linux-kernel - Re: [KVM x86 vPMU Patch 1/2] KVM: x86/vPMU: Move the definition of kvm_pmu

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Date:	Tue, 11 Aug 2015 09:32:51 +0200
From:	Andrew Jones <drjones@...hat.com>
To:	Wei Huang <wei@...hat.com>
Cc:	kvm@...r.kernel.org, linux-kernel@...r.kernel.org,
	pbonzini@...hat.com, gleb@...nel.org, tglx@...utronix.de,
	mingo@...hat.com, hpa@...or.com, x86@...nel.org, joro@...tes.org,
	trivial@...nel.org
Subject: Re: [KVM x86 vPMU Patch 1/2] KVM: x86/vPMU: Move the definition of
 kvm_pmu_ops to arch-specific files

On Fri, Aug 07, 2015 at 03:53:29PM -0400, Wei Huang wrote:
> Instead of being defined in a common header file, the kvm_pmu_ops struct
> is arch (vmx/svm) specific. This trivial patch relocates two extern
> variable definition to their arch-specific files.
> 
> Signed-off-by: Wei Huang <wei@...hat.com>
> ---
>  arch/x86/kvm/pmu.h | 2 --
>  arch/x86/kvm/svm.c | 1 +
>  arch/x86/kvm/vmx.c | 1 +
>  3 files changed, 2 insertions(+), 2 deletions(-)
> 
> diff --git a/arch/x86/kvm/pmu.h b/arch/x86/kvm/pmu.h
> index f96e1f9..95184fd 100644
> --- a/arch/x86/kvm/pmu.h
> +++ b/arch/x86/kvm/pmu.h
> @@ -113,6 +113,4 @@ void kvm_pmu_reset(struct kvm_vcpu *vcpu);
>  void kvm_pmu_init(struct kvm_vcpu *vcpu);
>  void kvm_pmu_destroy(struct kvm_vcpu *vcpu);
>  
> -extern struct kvm_pmu_ops intel_pmu_ops;
> -extern struct kvm_pmu_ops amd_pmu_ops;
>  #endif /* __KVM_X86_PMU_H */
> diff --git a/arch/x86/kvm/svm.c b/arch/x86/kvm/svm.c
> index 8e0c084..8abf980 100644
> --- a/arch/x86/kvm/svm.c
> +++ b/arch/x86/kvm/svm.c
> @@ -4452,6 +4452,7 @@ static void svm_sched_in(struct kvm_vcpu *vcpu, int cpu)
>  {
>  }
>  
> +extern struct kvm_pmu_ops amd_pmu_ops;
>  static struct kvm_x86_ops svm_x86_ops = {
>  	.cpu_has_kvm_support = has_svm,
>  	.disabled_by_bios = is_disabled,
> diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c
> index 83b7b5c..6b2419d 100644
> --- a/arch/x86/kvm/vmx.c
> +++ b/arch/x86/kvm/vmx.c
> @@ -10302,6 +10302,7 @@ static void vmx_enable_log_dirty_pt_masked(struct kvm *kvm,
>  	kvm_mmu_clear_dirty_pt_masked(kvm, memslot, offset, mask);
>  }
>  
> +extern struct kvm_pmu_ops intel_pmu_ops;
>  static struct kvm_x86_ops vmx_x86_ops = {
>  	.cpu_has_kvm_support = cpu_has_kvm_support,
>  	.disabled_by_bios = vmx_disabled_by_bios,
> -- 
> 1.8.3.1
> 
> --
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Reviewed-by: Andrew Jones <drjones@...hat.com>
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