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AJvYcCXPyFAB/AG+qN2yliN6PLIr0jOBv+JN9QG23RIpHYmwS14C8Nv7uBYb0DxJkqnLN1N3eJuVdNl1+YXx@vger.kernel.org X-Gm-Message-State: AOJu0Ywnwf3+WvIKlpG0Ou9IYOaltvNQI5/PfbQFv0Y50+YdYxOG4Owp 7BKWk1ibaDvKn02l1iBp1d7rwvPvi8flVFzbdDBhqQMrV9HeoRakGBp2Io6O7ZpQemNHpKN3/0r Whg== X-Google-Smtp-Source: AGHT+IFBRvTh2AoRMsZzInrrN+gn6icsuEOKduQCozj1AYhvRpYSpNqeaxExZSkYlXTQzmgl2LLloh+gErw= X-Received: from pjbpb10.prod.google.com ([2002:a17:90b:3c0a:b0:2fc:11a0:c54d]) (user=seanjc job=prod-delivery.src-stubby-dispatcher) by 2002:a17:90b:4ec6:b0:2ee:70cb:a500 with SMTP id 98e67ed59e1d1-2fce77a00c5mr23270511a91.1.1740441357604; Mon, 24 Feb 2025 15:55:57 -0800 (PST) Reply-To: Sean Christopherson Date: Mon, 24 Feb 2025 15:55:42 -0800 In-Reply-To: <20250224235542.2562848-1-seanjc@google.com> Precedence: bulk X-Mailing-List: linux-mips@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 References: <20250224235542.2562848-1-seanjc@google.com> X-Mailer: git-send-email 2.48.1.658.g4767266eb4-goog Message-ID: <20250224235542.2562848-8-seanjc@google.com> Subject: [PATCH 7/7] KVM: Drop kvm_arch_sync_events() now that all implementations are nops From: Sean Christopherson To: Marc Zyngier , Oliver Upton , Tianrui Zhao , Bibo Mao , Huacai Chen , Madhavan Srinivasan , Anup Patel , Paul Walmsley , Palmer Dabbelt , Albert Ou , Christian Borntraeger , Janosch Frank , Claudio Imbrenda , Sean Christopherson , Paolo Bonzini Cc: linux-arm-kernel@lists.infradead.org, kvmarm@lists.linux.dev, kvm@vger.kernel.org, loongarch@lists.linux.dev, linux-mips@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, kvm-riscv@lists.infradead.org, linux-riscv@lists.infradead.org, linux-kernel@vger.kernel.org, Aaron Lewis , Jim Mattson , Yan Zhao , Rick P Edgecombe , Kai Huang , Isaku Yamahata Remove kvm_arch_sync_events() now that x86 no longer uses it (no other arch has ever used it). No functional change intended. Signed-off-by: Sean Christopherson --- arch/arm64/include/asm/kvm_host.h | 2 -- arch/loongarch/include/asm/kvm_host.h | 1 - arch/mips/include/asm/kvm_host.h | 1 - arch/powerpc/include/asm/kvm_host.h | 1 - arch/riscv/include/asm/kvm_host.h | 2 -- arch/s390/include/asm/kvm_host.h | 1 - arch/x86/kvm/x86.c | 5 ----- include/linux/kvm_host.h | 1 - virt/kvm/kvm_main.c | 1 - 9 files changed, 15 deletions(-) diff --git a/arch/arm64/include/asm/kvm_host.h b/arch/arm64/include/asm/kvm_host.h index 7cfa024de4e3..40897bd2b4a3 100644 --- a/arch/arm64/include/asm/kvm_host.h +++ b/arch/arm64/include/asm/kvm_host.h @@ -1346,8 +1346,6 @@ static inline bool kvm_system_needs_idmapped_vectors(void) return cpus_have_final_cap(ARM64_SPECTRE_V3A); } -static inline void kvm_arch_sync_events(struct kvm *kvm) {} - void kvm_init_host_debug_data(void); void kvm_vcpu_load_debug(struct kvm_vcpu *vcpu); void kvm_vcpu_put_debug(struct kvm_vcpu *vcpu); diff --git a/arch/loongarch/include/asm/kvm_host.h b/arch/loongarch/include/asm/kvm_host.h index 590982cd986e..ab5b7001e2ff 100644 --- a/arch/loongarch/include/asm/kvm_host.h +++ b/arch/loongarch/include/asm/kvm_host.h @@ -320,7 +320,6 @@ static inline bool kvm_is_ifetch_fault(struct kvm_vcpu_arch *arch) /* Misc */ static inline void kvm_arch_hardware_unsetup(void) {} -static inline void kvm_arch_sync_events(struct kvm *kvm) {} static inline void kvm_arch_memslots_updated(struct kvm *kvm, u64 gen) {} static inline void kvm_arch_vcpu_blocking(struct kvm_vcpu *vcpu) {} static inline void kvm_arch_vcpu_unblocking(struct kvm_vcpu *vcpu) {} diff --git a/arch/mips/include/asm/kvm_host.h b/arch/mips/include/asm/kvm_host.h index f7222eb594ea..c14b10821817 100644 --- a/arch/mips/include/asm/kvm_host.h +++ b/arch/mips/include/asm/kvm_host.h @@ -886,7 +886,6 @@ extern unsigned long kvm_mips_get_ramsize(struct kvm *kvm); extern int kvm_vcpu_ioctl_interrupt(struct kvm_vcpu *vcpu, struct kvm_mips_interrupt *irq); -static inline void kvm_arch_sync_events(struct kvm *kvm) {} static inline void kvm_arch_free_memslot(struct kvm *kvm, struct kvm_memory_slot *slot) {} static inline void kvm_arch_memslots_updated(struct kvm *kvm, u64 gen) {} diff --git a/arch/powerpc/include/asm/kvm_host.h b/arch/powerpc/include/asm/kvm_host.h index 6e1108f8fce6..2d139c807577 100644 --- a/arch/powerpc/include/asm/kvm_host.h +++ b/arch/powerpc/include/asm/kvm_host.h @@ -902,7 +902,6 @@ struct kvm_vcpu_arch { #define __KVM_HAVE_ARCH_WQP #define __KVM_HAVE_CREATE_DEVICE -static inline void kvm_arch_sync_events(struct kvm *kvm) {} static inline void kvm_arch_memslots_updated(struct kvm *kvm, u64 gen) {} static inline void kvm_arch_flush_shadow_all(struct kvm *kvm) {} static inline void kvm_arch_vcpu_blocking(struct kvm_vcpu *vcpu) {} diff --git a/arch/riscv/include/asm/kvm_host.h b/arch/riscv/include/asm/kvm_host.h index cc33e35cd628..0e9c2fab6378 100644 --- a/arch/riscv/include/asm/kvm_host.h +++ b/arch/riscv/include/asm/kvm_host.h @@ -301,8 +301,6 @@ static inline bool kvm_arch_pmi_in_guest(struct kvm_vcpu *vcpu) return IS_ENABLED(CONFIG_GUEST_PERF_EVENTS) && !!vcpu; } -static inline void kvm_arch_sync_events(struct kvm *kvm) {} - #define KVM_RISCV_GSTAGE_TLB_MIN_ORDER 12 void kvm_riscv_local_hfence_gvma_vmid_gpa(unsigned long vmid, diff --git a/arch/s390/include/asm/kvm_host.h b/arch/s390/include/asm/kvm_host.h index 9a367866cab0..424f899d8163 100644 --- a/arch/s390/include/asm/kvm_host.h +++ b/arch/s390/include/asm/kvm_host.h @@ -1056,7 +1056,6 @@ bool kvm_s390_pv_cpu_is_protected(struct kvm_vcpu *vcpu); extern int kvm_s390_gisc_register(struct kvm *kvm, u32 gisc); extern int kvm_s390_gisc_unregister(struct kvm *kvm, u32 gisc); -static inline void kvm_arch_sync_events(struct kvm *kvm) {} static inline void kvm_arch_free_memslot(struct kvm *kvm, struct kvm_memory_slot *slot) {} static inline void kvm_arch_memslots_updated(struct kvm *kvm, u64 gen) {} diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c index ea445e6579f1..454fd6b8f3db 100644 --- a/arch/x86/kvm/x86.c +++ b/arch/x86/kvm/x86.c @@ -12770,11 +12770,6 @@ int kvm_arch_init_vm(struct kvm *kvm, unsigned long type) return ret; } -void kvm_arch_sync_events(struct kvm *kvm) -{ - -} - /** * __x86_set_memory_region: Setup KVM internal memory slot * diff --git a/include/linux/kvm_host.h b/include/linux/kvm_host.h index c28a6aa1f2ed..5438a1b446a6 100644 --- a/include/linux/kvm_host.h +++ b/include/linux/kvm_host.h @@ -1747,7 +1747,6 @@ static inline void kvm_unregister_perf_callbacks(void) {} int kvm_arch_init_vm(struct kvm *kvm, unsigned long type); void kvm_arch_destroy_vm(struct kvm *kvm); -void kvm_arch_sync_events(struct kvm *kvm); int kvm_cpu_has_pending_timer(struct kvm_vcpu *vcpu); diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c index 991e8111e88b..55153494ac70 100644 --- a/virt/kvm/kvm_main.c +++ b/virt/kvm/kvm_main.c @@ -1271,7 +1271,6 @@ static void kvm_destroy_vm(struct kvm *kvm) kvm_destroy_pm_notifier(kvm); kvm_uevent_notify_change(KVM_EVENT_DESTROY_VM, kvm); kvm_destroy_vm_debugfs(kvm); - kvm_arch_sync_events(kvm); mutex_lock(&kvm_lock); list_del(&kvm->vm_list); mutex_unlock(&kvm_lock);