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KVM: Drop kvm_arch_sync_events() now that all implementations are nops 

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 <seanjc@google.com>
Acked-by: Claudio Imbrenda <imbrenda@linux.ibm.com>
Reviewed-by: Bibo Mao <maobibo@loongson.cn>
Message-ID: <20250224235542.2562848-8-seanjc@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
pull/1184/head
Sean Christopherson 2025-02-24 15:55:42 -08:00 committed by Paolo Bonzini
parent fd21732682
commit b2aba529bf
9 changed files with 0 additions and 15 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
arch/arm64/include/asm/kvm_host.h
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@ -1334,8 +1334,6 @@ 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);

1
arch/loongarch/include/asm/kvm_host.h
View File

@ -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) {}

1
arch/mips/include/asm/kvm_host.h
View File

@ -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) {}

1
arch/powerpc/include/asm/kvm_host.h
View File

@ -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) {}

2
arch/riscv/include/asm/kvm_host.h
View File

@ -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,

1
arch/s390/include/asm/kvm_host.h
View File

@ -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) {}

5
arch/x86/kvm/x86.c
View File

@ -12757,11 +12757,6 @@ out:
return ret;
}
void kvm_arch_sync_events(struct kvm *kvm)
{
}
/**
* __x86_set_memory_region: Setup KVM internal memory slot
*

1
include/linux/kvm_host.h
View File

@ -1746,7 +1746,6 @@ 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);

1
virt/kvm/kvm_main.c
View File

@ -1262,7 +1262,6 @@ 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);