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_0
[] = {
32 { "virtio-balloon-device", "page-poison", "false" },
33 { "vmport", "x-read-set-eax", "off" },
34 { "vmport", "x-signal-unsupported-cmd", "off" },
35 { "vmport", "x-report-vmx-type", "off" },
36 { "vmport", "x-cmds-v2", "off" },
38 const size_t hw_compat_5_0_len
= G_N_ELEMENTS(hw_compat_5_0
);
40 GlobalProperty hw_compat_4_2
[] = {
41 { "virtio-blk-device", "queue-size", "128"},
42 { "virtio-scsi-device", "virtqueue_size", "128"},
43 { "virtio-blk-device", "x-enable-wce-if-config-wce", "off" },
44 { "virtio-blk-device", "seg-max-adjust", "off"},
45 { "virtio-scsi-device", "seg_max_adjust", "off"},
46 { "vhost-blk-device", "seg_max_adjust", "off"},
47 { "usb-host", "suppress-remote-wake", "off" },
48 { "usb-redir", "suppress-remote-wake", "off" },
49 { "qxl", "revision", "4" },
50 { "qxl-vga", "revision", "4" },
51 { "fw_cfg", "acpi-mr-restore", "false" },
53 const size_t hw_compat_4_2_len
= G_N_ELEMENTS(hw_compat_4_2
);
55 GlobalProperty hw_compat_4_1
[] = {
56 { "virtio-pci", "x-pcie-flr-init", "off" },
57 { "virtio-device", "use-disabled-flag", "false" },
59 const size_t hw_compat_4_1_len
= G_N_ELEMENTS(hw_compat_4_1
);
61 GlobalProperty hw_compat_4_0
[] = {
62 { "VGA", "edid", "false" },
63 { "secondary-vga", "edid", "false" },
64 { "bochs-display", "edid", "false" },
65 { "virtio-vga", "edid", "false" },
66 { "virtio-gpu-device", "edid", "false" },
67 { "virtio-device", "use-started", "false" },
68 { "virtio-balloon-device", "qemu-4-0-config-size", "true" },
69 { "pl031", "migrate-tick-offset", "false" },
71 const size_t hw_compat_4_0_len
= G_N_ELEMENTS(hw_compat_4_0
);
73 GlobalProperty hw_compat_3_1
[] = {
74 { "pcie-root-port", "x-speed", "2_5" },
75 { "pcie-root-port", "x-width", "1" },
76 { "memory-backend-file", "x-use-canonical-path-for-ramblock-id", "true" },
77 { "memory-backend-memfd", "x-use-canonical-path-for-ramblock-id", "true" },
78 { "tpm-crb", "ppi", "false" },
79 { "tpm-tis", "ppi", "false" },
80 { "usb-kbd", "serial", "42" },
81 { "usb-mouse", "serial", "42" },
82 { "usb-tablet", "serial", "42" },
83 { "virtio-blk-device", "discard", "false" },
84 { "virtio-blk-device", "write-zeroes", "false" },
85 { "virtio-balloon-device", "qemu-4-0-config-size", "false" },
86 { "pcie-root-port-base", "disable-acs", "true" }, /* Added in 4.1 */
88 const size_t hw_compat_3_1_len
= G_N_ELEMENTS(hw_compat_3_1
);
90 GlobalProperty hw_compat_3_0
[] = {};
91 const size_t hw_compat_3_0_len
= G_N_ELEMENTS(hw_compat_3_0
);
93 GlobalProperty hw_compat_2_12
[] = {
94 { "migration", "decompress-error-check", "off" },
95 { "hda-audio", "use-timer", "false" },
96 { "cirrus-vga", "global-vmstate", "true" },
97 { "VGA", "global-vmstate", "true" },
98 { "vmware-svga", "global-vmstate", "true" },
99 { "qxl-vga", "global-vmstate", "true" },
101 const size_t hw_compat_2_12_len
= G_N_ELEMENTS(hw_compat_2_12
);
103 GlobalProperty hw_compat_2_11
[] = {
104 { "hpet", "hpet-offset-saved", "false" },
105 { "virtio-blk-pci", "vectors", "2" },
106 { "vhost-user-blk-pci", "vectors", "2" },
107 { "e1000", "migrate_tso_props", "off" },
109 const size_t hw_compat_2_11_len
= G_N_ELEMENTS(hw_compat_2_11
);
111 GlobalProperty hw_compat_2_10
[] = {
112 { "virtio-mouse-device", "wheel-axis", "false" },
113 { "virtio-tablet-device", "wheel-axis", "false" },
115 const size_t hw_compat_2_10_len
= G_N_ELEMENTS(hw_compat_2_10
);
117 GlobalProperty hw_compat_2_9
[] = {
118 { "pci-bridge", "shpc", "off" },
119 { "intel-iommu", "pt", "off" },
120 { "virtio-net-device", "x-mtu-bypass-backend", "off" },
121 { "pcie-root-port", "x-migrate-msix", "false" },
123 const size_t hw_compat_2_9_len
= G_N_ELEMENTS(hw_compat_2_9
);
125 GlobalProperty hw_compat_2_8
[] = {
126 { "fw_cfg_mem", "x-file-slots", "0x10" },
127 { "fw_cfg_io", "x-file-slots", "0x10" },
128 { "pflash_cfi01", "old-multiple-chip-handling", "on" },
129 { "pci-bridge", "shpc", "on" },
130 { TYPE_PCI_DEVICE
, "x-pcie-extcap-init", "off" },
131 { "virtio-pci", "x-pcie-deverr-init", "off" },
132 { "virtio-pci", "x-pcie-lnkctl-init", "off" },
133 { "virtio-pci", "x-pcie-pm-init", "off" },
134 { "cirrus-vga", "vgamem_mb", "8" },
135 { "isa-cirrus-vga", "vgamem_mb", "8" },
137 const size_t hw_compat_2_8_len
= G_N_ELEMENTS(hw_compat_2_8
);
139 GlobalProperty hw_compat_2_7
[] = {
140 { "virtio-pci", "page-per-vq", "on" },
141 { "virtio-serial-device", "emergency-write", "off" },
142 { "ioapic", "version", "0x11" },
143 { "intel-iommu", "x-buggy-eim", "true" },
144 { "virtio-pci", "x-ignore-backend-features", "on" },
146 const size_t hw_compat_2_7_len
= G_N_ELEMENTS(hw_compat_2_7
);
148 GlobalProperty hw_compat_2_6
[] = {
149 { "virtio-mmio", "format_transport_address", "off" },
150 /* Optional because not all virtio-pci devices support legacy mode */
151 { "virtio-pci", "disable-modern", "on", .optional
= true },
152 { "virtio-pci", "disable-legacy", "off", .optional
= true },
154 const size_t hw_compat_2_6_len
= G_N_ELEMENTS(hw_compat_2_6
);
156 GlobalProperty hw_compat_2_5
[] = {
157 { "isa-fdc", "fallback", "144" },
158 { "pvscsi", "x-old-pci-configuration", "on" },
159 { "pvscsi", "x-disable-pcie", "on" },
160 { "vmxnet3", "x-old-msi-offsets", "on" },
161 { "vmxnet3", "x-disable-pcie", "on" },
163 const size_t hw_compat_2_5_len
= G_N_ELEMENTS(hw_compat_2_5
);
165 GlobalProperty hw_compat_2_4
[] = {
166 /* Optional because the 'scsi' property is Linux-only */
167 { "virtio-blk-device", "scsi", "true", .optional
= true },
168 { "e1000", "extra_mac_registers", "off" },
169 { "virtio-pci", "x-disable-pcie", "on" },
170 { "virtio-pci", "migrate-extra", "off" },
171 { "fw_cfg_mem", "dma_enabled", "off" },
172 { "fw_cfg_io", "dma_enabled", "off" }
174 const size_t hw_compat_2_4_len
= G_N_ELEMENTS(hw_compat_2_4
);
176 GlobalProperty hw_compat_2_3
[] = {
177 { "virtio-blk-pci", "any_layout", "off" },
178 { "virtio-balloon-pci", "any_layout", "off" },
179 { "virtio-serial-pci", "any_layout", "off" },
180 { "virtio-9p-pci", "any_layout", "off" },
181 { "virtio-rng-pci", "any_layout", "off" },
182 { TYPE_PCI_DEVICE
, "x-pcie-lnksta-dllla", "off" },
183 { "migration", "send-configuration", "off" },
184 { "migration", "send-section-footer", "off" },
185 { "migration", "store-global-state", "off" },
187 const size_t hw_compat_2_3_len
= G_N_ELEMENTS(hw_compat_2_3
);
189 GlobalProperty hw_compat_2_2
[] = {};
190 const size_t hw_compat_2_2_len
= G_N_ELEMENTS(hw_compat_2_2
);
192 GlobalProperty hw_compat_2_1
[] = {
193 { "intel-hda", "old_msi_addr", "on" },
194 { "VGA", "qemu-extended-regs", "off" },
195 { "secondary-vga", "qemu-extended-regs", "off" },
196 { "virtio-scsi-pci", "any_layout", "off" },
197 { "usb-mouse", "usb_version", "1" },
198 { "usb-kbd", "usb_version", "1" },
199 { "virtio-pci", "virtio-pci-bus-master-bug-migration", "on" },
201 const size_t hw_compat_2_1_len
= G_N_ELEMENTS(hw_compat_2_1
);
203 static char *machine_get_kernel(Object
*obj
, Error
**errp
)
205 MachineState
*ms
= MACHINE(obj
);
207 return g_strdup(ms
->kernel_filename
);
210 static void machine_set_kernel(Object
*obj
, const char *value
, Error
**errp
)
212 MachineState
*ms
= MACHINE(obj
);
214 g_free(ms
->kernel_filename
);
215 ms
->kernel_filename
= g_strdup(value
);
218 static char *machine_get_initrd(Object
*obj
, Error
**errp
)
220 MachineState
*ms
= MACHINE(obj
);
222 return g_strdup(ms
->initrd_filename
);
225 static void machine_set_initrd(Object
*obj
, const char *value
, Error
**errp
)
227 MachineState
*ms
= MACHINE(obj
);
229 g_free(ms
->initrd_filename
);
230 ms
->initrd_filename
= g_strdup(value
);
233 static char *machine_get_append(Object
*obj
, Error
**errp
)
235 MachineState
*ms
= MACHINE(obj
);
237 return g_strdup(ms
->kernel_cmdline
);
240 static void machine_set_append(Object
*obj
, const char *value
, Error
**errp
)
242 MachineState
*ms
= MACHINE(obj
);
244 g_free(ms
->kernel_cmdline
);
245 ms
->kernel_cmdline
= g_strdup(value
);
248 static char *machine_get_dtb(Object
*obj
, Error
**errp
)
250 MachineState
*ms
= MACHINE(obj
);
252 return g_strdup(ms
->dtb
);
255 static void machine_set_dtb(Object
*obj
, const char *value
, Error
**errp
)
257 MachineState
*ms
= MACHINE(obj
);
260 ms
->dtb
= g_strdup(value
);
263 static char *machine_get_dumpdtb(Object
*obj
, Error
**errp
)
265 MachineState
*ms
= MACHINE(obj
);
267 return g_strdup(ms
->dumpdtb
);
270 static void machine_set_dumpdtb(Object
*obj
, const char *value
, Error
**errp
)
272 MachineState
*ms
= MACHINE(obj
);
275 ms
->dumpdtb
= g_strdup(value
);
278 static void machine_get_phandle_start(Object
*obj
, Visitor
*v
,
279 const char *name
, void *opaque
,
282 MachineState
*ms
= MACHINE(obj
);
283 int64_t value
= ms
->phandle_start
;
285 visit_type_int(v
, name
, &value
, errp
);
288 static void machine_set_phandle_start(Object
*obj
, Visitor
*v
,
289 const char *name
, void *opaque
,
292 MachineState
*ms
= MACHINE(obj
);
296 if (!visit_type_int(v
, name
, &value
, &error
)) {
297 error_propagate(errp
, error
);
301 ms
->phandle_start
= value
;
304 static char *machine_get_dt_compatible(Object
*obj
, Error
**errp
)
306 MachineState
*ms
= MACHINE(obj
);
308 return g_strdup(ms
->dt_compatible
);
311 static void machine_set_dt_compatible(Object
*obj
, const char *value
, Error
**errp
)
313 MachineState
*ms
= MACHINE(obj
);
315 g_free(ms
->dt_compatible
);
316 ms
->dt_compatible
= g_strdup(value
);
319 static bool machine_get_dump_guest_core(Object
*obj
, Error
**errp
)
321 MachineState
*ms
= MACHINE(obj
);
323 return ms
->dump_guest_core
;
326 static void machine_set_dump_guest_core(Object
*obj
, bool value
, Error
**errp
)
328 MachineState
*ms
= MACHINE(obj
);
330 ms
->dump_guest_core
= value
;
333 static bool machine_get_mem_merge(Object
*obj
, Error
**errp
)
335 MachineState
*ms
= MACHINE(obj
);
337 return ms
->mem_merge
;
340 static void machine_set_mem_merge(Object
*obj
, bool value
, Error
**errp
)
342 MachineState
*ms
= MACHINE(obj
);
344 ms
->mem_merge
= value
;
347 static bool machine_get_usb(Object
*obj
, Error
**errp
)
349 MachineState
*ms
= MACHINE(obj
);
354 static void machine_set_usb(Object
*obj
, bool value
, Error
**errp
)
356 MachineState
*ms
= MACHINE(obj
);
359 ms
->usb_disabled
= !value
;
362 static bool machine_get_graphics(Object
*obj
, Error
**errp
)
364 MachineState
*ms
= MACHINE(obj
);
366 return ms
->enable_graphics
;
369 static void machine_set_graphics(Object
*obj
, bool value
, Error
**errp
)
371 MachineState
*ms
= MACHINE(obj
);
373 ms
->enable_graphics
= value
;
376 static char *machine_get_firmware(Object
*obj
, Error
**errp
)
378 MachineState
*ms
= MACHINE(obj
);
380 return g_strdup(ms
->firmware
);
383 static void machine_set_firmware(Object
*obj
, const char *value
, Error
**errp
)
385 MachineState
*ms
= MACHINE(obj
);
387 g_free(ms
->firmware
);
388 ms
->firmware
= g_strdup(value
);
391 static void machine_set_suppress_vmdesc(Object
*obj
, bool value
, Error
**errp
)
393 MachineState
*ms
= MACHINE(obj
);
395 ms
->suppress_vmdesc
= value
;
398 static bool machine_get_suppress_vmdesc(Object
*obj
, Error
**errp
)
400 MachineState
*ms
= MACHINE(obj
);
402 return ms
->suppress_vmdesc
;
405 static void machine_set_enforce_config_section(Object
*obj
, bool value
,
408 MachineState
*ms
= MACHINE(obj
);
410 warn_report("enforce-config-section is deprecated, please use "
411 "-global migration.send-configuration=on|off instead");
413 ms
->enforce_config_section
= value
;
416 static bool machine_get_enforce_config_section(Object
*obj
, Error
**errp
)
418 MachineState
*ms
= MACHINE(obj
);
420 return ms
->enforce_config_section
;
423 static char *machine_get_memory_encryption(Object
*obj
, Error
**errp
)
425 MachineState
*ms
= MACHINE(obj
);
427 return g_strdup(ms
->memory_encryption
);
430 static void machine_set_memory_encryption(Object
*obj
, const char *value
,
433 MachineState
*ms
= MACHINE(obj
);
435 g_free(ms
->memory_encryption
);
436 ms
->memory_encryption
= g_strdup(value
);
439 * With memory encryption, the host can't see the real contents of RAM,
440 * so there's no point in it trying to merge areas.
443 machine_set_mem_merge(obj
, false, errp
);
447 static bool machine_get_nvdimm(Object
*obj
, Error
**errp
)
449 MachineState
*ms
= MACHINE(obj
);
451 return ms
->nvdimms_state
->is_enabled
;
454 static void machine_set_nvdimm(Object
*obj
, bool value
, Error
**errp
)
456 MachineState
*ms
= MACHINE(obj
);
458 ms
->nvdimms_state
->is_enabled
= value
;
461 static bool machine_get_hmat(Object
*obj
, Error
**errp
)
463 MachineState
*ms
= MACHINE(obj
);
465 return ms
->numa_state
->hmat_enabled
;
468 static void machine_set_hmat(Object
*obj
, bool value
, Error
**errp
)
470 MachineState
*ms
= MACHINE(obj
);
472 ms
->numa_state
->hmat_enabled
= value
;
475 static char *machine_get_nvdimm_persistence(Object
*obj
, Error
**errp
)
477 MachineState
*ms
= MACHINE(obj
);
479 return g_strdup(ms
->nvdimms_state
->persistence_string
);
482 static void machine_set_nvdimm_persistence(Object
*obj
, const char *value
,
485 MachineState
*ms
= MACHINE(obj
);
486 NVDIMMState
*nvdimms_state
= ms
->nvdimms_state
;
488 if (strcmp(value
, "cpu") == 0) {
489 nvdimms_state
->persistence
= 3;
490 } else if (strcmp(value
, "mem-ctrl") == 0) {
491 nvdimms_state
->persistence
= 2;
493 error_setg(errp
, "-machine nvdimm-persistence=%s: unsupported option",
498 g_free(nvdimms_state
->persistence_string
);
499 nvdimms_state
->persistence_string
= g_strdup(value
);
502 void machine_class_allow_dynamic_sysbus_dev(MachineClass
*mc
, const char *type
)
504 strList
*item
= g_new0(strList
, 1);
506 item
->value
= g_strdup(type
);
507 item
->next
= mc
->allowed_dynamic_sysbus_devices
;
508 mc
->allowed_dynamic_sysbus_devices
= item
;
511 static void validate_sysbus_device(SysBusDevice
*sbdev
, void *opaque
)
513 MachineState
*machine
= opaque
;
514 MachineClass
*mc
= MACHINE_GET_CLASS(machine
);
515 bool allowed
= false;
518 for (wl
= mc
->allowed_dynamic_sysbus_devices
;
521 allowed
|= !!object_dynamic_cast(OBJECT(sbdev
), wl
->value
);
525 error_report("Option '-device %s' cannot be handled by this machine",
526 object_class_get_name(object_get_class(OBJECT(sbdev
))));
531 static char *machine_get_memdev(Object
*obj
, Error
**errp
)
533 MachineState
*ms
= MACHINE(obj
);
535 return g_strdup(ms
->ram_memdev_id
);
538 static void machine_set_memdev(Object
*obj
, const char *value
, Error
**errp
)
540 MachineState
*ms
= MACHINE(obj
);
542 g_free(ms
->ram_memdev_id
);
543 ms
->ram_memdev_id
= g_strdup(value
);
547 static void machine_init_notify(Notifier
*notifier
, void *data
)
549 MachineState
*machine
= MACHINE(qdev_get_machine());
552 * Loop through all dynamically created sysbus devices and check if they are
553 * all allowed. If a device is not allowed, error out.
555 foreach_dynamic_sysbus_device(validate_sysbus_device
, machine
);
558 HotpluggableCPUList
*machine_query_hotpluggable_cpus(MachineState
*machine
)
561 HotpluggableCPUList
*head
= NULL
;
562 MachineClass
*mc
= MACHINE_GET_CLASS(machine
);
564 /* force board to initialize possible_cpus if it hasn't been done yet */
565 mc
->possible_cpu_arch_ids(machine
);
567 for (i
= 0; i
< machine
->possible_cpus
->len
; i
++) {
569 HotpluggableCPUList
*list_item
= g_new0(typeof(*list_item
), 1);
570 HotpluggableCPU
*cpu_item
= g_new0(typeof(*cpu_item
), 1);
572 cpu_item
->type
= g_strdup(machine
->possible_cpus
->cpus
[i
].type
);
573 cpu_item
->vcpus_count
= machine
->possible_cpus
->cpus
[i
].vcpus_count
;
574 cpu_item
->props
= g_memdup(&machine
->possible_cpus
->cpus
[i
].props
,
575 sizeof(*cpu_item
->props
));
577 cpu
= machine
->possible_cpus
->cpus
[i
].cpu
;
579 cpu_item
->has_qom_path
= true;
580 cpu_item
->qom_path
= object_get_canonical_path(cpu
);
582 list_item
->value
= cpu_item
;
583 list_item
->next
= head
;
590 * machine_set_cpu_numa_node:
591 * @machine: machine object to modify
592 * @props: specifies which cpu objects to assign to
593 * numa node specified by @props.node_id
594 * @errp: if an error occurs, a pointer to an area to store the error
596 * Associate NUMA node specified by @props.node_id with cpu slots that
597 * match socket/core/thread-ids specified by @props. It's recommended to use
598 * query-hotpluggable-cpus.props values to specify affected cpu slots,
599 * which would lead to exact 1:1 mapping of cpu slots to NUMA node.
601 * However for CLI convenience it's possible to pass in subset of properties,
602 * which would affect all cpu slots that match it.
604 * -smp 4,cores=2,sockets=2 -numa node,nodeid=0 -numa node,nodeid=1 \
605 * -numa cpu,node-id=0,socket_id=0 \
606 * -numa cpu,node-id=1,socket_id=1
607 * will assign all child cores of socket 0 to node 0 and
608 * of socket 1 to node 1.
610 * On attempt of reassigning (already assigned) cpu slot to another NUMA node,
612 * Empty subset is disallowed and function will return with error in this case.
614 void machine_set_cpu_numa_node(MachineState
*machine
,
615 const CpuInstanceProperties
*props
, Error
**errp
)
617 MachineClass
*mc
= MACHINE_GET_CLASS(machine
);
618 NodeInfo
*numa_info
= machine
->numa_state
->nodes
;
622 if (!mc
->possible_cpu_arch_ids
) {
623 error_setg(errp
, "mapping of CPUs to NUMA node is not supported");
627 /* disabling node mapping is not supported, forbid it */
628 assert(props
->has_node_id
);
630 /* force board to initialize possible_cpus if it hasn't been done yet */
631 mc
->possible_cpu_arch_ids(machine
);
633 for (i
= 0; i
< machine
->possible_cpus
->len
; i
++) {
634 CPUArchId
*slot
= &machine
->possible_cpus
->cpus
[i
];
636 /* reject unsupported by board properties */
637 if (props
->has_thread_id
&& !slot
->props
.has_thread_id
) {
638 error_setg(errp
, "thread-id is not supported");
642 if (props
->has_core_id
&& !slot
->props
.has_core_id
) {
643 error_setg(errp
, "core-id is not supported");
647 if (props
->has_socket_id
&& !slot
->props
.has_socket_id
) {
648 error_setg(errp
, "socket-id is not supported");
652 if (props
->has_die_id
&& !slot
->props
.has_die_id
) {
653 error_setg(errp
, "die-id is not supported");
657 /* skip slots with explicit mismatch */
658 if (props
->has_thread_id
&& props
->thread_id
!= slot
->props
.thread_id
) {
662 if (props
->has_core_id
&& props
->core_id
!= slot
->props
.core_id
) {
666 if (props
->has_die_id
&& props
->die_id
!= slot
->props
.die_id
) {
670 if (props
->has_socket_id
&& props
->socket_id
!= slot
->props
.socket_id
) {
674 /* reject assignment if slot is already assigned, for compatibility
675 * of legacy cpu_index mapping with SPAPR core based mapping do not
676 * error out if cpu thread and matched core have the same node-id */
677 if (slot
->props
.has_node_id
&&
678 slot
->props
.node_id
!= props
->node_id
) {
679 error_setg(errp
, "CPU is already assigned to node-id: %" PRId64
,
680 slot
->props
.node_id
);
684 /* assign slot to node as it's matched '-numa cpu' key */
686 slot
->props
.node_id
= props
->node_id
;
687 slot
->props
.has_node_id
= props
->has_node_id
;
689 if (machine
->numa_state
->hmat_enabled
) {
690 if ((numa_info
[props
->node_id
].initiator
< MAX_NODES
) &&
691 (props
->node_id
!= numa_info
[props
->node_id
].initiator
)) {
692 error_setg(errp
, "The initiator of CPU NUMA node %" PRId64
693 " should be itself", props
->node_id
);
696 numa_info
[props
->node_id
].has_cpu
= true;
697 numa_info
[props
->node_id
].initiator
= props
->node_id
;
702 error_setg(errp
, "no match found");
706 static void smp_parse(MachineState
*ms
, QemuOpts
*opts
)
709 unsigned cpus
= qemu_opt_get_number(opts
, "cpus", 0);
710 unsigned sockets
= qemu_opt_get_number(opts
, "sockets", 0);
711 unsigned cores
= qemu_opt_get_number(opts
, "cores", 0);
712 unsigned threads
= qemu_opt_get_number(opts
, "threads", 0);
714 /* compute missing values, prefer sockets over cores over threads */
715 if (cpus
== 0 || sockets
== 0) {
716 cores
= cores
> 0 ? cores
: 1;
717 threads
= threads
> 0 ? threads
: 1;
719 sockets
= sockets
> 0 ? sockets
: 1;
720 cpus
= cores
* threads
* sockets
;
723 qemu_opt_get_number(opts
, "maxcpus", cpus
);
724 sockets
= ms
->smp
.max_cpus
/ (cores
* threads
);
726 } else if (cores
== 0) {
727 threads
= threads
> 0 ? threads
: 1;
728 cores
= cpus
/ (sockets
* threads
);
729 cores
= cores
> 0 ? cores
: 1;
730 } else if (threads
== 0) {
731 threads
= cpus
/ (cores
* sockets
);
732 threads
= threads
> 0 ? threads
: 1;
733 } else if (sockets
* cores
* threads
< cpus
) {
734 error_report("cpu topology: "
735 "sockets (%u) * cores (%u) * threads (%u) < "
737 sockets
, cores
, threads
, cpus
);
742 qemu_opt_get_number(opts
, "maxcpus", cpus
);
744 if (ms
->smp
.max_cpus
< cpus
) {
745 error_report("maxcpus must be equal to or greater than smp");
749 if (sockets
* cores
* threads
> ms
->smp
.max_cpus
) {
750 error_report("cpu topology: "
751 "sockets (%u) * cores (%u) * threads (%u) > "
753 sockets
, cores
, threads
,
758 if (sockets
* cores
* threads
!= ms
->smp
.max_cpus
) {
759 warn_report("Invalid CPU topology deprecated: "
760 "sockets (%u) * cores (%u) * threads (%u) "
762 sockets
, cores
, threads
,
767 ms
->smp
.cores
= cores
;
768 ms
->smp
.threads
= threads
;
769 ms
->smp
.sockets
= sockets
;
772 if (ms
->smp
.cpus
> 1) {
773 Error
*blocker
= NULL
;
774 error_setg(&blocker
, QERR_REPLAY_NOT_SUPPORTED
, "smp");
775 replay_add_blocker(blocker
);
779 static void machine_class_init(ObjectClass
*oc
, void *data
)
781 MachineClass
*mc
= MACHINE_CLASS(oc
);
783 /* Default 128 MB as guest ram size */
784 mc
->default_ram_size
= 128 * MiB
;
785 mc
->rom_file_has_mr
= true;
786 mc
->smp_parse
= smp_parse
;
788 /* numa node memory size aligned on 8MB by default.
789 * On Linux, each node's border has to be 8MB aligned
791 mc
->numa_mem_align_shift
= 23;
792 mc
->numa_auto_assign_ram
= numa_default_auto_assign_ram
;
794 object_class_property_add_str(oc
, "kernel",
795 machine_get_kernel
, machine_set_kernel
);
796 object_class_property_set_description(oc
, "kernel",
797 "Linux kernel image file");
799 object_class_property_add_str(oc
, "initrd",
800 machine_get_initrd
, machine_set_initrd
);
801 object_class_property_set_description(oc
, "initrd",
802 "Linux initial ramdisk file");
804 object_class_property_add_str(oc
, "append",
805 machine_get_append
, machine_set_append
);
806 object_class_property_set_description(oc
, "append",
807 "Linux kernel command line");
809 object_class_property_add_str(oc
, "dtb",
810 machine_get_dtb
, machine_set_dtb
);
811 object_class_property_set_description(oc
, "dtb",
812 "Linux kernel device tree file");
814 object_class_property_add_str(oc
, "dumpdtb",
815 machine_get_dumpdtb
, machine_set_dumpdtb
);
816 object_class_property_set_description(oc
, "dumpdtb",
817 "Dump current dtb to a file and quit");
819 object_class_property_add(oc
, "phandle-start", "int",
820 machine_get_phandle_start
, machine_set_phandle_start
,
822 object_class_property_set_description(oc
, "phandle-start",
823 "The first phandle ID we may generate dynamically");
825 object_class_property_add_str(oc
, "dt-compatible",
826 machine_get_dt_compatible
, machine_set_dt_compatible
);
827 object_class_property_set_description(oc
, "dt-compatible",
828 "Overrides the \"compatible\" property of the dt root node");
830 object_class_property_add_bool(oc
, "dump-guest-core",
831 machine_get_dump_guest_core
, machine_set_dump_guest_core
);
832 object_class_property_set_description(oc
, "dump-guest-core",
833 "Include guest memory in a core dump");
835 object_class_property_add_bool(oc
, "mem-merge",
836 machine_get_mem_merge
, machine_set_mem_merge
);
837 object_class_property_set_description(oc
, "mem-merge",
838 "Enable/disable memory merge support");
840 object_class_property_add_bool(oc
, "usb",
841 machine_get_usb
, machine_set_usb
);
842 object_class_property_set_description(oc
, "usb",
843 "Set on/off to enable/disable usb");
845 object_class_property_add_bool(oc
, "graphics",
846 machine_get_graphics
, machine_set_graphics
);
847 object_class_property_set_description(oc
, "graphics",
848 "Set on/off to enable/disable graphics emulation");
850 object_class_property_add_str(oc
, "firmware",
851 machine_get_firmware
, machine_set_firmware
);
852 object_class_property_set_description(oc
, "firmware",
855 object_class_property_add_bool(oc
, "suppress-vmdesc",
856 machine_get_suppress_vmdesc
, machine_set_suppress_vmdesc
);
857 object_class_property_set_description(oc
, "suppress-vmdesc",
858 "Set on to disable self-describing migration");
860 object_class_property_add_bool(oc
, "enforce-config-section",
861 machine_get_enforce_config_section
, machine_set_enforce_config_section
);
862 object_class_property_set_description(oc
, "enforce-config-section",
863 "Set on to enforce configuration section migration");
865 object_class_property_add_str(oc
, "memory-encryption",
866 machine_get_memory_encryption
, machine_set_memory_encryption
);
867 object_class_property_set_description(oc
, "memory-encryption",
868 "Set memory encryption object to use");
871 static void machine_class_base_init(ObjectClass
*oc
, void *data
)
873 if (!object_class_is_abstract(oc
)) {
874 MachineClass
*mc
= MACHINE_CLASS(oc
);
875 const char *cname
= object_class_get_name(oc
);
876 assert(g_str_has_suffix(cname
, TYPE_MACHINE_SUFFIX
));
877 mc
->name
= g_strndup(cname
,
878 strlen(cname
) - strlen(TYPE_MACHINE_SUFFIX
));
879 mc
->compat_props
= g_ptr_array_new();
883 static void machine_initfn(Object
*obj
)
885 MachineState
*ms
= MACHINE(obj
);
886 MachineClass
*mc
= MACHINE_GET_CLASS(obj
);
888 ms
->dump_guest_core
= true;
889 ms
->mem_merge
= true;
890 ms
->enable_graphics
= true;
892 if (mc
->nvdimm_supported
) {
893 Object
*obj
= OBJECT(ms
);
895 ms
->nvdimms_state
= g_new0(NVDIMMState
, 1);
896 object_property_add_bool(obj
, "nvdimm",
897 machine_get_nvdimm
, machine_set_nvdimm
);
898 object_property_set_description(obj
, "nvdimm",
899 "Set on/off to enable/disable "
900 "NVDIMM instantiation");
902 object_property_add_str(obj
, "nvdimm-persistence",
903 machine_get_nvdimm_persistence
,
904 machine_set_nvdimm_persistence
);
905 object_property_set_description(obj
, "nvdimm-persistence",
906 "Set NVDIMM persistence"
907 "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
);
914 object_property_set_description(obj
, "hmat",
915 "Set on/off to enable/disable "
916 "ACPI Heterogeneous Memory Attribute "
920 object_property_add_str(obj
, "memory-backend",
921 machine_get_memdev
, machine_set_memdev
);
922 object_property_set_description(obj
, "memory-backend",
924 "Valid value is ID of hostmem based backend");
926 /* Register notifier when init is done for sysbus sanity checks */
927 ms
->sysbus_notifier
.notify
= machine_init_notify
;
928 qemu_add_machine_init_done_notifier(&ms
->sysbus_notifier
);
931 static void machine_finalize(Object
*obj
)
933 MachineState
*ms
= MACHINE(obj
);
935 g_free(ms
->kernel_filename
);
936 g_free(ms
->initrd_filename
);
937 g_free(ms
->kernel_cmdline
);
940 g_free(ms
->dt_compatible
);
941 g_free(ms
->firmware
);
942 g_free(ms
->device_memory
);
943 g_free(ms
->nvdimms_state
);
944 g_free(ms
->numa_state
);
947 bool machine_usb(MachineState
*machine
)
952 int machine_phandle_start(MachineState
*machine
)
954 return machine
->phandle_start
;
957 bool machine_dump_guest_core(MachineState
*machine
)
959 return machine
->dump_guest_core
;
962 bool machine_mem_merge(MachineState
*machine
)
964 return machine
->mem_merge
;
967 static char *cpu_slot_to_string(const CPUArchId
*cpu
)
969 GString
*s
= g_string_new(NULL
);
970 if (cpu
->props
.has_socket_id
) {
971 g_string_append_printf(s
, "socket-id: %"PRId64
, cpu
->props
.socket_id
);
973 if (cpu
->props
.has_die_id
) {
974 g_string_append_printf(s
, "die-id: %"PRId64
, cpu
->props
.die_id
);
976 if (cpu
->props
.has_core_id
) {
978 g_string_append_printf(s
, ", ");
980 g_string_append_printf(s
, "core-id: %"PRId64
, cpu
->props
.core_id
);
982 if (cpu
->props
.has_thread_id
) {
984 g_string_append_printf(s
, ", ");
986 g_string_append_printf(s
, "thread-id: %"PRId64
, cpu
->props
.thread_id
);
988 return g_string_free(s
, false);
991 static void numa_validate_initiator(NumaState
*numa_state
)
994 NodeInfo
*numa_info
= numa_state
->nodes
;
996 for (i
= 0; i
< numa_state
->num_nodes
; i
++) {
997 if (numa_info
[i
].initiator
== MAX_NODES
) {
998 error_report("The initiator of NUMA node %d is missing, use "
999 "'-numa node,initiator' option to declare it", i
);
1003 if (!numa_info
[numa_info
[i
].initiator
].present
) {
1004 error_report("NUMA node %" PRIu16
" is missing, use "
1005 "'-numa node' option to declare it first",
1006 numa_info
[i
].initiator
);
1010 if (!numa_info
[numa_info
[i
].initiator
].has_cpu
) {
1011 error_report("The initiator of NUMA node %d is invalid", i
);
1017 static void machine_numa_finish_cpu_init(MachineState
*machine
)
1020 bool default_mapping
;
1021 GString
*s
= g_string_new(NULL
);
1022 MachineClass
*mc
= MACHINE_GET_CLASS(machine
);
1023 const CPUArchIdList
*possible_cpus
= mc
->possible_cpu_arch_ids(machine
);
1025 assert(machine
->numa_state
->num_nodes
);
1026 for (i
= 0; i
< possible_cpus
->len
; i
++) {
1027 if (possible_cpus
->cpus
[i
].props
.has_node_id
) {
1031 default_mapping
= (i
== possible_cpus
->len
);
1033 for (i
= 0; i
< possible_cpus
->len
; i
++) {
1034 const CPUArchId
*cpu_slot
= &possible_cpus
->cpus
[i
];
1036 if (!cpu_slot
->props
.has_node_id
) {
1037 /* fetch default mapping from board and enable it */
1038 CpuInstanceProperties props
= cpu_slot
->props
;
1040 props
.node_id
= mc
->get_default_cpu_node_id(machine
, i
);
1041 if (!default_mapping
) {
1042 /* record slots with not set mapping,
1043 * TODO: make it hard error in future */
1044 char *cpu_str
= cpu_slot_to_string(cpu_slot
);
1045 g_string_append_printf(s
, "%sCPU %d [%s]",
1046 s
->len
? ", " : "", i
, cpu_str
);
1049 /* non mapped cpus used to fallback to node 0 */
1053 props
.has_node_id
= true;
1054 machine_set_cpu_numa_node(machine
, &props
, &error_fatal
);
1058 if (machine
->numa_state
->hmat_enabled
) {
1059 numa_validate_initiator(machine
->numa_state
);
1062 if (s
->len
&& !qtest_enabled()) {
1063 warn_report("CPU(s) not present in any NUMA nodes: %s",
1065 warn_report("All CPU(s) up to maxcpus should be described "
1066 "in NUMA config, ability to start up with partial NUMA "
1067 "mappings is obsoleted and will be removed in future");
1069 g_string_free(s
, true);
1072 MemoryRegion
*machine_consume_memdev(MachineState
*machine
,
1073 HostMemoryBackend
*backend
)
1075 MemoryRegion
*ret
= host_memory_backend_get_memory(backend
);
1077 if (memory_region_is_mapped(ret
)) {
1078 char *path
= object_get_canonical_path_component(OBJECT(backend
));
1079 error_report("memory backend %s can't be used multiple times.", path
);
1083 host_memory_backend_set_mapped(backend
, true);
1084 vmstate_register_ram_global(ret
);
1088 void machine_run_board_init(MachineState
*machine
)
1090 MachineClass
*machine_class
= MACHINE_GET_CLASS(machine
);
1092 if (machine
->ram_memdev_id
) {
1094 o
= object_resolve_path_type(machine
->ram_memdev_id
,
1095 TYPE_MEMORY_BACKEND
, NULL
);
1096 machine
->ram
= machine_consume_memdev(machine
, MEMORY_BACKEND(o
));
1099 if (machine
->numa_state
) {
1100 numa_complete_configuration(machine
);
1101 if (machine
->numa_state
->num_nodes
) {
1102 machine_numa_finish_cpu_init(machine
);
1106 /* If the machine supports the valid_cpu_types check and the user
1107 * specified a CPU with -cpu check here that the user CPU is supported.
1109 if (machine_class
->valid_cpu_types
&& machine
->cpu_type
) {
1110 ObjectClass
*class = object_class_by_name(machine
->cpu_type
);
1113 for (i
= 0; machine_class
->valid_cpu_types
[i
]; i
++) {
1114 if (object_class_dynamic_cast(class,
1115 machine_class
->valid_cpu_types
[i
])) {
1116 /* The user specificed CPU is in the valid field, we are
1123 if (!machine_class
->valid_cpu_types
[i
]) {
1124 /* The user specified CPU is not valid */
1125 error_report("Invalid CPU type: %s", machine
->cpu_type
);
1126 error_printf("The valid types are: %s",
1127 machine_class
->valid_cpu_types
[0]);
1128 for (i
= 1; machine_class
->valid_cpu_types
[i
]; i
++) {
1129 error_printf(", %s", machine_class
->valid_cpu_types
[i
]);
1137 machine_class
->init(machine
);
1140 static const TypeInfo machine_info
= {
1141 .name
= TYPE_MACHINE
,
1142 .parent
= TYPE_OBJECT
,
1144 .class_size
= sizeof(MachineClass
),
1145 .class_init
= machine_class_init
,
1146 .class_base_init
= machine_class_base_init
,
1147 .instance_size
= sizeof(MachineState
),
1148 .instance_init
= machine_initfn
,
1149 .instance_finalize
= machine_finalize
,
1152 static void machine_register_types(void)
1154 type_register_static(&machine_info
);
1157 type_init(machine_register_types
)