Re: [PATCH v2 2/5] KVM: VMX: Drop unneeded CONFIG_X86_LOCAL_APIC check from cpu_has_vmx_posted_intr()

From: Maxim Levitsky
Date: Wed May 26 2021 - 05:55:01 EST


On Tue, 2021-05-18 at 16:43 +0200, Vitaly Kuznetsov wrote:
> CONFIG_X86_LOCAL_APIC is always on when CONFIG_KVM (on x86) since
> commit e42eef4ba388 ("KVM: add X86_LOCAL_APIC dependency").
>
> Suggested-by: Sean Christopherson <seanjc@xxxxxxxxxx>
> Signed-off-by: Vitaly Kuznetsov <vkuznets@xxxxxxxxxx>
> ---
> arch/x86/kvm/vmx/capabilities.h | 3 +--
> 1 file changed, 1 insertion(+), 2 deletions(-)
>
> diff --git a/arch/x86/kvm/vmx/capabilities.h b/arch/x86/kvm/vmx/capabilities.h
> index 8dee8a5fbc17..aa0e7872fcc9 100644
> --- a/arch/x86/kvm/vmx/capabilities.h
> +++ b/arch/x86/kvm/vmx/capabilities.h
> @@ -90,8 +90,7 @@ static inline bool cpu_has_vmx_preemption_timer(void)
>
> static inline bool cpu_has_vmx_posted_intr(void)
> {
> - return IS_ENABLED(CONFIG_X86_LOCAL_APIC) &&
> - vmcs_config.pin_based_exec_ctrl & PIN_BASED_POSTED_INTR;
> + return vmcs_config.pin_based_exec_ctrl & PIN_BASED_POSTED_INTR;
> }
>
> static inline bool cpu_has_load_ia32_efer(void)
Reviewed-by: Maxim Levitsky <mlevitsk@xxxxxxxxxx>
Best regards,
Maxim Levitsky