86_64_F(LKGS), F(AMX_FP16), F(AVX_IFMA), diff --git a/arch/x86/kvm/svm/svm.c b/arch/x86/kvm/svm/svm.c index f254a5ff570d..dd19c7b4e904 100644 --- a/arch/x86/kvm/svm/svm.c +++ b/arch/x86/kvm/svm/svm.c @@ -5518,6 +5518,9 @@ static __init void svm_set_cpu_caps(void) kvm_cpu_cap_clear(X86_FEATURE_IBT); + /* SVM FRED virtualization not implemented yet */ + kvm_cpu_cap_clear(X86_FEATURE_FRED); + /* CPUID 0x80000001 and 0x8000000A (SVM features) */ if (nested) { kvm_cpu_cap_set(X86_FEATURE_SVM); -- 2.43.0
