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[libvirt] [PATCH v4 13/13] Remote protocol changes and implements virDomainSet/GetMemoryParameters



From: Nikunj A. Dadhania <nikunj linux vnet ibm com>

v4:
* prototype change: add unsigned int flags, regenerate files

v3:
* Squased all the remote driver changes to one single big patch and
  auto-generated is around 40%
* Implements domainSetMemoryParameters and domainGetMemoryParameters for remote
  driver
	daemon/remote.c
	src/remote/remote_driver.c

* Auto generate the files using rpcgen and helper scripts in daemon/ directory
	src/remote/remote_protocol.x
	daemon/remote_dispatch_args.h
	daemon/remote_dispatch_prototypes.h
	daemon/remote_dispatch_ret.h
	daemon/remote_dispatch_table.h
	src/remote/remote_protocol.c
	src/remote/remote_protocol.h

Acked-by: "Daniel P. Berrange" <berrange redhat com>
Signed-off-by: Nikunj A. Dadhania <nikunj linux vnet ibm com>
---
 daemon/remote.c                     |  162 +++++++++++++++++++++++++++++++++++
 daemon/remote_dispatch_args.h       |    2 
 daemon/remote_dispatch_prototypes.h |   16 +++
 daemon/remote_dispatch_ret.h        |    1 
 daemon/remote_dispatch_table.h      |   10 ++
 src/remote/remote_driver.c          |  153 +++++++++++++++++++++++++++++++++
 src/remote/remote_protocol.c        |   88 +++++++++++++++++++
 src/remote/remote_protocol.h        |   58 +++++++++++++
 src/remote/remote_protocol.x        |   44 +++++++++-
 9 files changed, 531 insertions(+), 3 deletions(-)

diff --git a/daemon/remote.c b/daemon/remote.c
index 6b67678..d5a8a9c 100644
--- a/daemon/remote.c
+++ b/daemon/remote.c
@@ -2332,6 +2332,168 @@ remoteDispatchDomainSetMemory (struct qemud_server *server ATTRIBUTE_UNUSED,
 }
 
 static int
+remoteDispatchDomainSetMemoryParameters (struct qemud_server *server ATTRIBUTE_UNUSED,
+                                         struct qemud_client *client ATTRIBUTE_UNUSED,
+                                         virConnectPtr conn,
+                                         remote_message_header *hdr ATTRIBUTE_UNUSED,
+                                         remote_error *rerr,
+                                         remote_domain_set_memory_parameters_args *args,
+                                         void *ret ATTRIBUTE_UNUSED)
+{
+    virDomainPtr dom;
+    int i, r, nparams;
+    virMemoryParameterPtr params;
+    unsigned int flags;
+
+    nparams = args->params.params_len;
+    nparams = args->flags;
+
+    if (nparams > REMOTE_DOMAIN_MEMORY_PARAMETERS_MAX) {
+        remoteDispatchFormatError (rerr, "%s", _("nparams too large"));
+        return -1;
+    }
+    if (VIR_ALLOC_N(params, nparams) < 0) {
+        remoteDispatchOOMError(rerr);
+        return -1;
+    }
+
+    /* Deserialise parameters. */
+    for (i = 0; i < nparams; ++i) {
+        if (virStrcpyStatic(params[i].field, args->params.params_val[i].field) == NULL) {
+            remoteDispatchFormatError(rerr, _("Field %s too big for destination"),
+                                      args->params.params_val[i].field);
+            return -1;
+        }
+        params[i].type = args->params.params_val[i].value.type;
+        switch (params[i].type) {
+        case VIR_DOMAIN_MEMORY_FIELD_INT:
+            params[i].value.i = args->params.params_val[i].value.remote_memory_param_value_u.i; break;
+        case VIR_DOMAIN_MEMORY_FIELD_UINT:
+            params[i].value.ui = args->params.params_val[i].value.remote_memory_param_value_u.ui; break;
+        case VIR_DOMAIN_MEMORY_FIELD_LLONG:
+            params[i].value.l = args->params.params_val[i].value.remote_memory_param_value_u.l; break;
+        case VIR_DOMAIN_MEMORY_FIELD_ULLONG:
+            params[i].value.ul = args->params.params_val[i].value.remote_memory_param_value_u.ul; break;
+        case VIR_DOMAIN_MEMORY_FIELD_DOUBLE:
+            params[i].value.d = args->params.params_val[i].value.remote_memory_param_value_u.d; break;
+        case VIR_DOMAIN_MEMORY_FIELD_BOOLEAN:
+            params[i].value.b = args->params.params_val[i].value.remote_memory_param_value_u.b; break;
+        }
+    }
+
+    dom = get_nonnull_domain (conn, args->dom);
+    if (dom == NULL) {
+        VIR_FREE(params);
+        remoteDispatchConnError(rerr, conn);
+        return -1;
+    }
+
+    r = virDomainSetMemoryParameters (dom, params, nparams, flags);
+    virDomainFree(dom);
+    VIR_FREE(params);
+    if (r == -1) {
+        remoteDispatchConnError(rerr, conn);
+        return -1;
+    }
+
+    return 0;
+}
+
+static int remoteDispatchDomainGetMemoryParameters (struct qemud_server *server,
+                                                    struct qemud_client *client,
+                                                    virConnectPtr conn,
+                                                    remote_message_header *hdr,
+                                                    remote_error *rerr,
+                                                    remote_domain_get_memory_parameters_args *args,
+                                                    remote_domain_get_memory_parameters_ret *ret)
+{
+    virDomainPtr dom;
+    virMemoryParameterPtr params;
+    int i, r, nparams;
+    unsigned int flags;
+
+    nparams = args->nparams;
+    flags = args->flags;
+
+    if (nparams > REMOTE_DOMAIN_MEMORY_PARAMETERS_MAX) {
+        remoteDispatchFormatError (rerr, "%s", _("nparams too large"));
+        return -1;
+    }
+    if (VIR_ALLOC_N(params, nparams) < 0) {
+        remoteDispatchOOMError(rerr);
+        return -1;
+    }
+
+    dom = get_nonnull_domain (conn, args->dom);
+    if (dom == NULL) {
+        VIR_FREE(params);
+        remoteDispatchConnError(rerr, conn);
+        return -1;
+    }
+
+    r = virDomainGetMemoryParameters (dom, params, &nparams, flags);
+    if (r == -1) {
+        virDomainFree(dom);
+        VIR_FREE(params);
+        remoteDispatchConnError(rerr, conn);
+        return -1;
+    }
+    /* In this case, we need to send back the number of parameters
+     * supported 
+     */
+    if (args->nparams == 0) {
+        ret->nparams = nparams;
+        goto success;
+    }
+
+    /* Serialise the memory parameters. */
+    ret->params.params_len = nparams;
+    if (VIR_ALLOC_N(ret->params.params_val, nparams) < 0)
+        goto oom;
+
+    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)
+            goto oom;
+
+        ret->params.params_val[i].value.type = params[i].type;
+        switch (params[i].type) {
+        case VIR_DOMAIN_MEMORY_FIELD_INT:            
+            ret->params.params_val[i].value.remote_memory_param_value_u.i = params[i].value.i; break;
+        case VIR_DOMAIN_MEMORY_FIELD_UINT:           
+            ret->params.params_val[i].value.remote_memory_param_value_u.ui = params[i].value.ui; break;
+        case VIR_DOMAIN_MEMORY_FIELD_LLONG:          
+            ret->params.params_val[i].value.remote_memory_param_value_u.l = params[i].value.l; break;
+        case VIR_DOMAIN_MEMORY_FIELD_ULLONG:         
+            ret->params.params_val[i].value.remote_memory_param_value_u.ul = params[i].value.ul; break;
+        case VIR_DOMAIN_MEMORY_FIELD_DOUBLE:         
+            ret->params.params_val[i].value.remote_memory_param_value_u.d = params[i].value.d; break;
+        case VIR_DOMAIN_MEMORY_FIELD_BOOLEAN:        
+            ret->params.params_val[i].value.remote_memory_param_value_u.b = params[i].value.b; break;
+        default:
+            remoteDispatchFormatError (rerr, "%s", _("unknown type"));
+            goto cleanup;
+        }
+    }
+
+success:
+    virDomainFree(dom);
+    VIR_FREE(params);
+
+    return 0;
+
+oom:
+    remoteDispatchOOMError(rerr);
+cleanup:
+    virDomainFree(dom);
+    for (i = 0 ; i < nparams ; i++)
+        VIR_FREE(ret->params.params_val[i].field);
+    VIR_FREE(params);
+    return -1;
+}
+
+static int
 remoteDispatchDomainSetVcpus (struct qemud_server *server ATTRIBUTE_UNUSED,
                               struct qemud_client *client ATTRIBUTE_UNUSED,
                               virConnectPtr conn,
diff --git a/daemon/remote_dispatch_args.h b/daemon/remote_dispatch_args.h
index ee95043..d8528b6 100644
--- a/daemon/remote_dispatch_args.h
+++ b/daemon/remote_dispatch_args.h
@@ -165,3 +165,5 @@
     remote_domain_snapshot_delete_args val_remote_domain_snapshot_delete_args;
     remote_domain_get_block_info_args val_remote_domain_get_block_info_args;
     remote_domain_create_with_flags_args val_remote_domain_create_with_flags_args;
+    remote_domain_set_memory_parameters_args val_remote_domain_set_memory_parameters_args;
+    remote_domain_get_memory_parameters_args val_remote_domain_get_memory_parameters_args;
diff --git a/daemon/remote_dispatch_prototypes.h b/daemon/remote_dispatch_prototypes.h
index cf1a0f9..b674bb4 100644
--- a/daemon/remote_dispatch_prototypes.h
+++ b/daemon/remote_dispatch_prototypes.h
@@ -258,6 +258,14 @@ static int remoteDispatchDomainGetMaxVcpus(
     remote_error *err,
     remote_domain_get_max_vcpus_args *args,
     remote_domain_get_max_vcpus_ret *ret);
+static int remoteDispatchDomainGetMemoryParameters(
+    struct qemud_server *server,
+    struct qemud_client *client,
+    virConnectPtr conn,
+    remote_message_header *hdr,
+    remote_error *err,
+    remote_domain_get_memory_parameters_args *args,
+    remote_domain_get_memory_parameters_ret *ret);
 static int remoteDispatchDomainGetOsType(
     struct qemud_server *server,
     struct qemud_client *client,
@@ -522,6 +530,14 @@ static int remoteDispatchDomainSetMemory(
     remote_error *err,
     remote_domain_set_memory_args *args,
     void *ret);
+static int remoteDispatchDomainSetMemoryParameters(
+    struct qemud_server *server,
+    struct qemud_client *client,
+    virConnectPtr conn,
+    remote_message_header *hdr,
+    remote_error *err,
+    remote_domain_set_memory_parameters_args *args,
+    void *ret);
 static int remoteDispatchDomainSetSchedulerParameters(
     struct qemud_server *server,
     struct qemud_client *client,
diff --git a/daemon/remote_dispatch_ret.h b/daemon/remote_dispatch_ret.h
index 75ac0b2..17c9bca 100644
--- a/daemon/remote_dispatch_ret.h
+++ b/daemon/remote_dispatch_ret.h
@@ -135,3 +135,4 @@
     remote_domain_snapshot_current_ret val_remote_domain_snapshot_current_ret;
     remote_domain_get_block_info_ret val_remote_domain_get_block_info_ret;
     remote_domain_create_with_flags_ret val_remote_domain_create_with_flags_ret;
+    remote_domain_get_memory_parameters_ret val_remote_domain_get_memory_parameters_ret;
diff --git a/daemon/remote_dispatch_table.h b/daemon/remote_dispatch_table.h
index ef00edd..47d95eb 100644
--- a/daemon/remote_dispatch_table.h
+++ b/daemon/remote_dispatch_table.h
@@ -987,3 +987,13 @@
     .args_filter = (xdrproc_t) xdr_remote_domain_create_with_flags_args,
     .ret_filter = (xdrproc_t) xdr_remote_domain_create_with_flags_ret,
 },
+{   /* DomainSetMemoryParameters => 197 */
+    .fn = (dispatch_fn) remoteDispatchDomainSetMemoryParameters,
+    .args_filter = (xdrproc_t) xdr_remote_domain_set_memory_parameters_args,
+    .ret_filter = (xdrproc_t) xdr_void,
+},
+{   /* DomainGetMemoryParameters => 198 */
+    .fn = (dispatch_fn) remoteDispatchDomainGetMemoryParameters,
+    .args_filter = (xdrproc_t) xdr_remote_domain_get_memory_parameters_args,
+    .ret_filter = (xdrproc_t) xdr_remote_domain_get_memory_parameters_ret,
+},
diff --git a/src/remote/remote_driver.c b/src/remote/remote_driver.c
index 7337cad..abb95fa 100644
--- a/src/remote/remote_driver.c
+++ b/src/remote/remote_driver.c
@@ -2284,6 +2284,155 @@ done:
 }
 
 static int
+remoteDomainSetMemoryParameters (virDomainPtr domain,
+                                 virMemoryParameterPtr params, 
+                                 int nparams,
+                                 unsigned int flags)
+{
+    int rv = -1;
+    remote_domain_set_memory_parameters_args args;
+    int i, do_error;
+    struct private_data *priv = domain->conn->privateData;
+
+    remoteDriverLock(priv);
+
+    make_nonnull_domain (&args.dom, domain);
+
+    /* Serialise the memory parameters. */
+    args.params.params_len = nparams;
+    args.flags = flags;
+    if (VIR_ALLOC_N(args.params.params_val, nparams) < 0) {
+        virReportOOMError();
+        goto done;
+    }
+
+    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) {
+            virReportOOMError();
+            do_error = 1;
+        }
+        args.params.params_val[i].value.type = params[i].type;
+        switch (params[i].type) {
+        case VIR_DOMAIN_MEMORY_FIELD_INT:
+            args.params.params_val[i].value.remote_memory_param_value_u.i = params[i].value.i; break;
+        case VIR_DOMAIN_MEMORY_FIELD_UINT:
+            args.params.params_val[i].value.remote_memory_param_value_u.ui = params[i].value.ui; break;
+        case VIR_DOMAIN_MEMORY_FIELD_LLONG:
+            args.params.params_val[i].value.remote_memory_param_value_u.l = params[i].value.l; break;
+        case VIR_DOMAIN_MEMORY_FIELD_ULLONG:
+            args.params.params_val[i].value.remote_memory_param_value_u.ul = params[i].value.ul; break;
+        case VIR_DOMAIN_MEMORY_FIELD_DOUBLE:
+            args.params.params_val[i].value.remote_memory_param_value_u.d = params[i].value.d; break;
+        case VIR_DOMAIN_MEMORY_FIELD_BOOLEAN:
+            args.params.params_val[i].value.remote_memory_param_value_u.b = params[i].value.b; break;
+        default:
+            remoteError(VIR_ERR_RPC, "%s", _("unknown parameter type"));
+            do_error = 1;
+        }
+    }
+
+    if (do_error) {
+        xdr_free ((xdrproc_t) xdr_remote_domain_set_memory_parameters_args, (char *) &args);
+        goto done;
+    }
+
+    if (call (domain->conn, priv, 0, REMOTE_PROC_DOMAIN_SET_MEMORY_PARAMETERS,
+              (xdrproc_t) xdr_remote_domain_set_memory_parameters_args, (char *) &args,
+              (xdrproc_t) xdr_void, (char *) NULL) == -1)
+        goto done;
+
+    rv = 0;
+
+done:
+    remoteDriverUnlock(priv);
+    return rv;
+}
+
+static int
+remoteDomainGetMemoryParameters (virDomainPtr domain,
+                                 virMemoryParameterPtr params, int *nparams,
+                                 unsigned int flags)
+{
+    int rv = -1;
+    remote_domain_get_memory_parameters_args args;
+    remote_domain_get_memory_parameters_ret ret;
+    int i = -1;
+    struct private_data *priv = domain->conn->privateData;
+
+    remoteDriverLock(priv);
+
+    make_nonnull_domain (&args.dom, domain);
+    args.nparams = *nparams;
+    args.flags = flags;
+
+    memset (&ret, 0, sizeof ret);
+    if (call (domain->conn, priv, 0, REMOTE_PROC_DOMAIN_GET_MEMORY_PARAMETERS,
+              (xdrproc_t) xdr_remote_domain_get_memory_parameters_args, (char *) &args,
+              (xdrproc_t) xdr_remote_domain_get_memory_parameters_ret, (char *) &ret) == -1)
+        goto done;
+
+    /* Check the length of the returned list carefully. */
+    if (ret.params.params_len > REMOTE_DOMAIN_MEMORY_PARAMETERS_MAX ||
+        ret.params.params_len > *nparams) {
+        remoteError(VIR_ERR_RPC, "%s",
+                    _("remoteDomainGetMemoryParameters: "
+                      "returned number of parameters exceeds limit"));
+        goto cleanup;
+    }
+    /* Handle the case when the caller does not know the number of parameters
+     * and is asking for the number of parameters supported 
+     */
+    if (*nparams == 0) {
+        *nparams = ret.nparams;
+        rv = 0;
+        goto cleanup;
+    }
+
+    *nparams = ret.params.params_len;
+
+    /* Deserialise the result. */
+    for (i = 0; i < *nparams; ++i) {
+        if (virStrcpyStatic(params[i].field, ret.params.params_val[i].field) == NULL) {
+            remoteError(VIR_ERR_INTERNAL_ERROR,
+                        _("Parameter %s too big for destination"),
+                        ret.params.params_val[i].field);
+            goto cleanup;
+        }
+        params[i].type = ret.params.params_val[i].value.type;
+        switch (params[i].type) {
+        case VIR_DOMAIN_MEMORY_FIELD_INT:
+            params[i].value.i = ret.params.params_val[i].value.remote_memory_param_value_u.i; break;
+        case VIR_DOMAIN_MEMORY_FIELD_UINT:
+            params[i].value.ui = ret.params.params_val[i].value.remote_memory_param_value_u.ui; break;
+        case VIR_DOMAIN_MEMORY_FIELD_LLONG:
+            params[i].value.l = ret.params.params_val[i].value.remote_memory_param_value_u.l; break;
+        case VIR_DOMAIN_MEMORY_FIELD_ULLONG:
+            params[i].value.ul = ret.params.params_val[i].value.remote_memory_param_value_u.ul; break;
+        case VIR_DOMAIN_MEMORY_FIELD_DOUBLE:
+            params[i].value.d = ret.params.params_val[i].value.remote_memory_param_value_u.d; break;
+        case VIR_DOMAIN_MEMORY_FIELD_BOOLEAN:
+            params[i].value.b = ret.params.params_val[i].value.remote_memory_param_value_u.b; break;
+        default:
+            remoteError(VIR_ERR_RPC, "%s",
+                        _("remoteDomainGetMemoryParameters: "
+                          "unknown parameter type"));
+            goto cleanup;
+        }
+    }
+
+    rv = 0;
+
+cleanup:
+    xdr_free ((xdrproc_t) xdr_remote_domain_get_memory_parameters_ret, (char *) &ret);
+done:
+    remoteDriverUnlock(priv);
+    return rv;
+}
+
+static int
 remoteDomainGetInfo (virDomainPtr domain, virDomainInfoPtr info)
 {
     int rv = -1;
@@ -10366,8 +10515,8 @@ static virDriver remote_driver = {
     remoteDomainRevertToSnapshot, /* domainRevertToSnapshot */
     remoteDomainSnapshotDelete, /* domainSnapshotDelete */
     remoteQemuDomainMonitorCommand, /* qemuDomainMonitorCommand */
-    NULL, /* domainSetMemoryParameters */
-    NULL, /* domainGetMemoryParameters */
+    remoteDomainSetMemoryParameters, /* domainSetMemoryParameters */
+    remoteDomainGetMemoryParameters, /* domainGetMemoryParameters */
 };
 
 static virNetworkDriver network_driver = {
diff --git a/src/remote/remote_protocol.c b/src/remote/remote_protocol.c
index 2483004..3f2abec 100644
--- a/src/remote/remote_protocol.c
+++ b/src/remote/remote_protocol.c
@@ -308,6 +308,53 @@ xdr_remote_sched_param (XDR *xdrs, remote_sched_param *objp)
 }
 
 bool_t
+xdr_remote_memory_param_value (XDR *xdrs, remote_memory_param_value *objp)
+{
+
+         if (!xdr_int (xdrs, &objp->type))
+                 return FALSE;
+        switch (objp->type) {
+        case VIR_DOMAIN_MEMORY_FIELD_INT:
+                         return FALSE;
+                break;
+        case VIR_DOMAIN_MEMORY_FIELD_UINT:
+                 if (!xdr_u_int (xdrs, &objp->remote_memory_param_value_u.ui))
+                         return FALSE;
+                break;
+        case VIR_DOMAIN_MEMORY_FIELD_LLONG:
+                 if (!xdr_int64_t (xdrs, &objp->remote_memory_param_value_u.l))
+                         return FALSE;
+                break;
+        case VIR_DOMAIN_MEMORY_FIELD_ULLONG:
+                 if (!xdr_uint64_t (xdrs, &objp->remote_memory_param_value_u.ul))
+                         return FALSE;
+                break;
+        case VIR_DOMAIN_MEMORY_FIELD_DOUBLE:
+                 if (!xdr_double (xdrs, &objp->remote_memory_param_value_u.d))
+                         return FALSE;
+                break;
+        case VIR_DOMAIN_MEMORY_FIELD_BOOLEAN:
+                 if (!xdr_int (xdrs, &objp->remote_memory_param_value_u.b))
+                         return FALSE;
+                break;
+        default:
+                return FALSE;
+        }
+        return TRUE;
+}
+
+bool_t
+xdr_remote_memory_param (XDR *xdrs, remote_memory_param *objp)
+{
+
+         if (!xdr_remote_nonnull_string (xdrs, &objp->field))
+                 return FALSE;
+         if (!xdr_remote_memory_param_value (xdrs, &objp->value))
+                 return FALSE;
+        return TRUE;
+}
+
+bool_t
 xdr_remote_open_args (XDR *xdrs, remote_open_args *objp)
 {
 
@@ -581,6 +628,47 @@ xdr_remote_domain_set_scheduler_parameters_args (XDR *xdrs, remote_domain_set_sc
 }
 
 bool_t
+xdr_remote_domain_set_memory_parameters_args (XDR *xdrs, remote_domain_set_memory_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_MEMORY_PARAMETERS_MAX,
+                sizeof (remote_memory_param), (xdrproc_t) xdr_remote_memory_param))
+                 return FALSE;
+         if (!xdr_u_int (xdrs, &objp->flags))
+                 return FALSE;
+        return TRUE;
+}
+
+bool_t
+xdr_remote_domain_get_memory_parameters_args (XDR *xdrs, remote_domain_get_memory_parameters_args *objp)
+{
+
+         if (!xdr_remote_nonnull_domain (xdrs, &objp->dom))
+                 return FALSE;
+         if (!xdr_int (xdrs, &objp->nparams))
+                 return FALSE;
+         if (!xdr_u_int (xdrs, &objp->flags))
+                 return FALSE;
+        return TRUE;
+}
+
+bool_t
+xdr_remote_domain_get_memory_parameters_ret (XDR *xdrs, remote_domain_get_memory_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_MEMORY_PARAMETERS_MAX,
+                sizeof (remote_memory_param), (xdrproc_t) xdr_remote_memory_param))
+                 return FALSE;
+         if (!xdr_int (xdrs, &objp->nparams))
+                 return FALSE;
+        return TRUE;
+}
+
+bool_t
 xdr_remote_domain_block_stats_args (XDR *xdrs, remote_domain_block_stats_args *objp)
 {
 
diff --git a/src/remote/remote_protocol.h b/src/remote/remote_protocol.h
index afe9287..756da11 100644
--- a/src/remote/remote_protocol.h
+++ b/src/remote/remote_protocol.h
@@ -53,6 +53,7 @@ typedef remote_nonnull_string *remote_string;
 #define REMOTE_NODE_DEVICE_CAPS_LIST_MAX 16384
 #define REMOTE_NWFILTER_NAME_LIST_MAX 1024
 #define REMOTE_DOMAIN_SCHEDULER_PARAMETERS_MAX 16
+#define REMOTE_DOMAIN_MEMORY_PARAMETERS_MAX 16
 #define REMOTE_NODE_MAX_CELLS 1024
 #define REMOTE_AUTH_SASL_DATA_MAX 65536
 #define REMOTE_AUTH_TYPE_LIST_MAX 20
@@ -186,6 +187,25 @@ struct remote_sched_param {
 };
 typedef struct remote_sched_param remote_sched_param;
 
+struct remote_memory_param_value {
+        int type;
+        union {
+                int i;
+                u_int ui;
+                int64_t l;
+                uint64_t ul;
+                double d;
+                int b;
+        } remote_memory_param_value_u;
+};
+typedef struct remote_memory_param_value remote_memory_param_value;
+
+struct remote_memory_param {
+        remote_nonnull_string field;
+        remote_memory_param_value value;
+};
+typedef struct remote_memory_param remote_memory_param;
+
 struct remote_open_args {
         remote_string name;
         int flags;
@@ -307,6 +327,32 @@ struct remote_domain_set_scheduler_parameters_args {
 };
 typedef struct remote_domain_set_scheduler_parameters_args remote_domain_set_scheduler_parameters_args;
 
+struct remote_domain_set_memory_parameters_args {
+        remote_nonnull_domain dom;
+        struct {
+                u_int params_len;
+                remote_memory_param *params_val;
+        } params;
+        u_int flags;
+};
+typedef struct remote_domain_set_memory_parameters_args remote_domain_set_memory_parameters_args;
+
+struct remote_domain_get_memory_parameters_args {
+        remote_nonnull_domain dom;
+        int nparams;
+        u_int flags;
+};
+typedef struct remote_domain_get_memory_parameters_args remote_domain_get_memory_parameters_args;
+
+struct remote_domain_get_memory_parameters_ret {
+        struct {
+                u_int params_len;
+                remote_memory_param *params_val;
+        } params;
+        int nparams;
+};
+typedef struct remote_domain_get_memory_parameters_ret remote_domain_get_memory_parameters_ret;
+
 struct remote_domain_block_stats_args {
         remote_nonnull_domain dom;
         remote_nonnull_string path;
@@ -2233,6 +2279,8 @@ enum remote_procedure {
         REMOTE_PROC_DOMAIN_GET_BLOCK_INFO = 194,
         REMOTE_PROC_DOMAIN_EVENT_IO_ERROR_REASON = 195,
         REMOTE_PROC_DOMAIN_CREATE_WITH_FLAGS = 196,
+        REMOTE_PROC_DOMAIN_SET_MEMORY_PARAMETERS = 197,
+        REMOTE_PROC_DOMAIN_GET_MEMORY_PARAMETERS = 198,
 };
 typedef enum remote_procedure remote_procedure;
 
@@ -2288,6 +2336,8 @@ extern  bool_t xdr_remote_auth_type (XDR *, remote_auth_type*);
 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_memory_param_value (XDR *, remote_memory_param_value*);
+extern  bool_t xdr_remote_memory_param (XDR *, remote_memory_param*);
 extern  bool_t xdr_remote_open_args (XDR *, remote_open_args*);
 extern  bool_t xdr_remote_supports_feature_args (XDR *, remote_supports_feature_args*);
 extern  bool_t xdr_remote_supports_feature_ret (XDR *, remote_supports_feature_ret*);
@@ -2308,6 +2358,9 @@ extern  bool_t xdr_remote_domain_get_scheduler_type_ret (XDR *, remote_domain_ge
 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_domain_set_memory_parameters_args (XDR *, remote_domain_set_memory_parameters_args*);
+extern  bool_t xdr_remote_domain_get_memory_parameters_args (XDR *, remote_domain_get_memory_parameters_args*);
+extern  bool_t xdr_remote_domain_get_memory_parameters_ret (XDR *, remote_domain_get_memory_parameters_ret*);
 extern  bool_t xdr_remote_domain_block_stats_args (XDR *, remote_domain_block_stats_args*);
 extern  bool_t xdr_remote_domain_block_stats_ret (XDR *, remote_domain_block_stats_ret*);
 extern  bool_t xdr_remote_domain_interface_stats_args (XDR *, remote_domain_interface_stats_args*);
@@ -2623,6 +2676,8 @@ extern bool_t xdr_remote_auth_type ();
 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_memory_param_value ();
+extern bool_t xdr_remote_memory_param ();
 extern bool_t xdr_remote_open_args ();
 extern bool_t xdr_remote_supports_feature_args ();
 extern bool_t xdr_remote_supports_feature_ret ();
@@ -2643,6 +2698,9 @@ 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_domain_set_memory_parameters_args ();
+extern bool_t xdr_remote_domain_get_memory_parameters_args ();
+extern bool_t xdr_remote_domain_get_memory_parameters_ret ();
 extern bool_t xdr_remote_domain_block_stats_args ();
 extern bool_t xdr_remote_domain_block_stats_ret ();
 extern bool_t xdr_remote_domain_interface_stats_args ();
diff --git a/src/remote/remote_protocol.x b/src/remote/remote_protocol.x
index 8af469c..f5dcb5c 100644
--- a/src/remote/remote_protocol.x
+++ b/src/remote/remote_protocol.x
@@ -128,6 +128,9 @@ const REMOTE_NWFILTER_NAME_LIST_MAX = 1024;
 /* Upper limit on list of scheduler parameters. */
 const REMOTE_DOMAIN_SCHEDULER_PARAMETERS_MAX = 16;
 
+/* Upper limit on list of memory parameters. */
+const REMOTE_DOMAIN_MEMORY_PARAMETERS_MAX = 16;
+
 /* Upper limit on number of NUMA cells */
 const REMOTE_NODE_MAX_CELLS = 1024;
 
@@ -313,6 +316,26 @@ struct remote_sched_param {
     remote_sched_param_value value;
 };
 
+union remote_memory_param_value switch (int type) {
+ case VIR_DOMAIN_MEMORY_FIELD_INT:
+     int i;
+ case VIR_DOMAIN_MEMORY_FIELD_UINT:
+     unsigned int ui;
+ case VIR_DOMAIN_MEMORY_FIELD_LLONG:
+     hyper l;
+ case VIR_DOMAIN_MEMORY_FIELD_ULLONG:
+     unsigned hyper ul;
+ case VIR_DOMAIN_MEMORY_FIELD_DOUBLE:
+     double d;
+ case VIR_DOMAIN_MEMORY_FIELD_BOOLEAN:
+     int b;
+};
+
+struct remote_memory_param {
+    remote_nonnull_string field;
+    remote_memory_param_value value;
+};
+
 /*----- Calls. -----*/
 
 /* For each call we may have a 'remote_CALL_args' and 'remote_CALL_ret'
@@ -422,6 +445,23 @@ struct remote_domain_set_scheduler_parameters_args {
     remote_sched_param params<REMOTE_DOMAIN_SCHEDULER_PARAMETERS_MAX>;
 };
 
+struct remote_domain_set_memory_parameters_args {
+    remote_nonnull_domain dom;
+    remote_memory_param params<REMOTE_DOMAIN_MEMORY_PARAMETERS_MAX>;
+    unsigned int flags;
+};
+
+struct remote_domain_get_memory_parameters_args {
+    remote_nonnull_domain dom;
+    int nparams;
+    unsigned int flags;
+};
+
+struct remote_domain_get_memory_parameters_ret {
+    remote_memory_param params<REMOTE_DOMAIN_MEMORY_PARAMETERS_MAX>;
+    int nparams;
+};
+
 struct remote_domain_block_stats_args {
     remote_nonnull_domain dom;
     remote_nonnull_string path;
@@ -2020,7 +2060,9 @@ enum remote_procedure {
     REMOTE_PROC_DOMAIN_SNAPSHOT_DELETE = 193,
     REMOTE_PROC_DOMAIN_GET_BLOCK_INFO = 194,
     REMOTE_PROC_DOMAIN_EVENT_IO_ERROR_REASON = 195,
-    REMOTE_PROC_DOMAIN_CREATE_WITH_FLAGS = 196
+    REMOTE_PROC_DOMAIN_CREATE_WITH_FLAGS = 196,
+    REMOTE_PROC_DOMAIN_SET_MEMORY_PARAMETERS = 197,
+    REMOTE_PROC_DOMAIN_GET_MEMORY_PARAMETERS = 198
 
     /*
      * Notice how the entries are grouped in sets of 10 ?


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