Linux' AMD MCE code tries to read from the MC4_MISC1 (0xc0000408) MSR. Because this read is not virtualized within KVM, a GPE is injected into the guest. This patch handles guest reads from MC4_MISC and returns 0 to the guest. Signed-off-by: Matthias Lange <matthias.lange@xxxxxxxxxxxxxxx> --- arch/x86/kvm/x86.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c index 24d70d4..d5a305b 100644 --- a/arch/x86/kvm/x86.c +++ b/arch/x86/kvm/x86.c @@ -2530,6 +2530,9 @@ int kvm_get_msr_common(struct kvm_vcpu *vcpu, u32 msr, u64 *pdata) return 1; data = vcpu->arch.osvw.status; break; + case 0xc0000408: /* MC4_MISC1 */ + data = 0; + break; default: if (kvm_pmu_msr(vcpu, msr)) return kvm_pmu_get_msr(vcpu, msr, pdata); -- 1.9.1 -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
