Wanlong Gao | 96d0e26 | 2014-05-14 17:43:05 +0800 | [diff] [blame] | 1 | /* |
| 2 | * NUMA parameter parsing routines |
| 3 | * |
| 4 | * Copyright (c) 2014 Fujitsu Ltd. |
| 5 | * |
| 6 | * Permission is hereby granted, free of charge, to any person obtaining a copy |
| 7 | * of this software and associated documentation files (the "Software"), to deal |
| 8 | * in the Software without restriction, including without limitation the rights |
| 9 | * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell |
| 10 | * copies of the Software, and to permit persons to whom the Software is |
| 11 | * furnished to do so, subject to the following conditions: |
| 12 | * |
| 13 | * The above copyright notice and this permission notice shall be included in |
| 14 | * all copies or substantial portions of the Software. |
| 15 | * |
| 16 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| 17 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| 18 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
| 19 | * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
| 20 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
| 21 | * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN |
| 22 | * THE SOFTWARE. |
| 23 | */ |
| 24 | |
Peter Maydell | d38ea87 | 2016-01-29 17:50:05 +0000 | [diff] [blame] | 25 | #include "qemu/osdep.h" |
Eduardo Habkost | e35704b | 2015-02-08 16:51:16 -0200 | [diff] [blame] | 26 | #include "sysemu/numa.h" |
Wanlong Gao | 96d0e26 | 2014-05-14 17:43:05 +0800 | [diff] [blame] | 27 | #include "exec/cpu-common.h" |
Paolo Bonzini | 0987d73 | 2016-12-21 00:31:36 +0800 | [diff] [blame] | 28 | #include "exec/ramlist.h" |
Wanlong Gao | 96d0e26 | 2014-05-14 17:43:05 +0800 | [diff] [blame] | 29 | #include "qemu/bitmap.h" |
| 30 | #include "qom/cpu.h" |
Wanlong Gao | 2b631ec | 2014-05-14 17:43:06 +0800 | [diff] [blame] | 31 | #include "qemu/error-report.h" |
Markus Armbruster | e688df6 | 2018-02-01 12:18:31 +0100 | [diff] [blame] | 32 | #include "qapi/error.h" |
Wanlong Gao | 0042109 | 2014-05-14 17:43:08 +0800 | [diff] [blame] | 33 | #include "qapi/opts-visitor.h" |
Markus Armbruster | 112ed24 | 2018-02-26 17:13:27 -0600 | [diff] [blame] | 34 | #include "qapi/qapi-commands-misc.h" |
| 35 | #include "qapi/qapi-visit-misc.h" |
Paolo Bonzini | dfabb8b | 2014-05-14 17:43:15 +0800 | [diff] [blame] | 36 | #include "hw/boards.h" |
Paolo Bonzini | 7febe36 | 2014-05-14 17:43:17 +0800 | [diff] [blame] | 37 | #include "sysemu/hostmem.h" |
zhanghailiang | 5b009e4 | 2014-11-04 19:49:30 +0800 | [diff] [blame] | 38 | #include "hw/mem/pc-dimm.h" |
David Hildenbrand | 2cc0e2e | 2018-04-23 18:51:16 +0200 | [diff] [blame] | 39 | #include "hw/mem/memory-device.h" |
Eduardo Habkost | 7dcd1d7 | 2015-02-08 16:51:20 -0200 | [diff] [blame] | 40 | #include "qemu/option.h" |
| 41 | #include "qemu/config-file.h" |
Igor Mammedov | cc00188 | 2017-10-12 11:39:58 +0200 | [diff] [blame] | 42 | #include "qemu/cutils.h" |
Wanlong Gao | 96d0e26 | 2014-05-14 17:43:05 +0800 | [diff] [blame] | 43 | |
Wanlong Gao | 0042109 | 2014-05-14 17:43:08 +0800 | [diff] [blame] | 44 | QemuOptsList qemu_numa_opts = { |
| 45 | .name = "numa", |
| 46 | .implied_opt_name = "type", |
| 47 | .head = QTAILQ_HEAD_INITIALIZER(qemu_numa_opts.head), |
| 48 | .desc = { { 0 } } /* validated with OptsVisitor */ |
| 49 | }; |
| 50 | |
Paolo Bonzini | 7febe36 | 2014-05-14 17:43:17 +0800 | [diff] [blame] | 51 | static int have_memdevs = -1; |
Eduardo Habkost | 25712ff | 2015-02-08 16:51:19 -0200 | [diff] [blame] | 52 | static int max_numa_nodeid; /* Highest specified NUMA node ID, plus one. |
| 53 | * For all nodes, nodeid < max_numa_nodeid |
| 54 | */ |
Eduardo Habkost | de1a7c8 | 2015-02-08 16:51:18 -0200 | [diff] [blame] | 55 | int nb_numa_nodes; |
He Chen | 0f20343 | 2017-04-27 10:35:58 +0800 | [diff] [blame] | 56 | bool have_numa_distance; |
Eduardo Habkost | de1a7c8 | 2015-02-08 16:51:18 -0200 | [diff] [blame] | 57 | NodeInfo numa_info[MAX_NODES]; |
Paolo Bonzini | 7febe36 | 2014-05-14 17:43:17 +0800 | [diff] [blame] | 58 | |
Bharata B Rao | e75e2a1 | 2015-06-29 13:50:27 +0530 | [diff] [blame] | 59 | |
Igor Mammedov | 64c2a8f | 2017-05-10 13:29:49 +0200 | [diff] [blame] | 60 | static void parse_numa_node(MachineState *ms, NumaNodeOptions *node, |
Igor Mammedov | cc00188 | 2017-10-12 11:39:58 +0200 | [diff] [blame] | 61 | Error **errp) |
Wanlong Gao | 96d0e26 | 2014-05-14 17:43:05 +0800 | [diff] [blame] | 62 | { |
Markus Armbruster | a22528b | 2018-10-17 10:26:39 +0200 | [diff] [blame^] | 63 | Error *err = NULL; |
Wanlong Gao | 0042109 | 2014-05-14 17:43:08 +0800 | [diff] [blame] | 64 | uint16_t nodenr; |
| 65 | uint16List *cpus = NULL; |
Igor Mammedov | 64c2a8f | 2017-05-10 13:29:49 +0200 | [diff] [blame] | 66 | MachineClass *mc = MACHINE_GET_CLASS(ms); |
Wanlong Gao | 96d0e26 | 2014-05-14 17:43:05 +0800 | [diff] [blame] | 67 | |
Wanlong Gao | 0042109 | 2014-05-14 17:43:08 +0800 | [diff] [blame] | 68 | if (node->has_nodeid) { |
| 69 | nodenr = node->nodeid; |
| 70 | } else { |
| 71 | nodenr = nb_numa_nodes; |
| 72 | } |
| 73 | |
| 74 | if (nodenr >= MAX_NODES) { |
| 75 | error_setg(errp, "Max number of NUMA nodes reached: %" |
Gonglei | 01bbbcf | 2015-02-25 12:22:30 +0800 | [diff] [blame] | 76 | PRIu16 "", nodenr); |
Wanlong Gao | 96d0e26 | 2014-05-14 17:43:05 +0800 | [diff] [blame] | 77 | return; |
| 78 | } |
| 79 | |
Eduardo Habkost | 1945b9d | 2014-06-26 18:33:19 -0300 | [diff] [blame] | 80 | if (numa_info[nodenr].present) { |
| 81 | error_setg(errp, "Duplicate NUMA nodeid: %" PRIu16, nodenr); |
| 82 | return; |
| 83 | } |
| 84 | |
David Hildenbrand | 81ce6aa | 2018-02-27 12:02:55 +0100 | [diff] [blame] | 85 | if (!mc->cpu_index_to_instance_props || !mc->get_default_cpu_node_id) { |
Markus Armbruster | a22528b | 2018-10-17 10:26:39 +0200 | [diff] [blame^] | 86 | error_setg(errp, "NUMA is not supported by this machine-type"); |
| 87 | return; |
Igor Mammedov | 64c2a8f | 2017-05-10 13:29:49 +0200 | [diff] [blame] | 88 | } |
Wanlong Gao | 0042109 | 2014-05-14 17:43:08 +0800 | [diff] [blame] | 89 | for (cpus = node->cpus; cpus; cpus = cpus->next) { |
Igor Mammedov | 7c88e65 | 2017-05-10 13:29:50 +0200 | [diff] [blame] | 90 | CpuInstanceProperties props; |
Eduardo Habkost | 8979c94 | 2015-02-09 17:28:52 -0200 | [diff] [blame] | 91 | if (cpus->value >= max_cpus) { |
| 92 | error_setg(errp, |
| 93 | "CPU index (%" PRIu16 ")" |
| 94 | " should be smaller than maxcpus (%d)", |
| 95 | cpus->value, max_cpus); |
Wanlong Gao | 0042109 | 2014-05-14 17:43:08 +0800 | [diff] [blame] | 96 | return; |
Wanlong Gao | 96d0e26 | 2014-05-14 17:43:05 +0800 | [diff] [blame] | 97 | } |
Igor Mammedov | 7c88e65 | 2017-05-10 13:29:50 +0200 | [diff] [blame] | 98 | props = mc->cpu_index_to_instance_props(ms, cpus->value); |
| 99 | props.node_id = nodenr; |
| 100 | props.has_node_id = true; |
Markus Armbruster | a22528b | 2018-10-17 10:26:39 +0200 | [diff] [blame^] | 101 | machine_set_cpu_numa_node(ms, &props, &err); |
| 102 | if (err) { |
| 103 | error_propagate(errp, err); |
| 104 | return; |
| 105 | } |
Wanlong Gao | 96d0e26 | 2014-05-14 17:43:05 +0800 | [diff] [blame] | 106 | } |
| 107 | |
Paolo Bonzini | 7febe36 | 2014-05-14 17:43:17 +0800 | [diff] [blame] | 108 | if (node->has_mem && node->has_memdev) { |
Ishani Chugh | d0e31a1 | 2017-04-13 21:44:39 +0530 | [diff] [blame] | 109 | error_setg(errp, "cannot specify both mem= and memdev="); |
Paolo Bonzini | 7febe36 | 2014-05-14 17:43:17 +0800 | [diff] [blame] | 110 | return; |
| 111 | } |
| 112 | |
| 113 | if (have_memdevs == -1) { |
| 114 | have_memdevs = node->has_memdev; |
| 115 | } |
| 116 | if (node->has_memdev != have_memdevs) { |
Ishani Chugh | d0e31a1 | 2017-04-13 21:44:39 +0530 | [diff] [blame] | 117 | error_setg(errp, "memdev option must be specified for either " |
Gonglei | 01bbbcf | 2015-02-25 12:22:30 +0800 | [diff] [blame] | 118 | "all or no nodes"); |
Paolo Bonzini | 7febe36 | 2014-05-14 17:43:17 +0800 | [diff] [blame] | 119 | return; |
| 120 | } |
| 121 | |
Wanlong Gao | 0042109 | 2014-05-14 17:43:08 +0800 | [diff] [blame] | 122 | if (node->has_mem) { |
Igor Mammedov | cc00188 | 2017-10-12 11:39:58 +0200 | [diff] [blame] | 123 | numa_info[nodenr].node_mem = node->mem; |
Wanlong Gao | 96d0e26 | 2014-05-14 17:43:05 +0800 | [diff] [blame] | 124 | } |
Paolo Bonzini | 7febe36 | 2014-05-14 17:43:17 +0800 | [diff] [blame] | 125 | if (node->has_memdev) { |
| 126 | Object *o; |
| 127 | o = object_resolve_path_type(node->memdev, TYPE_MEMORY_BACKEND, NULL); |
| 128 | if (!o) { |
| 129 | error_setg(errp, "memdev=%s is ambiguous", node->memdev); |
| 130 | return; |
| 131 | } |
| 132 | |
| 133 | object_ref(o); |
Marc-André Lureau | 61d7c14 | 2017-06-07 20:36:30 +0400 | [diff] [blame] | 134 | numa_info[nodenr].node_mem = object_property_get_uint(o, "size", NULL); |
Paolo Bonzini | 7febe36 | 2014-05-14 17:43:17 +0800 | [diff] [blame] | 135 | numa_info[nodenr].node_memdev = MEMORY_BACKEND(o); |
| 136 | } |
Eduardo Habkost | 1af878e | 2014-06-26 18:33:18 -0300 | [diff] [blame] | 137 | numa_info[nodenr].present = true; |
| 138 | max_numa_nodeid = MAX(max_numa_nodeid, nodenr + 1); |
Dou Liyang | 7b8be49 | 2017-11-14 10:34:01 +0800 | [diff] [blame] | 139 | nb_numa_nodes++; |
Wanlong Gao | 96d0e26 | 2014-05-14 17:43:05 +0800 | [diff] [blame] | 140 | } |
| 141 | |
He Chen | 0f20343 | 2017-04-27 10:35:58 +0800 | [diff] [blame] | 142 | static void parse_numa_distance(NumaDistOptions *dist, Error **errp) |
| 143 | { |
| 144 | uint16_t src = dist->src; |
| 145 | uint16_t dst = dist->dst; |
| 146 | uint8_t val = dist->val; |
| 147 | |
| 148 | if (src >= MAX_NODES || dst >= MAX_NODES) { |
Igor Mammedov | 74f38e9 | 2018-05-16 17:06:14 +0200 | [diff] [blame] | 149 | error_setg(errp, "Parameter '%s' expects an integer between 0 and %d", |
| 150 | src >= MAX_NODES ? "src" : "dst", MAX_NODES - 1); |
He Chen | 0f20343 | 2017-04-27 10:35:58 +0800 | [diff] [blame] | 151 | return; |
| 152 | } |
| 153 | |
| 154 | if (!numa_info[src].present || !numa_info[dst].present) { |
| 155 | error_setg(errp, "Source/Destination NUMA node is missing. " |
| 156 | "Please use '-numa node' option to declare it first."); |
| 157 | return; |
| 158 | } |
| 159 | |
| 160 | if (val < NUMA_DISTANCE_MIN) { |
| 161 | error_setg(errp, "NUMA distance (%" PRIu8 ") is invalid, " |
| 162 | "it shouldn't be less than %d.", |
| 163 | val, NUMA_DISTANCE_MIN); |
| 164 | return; |
| 165 | } |
| 166 | |
| 167 | if (src == dst && val != NUMA_DISTANCE_MIN) { |
| 168 | error_setg(errp, "Local distance of node %d should be %d.", |
| 169 | src, NUMA_DISTANCE_MIN); |
| 170 | return; |
| 171 | } |
| 172 | |
| 173 | numa_info[src].distance[dst] = val; |
| 174 | have_numa_distance = true; |
| 175 | } |
| 176 | |
Igor Mammedov | 3319b4e | 2018-05-04 10:37:40 +0200 | [diff] [blame] | 177 | static |
| 178 | void set_numa_options(MachineState *ms, NumaOptions *object, Error **errp) |
Wanlong Gao | 96d0e26 | 2014-05-14 17:43:05 +0800 | [diff] [blame] | 179 | { |
Wanlong Gao | 0042109 | 2014-05-14 17:43:08 +0800 | [diff] [blame] | 180 | Error *err = NULL; |
Wanlong Gao | 96d0e26 | 2014-05-14 17:43:05 +0800 | [diff] [blame] | 181 | |
Eric Blake | 1fd5d4f | 2015-10-26 16:34:59 -0600 | [diff] [blame] | 182 | switch (object->type) { |
Markus Armbruster | d081a49 | 2017-02-21 21:46:26 +0100 | [diff] [blame] | 183 | case NUMA_OPTIONS_TYPE_NODE: |
Igor Mammedov | cc00188 | 2017-10-12 11:39:58 +0200 | [diff] [blame] | 184 | parse_numa_node(ms, &object->u.node, &err); |
Wanlong Gao | 0042109 | 2014-05-14 17:43:08 +0800 | [diff] [blame] | 185 | if (err) { |
Marc-André Lureau | 157e94e | 2016-07-13 02:39:13 +0200 | [diff] [blame] | 186 | goto end; |
Wanlong Gao | 96d0e26 | 2014-05-14 17:43:05 +0800 | [diff] [blame] | 187 | } |
Wanlong Gao | 0042109 | 2014-05-14 17:43:08 +0800 | [diff] [blame] | 188 | break; |
He Chen | 0f20343 | 2017-04-27 10:35:58 +0800 | [diff] [blame] | 189 | case NUMA_OPTIONS_TYPE_DIST: |
| 190 | parse_numa_distance(&object->u.dist, &err); |
| 191 | if (err) { |
| 192 | goto end; |
| 193 | } |
| 194 | break; |
Igor Mammedov | 419fcde | 2017-05-10 13:30:01 +0200 | [diff] [blame] | 195 | case NUMA_OPTIONS_TYPE_CPU: |
| 196 | if (!object->u.cpu.has_node_id) { |
| 197 | error_setg(&err, "Missing mandatory node-id property"); |
| 198 | goto end; |
| 199 | } |
| 200 | if (!numa_info[object->u.cpu.node_id].present) { |
| 201 | error_setg(&err, "Invalid node-id=%" PRId64 ", NUMA node must be " |
| 202 | "defined with -numa node,nodeid=ID before it's used with " |
| 203 | "-numa cpu,node-id=ID", object->u.cpu.node_id); |
| 204 | goto end; |
| 205 | } |
| 206 | |
| 207 | machine_set_cpu_numa_node(ms, qapi_NumaCpuOptions_base(&object->u.cpu), |
| 208 | &err); |
| 209 | break; |
Wanlong Gao | 0042109 | 2014-05-14 17:43:08 +0800 | [diff] [blame] | 210 | default: |
| 211 | abort(); |
Wanlong Gao | 96d0e26 | 2014-05-14 17:43:05 +0800 | [diff] [blame] | 212 | } |
Wanlong Gao | 0042109 | 2014-05-14 17:43:08 +0800 | [diff] [blame] | 213 | |
Marc-André Lureau | 157e94e | 2016-07-13 02:39:13 +0200 | [diff] [blame] | 214 | end: |
Igor Mammedov | 3319b4e | 2018-05-04 10:37:40 +0200 | [diff] [blame] | 215 | error_propagate(errp, err); |
| 216 | } |
| 217 | |
| 218 | int parse_numa(void *opaque, QemuOpts *opts, Error **errp) |
| 219 | { |
| 220 | NumaOptions *object = NULL; |
| 221 | MachineState *ms = MACHINE(opaque); |
| 222 | Error *err = NULL; |
| 223 | Visitor *v = opts_visitor_new(opts); |
| 224 | |
| 225 | visit_type_NumaOptions(v, NULL, &object, &err); |
| 226 | visit_free(v); |
| 227 | if (err) { |
| 228 | goto end; |
| 229 | } |
| 230 | |
| 231 | /* Fix up legacy suffix-less format */ |
| 232 | if ((object->type == NUMA_OPTIONS_TYPE_NODE) && object->u.node.has_mem) { |
| 233 | const char *mem_str = qemu_opt_get(opts, "mem"); |
| 234 | qemu_strtosz_MiB(mem_str, NULL, &object->u.node.mem); |
| 235 | } |
| 236 | |
| 237 | set_numa_options(ms, object, &err); |
| 238 | |
| 239 | end: |
Eric Blake | 96a1616 | 2016-02-23 14:14:33 -0700 | [diff] [blame] | 240 | qapi_free_NumaOptions(object); |
Marc-André Lureau | 157e94e | 2016-07-13 02:39:13 +0200 | [diff] [blame] | 241 | if (err) { |
| 242 | error_report_err(err); |
| 243 | return -1; |
| 244 | } |
Wanlong Gao | 0042109 | 2014-05-14 17:43:08 +0800 | [diff] [blame] | 245 | |
Marc-André Lureau | 157e94e | 2016-07-13 02:39:13 +0200 | [diff] [blame] | 246 | return 0; |
Wanlong Gao | 96d0e26 | 2014-05-14 17:43:05 +0800 | [diff] [blame] | 247 | } |
| 248 | |
He Chen | 0f20343 | 2017-04-27 10:35:58 +0800 | [diff] [blame] | 249 | /* If all node pair distances are symmetric, then only distances |
| 250 | * in one direction are enough. If there is even one asymmetric |
| 251 | * pair, though, then all distances must be provided. The |
| 252 | * distance from a node to itself is always NUMA_DISTANCE_MIN, |
| 253 | * so providing it is never necessary. |
| 254 | */ |
| 255 | static void validate_numa_distance(void) |
Eduardo Habkost | 3ef7197 | 2015-02-09 17:32:04 -0200 | [diff] [blame] | 256 | { |
He Chen | 0f20343 | 2017-04-27 10:35:58 +0800 | [diff] [blame] | 257 | int src, dst; |
| 258 | bool is_asymmetrical = false; |
Eduardo Habkost | 3ef7197 | 2015-02-09 17:32:04 -0200 | [diff] [blame] | 259 | |
He Chen | 0f20343 | 2017-04-27 10:35:58 +0800 | [diff] [blame] | 260 | for (src = 0; src < nb_numa_nodes; src++) { |
| 261 | for (dst = src; dst < nb_numa_nodes; dst++) { |
| 262 | if (numa_info[src].distance[dst] == 0 && |
| 263 | numa_info[dst].distance[src] == 0) { |
| 264 | if (src != dst) { |
| 265 | error_report("The distance between node %d and %d is " |
| 266 | "missing, at least one distance value " |
| 267 | "between each nodes should be provided.", |
| 268 | src, dst); |
| 269 | exit(EXIT_FAILURE); |
| 270 | } |
| 271 | } |
Eduardo Habkost | 3ef7197 | 2015-02-09 17:32:04 -0200 | [diff] [blame] | 272 | |
He Chen | 0f20343 | 2017-04-27 10:35:58 +0800 | [diff] [blame] | 273 | if (numa_info[src].distance[dst] != 0 && |
| 274 | numa_info[dst].distance[src] != 0 && |
| 275 | numa_info[src].distance[dst] != |
| 276 | numa_info[dst].distance[src]) { |
| 277 | is_asymmetrical = true; |
| 278 | } |
Eduardo Habkost | 3ef7197 | 2015-02-09 17:32:04 -0200 | [diff] [blame] | 279 | } |
Eduardo Habkost | 3ef7197 | 2015-02-09 17:32:04 -0200 | [diff] [blame] | 280 | } |
Eduardo Habkost | 549fc54 | 2015-02-09 17:35:04 -0200 | [diff] [blame] | 281 | |
He Chen | 0f20343 | 2017-04-27 10:35:58 +0800 | [diff] [blame] | 282 | if (is_asymmetrical) { |
| 283 | for (src = 0; src < nb_numa_nodes; src++) { |
| 284 | for (dst = 0; dst < nb_numa_nodes; dst++) { |
| 285 | if (src != dst && numa_info[src].distance[dst] == 0) { |
| 286 | error_report("At least one asymmetrical pair of " |
| 287 | "distances is given, please provide distances " |
| 288 | "for both directions of all node pairs."); |
| 289 | exit(EXIT_FAILURE); |
| 290 | } |
| 291 | } |
| 292 | } |
Eduardo Habkost | 549fc54 | 2015-02-09 17:35:04 -0200 | [diff] [blame] | 293 | } |
Eduardo Habkost | 3ef7197 | 2015-02-09 17:32:04 -0200 | [diff] [blame] | 294 | } |
| 295 | |
He Chen | 0f20343 | 2017-04-27 10:35:58 +0800 | [diff] [blame] | 296 | static void complete_init_numa_distance(void) |
| 297 | { |
| 298 | int src, dst; |
| 299 | |
| 300 | /* Fixup NUMA distance by symmetric policy because if it is an |
| 301 | * asymmetric distance table, it should be a complete table and |
| 302 | * there would not be any missing distance except local node, which |
| 303 | * is verified by validate_numa_distance above. |
| 304 | */ |
| 305 | for (src = 0; src < nb_numa_nodes; src++) { |
| 306 | for (dst = 0; dst < nb_numa_nodes; dst++) { |
| 307 | if (numa_info[src].distance[dst] == 0) { |
| 308 | if (src == dst) { |
| 309 | numa_info[src].distance[dst] = NUMA_DISTANCE_MIN; |
| 310 | } else { |
| 311 | numa_info[src].distance[dst] = numa_info[dst].distance[src]; |
| 312 | } |
| 313 | } |
| 314 | } |
| 315 | } |
| 316 | } |
| 317 | |
Laurent Vivier | 3bfe571 | 2017-05-02 18:29:55 +0200 | [diff] [blame] | 318 | void numa_legacy_auto_assign_ram(MachineClass *mc, NodeInfo *nodes, |
| 319 | int nb_nodes, ram_addr_t size) |
Wanlong Gao | 96d0e26 | 2014-05-14 17:43:05 +0800 | [diff] [blame] | 320 | { |
Eduardo Habkost | 12d6e46 | 2014-06-26 18:33:20 -0300 | [diff] [blame] | 321 | int i; |
Laurent Vivier | 3bfe571 | 2017-05-02 18:29:55 +0200 | [diff] [blame] | 322 | uint64_t usedmem = 0; |
Eduardo Habkost | 12d6e46 | 2014-06-26 18:33:20 -0300 | [diff] [blame] | 323 | |
Laurent Vivier | 3bfe571 | 2017-05-02 18:29:55 +0200 | [diff] [blame] | 324 | /* Align each node according to the alignment |
| 325 | * requirements of the machine class |
| 326 | */ |
| 327 | |
| 328 | for (i = 0; i < nb_nodes - 1; i++) { |
| 329 | nodes[i].node_mem = (size / nb_nodes) & |
| 330 | ~((1 << mc->numa_mem_align_shift) - 1); |
| 331 | usedmem += nodes[i].node_mem; |
Igor Mammedov | cdda201 | 2016-11-18 12:02:54 +0100 | [diff] [blame] | 332 | } |
Laurent Vivier | 3bfe571 | 2017-05-02 18:29:55 +0200 | [diff] [blame] | 333 | nodes[i].node_mem = size - usedmem; |
| 334 | } |
Igor Mammedov | cdda201 | 2016-11-18 12:02:54 +0100 | [diff] [blame] | 335 | |
Laurent Vivier | 3bfe571 | 2017-05-02 18:29:55 +0200 | [diff] [blame] | 336 | void numa_default_auto_assign_ram(MachineClass *mc, NodeInfo *nodes, |
| 337 | int nb_nodes, ram_addr_t size) |
| 338 | { |
| 339 | int i; |
| 340 | uint64_t usedmem = 0, node_mem; |
| 341 | uint64_t granularity = size / nb_nodes; |
| 342 | uint64_t propagate = 0; |
| 343 | |
| 344 | for (i = 0; i < nb_nodes - 1; i++) { |
| 345 | node_mem = (granularity + propagate) & |
| 346 | ~((1 << mc->numa_mem_align_shift) - 1); |
| 347 | propagate = granularity + propagate - node_mem; |
| 348 | nodes[i].node_mem = node_mem; |
| 349 | usedmem += node_mem; |
| 350 | } |
| 351 | nodes[i].node_mem = size - usedmem; |
| 352 | } |
| 353 | |
Igor Mammedov | 7a3099f | 2018-05-04 10:37:39 +0200 | [diff] [blame] | 354 | void numa_complete_configuration(MachineState *ms) |
Eduardo Habkost | 7dcd1d7 | 2015-02-08 16:51:20 -0200 | [diff] [blame] | 355 | { |
| 356 | int i; |
Igor Mammedov | ea089ee | 2017-05-10 13:29:45 +0200 | [diff] [blame] | 357 | MachineClass *mc = MACHINE_GET_CLASS(ms); |
Wanlong Gao | 96d0e26 | 2014-05-14 17:43:05 +0800 | [diff] [blame] | 358 | |
Dou Liyang | 7b8be49 | 2017-11-14 10:34:01 +0800 | [diff] [blame] | 359 | /* |
| 360 | * If memory hotplug is enabled (slots > 0) but without '-numa' |
| 361 | * options explicitly on CLI, guestes will break. |
| 362 | * |
| 363 | * Windows: won't enable memory hotplug without SRAT table at all |
| 364 | * |
| 365 | * Linux: if QEMU is started with initial memory all below 4Gb |
| 366 | * and no SRAT table present, guest kernel will use nommu DMA ops, |
| 367 | * which breaks 32bit hw drivers when memory is hotplugged and |
| 368 | * guest tries to use it with that drivers. |
| 369 | * |
| 370 | * Enable NUMA implicitly by adding a new NUMA node automatically. |
| 371 | */ |
| 372 | if (ms->ram_slots > 0 && nb_numa_nodes == 0 && |
| 373 | mc->auto_enable_numa_with_memhp) { |
| 374 | NumaNodeOptions node = { }; |
Markus Armbruster | a22528b | 2018-10-17 10:26:39 +0200 | [diff] [blame^] | 375 | parse_numa_node(ms, &node, &error_abort); |
Dou Liyang | 7b8be49 | 2017-11-14 10:34:01 +0800 | [diff] [blame] | 376 | } |
| 377 | |
Eduardo Habkost | 12d6e46 | 2014-06-26 18:33:20 -0300 | [diff] [blame] | 378 | assert(max_numa_nodeid <= MAX_NODES); |
| 379 | |
| 380 | /* No support for sparse NUMA node IDs yet: */ |
| 381 | for (i = max_numa_nodeid - 1; i >= 0; i--) { |
| 382 | /* Report large node IDs first, to make mistakes easier to spot */ |
| 383 | if (!numa_info[i].present) { |
| 384 | error_report("numa: Node ID missing: %d", i); |
| 385 | exit(1); |
| 386 | } |
| 387 | } |
| 388 | |
| 389 | /* This must be always true if all nodes are present: */ |
| 390 | assert(nb_numa_nodes == max_numa_nodeid); |
| 391 | |
Wanlong Gao | 96d0e26 | 2014-05-14 17:43:05 +0800 | [diff] [blame] | 392 | if (nb_numa_nodes > 0) { |
Wanlong Gao | 2b631ec | 2014-05-14 17:43:06 +0800 | [diff] [blame] | 393 | uint64_t numa_total; |
Wanlong Gao | 96d0e26 | 2014-05-14 17:43:05 +0800 | [diff] [blame] | 394 | |
| 395 | if (nb_numa_nodes > MAX_NODES) { |
| 396 | nb_numa_nodes = MAX_NODES; |
| 397 | } |
| 398 | |
Michael S. Tsirkin | 9851d0f | 2014-06-24 08:50:30 +0300 | [diff] [blame] | 399 | /* If no memory size is given for any node, assume the default case |
Wanlong Gao | 96d0e26 | 2014-05-14 17:43:05 +0800 | [diff] [blame] | 400 | * and distribute the available memory equally across all nodes |
| 401 | */ |
| 402 | for (i = 0; i < nb_numa_nodes; i++) { |
Wanlong Gao | 8c85901 | 2014-05-14 17:43:07 +0800 | [diff] [blame] | 403 | if (numa_info[i].node_mem != 0) { |
Wanlong Gao | 96d0e26 | 2014-05-14 17:43:05 +0800 | [diff] [blame] | 404 | break; |
| 405 | } |
| 406 | } |
| 407 | if (i == nb_numa_nodes) { |
Laurent Vivier | 3bfe571 | 2017-05-02 18:29:55 +0200 | [diff] [blame] | 408 | assert(mc->numa_auto_assign_ram); |
| 409 | mc->numa_auto_assign_ram(mc, numa_info, nb_numa_nodes, ram_size); |
Wanlong Gao | 96d0e26 | 2014-05-14 17:43:05 +0800 | [diff] [blame] | 410 | } |
| 411 | |
Wanlong Gao | 2b631ec | 2014-05-14 17:43:06 +0800 | [diff] [blame] | 412 | numa_total = 0; |
| 413 | for (i = 0; i < nb_numa_nodes; i++) { |
Wanlong Gao | 8c85901 | 2014-05-14 17:43:07 +0800 | [diff] [blame] | 414 | numa_total += numa_info[i].node_mem; |
Wanlong Gao | 2b631ec | 2014-05-14 17:43:06 +0800 | [diff] [blame] | 415 | } |
| 416 | if (numa_total != ram_size) { |
Hu Tao | c68233a | 2014-08-04 16:16:09 +0800 | [diff] [blame] | 417 | error_report("total memory for NUMA nodes (0x%" PRIx64 ")" |
| 418 | " should equal RAM size (0x" RAM_ADDR_FMT ")", |
Wanlong Gao | 2b631ec | 2014-05-14 17:43:06 +0800 | [diff] [blame] | 419 | numa_total, ram_size); |
| 420 | exit(1); |
| 421 | } |
| 422 | |
He Chen | 0f20343 | 2017-04-27 10:35:58 +0800 | [diff] [blame] | 423 | /* QEMU needs at least all unique node pair distances to build |
| 424 | * the whole NUMA distance table. QEMU treats the distance table |
| 425 | * as symmetric by default, i.e. distance A->B == distance B->A. |
| 426 | * Thus, QEMU is able to complete the distance table |
| 427 | * initialization even though only distance A->B is provided and |
| 428 | * distance B->A is not. QEMU knows the distance of a node to |
| 429 | * itself is always 10, so A->A distances may be omitted. When |
| 430 | * the distances of two nodes of a pair differ, i.e. distance |
| 431 | * A->B != distance B->A, then that means the distance table is |
| 432 | * asymmetric. In this case, the distances for both directions |
| 433 | * of all node pairs are required. |
| 434 | */ |
| 435 | if (have_numa_distance) { |
| 436 | /* Validate enough NUMA distance information was provided. */ |
| 437 | validate_numa_distance(); |
| 438 | |
| 439 | /* Validation succeeded, now fill in any missing distances. */ |
| 440 | complete_init_numa_distance(); |
| 441 | } |
Wanlong Gao | 96d0e26 | 2014-05-14 17:43:05 +0800 | [diff] [blame] | 442 | } |
| 443 | } |
| 444 | |
Igor Mammedov | 7a3099f | 2018-05-04 10:37:39 +0200 | [diff] [blame] | 445 | void parse_numa_opts(MachineState *ms) |
| 446 | { |
| 447 | if (qemu_opts_foreach(qemu_find_opts("numa"), parse_numa, ms, NULL)) { |
| 448 | exit(1); |
| 449 | } |
| 450 | } |
| 451 | |
Igor Mammedov | f3be678 | 2018-05-04 10:37:48 +0200 | [diff] [blame] | 452 | void qmp_set_numa_node(NumaOptions *cmd, Error **errp) |
| 453 | { |
| 454 | if (!runstate_check(RUN_STATE_PRECONFIG)) { |
| 455 | error_setg(errp, "The command is permitted only in '%s' state", |
| 456 | RunState_str(RUN_STATE_PRECONFIG)); |
| 457 | return; |
| 458 | } |
| 459 | |
| 460 | set_numa_options(MACHINE(qdev_get_machine()), cmd, errp); |
| 461 | } |
| 462 | |
Igor Mammedov | a0ceb64 | 2017-05-30 18:23:56 +0200 | [diff] [blame] | 463 | void numa_cpu_pre_plug(const CPUArchId *slot, DeviceState *dev, Error **errp) |
| 464 | { |
Igor Mammedov | a0ceb64 | 2017-05-30 18:23:56 +0200 | [diff] [blame] | 465 | int node_id = object_property_get_int(OBJECT(dev), "node-id", &error_abort); |
| 466 | |
Igor Mammedov | a0ceb64 | 2017-05-30 18:23:56 +0200 | [diff] [blame] | 467 | if (node_id == CPU_UNSET_NUMA_NODE_ID) { |
| 468 | /* due to bug in libvirt, it doesn't pass node-id from props on |
| 469 | * device_add as expected, so we have to fix it up here */ |
Igor Mammedov | d41f3e7 | 2017-05-30 18:23:58 +0200 | [diff] [blame] | 470 | if (slot->props.has_node_id) { |
| 471 | object_property_set_int(OBJECT(dev), slot->props.node_id, |
| 472 | "node-id", errp); |
| 473 | } |
| 474 | } else if (node_id != slot->props.node_id) { |
Igor Mammedov | a0ceb64 | 2017-05-30 18:23:56 +0200 | [diff] [blame] | 475 | error_setg(errp, "node-id=%d must match numa node specified " |
| 476 | "with -numa option", node_id); |
| 477 | } |
| 478 | } |
| 479 | |
Paolo Bonzini | 7febe36 | 2014-05-14 17:43:17 +0800 | [diff] [blame] | 480 | static void allocate_system_memory_nonnuma(MemoryRegion *mr, Object *owner, |
| 481 | const char *name, |
| 482 | uint64_t ram_size) |
| 483 | { |
Paolo Bonzini | 0b183fc | 2014-05-14 17:43:19 +0800 | [diff] [blame] | 484 | if (mem_path) { |
| 485 | #ifdef __linux__ |
Paolo Bonzini | 7f56e74 | 2014-05-14 17:43:20 +0800 | [diff] [blame] | 486 | Error *err = NULL; |
Junyan He | cbfc017 | 2018-07-18 15:47:58 +0800 | [diff] [blame] | 487 | memory_region_init_ram_from_file(mr, owner, name, ram_size, 0, 0, |
Paolo Bonzini | 7f56e74 | 2014-05-14 17:43:20 +0800 | [diff] [blame] | 488 | mem_path, &err); |
Igor Mammedov | c3ba309 | 2014-06-17 12:17:05 +0200 | [diff] [blame] | 489 | if (err) { |
Markus Armbruster | 29b762f | 2015-02-10 15:06:23 +0100 | [diff] [blame] | 490 | error_report_err(err); |
Luiz Capitulino | fae947b | 2016-01-22 09:15:01 -0500 | [diff] [blame] | 491 | if (mem_prealloc) { |
| 492 | exit(1); |
| 493 | } |
Marcelo Tosatti | e85687f | 2018-01-15 18:17:01 -0200 | [diff] [blame] | 494 | error_report("falling back to regular RAM allocation."); |
Luiz Capitulino | fae947b | 2016-01-22 09:15:01 -0500 | [diff] [blame] | 495 | |
| 496 | /* Legacy behavior: if allocation failed, fall back to |
| 497 | * regular RAM allocation. |
| 498 | */ |
David Gibson | 6233b67 | 2018-04-19 17:19:11 +1000 | [diff] [blame] | 499 | mem_path = NULL; |
Peter Maydell | 1cfe48c | 2017-07-07 15:42:49 +0100 | [diff] [blame] | 500 | memory_region_init_ram_nomigrate(mr, owner, name, ram_size, &error_fatal); |
Paolo Bonzini | 7f56e74 | 2014-05-14 17:43:20 +0800 | [diff] [blame] | 501 | } |
Paolo Bonzini | 0b183fc | 2014-05-14 17:43:19 +0800 | [diff] [blame] | 502 | #else |
| 503 | fprintf(stderr, "-mem-path not supported on this host\n"); |
| 504 | exit(1); |
| 505 | #endif |
| 506 | } else { |
Peter Maydell | 1cfe48c | 2017-07-07 15:42:49 +0100 | [diff] [blame] | 507 | memory_region_init_ram_nomigrate(mr, owner, name, ram_size, &error_fatal); |
Paolo Bonzini | 0b183fc | 2014-05-14 17:43:19 +0800 | [diff] [blame] | 508 | } |
Paolo Bonzini | 7febe36 | 2014-05-14 17:43:17 +0800 | [diff] [blame] | 509 | vmstate_register_ram_global(mr); |
| 510 | } |
| 511 | |
Paolo Bonzini | dfabb8b | 2014-05-14 17:43:15 +0800 | [diff] [blame] | 512 | void memory_region_allocate_system_memory(MemoryRegion *mr, Object *owner, |
| 513 | const char *name, |
| 514 | uint64_t ram_size) |
| 515 | { |
Paolo Bonzini | 7febe36 | 2014-05-14 17:43:17 +0800 | [diff] [blame] | 516 | uint64_t addr = 0; |
| 517 | int i; |
| 518 | |
| 519 | if (nb_numa_nodes == 0 || !have_memdevs) { |
| 520 | allocate_system_memory_nonnuma(mr, owner, name, ram_size); |
| 521 | return; |
| 522 | } |
| 523 | |
| 524 | memory_region_init(mr, owner, name, ram_size); |
Dou Liyang | f51878b | 2017-08-22 15:45:36 +0800 | [diff] [blame] | 525 | for (i = 0; i < nb_numa_nodes; i++) { |
Paolo Bonzini | 7febe36 | 2014-05-14 17:43:17 +0800 | [diff] [blame] | 526 | uint64_t size = numa_info[i].node_mem; |
| 527 | HostMemoryBackend *backend = numa_info[i].node_memdev; |
| 528 | if (!backend) { |
| 529 | continue; |
| 530 | } |
David Hildenbrand | 7943e97 | 2018-06-19 15:41:36 +0200 | [diff] [blame] | 531 | MemoryRegion *seg = host_memory_backend_get_memory(backend); |
Paolo Bonzini | 7febe36 | 2014-05-14 17:43:17 +0800 | [diff] [blame] | 532 | |
Hu Tao | 0462fae | 2014-06-30 18:28:15 +0800 | [diff] [blame] | 533 | if (memory_region_is_mapped(seg)) { |
| 534 | char *path = object_get_canonical_path_component(OBJECT(backend)); |
| 535 | error_report("memory backend %s is used multiple times. Each " |
| 536 | "-numa option must use a different memdev value.", |
| 537 | path); |
| 538 | exit(1); |
| 539 | } |
| 540 | |
Greg Kurz | 0b21757 | 2016-07-19 10:28:35 +0200 | [diff] [blame] | 541 | host_memory_backend_set_mapped(backend, true); |
Paolo Bonzini | 7febe36 | 2014-05-14 17:43:17 +0800 | [diff] [blame] | 542 | memory_region_add_subregion(mr, addr, seg); |
| 543 | vmstate_register_ram_global(seg); |
| 544 | addr += size; |
| 545 | } |
Paolo Bonzini | dfabb8b | 2014-05-14 17:43:15 +0800 | [diff] [blame] | 546 | } |
Hu Tao | 76b5d85 | 2014-06-16 18:05:41 +0800 | [diff] [blame] | 547 | |
Vadim Galitsyn | 31959e8 | 2017-08-29 17:30:20 +0200 | [diff] [blame] | 548 | static void numa_stat_memory_devices(NumaNodeMem node_mem[]) |
zhanghailiang | 5b009e4 | 2014-11-04 19:49:30 +0800 | [diff] [blame] | 549 | { |
David Hildenbrand | 2cc0e2e | 2018-04-23 18:51:16 +0200 | [diff] [blame] | 550 | MemoryDeviceInfoList *info_list = qmp_memory_device_list(); |
zhanghailiang | 5b009e4 | 2014-11-04 19:49:30 +0800 | [diff] [blame] | 551 | MemoryDeviceInfoList *info; |
Vadim Galitsyn | 31959e8 | 2017-08-29 17:30:20 +0200 | [diff] [blame] | 552 | PCDIMMDeviceInfo *pcdimm_info; |
zhanghailiang | 5b009e4 | 2014-11-04 19:49:30 +0800 | [diff] [blame] | 553 | |
zhanghailiang | 5b009e4 | 2014-11-04 19:49:30 +0800 | [diff] [blame] | 554 | for (info = info_list; info; info = info->next) { |
| 555 | MemoryDeviceInfo *value = info->value; |
| 556 | |
| 557 | if (value) { |
Eric Blake | 1fd5d4f | 2015-10-26 16:34:59 -0600 | [diff] [blame] | 558 | switch (value->type) { |
Haozhong Zhang | 6388e18 | 2018-03-11 11:02:12 +0800 | [diff] [blame] | 559 | case MEMORY_DEVICE_INFO_KIND_DIMM: |
Vadim Galitsyn | 31959e8 | 2017-08-29 17:30:20 +0200 | [diff] [blame] | 560 | pcdimm_info = value->u.dimm.data; |
Haozhong Zhang | 6388e18 | 2018-03-11 11:02:12 +0800 | [diff] [blame] | 561 | break; |
| 562 | |
| 563 | case MEMORY_DEVICE_INFO_KIND_NVDIMM: |
| 564 | pcdimm_info = value->u.nvdimm.data; |
| 565 | break; |
| 566 | |
| 567 | default: |
| 568 | pcdimm_info = NULL; |
| 569 | break; |
| 570 | } |
| 571 | |
| 572 | if (pcdimm_info) { |
Vadim Galitsyn | 31959e8 | 2017-08-29 17:30:20 +0200 | [diff] [blame] | 573 | node_mem[pcdimm_info->node].node_mem += pcdimm_info->size; |
David Hildenbrand | 178003e | 2018-06-22 16:40:45 +0200 | [diff] [blame] | 574 | node_mem[pcdimm_info->node].node_plugged_mem += |
| 575 | pcdimm_info->size; |
zhanghailiang | 5b009e4 | 2014-11-04 19:49:30 +0800 | [diff] [blame] | 576 | } |
| 577 | } |
| 578 | } |
| 579 | qapi_free_MemoryDeviceInfoList(info_list); |
| 580 | } |
| 581 | |
Vadim Galitsyn | 31959e8 | 2017-08-29 17:30:20 +0200 | [diff] [blame] | 582 | void query_numa_node_mem(NumaNodeMem node_mem[]) |
zhanghailiang | 5b009e4 | 2014-11-04 19:49:30 +0800 | [diff] [blame] | 583 | { |
| 584 | int i; |
| 585 | |
| 586 | if (nb_numa_nodes <= 0) { |
| 587 | return; |
| 588 | } |
| 589 | |
| 590 | numa_stat_memory_devices(node_mem); |
| 591 | for (i = 0; i < nb_numa_nodes; i++) { |
Vadim Galitsyn | 31959e8 | 2017-08-29 17:30:20 +0200 | [diff] [blame] | 592 | node_mem[i].node_mem += numa_info[i].node_mem; |
zhanghailiang | 5b009e4 | 2014-11-04 19:49:30 +0800 | [diff] [blame] | 593 | } |
| 594 | } |
| 595 | |
Hu Tao | 76b5d85 | 2014-06-16 18:05:41 +0800 | [diff] [blame] | 596 | static int query_memdev(Object *obj, void *opaque) |
| 597 | { |
| 598 | MemdevList **list = opaque; |
Chen Fan | b0e9018 | 2014-08-18 14:46:33 +0800 | [diff] [blame] | 599 | MemdevList *m = NULL; |
Hu Tao | 76b5d85 | 2014-06-16 18:05:41 +0800 | [diff] [blame] | 600 | |
| 601 | if (object_dynamic_cast(obj, TYPE_MEMORY_BACKEND)) { |
Chen Fan | b0e9018 | 2014-08-18 14:46:33 +0800 | [diff] [blame] | 602 | m = g_malloc0(sizeof(*m)); |
Hu Tao | 76b5d85 | 2014-06-16 18:05:41 +0800 | [diff] [blame] | 603 | |
| 604 | m->value = g_malloc0(sizeof(*m->value)); |
| 605 | |
Paolo Bonzini | 29de4ec | 2018-04-30 11:48:18 +0200 | [diff] [blame] | 606 | m->value->id = object_get_canonical_path_component(obj); |
Igor Mammedov | e1ff3c6 | 2017-01-10 13:53:15 +0100 | [diff] [blame] | 607 | m->value->has_id = !!m->value->id; |
| 608 | |
Marc-André Lureau | 61d7c14 | 2017-06-07 20:36:30 +0400 | [diff] [blame] | 609 | m->value->size = object_property_get_uint(obj, "size", |
| 610 | &error_abort); |
Hu Tao | 76b5d85 | 2014-06-16 18:05:41 +0800 | [diff] [blame] | 611 | m->value->merge = object_property_get_bool(obj, "merge", |
Markus Armbruster | 2f6f826 | 2015-11-23 09:35:31 +0100 | [diff] [blame] | 612 | &error_abort); |
Hu Tao | 76b5d85 | 2014-06-16 18:05:41 +0800 | [diff] [blame] | 613 | m->value->dump = object_property_get_bool(obj, "dump", |
Markus Armbruster | 2f6f826 | 2015-11-23 09:35:31 +0100 | [diff] [blame] | 614 | &error_abort); |
Hu Tao | 76b5d85 | 2014-06-16 18:05:41 +0800 | [diff] [blame] | 615 | m->value->prealloc = object_property_get_bool(obj, |
Markus Armbruster | 2f6f826 | 2015-11-23 09:35:31 +0100 | [diff] [blame] | 616 | "prealloc", |
| 617 | &error_abort); |
Hu Tao | 76b5d85 | 2014-06-16 18:05:41 +0800 | [diff] [blame] | 618 | m->value->policy = object_property_get_enum(obj, |
| 619 | "policy", |
Daniel P. Berrange | a3590da | 2015-05-27 16:07:56 +0100 | [diff] [blame] | 620 | "HostMemPolicy", |
Markus Armbruster | 2f6f826 | 2015-11-23 09:35:31 +0100 | [diff] [blame] | 621 | &error_abort); |
Hu Tao | 76b5d85 | 2014-06-16 18:05:41 +0800 | [diff] [blame] | 622 | object_property_get_uint16List(obj, "host-nodes", |
Markus Armbruster | 2f6f826 | 2015-11-23 09:35:31 +0100 | [diff] [blame] | 623 | &m->value->host_nodes, |
| 624 | &error_abort); |
Hu Tao | 76b5d85 | 2014-06-16 18:05:41 +0800 | [diff] [blame] | 625 | |
| 626 | m->next = *list; |
| 627 | *list = m; |
| 628 | } |
| 629 | |
| 630 | return 0; |
Hu Tao | 76b5d85 | 2014-06-16 18:05:41 +0800 | [diff] [blame] | 631 | } |
| 632 | |
| 633 | MemdevList *qmp_query_memdev(Error **errp) |
| 634 | { |
Markus Armbruster | 2f6f826 | 2015-11-23 09:35:31 +0100 | [diff] [blame] | 635 | Object *obj = object_get_objects_root(); |
Chen Fan | ecaf54a | 2014-08-18 14:46:35 +0800 | [diff] [blame] | 636 | MemdevList *list = NULL; |
Hu Tao | 76b5d85 | 2014-06-16 18:05:41 +0800 | [diff] [blame] | 637 | |
Markus Armbruster | 2f6f826 | 2015-11-23 09:35:31 +0100 | [diff] [blame] | 638 | object_child_foreach(obj, query_memdev, &list); |
Hu Tao | 76b5d85 | 2014-06-16 18:05:41 +0800 | [diff] [blame] | 639 | return list; |
Hu Tao | 76b5d85 | 2014-06-16 18:05:41 +0800 | [diff] [blame] | 640 | } |
Igor Mammedov | 6bea1dd | 2016-10-05 17:51:23 +0200 | [diff] [blame] | 641 | |
Paolo Bonzini | 0987d73 | 2016-12-21 00:31:36 +0800 | [diff] [blame] | 642 | void ram_block_notifier_add(RAMBlockNotifier *n) |
| 643 | { |
| 644 | QLIST_INSERT_HEAD(&ram_list.ramblock_notifiers, n, next); |
| 645 | } |
| 646 | |
| 647 | void ram_block_notifier_remove(RAMBlockNotifier *n) |
| 648 | { |
| 649 | QLIST_REMOVE(n, next); |
| 650 | } |
| 651 | |
| 652 | void ram_block_notify_add(void *host, size_t size) |
| 653 | { |
| 654 | RAMBlockNotifier *notifier; |
| 655 | |
| 656 | QLIST_FOREACH(notifier, &ram_list.ramblock_notifiers, next) { |
| 657 | notifier->ram_block_added(notifier, host, size); |
| 658 | } |
| 659 | } |
| 660 | |
| 661 | void ram_block_notify_remove(void *host, size_t size) |
| 662 | { |
| 663 | RAMBlockNotifier *notifier; |
| 664 | |
| 665 | QLIST_FOREACH(notifier, &ram_list.ramblock_notifiers, next) { |
| 666 | notifier->ram_block_removed(notifier, host, size); |
| 667 | } |
| 668 | } |