Commit 1fdbd48c authored Jun 24, 2009 by Andre Przywara Committed by Avi Kivity Sep 10, 2009

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: Andre Przywara <andre.przywara@amd.com>
Signed-off-by: Avi 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:

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