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 "hw/loader.h"
20 #include "qapi/error.h"
21 #include "qapi/qapi-visit-common.h"
22 #include "qapi/qapi-visit-machine.h"
23 #include "qapi/visitor.h"
24 #include "hw/sysbus.h"
25 #include "sysemu/cpus.h"
26 #include "sysemu/sysemu.h"
27 #include "sysemu/reset.h"
28 #include "sysemu/runstate.h"
29 #include "sysemu/numa.h"
30 #include "qemu/error-report.h"
31 #include "sysemu/qtest.h"
32 #include "hw/pci/pci.h"
33 #include "hw/mem/nvdimm.h"
34 #include "migration/global_state.h"
35 #include "migration/vmstate.h"
36 #include "exec/confidential-guest-support.h"
37 #include "hw/virtio/virtio.h"
38 #include "hw/virtio/virtio-pci.h"
40 GlobalProperty hw_compat_6_1
[] = {
41 { "vhost-user-vsock-device", "seqpacket", "off" },
42 { "nvme-ns", "shared", "off" },
44 const size_t hw_compat_6_1_len
= G_N_ELEMENTS(hw_compat_6_1
);
46 GlobalProperty hw_compat_6_0
[] = {
47 { "gpex-pcihost", "allow-unmapped-accesses", "false" },
48 { "i8042", "extended-state", "false"},
49 { "nvme-ns", "eui64-default", "off"},
50 { "e1000", "init-vet", "off" },
51 { "e1000e", "init-vet", "off" },
52 { "vhost-vsock-device", "seqpacket", "off" },
54 const size_t hw_compat_6_0_len
= G_N_ELEMENTS(hw_compat_6_0
);
56 GlobalProperty hw_compat_5_2
[] = {
57 { "ICH9-LPC", "smm-compat", "on"},
58 { "PIIX4_PM", "smm-compat", "on"},
59 { "virtio-blk-device", "report-discard-granularity", "off" },
60 { "virtio-net-pci-base", "vectors", "3"},
62 const size_t hw_compat_5_2_len
= G_N_ELEMENTS(hw_compat_5_2
);
64 GlobalProperty hw_compat_5_1
[] = {
65 { "vhost-scsi", "num_queues", "1"},
66 { "vhost-user-blk", "num-queues", "1"},
67 { "vhost-user-scsi", "num_queues", "1"},
68 { "virtio-blk-device", "num-queues", "1"},
69 { "virtio-scsi-device", "num_queues", "1"},
70 { "nvme", "use-intel-id", "on"},
71 { "pvpanic", "events", "1"}, /* PVPANIC_PANICKED */
72 { "pl011", "migrate-clk", "off" },
73 { "virtio-pci", "x-ats-page-aligned", "off"},
75 const size_t hw_compat_5_1_len
= G_N_ELEMENTS(hw_compat_5_1
);
77 GlobalProperty hw_compat_5_0
[] = {
78 { "pci-host-bridge", "x-config-reg-migration-enabled", "off" },
79 { "virtio-balloon-device", "page-poison", "false" },
80 { "vmport", "x-read-set-eax", "off" },
81 { "vmport", "x-signal-unsupported-cmd", "off" },
82 { "vmport", "x-report-vmx-type", "off" },
83 { "vmport", "x-cmds-v2", "off" },
84 { "virtio-device", "x-disable-legacy-check", "true" },
86 const size_t hw_compat_5_0_len
= G_N_ELEMENTS(hw_compat_5_0
);
88 GlobalProperty hw_compat_4_2
[] = {
89 { "virtio-blk-device", "queue-size", "128"},
90 { "virtio-scsi-device", "virtqueue_size", "128"},
91 { "virtio-blk-device", "x-enable-wce-if-config-wce", "off" },
92 { "virtio-blk-device", "seg-max-adjust", "off"},
93 { "virtio-scsi-device", "seg_max_adjust", "off"},
94 { "vhost-blk-device", "seg_max_adjust", "off"},
95 { "usb-host", "suppress-remote-wake", "off" },
96 { "usb-redir", "suppress-remote-wake", "off" },
97 { "qxl", "revision", "4" },
98 { "qxl-vga", "revision", "4" },
99 { "fw_cfg", "acpi-mr-restore", "false" },
100 { "virtio-device", "use-disabled-flag", "false" },
102 const size_t hw_compat_4_2_len
= G_N_ELEMENTS(hw_compat_4_2
);
104 GlobalProperty hw_compat_4_1
[] = {
105 { "virtio-pci", "x-pcie-flr-init", "off" },
107 const size_t hw_compat_4_1_len
= G_N_ELEMENTS(hw_compat_4_1
);
109 GlobalProperty hw_compat_4_0
[] = {
110 { "VGA", "edid", "false" },
111 { "secondary-vga", "edid", "false" },
112 { "bochs-display", "edid", "false" },
113 { "virtio-vga", "edid", "false" },
114 { "virtio-gpu-device", "edid", "false" },
115 { "virtio-device", "use-started", "false" },
116 { "virtio-balloon-device", "qemu-4-0-config-size", "true" },
117 { "pl031", "migrate-tick-offset", "false" },
119 const size_t hw_compat_4_0_len
= G_N_ELEMENTS(hw_compat_4_0
);
121 GlobalProperty hw_compat_3_1
[] = {
122 { "pcie-root-port", "x-speed", "2_5" },
123 { "pcie-root-port", "x-width", "1" },
124 { "memory-backend-file", "x-use-canonical-path-for-ramblock-id", "true" },
125 { "memory-backend-memfd", "x-use-canonical-path-for-ramblock-id", "true" },
126 { "tpm-crb", "ppi", "false" },
127 { "tpm-tis", "ppi", "false" },
128 { "usb-kbd", "serial", "42" },
129 { "usb-mouse", "serial", "42" },
130 { "usb-tablet", "serial", "42" },
131 { "virtio-blk-device", "discard", "false" },
132 { "virtio-blk-device", "write-zeroes", "false" },
133 { "virtio-balloon-device", "qemu-4-0-config-size", "false" },
134 { "pcie-root-port-base", "disable-acs", "true" }, /* Added in 4.1 */
136 const size_t hw_compat_3_1_len
= G_N_ELEMENTS(hw_compat_3_1
);
138 GlobalProperty hw_compat_3_0
[] = {};
139 const size_t hw_compat_3_0_len
= G_N_ELEMENTS(hw_compat_3_0
);
141 GlobalProperty hw_compat_2_12
[] = {
142 { "migration", "decompress-error-check", "off" },
143 { "hda-audio", "use-timer", "false" },
144 { "cirrus-vga", "global-vmstate", "true" },
145 { "VGA", "global-vmstate", "true" },
146 { "vmware-svga", "global-vmstate", "true" },
147 { "qxl-vga", "global-vmstate", "true" },
149 const size_t hw_compat_2_12_len
= G_N_ELEMENTS(hw_compat_2_12
);
151 GlobalProperty hw_compat_2_11
[] = {
152 { "hpet", "hpet-offset-saved", "false" },
153 { "virtio-blk-pci", "vectors", "2" },
154 { "vhost-user-blk-pci", "vectors", "2" },
155 { "e1000", "migrate_tso_props", "off" },
157 const size_t hw_compat_2_11_len
= G_N_ELEMENTS(hw_compat_2_11
);
159 GlobalProperty hw_compat_2_10
[] = {
160 { "virtio-mouse-device", "wheel-axis", "false" },
161 { "virtio-tablet-device", "wheel-axis", "false" },
163 const size_t hw_compat_2_10_len
= G_N_ELEMENTS(hw_compat_2_10
);
165 GlobalProperty hw_compat_2_9
[] = {
166 { "pci-bridge", "shpc", "off" },
167 { "intel-iommu", "pt", "off" },
168 { "virtio-net-device", "x-mtu-bypass-backend", "off" },
169 { "pcie-root-port", "x-migrate-msix", "false" },
171 const size_t hw_compat_2_9_len
= G_N_ELEMENTS(hw_compat_2_9
);
173 GlobalProperty hw_compat_2_8
[] = {
174 { "fw_cfg_mem", "x-file-slots", "0x10" },
175 { "fw_cfg_io", "x-file-slots", "0x10" },
176 { "pflash_cfi01", "old-multiple-chip-handling", "on" },
177 { "pci-bridge", "shpc", "on" },
178 { TYPE_PCI_DEVICE
, "x-pcie-extcap-init", "off" },
179 { "virtio-pci", "x-pcie-deverr-init", "off" },
180 { "virtio-pci", "x-pcie-lnkctl-init", "off" },
181 { "virtio-pci", "x-pcie-pm-init", "off" },
182 { "cirrus-vga", "vgamem_mb", "8" },
183 { "isa-cirrus-vga", "vgamem_mb", "8" },
185 const size_t hw_compat_2_8_len
= G_N_ELEMENTS(hw_compat_2_8
);
187 GlobalProperty hw_compat_2_7
[] = {
188 { "virtio-pci", "page-per-vq", "on" },
189 { "virtio-serial-device", "emergency-write", "off" },
190 { "ioapic", "version", "0x11" },
191 { "intel-iommu", "x-buggy-eim", "true" },
192 { "virtio-pci", "x-ignore-backend-features", "on" },
194 const size_t hw_compat_2_7_len
= G_N_ELEMENTS(hw_compat_2_7
);
196 GlobalProperty hw_compat_2_6
[] = {
197 { "virtio-mmio", "format_transport_address", "off" },
198 /* Optional because not all virtio-pci devices support legacy mode */
199 { "virtio-pci", "disable-modern", "on", .optional
= true },
200 { "virtio-pci", "disable-legacy", "off", .optional
= true },
202 const size_t hw_compat_2_6_len
= G_N_ELEMENTS(hw_compat_2_6
);
204 GlobalProperty hw_compat_2_5
[] = {
205 { "isa-fdc", "fallback", "144" },
206 { "pvscsi", "x-old-pci-configuration", "on" },
207 { "pvscsi", "x-disable-pcie", "on" },
208 { "vmxnet3", "x-old-msi-offsets", "on" },
209 { "vmxnet3", "x-disable-pcie", "on" },
211 const size_t hw_compat_2_5_len
= G_N_ELEMENTS(hw_compat_2_5
);
213 GlobalProperty hw_compat_2_4
[] = {
214 /* Optional because the 'scsi' property is Linux-only */
215 { "virtio-blk-device", "scsi", "true", .optional
= true },
216 { "e1000", "extra_mac_registers", "off" },
217 { "virtio-pci", "x-disable-pcie", "on" },
218 { "virtio-pci", "migrate-extra", "off" },
219 { "fw_cfg_mem", "dma_enabled", "off" },
220 { "fw_cfg_io", "dma_enabled", "off" }
222 const size_t hw_compat_2_4_len
= G_N_ELEMENTS(hw_compat_2_4
);
224 GlobalProperty hw_compat_2_3
[] = {
225 { "virtio-blk-pci", "any_layout", "off" },
226 { "virtio-balloon-pci", "any_layout", "off" },
227 { "virtio-serial-pci", "any_layout", "off" },
228 { "virtio-9p-pci", "any_layout", "off" },
229 { "virtio-rng-pci", "any_layout", "off" },
230 { TYPE_PCI_DEVICE
, "x-pcie-lnksta-dllla", "off" },
231 { "migration", "send-configuration", "off" },
232 { "migration", "send-section-footer", "off" },
233 { "migration", "store-global-state", "off" },
235 const size_t hw_compat_2_3_len
= G_N_ELEMENTS(hw_compat_2_3
);
237 GlobalProperty hw_compat_2_2
[] = {};
238 const size_t hw_compat_2_2_len
= G_N_ELEMENTS(hw_compat_2_2
);
240 GlobalProperty hw_compat_2_1
[] = {
241 { "intel-hda", "old_msi_addr", "on" },
242 { "VGA", "qemu-extended-regs", "off" },
243 { "secondary-vga", "qemu-extended-regs", "off" },
244 { "virtio-scsi-pci", "any_layout", "off" },
245 { "usb-mouse", "usb_version", "1" },
246 { "usb-kbd", "usb_version", "1" },
247 { "virtio-pci", "virtio-pci-bus-master-bug-migration", "on" },
249 const size_t hw_compat_2_1_len
= G_N_ELEMENTS(hw_compat_2_1
);
251 MachineState
*current_machine
;
253 static char *machine_get_kernel(Object
*obj
, Error
**errp
)
255 MachineState
*ms
= MACHINE(obj
);
257 return g_strdup(ms
->kernel_filename
);
260 static void machine_set_kernel(Object
*obj
, const char *value
, Error
**errp
)
262 MachineState
*ms
= MACHINE(obj
);
264 g_free(ms
->kernel_filename
);
265 ms
->kernel_filename
= g_strdup(value
);
268 static char *machine_get_initrd(Object
*obj
, Error
**errp
)
270 MachineState
*ms
= MACHINE(obj
);
272 return g_strdup(ms
->initrd_filename
);
275 static void machine_set_initrd(Object
*obj
, const char *value
, Error
**errp
)
277 MachineState
*ms
= MACHINE(obj
);
279 g_free(ms
->initrd_filename
);
280 ms
->initrd_filename
= g_strdup(value
);
283 static char *machine_get_append(Object
*obj
, Error
**errp
)
285 MachineState
*ms
= MACHINE(obj
);
287 return g_strdup(ms
->kernel_cmdline
);
290 static void machine_set_append(Object
*obj
, const char *value
, Error
**errp
)
292 MachineState
*ms
= MACHINE(obj
);
294 g_free(ms
->kernel_cmdline
);
295 ms
->kernel_cmdline
= g_strdup(value
);
298 static char *machine_get_dtb(Object
*obj
, Error
**errp
)
300 MachineState
*ms
= MACHINE(obj
);
302 return g_strdup(ms
->dtb
);
305 static void machine_set_dtb(Object
*obj
, const char *value
, Error
**errp
)
307 MachineState
*ms
= MACHINE(obj
);
310 ms
->dtb
= g_strdup(value
);
313 static char *machine_get_dumpdtb(Object
*obj
, Error
**errp
)
315 MachineState
*ms
= MACHINE(obj
);
317 return g_strdup(ms
->dumpdtb
);
320 static void machine_set_dumpdtb(Object
*obj
, const char *value
, Error
**errp
)
322 MachineState
*ms
= MACHINE(obj
);
325 ms
->dumpdtb
= g_strdup(value
);
328 static void machine_get_phandle_start(Object
*obj
, Visitor
*v
,
329 const char *name
, void *opaque
,
332 MachineState
*ms
= MACHINE(obj
);
333 int64_t value
= ms
->phandle_start
;
335 visit_type_int(v
, name
, &value
, errp
);
338 static void machine_set_phandle_start(Object
*obj
, Visitor
*v
,
339 const char *name
, void *opaque
,
342 MachineState
*ms
= MACHINE(obj
);
345 if (!visit_type_int(v
, name
, &value
, errp
)) {
349 ms
->phandle_start
= value
;
352 static char *machine_get_dt_compatible(Object
*obj
, Error
**errp
)
354 MachineState
*ms
= MACHINE(obj
);
356 return g_strdup(ms
->dt_compatible
);
359 static void machine_set_dt_compatible(Object
*obj
, const char *value
, Error
**errp
)
361 MachineState
*ms
= MACHINE(obj
);
363 g_free(ms
->dt_compatible
);
364 ms
->dt_compatible
= g_strdup(value
);
367 static bool machine_get_dump_guest_core(Object
*obj
, Error
**errp
)
369 MachineState
*ms
= MACHINE(obj
);
371 return ms
->dump_guest_core
;
374 static void machine_set_dump_guest_core(Object
*obj
, bool value
, Error
**errp
)
376 MachineState
*ms
= MACHINE(obj
);
378 ms
->dump_guest_core
= value
;
381 static bool machine_get_mem_merge(Object
*obj
, Error
**errp
)
383 MachineState
*ms
= MACHINE(obj
);
385 return ms
->mem_merge
;
388 static void machine_set_mem_merge(Object
*obj
, bool value
, Error
**errp
)
390 MachineState
*ms
= MACHINE(obj
);
392 ms
->mem_merge
= value
;
395 static bool machine_get_usb(Object
*obj
, Error
**errp
)
397 MachineState
*ms
= MACHINE(obj
);
402 static void machine_set_usb(Object
*obj
, bool value
, Error
**errp
)
404 MachineState
*ms
= MACHINE(obj
);
407 ms
->usb_disabled
= !value
;
410 static bool machine_get_graphics(Object
*obj
, Error
**errp
)
412 MachineState
*ms
= MACHINE(obj
);
414 return ms
->enable_graphics
;
417 static void machine_set_graphics(Object
*obj
, bool value
, Error
**errp
)
419 MachineState
*ms
= MACHINE(obj
);
421 ms
->enable_graphics
= value
;
424 static char *machine_get_firmware(Object
*obj
, Error
**errp
)
426 MachineState
*ms
= MACHINE(obj
);
428 return g_strdup(ms
->firmware
);
431 static void machine_set_firmware(Object
*obj
, const char *value
, Error
**errp
)
433 MachineState
*ms
= MACHINE(obj
);
435 g_free(ms
->firmware
);
436 ms
->firmware
= g_strdup(value
);
439 static void machine_set_suppress_vmdesc(Object
*obj
, bool value
, Error
**errp
)
441 MachineState
*ms
= MACHINE(obj
);
443 ms
->suppress_vmdesc
= value
;
446 static bool machine_get_suppress_vmdesc(Object
*obj
, Error
**errp
)
448 MachineState
*ms
= MACHINE(obj
);
450 return ms
->suppress_vmdesc
;
453 static char *machine_get_memory_encryption(Object
*obj
, Error
**errp
)
455 MachineState
*ms
= MACHINE(obj
);
458 return g_strdup(object_get_canonical_path_component(OBJECT(ms
->cgs
)));
464 static void machine_set_memory_encryption(Object
*obj
, const char *value
,
468 object_resolve_path_component(object_get_objects_root(), value
);
471 error_setg(errp
, "No such memory encryption object '%s'", value
);
475 object_property_set_link(obj
, "confidential-guest-support", cgs
, errp
);
478 static void machine_check_confidential_guest_support(const Object
*obj
,
484 * So far the only constraint is that the target has the
485 * TYPE_CONFIDENTIAL_GUEST_SUPPORT interface, and that's checked
490 static bool machine_get_nvdimm(Object
*obj
, Error
**errp
)
492 MachineState
*ms
= MACHINE(obj
);
494 return ms
->nvdimms_state
->is_enabled
;
497 static void machine_set_nvdimm(Object
*obj
, bool value
, Error
**errp
)
499 MachineState
*ms
= MACHINE(obj
);
501 ms
->nvdimms_state
->is_enabled
= value
;
504 static bool machine_get_hmat(Object
*obj
, Error
**errp
)
506 MachineState
*ms
= MACHINE(obj
);
508 return ms
->numa_state
->hmat_enabled
;
511 static void machine_set_hmat(Object
*obj
, bool value
, Error
**errp
)
513 MachineState
*ms
= MACHINE(obj
);
515 ms
->numa_state
->hmat_enabled
= value
;
518 static char *machine_get_nvdimm_persistence(Object
*obj
, Error
**errp
)
520 MachineState
*ms
= MACHINE(obj
);
522 return g_strdup(ms
->nvdimms_state
->persistence_string
);
525 static void machine_set_nvdimm_persistence(Object
*obj
, const char *value
,
528 MachineState
*ms
= MACHINE(obj
);
529 NVDIMMState
*nvdimms_state
= ms
->nvdimms_state
;
531 if (strcmp(value
, "cpu") == 0) {
532 nvdimms_state
->persistence
= 3;
533 } else if (strcmp(value
, "mem-ctrl") == 0) {
534 nvdimms_state
->persistence
= 2;
536 error_setg(errp
, "-machine nvdimm-persistence=%s: unsupported option",
541 g_free(nvdimms_state
->persistence_string
);
542 nvdimms_state
->persistence_string
= g_strdup(value
);
545 void machine_class_allow_dynamic_sysbus_dev(MachineClass
*mc
, const char *type
)
547 QAPI_LIST_PREPEND(mc
->allowed_dynamic_sysbus_devices
, g_strdup(type
));
550 bool device_is_dynamic_sysbus(MachineClass
*mc
, DeviceState
*dev
)
552 Object
*obj
= OBJECT(dev
);
554 if (!object_dynamic_cast(obj
, TYPE_SYS_BUS_DEVICE
)) {
558 return device_type_is_dynamic_sysbus(mc
, object_get_typename(obj
));
561 bool device_type_is_dynamic_sysbus(MachineClass
*mc
, const char *type
)
563 bool allowed
= false;
565 ObjectClass
*klass
= object_class_by_name(type
);
567 for (wl
= mc
->allowed_dynamic_sysbus_devices
;
570 allowed
|= !!object_class_dynamic_cast(klass
, wl
->value
);
576 static char *machine_get_memdev(Object
*obj
, Error
**errp
)
578 MachineState
*ms
= MACHINE(obj
);
580 return g_strdup(ms
->ram_memdev_id
);
583 static void machine_set_memdev(Object
*obj
, const char *value
, Error
**errp
)
585 MachineState
*ms
= MACHINE(obj
);
587 g_free(ms
->ram_memdev_id
);
588 ms
->ram_memdev_id
= g_strdup(value
);
591 HotpluggableCPUList
*machine_query_hotpluggable_cpus(MachineState
*machine
)
594 HotpluggableCPUList
*head
= NULL
;
595 MachineClass
*mc
= MACHINE_GET_CLASS(machine
);
597 /* force board to initialize possible_cpus if it hasn't been done yet */
598 mc
->possible_cpu_arch_ids(machine
);
600 for (i
= 0; i
< machine
->possible_cpus
->len
; i
++) {
602 HotpluggableCPU
*cpu_item
= g_new0(typeof(*cpu_item
), 1);
604 cpu_item
->type
= g_strdup(machine
->possible_cpus
->cpus
[i
].type
);
605 cpu_item
->vcpus_count
= machine
->possible_cpus
->cpus
[i
].vcpus_count
;
606 cpu_item
->props
= g_memdup(&machine
->possible_cpus
->cpus
[i
].props
,
607 sizeof(*cpu_item
->props
));
609 cpu
= machine
->possible_cpus
->cpus
[i
].cpu
;
611 cpu_item
->has_qom_path
= true;
612 cpu_item
->qom_path
= object_get_canonical_path(cpu
);
614 QAPI_LIST_PREPEND(head
, cpu_item
);
620 * machine_set_cpu_numa_node:
621 * @machine: machine object to modify
622 * @props: specifies which cpu objects to assign to
623 * numa node specified by @props.node_id
624 * @errp: if an error occurs, a pointer to an area to store the error
626 * Associate NUMA node specified by @props.node_id with cpu slots that
627 * match socket/core/thread-ids specified by @props. It's recommended to use
628 * query-hotpluggable-cpus.props values to specify affected cpu slots,
629 * which would lead to exact 1:1 mapping of cpu slots to NUMA node.
631 * However for CLI convenience it's possible to pass in subset of properties,
632 * which would affect all cpu slots that match it.
634 * -smp 4,cores=2,sockets=2 -numa node,nodeid=0 -numa node,nodeid=1 \
635 * -numa cpu,node-id=0,socket_id=0 \
636 * -numa cpu,node-id=1,socket_id=1
637 * will assign all child cores of socket 0 to node 0 and
638 * of socket 1 to node 1.
640 * On attempt of reassigning (already assigned) cpu slot to another NUMA node,
642 * Empty subset is disallowed and function will return with error in this case.
644 void machine_set_cpu_numa_node(MachineState
*machine
,
645 const CpuInstanceProperties
*props
, Error
**errp
)
647 MachineClass
*mc
= MACHINE_GET_CLASS(machine
);
648 NodeInfo
*numa_info
= machine
->numa_state
->nodes
;
652 if (!mc
->possible_cpu_arch_ids
) {
653 error_setg(errp
, "mapping of CPUs to NUMA node is not supported");
657 /* disabling node mapping is not supported, forbid it */
658 assert(props
->has_node_id
);
660 /* force board to initialize possible_cpus if it hasn't been done yet */
661 mc
->possible_cpu_arch_ids(machine
);
663 for (i
= 0; i
< machine
->possible_cpus
->len
; i
++) {
664 CPUArchId
*slot
= &machine
->possible_cpus
->cpus
[i
];
666 /* reject unsupported by board properties */
667 if (props
->has_thread_id
&& !slot
->props
.has_thread_id
) {
668 error_setg(errp
, "thread-id is not supported");
672 if (props
->has_core_id
&& !slot
->props
.has_core_id
) {
673 error_setg(errp
, "core-id is not supported");
677 if (props
->has_socket_id
&& !slot
->props
.has_socket_id
) {
678 error_setg(errp
, "socket-id is not supported");
682 if (props
->has_die_id
&& !slot
->props
.has_die_id
) {
683 error_setg(errp
, "die-id is not supported");
687 /* skip slots with explicit mismatch */
688 if (props
->has_thread_id
&& props
->thread_id
!= slot
->props
.thread_id
) {
692 if (props
->has_core_id
&& props
->core_id
!= slot
->props
.core_id
) {
696 if (props
->has_die_id
&& props
->die_id
!= slot
->props
.die_id
) {
700 if (props
->has_socket_id
&& props
->socket_id
!= slot
->props
.socket_id
) {
704 /* reject assignment if slot is already assigned, for compatibility
705 * of legacy cpu_index mapping with SPAPR core based mapping do not
706 * error out if cpu thread and matched core have the same node-id */
707 if (slot
->props
.has_node_id
&&
708 slot
->props
.node_id
!= props
->node_id
) {
709 error_setg(errp
, "CPU is already assigned to node-id: %" PRId64
,
710 slot
->props
.node_id
);
714 /* assign slot to node as it's matched '-numa cpu' key */
716 slot
->props
.node_id
= props
->node_id
;
717 slot
->props
.has_node_id
= props
->has_node_id
;
719 if (machine
->numa_state
->hmat_enabled
) {
720 if ((numa_info
[props
->node_id
].initiator
< MAX_NODES
) &&
721 (props
->node_id
!= numa_info
[props
->node_id
].initiator
)) {
722 error_setg(errp
, "The initiator of CPU NUMA node %" PRId64
723 " should be itself (got %" PRIu16
")",
724 props
->node_id
, numa_info
[props
->node_id
].initiator
);
727 numa_info
[props
->node_id
].has_cpu
= true;
728 numa_info
[props
->node_id
].initiator
= props
->node_id
;
733 error_setg(errp
, "no match found");
737 static void machine_get_smp(Object
*obj
, Visitor
*v
, const char *name
,
738 void *opaque
, Error
**errp
)
740 MachineState
*ms
= MACHINE(obj
);
741 SMPConfiguration
*config
= &(SMPConfiguration
){
742 .has_cpus
= true, .cpus
= ms
->smp
.cpus
,
743 .has_sockets
= true, .sockets
= ms
->smp
.sockets
,
744 .has_dies
= true, .dies
= ms
->smp
.dies
,
745 .has_cores
= true, .cores
= ms
->smp
.cores
,
746 .has_threads
= true, .threads
= ms
->smp
.threads
,
747 .has_maxcpus
= true, .maxcpus
= ms
->smp
.max_cpus
,
749 if (!visit_type_SMPConfiguration(v
, name
, &config
, &error_abort
)) {
754 static void machine_set_smp(Object
*obj
, Visitor
*v
, const char *name
,
755 void *opaque
, Error
**errp
)
757 MachineState
*ms
= MACHINE(obj
);
758 g_autoptr(SMPConfiguration
) config
= NULL
;
760 if (!visit_type_SMPConfiguration(v
, name
, &config
, errp
)) {
764 smp_parse(ms
, config
, errp
);
767 static void machine_class_init(ObjectClass
*oc
, void *data
)
769 MachineClass
*mc
= MACHINE_CLASS(oc
);
771 /* Default 128 MB as guest ram size */
772 mc
->default_ram_size
= 128 * MiB
;
773 mc
->rom_file_has_mr
= true;
775 /* numa node memory size aligned on 8MB by default.
776 * On Linux, each node's border has to be 8MB aligned
778 mc
->numa_mem_align_shift
= 23;
780 object_class_property_add_str(oc
, "kernel",
781 machine_get_kernel
, machine_set_kernel
);
782 object_class_property_set_description(oc
, "kernel",
783 "Linux kernel image file");
785 object_class_property_add_str(oc
, "initrd",
786 machine_get_initrd
, machine_set_initrd
);
787 object_class_property_set_description(oc
, "initrd",
788 "Linux initial ramdisk file");
790 object_class_property_add_str(oc
, "append",
791 machine_get_append
, machine_set_append
);
792 object_class_property_set_description(oc
, "append",
793 "Linux kernel command line");
795 object_class_property_add_str(oc
, "dtb",
796 machine_get_dtb
, machine_set_dtb
);
797 object_class_property_set_description(oc
, "dtb",
798 "Linux kernel device tree file");
800 object_class_property_add_str(oc
, "dumpdtb",
801 machine_get_dumpdtb
, machine_set_dumpdtb
);
802 object_class_property_set_description(oc
, "dumpdtb",
803 "Dump current dtb to a file and quit");
805 object_class_property_add(oc
, "smp", "SMPConfiguration",
806 machine_get_smp
, machine_set_smp
,
808 object_class_property_set_description(oc
, "smp",
811 object_class_property_add(oc
, "phandle-start", "int",
812 machine_get_phandle_start
, machine_set_phandle_start
,
814 object_class_property_set_description(oc
, "phandle-start",
815 "The first phandle ID we may generate dynamically");
817 object_class_property_add_str(oc
, "dt-compatible",
818 machine_get_dt_compatible
, machine_set_dt_compatible
);
819 object_class_property_set_description(oc
, "dt-compatible",
820 "Overrides the \"compatible\" property of the dt root node");
822 object_class_property_add_bool(oc
, "dump-guest-core",
823 machine_get_dump_guest_core
, machine_set_dump_guest_core
);
824 object_class_property_set_description(oc
, "dump-guest-core",
825 "Include guest memory in a core dump");
827 object_class_property_add_bool(oc
, "mem-merge",
828 machine_get_mem_merge
, machine_set_mem_merge
);
829 object_class_property_set_description(oc
, "mem-merge",
830 "Enable/disable memory merge support");
832 object_class_property_add_bool(oc
, "usb",
833 machine_get_usb
, machine_set_usb
);
834 object_class_property_set_description(oc
, "usb",
835 "Set on/off to enable/disable usb");
837 object_class_property_add_bool(oc
, "graphics",
838 machine_get_graphics
, machine_set_graphics
);
839 object_class_property_set_description(oc
, "graphics",
840 "Set on/off to enable/disable graphics emulation");
842 object_class_property_add_str(oc
, "firmware",
843 machine_get_firmware
, machine_set_firmware
);
844 object_class_property_set_description(oc
, "firmware",
847 object_class_property_add_bool(oc
, "suppress-vmdesc",
848 machine_get_suppress_vmdesc
, machine_set_suppress_vmdesc
);
849 object_class_property_set_description(oc
, "suppress-vmdesc",
850 "Set on to disable self-describing migration");
852 object_class_property_add_link(oc
, "confidential-guest-support",
853 TYPE_CONFIDENTIAL_GUEST_SUPPORT
,
854 offsetof(MachineState
, cgs
),
855 machine_check_confidential_guest_support
,
856 OBJ_PROP_LINK_STRONG
);
857 object_class_property_set_description(oc
, "confidential-guest-support",
858 "Set confidential guest scheme to support");
860 /* For compatibility */
861 object_class_property_add_str(oc
, "memory-encryption",
862 machine_get_memory_encryption
, machine_set_memory_encryption
);
863 object_class_property_set_description(oc
, "memory-encryption",
864 "Set memory encryption object to use");
866 object_class_property_add_str(oc
, "memory-backend",
867 machine_get_memdev
, machine_set_memdev
);
868 object_class_property_set_description(oc
, "memory-backend",
870 "Valid value is ID of hostmem based backend");
873 static void machine_class_base_init(ObjectClass
*oc
, void *data
)
875 MachineClass
*mc
= MACHINE_CLASS(oc
);
876 mc
->max_cpus
= mc
->max_cpus
?: 1;
877 mc
->min_cpus
= mc
->min_cpus
?: 1;
878 mc
->default_cpus
= mc
->default_cpus
?: 1;
880 if (!object_class_is_abstract(oc
)) {
881 const char *cname
= object_class_get_name(oc
);
882 assert(g_str_has_suffix(cname
, TYPE_MACHINE_SUFFIX
));
883 mc
->name
= g_strndup(cname
,
884 strlen(cname
) - strlen(TYPE_MACHINE_SUFFIX
));
885 mc
->compat_props
= g_ptr_array_new();
889 static void machine_initfn(Object
*obj
)
891 MachineState
*ms
= MACHINE(obj
);
892 MachineClass
*mc
= MACHINE_GET_CLASS(obj
);
894 container_get(obj
, "/peripheral");
895 container_get(obj
, "/peripheral-anon");
897 ms
->dump_guest_core
= true;
898 ms
->mem_merge
= true;
899 ms
->enable_graphics
= true;
900 ms
->kernel_cmdline
= g_strdup("");
902 if (mc
->nvdimm_supported
) {
903 Object
*obj
= OBJECT(ms
);
905 ms
->nvdimms_state
= g_new0(NVDIMMState
, 1);
906 object_property_add_bool(obj
, "nvdimm",
907 machine_get_nvdimm
, machine_set_nvdimm
);
908 object_property_set_description(obj
, "nvdimm",
909 "Set on/off to enable/disable "
910 "NVDIMM instantiation");
912 object_property_add_str(obj
, "nvdimm-persistence",
913 machine_get_nvdimm_persistence
,
914 machine_set_nvdimm_persistence
);
915 object_property_set_description(obj
, "nvdimm-persistence",
916 "Set NVDIMM persistence"
917 "Valid values are cpu, mem-ctrl");
920 if (mc
->cpu_index_to_instance_props
&& mc
->get_default_cpu_node_id
) {
921 ms
->numa_state
= g_new0(NumaState
, 1);
922 object_property_add_bool(obj
, "hmat",
923 machine_get_hmat
, machine_set_hmat
);
924 object_property_set_description(obj
, "hmat",
925 "Set on/off to enable/disable "
926 "ACPI Heterogeneous Memory Attribute "
930 /* default to mc->default_cpus */
931 ms
->smp
.cpus
= mc
->default_cpus
;
932 ms
->smp
.max_cpus
= mc
->default_cpus
;
939 static void machine_finalize(Object
*obj
)
941 MachineState
*ms
= MACHINE(obj
);
943 g_free(ms
->kernel_filename
);
944 g_free(ms
->initrd_filename
);
945 g_free(ms
->kernel_cmdline
);
948 g_free(ms
->dt_compatible
);
949 g_free(ms
->firmware
);
950 g_free(ms
->device_memory
);
951 g_free(ms
->nvdimms_state
);
952 g_free(ms
->numa_state
);
955 bool machine_usb(MachineState
*machine
)
960 int machine_phandle_start(MachineState
*machine
)
962 return machine
->phandle_start
;
965 bool machine_dump_guest_core(MachineState
*machine
)
967 return machine
->dump_guest_core
;
970 bool machine_mem_merge(MachineState
*machine
)
972 return machine
->mem_merge
;
975 static char *cpu_slot_to_string(const CPUArchId
*cpu
)
977 GString
*s
= g_string_new(NULL
);
978 if (cpu
->props
.has_socket_id
) {
979 g_string_append_printf(s
, "socket-id: %"PRId64
, cpu
->props
.socket_id
);
981 if (cpu
->props
.has_die_id
) {
983 g_string_append_printf(s
, ", ");
985 g_string_append_printf(s
, "die-id: %"PRId64
, cpu
->props
.die_id
);
987 if (cpu
->props
.has_core_id
) {
989 g_string_append_printf(s
, ", ");
991 g_string_append_printf(s
, "core-id: %"PRId64
, cpu
->props
.core_id
);
993 if (cpu
->props
.has_thread_id
) {
995 g_string_append_printf(s
, ", ");
997 g_string_append_printf(s
, "thread-id: %"PRId64
, cpu
->props
.thread_id
);
999 return g_string_free(s
, false);
1002 static void numa_validate_initiator(NumaState
*numa_state
)
1005 NodeInfo
*numa_info
= numa_state
->nodes
;
1007 for (i
= 0; i
< numa_state
->num_nodes
; i
++) {
1008 if (numa_info
[i
].initiator
== MAX_NODES
) {
1009 error_report("The initiator of NUMA node %d is missing, use "
1010 "'-numa node,initiator' option to declare it", i
);
1014 if (!numa_info
[numa_info
[i
].initiator
].present
) {
1015 error_report("NUMA node %" PRIu16
" is missing, use "
1016 "'-numa node' option to declare it first",
1017 numa_info
[i
].initiator
);
1021 if (!numa_info
[numa_info
[i
].initiator
].has_cpu
) {
1022 error_report("The initiator of NUMA node %d is invalid", i
);
1028 static void machine_numa_finish_cpu_init(MachineState
*machine
)
1031 bool default_mapping
;
1032 GString
*s
= g_string_new(NULL
);
1033 MachineClass
*mc
= MACHINE_GET_CLASS(machine
);
1034 const CPUArchIdList
*possible_cpus
= mc
->possible_cpu_arch_ids(machine
);
1036 assert(machine
->numa_state
->num_nodes
);
1037 for (i
= 0; i
< possible_cpus
->len
; i
++) {
1038 if (possible_cpus
->cpus
[i
].props
.has_node_id
) {
1042 default_mapping
= (i
== possible_cpus
->len
);
1044 for (i
= 0; i
< possible_cpus
->len
; i
++) {
1045 const CPUArchId
*cpu_slot
= &possible_cpus
->cpus
[i
];
1047 if (!cpu_slot
->props
.has_node_id
) {
1048 /* fetch default mapping from board and enable it */
1049 CpuInstanceProperties props
= cpu_slot
->props
;
1051 props
.node_id
= mc
->get_default_cpu_node_id(machine
, i
);
1052 if (!default_mapping
) {
1053 /* record slots with not set mapping,
1054 * TODO: make it hard error in future */
1055 char *cpu_str
= cpu_slot_to_string(cpu_slot
);
1056 g_string_append_printf(s
, "%sCPU %d [%s]",
1057 s
->len
? ", " : "", i
, cpu_str
);
1060 /* non mapped cpus used to fallback to node 0 */
1064 props
.has_node_id
= true;
1065 machine_set_cpu_numa_node(machine
, &props
, &error_fatal
);
1069 if (machine
->numa_state
->hmat_enabled
) {
1070 numa_validate_initiator(machine
->numa_state
);
1073 if (s
->len
&& !qtest_enabled()) {
1074 warn_report("CPU(s) not present in any NUMA nodes: %s",
1076 warn_report("All CPU(s) up to maxcpus should be described "
1077 "in NUMA config, ability to start up with partial NUMA "
1078 "mappings is obsoleted and will be removed in future");
1080 g_string_free(s
, true);
1083 MemoryRegion
*machine_consume_memdev(MachineState
*machine
,
1084 HostMemoryBackend
*backend
)
1086 MemoryRegion
*ret
= host_memory_backend_get_memory(backend
);
1088 if (memory_region_is_mapped(ret
)) {
1089 error_report("memory backend %s can't be used multiple times.",
1090 object_get_canonical_path_component(OBJECT(backend
)));
1093 host_memory_backend_set_mapped(backend
, true);
1094 vmstate_register_ram_global(ret
);
1098 void machine_run_board_init(MachineState
*machine
)
1100 MachineClass
*machine_class
= MACHINE_GET_CLASS(machine
);
1101 ObjectClass
*oc
= object_class_by_name(machine
->cpu_type
);
1104 /* This checkpoint is required by replay to separate prior clock
1105 reading from the other reads, because timer polling functions query
1106 clock values from the log. */
1107 replay_checkpoint(CHECKPOINT_INIT
);
1109 if (machine
->ram_memdev_id
) {
1111 o
= object_resolve_path_type(machine
->ram_memdev_id
,
1112 TYPE_MEMORY_BACKEND
, NULL
);
1113 machine
->ram
= machine_consume_memdev(machine
, MEMORY_BACKEND(o
));
1116 if (machine
->numa_state
) {
1117 numa_complete_configuration(machine
);
1118 if (machine
->numa_state
->num_nodes
) {
1119 machine_numa_finish_cpu_init(machine
);
1123 /* If the machine supports the valid_cpu_types check and the user
1124 * specified a CPU with -cpu check here that the user CPU is supported.
1126 if (machine_class
->valid_cpu_types
&& machine
->cpu_type
) {
1129 for (i
= 0; machine_class
->valid_cpu_types
[i
]; i
++) {
1130 if (object_class_dynamic_cast(oc
,
1131 machine_class
->valid_cpu_types
[i
])) {
1132 /* The user specificed CPU is in the valid field, we are
1139 if (!machine_class
->valid_cpu_types
[i
]) {
1140 /* The user specified CPU is not valid */
1141 error_report("Invalid CPU type: %s", machine
->cpu_type
);
1142 error_printf("The valid types are: %s",
1143 machine_class
->valid_cpu_types
[0]);
1144 for (i
= 1; machine_class
->valid_cpu_types
[i
]; i
++) {
1145 error_printf(", %s", machine_class
->valid_cpu_types
[i
]);
1153 /* Check if CPU type is deprecated and warn if so */
1155 if (cc
&& cc
->deprecation_note
) {
1156 warn_report("CPU model %s is deprecated -- %s", machine
->cpu_type
,
1157 cc
->deprecation_note
);
1162 * With confidential guests, the host can't see the real
1163 * contents of RAM, so there's no point in it trying to merge
1166 machine_set_mem_merge(OBJECT(machine
), false, &error_abort
);
1169 * Virtio devices can't count on directly accessing guest
1170 * memory, so they need iommu_platform=on to use normal DMA
1171 * mechanisms. That requires also disabling legacy virtio
1172 * support for those virtio pci devices which allow it.
1174 object_register_sugar_prop(TYPE_VIRTIO_PCI
, "disable-legacy",
1176 object_register_sugar_prop(TYPE_VIRTIO_DEVICE
, "iommu_platform",
1180 accel_init_interfaces(ACCEL_GET_CLASS(machine
->accelerator
));
1181 machine_class
->init(machine
);
1182 phase_advance(PHASE_MACHINE_INITIALIZED
);
1185 static NotifierList machine_init_done_notifiers
=
1186 NOTIFIER_LIST_INITIALIZER(machine_init_done_notifiers
);
1188 void qemu_add_machine_init_done_notifier(Notifier
*notify
)
1190 notifier_list_add(&machine_init_done_notifiers
, notify
);
1191 if (phase_check(PHASE_MACHINE_READY
)) {
1192 notify
->notify(notify
, NULL
);
1196 void qemu_remove_machine_init_done_notifier(Notifier
*notify
)
1198 notifier_remove(notify
);
1201 void qdev_machine_creation_done(void)
1203 cpu_synchronize_all_post_init();
1205 if (current_machine
->boot_once
) {
1206 qemu_boot_set(current_machine
->boot_once
, &error_fatal
);
1207 qemu_register_reset(restore_boot_order
, g_strdup(current_machine
->boot_order
));
1211 * ok, initial machine setup is done, starting from now we can
1212 * only create hotpluggable devices
1214 phase_advance(PHASE_MACHINE_READY
);
1215 qdev_assert_realized_properly();
1217 /* TODO: once all bus devices are qdevified, this should be done
1218 * when bus is created by qdev.c */
1220 * TODO: If we had a main 'reset container' that the whole system
1221 * lived in, we could reset that using the multi-phase reset
1222 * APIs. For the moment, we just reset the sysbus, which will cause
1223 * all devices hanging off it (and all their child buses, recursively)
1224 * to be reset. Note that this will *not* reset any Device objects
1225 * which are not attached to some part of the qbus tree!
1227 qemu_register_reset(resettable_cold_reset_fn
, sysbus_get_default());
1229 notifier_list_notify(&machine_init_done_notifiers
, NULL
);
1231 if (rom_check_and_register_reset() != 0) {
1237 /* This checkpoint is required by replay to separate prior clock
1238 reading from the other reads, because timer polling functions query
1239 clock values from the log. */
1240 replay_checkpoint(CHECKPOINT_RESET
);
1241 qemu_system_reset(SHUTDOWN_CAUSE_NONE
);
1242 register_global_state();
1245 static const TypeInfo machine_info
= {
1246 .name
= TYPE_MACHINE
,
1247 .parent
= TYPE_OBJECT
,
1249 .class_size
= sizeof(MachineClass
),
1250 .class_init
= machine_class_init
,
1251 .class_base_init
= machine_class_base_init
,
1252 .instance_size
= sizeof(MachineState
),
1253 .instance_init
= machine_initfn
,
1254 .instance_finalize
= machine_finalize
,
1257 static void machine_register_types(void)
1259 type_register_static(&machine_info
);
1262 type_init(machine_register_types
)