Re: [RFC PATCH 24/35] KVM: SVM: Add support for CR8 write traps for an SEV-ES guest

[Sean Christopherson]

On Mon, Sep 14, 2020 at 03:15:38PM -0500, Tom Lendacky wrote:
> diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
> index 5e5f1e8fed3a..6e445a76b691 100644
> --- a/arch/x86/kvm/x86.c
> +++ b/arch/x86/kvm/x86.c
> @@ -1109,6 +1109,12 @@ unsigned long kvm_get_cr8(struct kvm_vcpu *vcpu)
>  }
>  EXPORT_SYMBOL_GPL(kvm_get_cr8);
>  
> +int kvm_track_cr8(struct kvm_vcpu *vcpu, unsigned long cr8)
> +{
> +	return kvm_set_cr8(vcpu, cr8);

I'm guessing this was added to achieve consistency at the SVM call sites.
With the previously suggested changes, kvm_track_cr8() can simply be
dropped.

> +}
> +EXPORT_SYMBOL_GPL(kvm_track_cr8);
> +
>  static void kvm_update_dr0123(struct kvm_vcpu *vcpu)
>  {
>  	int i;
> -- 
> 2.28.0
>