diff options
| -rw-r--r-- | arch/x86/kvm/x86.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c index b81ef4f497f4..b5aeed18b9f5 100644 --- a/arch/x86/kvm/x86.c +++ b/arch/x86/kvm/x86.c @@ -3234,10 +3234,13 @@ static int set_msr_mce(struct kvm_vcpu *vcpu, struct msr_data *msr_info) /* only 0 or all 1s can be written to IA32_MCi_CTL * some Linux kernels though clear bit 10 in bank 4 to * workaround a BIOS/GART TBL issue on AMD K8s, ignore - * this to avoid an uncatched #GP in the guest + * this to avoid an uncatched #GP in the guest. + * + * UNIXWARE clears bit 0 of MC1_CTL to ignore + * correctable, single-bit ECC data errors. */ if ((offset & 0x3) == 0 && - data != 0 && (data | (1 << 10)) != ~(u64)0) + data != 0 && (data | (1 << 10) | 1) != ~(u64)0) return -1; /* MCi_STATUS */ |