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Commit c323c0e5 authored by Andre Przywara's avatar Andre Przywara Committed by Avi Kivity
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KVM: Ignore PCI ECS I/O enablement 



Linux guests will try to enable access to the extended PCI config space
via the I/O ports 0xCF8/0xCFC on AMD Fam10h CPU. Since we (currently?)
don't use ECS, simply ignore write and read attempts.

Signed-off-by: default avatarAndre Przywara <andre.przywara@amd.com>
Signed-off-by: default avatarAvi Kivity <avi@redhat.com>
parent ae8c1c40

arch/x86/kvm/x86.c

+3 −0
Original line number Diff line number Diff line
@@ -844,6 +844,8 @@ int kvm_set_msr_common(struct kvm_vcpu *vcpu, u32 msr, u64 data) 
			return 1;

		}

		break;

	case MSR_AMD64_NB_CFG:

		break;

	case MSR_IA32_DEBUGCTLMSR:

		if (!data) {

			/* We support the non-activated case already */
@@ -1049,6 +1051,7 @@ int kvm_get_msr_common(struct kvm_vcpu *vcpu, u32 msr, u64 *pdata) 
	case MSR_P6_EVNTSEL1:

	case MSR_K7_EVNTSEL0:

	case MSR_K8_INT_PENDING_MSG:

	case MSR_AMD64_NB_CFG:

		data = 0;

		break;

	case MSR_MTRRcap: