19  * @list:	Entry within &acrn_vm.ioeventfds of ioeventfds of a VM
43 static void acrn_ioeventfd_shutdown(struct acrn_vm *vm, struct hsm_ioeventfd *p)  in acrn_ioeventfd_shutdown()  argument
45 	lockdep_assert_held(&vm->ioeventfds_lock);  in acrn_ioeventfd_shutdown()
52 static bool hsm_ioeventfd_is_conflict(struct acrn_vm *vm,  in hsm_ioeventfd_is_conflict()  argument
57 	lockdep_assert_held(&vm->ioeventfds_lock);  in hsm_ioeventfd_is_conflict()
60 	list_for_each_entry(p, &vm->ioeventfds, list)  in hsm_ioeventfd_is_conflict()
72  * Assign an eventfd to a VM and create a HSM ioeventfd associated with the
76 static int acrn_ioeventfd_assign(struct acrn_vm *vm,  in acrn_ioeventfd_assign()  argument
121 	mutex_lock(&vm->ioeventfds_lock);  in acrn_ioeventfd_assign()
123 	if (hsm_ioeventfd_is_conflict(vm, p)) {  in acrn_ioeventfd_assign()
129 	ret = acrn_ioreq_range_add(vm->ioeventfd_client, p->type,  in acrn_ioeventfd_assign()
134 	list_add_tail(&p->list, &vm->ioeventfds);  in acrn_ioeventfd_assign()
135 	mutex_unlock(&vm->ioeventfds_lock);  in acrn_ioeventfd_assign()
140 	mutex_unlock(&vm->ioeventfds_lock);  in acrn_ioeventfd_assign()
147 static int acrn_ioeventfd_deassign(struct acrn_vm *vm,  in acrn_ioeventfd_deassign()  argument
157 	mutex_lock(&vm->ioeventfds_lock);  in acrn_ioeventfd_deassign()
158 	list_for_each_entry(p, &vm->ioeventfds, list) {  in acrn_ioeventfd_deassign()
162 		acrn_ioreq_range_del(vm->ioeventfd_client, p->type,  in acrn_ioeventfd_deassign()
164 		acrn_ioeventfd_shutdown(vm, p);  in acrn_ioeventfd_deassign()
167 	mutex_unlock(&vm->ioeventfds_lock);  in acrn_ioeventfd_deassign()
173 static struct hsm_ioeventfd *hsm_ioeventfd_match(struct acrn_vm *vm, u64 addr,  in hsm_ioeventfd_match()  argument
178 	lockdep_assert_held(&vm->ioeventfds_lock);  in hsm_ioeventfd_match()
180 	list_for_each_entry(p, &vm->ioeventfds, list) {  in hsm_ioeventfd_match()
223 	mutex_lock(&client->vm->ioeventfds_lock);  in acrn_ioeventfd_handler()
224 	p = hsm_ioeventfd_match(client->vm, addr, val, size, req->type);  in acrn_ioeventfd_handler()
227 	mutex_unlock(&client->vm->ioeventfds_lock);  in acrn_ioeventfd_handler()
232 int acrn_ioeventfd_config(struct acrn_vm *vm, struct acrn_ioeventfd *args)  in acrn_ioeventfd_config()  argument
237 		ret = acrn_ioeventfd_deassign(vm, args);  in acrn_ioeventfd_config()
239 		ret = acrn_ioeventfd_assign(vm, args);  in acrn_ioeventfd_config()
244 int acrn_ioeventfd_init(struct acrn_vm *vm)  in acrn_ioeventfd_init()  argument
248 	mutex_init(&vm->ioeventfds_lock);  in acrn_ioeventfd_init()
249 	INIT_LIST_HEAD(&vm->ioeventfds);  in acrn_ioeventfd_init()
250 	snprintf(name, sizeof(name), "ioeventfd-%u", vm->vmid);  in acrn_ioeventfd_init()
251 	vm->ioeventfd_client = acrn_ioreq_client_create(vm,  in acrn_ioeventfd_init()
254 	if (!vm->ioeventfd_client) {  in acrn_ioeventfd_init()
259 	dev_dbg(acrn_dev.this_device, "VM %u ioeventfd init.\n", vm->vmid);  in acrn_ioeventfd_init()
263 void acrn_ioeventfd_deinit(struct acrn_vm *vm)  in acrn_ioeventfd_deinit()  argument
267 	dev_dbg(acrn_dev.this_device, "VM %u ioeventfd deinit.\n", vm->vmid);  in acrn_ioeventfd_deinit()
268 	acrn_ioreq_client_destroy(vm->ioeventfd_client);  in acrn_ioeventfd_deinit()
269 	mutex_lock(&vm->ioeventfds_lock);  in acrn_ioeventfd_deinit()
270 	list_for_each_entry_safe(p, next, &vm->ioeventfds, list)  in acrn_ioeventfd_deinit()
271 		acrn_ioeventfd_shutdown(vm, p);  in acrn_ioeventfd_deinit()
272 	mutex_unlock(&vm->ioeventfds_lock);  in acrn_ioeventfd_deinit()