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SubjectRe: [PATCH RFC 04/11] KVM: x86: hyper-v: Introduce kvm_hv_synic_auto_eoi_set()
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У вт, 2023-10-10 у 18:02 +0200, Vitaly Kuznetsov пише:
> As a preparation to making Hyper-V emulation optional, create a dedicated
> kvm_hv_synic_auto_eoi_set() helper to avoid extra ifdefs in lapic.c
>
> No functional change intended.
>
> Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
> ---
> arch/x86/kvm/hyperv.h | 5 +++++
> arch/x86/kvm/lapic.c | 2 +-
> 2 files changed, 6 insertions(+), 1 deletion(-)
>
> diff --git a/arch/x86/kvm/hyperv.h b/arch/x86/kvm/hyperv.h
> index f83b8db72b11..1897a219981d 100644
> --- a/arch/x86/kvm/hyperv.h
> +++ b/arch/x86/kvm/hyperv.h
> @@ -105,6 +105,11 @@ int kvm_hv_synic_set_irq(struct kvm *kvm, u32 vcpu_id, u32 sint);
> void kvm_hv_synic_send_eoi(struct kvm_vcpu *vcpu, int vector);
> int kvm_hv_activate_synic(struct kvm_vcpu *vcpu, bool dont_zero_synic_pages);
>
> +static inline bool kvm_hv_synic_auto_eoi_set(struct kvm_vcpu *vcpu, int vector)
> +{
> + return to_hv_vcpu(vcpu) && test_bit(vector, to_hv_synic(vcpu)->auto_eoi_bitmap);
> +}
> +
> void kvm_hv_vcpu_uninit(struct kvm_vcpu *vcpu);
>
> bool kvm_hv_assist_page_enabled(struct kvm_vcpu *vcpu);
> diff --git a/arch/x86/kvm/lapic.c b/arch/x86/kvm/lapic.c
> index dcd60b39e794..0e80c1fdf899 100644
> --- a/arch/x86/kvm/lapic.c
> +++ b/arch/x86/kvm/lapic.c
> @@ -2899,7 +2899,7 @@ int kvm_get_apic_interrupt(struct kvm_vcpu *vcpu)
> */
>
> apic_clear_irr(vector, apic);
> - if (to_hv_vcpu(vcpu) && test_bit(vector, to_hv_synic(vcpu)->auto_eoi_bitmap)) {
> + if (kvm_hv_synic_auto_eoi_set(vcpu, vector)) {
> /*
> * For auto-EOI interrupts, there might be another pending
> * interrupt above PPR, so check whether to raise another

Reviewed-by: Maxim Levitsky <mlevitsk@redhat.com>

Best regards,
Maxim Levitsky

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