diff options
| -rw-r--r-- | arch/x86/kvm/svm/svm.c | 2 | ||||
| -rw-r--r-- | arch/x86/kvm/vmx/vmx.c | 2 | ||||
| -rw-r--r-- | arch/x86/kvm/x86.c | 10 |
3 files changed, 10 insertions, 4 deletions
diff --git a/arch/x86/kvm/svm/svm.c b/arch/x86/kvm/svm/svm.c index c0da4dd78ac5..70a824806274 100644 --- a/arch/x86/kvm/svm/svm.c +++ b/arch/x86/kvm/svm/svm.c @@ -2359,7 +2359,7 @@ static int svm_get_msr_feature(struct kvm_msr_entry *msr) msr->data |= MSR_F10H_DECFG_LFENCE_SERIALIZE; break; default: - return 1; + return KVM_MSR_RET_INVALID; } return 0; diff --git a/arch/x86/kvm/vmx/vmx.c b/arch/x86/kvm/vmx/vmx.c index 8411118e51a2..608e992e8db9 100644 --- a/arch/x86/kvm/vmx/vmx.c +++ b/arch/x86/kvm/vmx/vmx.c @@ -1815,7 +1815,7 @@ static int vmx_get_msr_feature(struct kvm_msr_entry *msr) msr->data = vmx_get_perf_capabilities(); return 0; default: - return 1; + return KVM_MSR_RET_INVALID; } } diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c index e7c1567b9501..ec9aba133c1c 100644 --- a/arch/x86/kvm/x86.c +++ b/arch/x86/kvm/x86.c @@ -1412,8 +1412,7 @@ static int kvm_get_msr_feature(struct kvm_msr_entry *msr) rdmsrl_safe(msr->index, &msr->data); break; default: - if (kvm_x86_ops.get_msr_feature(msr)) - return 1; + return kvm_x86_ops.get_msr_feature(msr); } return 0; } @@ -1425,6 +1424,13 @@ static int do_get_msr_feature(struct kvm_vcpu *vcpu, unsigned index, u64 *data) msr.index = index; r = kvm_get_msr_feature(&msr); + + if (r == KVM_MSR_RET_INVALID) { + /* Unconditionally clear the output for simplicity */ + *data = 0; + r = kvm_msr_ignored_check(vcpu, index, 0, false); + } + if (r) return r; |