Re: [PATCH] KVM: VMX: Remove vcpu_vmx's defunct copy of host_pkru

[Vitaly Kuznetsov <vkuznets@redhat.com>]

Sean Christopherson <sean.j.christopherson@intel.com> writes:

> Remove vcpu_vmx.host_pkru, which got left behind when PKRU support was
> moved to common x86 code.
>
> No functional change intended.
>
> Fixes: 37486135d3a7b ("KVM: x86: Fix pkru save/restore when guest CR4.PKE=0, move it to x86.c")
> Signed-off-by: Sean Christopherson <sean.j.christopherson@intel.com>
> ---
>  arch/x86/kvm/vmx/vmx.h | 2 --
>  1 file changed, 2 deletions(-)
>
> diff --git a/arch/x86/kvm/vmx/vmx.h b/arch/x86/kvm/vmx/vmx.h
> index 8a83b5edc820..639798e4a6ca 100644
> --- a/arch/x86/kvm/vmx/vmx.h
> +++ b/arch/x86/kvm/vmx/vmx.h
> @@ -288,8 +288,6 @@ struct vcpu_vmx {
>  
>  	u64 current_tsc_ratio;
>  
> -	u32 host_pkru;
> -
>  	unsigned long host_debugctlmsr;
>  
>  	/*

(Is there a better [automated] way to figure out whether the particular
field is being used or not than just dropping it and trying to compile
the whole thing? Leaving #define-s, configs,... aside ...)

Reviewed-by: Vitaly Kuznetsov <vkuznets@redhat.com>

-- 
Vitaly