Commit 0e5bf0d0 authored Mar 22, 2007 by Sergey Kiselev Committed by Avi Kivity May 03, 2007

KVM: Handle writes to MCG_STATUS msr



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>

parent fcd34108

drivers/kvm/kvm_main.c

+4 −0

Original line number	Diff line number	Diff line
		@@ -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 */