Alexander Graf wrote:
From: Joerg Roedel <[EMAIL PROTECTED]>
KVM tries to read the VM_CR MSR to find out if SVM was disabled by
the BIOS. So implement read support for this MSR to make nested
SVM running.
Signed-off-by: Joerg Roedel <[EMAIL PROTECTED]>
Signed-off-by: Alexander Graf <[EMAIL PROTECTED]>
---
arch/x86/kvm/svm.c | 3 +++
1 files changed, 3 insertions(+), 0 deletions(-)
diff --git a/arch/x86/kvm/svm.c b/arch/x86/kvm/svm.c
index 720b610..4582699 100644
--- a/arch/x86/kvm/svm.c
+++ b/arch/x86/kvm/svm.c
@@ -1869,6 +1869,9 @@ static int svm_get_msr(struct kvm_vcpu *vcpu, unsigned
ecx, u64 *data)
case MSR_VM_HSAVE_PA:
*data = 0;
break;
+ case MSR_VM_CR:
+ *data = 0;
+ break;
It would be useful to support setting this value too. Then we could
disable SVM support by writing the MSR in the BIOS.
Regards,
Anthony Liguori
default:
return kvm_get_msr_common(vcpu, ecx, data);
}
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