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authorJoerg Roedel <joerg.roedel@amd.com>2008-02-11 20:28:27 +0100
committerAvi Kivity <avi@qumranet.com>2008-03-03 11:22:37 +0200
commitc7ac679c160db864810920df61a6ed14275011aa (patch)
treeac343b837766f9cf7a5941f89fb796f904c808f7
parent674eea0fc4d1d693250b5d3ddad42ca931c87dfd (diff)
downloadlinux-2.6.34-ux500-c7ac679c160db864810920df61a6ed14275011aa.tar.gz
KVM: emulate access to MSR_IA32_MCG_CTL
Injecting an GP when accessing this MSR lets Windows crash when running some stress test tools in KVM. So this patch emulates access to this MSR. Signed-off-by: Joerg Roedel <joerg.roedel@amd.com> Signed-off-by: Markus Rechberger <markus.rechberger@amd.com> Signed-off-by: Avi Kivity <avi@qumranet.com>
-rw-r--r--arch/x86/kvm/x86.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index a7069ec2267..338764fa539 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -487,6 +487,10 @@ int kvm_set_msr_common(struct kvm_vcpu *vcpu, u32 msr, u64 data)
pr_unimpl(vcpu, "%s: MSR_IA32_MCG_STATUS 0x%llx, nop\n",
__FUNCTION__, data);
break;
+ case MSR_IA32_MCG_CTL:
+ pr_unimpl(vcpu, "%s: MSR_IA32_MCG_CTL 0x%llx, nop\n",
+ __FUNCTION__, data);
+ break;
case MSR_IA32_UCODE_REV:
case MSR_IA32_UCODE_WRITE:
case 0x200 ... 0x2ff: /* MTRRs */
@@ -529,6 +533,7 @@ int kvm_get_msr_common(struct kvm_vcpu *vcpu, u32 msr, u64 *pdata)
case MSR_IA32_MC0_CTL:
case MSR_IA32_MCG_STATUS:
case MSR_IA32_MCG_CAP:
+ case MSR_IA32_MCG_CTL:
case MSR_IA32_MC0_MISC:
case MSR_IA32_MC0_MISC+4:
case MSR_IA32_MC0_MISC+8: