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-blk", "num-queues", "1"},
34 { "vhost-user-scsi", "num_queues", "1"},
35 { "virtio-blk-device", "num-queues", "1"},
36 { "virtio-scsi-device", "num_queues", "1"},
37 { "nvme", "use-intel-id", "on"},
38 { "pvpanic", "events", "1"}, /* PVPANIC_PANICKED */
40 const size_t hw_compat_5_1_len
= G_N_ELEMENTS(hw_compat_5_1
);
42 GlobalProperty hw_compat_5_0
[] = {
43 { "pci-host-bridge", "x-config-reg-migration-enabled", "off" },
44 { "virtio-balloon-device", "page-poison", "false" },
45 { "vmport", "x-read-set-eax", "off" },
46 { "vmport", "x-signal-unsupported-cmd", "off" },
47 { "vmport", "x-report-vmx-type", "off" },
48 { "vmport", "x-cmds-v2", "off" },
49 { "virtio-device", "x-disable-legacy-check", "true" },
51 const size_t hw_compat_5_0_len
= G_N_ELEMENTS(hw_compat_5_0
);
53 GlobalProperty hw_compat_4_2
[] = {
54 { "virtio-blk-device", "queue-size", "128"},
55 { "virtio-scsi-device", "virtqueue_size", "128"},
56 { "virtio-blk-device", "x-enable-wce-if-config-wce", "off" },
57 { "virtio-blk-device", "seg-max-adjust", "off"},
58 { "virtio-scsi-device", "seg_max_adjust", "off"},
59 { "vhost-blk-device", "seg_max_adjust", "off"},
60 { "usb-host", "suppress-remote-wake", "off" },
61 { "usb-redir", "suppress-remote-wake", "off" },
62 { "qxl", "revision", "4" },
63 { "qxl-vga", "revision", "4" },
64 { "fw_cfg", "acpi-mr-restore", "false" },
66 const size_t hw_compat_4_2_len
= G_N_ELEMENTS(hw_compat_4_2
);
68 GlobalProperty hw_compat_4_1
[] = {
69 { "virtio-pci", "x-pcie-flr-init", "off" },
70 { "virtio-device", "use-disabled-flag", "false" },
72 const size_t hw_compat_4_1_len
= G_N_ELEMENTS(hw_compat_4_1
);
74 GlobalProperty hw_compat_4_0
[] = {
75 { "VGA", "edid", "false" },
76 { "secondary-vga", "edid", "false" },
77 { "bochs-display", "edid", "false" },
78 { "virtio-vga", "edid", "false" },
79 { "virtio-gpu-device", "edid", "false" },
80 { "virtio-device", "use-started", "false" },
81 { "virtio-balloon-device", "qemu-4-0-config-size", "true" },
82 { "pl031", "migrate-tick-offset", "false" },
84 const size_t hw_compat_4_0_len
= G_N_ELEMENTS(hw_compat_4_0
);
86 GlobalProperty hw_compat_3_1
[] = {
87 { "pcie-root-port", "x-speed", "2_5" },
88 { "pcie-root-port", "x-width", "1" },
89 { "memory-backend-file", "x-use-canonical-path-for-ramblock-id", "true" },
90 { "memory-backend-memfd", "x-use-canonical-path-for-ramblock-id", "true" },
91 { "tpm-crb", "ppi", "false" },
92 { "tpm-tis", "ppi", "false" },
93 { "usb-kbd", "serial", "42" },
94 { "usb-mouse", "serial", "42" },
95 { "usb-tablet", "serial", "42" },
96 { "virtio-blk-device", "discard", "false" },
97 { "virtio-blk-device", "write-zeroes", "false" },
98 { "virtio-balloon-device", "qemu-4-0-config-size", "false" },
99 { "pcie-root-port-base", "disable-acs", "true" }, /* Added in 4.1 */
101 const size_t hw_compat_3_1_len
= G_N_ELEMENTS(hw_compat_3_1
);
103 GlobalProperty hw_compat_3_0
[] = {};
104 const size_t hw_compat_3_0_len
= G_N_ELEMENTS(hw_compat_3_0
);
106 GlobalProperty hw_compat_2_12
[] = {
107 { "migration", "decompress-error-check", "off" },
108 { "hda-audio", "use-timer", "false" },
109 { "cirrus-vga", "global-vmstate", "true" },
110 { "VGA", "global-vmstate", "true" },
111 { "vmware-svga", "global-vmstate", "true" },
112 { "qxl-vga", "global-vmstate", "true" },
114 const size_t hw_compat_2_12_len
= G_N_ELEMENTS(hw_compat_2_12
);
116 GlobalProperty hw_compat_2_11
[] = {
117 { "hpet", "hpet-offset-saved", "false" },
118 { "virtio-blk-pci", "vectors", "2" },
119 { "vhost-user-blk-pci", "vectors", "2" },
120 { "e1000", "migrate_tso_props", "off" },
122 const size_t hw_compat_2_11_len
= G_N_ELEMENTS(hw_compat_2_11
);
124 GlobalProperty hw_compat_2_10
[] = {
125 { "virtio-mouse-device", "wheel-axis", "false" },
126 { "virtio-tablet-device", "wheel-axis", "false" },
128 const size_t hw_compat_2_10_len
= G_N_ELEMENTS(hw_compat_2_10
);
130 GlobalProperty hw_compat_2_9
[] = {
131 { "pci-bridge", "shpc", "off" },
132 { "intel-iommu", "pt", "off" },
133 { "virtio-net-device", "x-mtu-bypass-backend", "off" },
134 { "pcie-root-port", "x-migrate-msix", "false" },
136 const size_t hw_compat_2_9_len
= G_N_ELEMENTS(hw_compat_2_9
);
138 GlobalProperty hw_compat_2_8
[] = {
139 { "fw_cfg_mem", "x-file-slots", "0x10" },
140 { "fw_cfg_io", "x-file-slots", "0x10" },
141 { "pflash_cfi01", "old-multiple-chip-handling", "on" },
142 { "pci-bridge", "shpc", "on" },
143 { TYPE_PCI_DEVICE
, "x-pcie-extcap-init", "off" },
144 { "virtio-pci", "x-pcie-deverr-init", "off" },
145 { "virtio-pci", "x-pcie-lnkctl-init", "off" },
146 { "virtio-pci", "x-pcie-pm-init", "off" },
147 { "cirrus-vga", "vgamem_mb", "8" },
148 { "isa-cirrus-vga", "vgamem_mb", "8" },
150 const size_t hw_compat_2_8_len
= G_N_ELEMENTS(hw_compat_2_8
);
152 GlobalProperty hw_compat_2_7
[] = {
153 { "virtio-pci", "page-per-vq", "on" },
154 { "virtio-serial-device", "emergency-write", "off" },
155 { "ioapic", "version", "0x11" },
156 { "intel-iommu", "x-buggy-eim", "true" },
157 { "virtio-pci", "x-ignore-backend-features", "on" },
159 const size_t hw_compat_2_7_len
= G_N_ELEMENTS(hw_compat_2_7
);
161 GlobalProperty hw_compat_2_6
[] = {
162 { "virtio-mmio", "format_transport_address", "off" },
163 /* Optional because not all virtio-pci devices support legacy mode */
164 { "virtio-pci", "disable-modern", "on", .optional
= true },
165 { "virtio-pci", "disable-legacy", "off", .optional
= true },
167 const size_t hw_compat_2_6_len
= G_N_ELEMENTS(hw_compat_2_6
);
169 GlobalProperty hw_compat_2_5
[] = {
170 { "isa-fdc", "fallback", "144" },
171 { "pvscsi", "x-old-pci-configuration", "on" },
172 { "pvscsi", "x-disable-pcie", "on" },
173 { "vmxnet3", "x-old-msi-offsets", "on" },
174 { "vmxnet3", "x-disable-pcie", "on" },
176 const size_t hw_compat_2_5_len
= G_N_ELEMENTS(hw_compat_2_5
);
178 GlobalProperty hw_compat_2_4
[] = {
179 /* Optional because the 'scsi' property is Linux-only */
180 { "virtio-blk-device", "scsi", "true", .optional
= true },
181 { "e1000", "extra_mac_registers", "off" },
182 { "virtio-pci", "x-disable-pcie", "on" },
183 { "virtio-pci", "migrate-extra", "off" },
184 { "fw_cfg_mem", "dma_enabled", "off" },
185 { "fw_cfg_io", "dma_enabled", "off" }
187 const size_t hw_compat_2_4_len
= G_N_ELEMENTS(hw_compat_2_4
);
189 GlobalProperty hw_compat_2_3
[] = {
190 { "virtio-blk-pci", "any_layout", "off" },
191 { "virtio-balloon-pci", "any_layout", "off" },
192 { "virtio-serial-pci", "any_layout", "off" },
193 { "virtio-9p-pci", "any_layout", "off" },
194 { "virtio-rng-pci", "any_layout", "off" },
195 { TYPE_PCI_DEVICE
, "x-pcie-lnksta-dllla", "off" },
196 { "migration", "send-configuration", "off" },
197 { "migration", "send-section-footer", "off" },
198 { "migration", "store-global-state", "off" },
200 const size_t hw_compat_2_3_len
= G_N_ELEMENTS(hw_compat_2_3
);
202 GlobalProperty hw_compat_2_2
[] = {};
203 const size_t hw_compat_2_2_len
= G_N_ELEMENTS(hw_compat_2_2
);
205 GlobalProperty hw_compat_2_1
[] = {
206 { "intel-hda", "old_msi_addr", "on" },
207 { "VGA", "qemu-extended-regs", "off" },
208 { "secondary-vga", "qemu-extended-regs", "off" },
209 { "virtio-scsi-pci", "any_layout", "off" },
210 { "usb-mouse", "usb_version", "1" },
211 { "usb-kbd", "usb_version", "1" },
212 { "virtio-pci", "virtio-pci-bus-master-bug-migration", "on" },
214 const size_t hw_compat_2_1_len
= G_N_ELEMENTS(hw_compat_2_1
);
216 static char *machine_get_kernel(Object
*obj
, Error
**errp
)
218 MachineState
*ms
= MACHINE(obj
);
220 return g_strdup(ms
->kernel_filename
);
223 static void machine_set_kernel(Object
*obj
, const char *value
, Error
**errp
)
225 MachineState
*ms
= MACHINE(obj
);
227 g_free(ms
->kernel_filename
);
228 ms
->kernel_filename
= g_strdup(value
);
231 static char *machine_get_initrd(Object
*obj
, Error
**errp
)
233 MachineState
*ms
= MACHINE(obj
);
235 return g_strdup(ms
->initrd_filename
);
238 static void machine_set_initrd(Object
*obj
, const char *value
, Error
**errp
)
240 MachineState
*ms
= MACHINE(obj
);
242 g_free(ms
->initrd_filename
);
243 ms
->initrd_filename
= g_strdup(value
);
246 static char *machine_get_append(Object
*obj
, Error
**errp
)
248 MachineState
*ms
= MACHINE(obj
);
250 return g_strdup(ms
->kernel_cmdline
);
253 static void machine_set_append(Object
*obj
, const char *value
, Error
**errp
)
255 MachineState
*ms
= MACHINE(obj
);
257 g_free(ms
->kernel_cmdline
);
258 ms
->kernel_cmdline
= g_strdup(value
);
261 static char *machine_get_dtb(Object
*obj
, Error
**errp
)
263 MachineState
*ms
= MACHINE(obj
);
265 return g_strdup(ms
->dtb
);
268 static void machine_set_dtb(Object
*obj
, const char *value
, Error
**errp
)
270 MachineState
*ms
= MACHINE(obj
);
273 ms
->dtb
= g_strdup(value
);
276 static char *machine_get_dumpdtb(Object
*obj
, Error
**errp
)
278 MachineState
*ms
= MACHINE(obj
);
280 return g_strdup(ms
->dumpdtb
);
283 static void machine_set_dumpdtb(Object
*obj
, const char *value
, Error
**errp
)
285 MachineState
*ms
= MACHINE(obj
);
288 ms
->dumpdtb
= g_strdup(value
);
291 static void machine_get_phandle_start(Object
*obj
, Visitor
*v
,
292 const char *name
, void *opaque
,
295 MachineState
*ms
= MACHINE(obj
);
296 int64_t value
= ms
->phandle_start
;
298 visit_type_int(v
, name
, &value
, errp
);
301 static void machine_set_phandle_start(Object
*obj
, Visitor
*v
,
302 const char *name
, void *opaque
,
305 MachineState
*ms
= MACHINE(obj
);
308 if (!visit_type_int(v
, name
, &value
, errp
)) {
312 ms
->phandle_start
= value
;
315 static char *machine_get_dt_compatible(Object
*obj
, Error
**errp
)
317 MachineState
*ms
= MACHINE(obj
);
319 return g_strdup(ms
->dt_compatible
);
322 static void machine_set_dt_compatible(Object
*obj
, const char *value
, Error
**errp
)
324 MachineState
*ms
= MACHINE(obj
);
326 g_free(ms
->dt_compatible
);
327 ms
->dt_compatible
= g_strdup(value
);
330 static bool machine_get_dump_guest_core(Object
*obj
, Error
**errp
)
332 MachineState
*ms
= MACHINE(obj
);
334 return ms
->dump_guest_core
;
337 static void machine_set_dump_guest_core(Object
*obj
, bool value
, Error
**errp
)
339 MachineState
*ms
= MACHINE(obj
);
341 ms
->dump_guest_core
= value
;
344 static bool machine_get_mem_merge(Object
*obj
, Error
**errp
)
346 MachineState
*ms
= MACHINE(obj
);
348 return ms
->mem_merge
;
351 static void machine_set_mem_merge(Object
*obj
, bool value
, Error
**errp
)
353 MachineState
*ms
= MACHINE(obj
);
355 ms
->mem_merge
= value
;
358 static bool machine_get_usb(Object
*obj
, Error
**errp
)
360 MachineState
*ms
= MACHINE(obj
);
365 static void machine_set_usb(Object
*obj
, bool value
, Error
**errp
)
367 MachineState
*ms
= MACHINE(obj
);
370 ms
->usb_disabled
= !value
;
373 static bool machine_get_graphics(Object
*obj
, Error
**errp
)
375 MachineState
*ms
= MACHINE(obj
);
377 return ms
->enable_graphics
;
380 static void machine_set_graphics(Object
*obj
, bool value
, Error
**errp
)
382 MachineState
*ms
= MACHINE(obj
);
384 ms
->enable_graphics
= value
;
387 static char *machine_get_firmware(Object
*obj
, Error
**errp
)
389 MachineState
*ms
= MACHINE(obj
);
391 return g_strdup(ms
->firmware
);
394 static void machine_set_firmware(Object
*obj
, const char *value
, Error
**errp
)
396 MachineState
*ms
= MACHINE(obj
);
398 g_free(ms
->firmware
);
399 ms
->firmware
= g_strdup(value
);
402 static void machine_set_suppress_vmdesc(Object
*obj
, bool value
, Error
**errp
)
404 MachineState
*ms
= MACHINE(obj
);
406 ms
->suppress_vmdesc
= value
;
409 static bool machine_get_suppress_vmdesc(Object
*obj
, Error
**errp
)
411 MachineState
*ms
= MACHINE(obj
);
413 return ms
->suppress_vmdesc
;
416 static char *machine_get_memory_encryption(Object
*obj
, Error
**errp
)
418 MachineState
*ms
= MACHINE(obj
);
420 return g_strdup(ms
->memory_encryption
);
423 static void machine_set_memory_encryption(Object
*obj
, const char *value
,
426 MachineState
*ms
= MACHINE(obj
);
428 g_free(ms
->memory_encryption
);
429 ms
->memory_encryption
= g_strdup(value
);
432 * With memory encryption, the host can't see the real contents of RAM,
433 * so there's no point in it trying to merge areas.
436 machine_set_mem_merge(obj
, false, errp
);
440 static bool machine_get_nvdimm(Object
*obj
, Error
**errp
)
442 MachineState
*ms
= MACHINE(obj
);
444 return ms
->nvdimms_state
->is_enabled
;
447 static void machine_set_nvdimm(Object
*obj
, bool value
, Error
**errp
)
449 MachineState
*ms
= MACHINE(obj
);
451 ms
->nvdimms_state
->is_enabled
= value
;
454 static bool machine_get_hmat(Object
*obj
, Error
**errp
)
456 MachineState
*ms
= MACHINE(obj
);
458 return ms
->numa_state
->hmat_enabled
;
461 static void machine_set_hmat(Object
*obj
, bool value
, Error
**errp
)
463 MachineState
*ms
= MACHINE(obj
);
465 ms
->numa_state
->hmat_enabled
= value
;
468 static char *machine_get_nvdimm_persistence(Object
*obj
, Error
**errp
)
470 MachineState
*ms
= MACHINE(obj
);
472 return g_strdup(ms
->nvdimms_state
->persistence_string
);
475 static void machine_set_nvdimm_persistence(Object
*obj
, const char *value
,
478 MachineState
*ms
= MACHINE(obj
);
479 NVDIMMState
*nvdimms_state
= ms
->nvdimms_state
;
481 if (strcmp(value
, "cpu") == 0) {
482 nvdimms_state
->persistence
= 3;
483 } else if (strcmp(value
, "mem-ctrl") == 0) {
484 nvdimms_state
->persistence
= 2;
486 error_setg(errp
, "-machine nvdimm-persistence=%s: unsupported option",
491 g_free(nvdimms_state
->persistence_string
);
492 nvdimms_state
->persistence_string
= g_strdup(value
);
495 void machine_class_allow_dynamic_sysbus_dev(MachineClass
*mc
, const char *type
)
497 strList
*item
= g_new0(strList
, 1);
499 item
->value
= g_strdup(type
);
500 item
->next
= mc
->allowed_dynamic_sysbus_devices
;
501 mc
->allowed_dynamic_sysbus_devices
= item
;
504 static void validate_sysbus_device(SysBusDevice
*sbdev
, void *opaque
)
506 MachineState
*machine
= opaque
;
507 MachineClass
*mc
= MACHINE_GET_CLASS(machine
);
508 bool allowed
= false;
511 for (wl
= mc
->allowed_dynamic_sysbus_devices
;
514 allowed
|= !!object_dynamic_cast(OBJECT(sbdev
), wl
->value
);
518 error_report("Option '-device %s' cannot be handled by this machine",
519 object_class_get_name(object_get_class(OBJECT(sbdev
))));
524 static char *machine_get_memdev(Object
*obj
, Error
**errp
)
526 MachineState
*ms
= MACHINE(obj
);
528 return g_strdup(ms
->ram_memdev_id
);
531 static void machine_set_memdev(Object
*obj
, const char *value
, Error
**errp
)
533 MachineState
*ms
= MACHINE(obj
);
535 g_free(ms
->ram_memdev_id
);
536 ms
->ram_memdev_id
= g_strdup(value
);
540 static void machine_init_notify(Notifier
*notifier
, void *data
)
542 MachineState
*machine
= MACHINE(qdev_get_machine());
545 * Loop through all dynamically created sysbus devices and check if they are
546 * all allowed. If a device is not allowed, error out.
548 foreach_dynamic_sysbus_device(validate_sysbus_device
, machine
);
551 HotpluggableCPUList
*machine_query_hotpluggable_cpus(MachineState
*machine
)
554 HotpluggableCPUList
*head
= NULL
;
555 MachineClass
*mc
= MACHINE_GET_CLASS(machine
);
557 /* force board to initialize possible_cpus if it hasn't been done yet */
558 mc
->possible_cpu_arch_ids(machine
);
560 for (i
= 0; i
< machine
->possible_cpus
->len
; i
++) {
562 HotpluggableCPUList
*list_item
= g_new0(typeof(*list_item
), 1);
563 HotpluggableCPU
*cpu_item
= g_new0(typeof(*cpu_item
), 1);
565 cpu_item
->type
= g_strdup(machine
->possible_cpus
->cpus
[i
].type
);
566 cpu_item
->vcpus_count
= machine
->possible_cpus
->cpus
[i
].vcpus_count
;
567 cpu_item
->props
= g_memdup(&machine
->possible_cpus
->cpus
[i
].props
,
568 sizeof(*cpu_item
->props
));
570 cpu
= machine
->possible_cpus
->cpus
[i
].cpu
;
572 cpu_item
->has_qom_path
= true;
573 cpu_item
->qom_path
= object_get_canonical_path(cpu
);
575 list_item
->value
= cpu_item
;
576 list_item
->next
= head
;
583 * machine_set_cpu_numa_node:
584 * @machine: machine object to modify
585 * @props: specifies which cpu objects to assign to
586 * numa node specified by @props.node_id
587 * @errp: if an error occurs, a pointer to an area to store the error
589 * Associate NUMA node specified by @props.node_id with cpu slots that
590 * match socket/core/thread-ids specified by @props. It's recommended to use
591 * query-hotpluggable-cpus.props values to specify affected cpu slots,
592 * which would lead to exact 1:1 mapping of cpu slots to NUMA node.
594 * However for CLI convenience it's possible to pass in subset of properties,
595 * which would affect all cpu slots that match it.
597 * -smp 4,cores=2,sockets=2 -numa node,nodeid=0 -numa node,nodeid=1 \
598 * -numa cpu,node-id=0,socket_id=0 \
599 * -numa cpu,node-id=1,socket_id=1
600 * will assign all child cores of socket 0 to node 0 and
601 * of socket 1 to node 1.
603 * On attempt of reassigning (already assigned) cpu slot to another NUMA node,
605 * Empty subset is disallowed and function will return with error in this case.
607 void machine_set_cpu_numa_node(MachineState
*machine
,
608 const CpuInstanceProperties
*props
, Error
**errp
)
610 MachineClass
*mc
= MACHINE_GET_CLASS(machine
);
611 NodeInfo
*numa_info
= machine
->numa_state
->nodes
;
615 if (!mc
->possible_cpu_arch_ids
) {
616 error_setg(errp
, "mapping of CPUs to NUMA node is not supported");
620 /* disabling node mapping is not supported, forbid it */
621 assert(props
->has_node_id
);
623 /* force board to initialize possible_cpus if it hasn't been done yet */
624 mc
->possible_cpu_arch_ids(machine
);
626 for (i
= 0; i
< machine
->possible_cpus
->len
; i
++) {
627 CPUArchId
*slot
= &machine
->possible_cpus
->cpus
[i
];
629 /* reject unsupported by board properties */
630 if (props
->has_thread_id
&& !slot
->props
.has_thread_id
) {
631 error_setg(errp
, "thread-id is not supported");
635 if (props
->has_core_id
&& !slot
->props
.has_core_id
) {
636 error_setg(errp
, "core-id is not supported");
640 if (props
->has_socket_id
&& !slot
->props
.has_socket_id
) {
641 error_setg(errp
, "socket-id is not supported");
645 if (props
->has_die_id
&& !slot
->props
.has_die_id
) {
646 error_setg(errp
, "die-id is not supported");
650 /* skip slots with explicit mismatch */
651 if (props
->has_thread_id
&& props
->thread_id
!= slot
->props
.thread_id
) {
655 if (props
->has_core_id
&& props
->core_id
!= slot
->props
.core_id
) {
659 if (props
->has_die_id
&& props
->die_id
!= slot
->props
.die_id
) {
663 if (props
->has_socket_id
&& props
->socket_id
!= slot
->props
.socket_id
) {
667 /* reject assignment if slot is already assigned, for compatibility
668 * of legacy cpu_index mapping with SPAPR core based mapping do not
669 * error out if cpu thread and matched core have the same node-id */
670 if (slot
->props
.has_node_id
&&
671 slot
->props
.node_id
!= props
->node_id
) {
672 error_setg(errp
, "CPU is already assigned to node-id: %" PRId64
,
673 slot
->props
.node_id
);
677 /* assign slot to node as it's matched '-numa cpu' key */
679 slot
->props
.node_id
= props
->node_id
;
680 slot
->props
.has_node_id
= props
->has_node_id
;
682 if (machine
->numa_state
->hmat_enabled
) {
683 if ((numa_info
[props
->node_id
].initiator
< MAX_NODES
) &&
684 (props
->node_id
!= numa_info
[props
->node_id
].initiator
)) {
685 error_setg(errp
, "The initiator of CPU NUMA node %" PRId64
686 " should be itself", props
->node_id
);
689 numa_info
[props
->node_id
].has_cpu
= true;
690 numa_info
[props
->node_id
].initiator
= props
->node_id
;
695 error_setg(errp
, "no match found");
699 static void smp_parse(MachineState
*ms
, QemuOpts
*opts
)
702 unsigned cpus
= qemu_opt_get_number(opts
, "cpus", 0);
703 unsigned sockets
= qemu_opt_get_number(opts
, "sockets", 0);
704 unsigned cores
= qemu_opt_get_number(opts
, "cores", 0);
705 unsigned threads
= qemu_opt_get_number(opts
, "threads", 0);
707 /* compute missing values, prefer sockets over cores over threads */
708 if (cpus
== 0 || sockets
== 0) {
709 cores
= cores
> 0 ? cores
: 1;
710 threads
= threads
> 0 ? threads
: 1;
712 sockets
= sockets
> 0 ? sockets
: 1;
713 cpus
= cores
* threads
* sockets
;
716 qemu_opt_get_number(opts
, "maxcpus", cpus
);
717 sockets
= ms
->smp
.max_cpus
/ (cores
* threads
);
719 } else if (cores
== 0) {
720 threads
= threads
> 0 ? threads
: 1;
721 cores
= cpus
/ (sockets
* threads
);
722 cores
= cores
> 0 ? cores
: 1;
723 } else if (threads
== 0) {
724 threads
= cpus
/ (cores
* sockets
);
725 threads
= threads
> 0 ? threads
: 1;
726 } else if (sockets
* cores
* threads
< cpus
) {
727 error_report("cpu topology: "
728 "sockets (%u) * cores (%u) * threads (%u) < "
730 sockets
, cores
, threads
, cpus
);
735 qemu_opt_get_number(opts
, "maxcpus", cpus
);
737 if (ms
->smp
.max_cpus
< cpus
) {
738 error_report("maxcpus must be equal to or greater than smp");
742 if (sockets
* cores
* threads
!= ms
->smp
.max_cpus
) {
743 error_report("Invalid CPU topology: "
744 "sockets (%u) * cores (%u) * threads (%u) "
746 sockets
, cores
, threads
,
752 ms
->smp
.cores
= cores
;
753 ms
->smp
.threads
= threads
;
754 ms
->smp
.sockets
= sockets
;
757 if (ms
->smp
.cpus
> 1) {
758 Error
*blocker
= NULL
;
759 error_setg(&blocker
, QERR_REPLAY_NOT_SUPPORTED
, "smp");
760 replay_add_blocker(blocker
);
764 static void machine_class_init(ObjectClass
*oc
, void *data
)
766 MachineClass
*mc
= MACHINE_CLASS(oc
);
768 /* Default 128 MB as guest ram size */
769 mc
->default_ram_size
= 128 * MiB
;
770 mc
->rom_file_has_mr
= true;
771 mc
->smp_parse
= smp_parse
;
773 /* numa node memory size aligned on 8MB by default.
774 * On Linux, each node's border has to be 8MB aligned
776 mc
->numa_mem_align_shift
= 23;
778 object_class_property_add_str(oc
, "kernel",
779 machine_get_kernel
, machine_set_kernel
);
780 object_class_property_set_description(oc
, "kernel",
781 "Linux kernel image file");
783 object_class_property_add_str(oc
, "initrd",
784 machine_get_initrd
, machine_set_initrd
);
785 object_class_property_set_description(oc
, "initrd",
786 "Linux initial ramdisk file");
788 object_class_property_add_str(oc
, "append",
789 machine_get_append
, machine_set_append
);
790 object_class_property_set_description(oc
, "append",
791 "Linux kernel command line");
793 object_class_property_add_str(oc
, "dtb",
794 machine_get_dtb
, machine_set_dtb
);
795 object_class_property_set_description(oc
, "dtb",
796 "Linux kernel device tree file");
798 object_class_property_add_str(oc
, "dumpdtb",
799 machine_get_dumpdtb
, machine_set_dumpdtb
);
800 object_class_property_set_description(oc
, "dumpdtb",
801 "Dump current dtb to a file and quit");
803 object_class_property_add(oc
, "phandle-start", "int",
804 machine_get_phandle_start
, machine_set_phandle_start
,
806 object_class_property_set_description(oc
, "phandle-start",
807 "The first phandle ID we may generate dynamically");
809 object_class_property_add_str(oc
, "dt-compatible",
810 machine_get_dt_compatible
, machine_set_dt_compatible
);
811 object_class_property_set_description(oc
, "dt-compatible",
812 "Overrides the \"compatible\" property of the dt root node");
814 object_class_property_add_bool(oc
, "dump-guest-core",
815 machine_get_dump_guest_core
, machine_set_dump_guest_core
);
816 object_class_property_set_description(oc
, "dump-guest-core",
817 "Include guest memory in a core dump");
819 object_class_property_add_bool(oc
, "mem-merge",
820 machine_get_mem_merge
, machine_set_mem_merge
);
821 object_class_property_set_description(oc
, "mem-merge",
822 "Enable/disable memory merge support");
824 object_class_property_add_bool(oc
, "usb",
825 machine_get_usb
, machine_set_usb
);
826 object_class_property_set_description(oc
, "usb",
827 "Set on/off to enable/disable usb");
829 object_class_property_add_bool(oc
, "graphics",
830 machine_get_graphics
, machine_set_graphics
);
831 object_class_property_set_description(oc
, "graphics",
832 "Set on/off to enable/disable graphics emulation");
834 object_class_property_add_str(oc
, "firmware",
835 machine_get_firmware
, machine_set_firmware
);
836 object_class_property_set_description(oc
, "firmware",
839 object_class_property_add_bool(oc
, "suppress-vmdesc",
840 machine_get_suppress_vmdesc
, machine_set_suppress_vmdesc
);
841 object_class_property_set_description(oc
, "suppress-vmdesc",
842 "Set on to disable self-describing migration");
844 object_class_property_add_str(oc
, "memory-encryption",
845 machine_get_memory_encryption
, machine_set_memory_encryption
);
846 object_class_property_set_description(oc
, "memory-encryption",
847 "Set memory encryption object to use");
849 object_class_property_add_str(oc
, "memory-backend",
850 machine_get_memdev
, machine_set_memdev
);
851 object_class_property_set_description(oc
, "memory-backend",
853 "Valid value is ID of hostmem based backend");
856 static void machine_class_base_init(ObjectClass
*oc
, void *data
)
858 MachineClass
*mc
= MACHINE_CLASS(oc
);
859 mc
->max_cpus
= mc
->max_cpus
?: 1;
860 mc
->min_cpus
= mc
->min_cpus
?: 1;
861 mc
->default_cpus
= mc
->default_cpus
?: 1;
863 if (!object_class_is_abstract(oc
)) {
864 const char *cname
= object_class_get_name(oc
);
865 assert(g_str_has_suffix(cname
, TYPE_MACHINE_SUFFIX
));
866 mc
->name
= g_strndup(cname
,
867 strlen(cname
) - strlen(TYPE_MACHINE_SUFFIX
));
868 mc
->compat_props
= g_ptr_array_new();
872 static void machine_initfn(Object
*obj
)
874 MachineState
*ms
= MACHINE(obj
);
875 MachineClass
*mc
= MACHINE_GET_CLASS(obj
);
877 ms
->dump_guest_core
= true;
878 ms
->mem_merge
= true;
879 ms
->enable_graphics
= true;
881 if (mc
->nvdimm_supported
) {
882 Object
*obj
= OBJECT(ms
);
884 ms
->nvdimms_state
= g_new0(NVDIMMState
, 1);
885 object_property_add_bool(obj
, "nvdimm",
886 machine_get_nvdimm
, machine_set_nvdimm
);
887 object_property_set_description(obj
, "nvdimm",
888 "Set on/off to enable/disable "
889 "NVDIMM instantiation");
891 object_property_add_str(obj
, "nvdimm-persistence",
892 machine_get_nvdimm_persistence
,
893 machine_set_nvdimm_persistence
);
894 object_property_set_description(obj
, "nvdimm-persistence",
895 "Set NVDIMM persistence"
896 "Valid values are cpu, mem-ctrl");
899 if (mc
->cpu_index_to_instance_props
&& mc
->get_default_cpu_node_id
) {
900 ms
->numa_state
= g_new0(NumaState
, 1);
901 object_property_add_bool(obj
, "hmat",
902 machine_get_hmat
, machine_set_hmat
);
903 object_property_set_description(obj
, "hmat",
904 "Set on/off to enable/disable "
905 "ACPI Heterogeneous Memory Attribute "
909 /* Register notifier when init is done for sysbus sanity checks */
910 ms
->sysbus_notifier
.notify
= machine_init_notify
;
911 qemu_add_machine_init_done_notifier(&ms
->sysbus_notifier
);
913 /* default to mc->default_cpus */
914 ms
->smp
.cpus
= mc
->default_cpus
;
915 ms
->smp
.max_cpus
= mc
->default_cpus
;
921 static void machine_finalize(Object
*obj
)
923 MachineState
*ms
= MACHINE(obj
);
925 g_free(ms
->kernel_filename
);
926 g_free(ms
->initrd_filename
);
927 g_free(ms
->kernel_cmdline
);
930 g_free(ms
->dt_compatible
);
931 g_free(ms
->firmware
);
932 g_free(ms
->device_memory
);
933 g_free(ms
->nvdimms_state
);
934 g_free(ms
->numa_state
);
937 bool machine_usb(MachineState
*machine
)
942 int machine_phandle_start(MachineState
*machine
)
944 return machine
->phandle_start
;
947 bool machine_dump_guest_core(MachineState
*machine
)
949 return machine
->dump_guest_core
;
952 bool machine_mem_merge(MachineState
*machine
)
954 return machine
->mem_merge
;
957 static char *cpu_slot_to_string(const CPUArchId
*cpu
)
959 GString
*s
= g_string_new(NULL
);
960 if (cpu
->props
.has_socket_id
) {
961 g_string_append_printf(s
, "socket-id: %"PRId64
, cpu
->props
.socket_id
);
963 if (cpu
->props
.has_die_id
) {
964 g_string_append_printf(s
, "die-id: %"PRId64
, cpu
->props
.die_id
);
966 if (cpu
->props
.has_core_id
) {
968 g_string_append_printf(s
, ", ");
970 g_string_append_printf(s
, "core-id: %"PRId64
, cpu
->props
.core_id
);
972 if (cpu
->props
.has_thread_id
) {
974 g_string_append_printf(s
, ", ");
976 g_string_append_printf(s
, "thread-id: %"PRId64
, cpu
->props
.thread_id
);
978 return g_string_free(s
, false);
981 static void numa_validate_initiator(NumaState
*numa_state
)
984 NodeInfo
*numa_info
= numa_state
->nodes
;
986 for (i
= 0; i
< numa_state
->num_nodes
; i
++) {
987 if (numa_info
[i
].initiator
== MAX_NODES
) {
988 error_report("The initiator of NUMA node %d is missing, use "
989 "'-numa node,initiator' option to declare it", i
);
993 if (!numa_info
[numa_info
[i
].initiator
].present
) {
994 error_report("NUMA node %" PRIu16
" is missing, use "
995 "'-numa node' option to declare it first",
996 numa_info
[i
].initiator
);
1000 if (!numa_info
[numa_info
[i
].initiator
].has_cpu
) {
1001 error_report("The initiator of NUMA node %d is invalid", i
);
1007 static void machine_numa_finish_cpu_init(MachineState
*machine
)
1010 bool default_mapping
;
1011 GString
*s
= g_string_new(NULL
);
1012 MachineClass
*mc
= MACHINE_GET_CLASS(machine
);
1013 const CPUArchIdList
*possible_cpus
= mc
->possible_cpu_arch_ids(machine
);
1015 assert(machine
->numa_state
->num_nodes
);
1016 for (i
= 0; i
< possible_cpus
->len
; i
++) {
1017 if (possible_cpus
->cpus
[i
].props
.has_node_id
) {
1021 default_mapping
= (i
== possible_cpus
->len
);
1023 for (i
= 0; i
< possible_cpus
->len
; i
++) {
1024 const CPUArchId
*cpu_slot
= &possible_cpus
->cpus
[i
];
1026 if (!cpu_slot
->props
.has_node_id
) {
1027 /* fetch default mapping from board and enable it */
1028 CpuInstanceProperties props
= cpu_slot
->props
;
1030 props
.node_id
= mc
->get_default_cpu_node_id(machine
, i
);
1031 if (!default_mapping
) {
1032 /* record slots with not set mapping,
1033 * TODO: make it hard error in future */
1034 char *cpu_str
= cpu_slot_to_string(cpu_slot
);
1035 g_string_append_printf(s
, "%sCPU %d [%s]",
1036 s
->len
? ", " : "", i
, cpu_str
);
1039 /* non mapped cpus used to fallback to node 0 */
1043 props
.has_node_id
= true;
1044 machine_set_cpu_numa_node(machine
, &props
, &error_fatal
);
1048 if (machine
->numa_state
->hmat_enabled
) {
1049 numa_validate_initiator(machine
->numa_state
);
1052 if (s
->len
&& !qtest_enabled()) {
1053 warn_report("CPU(s) not present in any NUMA nodes: %s",
1055 warn_report("All CPU(s) up to maxcpus should be described "
1056 "in NUMA config, ability to start up with partial NUMA "
1057 "mappings is obsoleted and will be removed in future");
1059 g_string_free(s
, true);
1062 MemoryRegion
*machine_consume_memdev(MachineState
*machine
,
1063 HostMemoryBackend
*backend
)
1065 MemoryRegion
*ret
= host_memory_backend_get_memory(backend
);
1067 if (memory_region_is_mapped(ret
)) {
1068 error_report("memory backend %s can't be used multiple times.",
1069 object_get_canonical_path_component(OBJECT(backend
)));
1072 host_memory_backend_set_mapped(backend
, true);
1073 vmstate_register_ram_global(ret
);
1077 void machine_run_board_init(MachineState
*machine
)
1079 MachineClass
*machine_class
= MACHINE_GET_CLASS(machine
);
1080 ObjectClass
*oc
= object_class_by_name(machine
->cpu_type
);
1083 if (machine
->ram_memdev_id
) {
1085 o
= object_resolve_path_type(machine
->ram_memdev_id
,
1086 TYPE_MEMORY_BACKEND
, NULL
);
1087 machine
->ram
= machine_consume_memdev(machine
, MEMORY_BACKEND(o
));
1090 if (machine
->numa_state
) {
1091 numa_complete_configuration(machine
);
1092 if (machine
->numa_state
->num_nodes
) {
1093 machine_numa_finish_cpu_init(machine
);
1097 /* If the machine supports the valid_cpu_types check and the user
1098 * specified a CPU with -cpu check here that the user CPU is supported.
1100 if (machine_class
->valid_cpu_types
&& machine
->cpu_type
) {
1103 for (i
= 0; machine_class
->valid_cpu_types
[i
]; i
++) {
1104 if (object_class_dynamic_cast(oc
,
1105 machine_class
->valid_cpu_types
[i
])) {
1106 /* The user specificed CPU is in the valid field, we are
1113 if (!machine_class
->valid_cpu_types
[i
]) {
1114 /* The user specified CPU is not valid */
1115 error_report("Invalid CPU type: %s", machine
->cpu_type
);
1116 error_printf("The valid types are: %s",
1117 machine_class
->valid_cpu_types
[0]);
1118 for (i
= 1; machine_class
->valid_cpu_types
[i
]; i
++) {
1119 error_printf(", %s", machine_class
->valid_cpu_types
[i
]);
1127 /* Check if CPU type is deprecated and warn if so */
1129 if (cc
&& cc
->deprecation_note
) {
1130 warn_report("CPU model %s is deprecated -- %s", machine
->cpu_type
,
1131 cc
->deprecation_note
);
1134 machine_class
->init(machine
);
1137 static const TypeInfo machine_info
= {
1138 .name
= TYPE_MACHINE
,
1139 .parent
= TYPE_OBJECT
,
1141 .class_size
= sizeof(MachineClass
),
1142 .class_init
= machine_class_init
,
1143 .class_base_init
= machine_class_base_init
,
1144 .instance_size
= sizeof(MachineState
),
1145 .instance_init
= machine_initfn
,
1146 .instance_finalize
= machine_finalize
,
1149 static void machine_register_types(void)
1151 type_register_static(&machine_info
);
1154 type_init(machine_register_types
)