diff options
| author | Andre Przywara <andre.przywara@amd.com> | 2009-06-24 12:44:34 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2009-11-09 16:21:50 -0800 |
| commit | 866b5a4dc9682101678d42071378a168744b15b0 (patch) | |
| tree | 7203dc174e1022ecf9a8e0e3a73c2b8b3d899400 /arch | |
| parent | c66415b2216cebf6625a2ab01c347a2fc329671a (diff) | |
KVM: ignore reads from AMDs C1E enabled MSR
commit 1fdbd48c242db996107f72ae4140ffe8163e26a8 upstream.
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>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/x86/kvm/x86.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c index 8aafb62227e..aa4c46f9b17 100644 --- a/arch/x86/kvm/x86.c +++ b/arch/x86/kvm/x86.c @@ -949,6 +949,7 @@ 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: |