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SubjectRe: [PATCH v13 02/10] KVM: x86/vmx: Make vmx_set_intercept_for_msr() non-static and expose it
On Sun, Jul 26, 2020 at 11:32:21PM +0800, Like Xu wrote:
> It's reasonable to call vmx_set_intercept_for_msr() in other vmx-specific
> files (e.g. pmu_intel.c), so expose it without semantic changes hopefully.

I suppose it's reasonable, but you still need to state what is actually
going to use it.

> Signed-off-by: Like Xu <like.xu@linux.intel.com>
> ---
> arch/x86/kvm/vmx/vmx.c | 4 ++--
> arch/x86/kvm/vmx/vmx.h | 2 ++
> 2 files changed, 4 insertions(+), 2 deletions(-)
>
> diff --git a/arch/x86/kvm/vmx/vmx.c b/arch/x86/kvm/vmx/vmx.c
> index dcde73a230c6..162c668d58f5 100644
> --- a/arch/x86/kvm/vmx/vmx.c
> +++ b/arch/x86/kvm/vmx/vmx.c
> @@ -3772,8 +3772,8 @@ static __always_inline void vmx_enable_intercept_for_msr(unsigned long *msr_bitm
> }
> }
>
> -static __always_inline void vmx_set_intercept_for_msr(unsigned long *msr_bitmap,
> - u32 msr, int type, bool value)
> +__always_inline void vmx_set_intercept_for_msr(unsigned long *msr_bitmap,
> + u32 msr, int type, bool value)
> {
> if (value)
> vmx_enable_intercept_for_msr(msr_bitmap, msr, type);
> diff --git a/arch/x86/kvm/vmx/vmx.h b/arch/x86/kvm/vmx/vmx.h
> index 0d06951e607c..08c850596cfc 100644
> --- a/arch/x86/kvm/vmx/vmx.h
> +++ b/arch/x86/kvm/vmx/vmx.h
> @@ -356,6 +356,8 @@ void vmx_update_host_rsp(struct vcpu_vmx *vmx, unsigned long host_rsp);
> int vmx_find_msr_index(struct vmx_msrs *m, u32 msr);
> int vmx_handle_memory_failure(struct kvm_vcpu *vcpu, int r,
> struct x86_exception *e);
> +void vmx_set_intercept_for_msr(unsigned long *msr_bitmap,
> + u32 msr, int type, bool value);

This completely defeats the purpose of __always_inline.

>
> #define POSTED_INTR_ON 0
> #define POSTED_INTR_SN 1
> --
> 2.21.3
>

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