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"
30 GlobalProperty hw_compat_4_1
[] = {};
31 const size_t hw_compat_4_1_len
= G_N_ELEMENTS(hw_compat_4_1
);
33 GlobalProperty hw_compat_4_0
[] = {
34 { "VGA", "edid", "false" },
35 { "secondary-vga", "edid", "false" },
36 { "bochs-display", "edid", "false" },
37 { "virtio-vga", "edid", "false" },
38 { "virtio-gpu", "edid", "false" },
39 { "virtio-device", "use-started", "false" },
40 { "virtio-balloon-device", "qemu-4-0-config-size", "true" },
41 { "pl031", "migrate-tick-offset", "false" },
43 const size_t hw_compat_4_0_len
= G_N_ELEMENTS(hw_compat_4_0
);
45 GlobalProperty hw_compat_3_1
[] = {
46 { "pcie-root-port", "x-speed", "2_5" },
47 { "pcie-root-port", "x-width", "1" },
48 { "memory-backend-file", "x-use-canonical-path-for-ramblock-id", "true" },
49 { "memory-backend-memfd", "x-use-canonical-path-for-ramblock-id", "true" },
50 { "tpm-crb", "ppi", "false" },
51 { "tpm-tis", "ppi", "false" },
52 { "usb-kbd", "serial", "42" },
53 { "usb-mouse", "serial", "42" },
54 { "usb-tablet", "serial", "42" },
55 { "virtio-blk-device", "discard", "false" },
56 { "virtio-blk-device", "write-zeroes", "false" },
57 { "virtio-balloon-device", "qemu-4-0-config-size", "false" },
58 { "pcie-root-port-base", "disable-acs", "true" }, /* Added in 4.1 */
60 const size_t hw_compat_3_1_len
= G_N_ELEMENTS(hw_compat_3_1
);
62 GlobalProperty hw_compat_3_0
[] = {};
63 const size_t hw_compat_3_0_len
= G_N_ELEMENTS(hw_compat_3_0
);
65 GlobalProperty hw_compat_2_12
[] = {
66 { "migration", "decompress-error-check", "off" },
67 { "hda-audio", "use-timer", "false" },
68 { "cirrus-vga", "global-vmstate", "true" },
69 { "VGA", "global-vmstate", "true" },
70 { "vmware-svga", "global-vmstate", "true" },
71 { "qxl-vga", "global-vmstate", "true" },
73 const size_t hw_compat_2_12_len
= G_N_ELEMENTS(hw_compat_2_12
);
75 GlobalProperty hw_compat_2_11
[] = {
76 { "hpet", "hpet-offset-saved", "false" },
77 { "virtio-blk-pci", "vectors", "2" },
78 { "vhost-user-blk-pci", "vectors", "2" },
79 { "e1000", "migrate_tso_props", "off" },
81 const size_t hw_compat_2_11_len
= G_N_ELEMENTS(hw_compat_2_11
);
83 GlobalProperty hw_compat_2_10
[] = {
84 { "virtio-mouse-device", "wheel-axis", "false" },
85 { "virtio-tablet-device", "wheel-axis", "false" },
87 const size_t hw_compat_2_10_len
= G_N_ELEMENTS(hw_compat_2_10
);
89 GlobalProperty hw_compat_2_9
[] = {
90 { "pci-bridge", "shpc", "off" },
91 { "intel-iommu", "pt", "off" },
92 { "virtio-net-device", "x-mtu-bypass-backend", "off" },
93 { "pcie-root-port", "x-migrate-msix", "false" },
95 const size_t hw_compat_2_9_len
= G_N_ELEMENTS(hw_compat_2_9
);
97 GlobalProperty hw_compat_2_8
[] = {
98 { "fw_cfg_mem", "x-file-slots", "0x10" },
99 { "fw_cfg_io", "x-file-slots", "0x10" },
100 { "pflash_cfi01", "old-multiple-chip-handling", "on" },
101 { "pci-bridge", "shpc", "on" },
102 { TYPE_PCI_DEVICE
, "x-pcie-extcap-init", "off" },
103 { "virtio-pci", "x-pcie-deverr-init", "off" },
104 { "virtio-pci", "x-pcie-lnkctl-init", "off" },
105 { "virtio-pci", "x-pcie-pm-init", "off" },
106 { "cirrus-vga", "vgamem_mb", "8" },
107 { "isa-cirrus-vga", "vgamem_mb", "8" },
109 const size_t hw_compat_2_8_len
= G_N_ELEMENTS(hw_compat_2_8
);
111 GlobalProperty hw_compat_2_7
[] = {
112 { "virtio-pci", "page-per-vq", "on" },
113 { "virtio-serial-device", "emergency-write", "off" },
114 { "ioapic", "version", "0x11" },
115 { "intel-iommu", "x-buggy-eim", "true" },
116 { "virtio-pci", "x-ignore-backend-features", "on" },
118 const size_t hw_compat_2_7_len
= G_N_ELEMENTS(hw_compat_2_7
);
120 GlobalProperty hw_compat_2_6
[] = {
121 { "virtio-mmio", "format_transport_address", "off" },
122 /* Optional because not all virtio-pci devices support legacy mode */
123 { "virtio-pci", "disable-modern", "on", .optional
= true },
124 { "virtio-pci", "disable-legacy", "off", .optional
= true },
126 const size_t hw_compat_2_6_len
= G_N_ELEMENTS(hw_compat_2_6
);
128 GlobalProperty hw_compat_2_5
[] = {
129 { "isa-fdc", "fallback", "144" },
130 { "pvscsi", "x-old-pci-configuration", "on" },
131 { "pvscsi", "x-disable-pcie", "on" },
132 { "vmxnet3", "x-old-msi-offsets", "on" },
133 { "vmxnet3", "x-disable-pcie", "on" },
135 const size_t hw_compat_2_5_len
= G_N_ELEMENTS(hw_compat_2_5
);
137 GlobalProperty hw_compat_2_4
[] = {
138 { "virtio-blk-device", "scsi", "true" },
139 { "e1000", "extra_mac_registers", "off" },
140 { "virtio-pci", "x-disable-pcie", "on" },
141 { "virtio-pci", "migrate-extra", "off" },
142 { "fw_cfg_mem", "dma_enabled", "off" },
143 { "fw_cfg_io", "dma_enabled", "off" }
145 const size_t hw_compat_2_4_len
= G_N_ELEMENTS(hw_compat_2_4
);
147 GlobalProperty hw_compat_2_3
[] = {
148 { "virtio-blk-pci", "any_layout", "off" },
149 { "virtio-balloon-pci", "any_layout", "off" },
150 { "virtio-serial-pci", "any_layout", "off" },
151 { "virtio-9p-pci", "any_layout", "off" },
152 { "virtio-rng-pci", "any_layout", "off" },
153 { TYPE_PCI_DEVICE
, "x-pcie-lnksta-dllla", "off" },
154 { "migration", "send-configuration", "off" },
155 { "migration", "send-section-footer", "off" },
156 { "migration", "store-global-state", "off" },
158 const size_t hw_compat_2_3_len
= G_N_ELEMENTS(hw_compat_2_3
);
160 GlobalProperty hw_compat_2_2
[] = {};
161 const size_t hw_compat_2_2_len
= G_N_ELEMENTS(hw_compat_2_2
);
163 GlobalProperty hw_compat_2_1
[] = {
164 { "intel-hda", "old_msi_addr", "on" },
165 { "VGA", "qemu-extended-regs", "off" },
166 { "secondary-vga", "qemu-extended-regs", "off" },
167 { "virtio-scsi-pci", "any_layout", "off" },
168 { "usb-mouse", "usb_version", "1" },
169 { "usb-kbd", "usb_version", "1" },
170 { "virtio-pci", "virtio-pci-bus-master-bug-migration", "on" },
172 const size_t hw_compat_2_1_len
= G_N_ELEMENTS(hw_compat_2_1
);
174 static char *machine_get_accel(Object
*obj
, Error
**errp
)
176 MachineState
*ms
= MACHINE(obj
);
178 return g_strdup(ms
->accel
);
181 static void machine_set_accel(Object
*obj
, const char *value
, Error
**errp
)
183 MachineState
*ms
= MACHINE(obj
);
186 ms
->accel
= g_strdup(value
);
189 static void machine_set_kernel_irqchip(Object
*obj
, Visitor
*v
,
190 const char *name
, void *opaque
,
194 MachineState
*ms
= MACHINE(obj
);
197 visit_type_OnOffSplit(v
, name
, &mode
, &err
);
199 error_propagate(errp
, err
);
203 case ON_OFF_SPLIT_ON
:
204 ms
->kernel_irqchip_allowed
= true;
205 ms
->kernel_irqchip_required
= true;
206 ms
->kernel_irqchip_split
= false;
208 case ON_OFF_SPLIT_OFF
:
209 ms
->kernel_irqchip_allowed
= false;
210 ms
->kernel_irqchip_required
= false;
211 ms
->kernel_irqchip_split
= false;
213 case ON_OFF_SPLIT_SPLIT
:
214 ms
->kernel_irqchip_allowed
= true;
215 ms
->kernel_irqchip_required
= true;
216 ms
->kernel_irqchip_split
= true;
219 /* The value was checked in visit_type_OnOffSplit() above. If
220 * we get here, then something is wrong in QEMU.
227 static void machine_get_kvm_shadow_mem(Object
*obj
, Visitor
*v
,
228 const char *name
, void *opaque
,
231 MachineState
*ms
= MACHINE(obj
);
232 int64_t value
= ms
->kvm_shadow_mem
;
234 visit_type_int(v
, name
, &value
, errp
);
237 static void machine_set_kvm_shadow_mem(Object
*obj
, Visitor
*v
,
238 const char *name
, void *opaque
,
241 MachineState
*ms
= MACHINE(obj
);
245 visit_type_int(v
, name
, &value
, &error
);
247 error_propagate(errp
, error
);
251 ms
->kvm_shadow_mem
= value
;
254 static char *machine_get_kernel(Object
*obj
, Error
**errp
)
256 MachineState
*ms
= MACHINE(obj
);
258 return g_strdup(ms
->kernel_filename
);
261 static void machine_set_kernel(Object
*obj
, const char *value
, Error
**errp
)
263 MachineState
*ms
= MACHINE(obj
);
265 g_free(ms
->kernel_filename
);
266 ms
->kernel_filename
= g_strdup(value
);
269 static char *machine_get_initrd(Object
*obj
, Error
**errp
)
271 MachineState
*ms
= MACHINE(obj
);
273 return g_strdup(ms
->initrd_filename
);
276 static void machine_set_initrd(Object
*obj
, const char *value
, Error
**errp
)
278 MachineState
*ms
= MACHINE(obj
);
280 g_free(ms
->initrd_filename
);
281 ms
->initrd_filename
= g_strdup(value
);
284 static char *machine_get_append(Object
*obj
, Error
**errp
)
286 MachineState
*ms
= MACHINE(obj
);
288 return g_strdup(ms
->kernel_cmdline
);
291 static void machine_set_append(Object
*obj
, const char *value
, Error
**errp
)
293 MachineState
*ms
= MACHINE(obj
);
295 g_free(ms
->kernel_cmdline
);
296 ms
->kernel_cmdline
= g_strdup(value
);
299 static char *machine_get_dtb(Object
*obj
, Error
**errp
)
301 MachineState
*ms
= MACHINE(obj
);
303 return g_strdup(ms
->dtb
);
306 static void machine_set_dtb(Object
*obj
, const char *value
, Error
**errp
)
308 MachineState
*ms
= MACHINE(obj
);
311 ms
->dtb
= g_strdup(value
);
314 static char *machine_get_dumpdtb(Object
*obj
, Error
**errp
)
316 MachineState
*ms
= MACHINE(obj
);
318 return g_strdup(ms
->dumpdtb
);
321 static void machine_set_dumpdtb(Object
*obj
, const char *value
, Error
**errp
)
323 MachineState
*ms
= MACHINE(obj
);
326 ms
->dumpdtb
= g_strdup(value
);
329 static void machine_get_phandle_start(Object
*obj
, Visitor
*v
,
330 const char *name
, void *opaque
,
333 MachineState
*ms
= MACHINE(obj
);
334 int64_t value
= ms
->phandle_start
;
336 visit_type_int(v
, name
, &value
, errp
);
339 static void machine_set_phandle_start(Object
*obj
, Visitor
*v
,
340 const char *name
, void *opaque
,
343 MachineState
*ms
= MACHINE(obj
);
347 visit_type_int(v
, name
, &value
, &error
);
349 error_propagate(errp
, error
);
353 ms
->phandle_start
= value
;
356 static char *machine_get_dt_compatible(Object
*obj
, Error
**errp
)
358 MachineState
*ms
= MACHINE(obj
);
360 return g_strdup(ms
->dt_compatible
);
363 static void machine_set_dt_compatible(Object
*obj
, const char *value
, Error
**errp
)
365 MachineState
*ms
= MACHINE(obj
);
367 g_free(ms
->dt_compatible
);
368 ms
->dt_compatible
= g_strdup(value
);
371 static bool machine_get_dump_guest_core(Object
*obj
, Error
**errp
)
373 MachineState
*ms
= MACHINE(obj
);
375 return ms
->dump_guest_core
;
378 static void machine_set_dump_guest_core(Object
*obj
, bool value
, Error
**errp
)
380 MachineState
*ms
= MACHINE(obj
);
382 ms
->dump_guest_core
= value
;
385 static bool machine_get_mem_merge(Object
*obj
, Error
**errp
)
387 MachineState
*ms
= MACHINE(obj
);
389 return ms
->mem_merge
;
392 static void machine_set_mem_merge(Object
*obj
, bool value
, Error
**errp
)
394 MachineState
*ms
= MACHINE(obj
);
396 ms
->mem_merge
= value
;
399 static bool machine_get_usb(Object
*obj
, Error
**errp
)
401 MachineState
*ms
= MACHINE(obj
);
406 static void machine_set_usb(Object
*obj
, bool value
, Error
**errp
)
408 MachineState
*ms
= MACHINE(obj
);
411 ms
->usb_disabled
= !value
;
414 static bool machine_get_graphics(Object
*obj
, Error
**errp
)
416 MachineState
*ms
= MACHINE(obj
);
418 return ms
->enable_graphics
;
421 static void machine_set_graphics(Object
*obj
, bool value
, Error
**errp
)
423 MachineState
*ms
= MACHINE(obj
);
425 ms
->enable_graphics
= value
;
428 static bool machine_get_igd_gfx_passthru(Object
*obj
, Error
**errp
)
430 MachineState
*ms
= MACHINE(obj
);
432 return ms
->igd_gfx_passthru
;
435 static void machine_set_igd_gfx_passthru(Object
*obj
, bool value
, Error
**errp
)
437 MachineState
*ms
= MACHINE(obj
);
439 ms
->igd_gfx_passthru
= value
;
442 static char *machine_get_firmware(Object
*obj
, Error
**errp
)
444 MachineState
*ms
= MACHINE(obj
);
446 return g_strdup(ms
->firmware
);
449 static void machine_set_firmware(Object
*obj
, const char *value
, Error
**errp
)
451 MachineState
*ms
= MACHINE(obj
);
453 g_free(ms
->firmware
);
454 ms
->firmware
= g_strdup(value
);
457 static void machine_set_suppress_vmdesc(Object
*obj
, bool value
, Error
**errp
)
459 MachineState
*ms
= MACHINE(obj
);
461 ms
->suppress_vmdesc
= value
;
464 static bool machine_get_suppress_vmdesc(Object
*obj
, Error
**errp
)
466 MachineState
*ms
= MACHINE(obj
);
468 return ms
->suppress_vmdesc
;
471 static void machine_set_enforce_config_section(Object
*obj
, bool value
,
474 MachineState
*ms
= MACHINE(obj
);
476 warn_report("enforce-config-section is deprecated, please use "
477 "-global migration.send-configuration=on|off instead");
479 ms
->enforce_config_section
= value
;
482 static bool machine_get_enforce_config_section(Object
*obj
, Error
**errp
)
484 MachineState
*ms
= MACHINE(obj
);
486 return ms
->enforce_config_section
;
489 static char *machine_get_memory_encryption(Object
*obj
, Error
**errp
)
491 MachineState
*ms
= MACHINE(obj
);
493 return g_strdup(ms
->memory_encryption
);
496 static void machine_set_memory_encryption(Object
*obj
, const char *value
,
499 MachineState
*ms
= MACHINE(obj
);
501 g_free(ms
->memory_encryption
);
502 ms
->memory_encryption
= g_strdup(value
);
505 static bool machine_get_nvdimm(Object
*obj
, Error
**errp
)
507 MachineState
*ms
= MACHINE(obj
);
509 return ms
->nvdimms_state
->is_enabled
;
512 static void machine_set_nvdimm(Object
*obj
, bool value
, Error
**errp
)
514 MachineState
*ms
= MACHINE(obj
);
516 ms
->nvdimms_state
->is_enabled
= value
;
519 static char *machine_get_nvdimm_persistence(Object
*obj
, Error
**errp
)
521 MachineState
*ms
= MACHINE(obj
);
523 return g_strdup(ms
->nvdimms_state
->persistence_string
);
526 static void machine_set_nvdimm_persistence(Object
*obj
, const char *value
,
529 MachineState
*ms
= MACHINE(obj
);
530 NVDIMMState
*nvdimms_state
= ms
->nvdimms_state
;
532 if (strcmp(value
, "cpu") == 0) {
533 nvdimms_state
->persistence
= 3;
534 } else if (strcmp(value
, "mem-ctrl") == 0) {
535 nvdimms_state
->persistence
= 2;
537 error_setg(errp
, "-machine nvdimm-persistence=%s: unsupported option",
542 g_free(nvdimms_state
->persistence_string
);
543 nvdimms_state
->persistence_string
= g_strdup(value
);
546 void machine_class_allow_dynamic_sysbus_dev(MachineClass
*mc
, const char *type
)
548 strList
*item
= g_new0(strList
, 1);
550 item
->value
= g_strdup(type
);
551 item
->next
= mc
->allowed_dynamic_sysbus_devices
;
552 mc
->allowed_dynamic_sysbus_devices
= item
;
555 static void validate_sysbus_device(SysBusDevice
*sbdev
, void *opaque
)
557 MachineState
*machine
= opaque
;
558 MachineClass
*mc
= MACHINE_GET_CLASS(machine
);
559 bool allowed
= false;
562 for (wl
= mc
->allowed_dynamic_sysbus_devices
;
565 allowed
|= !!object_dynamic_cast(OBJECT(sbdev
), wl
->value
);
569 error_report("Option '-device %s' cannot be handled by this machine",
570 object_class_get_name(object_get_class(OBJECT(sbdev
))));
575 static void machine_init_notify(Notifier
*notifier
, void *data
)
577 MachineState
*machine
= MACHINE(qdev_get_machine());
580 * Loop through all dynamically created sysbus devices and check if they are
581 * all allowed. If a device is not allowed, error out.
583 foreach_dynamic_sysbus_device(validate_sysbus_device
, machine
);
586 HotpluggableCPUList
*machine_query_hotpluggable_cpus(MachineState
*machine
)
589 HotpluggableCPUList
*head
= NULL
;
590 MachineClass
*mc
= MACHINE_GET_CLASS(machine
);
592 /* force board to initialize possible_cpus if it hasn't been done yet */
593 mc
->possible_cpu_arch_ids(machine
);
595 for (i
= 0; i
< machine
->possible_cpus
->len
; i
++) {
597 HotpluggableCPUList
*list_item
= g_new0(typeof(*list_item
), 1);
598 HotpluggableCPU
*cpu_item
= g_new0(typeof(*cpu_item
), 1);
600 cpu_item
->type
= g_strdup(machine
->possible_cpus
->cpus
[i
].type
);
601 cpu_item
->vcpus_count
= machine
->possible_cpus
->cpus
[i
].vcpus_count
;
602 cpu_item
->props
= g_memdup(&machine
->possible_cpus
->cpus
[i
].props
,
603 sizeof(*cpu_item
->props
));
605 cpu
= machine
->possible_cpus
->cpus
[i
].cpu
;
607 cpu_item
->has_qom_path
= true;
608 cpu_item
->qom_path
= object_get_canonical_path(cpu
);
610 list_item
->value
= cpu_item
;
611 list_item
->next
= head
;
618 * machine_set_cpu_numa_node:
619 * @machine: machine object to modify
620 * @props: specifies which cpu objects to assign to
621 * numa node specified by @props.node_id
622 * @errp: if an error occurs, a pointer to an area to store the error
624 * Associate NUMA node specified by @props.node_id with cpu slots that
625 * match socket/core/thread-ids specified by @props. It's recommended to use
626 * query-hotpluggable-cpus.props values to specify affected cpu slots,
627 * which would lead to exact 1:1 mapping of cpu slots to NUMA node.
629 * However for CLI convenience it's possible to pass in subset of properties,
630 * which would affect all cpu slots that match it.
632 * -smp 4,cores=2,sockets=2 -numa node,nodeid=0 -numa node,nodeid=1 \
633 * -numa cpu,node-id=0,socket_id=0 \
634 * -numa cpu,node-id=1,socket_id=1
635 * will assign all child cores of socket 0 to node 0 and
636 * of socket 1 to node 1.
638 * On attempt of reassigning (already assigned) cpu slot to another NUMA node,
640 * Empty subset is disallowed and function will return with error in this case.
642 void machine_set_cpu_numa_node(MachineState
*machine
,
643 const CpuInstanceProperties
*props
, Error
**errp
)
645 MachineClass
*mc
= MACHINE_GET_CLASS(machine
);
649 if (!mc
->possible_cpu_arch_ids
) {
650 error_setg(errp
, "mapping of CPUs to NUMA node is not supported");
654 /* disabling node mapping is not supported, forbid it */
655 assert(props
->has_node_id
);
657 /* force board to initialize possible_cpus if it hasn't been done yet */
658 mc
->possible_cpu_arch_ids(machine
);
660 for (i
= 0; i
< machine
->possible_cpus
->len
; i
++) {
661 CPUArchId
*slot
= &machine
->possible_cpus
->cpus
[i
];
663 /* reject unsupported by board properties */
664 if (props
->has_thread_id
&& !slot
->props
.has_thread_id
) {
665 error_setg(errp
, "thread-id is not supported");
669 if (props
->has_core_id
&& !slot
->props
.has_core_id
) {
670 error_setg(errp
, "core-id is not supported");
674 if (props
->has_socket_id
&& !slot
->props
.has_socket_id
) {
675 error_setg(errp
, "socket-id is not supported");
679 if (props
->has_die_id
&& !slot
->props
.has_die_id
) {
680 error_setg(errp
, "die-id is not supported");
684 /* skip slots with explicit mismatch */
685 if (props
->has_thread_id
&& props
->thread_id
!= slot
->props
.thread_id
) {
689 if (props
->has_core_id
&& props
->core_id
!= slot
->props
.core_id
) {
693 if (props
->has_die_id
&& props
->die_id
!= slot
->props
.die_id
) {
697 if (props
->has_socket_id
&& props
->socket_id
!= slot
->props
.socket_id
) {
701 /* reject assignment if slot is already assigned, for compatibility
702 * of legacy cpu_index mapping with SPAPR core based mapping do not
703 * error out if cpu thread and matched core have the same node-id */
704 if (slot
->props
.has_node_id
&&
705 slot
->props
.node_id
!= props
->node_id
) {
706 error_setg(errp
, "CPU is already assigned to node-id: %" PRId64
,
707 slot
->props
.node_id
);
711 /* assign slot to node as it's matched '-numa cpu' key */
713 slot
->props
.node_id
= props
->node_id
;
714 slot
->props
.has_node_id
= props
->has_node_id
;
718 error_setg(errp
, "no match found");
722 static void smp_parse(MachineState
*ms
, QemuOpts
*opts
)
725 unsigned cpus
= qemu_opt_get_number(opts
, "cpus", 0);
726 unsigned sockets
= qemu_opt_get_number(opts
, "sockets", 0);
727 unsigned cores
= qemu_opt_get_number(opts
, "cores", 0);
728 unsigned threads
= qemu_opt_get_number(opts
, "threads", 0);
730 /* compute missing values, prefer sockets over cores over threads */
731 if (cpus
== 0 || sockets
== 0) {
732 cores
= cores
> 0 ? cores
: 1;
733 threads
= threads
> 0 ? threads
: 1;
735 sockets
= sockets
> 0 ? sockets
: 1;
736 cpus
= cores
* threads
* sockets
;
739 qemu_opt_get_number(opts
, "maxcpus", cpus
);
740 sockets
= ms
->smp
.max_cpus
/ (cores
* threads
);
742 } else if (cores
== 0) {
743 threads
= threads
> 0 ? threads
: 1;
744 cores
= cpus
/ (sockets
* threads
);
745 cores
= cores
> 0 ? cores
: 1;
746 } else if (threads
== 0) {
747 threads
= cpus
/ (cores
* sockets
);
748 threads
= threads
> 0 ? threads
: 1;
749 } else if (sockets
* cores
* threads
< cpus
) {
750 error_report("cpu topology: "
751 "sockets (%u) * cores (%u) * threads (%u) < "
753 sockets
, cores
, threads
, cpus
);
758 qemu_opt_get_number(opts
, "maxcpus", cpus
);
760 if (ms
->smp
.max_cpus
< cpus
) {
761 error_report("maxcpus must be equal to or greater than smp");
765 if (sockets
* cores
* threads
> ms
->smp
.max_cpus
) {
766 error_report("cpu topology: "
767 "sockets (%u) * cores (%u) * threads (%u) > "
769 sockets
, cores
, threads
,
774 if (sockets
* cores
* threads
!= ms
->smp
.max_cpus
) {
775 warn_report("Invalid CPU topology deprecated: "
776 "sockets (%u) * cores (%u) * threads (%u) "
778 sockets
, cores
, threads
,
783 ms
->smp
.cores
= cores
;
784 ms
->smp
.threads
= threads
;
787 if (ms
->smp
.cpus
> 1) {
788 Error
*blocker
= NULL
;
789 error_setg(&blocker
, QERR_REPLAY_NOT_SUPPORTED
, "smp");
790 replay_add_blocker(blocker
);
794 static void machine_class_init(ObjectClass
*oc
, void *data
)
796 MachineClass
*mc
= MACHINE_CLASS(oc
);
798 /* Default 128 MB as guest ram size */
799 mc
->default_ram_size
= 128 * MiB
;
800 mc
->rom_file_has_mr
= true;
801 mc
->smp_parse
= smp_parse
;
803 /* numa node memory size aligned on 8MB by default.
804 * On Linux, each node's border has to be 8MB aligned
806 mc
->numa_mem_align_shift
= 23;
807 mc
->numa_auto_assign_ram
= numa_default_auto_assign_ram
;
809 object_class_property_add_str(oc
, "accel",
810 machine_get_accel
, machine_set_accel
, &error_abort
);
811 object_class_property_set_description(oc
, "accel",
812 "Accelerator list", &error_abort
);
814 object_class_property_add(oc
, "kernel-irqchip", "on|off|split",
815 NULL
, machine_set_kernel_irqchip
,
816 NULL
, NULL
, &error_abort
);
817 object_class_property_set_description(oc
, "kernel-irqchip",
818 "Configure KVM in-kernel irqchip", &error_abort
);
820 object_class_property_add(oc
, "kvm-shadow-mem", "int",
821 machine_get_kvm_shadow_mem
, machine_set_kvm_shadow_mem
,
822 NULL
, NULL
, &error_abort
);
823 object_class_property_set_description(oc
, "kvm-shadow-mem",
824 "KVM shadow MMU size", &error_abort
);
826 object_class_property_add_str(oc
, "kernel",
827 machine_get_kernel
, machine_set_kernel
, &error_abort
);
828 object_class_property_set_description(oc
, "kernel",
829 "Linux kernel image file", &error_abort
);
831 object_class_property_add_str(oc
, "initrd",
832 machine_get_initrd
, machine_set_initrd
, &error_abort
);
833 object_class_property_set_description(oc
, "initrd",
834 "Linux initial ramdisk file", &error_abort
);
836 object_class_property_add_str(oc
, "append",
837 machine_get_append
, machine_set_append
, &error_abort
);
838 object_class_property_set_description(oc
, "append",
839 "Linux kernel command line", &error_abort
);
841 object_class_property_add_str(oc
, "dtb",
842 machine_get_dtb
, machine_set_dtb
, &error_abort
);
843 object_class_property_set_description(oc
, "dtb",
844 "Linux kernel device tree file", &error_abort
);
846 object_class_property_add_str(oc
, "dumpdtb",
847 machine_get_dumpdtb
, machine_set_dumpdtb
, &error_abort
);
848 object_class_property_set_description(oc
, "dumpdtb",
849 "Dump current dtb to a file and quit", &error_abort
);
851 object_class_property_add(oc
, "phandle-start", "int",
852 machine_get_phandle_start
, machine_set_phandle_start
,
853 NULL
, NULL
, &error_abort
);
854 object_class_property_set_description(oc
, "phandle-start",
855 "The first phandle ID we may generate dynamically", &error_abort
);
857 object_class_property_add_str(oc
, "dt-compatible",
858 machine_get_dt_compatible
, machine_set_dt_compatible
, &error_abort
);
859 object_class_property_set_description(oc
, "dt-compatible",
860 "Overrides the \"compatible\" property of the dt root node",
863 object_class_property_add_bool(oc
, "dump-guest-core",
864 machine_get_dump_guest_core
, machine_set_dump_guest_core
, &error_abort
);
865 object_class_property_set_description(oc
, "dump-guest-core",
866 "Include guest memory in a core dump", &error_abort
);
868 object_class_property_add_bool(oc
, "mem-merge",
869 machine_get_mem_merge
, machine_set_mem_merge
, &error_abort
);
870 object_class_property_set_description(oc
, "mem-merge",
871 "Enable/disable memory merge support", &error_abort
);
873 object_class_property_add_bool(oc
, "usb",
874 machine_get_usb
, machine_set_usb
, &error_abort
);
875 object_class_property_set_description(oc
, "usb",
876 "Set on/off to enable/disable usb", &error_abort
);
878 object_class_property_add_bool(oc
, "graphics",
879 machine_get_graphics
, machine_set_graphics
, &error_abort
);
880 object_class_property_set_description(oc
, "graphics",
881 "Set on/off to enable/disable graphics emulation", &error_abort
);
883 object_class_property_add_bool(oc
, "igd-passthru",
884 machine_get_igd_gfx_passthru
, machine_set_igd_gfx_passthru
,
886 object_class_property_set_description(oc
, "igd-passthru",
887 "Set on/off to enable/disable igd passthrou", &error_abort
);
889 object_class_property_add_str(oc
, "firmware",
890 machine_get_firmware
, machine_set_firmware
,
892 object_class_property_set_description(oc
, "firmware",
893 "Firmware image", &error_abort
);
895 object_class_property_add_bool(oc
, "suppress-vmdesc",
896 machine_get_suppress_vmdesc
, machine_set_suppress_vmdesc
,
898 object_class_property_set_description(oc
, "suppress-vmdesc",
899 "Set on to disable self-describing migration", &error_abort
);
901 object_class_property_add_bool(oc
, "enforce-config-section",
902 machine_get_enforce_config_section
, machine_set_enforce_config_section
,
904 object_class_property_set_description(oc
, "enforce-config-section",
905 "Set on to enforce configuration section migration", &error_abort
);
907 object_class_property_add_str(oc
, "memory-encryption",
908 machine_get_memory_encryption
, machine_set_memory_encryption
,
910 object_class_property_set_description(oc
, "memory-encryption",
911 "Set memory encryption object to use", &error_abort
);
914 static void machine_class_base_init(ObjectClass
*oc
, void *data
)
916 if (!object_class_is_abstract(oc
)) {
917 MachineClass
*mc
= MACHINE_CLASS(oc
);
918 const char *cname
= object_class_get_name(oc
);
919 assert(g_str_has_suffix(cname
, TYPE_MACHINE_SUFFIX
));
920 mc
->name
= g_strndup(cname
,
921 strlen(cname
) - strlen(TYPE_MACHINE_SUFFIX
));
922 mc
->compat_props
= g_ptr_array_new();
926 static void machine_initfn(Object
*obj
)
928 MachineState
*ms
= MACHINE(obj
);
929 MachineClass
*mc
= MACHINE_GET_CLASS(obj
);
931 ms
->kernel_irqchip_allowed
= true;
932 ms
->kernel_irqchip_split
= mc
->default_kernel_irqchip_split
;
933 ms
->kvm_shadow_mem
= -1;
934 ms
->dump_guest_core
= true;
935 ms
->mem_merge
= true;
936 ms
->enable_graphics
= true;
938 if (mc
->nvdimm_supported
) {
939 Object
*obj
= OBJECT(ms
);
941 ms
->nvdimms_state
= g_new0(NVDIMMState
, 1);
942 object_property_add_bool(obj
, "nvdimm",
943 machine_get_nvdimm
, machine_set_nvdimm
,
945 object_property_set_description(obj
, "nvdimm",
946 "Set on/off to enable/disable "
947 "NVDIMM instantiation", NULL
);
949 object_property_add_str(obj
, "nvdimm-persistence",
950 machine_get_nvdimm_persistence
,
951 machine_set_nvdimm_persistence
,
953 object_property_set_description(obj
, "nvdimm-persistence",
954 "Set NVDIMM persistence"
955 "Valid values are cpu, mem-ctrl",
960 /* Register notifier when init is done for sysbus sanity checks */
961 ms
->sysbus_notifier
.notify
= machine_init_notify
;
962 qemu_add_machine_init_done_notifier(&ms
->sysbus_notifier
);
965 static void machine_finalize(Object
*obj
)
967 MachineState
*ms
= MACHINE(obj
);
970 g_free(ms
->kernel_filename
);
971 g_free(ms
->initrd_filename
);
972 g_free(ms
->kernel_cmdline
);
975 g_free(ms
->dt_compatible
);
976 g_free(ms
->firmware
);
977 g_free(ms
->device_memory
);
978 g_free(ms
->nvdimms_state
);
981 bool machine_usb(MachineState
*machine
)
986 bool machine_kernel_irqchip_allowed(MachineState
*machine
)
988 return machine
->kernel_irqchip_allowed
;
991 bool machine_kernel_irqchip_required(MachineState
*machine
)
993 return machine
->kernel_irqchip_required
;
996 bool machine_kernel_irqchip_split(MachineState
*machine
)
998 return machine
->kernel_irqchip_split
;
1001 int machine_kvm_shadow_mem(MachineState
*machine
)
1003 return machine
->kvm_shadow_mem
;
1006 int machine_phandle_start(MachineState
*machine
)
1008 return machine
->phandle_start
;
1011 bool machine_dump_guest_core(MachineState
*machine
)
1013 return machine
->dump_guest_core
;
1016 bool machine_mem_merge(MachineState
*machine
)
1018 return machine
->mem_merge
;
1021 static char *cpu_slot_to_string(const CPUArchId
*cpu
)
1023 GString
*s
= g_string_new(NULL
);
1024 if (cpu
->props
.has_socket_id
) {
1025 g_string_append_printf(s
, "socket-id: %"PRId64
, cpu
->props
.socket_id
);
1027 if (cpu
->props
.has_die_id
) {
1028 g_string_append_printf(s
, "die-id: %"PRId64
, cpu
->props
.die_id
);
1030 if (cpu
->props
.has_core_id
) {
1032 g_string_append_printf(s
, ", ");
1034 g_string_append_printf(s
, "core-id: %"PRId64
, cpu
->props
.core_id
);
1036 if (cpu
->props
.has_thread_id
) {
1038 g_string_append_printf(s
, ", ");
1040 g_string_append_printf(s
, "thread-id: %"PRId64
, cpu
->props
.thread_id
);
1042 return g_string_free(s
, false);
1045 static void machine_numa_finish_cpu_init(MachineState
*machine
)
1048 bool default_mapping
;
1049 GString
*s
= g_string_new(NULL
);
1050 MachineClass
*mc
= MACHINE_GET_CLASS(machine
);
1051 const CPUArchIdList
*possible_cpus
= mc
->possible_cpu_arch_ids(machine
);
1053 assert(nb_numa_nodes
);
1054 for (i
= 0; i
< possible_cpus
->len
; i
++) {
1055 if (possible_cpus
->cpus
[i
].props
.has_node_id
) {
1059 default_mapping
= (i
== possible_cpus
->len
);
1061 for (i
= 0; i
< possible_cpus
->len
; i
++) {
1062 const CPUArchId
*cpu_slot
= &possible_cpus
->cpus
[i
];
1064 if (!cpu_slot
->props
.has_node_id
) {
1065 /* fetch default mapping from board and enable it */
1066 CpuInstanceProperties props
= cpu_slot
->props
;
1068 props
.node_id
= mc
->get_default_cpu_node_id(machine
, i
);
1069 if (!default_mapping
) {
1070 /* record slots with not set mapping,
1071 * TODO: make it hard error in future */
1072 char *cpu_str
= cpu_slot_to_string(cpu_slot
);
1073 g_string_append_printf(s
, "%sCPU %d [%s]",
1074 s
->len
? ", " : "", i
, cpu_str
);
1077 /* non mapped cpus used to fallback to node 0 */
1081 props
.has_node_id
= true;
1082 machine_set_cpu_numa_node(machine
, &props
, &error_fatal
);
1085 if (s
->len
&& !qtest_enabled()) {
1086 warn_report("CPU(s) not present in any NUMA nodes: %s",
1088 warn_report("All CPU(s) up to maxcpus should be described "
1089 "in NUMA config, ability to start up with partial NUMA "
1090 "mappings is obsoleted and will be removed in future");
1092 g_string_free(s
, true);
1095 void machine_run_board_init(MachineState
*machine
)
1097 MachineClass
*machine_class
= MACHINE_GET_CLASS(machine
);
1099 numa_complete_configuration(machine
);
1100 if (nb_numa_nodes
) {
1101 machine_numa_finish_cpu_init(machine
);
1104 /* If the machine supports the valid_cpu_types check and the user
1105 * specified a CPU with -cpu check here that the user CPU is supported.
1107 if (machine_class
->valid_cpu_types
&& machine
->cpu_type
) {
1108 ObjectClass
*class = object_class_by_name(machine
->cpu_type
);
1111 for (i
= 0; machine_class
->valid_cpu_types
[i
]; i
++) {
1112 if (object_class_dynamic_cast(class,
1113 machine_class
->valid_cpu_types
[i
])) {
1114 /* The user specificed CPU is in the valid field, we are
1121 if (!machine_class
->valid_cpu_types
[i
]) {
1122 /* The user specified CPU is not valid */
1123 error_report("Invalid CPU type: %s", machine
->cpu_type
);
1124 error_printf("The valid types are: %s",
1125 machine_class
->valid_cpu_types
[0]);
1126 for (i
= 1; machine_class
->valid_cpu_types
[i
]; i
++) {
1127 error_printf(", %s", machine_class
->valid_cpu_types
[i
]);
1135 machine_class
->init(machine
);
1138 static const TypeInfo machine_info
= {
1139 .name
= TYPE_MACHINE
,
1140 .parent
= TYPE_OBJECT
,
1142 .class_size
= sizeof(MachineClass
),
1143 .class_init
= machine_class_init
,
1144 .class_base_init
= machine_class_base_init
,
1145 .instance_size
= sizeof(MachineState
),
1146 .instance_init
= machine_initfn
,
1147 .instance_finalize
= machine_finalize
,
1150 static void machine_register_types(void)
1152 type_register_static(&machine_info
);
1155 type_init(machine_register_types
)