linux-kernel - Re: [PATCH 7/8] KVM: SEV-ES: keep INS functions together

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Message-ID: <33411fb1d0a98057249ae27a86909b03be21c8e2.camel@redhat.com>
Date:   Fri, 22 Oct 2021 02:14:49 +0300
From:   Maxim Levitsky <mlevitsk@...hat.com>
To:     Paolo Bonzini <pbonzini@...hat.com>, linux-kernel@...r.kernel.org,
        kvm@...r.kernel.org
Cc:     fwilhelm@...gle.com, seanjc@...gle.com, oupton@...gle.com,
        stable@...r.kernel.org
Subject: Re: [PATCH 7/8] KVM: SEV-ES: keep INS functions together

On Wed, 2021-10-13 at 12:56 -0400, Paolo Bonzini wrote:
> Make the diff a little nicer when we actually get to fixing
> the bug.  No functional change intended.
> 
> Cc: stable@...r.kernel.org
> Fixes: 7ed9abfe8e9f ("KVM: SVM: Support string IO operations for an SEV-ES guest")
> Signed-off-by: Paolo Bonzini <pbonzini@...hat.com>
> ---
>  arch/x86/kvm/x86.c | 18 +++++++++---------
>  1 file changed, 9 insertions(+), 9 deletions(-)
> 
> diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
> index ef4d6a0de4d8..a485e185ad00 100644
> --- a/arch/x86/kvm/x86.c
> +++ b/arch/x86/kvm/x86.c
> @@ -12377,15 +12377,6 @@ int kvm_sev_es_mmio_read(struct kvm_vcpu *vcpu, gpa_t gpa, unsigned int bytes,
>  }
>  EXPORT_SYMBOL_GPL(kvm_sev_es_mmio_read);
>  
> -static int complete_sev_es_emulated_ins(struct kvm_vcpu *vcpu)
> -{
> -	memcpy(vcpu->arch.sev_pio_data, vcpu->arch.pio_data,
> -	       vcpu->arch.pio.count * vcpu->arch.pio.size);
> -	vcpu->arch.pio.count = 0;
> -
> -	return 1;
> -}
> -
>  static int kvm_sev_es_outs(struct kvm_vcpu *vcpu, unsigned int size,
>  			   unsigned int port, unsigned int count)
>  {
> @@ -12401,6 +12392,15 @@ static int kvm_sev_es_outs(struct kvm_vcpu *vcpu, unsigned int size,
>  	return 0;
>  }
>  
> +static int complete_sev_es_emulated_ins(struct kvm_vcpu *vcpu)
> +{
> +	memcpy(vcpu->arch.sev_pio_data, vcpu->arch.pio_data,
> +	       vcpu->arch.pio.count * vcpu->arch.pio.size);
> +	vcpu->arch.pio.count = 0;
> +
> +	return 1;
> +}
> +
>  static int kvm_sev_es_ins(struct kvm_vcpu *vcpu, unsigned int size,
>  			  unsigned int port, unsigned int count)
>  {
Reviewed-by: Maxim Levitsky <mlevitsk@...hat.com>
Best regards,
	Maxim Levitsky