diff mbox series

[v1,19/23] KVM: x86: Allow FRED/LKGS/WRMSRNS to be exposed to guests

Message ID 20231108183003.5981-20-xin3.li@intel.com (mailing list archive)
State New
Headers show
Series Enable FRED with KVM VMX | expand

Commit Message

Li, Xin3 Nov. 8, 2023, 6:29 p.m. UTC 
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 mbox series

Patch

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,