From 6098ca939ee5ceb81d6628b9130112516bae7400 Mon Sep 17 00:00:00 2001 From: Andre Przywara Date: Fri, 3 Jul 2009 16:00:14 +0200 Subject: [PATCH] KVM: handle AMD microcode MSR Windows 7 tries to update the CPU's microcode on some processors, so we ignore the MSR write here. The patchlevel register is already handled (returning 0), because the MSR number is the same as Intel's. Signed-off-by: Andre Przywara Signed-off-by: Avi Kivity --- arch/x86/kvm/x86.c | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c index a50c83232e76..6dde99ca743e 100644 --- a/arch/x86/kvm/x86.c +++ b/arch/x86/kvm/x86.c @@ -861,6 +861,7 @@ int kvm_set_msr_common(struct kvm_vcpu *vcpu, u32 msr, u64 data) case MSR_IA32_UCODE_REV: case MSR_IA32_UCODE_WRITE: case MSR_VM_HSAVE_PA: + case MSR_AMD64_PATCH_LOADER: break; case 0x200 ... 0x2ff: return set_msr_mtrr(vcpu, msr, data);