diff options
| author | Yan Zhao <yan.y.zhao@intel.com> | 2023-07-28 18:35:26 -0700 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2023-08-31 14:07:26 -0400 |
| commit | d104d5bbbc2de62fafe0e391dbc7b1e99a58722e (patch) | |
| tree | 202b1f69e8a319796a906edb579fa3847a31a6e6 /arch/x86 | |
| parent | c15fcf12ffb37be314752202fb02cf16138e66fb (diff) | |
KVM: x86: Remove the unused page-track hook track_flush_slot()
Remove ->track_remove_slot(), there are no longer any users and it's
unlikely a "flush" hook will ever be the correct API to provide to an
external page-track user.
Cc: Zhenyu Wang <zhenyuw@linux.intel.com>
Suggested-by: Sean Christopherson <seanjc@google.com>
Signed-off-by: Yan Zhao <yan.y.zhao@intel.com>
Tested-by: Yongwei Ma <yongwei.ma@intel.com>
Link: https://lore.kernel.org/r/20230729013535.1070024-21-seanjc@google.com
Signed-off-by: Sean Christopherson <seanjc@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'arch/x86')
| -rw-r--r-- | arch/x86/include/asm/kvm_page_track.h | 11 | ||||
| -rw-r--r-- | arch/x86/kvm/mmu/mmu.c | 2 | ||||
| -rw-r--r-- | arch/x86/kvm/mmu/page_track.c | 26 |
3 files changed, 0 insertions, 39 deletions
diff --git a/arch/x86/include/asm/kvm_page_track.h b/arch/x86/include/asm/kvm_page_track.h index cfd36c22b467..5c348ffdc194 100644 --- a/arch/x86/include/asm/kvm_page_track.h +++ b/arch/x86/include/asm/kvm_page_track.h @@ -33,16 +33,6 @@ struct kvm_page_track_notifier_node { */ void (*track_write)(gpa_t gpa, const u8 *new, int bytes, struct kvm_page_track_notifier_node *node); - /* - * It is called when memory slot is being moved or removed - * users can drop write-protection for the pages in that memory slot - * - * @kvm: the kvm where memory slot being moved or removed - * @slot: the memory slot being moved or removed - * @node: this node - */ - void (*track_flush_slot)(struct kvm *kvm, struct kvm_memory_slot *slot, - struct kvm_page_track_notifier_node *node); /* * Invoked when a memory region is removed from the guest. Or in KVM @@ -85,7 +75,6 @@ kvm_page_track_unregister_notifier(struct kvm *kvm, struct kvm_page_track_notifier_node *n); void kvm_page_track_write(struct kvm_vcpu *vcpu, gpa_t gpa, const u8 *new, int bytes); -void kvm_page_track_flush_slot(struct kvm *kvm, struct kvm_memory_slot *slot); void kvm_page_track_delete_slot(struct kvm *kvm, struct kvm_memory_slot *slot); bool kvm_page_track_has_external_user(struct kvm *kvm); diff --git a/arch/x86/kvm/mmu/mmu.c b/arch/x86/kvm/mmu/mmu.c index 28385642eb98..90a528dca883 100644 --- a/arch/x86/kvm/mmu/mmu.c +++ b/arch/x86/kvm/mmu/mmu.c @@ -6695,8 +6695,6 @@ void kvm_arch_flush_shadow_memslot(struct kvm *kvm, struct kvm_memory_slot *slot) { kvm_mmu_zap_all_fast(kvm); - - kvm_page_track_flush_slot(kvm, slot); } void kvm_mmu_invalidate_mmio_sptes(struct kvm *kvm, u64 gen) diff --git a/arch/x86/kvm/mmu/page_track.c b/arch/x86/kvm/mmu/page_track.c index 640e383b5252..98fb96357b84 100644 --- a/arch/x86/kvm/mmu/page_track.c +++ b/arch/x86/kvm/mmu/page_track.c @@ -279,32 +279,6 @@ void kvm_page_track_write(struct kvm_vcpu *vcpu, gpa_t gpa, const u8 *new, } /* - * Notify the node that memory slot is being removed or moved so that it can - * drop write-protection for the pages in the memory slot. - * - * The node should figure out it has any write-protected pages in this slot - * by itself. - */ -void kvm_page_track_flush_slot(struct kvm *kvm, struct kvm_memory_slot *slot) -{ - struct kvm_page_track_notifier_head *head; - struct kvm_page_track_notifier_node *n; - int idx; - - head = &kvm->arch.track_notifier_head; - - if (hlist_empty(&head->track_notifier_list)) - return; - - idx = srcu_read_lock(&head->track_srcu); - hlist_for_each_entry_srcu(n, &head->track_notifier_list, node, - srcu_read_lock_held(&head->track_srcu)) - if (n->track_flush_slot) - n->track_flush_slot(kvm, slot, n); - srcu_read_unlock(&head->track_srcu, idx); -} - -/* * Notify external page track nodes that a memory region is being removed from * the VM, e.g. so that users can free any associated metadata. */ |