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 { "pci-host-bridge", "x-config-reg-migration-enabled", "off" },
33 { "virtio-balloon-device", "page-poison", "false" },
34 { "vmport", "x-read-set-eax", "off" },
35 { "vmport", "x-signal-unsupported-cmd", "off" },
36 { "vmport", "x-report-vmx-type", "off" },
37 { "vmport", "x-cmds-v2", "off" },
39 const size_t hw_compat_5_0_len
= G_N_ELEMENTS(hw_compat_5_0
);
41 GlobalProperty hw_compat_4_2
[] = {
42 { "virtio-blk-device", "queue-size", "128"},
43 { "virtio-scsi-device", "virtqueue_size", "128"},
44 { "virtio-blk-device", "x-enable-wce-if-config-wce", "off" },
45 { "virtio-blk-device", "seg-max-adjust", "off"},
46 { "virtio-scsi-device", "seg_max_adjust", "off"},
47 { "vhost-blk-device", "seg_max_adjust", "off"},
48 { "usb-host", "suppress-remote-wake", "off" },
49 { "usb-redir", "suppress-remote-wake", "off" },
50 { "qxl", "revision", "4" },
51 { "qxl-vga", "revision", "4" },
52 { "fw_cfg", "acpi-mr-restore", "false" },
54 const size_t hw_compat_4_2_len
= G_N_ELEMENTS(hw_compat_4_2
);
56 GlobalProperty hw_compat_4_1
[] = {
57 { "virtio-pci", "x-pcie-flr-init", "off" },
58 { "virtio-device", "use-disabled-flag", "false" },
60 const size_t hw_compat_4_1_len
= G_N_ELEMENTS(hw_compat_4_1
);
62 GlobalProperty hw_compat_4_0
[] = {
63 { "VGA", "edid", "false" },
64 { "secondary-vga", "edid", "false" },
65 { "bochs-display", "edid", "false" },
66 { "virtio-vga", "edid", "false" },
67 { "virtio-gpu-device", "edid", "false" },
68 { "virtio-device", "use-started", "false" },
69 { "virtio-balloon-device", "qemu-4-0-config-size", "true" },
70 { "pl031", "migrate-tick-offset", "false" },
72 const size_t hw_compat_4_0_len
= G_N_ELEMENTS(hw_compat_4_0
);
74 GlobalProperty hw_compat_3_1
[] = {
75 { "pcie-root-port", "x-speed", "2_5" },
76 { "pcie-root-port", "x-width", "1" },
77 { "memory-backend-file", "x-use-canonical-path-for-ramblock-id", "true" },
78 { "memory-backend-memfd", "x-use-canonical-path-for-ramblock-id", "true" },
79 { "tpm-crb", "ppi", "false" },
80 { "tpm-tis", "ppi", "false" },
81 { "usb-kbd", "serial", "42" },
82 { "usb-mouse", "serial", "42" },
83 { "usb-tablet", "serial", "42" },
84 { "virtio-blk-device", "discard", "false" },
85 { "virtio-blk-device", "write-zeroes", "false" },
86 { "virtio-balloon-device", "qemu-4-0-config-size", "false" },
87 { "pcie-root-port-base", "disable-acs", "true" }, /* Added in 4.1 */
89 const size_t hw_compat_3_1_len
= G_N_ELEMENTS(hw_compat_3_1
);
91 GlobalProperty hw_compat_3_0
[] = {};
92 const size_t hw_compat_3_0_len
= G_N_ELEMENTS(hw_compat_3_0
);
94 GlobalProperty hw_compat_2_12
[] = {
95 { "migration", "decompress-error-check", "off" },
96 { "hda-audio", "use-timer", "false" },
97 { "cirrus-vga", "global-vmstate", "true" },
98 { "VGA", "global-vmstate", "true" },
99 { "vmware-svga", "global-vmstate", "true" },
100 { "qxl-vga", "global-vmstate", "true" },
102 const size_t hw_compat_2_12_len
= G_N_ELEMENTS(hw_compat_2_12
);
104 GlobalProperty hw_compat_2_11
[] = {
105 { "hpet", "hpet-offset-saved", "false" },
106 { "virtio-blk-pci", "vectors", "2" },
107 { "vhost-user-blk-pci", "vectors", "2" },
108 { "e1000", "migrate_tso_props", "off" },
110 const size_t hw_compat_2_11_len
= G_N_ELEMENTS(hw_compat_2_11
);
112 GlobalProperty hw_compat_2_10
[] = {
113 { "virtio-mouse-device", "wheel-axis", "false" },
114 { "virtio-tablet-device", "wheel-axis", "false" },
116 const size_t hw_compat_2_10_len
= G_N_ELEMENTS(hw_compat_2_10
);
118 GlobalProperty hw_compat_2_9
[] = {
119 { "pci-bridge", "shpc", "off" },
120 { "intel-iommu", "pt", "off" },
121 { "virtio-net-device", "x-mtu-bypass-backend", "off" },
122 { "pcie-root-port", "x-migrate-msix", "false" },
124 const size_t hw_compat_2_9_len
= G_N_ELEMENTS(hw_compat_2_9
);
126 GlobalProperty hw_compat_2_8
[] = {
127 { "fw_cfg_mem", "x-file-slots", "0x10" },
128 { "fw_cfg_io", "x-file-slots", "0x10" },
129 { "pflash_cfi01", "old-multiple-chip-handling", "on" },
130 { "pci-bridge", "shpc", "on" },
131 { TYPE_PCI_DEVICE
, "x-pcie-extcap-init", "off" },
132 { "virtio-pci", "x-pcie-deverr-init", "off" },
133 { "virtio-pci", "x-pcie-lnkctl-init", "off" },
134 { "virtio-pci", "x-pcie-pm-init", "off" },
135 { "cirrus-vga", "vgamem_mb", "8" },
136 { "isa-cirrus-vga", "vgamem_mb", "8" },
138 const size_t hw_compat_2_8_len
= G_N_ELEMENTS(hw_compat_2_8
);
140 GlobalProperty hw_compat_2_7
[] = {
141 { "virtio-pci", "page-per-vq", "on" },
142 { "virtio-serial-device", "emergency-write", "off" },
143 { "ioapic", "version", "0x11" },
144 { "intel-iommu", "x-buggy-eim", "true" },
145 { "virtio-pci", "x-ignore-backend-features", "on" },
147 const size_t hw_compat_2_7_len
= G_N_ELEMENTS(hw_compat_2_7
);
149 GlobalProperty hw_compat_2_6
[] = {
150 { "virtio-mmio", "format_transport_address", "off" },
151 /* Optional because not all virtio-pci devices support legacy mode */
152 { "virtio-pci", "disable-modern", "on", .optional
= true },
153 { "virtio-pci", "disable-legacy", "off", .optional
= true },
155 const size_t hw_compat_2_6_len
= G_N_ELEMENTS(hw_compat_2_6
);
157 GlobalProperty hw_compat_2_5
[] = {
158 { "isa-fdc", "fallback", "144" },
159 { "pvscsi", "x-old-pci-configuration", "on" },
160 { "pvscsi", "x-disable-pcie", "on" },
161 { "vmxnet3", "x-old-msi-offsets", "on" },
162 { "vmxnet3", "x-disable-pcie", "on" },
164 const size_t hw_compat_2_5_len
= G_N_ELEMENTS(hw_compat_2_5
);
166 GlobalProperty hw_compat_2_4
[] = {
167 /* Optional because the 'scsi' property is Linux-only */
168 { "virtio-blk-device", "scsi", "true", .optional
= true },
169 { "e1000", "extra_mac_registers", "off" },
170 { "virtio-pci", "x-disable-pcie", "on" },
171 { "virtio-pci", "migrate-extra", "off" },
172 { "fw_cfg_mem", "dma_enabled", "off" },
173 { "fw_cfg_io", "dma_enabled", "off" }
175 const size_t hw_compat_2_4_len
= G_N_ELEMENTS(hw_compat_2_4
);
177 GlobalProperty hw_compat_2_3
[] = {
178 { "virtio-blk-pci", "any_layout", "off" },
179 { "virtio-balloon-pci", "any_layout", "off" },
180 { "virtio-serial-pci", "any_layout", "off" },
181 { "virtio-9p-pci", "any_layout", "off" },
182 { "virtio-rng-pci", "any_layout", "off" },
183 { TYPE_PCI_DEVICE
, "x-pcie-lnksta-dllla", "off" },
184 { "migration", "send-configuration", "off" },
185 { "migration", "send-section-footer", "off" },
186 { "migration", "store-global-state", "off" },
188 const size_t hw_compat_2_3_len
= G_N_ELEMENTS(hw_compat_2_3
);
190 GlobalProperty hw_compat_2_2
[] = {};
191 const size_t hw_compat_2_2_len
= G_N_ELEMENTS(hw_compat_2_2
);
193 GlobalProperty hw_compat_2_1
[] = {
194 { "intel-hda", "old_msi_addr", "on" },
195 { "VGA", "qemu-extended-regs", "off" },
196 { "secondary-vga", "qemu-extended-regs", "off" },
197 { "virtio-scsi-pci", "any_layout", "off" },
198 { "usb-mouse", "usb_version", "1" },
199 { "usb-kbd", "usb_version", "1" },
200 { "virtio-pci", "virtio-pci-bus-master-bug-migration", "on" },
202 const size_t hw_compat_2_1_len
= G_N_ELEMENTS(hw_compat_2_1
);
204 static char *machine_get_kernel(Object
*obj
, Error
**errp
)
206 MachineState
*ms
= MACHINE(obj
);
208 return g_strdup(ms
->kernel_filename
);
211 static void machine_set_kernel(Object
*obj
, const char *value
, Error
**errp
)
213 MachineState
*ms
= MACHINE(obj
);
215 g_free(ms
->kernel_filename
);
216 ms
->kernel_filename
= g_strdup(value
);
219 static char *machine_get_initrd(Object
*obj
, Error
**errp
)
221 MachineState
*ms
= MACHINE(obj
);
223 return g_strdup(ms
->initrd_filename
);
226 static void machine_set_initrd(Object
*obj
, const char *value
, Error
**errp
)
228 MachineState
*ms
= MACHINE(obj
);
230 g_free(ms
->initrd_filename
);
231 ms
->initrd_filename
= g_strdup(value
);
234 static char *machine_get_append(Object
*obj
, Error
**errp
)
236 MachineState
*ms
= MACHINE(obj
);
238 return g_strdup(ms
->kernel_cmdline
);
241 static void machine_set_append(Object
*obj
, const char *value
, Error
**errp
)
243 MachineState
*ms
= MACHINE(obj
);
245 g_free(ms
->kernel_cmdline
);
246 ms
->kernel_cmdline
= g_strdup(value
);
249 static char *machine_get_dtb(Object
*obj
, Error
**errp
)
251 MachineState
*ms
= MACHINE(obj
);
253 return g_strdup(ms
->dtb
);
256 static void machine_set_dtb(Object
*obj
, const char *value
, Error
**errp
)
258 MachineState
*ms
= MACHINE(obj
);
261 ms
->dtb
= g_strdup(value
);
264 static char *machine_get_dumpdtb(Object
*obj
, Error
**errp
)
266 MachineState
*ms
= MACHINE(obj
);
268 return g_strdup(ms
->dumpdtb
);
271 static void machine_set_dumpdtb(Object
*obj
, const char *value
, Error
**errp
)
273 MachineState
*ms
= MACHINE(obj
);
276 ms
->dumpdtb
= g_strdup(value
);
279 static void machine_get_phandle_start(Object
*obj
, Visitor
*v
,
280 const char *name
, void *opaque
,
283 MachineState
*ms
= MACHINE(obj
);
284 int64_t value
= ms
->phandle_start
;
286 visit_type_int(v
, name
, &value
, errp
);
289 static void machine_set_phandle_start(Object
*obj
, Visitor
*v
,
290 const char *name
, void *opaque
,
293 MachineState
*ms
= MACHINE(obj
);
296 if (!visit_type_int(v
, name
, &value
, errp
)) {
300 ms
->phandle_start
= value
;
303 static char *machine_get_dt_compatible(Object
*obj
, Error
**errp
)
305 MachineState
*ms
= MACHINE(obj
);
307 return g_strdup(ms
->dt_compatible
);
310 static void machine_set_dt_compatible(Object
*obj
, const char *value
, Error
**errp
)
312 MachineState
*ms
= MACHINE(obj
);
314 g_free(ms
->dt_compatible
);
315 ms
->dt_compatible
= g_strdup(value
);
318 static bool machine_get_dump_guest_core(Object
*obj
, Error
**errp
)
320 MachineState
*ms
= MACHINE(obj
);
322 return ms
->dump_guest_core
;
325 static void machine_set_dump_guest_core(Object
*obj
, bool value
, Error
**errp
)
327 MachineState
*ms
= MACHINE(obj
);
329 ms
->dump_guest_core
= value
;
332 static bool machine_get_mem_merge(Object
*obj
, Error
**errp
)
334 MachineState
*ms
= MACHINE(obj
);
336 return ms
->mem_merge
;
339 static void machine_set_mem_merge(Object
*obj
, bool value
, Error
**errp
)
341 MachineState
*ms
= MACHINE(obj
);
343 ms
->mem_merge
= value
;
346 static bool machine_get_usb(Object
*obj
, Error
**errp
)
348 MachineState
*ms
= MACHINE(obj
);
353 static void machine_set_usb(Object
*obj
, bool value
, Error
**errp
)
355 MachineState
*ms
= MACHINE(obj
);
358 ms
->usb_disabled
= !value
;
361 static bool machine_get_graphics(Object
*obj
, Error
**errp
)
363 MachineState
*ms
= MACHINE(obj
);
365 return ms
->enable_graphics
;
368 static void machine_set_graphics(Object
*obj
, bool value
, Error
**errp
)
370 MachineState
*ms
= MACHINE(obj
);
372 ms
->enable_graphics
= value
;
375 static char *machine_get_firmware(Object
*obj
, Error
**errp
)
377 MachineState
*ms
= MACHINE(obj
);
379 return g_strdup(ms
->firmware
);
382 static void machine_set_firmware(Object
*obj
, const char *value
, Error
**errp
)
384 MachineState
*ms
= MACHINE(obj
);
386 g_free(ms
->firmware
);
387 ms
->firmware
= g_strdup(value
);
390 static void machine_set_suppress_vmdesc(Object
*obj
, bool value
, Error
**errp
)
392 MachineState
*ms
= MACHINE(obj
);
394 ms
->suppress_vmdesc
= value
;
397 static bool machine_get_suppress_vmdesc(Object
*obj
, Error
**errp
)
399 MachineState
*ms
= MACHINE(obj
);
401 return ms
->suppress_vmdesc
;
404 static void machine_set_enforce_config_section(Object
*obj
, bool value
,
407 MachineState
*ms
= MACHINE(obj
);
409 warn_report("enforce-config-section is deprecated, please use "
410 "-global migration.send-configuration=on|off instead");
412 ms
->enforce_config_section
= value
;
415 static bool machine_get_enforce_config_section(Object
*obj
, Error
**errp
)
417 MachineState
*ms
= MACHINE(obj
);
419 return ms
->enforce_config_section
;
422 static char *machine_get_memory_encryption(Object
*obj
, Error
**errp
)
424 MachineState
*ms
= MACHINE(obj
);
426 return g_strdup(ms
->memory_encryption
);
429 static void machine_set_memory_encryption(Object
*obj
, const char *value
,
432 MachineState
*ms
= MACHINE(obj
);
434 g_free(ms
->memory_encryption
);
435 ms
->memory_encryption
= g_strdup(value
);
438 * With memory encryption, the host can't see the real contents of RAM,
439 * so there's no point in it trying to merge areas.
442 machine_set_mem_merge(obj
, false, errp
);
446 static bool machine_get_nvdimm(Object
*obj
, Error
**errp
)
448 MachineState
*ms
= MACHINE(obj
);
450 return ms
->nvdimms_state
->is_enabled
;
453 static void machine_set_nvdimm(Object
*obj
, bool value
, Error
**errp
)
455 MachineState
*ms
= MACHINE(obj
);
457 ms
->nvdimms_state
->is_enabled
= value
;
460 static bool machine_get_hmat(Object
*obj
, Error
**errp
)
462 MachineState
*ms
= MACHINE(obj
);
464 return ms
->numa_state
->hmat_enabled
;
467 static void machine_set_hmat(Object
*obj
, bool value
, Error
**errp
)
469 MachineState
*ms
= MACHINE(obj
);
471 ms
->numa_state
->hmat_enabled
= value
;
474 static char *machine_get_nvdimm_persistence(Object
*obj
, Error
**errp
)
476 MachineState
*ms
= MACHINE(obj
);
478 return g_strdup(ms
->nvdimms_state
->persistence_string
);
481 static void machine_set_nvdimm_persistence(Object
*obj
, const char *value
,
484 MachineState
*ms
= MACHINE(obj
);
485 NVDIMMState
*nvdimms_state
= ms
->nvdimms_state
;
487 if (strcmp(value
, "cpu") == 0) {
488 nvdimms_state
->persistence
= 3;
489 } else if (strcmp(value
, "mem-ctrl") == 0) {
490 nvdimms_state
->persistence
= 2;
492 error_setg(errp
, "-machine nvdimm-persistence=%s: unsupported option",
497 g_free(nvdimms_state
->persistence_string
);
498 nvdimms_state
->persistence_string
= g_strdup(value
);
501 void machine_class_allow_dynamic_sysbus_dev(MachineClass
*mc
, const char *type
)
503 strList
*item
= g_new0(strList
, 1);
505 item
->value
= g_strdup(type
);
506 item
->next
= mc
->allowed_dynamic_sysbus_devices
;
507 mc
->allowed_dynamic_sysbus_devices
= item
;
510 static void validate_sysbus_device(SysBusDevice
*sbdev
, void *opaque
)
512 MachineState
*machine
= opaque
;
513 MachineClass
*mc
= MACHINE_GET_CLASS(machine
);
514 bool allowed
= false;
517 for (wl
= mc
->allowed_dynamic_sysbus_devices
;
520 allowed
|= !!object_dynamic_cast(OBJECT(sbdev
), wl
->value
);
524 error_report("Option '-device %s' cannot be handled by this machine",
525 object_class_get_name(object_get_class(OBJECT(sbdev
))));
530 static char *machine_get_memdev(Object
*obj
, Error
**errp
)
532 MachineState
*ms
= MACHINE(obj
);
534 return g_strdup(ms
->ram_memdev_id
);
537 static void machine_set_memdev(Object
*obj
, const char *value
, Error
**errp
)
539 MachineState
*ms
= MACHINE(obj
);
541 g_free(ms
->ram_memdev_id
);
542 ms
->ram_memdev_id
= g_strdup(value
);
546 static void machine_init_notify(Notifier
*notifier
, void *data
)
548 MachineState
*machine
= MACHINE(qdev_get_machine());
551 * Loop through all dynamically created sysbus devices and check if they are
552 * all allowed. If a device is not allowed, error out.
554 foreach_dynamic_sysbus_device(validate_sysbus_device
, machine
);
557 HotpluggableCPUList
*machine_query_hotpluggable_cpus(MachineState
*machine
)
560 HotpluggableCPUList
*head
= NULL
;
561 MachineClass
*mc
= MACHINE_GET_CLASS(machine
);
563 /* force board to initialize possible_cpus if it hasn't been done yet */
564 mc
->possible_cpu_arch_ids(machine
);
566 for (i
= 0; i
< machine
->possible_cpus
->len
; i
++) {
568 HotpluggableCPUList
*list_item
= g_new0(typeof(*list_item
), 1);
569 HotpluggableCPU
*cpu_item
= g_new0(typeof(*cpu_item
), 1);
571 cpu_item
->type
= g_strdup(machine
->possible_cpus
->cpus
[i
].type
);
572 cpu_item
->vcpus_count
= machine
->possible_cpus
->cpus
[i
].vcpus_count
;
573 cpu_item
->props
= g_memdup(&machine
->possible_cpus
->cpus
[i
].props
,
574 sizeof(*cpu_item
->props
));
576 cpu
= machine
->possible_cpus
->cpus
[i
].cpu
;
578 cpu_item
->has_qom_path
= true;
579 cpu_item
->qom_path
= object_get_canonical_path(cpu
);
581 list_item
->value
= cpu_item
;
582 list_item
->next
= head
;
589 * machine_set_cpu_numa_node:
590 * @machine: machine object to modify
591 * @props: specifies which cpu objects to assign to
592 * numa node specified by @props.node_id
593 * @errp: if an error occurs, a pointer to an area to store the error
595 * Associate NUMA node specified by @props.node_id with cpu slots that
596 * match socket/core/thread-ids specified by @props. It's recommended to use
597 * query-hotpluggable-cpus.props values to specify affected cpu slots,
598 * which would lead to exact 1:1 mapping of cpu slots to NUMA node.
600 * However for CLI convenience it's possible to pass in subset of properties,
601 * which would affect all cpu slots that match it.
603 * -smp 4,cores=2,sockets=2 -numa node,nodeid=0 -numa node,nodeid=1 \
604 * -numa cpu,node-id=0,socket_id=0 \
605 * -numa cpu,node-id=1,socket_id=1
606 * will assign all child cores of socket 0 to node 0 and
607 * of socket 1 to node 1.
609 * On attempt of reassigning (already assigned) cpu slot to another NUMA node,
611 * Empty subset is disallowed and function will return with error in this case.
613 void machine_set_cpu_numa_node(MachineState
*machine
,
614 const CpuInstanceProperties
*props
, Error
**errp
)
616 MachineClass
*mc
= MACHINE_GET_CLASS(machine
);
617 NodeInfo
*numa_info
= machine
->numa_state
->nodes
;
621 if (!mc
->possible_cpu_arch_ids
) {
622 error_setg(errp
, "mapping of CPUs to NUMA node is not supported");
626 /* disabling node mapping is not supported, forbid it */
627 assert(props
->has_node_id
);
629 /* force board to initialize possible_cpus if it hasn't been done yet */
630 mc
->possible_cpu_arch_ids(machine
);
632 for (i
= 0; i
< machine
->possible_cpus
->len
; i
++) {
633 CPUArchId
*slot
= &machine
->possible_cpus
->cpus
[i
];
635 /* reject unsupported by board properties */
636 if (props
->has_thread_id
&& !slot
->props
.has_thread_id
) {
637 error_setg(errp
, "thread-id is not supported");
641 if (props
->has_core_id
&& !slot
->props
.has_core_id
) {
642 error_setg(errp
, "core-id is not supported");
646 if (props
->has_socket_id
&& !slot
->props
.has_socket_id
) {
647 error_setg(errp
, "socket-id is not supported");
651 if (props
->has_die_id
&& !slot
->props
.has_die_id
) {
652 error_setg(errp
, "die-id is not supported");
656 /* skip slots with explicit mismatch */
657 if (props
->has_thread_id
&& props
->thread_id
!= slot
->props
.thread_id
) {
661 if (props
->has_core_id
&& props
->core_id
!= slot
->props
.core_id
) {
665 if (props
->has_die_id
&& props
->die_id
!= slot
->props
.die_id
) {
669 if (props
->has_socket_id
&& props
->socket_id
!= slot
->props
.socket_id
) {
673 /* reject assignment if slot is already assigned, for compatibility
674 * of legacy cpu_index mapping with SPAPR core based mapping do not
675 * error out if cpu thread and matched core have the same node-id */
676 if (slot
->props
.has_node_id
&&
677 slot
->props
.node_id
!= props
->node_id
) {
678 error_setg(errp
, "CPU is already assigned to node-id: %" PRId64
,
679 slot
->props
.node_id
);
683 /* assign slot to node as it's matched '-numa cpu' key */
685 slot
->props
.node_id
= props
->node_id
;
686 slot
->props
.has_node_id
= props
->has_node_id
;
688 if (machine
->numa_state
->hmat_enabled
) {
689 if ((numa_info
[props
->node_id
].initiator
< MAX_NODES
) &&
690 (props
->node_id
!= numa_info
[props
->node_id
].initiator
)) {
691 error_setg(errp
, "The initiator of CPU NUMA node %" PRId64
692 " should be itself", props
->node_id
);
695 numa_info
[props
->node_id
].has_cpu
= true;
696 numa_info
[props
->node_id
].initiator
= props
->node_id
;
701 error_setg(errp
, "no match found");
705 static void smp_parse(MachineState
*ms
, QemuOpts
*opts
)
708 unsigned cpus
= qemu_opt_get_number(opts
, "cpus", 0);
709 unsigned sockets
= qemu_opt_get_number(opts
, "sockets", 0);
710 unsigned cores
= qemu_opt_get_number(opts
, "cores", 0);
711 unsigned threads
= qemu_opt_get_number(opts
, "threads", 0);
713 /* compute missing values, prefer sockets over cores over threads */
714 if (cpus
== 0 || sockets
== 0) {
715 cores
= cores
> 0 ? cores
: 1;
716 threads
= threads
> 0 ? threads
: 1;
718 sockets
= sockets
> 0 ? sockets
: 1;
719 cpus
= cores
* threads
* sockets
;
722 qemu_opt_get_number(opts
, "maxcpus", cpus
);
723 sockets
= ms
->smp
.max_cpus
/ (cores
* threads
);
725 } else if (cores
== 0) {
726 threads
= threads
> 0 ? threads
: 1;
727 cores
= cpus
/ (sockets
* threads
);
728 cores
= cores
> 0 ? cores
: 1;
729 } else if (threads
== 0) {
730 threads
= cpus
/ (cores
* sockets
);
731 threads
= threads
> 0 ? threads
: 1;
732 } else if (sockets
* cores
* threads
< cpus
) {
733 error_report("cpu topology: "
734 "sockets (%u) * cores (%u) * threads (%u) < "
736 sockets
, cores
, threads
, cpus
);
741 qemu_opt_get_number(opts
, "maxcpus", cpus
);
743 if (ms
->smp
.max_cpus
< cpus
) {
744 error_report("maxcpus must be equal to or greater than smp");
748 if (sockets
* cores
* threads
> ms
->smp
.max_cpus
) {
749 error_report("cpu topology: "
750 "sockets (%u) * cores (%u) * threads (%u) > "
752 sockets
, cores
, threads
,
757 if (sockets
* cores
* threads
!= ms
->smp
.max_cpus
) {
758 warn_report("Invalid CPU topology deprecated: "
759 "sockets (%u) * cores (%u) * threads (%u) "
761 sockets
, cores
, threads
,
766 ms
->smp
.cores
= cores
;
767 ms
->smp
.threads
= threads
;
768 ms
->smp
.sockets
= sockets
;
771 if (ms
->smp
.cpus
> 1) {
772 Error
*blocker
= NULL
;
773 error_setg(&blocker
, QERR_REPLAY_NOT_SUPPORTED
, "smp");
774 replay_add_blocker(blocker
);
778 static void machine_class_init(ObjectClass
*oc
, void *data
)
780 MachineClass
*mc
= MACHINE_CLASS(oc
);
782 /* Default 128 MB as guest ram size */
783 mc
->default_ram_size
= 128 * MiB
;
784 mc
->rom_file_has_mr
= true;
785 mc
->smp_parse
= smp_parse
;
787 /* numa node memory size aligned on 8MB by default.
788 * On Linux, each node's border has to be 8MB aligned
790 mc
->numa_mem_align_shift
= 23;
791 mc
->numa_auto_assign_ram
= numa_default_auto_assign_ram
;
793 object_class_property_add_str(oc
, "kernel",
794 machine_get_kernel
, machine_set_kernel
);
795 object_class_property_set_description(oc
, "kernel",
796 "Linux kernel image file");
798 object_class_property_add_str(oc
, "initrd",
799 machine_get_initrd
, machine_set_initrd
);
800 object_class_property_set_description(oc
, "initrd",
801 "Linux initial ramdisk file");
803 object_class_property_add_str(oc
, "append",
804 machine_get_append
, machine_set_append
);
805 object_class_property_set_description(oc
, "append",
806 "Linux kernel command line");
808 object_class_property_add_str(oc
, "dtb",
809 machine_get_dtb
, machine_set_dtb
);
810 object_class_property_set_description(oc
, "dtb",
811 "Linux kernel device tree file");
813 object_class_property_add_str(oc
, "dumpdtb",
814 machine_get_dumpdtb
, machine_set_dumpdtb
);
815 object_class_property_set_description(oc
, "dumpdtb",
816 "Dump current dtb to a file and quit");
818 object_class_property_add(oc
, "phandle-start", "int",
819 machine_get_phandle_start
, machine_set_phandle_start
,
821 object_class_property_set_description(oc
, "phandle-start",
822 "The first phandle ID we may generate dynamically");
824 object_class_property_add_str(oc
, "dt-compatible",
825 machine_get_dt_compatible
, machine_set_dt_compatible
);
826 object_class_property_set_description(oc
, "dt-compatible",
827 "Overrides the \"compatible\" property of the dt root node");
829 object_class_property_add_bool(oc
, "dump-guest-core",
830 machine_get_dump_guest_core
, machine_set_dump_guest_core
);
831 object_class_property_set_description(oc
, "dump-guest-core",
832 "Include guest memory in a core dump");
834 object_class_property_add_bool(oc
, "mem-merge",
835 machine_get_mem_merge
, machine_set_mem_merge
);
836 object_class_property_set_description(oc
, "mem-merge",
837 "Enable/disable memory merge support");
839 object_class_property_add_bool(oc
, "usb",
840 machine_get_usb
, machine_set_usb
);
841 object_class_property_set_description(oc
, "usb",
842 "Set on/off to enable/disable usb");
844 object_class_property_add_bool(oc
, "graphics",
845 machine_get_graphics
, machine_set_graphics
);
846 object_class_property_set_description(oc
, "graphics",
847 "Set on/off to enable/disable graphics emulation");
849 object_class_property_add_str(oc
, "firmware",
850 machine_get_firmware
, machine_set_firmware
);
851 object_class_property_set_description(oc
, "firmware",
854 object_class_property_add_bool(oc
, "suppress-vmdesc",
855 machine_get_suppress_vmdesc
, machine_set_suppress_vmdesc
);
856 object_class_property_set_description(oc
, "suppress-vmdesc",
857 "Set on to disable self-describing migration");
859 object_class_property_add_bool(oc
, "enforce-config-section",
860 machine_get_enforce_config_section
, machine_set_enforce_config_section
);
861 object_class_property_set_description(oc
, "enforce-config-section",
862 "Set on to enforce configuration section migration");
864 object_class_property_add_str(oc
, "memory-encryption",
865 machine_get_memory_encryption
, machine_set_memory_encryption
);
866 object_class_property_set_description(oc
, "memory-encryption",
867 "Set memory encryption object to use");
870 static void machine_class_base_init(ObjectClass
*oc
, void *data
)
872 if (!object_class_is_abstract(oc
)) {
873 MachineClass
*mc
= MACHINE_CLASS(oc
);
874 const char *cname
= object_class_get_name(oc
);
875 assert(g_str_has_suffix(cname
, TYPE_MACHINE_SUFFIX
));
876 mc
->name
= g_strndup(cname
,
877 strlen(cname
) - strlen(TYPE_MACHINE_SUFFIX
));
878 mc
->compat_props
= g_ptr_array_new();
882 static void machine_initfn(Object
*obj
)
884 MachineState
*ms
= MACHINE(obj
);
885 MachineClass
*mc
= MACHINE_GET_CLASS(obj
);
887 ms
->dump_guest_core
= true;
888 ms
->mem_merge
= true;
889 ms
->enable_graphics
= true;
891 if (mc
->nvdimm_supported
) {
892 Object
*obj
= OBJECT(ms
);
894 ms
->nvdimms_state
= g_new0(NVDIMMState
, 1);
895 object_property_add_bool(obj
, "nvdimm",
896 machine_get_nvdimm
, machine_set_nvdimm
);
897 object_property_set_description(obj
, "nvdimm",
898 "Set on/off to enable/disable "
899 "NVDIMM instantiation");
901 object_property_add_str(obj
, "nvdimm-persistence",
902 machine_get_nvdimm_persistence
,
903 machine_set_nvdimm_persistence
);
904 object_property_set_description(obj
, "nvdimm-persistence",
905 "Set NVDIMM persistence"
906 "Valid values are cpu, mem-ctrl");
909 if (mc
->cpu_index_to_instance_props
&& mc
->get_default_cpu_node_id
) {
910 ms
->numa_state
= g_new0(NumaState
, 1);
911 object_property_add_bool(obj
, "hmat",
912 machine_get_hmat
, machine_set_hmat
);
913 object_property_set_description(obj
, "hmat",
914 "Set on/off to enable/disable "
915 "ACPI Heterogeneous Memory Attribute "
919 object_property_add_str(obj
, "memory-backend",
920 machine_get_memdev
, machine_set_memdev
);
921 object_property_set_description(obj
, "memory-backend",
923 "Valid value is ID of hostmem based backend");
925 /* Register notifier when init is done for sysbus sanity checks */
926 ms
->sysbus_notifier
.notify
= machine_init_notify
;
927 qemu_add_machine_init_done_notifier(&ms
->sysbus_notifier
);
930 static void machine_finalize(Object
*obj
)
932 MachineState
*ms
= MACHINE(obj
);
934 g_free(ms
->kernel_filename
);
935 g_free(ms
->initrd_filename
);
936 g_free(ms
->kernel_cmdline
);
939 g_free(ms
->dt_compatible
);
940 g_free(ms
->firmware
);
941 g_free(ms
->device_memory
);
942 g_free(ms
->nvdimms_state
);
943 g_free(ms
->numa_state
);
946 bool machine_usb(MachineState
*machine
)
951 int machine_phandle_start(MachineState
*machine
)
953 return machine
->phandle_start
;
956 bool machine_dump_guest_core(MachineState
*machine
)
958 return machine
->dump_guest_core
;
961 bool machine_mem_merge(MachineState
*machine
)
963 return machine
->mem_merge
;
966 static char *cpu_slot_to_string(const CPUArchId
*cpu
)
968 GString
*s
= g_string_new(NULL
);
969 if (cpu
->props
.has_socket_id
) {
970 g_string_append_printf(s
, "socket-id: %"PRId64
, cpu
->props
.socket_id
);
972 if (cpu
->props
.has_die_id
) {
973 g_string_append_printf(s
, "die-id: %"PRId64
, cpu
->props
.die_id
);
975 if (cpu
->props
.has_core_id
) {
977 g_string_append_printf(s
, ", ");
979 g_string_append_printf(s
, "core-id: %"PRId64
, cpu
->props
.core_id
);
981 if (cpu
->props
.has_thread_id
) {
983 g_string_append_printf(s
, ", ");
985 g_string_append_printf(s
, "thread-id: %"PRId64
, cpu
->props
.thread_id
);
987 return g_string_free(s
, false);
990 static void numa_validate_initiator(NumaState
*numa_state
)
993 NodeInfo
*numa_info
= numa_state
->nodes
;
995 for (i
= 0; i
< numa_state
->num_nodes
; i
++) {
996 if (numa_info
[i
].initiator
== MAX_NODES
) {
997 error_report("The initiator of NUMA node %d is missing, use "
998 "'-numa node,initiator' option to declare it", i
);
1002 if (!numa_info
[numa_info
[i
].initiator
].present
) {
1003 error_report("NUMA node %" PRIu16
" is missing, use "
1004 "'-numa node' option to declare it first",
1005 numa_info
[i
].initiator
);
1009 if (!numa_info
[numa_info
[i
].initiator
].has_cpu
) {
1010 error_report("The initiator of NUMA node %d is invalid", i
);
1016 static void machine_numa_finish_cpu_init(MachineState
*machine
)
1019 bool default_mapping
;
1020 GString
*s
= g_string_new(NULL
);
1021 MachineClass
*mc
= MACHINE_GET_CLASS(machine
);
1022 const CPUArchIdList
*possible_cpus
= mc
->possible_cpu_arch_ids(machine
);
1024 assert(machine
->numa_state
->num_nodes
);
1025 for (i
= 0; i
< possible_cpus
->len
; i
++) {
1026 if (possible_cpus
->cpus
[i
].props
.has_node_id
) {
1030 default_mapping
= (i
== possible_cpus
->len
);
1032 for (i
= 0; i
< possible_cpus
->len
; i
++) {
1033 const CPUArchId
*cpu_slot
= &possible_cpus
->cpus
[i
];
1035 if (!cpu_slot
->props
.has_node_id
) {
1036 /* fetch default mapping from board and enable it */
1037 CpuInstanceProperties props
= cpu_slot
->props
;
1039 props
.node_id
= mc
->get_default_cpu_node_id(machine
, i
);
1040 if (!default_mapping
) {
1041 /* record slots with not set mapping,
1042 * TODO: make it hard error in future */
1043 char *cpu_str
= cpu_slot_to_string(cpu_slot
);
1044 g_string_append_printf(s
, "%sCPU %d [%s]",
1045 s
->len
? ", " : "", i
, cpu_str
);
1048 /* non mapped cpus used to fallback to node 0 */
1052 props
.has_node_id
= true;
1053 machine_set_cpu_numa_node(machine
, &props
, &error_fatal
);
1057 if (machine
->numa_state
->hmat_enabled
) {
1058 numa_validate_initiator(machine
->numa_state
);
1061 if (s
->len
&& !qtest_enabled()) {
1062 warn_report("CPU(s) not present in any NUMA nodes: %s",
1064 warn_report("All CPU(s) up to maxcpus should be described "
1065 "in NUMA config, ability to start up with partial NUMA "
1066 "mappings is obsoleted and will be removed in future");
1068 g_string_free(s
, true);
1071 MemoryRegion
*machine_consume_memdev(MachineState
*machine
,
1072 HostMemoryBackend
*backend
)
1074 MemoryRegion
*ret
= host_memory_backend_get_memory(backend
);
1076 if (memory_region_is_mapped(ret
)) {
1077 error_report("memory backend %s can't be used multiple times.",
1078 object_get_canonical_path_component(OBJECT(backend
)));
1081 host_memory_backend_set_mapped(backend
, true);
1082 vmstate_register_ram_global(ret
);
1086 void machine_run_board_init(MachineState
*machine
)
1088 MachineClass
*machine_class
= MACHINE_GET_CLASS(machine
);
1090 if (machine
->ram_memdev_id
) {
1092 o
= object_resolve_path_type(machine
->ram_memdev_id
,
1093 TYPE_MEMORY_BACKEND
, NULL
);
1094 machine
->ram
= machine_consume_memdev(machine
, MEMORY_BACKEND(o
));
1097 if (machine
->numa_state
) {
1098 numa_complete_configuration(machine
);
1099 if (machine
->numa_state
->num_nodes
) {
1100 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
)