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[91.219.240.17]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-447f18251adsm25481865e9.2.2025.05.20.02.57.00 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 20 May 2025 02:57:01 -0700 (PDT) From: Vitaly Kuznetsov To: Sean Christopherson Cc: kvm@vger.kernel.org, linux-kernel@vger.kernel.org, Paolo Bonzini Subject: Re: [PATCH 04/15] KVM: x86: Drop superfluous kvm_hv_set_sint() => kvm_hv_synic_set_irq() wrapper In-Reply-To: <20250519232808.2745331-5-seanjc@google.com> References: <20250519232808.2745331-1-seanjc@google.com> <20250519232808.2745331-5-seanjc@google.com> Date: Tue, 20 May 2025 11:57:00 +0200 Message-ID: <87iklvob9v.fsf@redhat.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain Sean Christopherson writes: > Drop the superfluous kvm_hv_set_sint() and instead wire up ->set() directly > to its final destination. > > No functional change intended. > > Signed-off-by: Sean Christopherson Nitpick: synic_set_irq() still has trace_kvm_hv_synic_set_irq() but kvm_hv_synic_set_irq() is now gone, I think it may make sense to rename it to e.g. 'trace_kvm_hv_set_sint' or 'trace_synic_set_irq' to avoid any confusion. Reviewed-by: Vitaly Kuznetsov > --- > arch/x86/kvm/hyperv.c | 10 +++++++--- > arch/x86/kvm/hyperv.h | 3 ++- > arch/x86/kvm/irq_comm.c | 12 ------------ > 3 files changed, 9 insertions(+), 16 deletions(-) > > diff --git a/arch/x86/kvm/hyperv.c b/arch/x86/kvm/hyperv.c > index 24f0318c50d7..7f565636edde 100644 > --- a/arch/x86/kvm/hyperv.c > +++ b/arch/x86/kvm/hyperv.c > @@ -497,15 +497,19 @@ static int synic_set_irq(struct kvm_vcpu_hv_synic *synic, u32 sint) > return ret; > } > > -int kvm_hv_synic_set_irq(struct kvm *kvm, u32 vpidx, u32 sint) > +int kvm_hv_set_sint(struct kvm_kernel_irq_routing_entry *e, struct kvm *kvm, > + int irq_source_id, int level, bool line_status) > { > struct kvm_vcpu_hv_synic *synic; > > - synic = synic_get(kvm, vpidx); > + if (!level) > + return -1; > + > + synic = synic_get(kvm, e->hv_sint.vcpu); > if (!synic) > return -EINVAL; > > - return synic_set_irq(synic, sint); > + return synic_set_irq(synic, e->hv_sint.sint); > } > > void kvm_hv_synic_send_eoi(struct kvm_vcpu *vcpu, int vector) > diff --git a/arch/x86/kvm/hyperv.h b/arch/x86/kvm/hyperv.h > index 913bfc96959c..4ad5a0749739 100644 > --- a/arch/x86/kvm/hyperv.h > +++ b/arch/x86/kvm/hyperv.h > @@ -103,7 +103,8 @@ static inline bool kvm_hv_hypercall_enabled(struct kvm_vcpu *vcpu) > int kvm_hv_hypercall(struct kvm_vcpu *vcpu); > > void kvm_hv_irq_routing_update(struct kvm *kvm); > -int kvm_hv_synic_set_irq(struct kvm *kvm, u32 vcpu_id, u32 sint); > +int kvm_hv_set_sint(struct kvm_kernel_irq_routing_entry *e, struct kvm *kvm, > + int irq_source_id, int level, bool line_status); > 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); > > diff --git a/arch/x86/kvm/irq_comm.c b/arch/x86/kvm/irq_comm.c > index 8dcb6a555902..b85e4be2ddff 100644 > --- a/arch/x86/kvm/irq_comm.c > +++ b/arch/x86/kvm/irq_comm.c > @@ -127,18 +127,6 @@ int kvm_set_msi(struct kvm_kernel_irq_routing_entry *e, > return kvm_irq_delivery_to_apic(kvm, NULL, &irq, NULL); > } > > -#ifdef CONFIG_KVM_HYPERV > -static int kvm_hv_set_sint(struct kvm_kernel_irq_routing_entry *e, > - struct kvm *kvm, int irq_source_id, int level, > - bool line_status) > -{ > - if (!level) > - return -1; > - > - return kvm_hv_synic_set_irq(kvm, e->hv_sint.vcpu, e->hv_sint.sint); > -} > -#endif > - > int kvm_arch_set_irq_inatomic(struct kvm_kernel_irq_routing_entry *e, > struct kvm *kvm, int irq_source_id, int level, > bool line_status) -- Vitaly