Merge tag 'tags/for-kvmgt' into HEAD

The three KVM patches that KVMGT needs.

Conflicts:
	arch/x86/include/asm/kvm_page_track.h
	arch/x86/kvm/mmu.c

arch/x86/include/asm/kvm_page_track.h

@@ -29,17 +29,20 @@ struct kvm_page_track_notifier_node {
 	 * @gpa: the physical address written by guest.
 	 * @new: the data was written to the address.
 	 * @bytes: the written length.
+	 * @node: this node
 	 */
 	void (*track_write)(struct kvm_vcpu *vcpu, gpa_t gpa, const u8 *new,
-			    int bytes);
+			    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);
+	void (*track_flush_slot)(struct kvm *kvm, struct kvm_memory_slot *slot,
+			    struct kvm_page_track_notifier_node *node);
 };
 
 void kvm_page_track_init(struct kvm *kvm);

arch/x86/kvm/mmu.c

@@ -4397,7 +4397,8 @@ static u64 *get_written_sptes(struct kvm_mmu_page *sp, gpa_t gpa, int *nspte)
 }
 
 static void kvm_mmu_pte_write(struct kvm_vcpu *vcpu, gpa_t gpa,
-			      const u8 *new, int bytes)
+			      const u8 *new, int bytes,
+			      struct kvm_page_track_notifier_node *node)
 {
 	gfn_t gfn = gpa >> PAGE_SHIFT;
 	struct kvm_mmu_page *sp;
@@ -4610,7 +4611,8 @@ void kvm_mmu_setup(struct kvm_vcpu *vcpu)
 }
 
 static void kvm_mmu_invalidate_zap_pages_in_memslot(struct kvm *kvm,
-			struct kvm_memory_slot *slot)
+			struct kvm_memory_slot *slot,
+			struct kvm_page_track_notifier_node *node)
 {
 	kvm_mmu_invalidate_zap_all_pages(kvm);
 }

arch/x86/kvm/page_track.c

@@ -106,6 +106,7 @@ void kvm_slot_page_track_add_page(struct kvm *kvm,
 		if (kvm_mmu_slot_gfn_write_protect(kvm, slot, gfn))
 			kvm_flush_remote_tlbs(kvm);
 }
+EXPORT_SYMBOL_GPL(kvm_slot_page_track_add_page);
 
 /*
  * remove the guest page from the tracking pool which stops the interception
@@ -135,6 +136,7 @@ void kvm_slot_page_track_remove_page(struct kvm *kvm,
 	 */
 	kvm_mmu_gfn_allow_lpage(slot, gfn);
 }
+EXPORT_SYMBOL_GPL(kvm_slot_page_track_remove_page);
 
 /*
  * check if the corresponding access on the specified guest page is tracked.
@@ -181,6 +183,7 @@ kvm_page_track_register_notifier(struct kvm *kvm,
 	hlist_add_head_rcu(&n->node, &head->track_notifier_list);
 	spin_unlock(&kvm->mmu_lock);
 }
+EXPORT_SYMBOL_GPL(kvm_page_track_register_notifier);
 
 /*
  * stop receiving the event interception. It is the opposed operation of
@@ -199,6 +202,7 @@ kvm_page_track_unregister_notifier(struct kvm *kvm,
 	spin_unlock(&kvm->mmu_lock);
 	synchronize_srcu(&head->track_srcu);
 }
+EXPORT_SYMBOL_GPL(kvm_page_track_unregister_notifier);
 
 /*
  * Notify the node that write access is intercepted and write emulation is
@@ -222,7 +226,7 @@ void kvm_page_track_write(struct kvm_vcpu *vcpu, gpa_t gpa, const u8 *new,
 	idx = srcu_read_lock(&head->track_srcu);
 	hlist_for_each_entry_rcu(n, &head->track_notifier_list, node)
 		if (n->track_write)
-			n->track_write(vcpu, gpa, new, bytes);
+			n->track_write(vcpu, gpa, new, bytes, n);
 	srcu_read_unlock(&head->track_srcu, idx);
 }
 
@@ -247,6 +251,6 @@ void kvm_page_track_flush_slot(struct kvm *kvm, struct kvm_memory_slot *slot)
 	idx = srcu_read_lock(&head->track_srcu);
 	hlist_for_each_entry_rcu(n, &head->track_notifier_list, node)
 		if (n->track_flush_slot)
-			n->track_flush_slot(kvm, slot);
+			n->track_flush_slot(kvm, slot, n);
 	srcu_read_unlock(&head->track_srcu, idx);
 }