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/visitor.h"
23 #include "hw/sysbus.h"
24 #include "sysemu/cpus.h"
25 #include "sysemu/sysemu.h"
26 #include "sysemu/reset.h"
27 #include "sysemu/runstate.h"
28 #include "sysemu/numa.h"
29 #include "qemu/error-report.h"
30 #include "sysemu/qtest.h"
31 #include "hw/pci/pci.h"
32 #include "hw/mem/nvdimm.h"
33 #include "migration/global_state.h"
34 #include "migration/vmstate.h"
35 #include "exec/confidential-guest-support.h"
36 #include "hw/virtio/virtio.h"
37 #include "hw/virtio/virtio-pci.h"
39 GlobalProperty hw_compat_5_2
[] = {};
40 const size_t hw_compat_5_2_len
= G_N_ELEMENTS(hw_compat_5_2
);
42 GlobalProperty hw_compat_5_1
[] = {
43 { "vhost-scsi", "num_queues", "1"},
44 { "vhost-user-blk", "num-queues", "1"},
45 { "vhost-user-scsi", "num_queues", "1"},
46 { "virtio-blk-device", "num-queues", "1"},
47 { "virtio-scsi-device", "num_queues", "1"},
48 { "nvme", "use-intel-id", "on"},
49 { "pvpanic", "events", "1"}, /* PVPANIC_PANICKED */
51 const size_t hw_compat_5_1_len
= G_N_ELEMENTS(hw_compat_5_1
);
53 GlobalProperty hw_compat_5_0
[] = {
54 { "pci-host-bridge", "x-config-reg-migration-enabled", "off" },
55 { "virtio-balloon-device", "page-poison", "false" },
56 { "vmport", "x-read-set-eax", "off" },
57 { "vmport", "x-signal-unsupported-cmd", "off" },
58 { "vmport", "x-report-vmx-type", "off" },
59 { "vmport", "x-cmds-v2", "off" },
60 { "virtio-device", "x-disable-legacy-check", "true" },
62 const size_t hw_compat_5_0_len
= G_N_ELEMENTS(hw_compat_5_0
);
64 GlobalProperty hw_compat_4_2
[] = {
65 { "virtio-blk-device", "queue-size", "128"},
66 { "virtio-scsi-device", "virtqueue_size", "128"},
67 { "virtio-blk-device", "x-enable-wce-if-config-wce", "off" },
68 { "virtio-blk-device", "seg-max-adjust", "off"},
69 { "virtio-scsi-device", "seg_max_adjust", "off"},
70 { "vhost-blk-device", "seg_max_adjust", "off"},
71 { "usb-host", "suppress-remote-wake", "off" },
72 { "usb-redir", "suppress-remote-wake", "off" },
73 { "qxl", "revision", "4" },
74 { "qxl-vga", "revision", "4" },
75 { "fw_cfg", "acpi-mr-restore", "false" },
76 { "virtio-device", "use-disabled-flag", "false" },
78 const size_t hw_compat_4_2_len
= G_N_ELEMENTS(hw_compat_4_2
);
80 GlobalProperty hw_compat_4_1
[] = {
81 { "virtio-pci", "x-pcie-flr-init", "off" },
83 const size_t hw_compat_4_1_len
= G_N_ELEMENTS(hw_compat_4_1
);
85 GlobalProperty hw_compat_4_0
[] = {
86 { "VGA", "edid", "false" },
87 { "secondary-vga", "edid", "false" },
88 { "bochs-display", "edid", "false" },
89 { "virtio-vga", "edid", "false" },
90 { "virtio-gpu-device", "edid", "false" },
91 { "virtio-device", "use-started", "false" },
92 { "virtio-balloon-device", "qemu-4-0-config-size", "true" },
93 { "pl031", "migrate-tick-offset", "false" },
95 const size_t hw_compat_4_0_len
= G_N_ELEMENTS(hw_compat_4_0
);
97 GlobalProperty hw_compat_3_1
[] = {
98 { "pcie-root-port", "x-speed", "2_5" },
99 { "pcie-root-port", "x-width", "1" },
100 { "memory-backend-file", "x-use-canonical-path-for-ramblock-id", "true" },
101 { "memory-backend-memfd", "x-use-canonical-path-for-ramblock-id", "true" },
102 { "tpm-crb", "ppi", "false" },
103 { "tpm-tis", "ppi", "false" },
104 { "usb-kbd", "serial", "42" },
105 { "usb-mouse", "serial", "42" },
106 { "usb-tablet", "serial", "42" },
107 { "virtio-blk-device", "discard", "false" },
108 { "virtio-blk-device", "write-zeroes", "false" },
109 { "virtio-balloon-device", "qemu-4-0-config-size", "false" },
110 { "pcie-root-port-base", "disable-acs", "true" }, /* Added in 4.1 */
112 const size_t hw_compat_3_1_len
= G_N_ELEMENTS(hw_compat_3_1
);
114 GlobalProperty hw_compat_3_0
[] = {};
115 const size_t hw_compat_3_0_len
= G_N_ELEMENTS(hw_compat_3_0
);
117 GlobalProperty hw_compat_2_12
[] = {
118 { "migration", "decompress-error-check", "off" },
119 { "hda-audio", "use-timer", "false" },
120 { "cirrus-vga", "global-vmstate", "true" },
121 { "VGA", "global-vmstate", "true" },
122 { "vmware-svga", "global-vmstate", "true" },
123 { "qxl-vga", "global-vmstate", "true" },
125 const size_t hw_compat_2_12_len
= G_N_ELEMENTS(hw_compat_2_12
);
127 GlobalProperty hw_compat_2_11
[] = {
128 { "hpet", "hpet-offset-saved", "false" },
129 { "virtio-blk-pci", "vectors", "2" },
130 { "vhost-user-blk-pci", "vectors", "2" },
131 { "e1000", "migrate_tso_props", "off" },
133 const size_t hw_compat_2_11_len
= G_N_ELEMENTS(hw_compat_2_11
);
135 GlobalProperty hw_compat_2_10
[] = {
136 { "virtio-mouse-device", "wheel-axis", "false" },
137 { "virtio-tablet-device", "wheel-axis", "false" },
139 const size_t hw_compat_2_10_len
= G_N_ELEMENTS(hw_compat_2_10
);
141 GlobalProperty hw_compat_2_9
[] = {
142 { "pci-bridge", "shpc", "off" },
143 { "intel-iommu", "pt", "off" },
144 { "virtio-net-device", "x-mtu-bypass-backend", "off" },
145 { "pcie-root-port", "x-migrate-msix", "false" },
147 const size_t hw_compat_2_9_len
= G_N_ELEMENTS(hw_compat_2_9
);
149 GlobalProperty hw_compat_2_8
[] = {
150 { "fw_cfg_mem", "x-file-slots", "0x10" },
151 { "fw_cfg_io", "x-file-slots", "0x10" },
152 { "pflash_cfi01", "old-multiple-chip-handling", "on" },
153 { "pci-bridge", "shpc", "on" },
154 { TYPE_PCI_DEVICE
, "x-pcie-extcap-init", "off" },
155 { "virtio-pci", "x-pcie-deverr-init", "off" },
156 { "virtio-pci", "x-pcie-lnkctl-init", "off" },
157 { "virtio-pci", "x-pcie-pm-init", "off" },
158 { "cirrus-vga", "vgamem_mb", "8" },
159 { "isa-cirrus-vga", "vgamem_mb", "8" },
161 const size_t hw_compat_2_8_len
= G_N_ELEMENTS(hw_compat_2_8
);
163 GlobalProperty hw_compat_2_7
[] = {
164 { "virtio-pci", "page-per-vq", "on" },
165 { "virtio-serial-device", "emergency-write", "off" },
166 { "ioapic", "version", "0x11" },
167 { "intel-iommu", "x-buggy-eim", "true" },
168 { "virtio-pci", "x-ignore-backend-features", "on" },
170 const size_t hw_compat_2_7_len
= G_N_ELEMENTS(hw_compat_2_7
);
172 GlobalProperty hw_compat_2_6
[] = {
173 { "virtio-mmio", "format_transport_address", "off" },
174 /* Optional because not all virtio-pci devices support legacy mode */
175 { "virtio-pci", "disable-modern", "on", .optional
= true },
176 { "virtio-pci", "disable-legacy", "off", .optional
= true },
178 const size_t hw_compat_2_6_len
= G_N_ELEMENTS(hw_compat_2_6
);
180 GlobalProperty hw_compat_2_5
[] = {
181 { "isa-fdc", "fallback", "144" },
182 { "pvscsi", "x-old-pci-configuration", "on" },
183 { "pvscsi", "x-disable-pcie", "on" },
184 { "vmxnet3", "x-old-msi-offsets", "on" },
185 { "vmxnet3", "x-disable-pcie", "on" },
187 const size_t hw_compat_2_5_len
= G_N_ELEMENTS(hw_compat_2_5
);
189 GlobalProperty hw_compat_2_4
[] = {
190 /* Optional because the 'scsi' property is Linux-only */
191 { "virtio-blk-device", "scsi", "true", .optional
= true },
192 { "e1000", "extra_mac_registers", "off" },
193 { "virtio-pci", "x-disable-pcie", "on" },
194 { "virtio-pci", "migrate-extra", "off" },
195 { "fw_cfg_mem", "dma_enabled", "off" },
196 { "fw_cfg_io", "dma_enabled", "off" }
198 const size_t hw_compat_2_4_len
= G_N_ELEMENTS(hw_compat_2_4
);
200 GlobalProperty hw_compat_2_3
[] = {
201 { "virtio-blk-pci", "any_layout", "off" },
202 { "virtio-balloon-pci", "any_layout", "off" },
203 { "virtio-serial-pci", "any_layout", "off" },
204 { "virtio-9p-pci", "any_layout", "off" },
205 { "virtio-rng-pci", "any_layout", "off" },
206 { TYPE_PCI_DEVICE
, "x-pcie-lnksta-dllla", "off" },
207 { "migration", "send-configuration", "off" },
208 { "migration", "send-section-footer", "off" },
209 { "migration", "store-global-state", "off" },
211 const size_t hw_compat_2_3_len
= G_N_ELEMENTS(hw_compat_2_3
);
213 GlobalProperty hw_compat_2_2
[] = {};
214 const size_t hw_compat_2_2_len
= G_N_ELEMENTS(hw_compat_2_2
);
216 GlobalProperty hw_compat_2_1
[] = {
217 { "intel-hda", "old_msi_addr", "on" },
218 { "VGA", "qemu-extended-regs", "off" },
219 { "secondary-vga", "qemu-extended-regs", "off" },
220 { "virtio-scsi-pci", "any_layout", "off" },
221 { "usb-mouse", "usb_version", "1" },
222 { "usb-kbd", "usb_version", "1" },
223 { "virtio-pci", "virtio-pci-bus-master-bug-migration", "on" },
225 const size_t hw_compat_2_1_len
= G_N_ELEMENTS(hw_compat_2_1
);
227 MachineState
*current_machine
;
229 static char *machine_get_kernel(Object
*obj
, Error
**errp
)
231 MachineState
*ms
= MACHINE(obj
);
233 return g_strdup(ms
->kernel_filename
);
236 static void machine_set_kernel(Object
*obj
, const char *value
, Error
**errp
)
238 MachineState
*ms
= MACHINE(obj
);
240 g_free(ms
->kernel_filename
);
241 ms
->kernel_filename
= g_strdup(value
);
244 static char *machine_get_initrd(Object
*obj
, Error
**errp
)
246 MachineState
*ms
= MACHINE(obj
);
248 return g_strdup(ms
->initrd_filename
);
251 static void machine_set_initrd(Object
*obj
, const char *value
, Error
**errp
)
253 MachineState
*ms
= MACHINE(obj
);
255 g_free(ms
->initrd_filename
);
256 ms
->initrd_filename
= g_strdup(value
);
259 static char *machine_get_append(Object
*obj
, Error
**errp
)
261 MachineState
*ms
= MACHINE(obj
);
263 return g_strdup(ms
->kernel_cmdline
);
266 static void machine_set_append(Object
*obj
, const char *value
, Error
**errp
)
268 MachineState
*ms
= MACHINE(obj
);
270 g_free(ms
->kernel_cmdline
);
271 ms
->kernel_cmdline
= g_strdup(value
);
274 static char *machine_get_dtb(Object
*obj
, Error
**errp
)
276 MachineState
*ms
= MACHINE(obj
);
278 return g_strdup(ms
->dtb
);
281 static void machine_set_dtb(Object
*obj
, const char *value
, Error
**errp
)
283 MachineState
*ms
= MACHINE(obj
);
286 ms
->dtb
= g_strdup(value
);
289 static char *machine_get_dumpdtb(Object
*obj
, Error
**errp
)
291 MachineState
*ms
= MACHINE(obj
);
293 return g_strdup(ms
->dumpdtb
);
296 static void machine_set_dumpdtb(Object
*obj
, const char *value
, Error
**errp
)
298 MachineState
*ms
= MACHINE(obj
);
301 ms
->dumpdtb
= g_strdup(value
);
304 static void machine_get_phandle_start(Object
*obj
, Visitor
*v
,
305 const char *name
, void *opaque
,
308 MachineState
*ms
= MACHINE(obj
);
309 int64_t value
= ms
->phandle_start
;
311 visit_type_int(v
, name
, &value
, errp
);
314 static void machine_set_phandle_start(Object
*obj
, Visitor
*v
,
315 const char *name
, void *opaque
,
318 MachineState
*ms
= MACHINE(obj
);
321 if (!visit_type_int(v
, name
, &value
, errp
)) {
325 ms
->phandle_start
= value
;
328 static char *machine_get_dt_compatible(Object
*obj
, Error
**errp
)
330 MachineState
*ms
= MACHINE(obj
);
332 return g_strdup(ms
->dt_compatible
);
335 static void machine_set_dt_compatible(Object
*obj
, const char *value
, Error
**errp
)
337 MachineState
*ms
= MACHINE(obj
);
339 g_free(ms
->dt_compatible
);
340 ms
->dt_compatible
= g_strdup(value
);
343 static bool machine_get_dump_guest_core(Object
*obj
, Error
**errp
)
345 MachineState
*ms
= MACHINE(obj
);
347 return ms
->dump_guest_core
;
350 static void machine_set_dump_guest_core(Object
*obj
, bool value
, Error
**errp
)
352 MachineState
*ms
= MACHINE(obj
);
354 ms
->dump_guest_core
= value
;
357 static bool machine_get_mem_merge(Object
*obj
, Error
**errp
)
359 MachineState
*ms
= MACHINE(obj
);
361 return ms
->mem_merge
;
364 static void machine_set_mem_merge(Object
*obj
, bool value
, Error
**errp
)
366 MachineState
*ms
= MACHINE(obj
);
368 ms
->mem_merge
= value
;
371 static bool machine_get_usb(Object
*obj
, Error
**errp
)
373 MachineState
*ms
= MACHINE(obj
);
378 static void machine_set_usb(Object
*obj
, bool value
, Error
**errp
)
380 MachineState
*ms
= MACHINE(obj
);
383 ms
->usb_disabled
= !value
;
386 static bool machine_get_graphics(Object
*obj
, Error
**errp
)
388 MachineState
*ms
= MACHINE(obj
);
390 return ms
->enable_graphics
;
393 static void machine_set_graphics(Object
*obj
, bool value
, Error
**errp
)
395 MachineState
*ms
= MACHINE(obj
);
397 ms
->enable_graphics
= value
;
400 static char *machine_get_firmware(Object
*obj
, Error
**errp
)
402 MachineState
*ms
= MACHINE(obj
);
404 return g_strdup(ms
->firmware
);
407 static void machine_set_firmware(Object
*obj
, const char *value
, Error
**errp
)
409 MachineState
*ms
= MACHINE(obj
);
411 g_free(ms
->firmware
);
412 ms
->firmware
= g_strdup(value
);
415 static void machine_set_suppress_vmdesc(Object
*obj
, bool value
, Error
**errp
)
417 MachineState
*ms
= MACHINE(obj
);
419 ms
->suppress_vmdesc
= value
;
422 static bool machine_get_suppress_vmdesc(Object
*obj
, Error
**errp
)
424 MachineState
*ms
= MACHINE(obj
);
426 return ms
->suppress_vmdesc
;
429 static char *machine_get_memory_encryption(Object
*obj
, Error
**errp
)
431 MachineState
*ms
= MACHINE(obj
);
434 return g_strdup(object_get_canonical_path_component(OBJECT(ms
->cgs
)));
440 static void machine_set_memory_encryption(Object
*obj
, const char *value
,
444 object_resolve_path_component(object_get_objects_root(), value
);
447 error_setg(errp
, "No such memory encryption object '%s'", value
);
451 object_property_set_link(obj
, "confidential-guest-support", cgs
, errp
);
454 static void machine_check_confidential_guest_support(const Object
*obj
,
460 * So far the only constraint is that the target has the
461 * TYPE_CONFIDENTIAL_GUEST_SUPPORT interface, and that's checked
466 static bool machine_get_nvdimm(Object
*obj
, Error
**errp
)
468 MachineState
*ms
= MACHINE(obj
);
470 return ms
->nvdimms_state
->is_enabled
;
473 static void machine_set_nvdimm(Object
*obj
, bool value
, Error
**errp
)
475 MachineState
*ms
= MACHINE(obj
);
477 ms
->nvdimms_state
->is_enabled
= value
;
480 static bool machine_get_hmat(Object
*obj
, Error
**errp
)
482 MachineState
*ms
= MACHINE(obj
);
484 return ms
->numa_state
->hmat_enabled
;
487 static void machine_set_hmat(Object
*obj
, bool value
, Error
**errp
)
489 MachineState
*ms
= MACHINE(obj
);
491 ms
->numa_state
->hmat_enabled
= value
;
494 static char *machine_get_nvdimm_persistence(Object
*obj
, Error
**errp
)
496 MachineState
*ms
= MACHINE(obj
);
498 return g_strdup(ms
->nvdimms_state
->persistence_string
);
501 static void machine_set_nvdimm_persistence(Object
*obj
, const char *value
,
504 MachineState
*ms
= MACHINE(obj
);
505 NVDIMMState
*nvdimms_state
= ms
->nvdimms_state
;
507 if (strcmp(value
, "cpu") == 0) {
508 nvdimms_state
->persistence
= 3;
509 } else if (strcmp(value
, "mem-ctrl") == 0) {
510 nvdimms_state
->persistence
= 2;
512 error_setg(errp
, "-machine nvdimm-persistence=%s: unsupported option",
517 g_free(nvdimms_state
->persistence_string
);
518 nvdimms_state
->persistence_string
= g_strdup(value
);
521 void machine_class_allow_dynamic_sysbus_dev(MachineClass
*mc
, const char *type
)
523 QAPI_LIST_PREPEND(mc
->allowed_dynamic_sysbus_devices
, g_strdup(type
));
526 static void validate_sysbus_device(SysBusDevice
*sbdev
, void *opaque
)
528 MachineState
*machine
= opaque
;
529 MachineClass
*mc
= MACHINE_GET_CLASS(machine
);
530 bool allowed
= false;
533 for (wl
= mc
->allowed_dynamic_sysbus_devices
;
536 allowed
|= !!object_dynamic_cast(OBJECT(sbdev
), wl
->value
);
540 error_report("Option '-device %s' cannot be handled by this machine",
541 object_class_get_name(object_get_class(OBJECT(sbdev
))));
546 static char *machine_get_memdev(Object
*obj
, Error
**errp
)
548 MachineState
*ms
= MACHINE(obj
);
550 return g_strdup(ms
->ram_memdev_id
);
553 static void machine_set_memdev(Object
*obj
, const char *value
, Error
**errp
)
555 MachineState
*ms
= MACHINE(obj
);
557 g_free(ms
->ram_memdev_id
);
558 ms
->ram_memdev_id
= g_strdup(value
);
562 static void machine_init_notify(Notifier
*notifier
, void *data
)
564 MachineState
*machine
= MACHINE(qdev_get_machine());
567 * Loop through all dynamically created sysbus devices and check if they are
568 * all allowed. If a device is not allowed, error out.
570 foreach_dynamic_sysbus_device(validate_sysbus_device
, machine
);
573 HotpluggableCPUList
*machine_query_hotpluggable_cpus(MachineState
*machine
)
576 HotpluggableCPUList
*head
= NULL
;
577 MachineClass
*mc
= MACHINE_GET_CLASS(machine
);
579 /* force board to initialize possible_cpus if it hasn't been done yet */
580 mc
->possible_cpu_arch_ids(machine
);
582 for (i
= 0; i
< machine
->possible_cpus
->len
; i
++) {
584 HotpluggableCPU
*cpu_item
= g_new0(typeof(*cpu_item
), 1);
586 cpu_item
->type
= g_strdup(machine
->possible_cpus
->cpus
[i
].type
);
587 cpu_item
->vcpus_count
= machine
->possible_cpus
->cpus
[i
].vcpus_count
;
588 cpu_item
->props
= g_memdup(&machine
->possible_cpus
->cpus
[i
].props
,
589 sizeof(*cpu_item
->props
));
591 cpu
= machine
->possible_cpus
->cpus
[i
].cpu
;
593 cpu_item
->has_qom_path
= true;
594 cpu_item
->qom_path
= object_get_canonical_path(cpu
);
596 QAPI_LIST_PREPEND(head
, cpu_item
);
602 * machine_set_cpu_numa_node:
603 * @machine: machine object to modify
604 * @props: specifies which cpu objects to assign to
605 * numa node specified by @props.node_id
606 * @errp: if an error occurs, a pointer to an area to store the error
608 * Associate NUMA node specified by @props.node_id with cpu slots that
609 * match socket/core/thread-ids specified by @props. It's recommended to use
610 * query-hotpluggable-cpus.props values to specify affected cpu slots,
611 * which would lead to exact 1:1 mapping of cpu slots to NUMA node.
613 * However for CLI convenience it's possible to pass in subset of properties,
614 * which would affect all cpu slots that match it.
616 * -smp 4,cores=2,sockets=2 -numa node,nodeid=0 -numa node,nodeid=1 \
617 * -numa cpu,node-id=0,socket_id=0 \
618 * -numa cpu,node-id=1,socket_id=1
619 * will assign all child cores of socket 0 to node 0 and
620 * of socket 1 to node 1.
622 * On attempt of reassigning (already assigned) cpu slot to another NUMA node,
624 * Empty subset is disallowed and function will return with error in this case.
626 void machine_set_cpu_numa_node(MachineState
*machine
,
627 const CpuInstanceProperties
*props
, Error
**errp
)
629 MachineClass
*mc
= MACHINE_GET_CLASS(machine
);
630 NodeInfo
*numa_info
= machine
->numa_state
->nodes
;
634 if (!mc
->possible_cpu_arch_ids
) {
635 error_setg(errp
, "mapping of CPUs to NUMA node is not supported");
639 /* disabling node mapping is not supported, forbid it */
640 assert(props
->has_node_id
);
642 /* force board to initialize possible_cpus if it hasn't been done yet */
643 mc
->possible_cpu_arch_ids(machine
);
645 for (i
= 0; i
< machine
->possible_cpus
->len
; i
++) {
646 CPUArchId
*slot
= &machine
->possible_cpus
->cpus
[i
];
648 /* reject unsupported by board properties */
649 if (props
->has_thread_id
&& !slot
->props
.has_thread_id
) {
650 error_setg(errp
, "thread-id is not supported");
654 if (props
->has_core_id
&& !slot
->props
.has_core_id
) {
655 error_setg(errp
, "core-id is not supported");
659 if (props
->has_socket_id
&& !slot
->props
.has_socket_id
) {
660 error_setg(errp
, "socket-id is not supported");
664 if (props
->has_die_id
&& !slot
->props
.has_die_id
) {
665 error_setg(errp
, "die-id is not supported");
669 /* skip slots with explicit mismatch */
670 if (props
->has_thread_id
&& props
->thread_id
!= slot
->props
.thread_id
) {
674 if (props
->has_core_id
&& props
->core_id
!= slot
->props
.core_id
) {
678 if (props
->has_die_id
&& props
->die_id
!= slot
->props
.die_id
) {
682 if (props
->has_socket_id
&& props
->socket_id
!= slot
->props
.socket_id
) {
686 /* reject assignment if slot is already assigned, for compatibility
687 * of legacy cpu_index mapping with SPAPR core based mapping do not
688 * error out if cpu thread and matched core have the same node-id */
689 if (slot
->props
.has_node_id
&&
690 slot
->props
.node_id
!= props
->node_id
) {
691 error_setg(errp
, "CPU is already assigned to node-id: %" PRId64
,
692 slot
->props
.node_id
);
696 /* assign slot to node as it's matched '-numa cpu' key */
698 slot
->props
.node_id
= props
->node_id
;
699 slot
->props
.has_node_id
= props
->has_node_id
;
701 if (machine
->numa_state
->hmat_enabled
) {
702 if ((numa_info
[props
->node_id
].initiator
< MAX_NODES
) &&
703 (props
->node_id
!= numa_info
[props
->node_id
].initiator
)) {
704 error_setg(errp
, "The initiator of CPU NUMA node %" PRId64
705 " should be itself", props
->node_id
);
708 numa_info
[props
->node_id
].has_cpu
= true;
709 numa_info
[props
->node_id
].initiator
= props
->node_id
;
714 error_setg(errp
, "no match found");
718 static void smp_parse(MachineState
*ms
, QemuOpts
*opts
)
721 unsigned cpus
= qemu_opt_get_number(opts
, "cpus", 0);
722 unsigned sockets
= qemu_opt_get_number(opts
, "sockets", 0);
723 unsigned cores
= qemu_opt_get_number(opts
, "cores", 0);
724 unsigned threads
= qemu_opt_get_number(opts
, "threads", 0);
726 /* compute missing values, prefer sockets over cores over threads */
727 if (cpus
== 0 || sockets
== 0) {
728 cores
= cores
> 0 ? cores
: 1;
729 threads
= threads
> 0 ? threads
: 1;
731 sockets
= sockets
> 0 ? sockets
: 1;
732 cpus
= cores
* threads
* sockets
;
735 qemu_opt_get_number(opts
, "maxcpus", cpus
);
736 sockets
= ms
->smp
.max_cpus
/ (cores
* threads
);
738 } else if (cores
== 0) {
739 threads
= threads
> 0 ? threads
: 1;
740 cores
= cpus
/ (sockets
* threads
);
741 cores
= cores
> 0 ? cores
: 1;
742 } else if (threads
== 0) {
743 threads
= cpus
/ (cores
* sockets
);
744 threads
= threads
> 0 ? threads
: 1;
745 } else if (sockets
* cores
* threads
< cpus
) {
746 error_report("cpu topology: "
747 "sockets (%u) * cores (%u) * threads (%u) < "
749 sockets
, cores
, threads
, cpus
);
754 qemu_opt_get_number(opts
, "maxcpus", cpus
);
756 if (ms
->smp
.max_cpus
< cpus
) {
757 error_report("maxcpus must be equal to or greater than smp");
761 if (sockets
* cores
* threads
!= ms
->smp
.max_cpus
) {
762 error_report("Invalid CPU topology: "
763 "sockets (%u) * cores (%u) * threads (%u) "
765 sockets
, cores
, threads
,
771 ms
->smp
.cores
= cores
;
772 ms
->smp
.threads
= threads
;
773 ms
->smp
.sockets
= sockets
;
776 if (ms
->smp
.cpus
> 1) {
777 Error
*blocker
= NULL
;
778 error_setg(&blocker
, QERR_REPLAY_NOT_SUPPORTED
, "smp");
779 replay_add_blocker(blocker
);
783 static void machine_class_init(ObjectClass
*oc
, void *data
)
785 MachineClass
*mc
= MACHINE_CLASS(oc
);
787 /* Default 128 MB as guest ram size */
788 mc
->default_ram_size
= 128 * MiB
;
789 mc
->rom_file_has_mr
= true;
790 mc
->smp_parse
= smp_parse
;
792 /* numa node memory size aligned on 8MB by default.
793 * On Linux, each node's border has to be 8MB aligned
795 mc
->numa_mem_align_shift
= 23;
797 object_class_property_add_str(oc
, "kernel",
798 machine_get_kernel
, machine_set_kernel
);
799 object_class_property_set_description(oc
, "kernel",
800 "Linux kernel image file");
802 object_class_property_add_str(oc
, "initrd",
803 machine_get_initrd
, machine_set_initrd
);
804 object_class_property_set_description(oc
, "initrd",
805 "Linux initial ramdisk file");
807 object_class_property_add_str(oc
, "append",
808 machine_get_append
, machine_set_append
);
809 object_class_property_set_description(oc
, "append",
810 "Linux kernel command line");
812 object_class_property_add_str(oc
, "dtb",
813 machine_get_dtb
, machine_set_dtb
);
814 object_class_property_set_description(oc
, "dtb",
815 "Linux kernel device tree file");
817 object_class_property_add_str(oc
, "dumpdtb",
818 machine_get_dumpdtb
, machine_set_dumpdtb
);
819 object_class_property_set_description(oc
, "dumpdtb",
820 "Dump current dtb to a file and quit");
822 object_class_property_add(oc
, "phandle-start", "int",
823 machine_get_phandle_start
, machine_set_phandle_start
,
825 object_class_property_set_description(oc
, "phandle-start",
826 "The first phandle ID we may generate dynamically");
828 object_class_property_add_str(oc
, "dt-compatible",
829 machine_get_dt_compatible
, machine_set_dt_compatible
);
830 object_class_property_set_description(oc
, "dt-compatible",
831 "Overrides the \"compatible\" property of the dt root node");
833 object_class_property_add_bool(oc
, "dump-guest-core",
834 machine_get_dump_guest_core
, machine_set_dump_guest_core
);
835 object_class_property_set_description(oc
, "dump-guest-core",
836 "Include guest memory in a core dump");
838 object_class_property_add_bool(oc
, "mem-merge",
839 machine_get_mem_merge
, machine_set_mem_merge
);
840 object_class_property_set_description(oc
, "mem-merge",
841 "Enable/disable memory merge support");
843 object_class_property_add_bool(oc
, "usb",
844 machine_get_usb
, machine_set_usb
);
845 object_class_property_set_description(oc
, "usb",
846 "Set on/off to enable/disable usb");
848 object_class_property_add_bool(oc
, "graphics",
849 machine_get_graphics
, machine_set_graphics
);
850 object_class_property_set_description(oc
, "graphics",
851 "Set on/off to enable/disable graphics emulation");
853 object_class_property_add_str(oc
, "firmware",
854 machine_get_firmware
, machine_set_firmware
);
855 object_class_property_set_description(oc
, "firmware",
858 object_class_property_add_bool(oc
, "suppress-vmdesc",
859 machine_get_suppress_vmdesc
, machine_set_suppress_vmdesc
);
860 object_class_property_set_description(oc
, "suppress-vmdesc",
861 "Set on to disable self-describing migration");
863 object_class_property_add_link(oc
, "confidential-guest-support",
864 TYPE_CONFIDENTIAL_GUEST_SUPPORT
,
865 offsetof(MachineState
, cgs
),
866 machine_check_confidential_guest_support
,
867 OBJ_PROP_LINK_STRONG
);
868 object_class_property_set_description(oc
, "confidential-guest-support",
869 "Set confidential guest scheme to support");
871 /* For compatibility */
872 object_class_property_add_str(oc
, "memory-encryption",
873 machine_get_memory_encryption
, machine_set_memory_encryption
);
874 object_class_property_set_description(oc
, "memory-encryption",
875 "Set memory encryption object to use");
877 object_class_property_add_str(oc
, "memory-backend",
878 machine_get_memdev
, machine_set_memdev
);
879 object_class_property_set_description(oc
, "memory-backend",
881 "Valid value is ID of hostmem based backend");
884 static void machine_class_base_init(ObjectClass
*oc
, void *data
)
886 MachineClass
*mc
= MACHINE_CLASS(oc
);
887 mc
->max_cpus
= mc
->max_cpus
?: 1;
888 mc
->min_cpus
= mc
->min_cpus
?: 1;
889 mc
->default_cpus
= mc
->default_cpus
?: 1;
891 if (!object_class_is_abstract(oc
)) {
892 const char *cname
= object_class_get_name(oc
);
893 assert(g_str_has_suffix(cname
, TYPE_MACHINE_SUFFIX
));
894 mc
->name
= g_strndup(cname
,
895 strlen(cname
) - strlen(TYPE_MACHINE_SUFFIX
));
896 mc
->compat_props
= g_ptr_array_new();
900 static void machine_initfn(Object
*obj
)
902 MachineState
*ms
= MACHINE(obj
);
903 MachineClass
*mc
= MACHINE_GET_CLASS(obj
);
905 container_get(obj
, "/peripheral");
906 container_get(obj
, "/peripheral-anon");
908 ms
->dump_guest_core
= true;
909 ms
->mem_merge
= true;
910 ms
->enable_graphics
= true;
911 ms
->kernel_cmdline
= g_strdup("");
913 if (mc
->nvdimm_supported
) {
914 Object
*obj
= OBJECT(ms
);
916 ms
->nvdimms_state
= g_new0(NVDIMMState
, 1);
917 object_property_add_bool(obj
, "nvdimm",
918 machine_get_nvdimm
, machine_set_nvdimm
);
919 object_property_set_description(obj
, "nvdimm",
920 "Set on/off to enable/disable "
921 "NVDIMM instantiation");
923 object_property_add_str(obj
, "nvdimm-persistence",
924 machine_get_nvdimm_persistence
,
925 machine_set_nvdimm_persistence
);
926 object_property_set_description(obj
, "nvdimm-persistence",
927 "Set NVDIMM persistence"
928 "Valid values are cpu, mem-ctrl");
931 if (mc
->cpu_index_to_instance_props
&& mc
->get_default_cpu_node_id
) {
932 ms
->numa_state
= g_new0(NumaState
, 1);
933 object_property_add_bool(obj
, "hmat",
934 machine_get_hmat
, machine_set_hmat
);
935 object_property_set_description(obj
, "hmat",
936 "Set on/off to enable/disable "
937 "ACPI Heterogeneous Memory Attribute "
941 /* Register notifier when init is done for sysbus sanity checks */
942 ms
->sysbus_notifier
.notify
= machine_init_notify
;
943 qemu_add_machine_init_done_notifier(&ms
->sysbus_notifier
);
945 /* default to mc->default_cpus */
946 ms
->smp
.cpus
= mc
->default_cpus
;
947 ms
->smp
.max_cpus
= mc
->default_cpus
;
953 static void machine_finalize(Object
*obj
)
955 MachineState
*ms
= MACHINE(obj
);
957 g_free(ms
->kernel_filename
);
958 g_free(ms
->initrd_filename
);
959 g_free(ms
->kernel_cmdline
);
962 g_free(ms
->dt_compatible
);
963 g_free(ms
->firmware
);
964 g_free(ms
->device_memory
);
965 g_free(ms
->nvdimms_state
);
966 g_free(ms
->numa_state
);
969 bool machine_usb(MachineState
*machine
)
974 int machine_phandle_start(MachineState
*machine
)
976 return machine
->phandle_start
;
979 bool machine_dump_guest_core(MachineState
*machine
)
981 return machine
->dump_guest_core
;
984 bool machine_mem_merge(MachineState
*machine
)
986 return machine
->mem_merge
;
989 static char *cpu_slot_to_string(const CPUArchId
*cpu
)
991 GString
*s
= g_string_new(NULL
);
992 if (cpu
->props
.has_socket_id
) {
993 g_string_append_printf(s
, "socket-id: %"PRId64
, cpu
->props
.socket_id
);
995 if (cpu
->props
.has_die_id
) {
996 g_string_append_printf(s
, "die-id: %"PRId64
, cpu
->props
.die_id
);
998 if (cpu
->props
.has_core_id
) {
1000 g_string_append_printf(s
, ", ");
1002 g_string_append_printf(s
, "core-id: %"PRId64
, cpu
->props
.core_id
);
1004 if (cpu
->props
.has_thread_id
) {
1006 g_string_append_printf(s
, ", ");
1008 g_string_append_printf(s
, "thread-id: %"PRId64
, cpu
->props
.thread_id
);
1010 return g_string_free(s
, false);
1013 static void numa_validate_initiator(NumaState
*numa_state
)
1016 NodeInfo
*numa_info
= numa_state
->nodes
;
1018 for (i
= 0; i
< numa_state
->num_nodes
; i
++) {
1019 if (numa_info
[i
].initiator
== MAX_NODES
) {
1020 error_report("The initiator of NUMA node %d is missing, use "
1021 "'-numa node,initiator' option to declare it", i
);
1025 if (!numa_info
[numa_info
[i
].initiator
].present
) {
1026 error_report("NUMA node %" PRIu16
" is missing, use "
1027 "'-numa node' option to declare it first",
1028 numa_info
[i
].initiator
);
1032 if (!numa_info
[numa_info
[i
].initiator
].has_cpu
) {
1033 error_report("The initiator of NUMA node %d is invalid", i
);
1039 static void machine_numa_finish_cpu_init(MachineState
*machine
)
1042 bool default_mapping
;
1043 GString
*s
= g_string_new(NULL
);
1044 MachineClass
*mc
= MACHINE_GET_CLASS(machine
);
1045 const CPUArchIdList
*possible_cpus
= mc
->possible_cpu_arch_ids(machine
);
1047 assert(machine
->numa_state
->num_nodes
);
1048 for (i
= 0; i
< possible_cpus
->len
; i
++) {
1049 if (possible_cpus
->cpus
[i
].props
.has_node_id
) {
1053 default_mapping
= (i
== possible_cpus
->len
);
1055 for (i
= 0; i
< possible_cpus
->len
; i
++) {
1056 const CPUArchId
*cpu_slot
= &possible_cpus
->cpus
[i
];
1058 if (!cpu_slot
->props
.has_node_id
) {
1059 /* fetch default mapping from board and enable it */
1060 CpuInstanceProperties props
= cpu_slot
->props
;
1062 props
.node_id
= mc
->get_default_cpu_node_id(machine
, i
);
1063 if (!default_mapping
) {
1064 /* record slots with not set mapping,
1065 * TODO: make it hard error in future */
1066 char *cpu_str
= cpu_slot_to_string(cpu_slot
);
1067 g_string_append_printf(s
, "%sCPU %d [%s]",
1068 s
->len
? ", " : "", i
, cpu_str
);
1071 /* non mapped cpus used to fallback to node 0 */
1075 props
.has_node_id
= true;
1076 machine_set_cpu_numa_node(machine
, &props
, &error_fatal
);
1080 if (machine
->numa_state
->hmat_enabled
) {
1081 numa_validate_initiator(machine
->numa_state
);
1084 if (s
->len
&& !qtest_enabled()) {
1085 warn_report("CPU(s) not present in any NUMA nodes: %s",
1087 warn_report("All CPU(s) up to maxcpus should be described "
1088 "in NUMA config, ability to start up with partial NUMA "
1089 "mappings is obsoleted and will be removed in future");
1091 g_string_free(s
, true);
1094 MemoryRegion
*machine_consume_memdev(MachineState
*machine
,
1095 HostMemoryBackend
*backend
)
1097 MemoryRegion
*ret
= host_memory_backend_get_memory(backend
);
1099 if (memory_region_is_mapped(ret
)) {
1100 error_report("memory backend %s can't be used multiple times.",
1101 object_get_canonical_path_component(OBJECT(backend
)));
1104 host_memory_backend_set_mapped(backend
, true);
1105 vmstate_register_ram_global(ret
);
1109 bool machine_smp_parse(MachineState
*ms
, QemuOpts
*opts
, Error
**errp
)
1111 MachineClass
*mc
= MACHINE_GET_CLASS(ms
);
1113 mc
->smp_parse(ms
, opts
);
1115 /* sanity-check smp_cpus and max_cpus against mc */
1116 if (ms
->smp
.cpus
< mc
->min_cpus
) {
1117 error_setg(errp
, "Invalid SMP CPUs %d. The min CPUs "
1118 "supported by machine '%s' is %d",
1120 mc
->name
, mc
->min_cpus
);
1122 } else if (ms
->smp
.max_cpus
> mc
->max_cpus
) {
1123 error_setg(errp
, "Invalid SMP CPUs %d. The max CPUs "
1124 "supported by machine '%s' is %d",
1125 current_machine
->smp
.max_cpus
,
1126 mc
->name
, mc
->max_cpus
);
1132 void machine_run_board_init(MachineState
*machine
)
1134 MachineClass
*machine_class
= MACHINE_GET_CLASS(machine
);
1135 ObjectClass
*oc
= object_class_by_name(machine
->cpu_type
);
1138 /* This checkpoint is required by replay to separate prior clock
1139 reading from the other reads, because timer polling functions query
1140 clock values from the log. */
1141 replay_checkpoint(CHECKPOINT_INIT
);
1143 if (machine
->ram_memdev_id
) {
1145 o
= object_resolve_path_type(machine
->ram_memdev_id
,
1146 TYPE_MEMORY_BACKEND
, NULL
);
1147 machine
->ram
= machine_consume_memdev(machine
, MEMORY_BACKEND(o
));
1150 if (machine
->numa_state
) {
1151 numa_complete_configuration(machine
);
1152 if (machine
->numa_state
->num_nodes
) {
1153 machine_numa_finish_cpu_init(machine
);
1157 /* If the machine supports the valid_cpu_types check and the user
1158 * specified a CPU with -cpu check here that the user CPU is supported.
1160 if (machine_class
->valid_cpu_types
&& machine
->cpu_type
) {
1163 for (i
= 0; machine_class
->valid_cpu_types
[i
]; i
++) {
1164 if (object_class_dynamic_cast(oc
,
1165 machine_class
->valid_cpu_types
[i
])) {
1166 /* The user specificed CPU is in the valid field, we are
1173 if (!machine_class
->valid_cpu_types
[i
]) {
1174 /* The user specified CPU is not valid */
1175 error_report("Invalid CPU type: %s", machine
->cpu_type
);
1176 error_printf("The valid types are: %s",
1177 machine_class
->valid_cpu_types
[0]);
1178 for (i
= 1; machine_class
->valid_cpu_types
[i
]; i
++) {
1179 error_printf(", %s", machine_class
->valid_cpu_types
[i
]);
1187 /* Check if CPU type is deprecated and warn if so */
1189 if (cc
&& cc
->deprecation_note
) {
1190 warn_report("CPU model %s is deprecated -- %s", machine
->cpu_type
,
1191 cc
->deprecation_note
);
1196 * With confidential guests, the host can't see the real
1197 * contents of RAM, so there's no point in it trying to merge
1200 machine_set_mem_merge(OBJECT(machine
), false, &error_abort
);
1203 * Virtio devices can't count on directly accessing guest
1204 * memory, so they need iommu_platform=on to use normal DMA
1205 * mechanisms. That requires also disabling legacy virtio
1206 * support for those virtio pci devices which allow it.
1208 object_register_sugar_prop(TYPE_VIRTIO_PCI
, "disable-legacy",
1210 object_register_sugar_prop(TYPE_VIRTIO_DEVICE
, "iommu_platform",
1214 machine_class
->init(machine
);
1215 phase_advance(PHASE_MACHINE_INITIALIZED
);
1218 static NotifierList machine_init_done_notifiers
=
1219 NOTIFIER_LIST_INITIALIZER(machine_init_done_notifiers
);
1221 void qemu_add_machine_init_done_notifier(Notifier
*notify
)
1223 notifier_list_add(&machine_init_done_notifiers
, notify
);
1224 if (phase_check(PHASE_MACHINE_READY
)) {
1225 notify
->notify(notify
, NULL
);
1229 void qemu_remove_machine_init_done_notifier(Notifier
*notify
)
1231 notifier_remove(notify
);
1234 void qdev_machine_creation_done(void)
1236 cpu_synchronize_all_post_init();
1238 if (current_machine
->boot_once
) {
1239 qemu_boot_set(current_machine
->boot_once
, &error_fatal
);
1240 qemu_register_reset(restore_boot_order
, g_strdup(current_machine
->boot_order
));
1244 * ok, initial machine setup is done, starting from now we can
1245 * only create hotpluggable devices
1247 phase_advance(PHASE_MACHINE_READY
);
1248 qdev_assert_realized_properly();
1250 /* TODO: once all bus devices are qdevified, this should be done
1251 * when bus is created by qdev.c */
1253 * TODO: If we had a main 'reset container' that the whole system
1254 * lived in, we could reset that using the multi-phase reset
1255 * APIs. For the moment, we just reset the sysbus, which will cause
1256 * all devices hanging off it (and all their child buses, recursively)
1257 * to be reset. Note that this will *not* reset any Device objects
1258 * which are not attached to some part of the qbus tree!
1260 qemu_register_reset(resettable_cold_reset_fn
, sysbus_get_default());
1262 notifier_list_notify(&machine_init_done_notifiers
, NULL
);
1264 if (rom_check_and_register_reset() != 0) {
1270 /* This checkpoint is required by replay to separate prior clock
1271 reading from the other reads, because timer polling functions query
1272 clock values from the log. */
1273 replay_checkpoint(CHECKPOINT_RESET
);
1274 qemu_system_reset(SHUTDOWN_CAUSE_NONE
);
1275 register_global_state();
1278 static const TypeInfo machine_info
= {
1279 .name
= TYPE_MACHINE
,
1280 .parent
= TYPE_OBJECT
,
1282 .class_size
= sizeof(MachineClass
),
1283 .class_init
= machine_class_init
,
1284 .class_base_init
= machine_class_base_init
,
1285 .instance_size
= sizeof(MachineState
),
1286 .instance_init
= machine_initfn
,
1287 .instance_finalize
= machine_finalize
,
1290 static void machine_register_types(void)
1292 type_register_static(&machine_info
);
1295 type_init(machine_register_types
)