Re: [PATCH 3/4] ignore PCI ECS I/O enablement

[Avi Kivity <avi@redhat.com>]

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?

-- 
error compiling committee.c: too many arguments to function