94 	struct hv_vcpu *hv;  in setup_cpu()  local
100 	hv = &hv_vcpus[vcpu];  in setup_cpu()
102 	hv->msg_page = alloc_page();  in setup_cpu()
103 	hv->evt_page = alloc_page();  in setup_cpu()
104 	hv->post_msg = alloc_page();  in setup_cpu()
105 	if (!hv->msg_page || !hv->evt_page || !hv->post_msg)  in setup_cpu()
107 	hv->msg_conn = MSG_CONN_BASE + vcpu;  in setup_cpu()
108 	hv->evt_conn = EVT_CONN_BASE + vcpu;  in setup_cpu()
111 	      (u64)virt_to_phys(hv->msg_page) | HV_SYNIC_SIMP_ENABLE);  in setup_cpu()
113 	      (u64)virt_to_phys(hv->evt_page) | HV_SYNIC_SIEFP_ENABLE);  in setup_cpu()
116 	msg_conn_create(MSG_SINT, MSG_VEC, hv->msg_conn);  in setup_cpu()
117 	evt_conn_create(EVT_SINT, EVT_VEC, hv->evt_conn);  in setup_cpu()
119 	hv->post_msg->connectionid = hv->msg_conn;  in setup_cpu()
120 	hv->post_msg->message_type = MSG_TYPE;  in setup_cpu()
121 	hv->post_msg->payload_size = 8;  in setup_cpu()
122 	hv->post_msg->payload[0] = (u64)vcpu << 16;  in setup_cpu()
128 	struct hv_vcpu *hv = &hv_vcpus[vcpu];  in teardown_cpu()  local
130 	evt_conn_destroy(EVT_SINT, hv->evt_conn);  in teardown_cpu()
131 	msg_conn_destroy(MSG_SINT, hv->msg_conn);  in teardown_cpu()
137 	free_page(hv->post_msg);  in teardown_cpu()
138 	free_page(hv->evt_page);  in teardown_cpu()
139 	free_page(hv->msg_page);  in teardown_cpu()
145 	struct hv_vcpu *hv = &hv_vcpus[vcpu];  in do_msg()  local
146 	struct hv_input_post_message *msg = hv->post_msg;  in do_msg()
149 	atomic_set(&hv->sint_received, 0);  in do_msg()
150 	hv->hvcall_status = do_hypercall(HVCALL_POST_MESSAGE,  in do_msg()
159 	struct hv_vcpu *hv = &hv_vcpus[vcpu];  in clear_msg()  local
160 	struct hv_message *msg = &hv->msg_page->sint_message[MSG_SINT];  in clear_msg()
162 	atomic_set(&hv->sint_received, 0);  in clear_msg()
171 	struct hv_vcpu *hv = &hv_vcpus[vcpu];  in msg_ok()  local
172 	struct hv_input_post_message *post_msg = hv->post_msg;  in msg_ok()
173 	struct hv_message *msg = &hv->msg_page->sint_message[MSG_SINT];  in msg_ok()
179 		hv->hvcall_status == 0 &&  in msg_ok()
180 		atomic_read(&hv->sint_received) == 1;  in msg_ok()
185 	struct hv_vcpu *hv = &hv_vcpus[vcpu];  in msg_busy()  local
186 	struct hv_input_post_message *post_msg = hv->post_msg;  in msg_busy()
187 	struct hv_message *msg = &hv->msg_page->sint_message[MSG_SINT];  in msg_busy()
193 		hv->hvcall_status == 0 &&  in msg_busy()
194 		atomic_read(&hv->sint_received) == 0;  in msg_busy()
200 	struct hv_vcpu *hv = &hv_vcpus[vcpu];  in do_evt()  local
202 	atomic_set(&hv->sint_received, 0);  in do_evt()
203 	hv->hvcall_status = do_hypercall(HVCALL_SIGNAL_EVENT,  in do_evt()
204 					 hv->evt_conn, 1);  in do_evt()
212 	struct hv_vcpu *hv = &hv_vcpus[vcpu];  in clear_evt()  local
213 	ulong *flags = hv->evt_page->slot[EVT_SINT].flags;  in clear_evt()
215 	atomic_set(&hv->sint_received, 0);  in clear_evt()
216 	flags[BIT_WORD(hv->evt_conn)] &= ~BIT_MASK(hv->evt_conn);  in clear_evt()
223 	struct hv_vcpu *hv = &hv_vcpus[vcpu];  in evt_ok()  local
224 	ulong *flags = hv->evt_page->slot[EVT_SINT].flags;  in evt_ok()
226 	return flags[BIT_WORD(hv->evt_conn)] == BIT_MASK(hv->evt_conn) &&  in evt_ok()
227 		hv->hvcall_status == 0 &&  in evt_ok()
228 		atomic_read(&hv->sint_received) == 1;  in evt_ok()
233 	struct hv_vcpu *hv = &hv_vcpus[vcpu];  in evt_busy()  local
234 	ulong *flags = hv->evt_page->slot[EVT_SINT].flags;  in evt_busy()
236 	return flags[BIT_WORD(hv->evt_conn)] == BIT_MASK(hv->evt_conn) &&  in evt_busy()
237 		hv->hvcall_status == 0 &&  in evt_busy()
238 		atomic_read(&hv->sint_received) == 0;  in evt_busy()