Netware writes and reads to the DEBUGCTL and LAST*IP MSRs without
further checks and is really confused to receive a #GP during that. To
make it happy we should just make them stubs, which is exactly what SVM
already does.
To support VMX too, I put these in the generic code. Maybe the SVM code
could be cleaned up to use generic code too.
Signed-off-by: Alexander Graf <[EMAIL PROTECTED]>
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index fc0721e..02f8490 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -609,6 +609,11 @@ int kvm_set_msr_common(struct kvm_vcpu *vcpu, u32 msr, u64 data)
pr_unimpl(vcpu, "%s: MSR_IA32_MCG_CTL 0x%llx, nop\n",
__func__, data);
break;
+ case MSR_IA32_DEBUGCTLMSR:
+ case MSR_IA32_LASTBRANCHFROMIP:
+ case MSR_IA32_LASTBRANCHTOIP:
+ case MSR_IA32_LASTINTFROMIP:
+ case MSR_IA32_LASTINTTOIP:
case MSR_IA32_UCODE_REV:
case MSR_IA32_UCODE_WRITE:
break;
@@ -705,6 +710,11 @@ int kvm_get_msr_common(struct kvm_vcpu *vcpu, u32 msr, u64 *pdata)
case MSR_IA32_MC0_MISC+16:
case MSR_IA32_UCODE_REV:
case MSR_IA32_EBL_CR_POWERON:
+ case MSR_IA32_DEBUGCTLMSR:
+ case MSR_IA32_LASTBRANCHFROMIP:
+ case MSR_IA32_LASTBRANCHTOIP:
+ case MSR_IA32_LASTINTFROMIP:
+ case MSR_IA32_LASTINTTOIP:
data = 0;
break;
case MSR_MTRRcap:
