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_4_2
[] = {
32 { "virtio-blk-device", "queue-size", "128"},
33 { "virtio-scsi-device", "virtqueue_size", "128"},
34 { "virtio-blk-device", "x-enable-wce-if-config-wce", "off" },
35 { "virtio-blk-device", "seg-max-adjust", "off"},
36 { "virtio-scsi-device", "seg_max_adjust", "off"},
37 { "vhost-blk-device", "seg_max_adjust", "off"},
38 { "usb-host", "suppress-remote-wake", "off" },
39 { "usb-redir", "suppress-remote-wake", "off" },
40 { "qxl", "revision", "4" },
41 { "qxl-vga", "revision", "4" },
42 { "fw_cfg", "acpi-mr-restore", "false" },
44 const size_t hw_compat_4_2_len
= G_N_ELEMENTS(hw_compat_4_2
);
46 GlobalProperty hw_compat_4_1
[] = {
47 { "virtio-pci", "x-pcie-flr-init", "off" },
48 { "virtio-device", "use-disabled-flag", "false" },
50 const size_t hw_compat_4_1_len
= G_N_ELEMENTS(hw_compat_4_1
);
52 GlobalProperty hw_compat_4_0
[] = {
53 { "VGA", "edid", "false" },
54 { "secondary-vga", "edid", "false" },
55 { "bochs-display", "edid", "false" },
56 { "virtio-vga", "edid", "false" },
57 { "virtio-gpu-device", "edid", "false" },
58 { "virtio-device", "use-started", "false" },
59 { "virtio-balloon-device", "qemu-4-0-config-size", "true" },
60 { "pl031", "migrate-tick-offset", "false" },
62 const size_t hw_compat_4_0_len
= G_N_ELEMENTS(hw_compat_4_0
);
64 GlobalProperty hw_compat_3_1
[] = {
65 { "pcie-root-port", "x-speed", "2_5" },
66 { "pcie-root-port", "x-width", "1" },
67 { "memory-backend-file", "x-use-canonical-path-for-ramblock-id", "true" },
68 { "memory-backend-memfd", "x-use-canonical-path-for-ramblock-id", "true" },
69 { "tpm-crb", "ppi", "false" },
70 { "tpm-tis", "ppi", "false" },
71 { "usb-kbd", "serial", "42" },
72 { "usb-mouse", "serial", "42" },
73 { "usb-tablet", "serial", "42" },
74 { "virtio-blk-device", "discard", "false" },
75 { "virtio-blk-device", "write-zeroes", "false" },
76 { "virtio-balloon-device", "qemu-4-0-config-size", "false" },
77 { "pcie-root-port-base", "disable-acs", "true" }, /* Added in 4.1 */
79 const size_t hw_compat_3_1_len
= G_N_ELEMENTS(hw_compat_3_1
);
81 GlobalProperty hw_compat_3_0
[] = {};
82 const size_t hw_compat_3_0_len
= G_N_ELEMENTS(hw_compat_3_0
);
84 GlobalProperty hw_compat_2_12
[] = {
85 { "migration", "decompress-error-check", "off" },
86 { "hda-audio", "use-timer", "false" },
87 { "cirrus-vga", "global-vmstate", "true" },
88 { "VGA", "global-vmstate", "true" },
89 { "vmware-svga", "global-vmstate", "true" },
90 { "qxl-vga", "global-vmstate", "true" },
92 const size_t hw_compat_2_12_len
= G_N_ELEMENTS(hw_compat_2_12
);
94 GlobalProperty hw_compat_2_11
[] = {
95 { "hpet", "hpet-offset-saved", "false" },
96 { "virtio-blk-pci", "vectors", "2" },
97 { "vhost-user-blk-pci", "vectors", "2" },
98 { "e1000", "migrate_tso_props", "off" },
100 const size_t hw_compat_2_11_len
= G_N_ELEMENTS(hw_compat_2_11
);
102 GlobalProperty hw_compat_2_10
[] = {
103 { "virtio-mouse-device", "wheel-axis", "false" },
104 { "virtio-tablet-device", "wheel-axis", "false" },
106 const size_t hw_compat_2_10_len
= G_N_ELEMENTS(hw_compat_2_10
);
108 GlobalProperty hw_compat_2_9
[] = {
109 { "pci-bridge", "shpc", "off" },
110 { "intel-iommu", "pt", "off" },
111 { "virtio-net-device", "x-mtu-bypass-backend", "off" },
112 { "pcie-root-port", "x-migrate-msix", "false" },
114 const size_t hw_compat_2_9_len
= G_N_ELEMENTS(hw_compat_2_9
);
116 GlobalProperty hw_compat_2_8
[] = {
117 { "fw_cfg_mem", "x-file-slots", "0x10" },
118 { "fw_cfg_io", "x-file-slots", "0x10" },
119 { "pflash_cfi01", "old-multiple-chip-handling", "on" },
120 { "pci-bridge", "shpc", "on" },
121 { TYPE_PCI_DEVICE
, "x-pcie-extcap-init", "off" },
122 { "virtio-pci", "x-pcie-deverr-init", "off" },
123 { "virtio-pci", "x-pcie-lnkctl-init", "off" },
124 { "virtio-pci", "x-pcie-pm-init", "off" },
125 { "cirrus-vga", "vgamem_mb", "8" },
126 { "isa-cirrus-vga", "vgamem_mb", "8" },
128 const size_t hw_compat_2_8_len
= G_N_ELEMENTS(hw_compat_2_8
);
130 GlobalProperty hw_compat_2_7
[] = {
131 { "virtio-pci", "page-per-vq", "on" },
132 { "virtio-serial-device", "emergency-write", "off" },
133 { "ioapic", "version", "0x11" },
134 { "intel-iommu", "x-buggy-eim", "true" },
135 { "virtio-pci", "x-ignore-backend-features", "on" },
137 const size_t hw_compat_2_7_len
= G_N_ELEMENTS(hw_compat_2_7
);
139 GlobalProperty hw_compat_2_6
[] = {
140 { "virtio-mmio", "format_transport_address", "off" },
141 /* Optional because not all virtio-pci devices support legacy mode */
142 { "virtio-pci", "disable-modern", "on", .optional
= true },
143 { "virtio-pci", "disable-legacy", "off", .optional
= true },
145 const size_t hw_compat_2_6_len
= G_N_ELEMENTS(hw_compat_2_6
);
147 GlobalProperty hw_compat_2_5
[] = {
148 { "isa-fdc", "fallback", "144" },
149 { "pvscsi", "x-old-pci-configuration", "on" },
150 { "pvscsi", "x-disable-pcie", "on" },
151 { "vmxnet3", "x-old-msi-offsets", "on" },
152 { "vmxnet3", "x-disable-pcie", "on" },
154 const size_t hw_compat_2_5_len
= G_N_ELEMENTS(hw_compat_2_5
);
156 GlobalProperty hw_compat_2_4
[] = {
157 /* Optional because the 'scsi' property is Linux-only */
158 { "virtio-blk-device", "scsi", "true", .optional
= true },
159 { "e1000", "extra_mac_registers", "off" },
160 { "virtio-pci", "x-disable-pcie", "on" },
161 { "virtio-pci", "migrate-extra", "off" },
162 { "fw_cfg_mem", "dma_enabled", "off" },
163 { "fw_cfg_io", "dma_enabled", "off" }
165 const size_t hw_compat_2_4_len
= G_N_ELEMENTS(hw_compat_2_4
);
167 GlobalProperty hw_compat_2_3
[] = {
168 { "virtio-blk-pci", "any_layout", "off" },
169 { "virtio-balloon-pci", "any_layout", "off" },
170 { "virtio-serial-pci", "any_layout", "off" },
171 { "virtio-9p-pci", "any_layout", "off" },
172 { "virtio-rng-pci", "any_layout", "off" },
173 { TYPE_PCI_DEVICE
, "x-pcie-lnksta-dllla", "off" },
174 { "migration", "send-configuration", "off" },
175 { "migration", "send-section-footer", "off" },
176 { "migration", "store-global-state", "off" },
178 const size_t hw_compat_2_3_len
= G_N_ELEMENTS(hw_compat_2_3
);
180 GlobalProperty hw_compat_2_2
[] = {};
181 const size_t hw_compat_2_2_len
= G_N_ELEMENTS(hw_compat_2_2
);
183 GlobalProperty hw_compat_2_1
[] = {
184 { "intel-hda", "old_msi_addr", "on" },
185 { "VGA", "qemu-extended-regs", "off" },
186 { "secondary-vga", "qemu-extended-regs", "off" },
187 { "virtio-scsi-pci", "any_layout", "off" },
188 { "usb-mouse", "usb_version", "1" },
189 { "usb-kbd", "usb_version", "1" },
190 { "virtio-pci", "virtio-pci-bus-master-bug-migration", "on" },
192 const size_t hw_compat_2_1_len
= G_N_ELEMENTS(hw_compat_2_1
);
194 static char *machine_get_kernel(Object
*obj
, Error
**errp
)
196 MachineState
*ms
= MACHINE(obj
);
198 return g_strdup(ms
->kernel_filename
);
201 static void machine_set_kernel(Object
*obj
, const char *value
, Error
**errp
)
203 MachineState
*ms
= MACHINE(obj
);
205 g_free(ms
->kernel_filename
);
206 ms
->kernel_filename
= g_strdup(value
);
209 static char *machine_get_initrd(Object
*obj
, Error
**errp
)
211 MachineState
*ms
= MACHINE(obj
);
213 return g_strdup(ms
->initrd_filename
);
216 static void machine_set_initrd(Object
*obj
, const char *value
, Error
**errp
)
218 MachineState
*ms
= MACHINE(obj
);
220 g_free(ms
->initrd_filename
);
221 ms
->initrd_filename
= g_strdup(value
);
224 static char *machine_get_append(Object
*obj
, Error
**errp
)
226 MachineState
*ms
= MACHINE(obj
);
228 return g_strdup(ms
->kernel_cmdline
);
231 static void machine_set_append(Object
*obj
, const char *value
, Error
**errp
)
233 MachineState
*ms
= MACHINE(obj
);
235 g_free(ms
->kernel_cmdline
);
236 ms
->kernel_cmdline
= g_strdup(value
);
239 static char *machine_get_dtb(Object
*obj
, Error
**errp
)
241 MachineState
*ms
= MACHINE(obj
);
243 return g_strdup(ms
->dtb
);
246 static void machine_set_dtb(Object
*obj
, const char *value
, Error
**errp
)
248 MachineState
*ms
= MACHINE(obj
);
251 ms
->dtb
= g_strdup(value
);
254 static char *machine_get_dumpdtb(Object
*obj
, Error
**errp
)
256 MachineState
*ms
= MACHINE(obj
);
258 return g_strdup(ms
->dumpdtb
);
261 static void machine_set_dumpdtb(Object
*obj
, const char *value
, Error
**errp
)
263 MachineState
*ms
= MACHINE(obj
);
266 ms
->dumpdtb
= g_strdup(value
);
269 static void machine_get_phandle_start(Object
*obj
, Visitor
*v
,
270 const char *name
, void *opaque
,
273 MachineState
*ms
= MACHINE(obj
);
274 int64_t value
= ms
->phandle_start
;
276 visit_type_int(v
, name
, &value
, errp
);
279 static void machine_set_phandle_start(Object
*obj
, Visitor
*v
,
280 const char *name
, void *opaque
,
283 MachineState
*ms
= MACHINE(obj
);
287 visit_type_int(v
, name
, &value
, &error
);
289 error_propagate(errp
, error
);
293 ms
->phandle_start
= value
;
296 static char *machine_get_dt_compatible(Object
*obj
, Error
**errp
)
298 MachineState
*ms
= MACHINE(obj
);
300 return g_strdup(ms
->dt_compatible
);
303 static void machine_set_dt_compatible(Object
*obj
, const char *value
, Error
**errp
)
305 MachineState
*ms
= MACHINE(obj
);
307 g_free(ms
->dt_compatible
);
308 ms
->dt_compatible
= g_strdup(value
);
311 static bool machine_get_dump_guest_core(Object
*obj
, Error
**errp
)
313 MachineState
*ms
= MACHINE(obj
);
315 return ms
->dump_guest_core
;
318 static void machine_set_dump_guest_core(Object
*obj
, bool value
, Error
**errp
)
320 MachineState
*ms
= MACHINE(obj
);
322 ms
->dump_guest_core
= value
;
325 static bool machine_get_mem_merge(Object
*obj
, Error
**errp
)
327 MachineState
*ms
= MACHINE(obj
);
329 return ms
->mem_merge
;
332 static void machine_set_mem_merge(Object
*obj
, bool value
, Error
**errp
)
334 MachineState
*ms
= MACHINE(obj
);
336 ms
->mem_merge
= value
;
339 static bool machine_get_usb(Object
*obj
, Error
**errp
)
341 MachineState
*ms
= MACHINE(obj
);
346 static void machine_set_usb(Object
*obj
, bool value
, Error
**errp
)
348 MachineState
*ms
= MACHINE(obj
);
351 ms
->usb_disabled
= !value
;
354 static bool machine_get_graphics(Object
*obj
, Error
**errp
)
356 MachineState
*ms
= MACHINE(obj
);
358 return ms
->enable_graphics
;
361 static void machine_set_graphics(Object
*obj
, bool value
, Error
**errp
)
363 MachineState
*ms
= MACHINE(obj
);
365 ms
->enable_graphics
= value
;
368 static char *machine_get_firmware(Object
*obj
, Error
**errp
)
370 MachineState
*ms
= MACHINE(obj
);
372 return g_strdup(ms
->firmware
);
375 static void machine_set_firmware(Object
*obj
, const char *value
, Error
**errp
)
377 MachineState
*ms
= MACHINE(obj
);
379 g_free(ms
->firmware
);
380 ms
->firmware
= g_strdup(value
);
383 static void machine_set_suppress_vmdesc(Object
*obj
, bool value
, Error
**errp
)
385 MachineState
*ms
= MACHINE(obj
);
387 ms
->suppress_vmdesc
= value
;
390 static bool machine_get_suppress_vmdesc(Object
*obj
, Error
**errp
)
392 MachineState
*ms
= MACHINE(obj
);
394 return ms
->suppress_vmdesc
;
397 static void machine_set_enforce_config_section(Object
*obj
, bool value
,
400 MachineState
*ms
= MACHINE(obj
);
402 warn_report("enforce-config-section is deprecated, please use "
403 "-global migration.send-configuration=on|off instead");
405 ms
->enforce_config_section
= value
;
408 static bool machine_get_enforce_config_section(Object
*obj
, Error
**errp
)
410 MachineState
*ms
= MACHINE(obj
);
412 return ms
->enforce_config_section
;
415 static char *machine_get_memory_encryption(Object
*obj
, Error
**errp
)
417 MachineState
*ms
= MACHINE(obj
);
419 return g_strdup(ms
->memory_encryption
);
422 static void machine_set_memory_encryption(Object
*obj
, const char *value
,
425 MachineState
*ms
= MACHINE(obj
);
427 g_free(ms
->memory_encryption
);
428 ms
->memory_encryption
= g_strdup(value
);
431 * With memory encryption, the host can't see the real contents of RAM,
432 * so there's no point in it trying to merge areas.
435 machine_set_mem_merge(obj
, false, errp
);
439 static bool machine_get_nvdimm(Object
*obj
, Error
**errp
)
441 MachineState
*ms
= MACHINE(obj
);
443 return ms
->nvdimms_state
->is_enabled
;
446 static void machine_set_nvdimm(Object
*obj
, bool value
, Error
**errp
)
448 MachineState
*ms
= MACHINE(obj
);
450 ms
->nvdimms_state
->is_enabled
= value
;
453 static bool machine_get_hmat(Object
*obj
, Error
**errp
)
455 MachineState
*ms
= MACHINE(obj
);
457 return ms
->numa_state
->hmat_enabled
;
460 static void machine_set_hmat(Object
*obj
, bool value
, Error
**errp
)
462 MachineState
*ms
= MACHINE(obj
);
464 ms
->numa_state
->hmat_enabled
= value
;
467 static char *machine_get_nvdimm_persistence(Object
*obj
, Error
**errp
)
469 MachineState
*ms
= MACHINE(obj
);
471 return g_strdup(ms
->nvdimms_state
->persistence_string
);
474 static void machine_set_nvdimm_persistence(Object
*obj
, const char *value
,
477 MachineState
*ms
= MACHINE(obj
);
478 NVDIMMState
*nvdimms_state
= ms
->nvdimms_state
;
480 if (strcmp(value
, "cpu") == 0) {
481 nvdimms_state
->persistence
= 3;
482 } else if (strcmp(value
, "mem-ctrl") == 0) {
483 nvdimms_state
->persistence
= 2;
485 error_setg(errp
, "-machine nvdimm-persistence=%s: unsupported option",
490 g_free(nvdimms_state
->persistence_string
);
491 nvdimms_state
->persistence_string
= g_strdup(value
);
494 void machine_class_allow_dynamic_sysbus_dev(MachineClass
*mc
, const char *type
)
496 strList
*item
= g_new0(strList
, 1);
498 item
->value
= g_strdup(type
);
499 item
->next
= mc
->allowed_dynamic_sysbus_devices
;
500 mc
->allowed_dynamic_sysbus_devices
= item
;
503 static void validate_sysbus_device(SysBusDevice
*sbdev
, void *opaque
)
505 MachineState
*machine
= opaque
;
506 MachineClass
*mc
= MACHINE_GET_CLASS(machine
);
507 bool allowed
= false;
510 for (wl
= mc
->allowed_dynamic_sysbus_devices
;
513 allowed
|= !!object_dynamic_cast(OBJECT(sbdev
), wl
->value
);
517 error_report("Option '-device %s' cannot be handled by this machine",
518 object_class_get_name(object_get_class(OBJECT(sbdev
))));
523 static char *machine_get_memdev(Object
*obj
, Error
**errp
)
525 MachineState
*ms
= MACHINE(obj
);
527 return g_strdup(ms
->ram_memdev_id
);
530 static void machine_set_memdev(Object
*obj
, const char *value
, Error
**errp
)
532 MachineState
*ms
= MACHINE(obj
);
534 g_free(ms
->ram_memdev_id
);
535 ms
->ram_memdev_id
= g_strdup(value
);
539 static void machine_init_notify(Notifier
*notifier
, void *data
)
541 MachineState
*machine
= MACHINE(qdev_get_machine());
544 * Loop through all dynamically created sysbus devices and check if they are
545 * all allowed. If a device is not allowed, error out.
547 foreach_dynamic_sysbus_device(validate_sysbus_device
, machine
);
550 HotpluggableCPUList
*machine_query_hotpluggable_cpus(MachineState
*machine
)
553 HotpluggableCPUList
*head
= NULL
;
554 MachineClass
*mc
= MACHINE_GET_CLASS(machine
);
556 /* force board to initialize possible_cpus if it hasn't been done yet */
557 mc
->possible_cpu_arch_ids(machine
);
559 for (i
= 0; i
< machine
->possible_cpus
->len
; i
++) {
561 HotpluggableCPUList
*list_item
= g_new0(typeof(*list_item
), 1);
562 HotpluggableCPU
*cpu_item
= g_new0(typeof(*cpu_item
), 1);
564 cpu_item
->type
= g_strdup(machine
->possible_cpus
->cpus
[i
].type
);
565 cpu_item
->vcpus_count
= machine
->possible_cpus
->cpus
[i
].vcpus_count
;
566 cpu_item
->props
= g_memdup(&machine
->possible_cpus
->cpus
[i
].props
,
567 sizeof(*cpu_item
->props
));
569 cpu
= machine
->possible_cpus
->cpus
[i
].cpu
;
571 cpu_item
->has_qom_path
= true;
572 cpu_item
->qom_path
= object_get_canonical_path(cpu
);
574 list_item
->value
= cpu_item
;
575 list_item
->next
= head
;
582 * machine_set_cpu_numa_node:
583 * @machine: machine object to modify
584 * @props: specifies which cpu objects to assign to
585 * numa node specified by @props.node_id
586 * @errp: if an error occurs, a pointer to an area to store the error
588 * Associate NUMA node specified by @props.node_id with cpu slots that
589 * match socket/core/thread-ids specified by @props. It's recommended to use
590 * query-hotpluggable-cpus.props values to specify affected cpu slots,
591 * which would lead to exact 1:1 mapping of cpu slots to NUMA node.
593 * However for CLI convenience it's possible to pass in subset of properties,
594 * which would affect all cpu slots that match it.
596 * -smp 4,cores=2,sockets=2 -numa node,nodeid=0 -numa node,nodeid=1 \
597 * -numa cpu,node-id=0,socket_id=0 \
598 * -numa cpu,node-id=1,socket_id=1
599 * will assign all child cores of socket 0 to node 0 and
600 * of socket 1 to node 1.
602 * On attempt of reassigning (already assigned) cpu slot to another NUMA node,
604 * Empty subset is disallowed and function will return with error in this case.
606 void machine_set_cpu_numa_node(MachineState
*machine
,
607 const CpuInstanceProperties
*props
, Error
**errp
)
609 MachineClass
*mc
= MACHINE_GET_CLASS(machine
);
610 NodeInfo
*numa_info
= machine
->numa_state
->nodes
;
614 if (!mc
->possible_cpu_arch_ids
) {
615 error_setg(errp
, "mapping of CPUs to NUMA node is not supported");
619 /* disabling node mapping is not supported, forbid it */
620 assert(props
->has_node_id
);
622 /* force board to initialize possible_cpus if it hasn't been done yet */
623 mc
->possible_cpu_arch_ids(machine
);
625 for (i
= 0; i
< machine
->possible_cpus
->len
; i
++) {
626 CPUArchId
*slot
= &machine
->possible_cpus
->cpus
[i
];
628 /* reject unsupported by board properties */
629 if (props
->has_thread_id
&& !slot
->props
.has_thread_id
) {
630 error_setg(errp
, "thread-id is not supported");
634 if (props
->has_core_id
&& !slot
->props
.has_core_id
) {
635 error_setg(errp
, "core-id is not supported");
639 if (props
->has_socket_id
&& !slot
->props
.has_socket_id
) {
640 error_setg(errp
, "socket-id is not supported");
644 if (props
->has_die_id
&& !slot
->props
.has_die_id
) {
645 error_setg(errp
, "die-id is not supported");
649 /* skip slots with explicit mismatch */
650 if (props
->has_thread_id
&& props
->thread_id
!= slot
->props
.thread_id
) {
654 if (props
->has_core_id
&& props
->core_id
!= slot
->props
.core_id
) {
658 if (props
->has_die_id
&& props
->die_id
!= slot
->props
.die_id
) {
662 if (props
->has_socket_id
&& props
->socket_id
!= slot
->props
.socket_id
) {
666 /* reject assignment if slot is already assigned, for compatibility
667 * of legacy cpu_index mapping with SPAPR core based mapping do not
668 * error out if cpu thread and matched core have the same node-id */
669 if (slot
->props
.has_node_id
&&
670 slot
->props
.node_id
!= props
->node_id
) {
671 error_setg(errp
, "CPU is already assigned to node-id: %" PRId64
,
672 slot
->props
.node_id
);
676 /* assign slot to node as it's matched '-numa cpu' key */
678 slot
->props
.node_id
= props
->node_id
;
679 slot
->props
.has_node_id
= props
->has_node_id
;
681 if (machine
->numa_state
->hmat_enabled
) {
682 if ((numa_info
[props
->node_id
].initiator
< MAX_NODES
) &&
683 (props
->node_id
!= numa_info
[props
->node_id
].initiator
)) {
684 error_setg(errp
, "The initiator of CPU NUMA node %" PRId64
685 " should be itself", props
->node_id
);
688 numa_info
[props
->node_id
].has_cpu
= true;
689 numa_info
[props
->node_id
].initiator
= props
->node_id
;
694 error_setg(errp
, "no match found");
698 static void smp_parse(MachineState
*ms
, QemuOpts
*opts
)
701 unsigned cpus
= qemu_opt_get_number(opts
, "cpus", 0);
702 unsigned sockets
= qemu_opt_get_number(opts
, "sockets", 0);
703 unsigned cores
= qemu_opt_get_number(opts
, "cores", 0);
704 unsigned threads
= qemu_opt_get_number(opts
, "threads", 0);
706 /* compute missing values, prefer sockets over cores over threads */
707 if (cpus
== 0 || sockets
== 0) {
708 cores
= cores
> 0 ? cores
: 1;
709 threads
= threads
> 0 ? threads
: 1;
711 sockets
= sockets
> 0 ? sockets
: 1;
712 cpus
= cores
* threads
* sockets
;
715 qemu_opt_get_number(opts
, "maxcpus", cpus
);
716 sockets
= ms
->smp
.max_cpus
/ (cores
* threads
);
718 } else if (cores
== 0) {
719 threads
= threads
> 0 ? threads
: 1;
720 cores
= cpus
/ (sockets
* threads
);
721 cores
= cores
> 0 ? cores
: 1;
722 } else if (threads
== 0) {
723 threads
= cpus
/ (cores
* sockets
);
724 threads
= threads
> 0 ? threads
: 1;
725 } else if (sockets
* cores
* threads
< cpus
) {
726 error_report("cpu topology: "
727 "sockets (%u) * cores (%u) * threads (%u) < "
729 sockets
, cores
, threads
, cpus
);
734 qemu_opt_get_number(opts
, "maxcpus", cpus
);
736 if (ms
->smp
.max_cpus
< cpus
) {
737 error_report("maxcpus must be equal to or greater than smp");
741 if (sockets
* cores
* threads
> ms
->smp
.max_cpus
) {
742 error_report("cpu topology: "
743 "sockets (%u) * cores (%u) * threads (%u) > "
745 sockets
, cores
, threads
,
750 if (sockets
* cores
* threads
!= ms
->smp
.max_cpus
) {
751 warn_report("Invalid CPU topology deprecated: "
752 "sockets (%u) * cores (%u) * threads (%u) "
754 sockets
, cores
, threads
,
759 ms
->smp
.cores
= cores
;
760 ms
->smp
.threads
= threads
;
761 ms
->smp
.sockets
= sockets
;
764 if (ms
->smp
.cpus
> 1) {
765 Error
*blocker
= NULL
;
766 error_setg(&blocker
, QERR_REPLAY_NOT_SUPPORTED
, "smp");
767 replay_add_blocker(blocker
);
771 static void machine_class_init(ObjectClass
*oc
, void *data
)
773 MachineClass
*mc
= MACHINE_CLASS(oc
);
775 /* Default 128 MB as guest ram size */
776 mc
->default_ram_size
= 128 * MiB
;
777 mc
->rom_file_has_mr
= true;
778 mc
->smp_parse
= smp_parse
;
780 /* numa node memory size aligned on 8MB by default.
781 * On Linux, each node's border has to be 8MB aligned
783 mc
->numa_mem_align_shift
= 23;
784 mc
->numa_auto_assign_ram
= numa_default_auto_assign_ram
;
786 object_class_property_add_str(oc
, "kernel",
787 machine_get_kernel
, machine_set_kernel
, &error_abort
);
788 object_class_property_set_description(oc
, "kernel",
789 "Linux kernel image file", &error_abort
);
791 object_class_property_add_str(oc
, "initrd",
792 machine_get_initrd
, machine_set_initrd
, &error_abort
);
793 object_class_property_set_description(oc
, "initrd",
794 "Linux initial ramdisk file", &error_abort
);
796 object_class_property_add_str(oc
, "append",
797 machine_get_append
, machine_set_append
, &error_abort
);
798 object_class_property_set_description(oc
, "append",
799 "Linux kernel command line", &error_abort
);
801 object_class_property_add_str(oc
, "dtb",
802 machine_get_dtb
, machine_set_dtb
, &error_abort
);
803 object_class_property_set_description(oc
, "dtb",
804 "Linux kernel device tree file", &error_abort
);
806 object_class_property_add_str(oc
, "dumpdtb",
807 machine_get_dumpdtb
, machine_set_dumpdtb
, &error_abort
);
808 object_class_property_set_description(oc
, "dumpdtb",
809 "Dump current dtb to a file and quit", &error_abort
);
811 object_class_property_add(oc
, "phandle-start", "int",
812 machine_get_phandle_start
, machine_set_phandle_start
,
813 NULL
, NULL
, &error_abort
);
814 object_class_property_set_description(oc
, "phandle-start",
815 "The first phandle ID we may generate dynamically", &error_abort
);
817 object_class_property_add_str(oc
, "dt-compatible",
818 machine_get_dt_compatible
, machine_set_dt_compatible
, &error_abort
);
819 object_class_property_set_description(oc
, "dt-compatible",
820 "Overrides the \"compatible\" property of the dt root node",
823 object_class_property_add_bool(oc
, "dump-guest-core",
824 machine_get_dump_guest_core
, machine_set_dump_guest_core
, &error_abort
);
825 object_class_property_set_description(oc
, "dump-guest-core",
826 "Include guest memory in a core dump", &error_abort
);
828 object_class_property_add_bool(oc
, "mem-merge",
829 machine_get_mem_merge
, machine_set_mem_merge
, &error_abort
);
830 object_class_property_set_description(oc
, "mem-merge",
831 "Enable/disable memory merge support", &error_abort
);
833 object_class_property_add_bool(oc
, "usb",
834 machine_get_usb
, machine_set_usb
, &error_abort
);
835 object_class_property_set_description(oc
, "usb",
836 "Set on/off to enable/disable usb", &error_abort
);
838 object_class_property_add_bool(oc
, "graphics",
839 machine_get_graphics
, machine_set_graphics
, &error_abort
);
840 object_class_property_set_description(oc
, "graphics",
841 "Set on/off to enable/disable graphics emulation", &error_abort
);
843 object_class_property_add_str(oc
, "firmware",
844 machine_get_firmware
, machine_set_firmware
,
846 object_class_property_set_description(oc
, "firmware",
847 "Firmware image", &error_abort
);
849 object_class_property_add_bool(oc
, "suppress-vmdesc",
850 machine_get_suppress_vmdesc
, machine_set_suppress_vmdesc
,
852 object_class_property_set_description(oc
, "suppress-vmdesc",
853 "Set on to disable self-describing migration", &error_abort
);
855 object_class_property_add_bool(oc
, "enforce-config-section",
856 machine_get_enforce_config_section
, machine_set_enforce_config_section
,
858 object_class_property_set_description(oc
, "enforce-config-section",
859 "Set on to enforce configuration section migration", &error_abort
);
861 object_class_property_add_str(oc
, "memory-encryption",
862 machine_get_memory_encryption
, machine_set_memory_encryption
,
864 object_class_property_set_description(oc
, "memory-encryption",
865 "Set memory encryption object to use", &error_abort
);
868 static void machine_class_base_init(ObjectClass
*oc
, void *data
)
870 if (!object_class_is_abstract(oc
)) {
871 MachineClass
*mc
= MACHINE_CLASS(oc
);
872 const char *cname
= object_class_get_name(oc
);
873 assert(g_str_has_suffix(cname
, TYPE_MACHINE_SUFFIX
));
874 mc
->name
= g_strndup(cname
,
875 strlen(cname
) - strlen(TYPE_MACHINE_SUFFIX
));
876 mc
->compat_props
= g_ptr_array_new();
880 static void machine_initfn(Object
*obj
)
882 MachineState
*ms
= MACHINE(obj
);
883 MachineClass
*mc
= MACHINE_GET_CLASS(obj
);
885 ms
->dump_guest_core
= true;
886 ms
->mem_merge
= true;
887 ms
->enable_graphics
= true;
889 if (mc
->nvdimm_supported
) {
890 Object
*obj
= OBJECT(ms
);
892 ms
->nvdimms_state
= g_new0(NVDIMMState
, 1);
893 object_property_add_bool(obj
, "nvdimm",
894 machine_get_nvdimm
, machine_set_nvdimm
,
896 object_property_set_description(obj
, "nvdimm",
897 "Set on/off to enable/disable "
898 "NVDIMM instantiation", NULL
);
900 object_property_add_str(obj
, "nvdimm-persistence",
901 machine_get_nvdimm_persistence
,
902 machine_set_nvdimm_persistence
,
904 object_property_set_description(obj
, "nvdimm-persistence",
905 "Set NVDIMM persistence"
906 "Valid values are cpu, mem-ctrl",
910 if (mc
->cpu_index_to_instance_props
&& mc
->get_default_cpu_node_id
) {
911 ms
->numa_state
= g_new0(NumaState
, 1);
912 object_property_add_bool(obj
, "hmat",
913 machine_get_hmat
, machine_set_hmat
,
915 object_property_set_description(obj
, "hmat",
916 "Set on/off to enable/disable "
917 "ACPI Heterogeneous Memory Attribute "
918 "Table (HMAT)", NULL
);
921 object_property_add_str(obj
, "memory-backend",
922 machine_get_memdev
, machine_set_memdev
,
924 object_property_set_description(obj
, "memory-backend",
926 "Valid value is ID of hostmem based backend",
929 /* Register notifier when init is done for sysbus sanity checks */
930 ms
->sysbus_notifier
.notify
= machine_init_notify
;
931 qemu_add_machine_init_done_notifier(&ms
->sysbus_notifier
);
934 static void machine_finalize(Object
*obj
)
936 MachineState
*ms
= MACHINE(obj
);
938 g_free(ms
->kernel_filename
);
939 g_free(ms
->initrd_filename
);
940 g_free(ms
->kernel_cmdline
);
943 g_free(ms
->dt_compatible
);
944 g_free(ms
->firmware
);
945 g_free(ms
->device_memory
);
946 g_free(ms
->nvdimms_state
);
947 g_free(ms
->numa_state
);
950 bool machine_usb(MachineState
*machine
)
955 int machine_phandle_start(MachineState
*machine
)
957 return machine
->phandle_start
;
960 bool machine_dump_guest_core(MachineState
*machine
)
962 return machine
->dump_guest_core
;
965 bool machine_mem_merge(MachineState
*machine
)
967 return machine
->mem_merge
;
970 static char *cpu_slot_to_string(const CPUArchId
*cpu
)
972 GString
*s
= g_string_new(NULL
);
973 if (cpu
->props
.has_socket_id
) {
974 g_string_append_printf(s
, "socket-id: %"PRId64
, cpu
->props
.socket_id
);
976 if (cpu
->props
.has_die_id
) {
977 g_string_append_printf(s
, "die-id: %"PRId64
, cpu
->props
.die_id
);
979 if (cpu
->props
.has_core_id
) {
981 g_string_append_printf(s
, ", ");
983 g_string_append_printf(s
, "core-id: %"PRId64
, cpu
->props
.core_id
);
985 if (cpu
->props
.has_thread_id
) {
987 g_string_append_printf(s
, ", ");
989 g_string_append_printf(s
, "thread-id: %"PRId64
, cpu
->props
.thread_id
);
991 return g_string_free(s
, false);
994 static void numa_validate_initiator(NumaState
*numa_state
)
997 NodeInfo
*numa_info
= numa_state
->nodes
;
999 for (i
= 0; i
< numa_state
->num_nodes
; i
++) {
1000 if (numa_info
[i
].initiator
== MAX_NODES
) {
1001 error_report("The initiator of NUMA node %d is missing, use "
1002 "'-numa node,initiator' option to declare it", i
);
1006 if (!numa_info
[numa_info
[i
].initiator
].present
) {
1007 error_report("NUMA node %" PRIu16
" is missing, use "
1008 "'-numa node' option to declare it first",
1009 numa_info
[i
].initiator
);
1013 if (!numa_info
[numa_info
[i
].initiator
].has_cpu
) {
1014 error_report("The initiator of NUMA node %d is invalid", i
);
1020 static void machine_numa_finish_cpu_init(MachineState
*machine
)
1023 bool default_mapping
;
1024 GString
*s
= g_string_new(NULL
);
1025 MachineClass
*mc
= MACHINE_GET_CLASS(machine
);
1026 const CPUArchIdList
*possible_cpus
= mc
->possible_cpu_arch_ids(machine
);
1028 assert(machine
->numa_state
->num_nodes
);
1029 for (i
= 0; i
< possible_cpus
->len
; i
++) {
1030 if (possible_cpus
->cpus
[i
].props
.has_node_id
) {
1034 default_mapping
= (i
== possible_cpus
->len
);
1036 for (i
= 0; i
< possible_cpus
->len
; i
++) {
1037 const CPUArchId
*cpu_slot
= &possible_cpus
->cpus
[i
];
1039 if (!cpu_slot
->props
.has_node_id
) {
1040 /* fetch default mapping from board and enable it */
1041 CpuInstanceProperties props
= cpu_slot
->props
;
1043 props
.node_id
= mc
->get_default_cpu_node_id(machine
, i
);
1044 if (!default_mapping
) {
1045 /* record slots with not set mapping,
1046 * TODO: make it hard error in future */
1047 char *cpu_str
= cpu_slot_to_string(cpu_slot
);
1048 g_string_append_printf(s
, "%sCPU %d [%s]",
1049 s
->len
? ", " : "", i
, cpu_str
);
1052 /* non mapped cpus used to fallback to node 0 */
1056 props
.has_node_id
= true;
1057 machine_set_cpu_numa_node(machine
, &props
, &error_fatal
);
1061 if (machine
->numa_state
->hmat_enabled
) {
1062 numa_validate_initiator(machine
->numa_state
);
1065 if (s
->len
&& !qtest_enabled()) {
1066 warn_report("CPU(s) not present in any NUMA nodes: %s",
1068 warn_report("All CPU(s) up to maxcpus should be described "
1069 "in NUMA config, ability to start up with partial NUMA "
1070 "mappings is obsoleted and will be removed in future");
1072 g_string_free(s
, true);
1075 MemoryRegion
*machine_consume_memdev(MachineState
*machine
,
1076 HostMemoryBackend
*backend
)
1078 MemoryRegion
*ret
= host_memory_backend_get_memory(backend
);
1080 if (memory_region_is_mapped(ret
)) {
1081 char *path
= object_get_canonical_path_component(OBJECT(backend
));
1082 error_report("memory backend %s can't be used multiple times.", path
);
1086 host_memory_backend_set_mapped(backend
, true);
1087 vmstate_register_ram_global(ret
);
1091 void machine_run_board_init(MachineState
*machine
)
1093 MachineClass
*machine_class
= MACHINE_GET_CLASS(machine
);
1095 if (machine
->ram_memdev_id
) {
1097 o
= object_resolve_path_type(machine
->ram_memdev_id
,
1098 TYPE_MEMORY_BACKEND
, NULL
);
1099 machine
->ram
= machine_consume_memdev(machine
, MEMORY_BACKEND(o
));
1102 if (machine
->numa_state
) {
1103 numa_complete_configuration(machine
);
1104 if (machine
->numa_state
->num_nodes
) {
1105 machine_numa_finish_cpu_init(machine
);
1109 /* If the machine supports the valid_cpu_types check and the user
1110 * specified a CPU with -cpu check here that the user CPU is supported.
1112 if (machine_class
->valid_cpu_types
&& machine
->cpu_type
) {
1113 ObjectClass
*class = object_class_by_name(machine
->cpu_type
);
1116 for (i
= 0; machine_class
->valid_cpu_types
[i
]; i
++) {
1117 if (object_class_dynamic_cast(class,
1118 machine_class
->valid_cpu_types
[i
])) {
1119 /* The user specificed CPU is in the valid field, we are
1126 if (!machine_class
->valid_cpu_types
[i
]) {
1127 /* The user specified CPU is not valid */
1128 error_report("Invalid CPU type: %s", machine
->cpu_type
);
1129 error_printf("The valid types are: %s",
1130 machine_class
->valid_cpu_types
[0]);
1131 for (i
= 1; machine_class
->valid_cpu_types
[i
]; i
++) {
1132 error_printf(", %s", machine_class
->valid_cpu_types
[i
]);
1140 machine_class
->init(machine
);
1143 static const TypeInfo machine_info
= {
1144 .name
= TYPE_MACHINE
,
1145 .parent
= TYPE_OBJECT
,
1147 .class_size
= sizeof(MachineClass
),
1148 .class_init
= machine_class_init
,
1149 .class_base_init
= machine_class_base_init
,
1150 .instance_size
= sizeof(MachineState
),
1151 .instance_init
= machine_initfn
,
1152 .instance_finalize
= machine_finalize
,
1155 static void machine_register_types(void)
1157 type_register_static(&machine_info
);
1160 type_init(machine_register_types
)