xen: change HVM functions signature to run it for other domains

This commit adds possibility to call hypervisor HVM parameter functions
for specified domain (instead of only DOMID_SELF). It is needed for
configuring domains, that were created from Zephyr control domain.

Signed-off-by: Dmytro Firsov <[email protected]>

Author: firscity

drivers/serial/uart_hvc_xen.c

@@ -233,14 +233,14 @@ int xen_console_init(const struct device *dev)
 
 	data->dev = dev;
 
-	ret = hvm_get_parameter(HVM_PARAM_CONSOLE_EVTCHN, &data->evtchn);
+	ret = hvm_get_parameter(HVM_PARAM_CONSOLE_EVTCHN, DOMID_SELF, &data->evtchn);
 	if (ret) {
 		LOG_ERR("%s: failed to get Xen console evtchn, ret = %d\n",
 				__func__, ret);
 		return ret;
 	}
 
-	ret = hvm_get_parameter(HVM_PARAM_CONSOLE_PFN, &console_pfn);
+	ret = hvm_get_parameter(HVM_PARAM_CONSOLE_PFN, DOMID_SELF, &console_pfn);
 	if (ret) {
 		LOG_ERR("%s: failed to get Xen console PFN, ret = %d\n",
 				__func__, ret);

drivers/xen/hvm.c

@@ -11,23 +11,23 @@
 
 #include <zephyr/kernel.h>
 
-int hvm_set_parameter(int idx, uint64_t value)
+int hvm_set_parameter(int idx, int domid, uint64_t value)
 {
 	struct xen_hvm_param xhv;
 
-	xhv.domid = DOMID_SELF;
+	xhv.domid = domid;
 	xhv.index = idx;
 	xhv.value = value;
 
 	return HYPERVISOR_hvm_op(HVMOP_set_param, &xhv);
 }
 
-int hvm_get_parameter(int idx, uint64_t *value)
+int hvm_get_parameter(int idx, int domid, uint64_t *value)
 {
 	int ret = 0;
 	struct xen_hvm_param xhv;
 
-	xhv.domid = DOMID_SELF;
+	xhv.domid = domid;
 	xhv.index = idx;
 
 	ret = HYPERVISOR_hvm_op(HVMOP_get_param, &xhv);

include/zephyr/xen/hvm.h

@@ -11,7 +11,7 @@
 
 #include <zephyr/kernel.h>
 
-int hvm_set_parameter(int idx, uint64_t value);
-int hvm_get_parameter(int idx, uint64_t *value);
+int hvm_set_parameter(int idx, int domid, uint64_t value);
+int hvm_get_parameter(int idx, int domid, uint64_t *value);
 
 #endif /* __XEN_HVM_H__ */