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authorSergey Kiselev <sergey.kiselev@intel.com>2007-03-22 14:06:18 +0200
committerAvi Kivity <avi@qumranet.com>2007-05-03 10:52:26 +0300
commit0e5bf0d0e449f6597870570e8dd17e78ba4d75ff (patch)
tree2ac27b98ec801261998c868ed856e1488bcae62e
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>
-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 05235e1751f..33eade7e237 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)
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 */