Messages in this thread | | | Subject | Re: [RFC PATCH 4/4] KVM: vmx: add support for emulating UMIP | From | Paolo Bonzini <> | Date | Thu, 14 Jul 2016 14:54:31 +0200 |
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On 14/07/2016 14:36, Radim Krčmář wrote: >>> And we could then return true in vmx_umip_emulated() when >>> boot_cpu_has(X86_FEATURE_UMIP). >>> (Just for self-documentation, because occurrence of X86_FEATURE_UMIP is >>> most likely a subset of SECONDARY_EXEC_DESC.) >> >> This is not necessary because this is how KVM computes >> CPUID[EAX=7,EBX=0].ECX: >> >> unsigned f_umip = kvm_x86_ops->umip_emulated() ? F(UMIP) : 0; >> ... >> const u32 kvm_cpuid_7_0_ecx_x86_features = F(PKU) | F(UMIP); > > and that too, I'm really sorry for the review.
At least in the latter case, that says something about the code quality too.
Paolo
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