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authorSergey Kiselev <sergey.kiselev@intel.com>2007-03-22 08:06:18 -0400
committerAvi Kivity <avi@qumranet.com>2007-05-03 03:52:26 -0400
commit0e5bf0d0e449f6597870570e8dd17e78ba4d75ff (patch)
tree2ac27b98ec801261998c868ed856e1488bcae62e /drivers/kvm
parentfcd3410870049cb74bb1a3a2458cb3ec21185cd1 (diff)
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>
Diffstat (limited to 'drivers/kvm')
-rw-r--r--drivers/kvm/kvm_main.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/kvm/kvm_main.c b/drivers/kvm/kvm_main.c
index 05235e1751fb..33eade7e237c 100644
--- a/drivers/kvm/kvm_main.c
+++ b/drivers/kvm/kvm_main.c
@@ -1467,6 +1467,10 @@ int kvm_set_msr_common(struct kvm_vcpu *vcpu, u32 msr, u64 data)
1467 printk(KERN_WARNING "%s: MSR_IA32_MC0_STATUS 0x%llx, nop\n", 1467 printk(KERN_WARNING "%s: MSR_IA32_MC0_STATUS 0x%llx, nop\n",
1468 __FUNCTION__, data); 1468 __FUNCTION__, data);
1469 break; 1469 break;
1470 case MSR_IA32_MCG_STATUS:
1471 printk(KERN_WARNING "%s: MSR_IA32_MCG_STATUS 0x%llx, nop\n",
1472 __FUNCTION__, data);
1473 break;
1470 case MSR_IA32_UCODE_REV: 1474 case MSR_IA32_UCODE_REV:
1471 case MSR_IA32_UCODE_WRITE: 1475 case MSR_IA32_UCODE_WRITE:
1472 case 0x200 ... 0x2ff: /* MTRRs */ 1476 case 0x200 ... 0x2ff: /* MTRRs */