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| author | Andre Przywara <andre.przywara@amd.com> | 2009-06-24 15:37:05 +0200 |
|---|---|---|
| committer | Avi Kivity <avi@redhat.com> | 2009-09-10 08:33:06 +0300 |
| commit | c323c0e5f06150cc000e09e8e3b22356099e7bde (patch) | |
| tree | ade33cadd2944bb7f81a5ab26f02d103e2d6d112 /arch/x86/kvm/x86.c | |
| parent | ae8c1c4025c2b780616586c3f86a3374a154ef90 (diff) | |
| download | lwn-c323c0e5f06150cc000e09e8e3b22356099e7bde.tar.gz lwn-c323c0e5f06150cc000e09e8e3b22356099e7bde.zip | |
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: Andre Przywara <andre.przywara@amd.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
Diffstat (limited to 'arch/x86/kvm/x86.c')
| -rw-r--r-- | arch/x86/kvm/x86.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c index 96f0ae7d97b6..af40e23df251 100644 --- a/arch/x86/kvm/x86.c +++ b/arch/x86/kvm/x86.c @@ -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: |