Even if it's read-only, it can still be written to by userspace. Let them know by adding it to KVM_GET_MSR_INDEX_LIST. Signed-off-by: Paolo Bonzini <pbonzini@xxxxxxxxxx> --- arch/x86/kvm/x86.c | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c index 3e70af42f65b..9f24f5d16854 100644 --- a/arch/x86/kvm/x86.c +++ b/arch/x86/kvm/x86.c @@ -1228,6 +1228,7 @@ bool kvm_rdpmc(struct kvm_vcpu *vcpu) MSR_MISC_FEATURES_ENABLES, MSR_AMD64_VIRT_SPEC_CTRL, MSR_IA32_POWER_CTL, + MSR_IA32_UCODE_REV, /* * The following list leaves out MSRs whose values are determined -- 1.8.3.1