| Message ID | 1245840276-12702-3-git-send-email-andre.przywara@amd.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
On 06/24/2009 01:44 PM, Andre Przywara wrote: > 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 this write attempt. > > diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c > index a148f4c..e6e61ee 100644 > --- a/arch/x86/kvm/x86.c > +++ b/arch/x86/kvm/x86.c > @@ -804,6 +804,8 @@ 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 */ > I see Linux does both rdmsr and wrmsr, don't we need to support both?
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c index a148f4c..e6e61ee 100644 --- a/arch/x86/kvm/x86.c +++ b/arch/x86/kvm/x86.c @@ -804,6 +804,8 @@ 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 */
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 this write attempt. Signed-off-by: Andre Przywara <andre.przywara@amd.com> --- arch/x86/kvm/x86.c | 2 ++ 1 files changed, 2 insertions(+), 0 deletions(-)