Windows Server 2008 SP2 checked build with smp > 1 BSOD's during
boot due to lack of microcode update:
*** Assertion failed: The system BIOS on this machine does not properly
support the processor. The system BIOS did not load any microcode update.
A BIOS containing the latest microcode update is needed for system reliability.
(CurrentUpdateRevision != 0)
*** Source File: d:\longhorn\base\hals\update\intelupd\update.c, line 440
Report a non-zero microcode update signature to make it happy.
Signed-off-by: Marcelo Tosatti <mtosatti@xxxxxxxxxx>
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index e80f0d7..f435591 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -1841,7 +1841,6 @@ int kvm_get_msr_common(struct kvm_vcpu *vcpu, u32 msr, u64 *pdata)
switch (msr) {
case MSR_IA32_PLATFORM_ID:
- case MSR_IA32_UCODE_REV:
case MSR_IA32_EBL_CR_POWERON:
case MSR_IA32_DEBUGCTLMSR:
case MSR_IA32_LASTBRANCHFROMIP:
@@ -1862,6 +1861,9 @@ int kvm_get_msr_common(struct kvm_vcpu *vcpu, u32 msr, u64 *pdata)
case MSR_FAM10H_MMIO_CONF_BASE:
data = 0;
break;
+ case MSR_IA32_UCODE_REV:
+ data = 0x100000000ULL;
+ break;
case MSR_MTRRcap:
data = 0x500 | KVM_NR_VAR_MTRR;
break;
--
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