thermal: fix Mediatek thermal controller build
[linux/fpc-iii.git] / arch / x86 / include / asm / kvm_page_track.h
blobc2b8d24a235c0bff7bc2cb82cdfd589158875746
1 #ifndef _ASM_X86_KVM_PAGE_TRACK_H
2 #define _ASM_X86_KVM_PAGE_TRACK_H
4 enum kvm_page_track_mode {
5 KVM_PAGE_TRACK_WRITE,
6 KVM_PAGE_TRACK_MAX,
7 };
9 /*
10 * The notifier represented by @kvm_page_track_notifier_node is linked into
11 * the head which will be notified when guest is triggering the track event.
13 * Write access on the head is protected by kvm->mmu_lock, read access
14 * is protected by track_srcu.
16 struct kvm_page_track_notifier_head {
17 struct srcu_struct track_srcu;
18 struct hlist_head track_notifier_list;
21 struct kvm_page_track_notifier_node {
22 struct hlist_node node;
25 * It is called when guest is writing the write-tracked page
26 * and write emulation is finished at that time.
28 * @vcpu: the vcpu where the write access happened.
29 * @gpa: the physical address written by guest.
30 * @new: the data was written to the address.
31 * @bytes: the written length.
33 void (*track_write)(struct kvm_vcpu *vcpu, gpa_t gpa, const u8 *new,
34 int bytes);
37 void kvm_page_track_init(struct kvm *kvm);
39 void kvm_page_track_free_memslot(struct kvm_memory_slot *free,
40 struct kvm_memory_slot *dont);
41 int kvm_page_track_create_memslot(struct kvm_memory_slot *slot,
42 unsigned long npages);
44 void kvm_slot_page_track_add_page(struct kvm *kvm,
45 struct kvm_memory_slot *slot, gfn_t gfn,
46 enum kvm_page_track_mode mode);
47 void kvm_slot_page_track_remove_page(struct kvm *kvm,
48 struct kvm_memory_slot *slot, gfn_t gfn,
49 enum kvm_page_track_mode mode);
50 bool kvm_page_track_is_active(struct kvm_vcpu *vcpu, gfn_t gfn,
51 enum kvm_page_track_mode mode);
53 void
54 kvm_page_track_register_notifier(struct kvm *kvm,
55 struct kvm_page_track_notifier_node *n);
56 void
57 kvm_page_track_unregister_notifier(struct kvm *kvm,
58 struct kvm_page_track_notifier_node *n);
59 void kvm_page_track_write(struct kvm_vcpu *vcpu, gpa_t gpa, const u8 *new,
60 int bytes);
61 #endif