Fri Jun 22 14:15:00 BST 2007 Richard W.M. Jones <rjones@redhat.com>

	* qemud/remote.c, qemud/remote_protocol.x, src/remote_internal.c:
	  Add support for setting scheduler parameters over remote
	  connections.

ChangeLog

+Fri Jun 22 14:15:00 BST 2007 Richard W.M. Jones <rjones@redhat.com>
+
+	* qemud/remote.c, qemud/remote_protocol.x, src/remote_internal.c:
+	  Add support for setting scheduler parameters over remote
+	  connections.
+
 Fri Jun 22 12:40:00 BST 2007 Richard W.M. Jones <rjones@redhat.com>
 
 	* src/internal.h: Added STREQ and STRCASEEQ macros for clearer

qemud/remote.c

@@ -515,6 +515,171 @@ remoteDispatchGetCapabilities (struct qemud_client *client,
     return 0;
 }
 
+static int
+remoteDispatchDomainGetSchedulerType (struct qemud_client *client,
+                                      remote_message_header *req,
+                                      remote_domain_get_scheduler_type_args *args,
+                                      remote_domain_get_scheduler_type_ret *ret)
+{
+    virDomainPtr dom;
+    char *type;
+    int nparams;
+    CHECK_CONN(client);
+
+    dom = get_nonnull_domain (client->conn, args->dom);
+    if (dom == NULL) {
+        remoteDispatchError (client, req, "domain not found");
+        return -2;
+    }
+
+    type = virDomainGetSchedulerType (dom, &nparams);
+    if (type == NULL) return -1;
+
+    ret->type = type;
+    ret->nparams = nparams;
+    return 0;
+}
+
+static int
+remoteDispatchDomainGetSchedulerParameters (struct qemud_client *client,
+                                            remote_message_header *req,
+                                            remote_domain_get_scheduler_parameters_args *args,
+                                            remote_domain_get_scheduler_parameters_ret *ret)
+{
+    virDomainPtr dom;
+    virSchedParameterPtr params;
+    int i, r, nparams;
+    CHECK_CONN(client);
+
+    nparams = args->nparams;
+
+    if (nparams > REMOTE_DOMAIN_SCHEDULER_PARAMETERS_MAX) {
+        remoteDispatchError (client, req, "nparams too large");
+        return -2;
+    }
+    params = malloc (sizeof (virSchedParameter) * nparams);
+    if (params == NULL) {
+        remoteDispatchError (client, req, "out of memory allocating array");
+        return -2;
+    }
+
+    dom = get_nonnull_domain (client->conn, args->dom);
+    if (dom == NULL) {
+        free (params);
+        remoteDispatchError (client, req, "domain not found");
+        return -2;
+    }
+
+    r = virDomainGetSchedulerParameters (dom, params, &nparams);
+    if (r == -1) {
+        free (params);
+        return -1;
+    }
+
+    /* Serialise the scheduler parameters. */
+    ret->params.params_len = nparams;
+    ret->params.params_val = malloc (sizeof (struct remote_sched_param)
+                                     * nparams);
+    if (ret->params.params_val == NULL) {
+        free (params);
+        remoteDispatchError (client, req,
+                             "out of memory allocating return array");
+        return -2;
+    }
+
+    for (i = 0; i < nparams; ++i) {
+        // remoteDispatchClientRequest will free this:
+        ret->params.params_val[i].field = strdup (params[i].field);
+        if (ret->params.params_val[i].field == NULL) {
+            free (params);
+            remoteDispatchError (client, req,
+                                 "out of memory allocating return array");
+            return -2;
+        }
+        ret->params.params_val[i].value.type = params[i].type;
+        switch (params[i].type) {
+        case VIR_DOMAIN_SCHED_FIELD_INT:
+            ret->params.params_val[i].value.remote_sched_param_value_u.i = params[i].value.i; break;
+        case VIR_DOMAIN_SCHED_FIELD_UINT:
+            ret->params.params_val[i].value.remote_sched_param_value_u.ui = params[i].value.ui; break;
+        case VIR_DOMAIN_SCHED_FIELD_LLONG:
+            ret->params.params_val[i].value.remote_sched_param_value_u.l = params[i].value.l; break;
+        case VIR_DOMAIN_SCHED_FIELD_ULLONG:
+            ret->params.params_val[i].value.remote_sched_param_value_u.ul = params[i].value.ul; break;
+        case VIR_DOMAIN_SCHED_FIELD_DOUBLE:
+            ret->params.params_val[i].value.remote_sched_param_value_u.d = params[i].value.d; break;
+        case VIR_DOMAIN_SCHED_FIELD_BOOLEAN:
+            ret->params.params_val[i].value.remote_sched_param_value_u.b = params[i].value.b; break;
+        default:
+            free (params);
+            remoteDispatchError (client, req, "unknown type");
+            return -2;
+        }
+    }
+    free (params);
+
+    return 0;
+}
+
+static int
+remoteDispatchDomainSetSchedulerParameters (struct qemud_client *client,
+                                            remote_message_header *req,
+                                            remote_domain_set_scheduler_parameters_args *args,
+                                            void *ret ATTRIBUTE_UNUSED)
+{
+    virDomainPtr dom;
+    int i, r, nparams;
+    virSchedParameterPtr params;
+    CHECK_CONN(client);
+
+    nparams = args->params.params_len;
+
+    if (nparams > REMOTE_DOMAIN_SCHEDULER_PARAMETERS_MAX) {
+        remoteDispatchError (client, req, "nparams too large");
+        return -2;
+    }
+    params = malloc (sizeof (virSchedParameter) * nparams);
+    if (params == NULL) {
+        remoteDispatchError (client, req, "out of memory allocating array");
+        return -2;
+    }
+
+    /* Deserialise parameters. */
+    for (i = 0; i < nparams; ++i) {
+        strncpy (params[i].field, args->params.params_val[i].field,
+                 VIR_DOMAIN_SCHED_FIELD_LENGTH);
+        params[i].field[VIR_DOMAIN_SCHED_FIELD_LENGTH-1] = '\0';
+        params[i].type = args->params.params_val[i].value.type;
+        switch (params[i].type) {
+        case VIR_DOMAIN_SCHED_FIELD_INT:
+            params[i].value.i = args->params.params_val[i].value.remote_sched_param_value_u.i; break;
+        case VIR_DOMAIN_SCHED_FIELD_UINT:
+            params[i].value.ui = args->params.params_val[i].value.remote_sched_param_value_u.ui; break;
+        case VIR_DOMAIN_SCHED_FIELD_LLONG:
+            params[i].value.l = args->params.params_val[i].value.remote_sched_param_value_u.l; break;
+        case VIR_DOMAIN_SCHED_FIELD_ULLONG:
+            params[i].value.ul = args->params.params_val[i].value.remote_sched_param_value_u.ul; break;
+        case VIR_DOMAIN_SCHED_FIELD_DOUBLE:
+            params[i].value.d = args->params.params_val[i].value.remote_sched_param_value_u.d; break;
+        case VIR_DOMAIN_SCHED_FIELD_BOOLEAN:
+            params[i].value.b = args->params.params_val[i].value.remote_sched_param_value_u.b; break;
+        }
+    }
+
+    dom = get_nonnull_domain (client->conn, args->dom);
+    if (dom == NULL) {
+        free (params);
+        remoteDispatchError (client, req, "domain not found");
+        return -2;
+    }
+
+    r = virDomainSetSchedulerParameters (dom, params, nparams);
+    free (params);
+    if (r == -1) return -1;
+
+    return 0;
+}
+
 static int
 remoteDispatchDomainAttachDevice (struct qemud_client *client,
                                   remote_message_header *req,

qemud/remote_dispatch_localvars.h

@@ -20,6 +20,8 @@ remote_domain_get_os_type_ret lv_remote_domain_get_os_type_ret;
 remote_domain_get_autostart_args lv_remote_domain_get_autostart_args;
 remote_domain_get_autostart_ret lv_remote_domain_get_autostart_ret;
 remote_domain_set_vcpus_args lv_remote_domain_set_vcpus_args;
+remote_domain_get_scheduler_type_args lv_remote_domain_get_scheduler_type_args;
+remote_domain_get_scheduler_type_ret lv_remote_domain_get_scheduler_type_ret;
 remote_network_undefine_args lv_remote_network_undefine_args;
 remote_domain_create_args lv_remote_domain_create_args;
 remote_domain_suspend_args lv_remote_domain_suspend_args;
@@ -52,6 +54,7 @@ remote_domain_reboot_args lv_remote_domain_reboot_args;
 remote_domain_set_memory_args lv_remote_domain_set_memory_args;
 remote_domain_create_linux_args lv_remote_domain_create_linux_args;
 remote_domain_create_linux_ret lv_remote_domain_create_linux_ret;
+remote_domain_set_scheduler_parameters_args lv_remote_domain_set_scheduler_parameters_args;
 remote_domain_attach_device_args lv_remote_domain_attach_device_args;
 remote_domain_lookup_by_id_args lv_remote_domain_lookup_by_id_args;
 remote_domain_lookup_by_id_ret lv_remote_domain_lookup_by_id_ret;
@@ -75,6 +78,8 @@ remote_domain_define_xml_args lv_remote_domain_define_xml_args;
 remote_domain_define_xml_ret lv_remote_domain_define_xml_ret;
 remote_domain_get_vcpus_args lv_remote_domain_get_vcpus_args;
 remote_domain_get_vcpus_ret lv_remote_domain_get_vcpus_ret;
+remote_domain_get_scheduler_parameters_args lv_remote_domain_get_scheduler_parameters_args;
+remote_domain_get_scheduler_parameters_ret lv_remote_domain_get_scheduler_parameters_ret;
 remote_domain_dump_xml_args lv_remote_domain_dump_xml_args;
 remote_domain_dump_xml_ret lv_remote_domain_dump_xml_ret;
 remote_get_max_vcpus_args lv_remote_get_max_vcpus_args;

qemud/remote_dispatch_proc_switch.h

@@ -107,6 +107,24 @@ case REMOTE_PROC_DOMAIN_GET_OS_TYPE:
 	ret = (char *) &lv_remote_domain_get_os_type_ret;
 	memset (&lv_remote_domain_get_os_type_ret, 0, sizeof lv_remote_domain_get_os_type_ret);
 	break;
+case REMOTE_PROC_DOMAIN_GET_SCHEDULER_PARAMETERS:
+	fn = (dispatch_fn) remoteDispatchDomainGetSchedulerParameters;
+	args_filter = (xdrproc_t) xdr_remote_domain_get_scheduler_parameters_args;
+	args = (char *) &lv_remote_domain_get_scheduler_parameters_args;
+	memset (&lv_remote_domain_get_scheduler_parameters_args, 0, sizeof lv_remote_domain_get_scheduler_parameters_args);
+	ret_filter = (xdrproc_t) xdr_remote_domain_get_scheduler_parameters_ret;
+	ret = (char *) &lv_remote_domain_get_scheduler_parameters_ret;
+	memset (&lv_remote_domain_get_scheduler_parameters_ret, 0, sizeof lv_remote_domain_get_scheduler_parameters_ret);
+	break;
+case REMOTE_PROC_DOMAIN_GET_SCHEDULER_TYPE:
+	fn = (dispatch_fn) remoteDispatchDomainGetSchedulerType;
+	args_filter = (xdrproc_t) xdr_remote_domain_get_scheduler_type_args;
+	args = (char *) &lv_remote_domain_get_scheduler_type_args;
+	memset (&lv_remote_domain_get_scheduler_type_args, 0, sizeof lv_remote_domain_get_scheduler_type_args);
+	ret_filter = (xdrproc_t) xdr_remote_domain_get_scheduler_type_ret;
+	ret = (char *) &lv_remote_domain_get_scheduler_type_ret;
+	memset (&lv_remote_domain_get_scheduler_type_ret, 0, sizeof lv_remote_domain_get_scheduler_type_ret);
+	break;
 case REMOTE_PROC_DOMAIN_GET_VCPUS:
 	fn = (dispatch_fn) remoteDispatchDomainGetVcpus;
 	args_filter = (xdrproc_t) xdr_remote_domain_get_vcpus_args;
@@ -191,6 +209,12 @@ case REMOTE_PROC_DOMAIN_SET_MEMORY:
 	args = (char *) &lv_remote_domain_set_memory_args;
 	memset (&lv_remote_domain_set_memory_args, 0, sizeof lv_remote_domain_set_memory_args);
 	break;
+case REMOTE_PROC_DOMAIN_SET_SCHEDULER_PARAMETERS:
+	fn = (dispatch_fn) remoteDispatchDomainSetSchedulerParameters;
+	args_filter = (xdrproc_t) xdr_remote_domain_set_scheduler_parameters_args;
+	args = (char *) &lv_remote_domain_set_scheduler_parameters_args;
+	memset (&lv_remote_domain_set_scheduler_parameters_args, 0, sizeof lv_remote_domain_set_scheduler_parameters_args);
+	break;
 case REMOTE_PROC_DOMAIN_SET_VCPUS:
 	fn = (dispatch_fn) remoteDispatchDomainSetVcpus;
 	args_filter = (xdrproc_t) xdr_remote_domain_set_vcpus_args;

qemud/remote_dispatch_prototypes.h

@@ -16,6 +16,8 @@ static int remoteDispatchDomainGetInfo (struct qemud_client *client, remote_mess
 static int remoteDispatchDomainGetMaxMemory (struct qemud_client *client, remote_message_header *req, remote_domain_get_max_memory_args *args, remote_domain_get_max_memory_ret *ret);
 static int remoteDispatchDomainGetMaxVcpus (struct qemud_client *client, remote_message_header *req, remote_domain_get_max_vcpus_args *args, remote_domain_get_max_vcpus_ret *ret);
 static int remoteDispatchDomainGetOsType (struct qemud_client *client, remote_message_header *req, remote_domain_get_os_type_args *args, remote_domain_get_os_type_ret *ret);
+static int remoteDispatchDomainGetSchedulerParameters (struct qemud_client *client, remote_message_header *req, remote_domain_get_scheduler_parameters_args *args, remote_domain_get_scheduler_parameters_ret *ret);
+static int remoteDispatchDomainGetSchedulerType (struct qemud_client *client, remote_message_header *req, remote_domain_get_scheduler_type_args *args, remote_domain_get_scheduler_type_ret *ret);
 static int remoteDispatchDomainGetVcpus (struct qemud_client *client, remote_message_header *req, remote_domain_get_vcpus_args *args, remote_domain_get_vcpus_ret *ret);
 static int remoteDispatchDomainLookupById (struct qemud_client *client, remote_message_header *req, remote_domain_lookup_by_id_args *args, remote_domain_lookup_by_id_ret *ret);
 static int remoteDispatchDomainLookupByName (struct qemud_client *client, remote_message_header *req, remote_domain_lookup_by_name_args *args, remote_domain_lookup_by_name_ret *ret);
@@ -28,6 +30,7 @@ static int remoteDispatchDomainSave (struct qemud_client *client, remote_message
 static int remoteDispatchDomainSetAutostart (struct qemud_client *client, remote_message_header *req, remote_domain_set_autostart_args *args, void *ret);
 static int remoteDispatchDomainSetMaxMemory (struct qemud_client *client, remote_message_header *req, remote_domain_set_max_memory_args *args, void *ret);
 static int remoteDispatchDomainSetMemory (struct qemud_client *client, remote_message_header *req, remote_domain_set_memory_args *args, void *ret);
+static int remoteDispatchDomainSetSchedulerParameters (struct qemud_client *client, remote_message_header *req, remote_domain_set_scheduler_parameters_args *args, void *ret);
 static int remoteDispatchDomainSetVcpus (struct qemud_client *client, remote_message_header *req, remote_domain_set_vcpus_args *args, void *ret);
 static int remoteDispatchDomainShutdown (struct qemud_client *client, remote_message_header *req, remote_domain_shutdown_args *args, void *ret);
 static int remoteDispatchDomainSuspend (struct qemud_client *client, remote_message_header *req, remote_domain_suspend_args *args, void *ret);

qemud/remote_protocol.c

@@ -119,6 +119,53 @@ xdr_remote_vcpu_info (XDR *xdrs, remote_vcpu_info *objp)
 	return TRUE;
 }
 
+bool_t
+xdr_remote_sched_param_value (XDR *xdrs, remote_sched_param_value *objp)
+{
+
+	 if (!xdr_int (xdrs, &objp->type))
+		 return FALSE;
+	switch (objp->type) {
+	case VIR_DOMAIN_SCHED_FIELD_INT:
+			 return FALSE;
+		break;
+	case VIR_DOMAIN_SCHED_FIELD_UINT:
+		 if (!xdr_u_int (xdrs, &objp->remote_sched_param_value_u.ui))
+			 return FALSE;
+		break;
+	case VIR_DOMAIN_SCHED_FIELD_LLONG:
+		 if (!xdr_quad_t (xdrs, &objp->remote_sched_param_value_u.l))
+			 return FALSE;
+		break;
+	case VIR_DOMAIN_SCHED_FIELD_ULLONG:
+		 if (!xdr_u_quad_t (xdrs, &objp->remote_sched_param_value_u.ul))
+			 return FALSE;
+		break;
+	case VIR_DOMAIN_SCHED_FIELD_DOUBLE:
+		 if (!xdr_double (xdrs, &objp->remote_sched_param_value_u.d))
+			 return FALSE;
+		break;
+	case VIR_DOMAIN_SCHED_FIELD_BOOLEAN:
+		 if (!xdr_int (xdrs, &objp->remote_sched_param_value_u.b))
+			 return FALSE;
+		break;
+	default:
+		return FALSE;
+	}
+	return TRUE;
+}
+
+bool_t
+xdr_remote_sched_param (XDR *xdrs, remote_sched_param *objp)
+{
+
+	 if (!xdr_remote_nonnull_string (xdrs, &objp->field))
+		 return FALSE;
+	 if (!xdr_remote_sched_param_value (xdrs, &objp->value))
+		 return FALSE;
+	return TRUE;
+}
+
 bool_t
 xdr_remote_open_args (XDR *xdrs, remote_open_args *objp)
 {
@@ -261,6 +308,61 @@ xdr_remote_get_capabilities_ret (XDR *xdrs, remote_get_capabilities_ret *objp)
 	return TRUE;
 }
 
+bool_t
+xdr_remote_domain_get_scheduler_type_args (XDR *xdrs, remote_domain_get_scheduler_type_args *objp)
+{
+
+	 if (!xdr_remote_nonnull_domain (xdrs, &objp->dom))
+		 return FALSE;
+	return TRUE;
+}
+
+bool_t
+xdr_remote_domain_get_scheduler_type_ret (XDR *xdrs, remote_domain_get_scheduler_type_ret *objp)
+{
+
+	 if (!xdr_remote_nonnull_string (xdrs, &objp->type))
+		 return FALSE;
+	 if (!xdr_int (xdrs, &objp->nparams))
+		 return FALSE;
+	return TRUE;
+}
+
+bool_t
+xdr_remote_domain_get_scheduler_parameters_args (XDR *xdrs, remote_domain_get_scheduler_parameters_args *objp)
+{
+
+	 if (!xdr_remote_nonnull_domain (xdrs, &objp->dom))
+		 return FALSE;
+	 if (!xdr_int (xdrs, &objp->nparams))
+		 return FALSE;
+	return TRUE;
+}
+
+bool_t
+xdr_remote_domain_get_scheduler_parameters_ret (XDR *xdrs, remote_domain_get_scheduler_parameters_ret *objp)
+{
+	char **objp_cpp0 = (char **) (void *) &objp->params.params_val;
+
+	 if (!xdr_array (xdrs, objp_cpp0, (u_int *) &objp->params.params_len, REMOTE_DOMAIN_SCHEDULER_PARAMETERS_MAX,
+		sizeof (remote_sched_param), (xdrproc_t) xdr_remote_sched_param))
+		 return FALSE;
+	return TRUE;
+}
+
+bool_t
+xdr_remote_domain_set_scheduler_parameters_args (XDR *xdrs, remote_domain_set_scheduler_parameters_args *objp)
+{
+	char **objp_cpp0 = (char **) (void *) &objp->params.params_val;
+
+	 if (!xdr_remote_nonnull_domain (xdrs, &objp->dom))
+		 return FALSE;
+	 if (!xdr_array (xdrs, objp_cpp0, (u_int *) &objp->params.params_len, REMOTE_DOMAIN_SCHEDULER_PARAMETERS_MAX,
+		sizeof (remote_sched_param), (xdrproc_t) xdr_remote_sched_param))
+		 return FALSE;
+	return TRUE;
+}
+
 bool_t
 xdr_remote_list_domains_args (XDR *xdrs, remote_list_domains_args *objp)
 {

qemud/remote_protocol.h

@@ -26,6 +26,7 @@ typedef remote_nonnull_string *remote_string;
 #define REMOTE_VCPUINFO_MAX 2048
 #define REMOTE_CPUMAPS_MAX 16384
 #define REMOTE_NETWORK_NAME_LIST_MAX 256
+#define REMOTE_DOMAIN_SCHEDULER_PARAMETERS_MAX 16
 
 typedef char remote_uuid[VIR_UUID_BUFLEN];
 
@@ -69,6 +70,25 @@ struct remote_vcpu_info {
 };
 typedef struct remote_vcpu_info remote_vcpu_info;
 
+struct remote_sched_param_value {
+	int type;
+	union {
+		int i;
+		u_int ui;
+		quad_t l;
+		u_quad_t ul;
+		double d;
+		int b;
+	} remote_sched_param_value_u;
+};
+typedef struct remote_sched_param_value remote_sched_param_value;
+
+struct remote_sched_param {
+	remote_nonnull_string field;
+	remote_sched_param_value value;
+};
+typedef struct remote_sched_param remote_sched_param;
+
 struct remote_open_args {
 	remote_string name;
 	int flags;
@@ -112,6 +132,40 @@ struct remote_get_capabilities_ret {
 };
 typedef struct remote_get_capabilities_ret remote_get_capabilities_ret;
 
+struct remote_domain_get_scheduler_type_args {
+	remote_nonnull_domain dom;
+};
+typedef struct remote_domain_get_scheduler_type_args remote_domain_get_scheduler_type_args;
+
+struct remote_domain_get_scheduler_type_ret {
+	remote_nonnull_string type;
+	int nparams;
+};
+typedef struct remote_domain_get_scheduler_type_ret remote_domain_get_scheduler_type_ret;
+
+struct remote_domain_get_scheduler_parameters_args {
+	remote_nonnull_domain dom;
+	int nparams;
+};
+typedef struct remote_domain_get_scheduler_parameters_args remote_domain_get_scheduler_parameters_args;
+
+struct remote_domain_get_scheduler_parameters_ret {
+	struct {
+		u_int params_len;
+		remote_sched_param *params_val;
+	} params;
+};
+typedef struct remote_domain_get_scheduler_parameters_ret remote_domain_get_scheduler_parameters_ret;
+
+struct remote_domain_set_scheduler_parameters_args {
+	remote_nonnull_domain dom;
+	struct {
+		u_int params_len;
+		remote_sched_param *params_val;
+	} params;
+};
+typedef struct remote_domain_set_scheduler_parameters_args remote_domain_set_scheduler_parameters_args;
+
 struct remote_list_domains_args {
 	int maxids;
 };
@@ -569,6 +623,9 @@ enum remote_procedure {
 	REMOTE_PROC_DOMAIN_CORE_DUMP = 53,
 	REMOTE_PROC_DOMAIN_RESTORE = 54,
 	REMOTE_PROC_DOMAIN_SAVE = 55,
+	REMOTE_PROC_DOMAIN_GET_SCHEDULER_TYPE = 56,
+	REMOTE_PROC_DOMAIN_GET_SCHEDULER_PARAMETERS = 57,
+	REMOTE_PROC_DOMAIN_SET_SCHEDULER_PARAMETERS = 58,
 };
 typedef enum remote_procedure remote_procedure;
 
@@ -607,6 +664,8 @@ extern  bool_t xdr_remote_domain (XDR *, remote_domain*);
 extern  bool_t xdr_remote_network (XDR *, remote_network*);
 extern  bool_t xdr_remote_error (XDR *, remote_error*);
 extern  bool_t xdr_remote_vcpu_info (XDR *, remote_vcpu_info*);
+extern  bool_t xdr_remote_sched_param_value (XDR *, remote_sched_param_value*);
+extern  bool_t xdr_remote_sched_param (XDR *, remote_sched_param*);
 extern  bool_t xdr_remote_open_args (XDR *, remote_open_args*);
 extern  bool_t xdr_remote_get_type_ret (XDR *, remote_get_type_ret*);
 extern  bool_t xdr_remote_get_version_ret (XDR *, remote_get_version_ret*);
@@ -614,6 +673,11 @@ extern  bool_t xdr_remote_get_max_vcpus_args (XDR *, remote_get_max_vcpus_args*)
 extern  bool_t xdr_remote_get_max_vcpus_ret (XDR *, remote_get_max_vcpus_ret*);
 extern  bool_t xdr_remote_node_get_info_ret (XDR *, remote_node_get_info_ret*);
 extern  bool_t xdr_remote_get_capabilities_ret (XDR *, remote_get_capabilities_ret*);
+extern  bool_t xdr_remote_domain_get_scheduler_type_args (XDR *, remote_domain_get_scheduler_type_args*);
+extern  bool_t xdr_remote_domain_get_scheduler_type_ret (XDR *, remote_domain_get_scheduler_type_ret*);
+extern  bool_t xdr_remote_domain_get_scheduler_parameters_args (XDR *, remote_domain_get_scheduler_parameters_args*);
+extern  bool_t xdr_remote_domain_get_scheduler_parameters_ret (XDR *, remote_domain_get_scheduler_parameters_ret*);
+extern  bool_t xdr_remote_domain_set_scheduler_parameters_args (XDR *, remote_domain_set_scheduler_parameters_args*);
 extern  bool_t xdr_remote_list_domains_args (XDR *, remote_list_domains_args*);
 extern  bool_t xdr_remote_list_domains_ret (XDR *, remote_list_domains_ret*);
 extern  bool_t xdr_remote_num_of_domains_ret (XDR *, remote_num_of_domains_ret*);
@@ -700,6 +764,8 @@ extern bool_t xdr_remote_domain ();
 extern bool_t xdr_remote_network ();
 extern bool_t xdr_remote_error ();
 extern bool_t xdr_remote_vcpu_info ();
+extern bool_t xdr_remote_sched_param_value ();
+extern bool_t xdr_remote_sched_param ();
 extern bool_t xdr_remote_open_args ();
 extern bool_t xdr_remote_get_type_ret ();
 extern bool_t xdr_remote_get_version_ret ();
@@ -707,6 +773,11 @@ extern bool_t xdr_remote_get_max_vcpus_args ();
 extern bool_t xdr_remote_get_max_vcpus_ret ();
 extern bool_t xdr_remote_node_get_info_ret ();
 extern bool_t xdr_remote_get_capabilities_ret ();
+extern bool_t xdr_remote_domain_get_scheduler_type_args ();
+extern bool_t xdr_remote_domain_get_scheduler_type_ret ();
+extern bool_t xdr_remote_domain_get_scheduler_parameters_args ();
+extern bool_t xdr_remote_domain_get_scheduler_parameters_ret ();
+extern bool_t xdr_remote_domain_set_scheduler_parameters_args ();
 extern bool_t xdr_remote_list_domains_args ();
 extern bool_t xdr_remote_list_domains_ret ();
 extern bool_t xdr_remote_num_of_domains_ret ();

qemud/remote_protocol.x

@@ -75,6 +75,9 @@ const REMOTE_CPUMAPS_MAX = 16384;
 /* Upper limit on lists of network names. */
 const REMOTE_NETWORK_NAME_LIST_MAX = 256;
 
+/* Upper limit on list of scheduler parameters. */
+const REMOTE_DOMAIN_SCHEDULER_PARAMETERS_MAX = 16;
+
 /* UUID.  VIR_UUID_BUFLEN definition comes from libvirt.h */
 typedef opaque remote_uuid[VIR_UUID_BUFLEN];
 
@@ -125,6 +128,29 @@ struct remote_vcpu_info {
     int cpu;
 };
 
+/* Wire encoding of virDomainSchedParameter.
+ * Note the enum (type) which must remain binary compatible.
+ */
+union remote_sched_param_value switch (int type) {
+ case VIR_DOMAIN_SCHED_FIELD_INT:
+     int i;
+ case VIR_DOMAIN_SCHED_FIELD_UINT:
+     unsigned int ui;
+ case VIR_DOMAIN_SCHED_FIELD_LLONG:
+     hyper l;
+ case VIR_DOMAIN_SCHED_FIELD_ULLONG:
+     unsigned hyper ul;
+ case VIR_DOMAIN_SCHED_FIELD_DOUBLE:
+     double d;
+ case VIR_DOMAIN_SCHED_FIELD_BOOLEAN:
+     int b;
+};
+
+struct remote_sched_param {
+    remote_nonnull_string field;
+    remote_sched_param_value value;
+};
+
 /*----- Calls. -----*/
 
 /* For each call we may have a 'remote_CALL_args' and 'remote_CALL_ret'
@@ -178,6 +204,29 @@ struct remote_get_capabilities_ret {
     remote_nonnull_string capabilities;
 };
 
+struct remote_domain_get_scheduler_type_args {
+    remote_nonnull_domain dom;
+};
+
+struct remote_domain_get_scheduler_type_ret {
+    remote_nonnull_string type;
+    int nparams;
+};
+
+struct remote_domain_get_scheduler_parameters_args {
+    remote_nonnull_domain dom;
+    int nparams;
+};
+
+struct remote_domain_get_scheduler_parameters_ret {
+    remote_sched_param params<REMOTE_DOMAIN_SCHEDULER_PARAMETERS_MAX>;
+};
+
+struct remote_domain_set_scheduler_parameters_args {
+    remote_nonnull_domain dom;
+    remote_sched_param params<REMOTE_DOMAIN_SCHEDULER_PARAMETERS_MAX>;
+};
+
 struct remote_list_domains_args {
     int maxids;
 };
@@ -553,7 +602,10 @@ enum remote_procedure {
     REMOTE_PROC_NUM_OF_NETWORKS = 52,
     REMOTE_PROC_DOMAIN_CORE_DUMP = 53,
     REMOTE_PROC_DOMAIN_RESTORE = 54,
-    REMOTE_PROC_DOMAIN_SAVE = 55
+    REMOTE_PROC_DOMAIN_SAVE = 55,
+    REMOTE_PROC_DOMAIN_GET_SCHEDULER_TYPE = 56,
+    REMOTE_PROC_DOMAIN_GET_SCHEDULER_PARAMETERS = 57,
+    REMOTE_PROC_DOMAIN_SET_SCHEDULER_PARAMETERS = 58
 };
 
 /* Custom RPC structure. */

src/remote_internal.c

@@ -1731,6 +1731,144 @@ remoteDomainSetAutostart (virDomainPtr domain, int autostart)
     return 0;
 }
 
+static char *
+remoteDomainGetSchedulerType (virDomainPtr domain, int *nparams)
+{
+    remote_domain_get_scheduler_type_args args;
+    remote_domain_get_scheduler_type_ret ret;
+    GET_PRIVATE (domain->conn, NULL);
+
+    make_nonnull_domain (&args.dom, domain);
+
+    memset (&ret, 0, sizeof ret);
+    if (call (domain->conn, priv, 0, REMOTE_PROC_DOMAIN_GET_SCHEDULER_TYPE,
+              (xdrproc_t) xdr_remote_domain_get_scheduler_type_args, (char *) &args,
+              (xdrproc_t) xdr_remote_domain_get_scheduler_type_ret, (char *) &ret) == -1)
+        return NULL;
+
+    if (nparams) *nparams = ret.nparams;
+
+    /* Caller frees this. */
+    return ret.type;
+}
+
+static int
+remoteDomainGetSchedulerParameters (virDomainPtr domain,
+                                    virSchedParameterPtr params, int *nparams)
+{
+    remote_domain_get_scheduler_parameters_args args;
+    remote_domain_get_scheduler_parameters_ret ret;
+    int i;
+    GET_PRIVATE (domain->conn, -1);
+
+    make_nonnull_domain (&args.dom, domain);
+    args.nparams = *nparams;
+
+    memset (&ret, 0, sizeof ret);
+    if (call (domain->conn, priv, 0, REMOTE_PROC_DOMAIN_GET_SCHEDULER_PARAMETERS,
+              (xdrproc_t) xdr_remote_domain_get_scheduler_parameters_args, (char *) &args,
+              (xdrproc_t) xdr_remote_domain_get_scheduler_parameters_ret, (char *) &ret) == -1)
+        return -1;
+
+    /* Check the length of the returned list carefully. */
+    if (ret.params.params_len > REMOTE_DOMAIN_SCHEDULER_PARAMETERS_MAX ||
+        ret.params.params_len > *nparams) {
+        xdr_free ((xdrproc_t) xdr_remote_domain_get_scheduler_parameters_ret, (char *) &ret);
+        error (domain->conn, VIR_ERR_RPC, "remoteDomainGetSchedulerParameters: returned number of parameters exceeds limit");
+        return -1;
+    }
+    *nparams = ret.params.params_len;
+
+    /* Deserialise the result. */
+    for (i = 0; i < *nparams; ++i) {
+        strncpy (params[i].field, ret.params.params_val[i].field,
+                 VIR_DOMAIN_SCHED_FIELD_LENGTH);
+        params[i].field[VIR_DOMAIN_SCHED_FIELD_LENGTH-1] = '\0';
+        params[i].type = ret.params.params_val[i].value.type;
+        switch (params[i].type) {
+        case VIR_DOMAIN_SCHED_FIELD_INT:
+            params[i].value.i = ret.params.params_val[i].value.remote_sched_param_value_u.i; break;
+        case VIR_DOMAIN_SCHED_FIELD_UINT:
+            params[i].value.ui = ret.params.params_val[i].value.remote_sched_param_value_u.ui; break;
+        case VIR_DOMAIN_SCHED_FIELD_LLONG:
+            params[i].value.l = ret.params.params_val[i].value.remote_sched_param_value_u.l; break;
+        case VIR_DOMAIN_SCHED_FIELD_ULLONG:
+            params[i].value.ul = ret.params.params_val[i].value.remote_sched_param_value_u.ul; break;
+        case VIR_DOMAIN_SCHED_FIELD_DOUBLE:
+            params[i].value.d = ret.params.params_val[i].value.remote_sched_param_value_u.d; break;
+        case VIR_DOMAIN_SCHED_FIELD_BOOLEAN:
+            params[i].value.b = ret.params.params_val[i].value.remote_sched_param_value_u.b; break;
+        default:
+            xdr_free ((xdrproc_t) xdr_remote_domain_get_scheduler_parameters_ret, (char *) &ret);
+            error (domain->conn, VIR_ERR_RPC, "remoteDomainGetSchedulerParameters: unknown parameter type");
+            return -1;
+        }
+    }
+
+    xdr_free ((xdrproc_t) xdr_remote_domain_get_scheduler_parameters_ret, (char *) &ret);
+    return 0;
+}
+
+static int
+remoteDomainSetSchedulerParameters (virDomainPtr domain,
+                                    virSchedParameterPtr params, int nparams)
+{
+    remote_domain_set_scheduler_parameters_args args;
+    int i, do_error;
+    GET_PRIVATE (domain->conn, -1);
+
+    make_nonnull_domain (&args.dom, domain);
+
+    /* Serialise the scheduler parameters. */
+    args.params.params_len = nparams;
+    args.params.params_val = malloc (sizeof (struct remote_sched_param)
+                                     * nparams);
+    if (args.params.params_val == NULL) {
+        error (domain->conn, VIR_ERR_RPC, "out of memory allocating array");
+        return -1;
+    }
+
+    do_error = 0;
+    for (i = 0; i < nparams; ++i) {
+        // call() will free this:
+        args.params.params_val[i].field = strdup (params[i].field);
+        if (args.params.params_val[i].field == NULL) {
+            error (domain->conn, VIR_ERR_NO_MEMORY, "out of memory");
+            do_error = 1;
+        }
+        args.params.params_val[i].value.type = params[i].type;
+        switch (params[i].type) {
+        case VIR_DOMAIN_SCHED_FIELD_INT:
+            args.params.params_val[i].value.remote_sched_param_value_u.i = params[i].value.i; break;
+        case VIR_DOMAIN_SCHED_FIELD_UINT:
+            args.params.params_val[i].value.remote_sched_param_value_u.ui = params[i].value.ui; break;
+        case VIR_DOMAIN_SCHED_FIELD_LLONG:
+            args.params.params_val[i].value.remote_sched_param_value_u.l = params[i].value.l; break;
+        case VIR_DOMAIN_SCHED_FIELD_ULLONG:
+            args.params.params_val[i].value.remote_sched_param_value_u.ul = params[i].value.ul; break;
+        case VIR_DOMAIN_SCHED_FIELD_DOUBLE:
+            args.params.params_val[i].value.remote_sched_param_value_u.d = params[i].value.d; break;
+        case VIR_DOMAIN_SCHED_FIELD_BOOLEAN:
+            args.params.params_val[i].value.remote_sched_param_value_u.b = params[i].value.b; break;
+        default:
+            error (domain->conn, VIR_ERR_RPC, "unknown parameter type");
+            do_error = 1;
+        }
+    }
+
+    if (do_error) {
+        xdr_free ((xdrproc_t) xdr_remote_domain_set_scheduler_parameters_args, (char *) &args);
+        return -1;
+    }
+
+    if (call (domain->conn, priv, 0, REMOTE_PROC_DOMAIN_SET_SCHEDULER_PARAMETERS,
+              (xdrproc_t) xdr_remote_domain_set_scheduler_parameters_args, (char *) &args,
+              (xdrproc_t) xdr_void, (char *) NULL) == -1)
+        return -1;
+
+    return 0;
+}
+
 /*----------------------------------------------------------------------*/
 
 static int
@@ -2499,6 +2637,9 @@ static virDriver driver = {
     .domainDetachDevice = remoteDomainDetachDevice,
     .domainGetAutostart = remoteDomainGetAutostart,
     .domainSetAutostart = remoteDomainSetAutostart,
+    .domainGetSchedulerType = remoteDomainGetSchedulerType,
+    .domainGetSchedulerParameters = remoteDomainGetSchedulerParameters,
+    .domainSetSchedulerParameters = remoteDomainSetSchedulerParameters,
 };
 
 static virNetworkDriver network_driver = {