4 * Copyright (C) 2014 Red Hat Inc
7 * Marcel Apfelbaum <marcel.a@redhat.com>
9 * This work is licensed under the terms of the GNU GPL, version 2 or later.
10 * See the COPYING file in the top-level directory.
13 #include "qemu/osdep.h"
14 #include "qemu/option.h"
15 #include "qapi/qmp/qerror.h"
16 #include "sysemu/replay.h"
17 #include "qemu/units.h"
18 #include "hw/boards.h"
19 #include "qapi/error.h"
20 #include "qapi/qapi-visit-common.h"
21 #include "qapi/visitor.h"
22 #include "hw/sysbus.h"
23 #include "sysemu/sysemu.h"
24 #include "sysemu/numa.h"
25 #include "qemu/error-report.h"
26 #include "sysemu/qtest.h"
27 #include "hw/pci/pci.h"
28 #include "hw/mem/nvdimm.h"
29 #include "migration/vmstate.h"
31 GlobalProperty hw_compat_5_1
[] = {
32 { "vhost-scsi", "num_queues", "1"},
33 { "vhost-user-scsi", "num_queues", "1"},
34 { "virtio-blk-device", "num-queues", "1"},
35 { "virtio-scsi-device", "num_queues", "1"},
37 const size_t hw_compat_5_1_len
= G_N_ELEMENTS(hw_compat_5_1
);
39 GlobalProperty hw_compat_5_0
[] = {
40 { "pci-host-bridge", "x-config-reg-migration-enabled", "off" },
41 { "virtio-balloon-device", "page-poison", "false" },
42 { "vmport", "x-read-set-eax", "off" },
43 { "vmport", "x-signal-unsupported-cmd", "off" },
44 { "vmport", "x-report-vmx-type", "off" },
45 { "vmport", "x-cmds-v2", "off" },
47 const size_t hw_compat_5_0_len
= G_N_ELEMENTS(hw_compat_5_0
);
49 GlobalProperty hw_compat_4_2
[] = {
50 { "virtio-blk-device", "queue-size", "128"},
51 { "virtio-scsi-device", "virtqueue_size", "128"},
52 { "virtio-blk-device", "x-enable-wce-if-config-wce", "off" },
53 { "virtio-blk-device", "seg-max-adjust", "off"},
54 { "virtio-scsi-device", "seg_max_adjust", "off"},
55 { "vhost-blk-device", "seg_max_adjust", "off"},
56 { "usb-host", "suppress-remote-wake", "off" },
57 { "usb-redir", "suppress-remote-wake", "off" },
58 { "qxl", "revision", "4" },
59 { "qxl-vga", "revision", "4" },
60 { "fw_cfg", "acpi-mr-restore", "false" },
62 const size_t hw_compat_4_2_len
= G_N_ELEMENTS(hw_compat_4_2
);
64 GlobalProperty hw_compat_4_1
[] = {
65 { "virtio-pci", "x-pcie-flr-init", "off" },
66 { "virtio-device", "use-disabled-flag", "false" },
68 const size_t hw_compat_4_1_len
= G_N_ELEMENTS(hw_compat_4_1
);
70 GlobalProperty hw_compat_4_0
[] = {
71 { "VGA", "edid", "false" },
72 { "secondary-vga", "edid", "false" },
73 { "bochs-display", "edid", "false" },
74 { "virtio-vga", "edid", "false" },
75 { "virtio-gpu-device", "edid", "false" },
76 { "virtio-device", "use-started", "false" },
77 { "virtio-balloon-device", "qemu-4-0-config-size", "true" },
78 { "pl031", "migrate-tick-offset", "false" },
80 const size_t hw_compat_4_0_len
= G_N_ELEMENTS(hw_compat_4_0
);
82 GlobalProperty hw_compat_3_1
[] = {
83 { "pcie-root-port", "x-speed", "2_5" },
84 { "pcie-root-port", "x-width", "1" },
85 { "memory-backend-file", "x-use-canonical-path-for-ramblock-id", "true" },
86 { "memory-backend-memfd", "x-use-canonical-path-for-ramblock-id", "true" },
87 { "tpm-crb", "ppi", "false" },
88 { "tpm-tis", "ppi", "false" },
89 { "usb-kbd", "serial", "42" },
90 { "usb-mouse", "serial", "42" },
91 { "usb-tablet", "serial", "42" },
92 { "virtio-blk-device", "discard", "false" },
93 { "virtio-blk-device", "write-zeroes", "false" },
94 { "virtio-balloon-device", "qemu-4-0-config-size", "false" },
95 { "pcie-root-port-base", "disable-acs", "true" }, /* Added in 4.1 */
97 const size_t hw_compat_3_1_len
= G_N_ELEMENTS(hw_compat_3_1
);
99 GlobalProperty hw_compat_3_0
[] = {};
100 const size_t hw_compat_3_0_len
= G_N_ELEMENTS(hw_compat_3_0
);
102 GlobalProperty hw_compat_2_12
[] = {
103 { "migration", "decompress-error-check", "off" },
104 { "hda-audio", "use-timer", "false" },
105 { "cirrus-vga", "global-vmstate", "true" },
106 { "VGA", "global-vmstate", "true" },
107 { "vmware-svga", "global-vmstate", "true" },
108 { "qxl-vga", "global-vmstate", "true" },
110 const size_t hw_compat_2_12_len
= G_N_ELEMENTS(hw_compat_2_12
);
112 GlobalProperty hw_compat_2_11
[] = {
113 { "hpet", "hpet-offset-saved", "false" },
114 { "virtio-blk-pci", "vectors", "2" },
115 { "vhost-user-blk-pci", "vectors", "2" },
116 { "e1000", "migrate_tso_props", "off" },
118 const size_t hw_compat_2_11_len
= G_N_ELEMENTS(hw_compat_2_11
);
120 GlobalProperty hw_compat_2_10
[] = {
121 { "virtio-mouse-device", "wheel-axis", "false" },
122 { "virtio-tablet-device", "wheel-axis", "false" },
124 const size_t hw_compat_2_10_len
= G_N_ELEMENTS(hw_compat_2_10
);
126 GlobalProperty hw_compat_2_9
[] = {
127 { "pci-bridge", "shpc", "off" },
128 { "intel-iommu", "pt", "off" },
129 { "virtio-net-device", "x-mtu-bypass-backend", "off" },
130 { "pcie-root-port", "x-migrate-msix", "false" },
132 const size_t hw_compat_2_9_len
= G_N_ELEMENTS(hw_compat_2_9
);
134 GlobalProperty hw_compat_2_8
[] = {
135 { "fw_cfg_mem", "x-file-slots", "0x10" },
136 { "fw_cfg_io", "x-file-slots", "0x10" },
137 { "pflash_cfi01", "old-multiple-chip-handling", "on" },
138 { "pci-bridge", "shpc", "on" },
139 { TYPE_PCI_DEVICE
, "x-pcie-extcap-init", "off" },
140 { "virtio-pci", "x-pcie-deverr-init", "off" },
141 { "virtio-pci", "x-pcie-lnkctl-init", "off" },
142 { "virtio-pci", "x-pcie-pm-init", "off" },
143 { "cirrus-vga", "vgamem_mb", "8" },
144 { "isa-cirrus-vga", "vgamem_mb", "8" },
146 const size_t hw_compat_2_8_len
= G_N_ELEMENTS(hw_compat_2_8
);
148 GlobalProperty hw_compat_2_7
[] = {
149 { "virtio-pci", "page-per-vq", "on" },
150 { "virtio-serial-device", "emergency-write", "off" },
151 { "ioapic", "version", "0x11" },
152 { "intel-iommu", "x-buggy-eim", "true" },
153 { "virtio-pci", "x-ignore-backend-features", "on" },
155 const size_t hw_compat_2_7_len
= G_N_ELEMENTS(hw_compat_2_7
);
157 GlobalProperty hw_compat_2_6
[] = {
158 { "virtio-mmio", "format_transport_address", "off" },
159 /* Optional because not all virtio-pci devices support legacy mode */
160 { "virtio-pci", "disable-modern", "on", .optional
= true },
161 { "virtio-pci", "disable-legacy", "off", .optional
= true },
163 const size_t hw_compat_2_6_len
= G_N_ELEMENTS(hw_compat_2_6
);
165 GlobalProperty hw_compat_2_5
[] = {
166 { "isa-fdc", "fallback", "144" },
167 { "pvscsi", "x-old-pci-configuration", "on" },
168 { "pvscsi", "x-disable-pcie", "on" },
169 { "vmxnet3", "x-old-msi-offsets", "on" },
170 { "vmxnet3", "x-disable-pcie", "on" },
172 const size_t hw_compat_2_5_len
= G_N_ELEMENTS(hw_compat_2_5
);
174 GlobalProperty hw_compat_2_4
[] = {
175 /* Optional because the 'scsi' property is Linux-only */
176 { "virtio-blk-device", "scsi", "true", .optional
= true },
177 { "e1000", "extra_mac_registers", "off" },
178 { "virtio-pci", "x-disable-pcie", "on" },
179 { "virtio-pci", "migrate-extra", "off" },
180 { "fw_cfg_mem", "dma_enabled", "off" },
181 { "fw_cfg_io", "dma_enabled", "off" }
183 const size_t hw_compat_2_4_len
= G_N_ELEMENTS(hw_compat_2_4
);
185 GlobalProperty hw_compat_2_3
[] = {
186 { "virtio-blk-pci", "any_layout", "off" },
187 { "virtio-balloon-pci", "any_layout", "off" },
188 { "virtio-serial-pci", "any_layout", "off" },
189 { "virtio-9p-pci", "any_layout", "off" },
190 { "virtio-rng-pci", "any_layout", "off" },
191 { TYPE_PCI_DEVICE
, "x-pcie-lnksta-dllla", "off" },
192 { "migration", "send-configuration", "off" },
193 { "migration", "send-section-footer", "off" },
194 { "migration", "store-global-state", "off" },
196 const size_t hw_compat_2_3_len
= G_N_ELEMENTS(hw_compat_2_3
);
198 GlobalProperty hw_compat_2_2
[] = {};
199 const size_t hw_compat_2_2_len
= G_N_ELEMENTS(hw_compat_2_2
);
201 GlobalProperty hw_compat_2_1
[] = {
202 { "intel-hda", "old_msi_addr", "on" },
203 { "VGA", "qemu-extended-regs", "off" },
204 { "secondary-vga", "qemu-extended-regs", "off" },
205 { "virtio-scsi-pci", "any_layout", "off" },
206 { "usb-mouse", "usb_version", "1" },
207 { "usb-kbd", "usb_version", "1" },
208 { "virtio-pci", "virtio-pci-bus-master-bug-migration", "on" },
210 const size_t hw_compat_2_1_len
= G_N_ELEMENTS(hw_compat_2_1
);
212 static char *machine_get_kernel(Object
*obj
, Error
**errp
)
214 MachineState
*ms
= MACHINE(obj
);
216 return g_strdup(ms
->kernel_filename
);
219 static void machine_set_kernel(Object
*obj
, const char *value
, Error
**errp
)
221 MachineState
*ms
= MACHINE(obj
);
223 g_free(ms
->kernel_filename
);
224 ms
->kernel_filename
= g_strdup(value
);
227 static char *machine_get_initrd(Object
*obj
, Error
**errp
)
229 MachineState
*ms
= MACHINE(obj
);
231 return g_strdup(ms
->initrd_filename
);
234 static void machine_set_initrd(Object
*obj
, const char *value
, Error
**errp
)
236 MachineState
*ms
= MACHINE(obj
);
238 g_free(ms
->initrd_filename
);
239 ms
->initrd_filename
= g_strdup(value
);
242 static char *machine_get_append(Object
*obj
, Error
**errp
)
244 MachineState
*ms
= MACHINE(obj
);
246 return g_strdup(ms
->kernel_cmdline
);
249 static void machine_set_append(Object
*obj
, const char *value
, Error
**errp
)
251 MachineState
*ms
= MACHINE(obj
);
253 g_free(ms
->kernel_cmdline
);
254 ms
->kernel_cmdline
= g_strdup(value
);
257 static char *machine_get_dtb(Object
*obj
, Error
**errp
)
259 MachineState
*ms
= MACHINE(obj
);
261 return g_strdup(ms
->dtb
);
264 static void machine_set_dtb(Object
*obj
, const char *value
, Error
**errp
)
266 MachineState
*ms
= MACHINE(obj
);
269 ms
->dtb
= g_strdup(value
);
272 static char *machine_get_dumpdtb(Object
*obj
, Error
**errp
)
274 MachineState
*ms
= MACHINE(obj
);
276 return g_strdup(ms
->dumpdtb
);
279 static void machine_set_dumpdtb(Object
*obj
, const char *value
, Error
**errp
)
281 MachineState
*ms
= MACHINE(obj
);
284 ms
->dumpdtb
= g_strdup(value
);
287 static void machine_get_phandle_start(Object
*obj
, Visitor
*v
,
288 const char *name
, void *opaque
,
291 MachineState
*ms
= MACHINE(obj
);
292 int64_t value
= ms
->phandle_start
;
294 visit_type_int(v
, name
, &value
, errp
);
297 static void machine_set_phandle_start(Object
*obj
, Visitor
*v
,
298 const char *name
, void *opaque
,
301 MachineState
*ms
= MACHINE(obj
);
304 if (!visit_type_int(v
, name
, &value
, errp
)) {
308 ms
->phandle_start
= value
;
311 static char *machine_get_dt_compatible(Object
*obj
, Error
**errp
)
313 MachineState
*ms
= MACHINE(obj
);
315 return g_strdup(ms
->dt_compatible
);
318 static void machine_set_dt_compatible(Object
*obj
, const char *value
, Error
**errp
)
320 MachineState
*ms
= MACHINE(obj
);
322 g_free(ms
->dt_compatible
);
323 ms
->dt_compatible
= g_strdup(value
);
326 static bool machine_get_dump_guest_core(Object
*obj
, Error
**errp
)
328 MachineState
*ms
= MACHINE(obj
);
330 return ms
->dump_guest_core
;
333 static void machine_set_dump_guest_core(Object
*obj
, bool value
, Error
**errp
)
335 MachineState
*ms
= MACHINE(obj
);
337 ms
->dump_guest_core
= value
;
340 static bool machine_get_mem_merge(Object
*obj
, Error
**errp
)
342 MachineState
*ms
= MACHINE(obj
);
344 return ms
->mem_merge
;
347 static void machine_set_mem_merge(Object
*obj
, bool value
, Error
**errp
)
349 MachineState
*ms
= MACHINE(obj
);
351 ms
->mem_merge
= value
;
354 static bool machine_get_usb(Object
*obj
, Error
**errp
)
356 MachineState
*ms
= MACHINE(obj
);
361 static void machine_set_usb(Object
*obj
, bool value
, Error
**errp
)
363 MachineState
*ms
= MACHINE(obj
);
366 ms
->usb_disabled
= !value
;
369 static bool machine_get_graphics(Object
*obj
, Error
**errp
)
371 MachineState
*ms
= MACHINE(obj
);
373 return ms
->enable_graphics
;
376 static void machine_set_graphics(Object
*obj
, bool value
, Error
**errp
)
378 MachineState
*ms
= MACHINE(obj
);
380 ms
->enable_graphics
= value
;
383 static char *machine_get_firmware(Object
*obj
, Error
**errp
)
385 MachineState
*ms
= MACHINE(obj
);
387 return g_strdup(ms
->firmware
);
390 static void machine_set_firmware(Object
*obj
, const char *value
, Error
**errp
)
392 MachineState
*ms
= MACHINE(obj
);
394 g_free(ms
->firmware
);
395 ms
->firmware
= g_strdup(value
);
398 static void machine_set_suppress_vmdesc(Object
*obj
, bool value
, Error
**errp
)
400 MachineState
*ms
= MACHINE(obj
);
402 ms
->suppress_vmdesc
= value
;
405 static bool machine_get_suppress_vmdesc(Object
*obj
, Error
**errp
)
407 MachineState
*ms
= MACHINE(obj
);
409 return ms
->suppress_vmdesc
;
412 static void machine_set_enforce_config_section(Object
*obj
, bool value
,
415 MachineState
*ms
= MACHINE(obj
);
417 warn_report("enforce-config-section is deprecated, please use "
418 "-global migration.send-configuration=on|off instead");
420 ms
->enforce_config_section
= value
;
423 static bool machine_get_enforce_config_section(Object
*obj
, Error
**errp
)
425 MachineState
*ms
= MACHINE(obj
);
427 return ms
->enforce_config_section
;
430 static char *machine_get_memory_encryption(Object
*obj
, Error
**errp
)
432 MachineState
*ms
= MACHINE(obj
);
434 return g_strdup(ms
->memory_encryption
);
437 static void machine_set_memory_encryption(Object
*obj
, const char *value
,
440 MachineState
*ms
= MACHINE(obj
);
442 g_free(ms
->memory_encryption
);
443 ms
->memory_encryption
= g_strdup(value
);
446 * With memory encryption, the host can't see the real contents of RAM,
447 * so there's no point in it trying to merge areas.
450 machine_set_mem_merge(obj
, false, errp
);
454 static bool machine_get_nvdimm(Object
*obj
, Error
**errp
)
456 MachineState
*ms
= MACHINE(obj
);
458 return ms
->nvdimms_state
->is_enabled
;
461 static void machine_set_nvdimm(Object
*obj
, bool value
, Error
**errp
)
463 MachineState
*ms
= MACHINE(obj
);
465 ms
->nvdimms_state
->is_enabled
= value
;
468 static bool machine_get_hmat(Object
*obj
, Error
**errp
)
470 MachineState
*ms
= MACHINE(obj
);
472 return ms
->numa_state
->hmat_enabled
;
475 static void machine_set_hmat(Object
*obj
, bool value
, Error
**errp
)
477 MachineState
*ms
= MACHINE(obj
);
479 ms
->numa_state
->hmat_enabled
= value
;
482 static char *machine_get_nvdimm_persistence(Object
*obj
, Error
**errp
)
484 MachineState
*ms
= MACHINE(obj
);
486 return g_strdup(ms
->nvdimms_state
->persistence_string
);
489 static void machine_set_nvdimm_persistence(Object
*obj
, const char *value
,
492 MachineState
*ms
= MACHINE(obj
);
493 NVDIMMState
*nvdimms_state
= ms
->nvdimms_state
;
495 if (strcmp(value
, "cpu") == 0) {
496 nvdimms_state
->persistence
= 3;
497 } else if (strcmp(value
, "mem-ctrl") == 0) {
498 nvdimms_state
->persistence
= 2;
500 error_setg(errp
, "-machine nvdimm-persistence=%s: unsupported option",
505 g_free(nvdimms_state
->persistence_string
);
506 nvdimms_state
->persistence_string
= g_strdup(value
);
509 void machine_class_allow_dynamic_sysbus_dev(MachineClass
*mc
, const char *type
)
511 strList
*item
= g_new0(strList
, 1);
513 item
->value
= g_strdup(type
);
514 item
->next
= mc
->allowed_dynamic_sysbus_devices
;
515 mc
->allowed_dynamic_sysbus_devices
= item
;
518 static void validate_sysbus_device(SysBusDevice
*sbdev
, void *opaque
)
520 MachineState
*machine
= opaque
;
521 MachineClass
*mc
= MACHINE_GET_CLASS(machine
);
522 bool allowed
= false;
525 for (wl
= mc
->allowed_dynamic_sysbus_devices
;
528 allowed
|= !!object_dynamic_cast(OBJECT(sbdev
), wl
->value
);
532 error_report("Option '-device %s' cannot be handled by this machine",
533 object_class_get_name(object_get_class(OBJECT(sbdev
))));
538 static char *machine_get_memdev(Object
*obj
, Error
**errp
)
540 MachineState
*ms
= MACHINE(obj
);
542 return g_strdup(ms
->ram_memdev_id
);
545 static void machine_set_memdev(Object
*obj
, const char *value
, Error
**errp
)
547 MachineState
*ms
= MACHINE(obj
);
549 g_free(ms
->ram_memdev_id
);
550 ms
->ram_memdev_id
= g_strdup(value
);
554 static void machine_init_notify(Notifier
*notifier
, void *data
)
556 MachineState
*machine
= MACHINE(qdev_get_machine());
559 * Loop through all dynamically created sysbus devices and check if they are
560 * all allowed. If a device is not allowed, error out.
562 foreach_dynamic_sysbus_device(validate_sysbus_device
, machine
);
565 HotpluggableCPUList
*machine_query_hotpluggable_cpus(MachineState
*machine
)
568 HotpluggableCPUList
*head
= NULL
;
569 MachineClass
*mc
= MACHINE_GET_CLASS(machine
);
571 /* force board to initialize possible_cpus if it hasn't been done yet */
572 mc
->possible_cpu_arch_ids(machine
);
574 for (i
= 0; i
< machine
->possible_cpus
->len
; i
++) {
576 HotpluggableCPUList
*list_item
= g_new0(typeof(*list_item
), 1);
577 HotpluggableCPU
*cpu_item
= g_new0(typeof(*cpu_item
), 1);
579 cpu_item
->type
= g_strdup(machine
->possible_cpus
->cpus
[i
].type
);
580 cpu_item
->vcpus_count
= machine
->possible_cpus
->cpus
[i
].vcpus_count
;
581 cpu_item
->props
= g_memdup(&machine
->possible_cpus
->cpus
[i
].props
,
582 sizeof(*cpu_item
->props
));
584 cpu
= machine
->possible_cpus
->cpus
[i
].cpu
;
586 cpu_item
->has_qom_path
= true;
587 cpu_item
->qom_path
= object_get_canonical_path(cpu
);
589 list_item
->value
= cpu_item
;
590 list_item
->next
= head
;
597 * machine_set_cpu_numa_node:
598 * @machine: machine object to modify
599 * @props: specifies which cpu objects to assign to
600 * numa node specified by @props.node_id
601 * @errp: if an error occurs, a pointer to an area to store the error
603 * Associate NUMA node specified by @props.node_id with cpu slots that
604 * match socket/core/thread-ids specified by @props. It's recommended to use
605 * query-hotpluggable-cpus.props values to specify affected cpu slots,
606 * which would lead to exact 1:1 mapping of cpu slots to NUMA node.
608 * However for CLI convenience it's possible to pass in subset of properties,
609 * which would affect all cpu slots that match it.
611 * -smp 4,cores=2,sockets=2 -numa node,nodeid=0 -numa node,nodeid=1 \
612 * -numa cpu,node-id=0,socket_id=0 \
613 * -numa cpu,node-id=1,socket_id=1
614 * will assign all child cores of socket 0 to node 0 and
615 * of socket 1 to node 1.
617 * On attempt of reassigning (already assigned) cpu slot to another NUMA node,
619 * Empty subset is disallowed and function will return with error in this case.
621 void machine_set_cpu_numa_node(MachineState
*machine
,
622 const CpuInstanceProperties
*props
, Error
**errp
)
624 MachineClass
*mc
= MACHINE_GET_CLASS(machine
);
625 NodeInfo
*numa_info
= machine
->numa_state
->nodes
;
629 if (!mc
->possible_cpu_arch_ids
) {
630 error_setg(errp
, "mapping of CPUs to NUMA node is not supported");
634 /* disabling node mapping is not supported, forbid it */
635 assert(props
->has_node_id
);
637 /* force board to initialize possible_cpus if it hasn't been done yet */
638 mc
->possible_cpu_arch_ids(machine
);
640 for (i
= 0; i
< machine
->possible_cpus
->len
; i
++) {
641 CPUArchId
*slot
= &machine
->possible_cpus
->cpus
[i
];
643 /* reject unsupported by board properties */
644 if (props
->has_thread_id
&& !slot
->props
.has_thread_id
) {
645 error_setg(errp
, "thread-id is not supported");
649 if (props
->has_core_id
&& !slot
->props
.has_core_id
) {
650 error_setg(errp
, "core-id is not supported");
654 if (props
->has_socket_id
&& !slot
->props
.has_socket_id
) {
655 error_setg(errp
, "socket-id is not supported");
659 if (props
->has_die_id
&& !slot
->props
.has_die_id
) {
660 error_setg(errp
, "die-id is not supported");
664 /* skip slots with explicit mismatch */
665 if (props
->has_thread_id
&& props
->thread_id
!= slot
->props
.thread_id
) {
669 if (props
->has_core_id
&& props
->core_id
!= slot
->props
.core_id
) {
673 if (props
->has_die_id
&& props
->die_id
!= slot
->props
.die_id
) {
677 if (props
->has_socket_id
&& props
->socket_id
!= slot
->props
.socket_id
) {
681 /* reject assignment if slot is already assigned, for compatibility
682 * of legacy cpu_index mapping with SPAPR core based mapping do not
683 * error out if cpu thread and matched core have the same node-id */
684 if (slot
->props
.has_node_id
&&
685 slot
->props
.node_id
!= props
->node_id
) {
686 error_setg(errp
, "CPU is already assigned to node-id: %" PRId64
,
687 slot
->props
.node_id
);
691 /* assign slot to node as it's matched '-numa cpu' key */
693 slot
->props
.node_id
= props
->node_id
;
694 slot
->props
.has_node_id
= props
->has_node_id
;
696 if (machine
->numa_state
->hmat_enabled
) {
697 if ((numa_info
[props
->node_id
].initiator
< MAX_NODES
) &&
698 (props
->node_id
!= numa_info
[props
->node_id
].initiator
)) {
699 error_setg(errp
, "The initiator of CPU NUMA node %" PRId64
700 " should be itself", props
->node_id
);
703 numa_info
[props
->node_id
].has_cpu
= true;
704 numa_info
[props
->node_id
].initiator
= props
->node_id
;
709 error_setg(errp
, "no match found");
713 static void smp_parse(MachineState
*ms
, QemuOpts
*opts
)
716 unsigned cpus
= qemu_opt_get_number(opts
, "cpus", 0);
717 unsigned sockets
= qemu_opt_get_number(opts
, "sockets", 0);
718 unsigned cores
= qemu_opt_get_number(opts
, "cores", 0);
719 unsigned threads
= qemu_opt_get_number(opts
, "threads", 0);
721 /* compute missing values, prefer sockets over cores over threads */
722 if (cpus
== 0 || sockets
== 0) {
723 cores
= cores
> 0 ? cores
: 1;
724 threads
= threads
> 0 ? threads
: 1;
726 sockets
= sockets
> 0 ? sockets
: 1;
727 cpus
= cores
* threads
* sockets
;
730 qemu_opt_get_number(opts
, "maxcpus", cpus
);
731 sockets
= ms
->smp
.max_cpus
/ (cores
* threads
);
733 } else if (cores
== 0) {
734 threads
= threads
> 0 ? threads
: 1;
735 cores
= cpus
/ (sockets
* threads
);
736 cores
= cores
> 0 ? cores
: 1;
737 } else if (threads
== 0) {
738 threads
= cpus
/ (cores
* sockets
);
739 threads
= threads
> 0 ? threads
: 1;
740 } else if (sockets
* cores
* threads
< cpus
) {
741 error_report("cpu topology: "
742 "sockets (%u) * cores (%u) * threads (%u) < "
744 sockets
, cores
, threads
, cpus
);
749 qemu_opt_get_number(opts
, "maxcpus", cpus
);
751 if (ms
->smp
.max_cpus
< cpus
) {
752 error_report("maxcpus must be equal to or greater than smp");
756 if (sockets
* cores
* threads
> ms
->smp
.max_cpus
) {
757 error_report("cpu topology: "
758 "sockets (%u) * cores (%u) * threads (%u) > "
760 sockets
, cores
, threads
,
765 if (sockets
* cores
* threads
!= ms
->smp
.max_cpus
) {
766 warn_report("Invalid CPU topology deprecated: "
767 "sockets (%u) * cores (%u) * threads (%u) "
769 sockets
, cores
, threads
,
774 ms
->smp
.cores
= cores
;
775 ms
->smp
.threads
= threads
;
776 ms
->smp
.sockets
= sockets
;
779 if (ms
->smp
.cpus
> 1) {
780 Error
*blocker
= NULL
;
781 error_setg(&blocker
, QERR_REPLAY_NOT_SUPPORTED
, "smp");
782 replay_add_blocker(blocker
);
786 static void machine_class_init(ObjectClass
*oc
, void *data
)
788 MachineClass
*mc
= MACHINE_CLASS(oc
);
790 /* Default 128 MB as guest ram size */
791 mc
->default_ram_size
= 128 * MiB
;
792 mc
->rom_file_has_mr
= true;
793 mc
->smp_parse
= smp_parse
;
795 /* numa node memory size aligned on 8MB by default.
796 * On Linux, each node's border has to be 8MB aligned
798 mc
->numa_mem_align_shift
= 23;
799 mc
->numa_auto_assign_ram
= numa_default_auto_assign_ram
;
801 object_class_property_add_str(oc
, "kernel",
802 machine_get_kernel
, machine_set_kernel
);
803 object_class_property_set_description(oc
, "kernel",
804 "Linux kernel image file");
806 object_class_property_add_str(oc
, "initrd",
807 machine_get_initrd
, machine_set_initrd
);
808 object_class_property_set_description(oc
, "initrd",
809 "Linux initial ramdisk file");
811 object_class_property_add_str(oc
, "append",
812 machine_get_append
, machine_set_append
);
813 object_class_property_set_description(oc
, "append",
814 "Linux kernel command line");
816 object_class_property_add_str(oc
, "dtb",
817 machine_get_dtb
, machine_set_dtb
);
818 object_class_property_set_description(oc
, "dtb",
819 "Linux kernel device tree file");
821 object_class_property_add_str(oc
, "dumpdtb",
822 machine_get_dumpdtb
, machine_set_dumpdtb
);
823 object_class_property_set_description(oc
, "dumpdtb",
824 "Dump current dtb to a file and quit");
826 object_class_property_add(oc
, "phandle-start", "int",
827 machine_get_phandle_start
, machine_set_phandle_start
,
829 object_class_property_set_description(oc
, "phandle-start",
830 "The first phandle ID we may generate dynamically");
832 object_class_property_add_str(oc
, "dt-compatible",
833 machine_get_dt_compatible
, machine_set_dt_compatible
);
834 object_class_property_set_description(oc
, "dt-compatible",
835 "Overrides the \"compatible\" property of the dt root node");
837 object_class_property_add_bool(oc
, "dump-guest-core",
838 machine_get_dump_guest_core
, machine_set_dump_guest_core
);
839 object_class_property_set_description(oc
, "dump-guest-core",
840 "Include guest memory in a core dump");
842 object_class_property_add_bool(oc
, "mem-merge",
843 machine_get_mem_merge
, machine_set_mem_merge
);
844 object_class_property_set_description(oc
, "mem-merge",
845 "Enable/disable memory merge support");
847 object_class_property_add_bool(oc
, "usb",
848 machine_get_usb
, machine_set_usb
);
849 object_class_property_set_description(oc
, "usb",
850 "Set on/off to enable/disable usb");
852 object_class_property_add_bool(oc
, "graphics",
853 machine_get_graphics
, machine_set_graphics
);
854 object_class_property_set_description(oc
, "graphics",
855 "Set on/off to enable/disable graphics emulation");
857 object_class_property_add_str(oc
, "firmware",
858 machine_get_firmware
, machine_set_firmware
);
859 object_class_property_set_description(oc
, "firmware",
862 object_class_property_add_bool(oc
, "suppress-vmdesc",
863 machine_get_suppress_vmdesc
, machine_set_suppress_vmdesc
);
864 object_class_property_set_description(oc
, "suppress-vmdesc",
865 "Set on to disable self-describing migration");
867 object_class_property_add_bool(oc
, "enforce-config-section",
868 machine_get_enforce_config_section
, machine_set_enforce_config_section
);
869 object_class_property_set_description(oc
, "enforce-config-section",
870 "Set on to enforce configuration section migration");
872 object_class_property_add_str(oc
, "memory-encryption",
873 machine_get_memory_encryption
, machine_set_memory_encryption
);
874 object_class_property_set_description(oc
, "memory-encryption",
875 "Set memory encryption object to use");
878 static void machine_class_base_init(ObjectClass
*oc
, void *data
)
880 if (!object_class_is_abstract(oc
)) {
881 MachineClass
*mc
= MACHINE_CLASS(oc
);
882 const char *cname
= object_class_get_name(oc
);
883 assert(g_str_has_suffix(cname
, TYPE_MACHINE_SUFFIX
));
884 mc
->name
= g_strndup(cname
,
885 strlen(cname
) - strlen(TYPE_MACHINE_SUFFIX
));
886 mc
->compat_props
= g_ptr_array_new();
890 static void machine_initfn(Object
*obj
)
892 MachineState
*ms
= MACHINE(obj
);
893 MachineClass
*mc
= MACHINE_GET_CLASS(obj
);
895 ms
->dump_guest_core
= true;
896 ms
->mem_merge
= true;
897 ms
->enable_graphics
= true;
899 if (mc
->nvdimm_supported
) {
900 Object
*obj
= OBJECT(ms
);
902 ms
->nvdimms_state
= g_new0(NVDIMMState
, 1);
903 object_property_add_bool(obj
, "nvdimm",
904 machine_get_nvdimm
, machine_set_nvdimm
);
905 object_property_set_description(obj
, "nvdimm",
906 "Set on/off to enable/disable "
907 "NVDIMM instantiation");
909 object_property_add_str(obj
, "nvdimm-persistence",
910 machine_get_nvdimm_persistence
,
911 machine_set_nvdimm_persistence
);
912 object_property_set_description(obj
, "nvdimm-persistence",
913 "Set NVDIMM persistence"
914 "Valid values are cpu, mem-ctrl");
917 if (mc
->cpu_index_to_instance_props
&& mc
->get_default_cpu_node_id
) {
918 ms
->numa_state
= g_new0(NumaState
, 1);
919 object_property_add_bool(obj
, "hmat",
920 machine_get_hmat
, machine_set_hmat
);
921 object_property_set_description(obj
, "hmat",
922 "Set on/off to enable/disable "
923 "ACPI Heterogeneous Memory Attribute "
927 object_property_add_str(obj
, "memory-backend",
928 machine_get_memdev
, machine_set_memdev
);
929 object_property_set_description(obj
, "memory-backend",
931 "Valid value is ID of hostmem based backend");
933 /* Register notifier when init is done for sysbus sanity checks */
934 ms
->sysbus_notifier
.notify
= machine_init_notify
;
935 qemu_add_machine_init_done_notifier(&ms
->sysbus_notifier
);
938 static void machine_finalize(Object
*obj
)
940 MachineState
*ms
= MACHINE(obj
);
942 g_free(ms
->kernel_filename
);
943 g_free(ms
->initrd_filename
);
944 g_free(ms
->kernel_cmdline
);
947 g_free(ms
->dt_compatible
);
948 g_free(ms
->firmware
);
949 g_free(ms
->device_memory
);
950 g_free(ms
->nvdimms_state
);
951 g_free(ms
->numa_state
);
954 bool machine_usb(MachineState
*machine
)
959 int machine_phandle_start(MachineState
*machine
)
961 return machine
->phandle_start
;
964 bool machine_dump_guest_core(MachineState
*machine
)
966 return machine
->dump_guest_core
;
969 bool machine_mem_merge(MachineState
*machine
)
971 return machine
->mem_merge
;
974 static char *cpu_slot_to_string(const CPUArchId
*cpu
)
976 GString
*s
= g_string_new(NULL
);
977 if (cpu
->props
.has_socket_id
) {
978 g_string_append_printf(s
, "socket-id: %"PRId64
, cpu
->props
.socket_id
);
980 if (cpu
->props
.has_die_id
) {
981 g_string_append_printf(s
, "die-id: %"PRId64
, cpu
->props
.die_id
);
983 if (cpu
->props
.has_core_id
) {
985 g_string_append_printf(s
, ", ");
987 g_string_append_printf(s
, "core-id: %"PRId64
, cpu
->props
.core_id
);
989 if (cpu
->props
.has_thread_id
) {
991 g_string_append_printf(s
, ", ");
993 g_string_append_printf(s
, "thread-id: %"PRId64
, cpu
->props
.thread_id
);
995 return g_string_free(s
, false);
998 static void numa_validate_initiator(NumaState
*numa_state
)
1001 NodeInfo
*numa_info
= numa_state
->nodes
;
1003 for (i
= 0; i
< numa_state
->num_nodes
; i
++) {
1004 if (numa_info
[i
].initiator
== MAX_NODES
) {
1005 error_report("The initiator of NUMA node %d is missing, use "
1006 "'-numa node,initiator' option to declare it", i
);
1010 if (!numa_info
[numa_info
[i
].initiator
].present
) {
1011 error_report("NUMA node %" PRIu16
" is missing, use "
1012 "'-numa node' option to declare it first",
1013 numa_info
[i
].initiator
);
1017 if (!numa_info
[numa_info
[i
].initiator
].has_cpu
) {
1018 error_report("The initiator of NUMA node %d is invalid", i
);
1024 static void machine_numa_finish_cpu_init(MachineState
*machine
)
1027 bool default_mapping
;
1028 GString
*s
= g_string_new(NULL
);
1029 MachineClass
*mc
= MACHINE_GET_CLASS(machine
);
1030 const CPUArchIdList
*possible_cpus
= mc
->possible_cpu_arch_ids(machine
);
1032 assert(machine
->numa_state
->num_nodes
);
1033 for (i
= 0; i
< possible_cpus
->len
; i
++) {
1034 if (possible_cpus
->cpus
[i
].props
.has_node_id
) {
1038 default_mapping
= (i
== possible_cpus
->len
);
1040 for (i
= 0; i
< possible_cpus
->len
; i
++) {
1041 const CPUArchId
*cpu_slot
= &possible_cpus
->cpus
[i
];
1043 if (!cpu_slot
->props
.has_node_id
) {
1044 /* fetch default mapping from board and enable it */
1045 CpuInstanceProperties props
= cpu_slot
->props
;
1047 props
.node_id
= mc
->get_default_cpu_node_id(machine
, i
);
1048 if (!default_mapping
) {
1049 /* record slots with not set mapping,
1050 * TODO: make it hard error in future */
1051 char *cpu_str
= cpu_slot_to_string(cpu_slot
);
1052 g_string_append_printf(s
, "%sCPU %d [%s]",
1053 s
->len
? ", " : "", i
, cpu_str
);
1056 /* non mapped cpus used to fallback to node 0 */
1060 props
.has_node_id
= true;
1061 machine_set_cpu_numa_node(machine
, &props
, &error_fatal
);
1065 if (machine
->numa_state
->hmat_enabled
) {
1066 numa_validate_initiator(machine
->numa_state
);
1069 if (s
->len
&& !qtest_enabled()) {
1070 warn_report("CPU(s) not present in any NUMA nodes: %s",
1072 warn_report("All CPU(s) up to maxcpus should be described "
1073 "in NUMA config, ability to start up with partial NUMA "
1074 "mappings is obsoleted and will be removed in future");
1076 g_string_free(s
, true);
1079 MemoryRegion
*machine_consume_memdev(MachineState
*machine
,
1080 HostMemoryBackend
*backend
)
1082 MemoryRegion
*ret
= host_memory_backend_get_memory(backend
);
1084 if (memory_region_is_mapped(ret
)) {
1085 error_report("memory backend %s can't be used multiple times.",
1086 object_get_canonical_path_component(OBJECT(backend
)));
1089 host_memory_backend_set_mapped(backend
, true);
1090 vmstate_register_ram_global(ret
);
1094 void machine_run_board_init(MachineState
*machine
)
1096 MachineClass
*machine_class
= MACHINE_GET_CLASS(machine
);
1098 if (machine
->ram_memdev_id
) {
1100 o
= object_resolve_path_type(machine
->ram_memdev_id
,
1101 TYPE_MEMORY_BACKEND
, NULL
);
1102 machine
->ram
= machine_consume_memdev(machine
, MEMORY_BACKEND(o
));
1105 if (machine
->numa_state
) {
1106 numa_complete_configuration(machine
);
1107 if (machine
->numa_state
->num_nodes
) {
1108 machine_numa_finish_cpu_init(machine
);
1112 /* If the machine supports the valid_cpu_types check and the user
1113 * specified a CPU with -cpu check here that the user CPU is supported.
1115 if (machine_class
->valid_cpu_types
&& machine
->cpu_type
) {
1116 ObjectClass
*class = object_class_by_name(machine
->cpu_type
);
1119 for (i
= 0; machine_class
->valid_cpu_types
[i
]; i
++) {
1120 if (object_class_dynamic_cast(class,
1121 machine_class
->valid_cpu_types
[i
])) {
1122 /* The user specificed CPU is in the valid field, we are
1129 if (!machine_class
->valid_cpu_types
[i
]) {
1130 /* The user specified CPU is not valid */
1131 error_report("Invalid CPU type: %s", machine
->cpu_type
);
1132 error_printf("The valid types are: %s",
1133 machine_class
->valid_cpu_types
[0]);
1134 for (i
= 1; machine_class
->valid_cpu_types
[i
]; i
++) {
1135 error_printf(", %s", machine_class
->valid_cpu_types
[i
]);
1143 machine_class
->init(machine
);
1146 static const TypeInfo machine_info
= {
1147 .name
= TYPE_MACHINE
,
1148 .parent
= TYPE_OBJECT
,
1150 .class_size
= sizeof(MachineClass
),
1151 .class_init
= machine_class_init
,
1152 .class_base_init
= machine_class_base_init
,
1153 .instance_size
= sizeof(MachineState
),
1154 .instance_init
= machine_initfn
,
1155 .instance_finalize
= machine_finalize
,
1158 static void machine_register_types(void)
1160 type_register_static(&machine_info
);
1163 type_init(machine_register_types
)