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KVM: Handle writes to MCG_STATUS msr

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Some older (~2.6.7) kernels write MCG_STATUS register during kernel
boot (mce_clear_all() function, called from mce_init()). It's not
currently handled by kvm and will cause it to inject a GPF.
Following patch adds a "nop" handler for this.

Signed-off-by: Sergey Kiselev <sergey.kiselev@intel.com>
Signed-off-by: Avi Kivity <avi@qumranet.com>
This commit is contained in:
Sergey Kiselev 2007-03-22 14:06:18 +02:00 committed by Avi Kivity
parent fcd3410870
commit 0e5bf0d0e4
1 changed files with 4 additions and 0 deletions
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4
drivers/kvm/kvm_main.c
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@ -1467,6 +1467,10 @@ int kvm_set_msr_common(struct kvm_vcpu *vcpu, u32 msr, u64 data)
printk(KERN_WARNING "%s: MSR_IA32_MC0_STATUS 0x%llx, nop\n",
__FUNCTION__, data);
break;
case MSR_IA32_MCG_STATUS:
printk(KERN_WARNING "%s: MSR_IA32_MCG_STATUS 0x%llx, nop\n",
__FUNCTION__, data);
break;
case MSR_IA32_UCODE_REV:
case MSR_IA32_UCODE_WRITE:
case 0x200 ... 0x2ff: /* MTRRs */