From: Andre Przywara <andre.przyw...@amd.com> If the Linux kernel detects an C1E capable AMD processor (K8 RevF and higher), it will access a certain MSR on every attempt to go to halt. Explicitly handle this read and return 0 to let KVM run a Linux guest with the native AMD host CPU propagated to the guest.
Signed-off-by: Andre Przywara <andre.przyw...@amd.com> Signed-off-by: Avi Kivity <a...@redhat.com> diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c index ea377f4..9eaaba4 100644 --- a/arch/x86/kvm/x86.c +++ b/arch/x86/kvm/x86.c @@ -1038,6 +1038,7 @@ int kvm_get_msr_common(struct kvm_vcpu *vcpu, u32 msr, u64 *pdata) case MSR_P6_EVNTSEL0: case MSR_P6_EVNTSEL1: case MSR_K7_EVNTSEL0: + case MSR_K8_INT_PENDING_MSG: data = 0; break; case MSR_MTRRcap: -- To unsubscribe from this list: send the line "unsubscribe kvm-commits" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html