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Commit 1fdbd48c authored by Andre Przywara's avatar Andre Przywara Committed by Avi Kivity
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KVM: ignore reads from AMDs C1E enabled MSR 



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: default avatarAndre Przywara <andre.przywara@amd.com>
Signed-off-by: default avatarAvi Kivity <avi@redhat.com>
parent 8f1589d9

arch/x86/kvm/x86.c

+1 −0
Original line number Diff line number Diff line
@@ -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: