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_0
[] = {
41 { "gpex-pcihost", "allow-unmapped-accesses", "false" },
42 { "i8042", "extended-state", "false"},
43 { "nvme-ns", "eui64-default", "off"},
45 const size_t hw_compat_6_0_len
= G_N_ELEMENTS(hw_compat_6_0
);
47 GlobalProperty hw_compat_5_2
[] = {
48 { "ICH9-LPC", "smm-compat", "on"},
49 { "PIIX4_PM", "smm-compat", "on"},
50 { "virtio-blk-device", "report-discard-granularity", "off" },
51 { "virtio-net-pci", "vectors", "3"},
53 const size_t hw_compat_5_2_len
= G_N_ELEMENTS(hw_compat_5_2
);
55 GlobalProperty hw_compat_5_1
[] = {
56 { "vhost-scsi", "num_queues", "1"},
57 { "vhost-user-blk", "num-queues", "1"},
58 { "vhost-user-scsi", "num_queues", "1"},
59 { "virtio-blk-device", "num-queues", "1"},
60 { "virtio-scsi-device", "num_queues", "1"},
61 { "nvme", "use-intel-id", "on"},
62 { "pvpanic", "events", "1"}, /* PVPANIC_PANICKED */
63 { "pl011", "migrate-clk", "off" },
64 { "virtio-pci", "x-ats-page-aligned", "off"},
66 const size_t hw_compat_5_1_len
= G_N_ELEMENTS(hw_compat_5_1
);
68 GlobalProperty hw_compat_5_0
[] = {
69 { "pci-host-bridge", "x-config-reg-migration-enabled", "off" },
70 { "virtio-balloon-device", "page-poison", "false" },
71 { "vmport", "x-read-set-eax", "off" },
72 { "vmport", "x-signal-unsupported-cmd", "off" },
73 { "vmport", "x-report-vmx-type", "off" },
74 { "vmport", "x-cmds-v2", "off" },
75 { "virtio-device", "x-disable-legacy-check", "true" },
77 const size_t hw_compat_5_0_len
= G_N_ELEMENTS(hw_compat_5_0
);
79 GlobalProperty hw_compat_4_2
[] = {
80 { "virtio-blk-device", "queue-size", "128"},
81 { "virtio-scsi-device", "virtqueue_size", "128"},
82 { "virtio-blk-device", "x-enable-wce-if-config-wce", "off" },
83 { "virtio-blk-device", "seg-max-adjust", "off"},
84 { "virtio-scsi-device", "seg_max_adjust", "off"},
85 { "vhost-blk-device", "seg_max_adjust", "off"},
86 { "usb-host", "suppress-remote-wake", "off" },
87 { "usb-redir", "suppress-remote-wake", "off" },
88 { "qxl", "revision", "4" },
89 { "qxl-vga", "revision", "4" },
90 { "fw_cfg", "acpi-mr-restore", "false" },
91 { "virtio-device", "use-disabled-flag", "false" },
93 const size_t hw_compat_4_2_len
= G_N_ELEMENTS(hw_compat_4_2
);
95 GlobalProperty hw_compat_4_1
[] = {
96 { "virtio-pci", "x-pcie-flr-init", "off" },
98 const size_t hw_compat_4_1_len
= G_N_ELEMENTS(hw_compat_4_1
);
100 GlobalProperty hw_compat_4_0
[] = {
101 { "VGA", "edid", "false" },
102 { "secondary-vga", "edid", "false" },
103 { "bochs-display", "edid", "false" },
104 { "virtio-vga", "edid", "false" },
105 { "virtio-gpu-device", "edid", "false" },
106 { "virtio-device", "use-started", "false" },
107 { "virtio-balloon-device", "qemu-4-0-config-size", "true" },
108 { "pl031", "migrate-tick-offset", "false" },
110 const size_t hw_compat_4_0_len
= G_N_ELEMENTS(hw_compat_4_0
);
112 GlobalProperty hw_compat_3_1
[] = {
113 { "pcie-root-port", "x-speed", "2_5" },
114 { "pcie-root-port", "x-width", "1" },
115 { "memory-backend-file", "x-use-canonical-path-for-ramblock-id", "true" },
116 { "memory-backend-memfd", "x-use-canonical-path-for-ramblock-id", "true" },
117 { "tpm-crb", "ppi", "false" },
118 { "tpm-tis", "ppi", "false" },
119 { "usb-kbd", "serial", "42" },
120 { "usb-mouse", "serial", "42" },
121 { "usb-tablet", "serial", "42" },
122 { "virtio-blk-device", "discard", "false" },
123 { "virtio-blk-device", "write-zeroes", "false" },
124 { "virtio-balloon-device", "qemu-4-0-config-size", "false" },
125 { "pcie-root-port-base", "disable-acs", "true" }, /* Added in 4.1 */
127 const size_t hw_compat_3_1_len
= G_N_ELEMENTS(hw_compat_3_1
);
129 GlobalProperty hw_compat_3_0
[] = {};
130 const size_t hw_compat_3_0_len
= G_N_ELEMENTS(hw_compat_3_0
);
132 GlobalProperty hw_compat_2_12
[] = {
133 { "migration", "decompress-error-check", "off" },
134 { "hda-audio", "use-timer", "false" },
135 { "cirrus-vga", "global-vmstate", "true" },
136 { "VGA", "global-vmstate", "true" },
137 { "vmware-svga", "global-vmstate", "true" },
138 { "qxl-vga", "global-vmstate", "true" },
140 const size_t hw_compat_2_12_len
= G_N_ELEMENTS(hw_compat_2_12
);
142 GlobalProperty hw_compat_2_11
[] = {
143 { "hpet", "hpet-offset-saved", "false" },
144 { "virtio-blk-pci", "vectors", "2" },
145 { "vhost-user-blk-pci", "vectors", "2" },
146 { "e1000", "migrate_tso_props", "off" },
148 const size_t hw_compat_2_11_len
= G_N_ELEMENTS(hw_compat_2_11
);
150 GlobalProperty hw_compat_2_10
[] = {
151 { "virtio-mouse-device", "wheel-axis", "false" },
152 { "virtio-tablet-device", "wheel-axis", "false" },
154 const size_t hw_compat_2_10_len
= G_N_ELEMENTS(hw_compat_2_10
);
156 GlobalProperty hw_compat_2_9
[] = {
157 { "pci-bridge", "shpc", "off" },
158 { "intel-iommu", "pt", "off" },
159 { "virtio-net-device", "x-mtu-bypass-backend", "off" },
160 { "pcie-root-port", "x-migrate-msix", "false" },
162 const size_t hw_compat_2_9_len
= G_N_ELEMENTS(hw_compat_2_9
);
164 GlobalProperty hw_compat_2_8
[] = {
165 { "fw_cfg_mem", "x-file-slots", "0x10" },
166 { "fw_cfg_io", "x-file-slots", "0x10" },
167 { "pflash_cfi01", "old-multiple-chip-handling", "on" },
168 { "pci-bridge", "shpc", "on" },
169 { TYPE_PCI_DEVICE
, "x-pcie-extcap-init", "off" },
170 { "virtio-pci", "x-pcie-deverr-init", "off" },
171 { "virtio-pci", "x-pcie-lnkctl-init", "off" },
172 { "virtio-pci", "x-pcie-pm-init", "off" },
173 { "cirrus-vga", "vgamem_mb", "8" },
174 { "isa-cirrus-vga", "vgamem_mb", "8" },
176 const size_t hw_compat_2_8_len
= G_N_ELEMENTS(hw_compat_2_8
);
178 GlobalProperty hw_compat_2_7
[] = {
179 { "virtio-pci", "page-per-vq", "on" },
180 { "virtio-serial-device", "emergency-write", "off" },
181 { "ioapic", "version", "0x11" },
182 { "intel-iommu", "x-buggy-eim", "true" },
183 { "virtio-pci", "x-ignore-backend-features", "on" },
185 const size_t hw_compat_2_7_len
= G_N_ELEMENTS(hw_compat_2_7
);
187 GlobalProperty hw_compat_2_6
[] = {
188 { "virtio-mmio", "format_transport_address", "off" },
189 /* Optional because not all virtio-pci devices support legacy mode */
190 { "virtio-pci", "disable-modern", "on", .optional
= true },
191 { "virtio-pci", "disable-legacy", "off", .optional
= true },
193 const size_t hw_compat_2_6_len
= G_N_ELEMENTS(hw_compat_2_6
);
195 GlobalProperty hw_compat_2_5
[] = {
196 { "isa-fdc", "fallback", "144" },
197 { "pvscsi", "x-old-pci-configuration", "on" },
198 { "pvscsi", "x-disable-pcie", "on" },
199 { "vmxnet3", "x-old-msi-offsets", "on" },
200 { "vmxnet3", "x-disable-pcie", "on" },
202 const size_t hw_compat_2_5_len
= G_N_ELEMENTS(hw_compat_2_5
);
204 GlobalProperty hw_compat_2_4
[] = {
205 /* Optional because the 'scsi' property is Linux-only */
206 { "virtio-blk-device", "scsi", "true", .optional
= true },
207 { "e1000", "extra_mac_registers", "off" },
208 { "virtio-pci", "x-disable-pcie", "on" },
209 { "virtio-pci", "migrate-extra", "off" },
210 { "fw_cfg_mem", "dma_enabled", "off" },
211 { "fw_cfg_io", "dma_enabled", "off" }
213 const size_t hw_compat_2_4_len
= G_N_ELEMENTS(hw_compat_2_4
);
215 GlobalProperty hw_compat_2_3
[] = {
216 { "virtio-blk-pci", "any_layout", "off" },
217 { "virtio-balloon-pci", "any_layout", "off" },
218 { "virtio-serial-pci", "any_layout", "off" },
219 { "virtio-9p-pci", "any_layout", "off" },
220 { "virtio-rng-pci", "any_layout", "off" },
221 { TYPE_PCI_DEVICE
, "x-pcie-lnksta-dllla", "off" },
222 { "migration", "send-configuration", "off" },
223 { "migration", "send-section-footer", "off" },
224 { "migration", "store-global-state", "off" },
226 const size_t hw_compat_2_3_len
= G_N_ELEMENTS(hw_compat_2_3
);
228 GlobalProperty hw_compat_2_2
[] = {};
229 const size_t hw_compat_2_2_len
= G_N_ELEMENTS(hw_compat_2_2
);
231 GlobalProperty hw_compat_2_1
[] = {
232 { "intel-hda", "old_msi_addr", "on" },
233 { "VGA", "qemu-extended-regs", "off" },
234 { "secondary-vga", "qemu-extended-regs", "off" },
235 { "virtio-scsi-pci", "any_layout", "off" },
236 { "usb-mouse", "usb_version", "1" },
237 { "usb-kbd", "usb_version", "1" },
238 { "virtio-pci", "virtio-pci-bus-master-bug-migration", "on" },
240 const size_t hw_compat_2_1_len
= G_N_ELEMENTS(hw_compat_2_1
);
242 MachineState
*current_machine
;
244 static char *machine_get_kernel(Object
*obj
, Error
**errp
)
246 MachineState
*ms
= MACHINE(obj
);
248 return g_strdup(ms
->kernel_filename
);
251 static void machine_set_kernel(Object
*obj
, const char *value
, Error
**errp
)
253 MachineState
*ms
= MACHINE(obj
);
255 g_free(ms
->kernel_filename
);
256 ms
->kernel_filename
= g_strdup(value
);
259 static char *machine_get_initrd(Object
*obj
, Error
**errp
)
261 MachineState
*ms
= MACHINE(obj
);
263 return g_strdup(ms
->initrd_filename
);
266 static void machine_set_initrd(Object
*obj
, const char *value
, Error
**errp
)
268 MachineState
*ms
= MACHINE(obj
);
270 g_free(ms
->initrd_filename
);
271 ms
->initrd_filename
= g_strdup(value
);
274 static char *machine_get_append(Object
*obj
, Error
**errp
)
276 MachineState
*ms
= MACHINE(obj
);
278 return g_strdup(ms
->kernel_cmdline
);
281 static void machine_set_append(Object
*obj
, const char *value
, Error
**errp
)
283 MachineState
*ms
= MACHINE(obj
);
285 g_free(ms
->kernel_cmdline
);
286 ms
->kernel_cmdline
= g_strdup(value
);
289 static char *machine_get_dtb(Object
*obj
, Error
**errp
)
291 MachineState
*ms
= MACHINE(obj
);
293 return g_strdup(ms
->dtb
);
296 static void machine_set_dtb(Object
*obj
, const char *value
, Error
**errp
)
298 MachineState
*ms
= MACHINE(obj
);
301 ms
->dtb
= g_strdup(value
);
304 static char *machine_get_dumpdtb(Object
*obj
, Error
**errp
)
306 MachineState
*ms
= MACHINE(obj
);
308 return g_strdup(ms
->dumpdtb
);
311 static void machine_set_dumpdtb(Object
*obj
, const char *value
, Error
**errp
)
313 MachineState
*ms
= MACHINE(obj
);
316 ms
->dumpdtb
= g_strdup(value
);
319 static void machine_get_phandle_start(Object
*obj
, Visitor
*v
,
320 const char *name
, void *opaque
,
323 MachineState
*ms
= MACHINE(obj
);
324 int64_t value
= ms
->phandle_start
;
326 visit_type_int(v
, name
, &value
, errp
);
329 static void machine_set_phandle_start(Object
*obj
, Visitor
*v
,
330 const char *name
, void *opaque
,
333 MachineState
*ms
= MACHINE(obj
);
336 if (!visit_type_int(v
, name
, &value
, errp
)) {
340 ms
->phandle_start
= value
;
343 static char *machine_get_dt_compatible(Object
*obj
, Error
**errp
)
345 MachineState
*ms
= MACHINE(obj
);
347 return g_strdup(ms
->dt_compatible
);
350 static void machine_set_dt_compatible(Object
*obj
, const char *value
, Error
**errp
)
352 MachineState
*ms
= MACHINE(obj
);
354 g_free(ms
->dt_compatible
);
355 ms
->dt_compatible
= g_strdup(value
);
358 static bool machine_get_dump_guest_core(Object
*obj
, Error
**errp
)
360 MachineState
*ms
= MACHINE(obj
);
362 return ms
->dump_guest_core
;
365 static void machine_set_dump_guest_core(Object
*obj
, bool value
, Error
**errp
)
367 MachineState
*ms
= MACHINE(obj
);
369 ms
->dump_guest_core
= value
;
372 static bool machine_get_mem_merge(Object
*obj
, Error
**errp
)
374 MachineState
*ms
= MACHINE(obj
);
376 return ms
->mem_merge
;
379 static void machine_set_mem_merge(Object
*obj
, bool value
, Error
**errp
)
381 MachineState
*ms
= MACHINE(obj
);
383 ms
->mem_merge
= value
;
386 static bool machine_get_usb(Object
*obj
, Error
**errp
)
388 MachineState
*ms
= MACHINE(obj
);
393 static void machine_set_usb(Object
*obj
, bool value
, Error
**errp
)
395 MachineState
*ms
= MACHINE(obj
);
398 ms
->usb_disabled
= !value
;
401 static bool machine_get_graphics(Object
*obj
, Error
**errp
)
403 MachineState
*ms
= MACHINE(obj
);
405 return ms
->enable_graphics
;
408 static void machine_set_graphics(Object
*obj
, bool value
, Error
**errp
)
410 MachineState
*ms
= MACHINE(obj
);
412 ms
->enable_graphics
= value
;
415 static char *machine_get_firmware(Object
*obj
, Error
**errp
)
417 MachineState
*ms
= MACHINE(obj
);
419 return g_strdup(ms
->firmware
);
422 static void machine_set_firmware(Object
*obj
, const char *value
, Error
**errp
)
424 MachineState
*ms
= MACHINE(obj
);
426 g_free(ms
->firmware
);
427 ms
->firmware
= g_strdup(value
);
430 static void machine_set_suppress_vmdesc(Object
*obj
, bool value
, Error
**errp
)
432 MachineState
*ms
= MACHINE(obj
);
434 ms
->suppress_vmdesc
= value
;
437 static bool machine_get_suppress_vmdesc(Object
*obj
, Error
**errp
)
439 MachineState
*ms
= MACHINE(obj
);
441 return ms
->suppress_vmdesc
;
444 static char *machine_get_memory_encryption(Object
*obj
, Error
**errp
)
446 MachineState
*ms
= MACHINE(obj
);
449 return g_strdup(object_get_canonical_path_component(OBJECT(ms
->cgs
)));
455 static void machine_set_memory_encryption(Object
*obj
, const char *value
,
459 object_resolve_path_component(object_get_objects_root(), value
);
462 error_setg(errp
, "No such memory encryption object '%s'", value
);
466 object_property_set_link(obj
, "confidential-guest-support", cgs
, errp
);
469 static void machine_check_confidential_guest_support(const Object
*obj
,
475 * So far the only constraint is that the target has the
476 * TYPE_CONFIDENTIAL_GUEST_SUPPORT interface, and that's checked
481 static bool machine_get_nvdimm(Object
*obj
, Error
**errp
)
483 MachineState
*ms
= MACHINE(obj
);
485 return ms
->nvdimms_state
->is_enabled
;
488 static void machine_set_nvdimm(Object
*obj
, bool value
, Error
**errp
)
490 MachineState
*ms
= MACHINE(obj
);
492 ms
->nvdimms_state
->is_enabled
= value
;
495 static bool machine_get_hmat(Object
*obj
, Error
**errp
)
497 MachineState
*ms
= MACHINE(obj
);
499 return ms
->numa_state
->hmat_enabled
;
502 static void machine_set_hmat(Object
*obj
, bool value
, Error
**errp
)
504 MachineState
*ms
= MACHINE(obj
);
506 ms
->numa_state
->hmat_enabled
= value
;
509 static char *machine_get_nvdimm_persistence(Object
*obj
, Error
**errp
)
511 MachineState
*ms
= MACHINE(obj
);
513 return g_strdup(ms
->nvdimms_state
->persistence_string
);
516 static void machine_set_nvdimm_persistence(Object
*obj
, const char *value
,
519 MachineState
*ms
= MACHINE(obj
);
520 NVDIMMState
*nvdimms_state
= ms
->nvdimms_state
;
522 if (strcmp(value
, "cpu") == 0) {
523 nvdimms_state
->persistence
= 3;
524 } else if (strcmp(value
, "mem-ctrl") == 0) {
525 nvdimms_state
->persistence
= 2;
527 error_setg(errp
, "-machine nvdimm-persistence=%s: unsupported option",
532 g_free(nvdimms_state
->persistence_string
);
533 nvdimms_state
->persistence_string
= g_strdup(value
);
536 void machine_class_allow_dynamic_sysbus_dev(MachineClass
*mc
, const char *type
)
538 QAPI_LIST_PREPEND(mc
->allowed_dynamic_sysbus_devices
, g_strdup(type
));
541 bool device_is_dynamic_sysbus(MachineClass
*mc
, DeviceState
*dev
)
543 bool allowed
= false;
545 Object
*obj
= OBJECT(dev
);
547 if (!object_dynamic_cast(obj
, TYPE_SYS_BUS_DEVICE
)) {
551 for (wl
= mc
->allowed_dynamic_sysbus_devices
;
554 allowed
|= !!object_dynamic_cast(obj
, wl
->value
);
560 static void validate_sysbus_device(SysBusDevice
*sbdev
, void *opaque
)
562 MachineState
*machine
= opaque
;
563 MachineClass
*mc
= MACHINE_GET_CLASS(machine
);
565 if (!device_is_dynamic_sysbus(mc
, DEVICE(sbdev
))) {
566 error_report("Option '-device %s' cannot be handled by this machine",
567 object_class_get_name(object_get_class(OBJECT(sbdev
))));
572 static char *machine_get_memdev(Object
*obj
, Error
**errp
)
574 MachineState
*ms
= MACHINE(obj
);
576 return g_strdup(ms
->ram_memdev_id
);
579 static void machine_set_memdev(Object
*obj
, const char *value
, Error
**errp
)
581 MachineState
*ms
= MACHINE(obj
);
583 g_free(ms
->ram_memdev_id
);
584 ms
->ram_memdev_id
= g_strdup(value
);
588 static void machine_init_notify(Notifier
*notifier
, void *data
)
590 MachineState
*machine
= MACHINE(qdev_get_machine());
593 * Loop through all dynamically created sysbus devices and check if they are
594 * all allowed. If a device is not allowed, error out.
596 foreach_dynamic_sysbus_device(validate_sysbus_device
, machine
);
599 HotpluggableCPUList
*machine_query_hotpluggable_cpus(MachineState
*machine
)
602 HotpluggableCPUList
*head
= NULL
;
603 MachineClass
*mc
= MACHINE_GET_CLASS(machine
);
605 /* force board to initialize possible_cpus if it hasn't been done yet */
606 mc
->possible_cpu_arch_ids(machine
);
608 for (i
= 0; i
< machine
->possible_cpus
->len
; i
++) {
610 HotpluggableCPU
*cpu_item
= g_new0(typeof(*cpu_item
), 1);
612 cpu_item
->type
= g_strdup(machine
->possible_cpus
->cpus
[i
].type
);
613 cpu_item
->vcpus_count
= machine
->possible_cpus
->cpus
[i
].vcpus_count
;
614 cpu_item
->props
= g_memdup(&machine
->possible_cpus
->cpus
[i
].props
,
615 sizeof(*cpu_item
->props
));
617 cpu
= machine
->possible_cpus
->cpus
[i
].cpu
;
619 cpu_item
->has_qom_path
= true;
620 cpu_item
->qom_path
= object_get_canonical_path(cpu
);
622 QAPI_LIST_PREPEND(head
, cpu_item
);
628 * machine_set_cpu_numa_node:
629 * @machine: machine object to modify
630 * @props: specifies which cpu objects to assign to
631 * numa node specified by @props.node_id
632 * @errp: if an error occurs, a pointer to an area to store the error
634 * Associate NUMA node specified by @props.node_id with cpu slots that
635 * match socket/core/thread-ids specified by @props. It's recommended to use
636 * query-hotpluggable-cpus.props values to specify affected cpu slots,
637 * which would lead to exact 1:1 mapping of cpu slots to NUMA node.
639 * However for CLI convenience it's possible to pass in subset of properties,
640 * which would affect all cpu slots that match it.
642 * -smp 4,cores=2,sockets=2 -numa node,nodeid=0 -numa node,nodeid=1 \
643 * -numa cpu,node-id=0,socket_id=0 \
644 * -numa cpu,node-id=1,socket_id=1
645 * will assign all child cores of socket 0 to node 0 and
646 * of socket 1 to node 1.
648 * On attempt of reassigning (already assigned) cpu slot to another NUMA node,
650 * Empty subset is disallowed and function will return with error in this case.
652 void machine_set_cpu_numa_node(MachineState
*machine
,
653 const CpuInstanceProperties
*props
, Error
**errp
)
655 MachineClass
*mc
= MACHINE_GET_CLASS(machine
);
656 NodeInfo
*numa_info
= machine
->numa_state
->nodes
;
660 if (!mc
->possible_cpu_arch_ids
) {
661 error_setg(errp
, "mapping of CPUs to NUMA node is not supported");
665 /* disabling node mapping is not supported, forbid it */
666 assert(props
->has_node_id
);
668 /* force board to initialize possible_cpus if it hasn't been done yet */
669 mc
->possible_cpu_arch_ids(machine
);
671 for (i
= 0; i
< machine
->possible_cpus
->len
; i
++) {
672 CPUArchId
*slot
= &machine
->possible_cpus
->cpus
[i
];
674 /* reject unsupported by board properties */
675 if (props
->has_thread_id
&& !slot
->props
.has_thread_id
) {
676 error_setg(errp
, "thread-id is not supported");
680 if (props
->has_core_id
&& !slot
->props
.has_core_id
) {
681 error_setg(errp
, "core-id is not supported");
685 if (props
->has_socket_id
&& !slot
->props
.has_socket_id
) {
686 error_setg(errp
, "socket-id is not supported");
690 if (props
->has_die_id
&& !slot
->props
.has_die_id
) {
691 error_setg(errp
, "die-id is not supported");
695 /* skip slots with explicit mismatch */
696 if (props
->has_thread_id
&& props
->thread_id
!= slot
->props
.thread_id
) {
700 if (props
->has_core_id
&& props
->core_id
!= slot
->props
.core_id
) {
704 if (props
->has_die_id
&& props
->die_id
!= slot
->props
.die_id
) {
708 if (props
->has_socket_id
&& props
->socket_id
!= slot
->props
.socket_id
) {
712 /* reject assignment if slot is already assigned, for compatibility
713 * of legacy cpu_index mapping with SPAPR core based mapping do not
714 * error out if cpu thread and matched core have the same node-id */
715 if (slot
->props
.has_node_id
&&
716 slot
->props
.node_id
!= props
->node_id
) {
717 error_setg(errp
, "CPU is already assigned to node-id: %" PRId64
,
718 slot
->props
.node_id
);
722 /* assign slot to node as it's matched '-numa cpu' key */
724 slot
->props
.node_id
= props
->node_id
;
725 slot
->props
.has_node_id
= props
->has_node_id
;
727 if (machine
->numa_state
->hmat_enabled
) {
728 if ((numa_info
[props
->node_id
].initiator
< MAX_NODES
) &&
729 (props
->node_id
!= numa_info
[props
->node_id
].initiator
)) {
730 error_setg(errp
, "The initiator of CPU NUMA node %" PRId64
731 " should be itself", props
->node_id
);
734 numa_info
[props
->node_id
].has_cpu
= true;
735 numa_info
[props
->node_id
].initiator
= props
->node_id
;
740 error_setg(errp
, "no match found");
744 static void smp_parse(MachineState
*ms
, SMPConfiguration
*config
, Error
**errp
)
746 unsigned cpus
= config
->has_cpus
? config
->cpus
: 0;
747 unsigned sockets
= config
->has_sockets
? config
->sockets
: 0;
748 unsigned cores
= config
->has_cores
? config
->cores
: 0;
749 unsigned threads
= config
->has_threads
? config
->threads
: 0;
751 if (config
->has_dies
&& config
->dies
!= 0 && config
->dies
!= 1) {
752 error_setg(errp
, "dies not supported by this machine's CPU topology");
755 /* compute missing values, prefer sockets over cores over threads */
756 if (cpus
== 0 || sockets
== 0) {
757 cores
= cores
> 0 ? cores
: 1;
758 threads
= threads
> 0 ? threads
: 1;
760 sockets
= sockets
> 0 ? sockets
: 1;
761 cpus
= cores
* threads
* sockets
;
763 ms
->smp
.max_cpus
= config
->has_maxcpus
? config
->maxcpus
: cpus
;
764 sockets
= ms
->smp
.max_cpus
/ (cores
* threads
);
766 } else if (cores
== 0) {
767 threads
= threads
> 0 ? threads
: 1;
768 cores
= cpus
/ (sockets
* threads
);
769 cores
= cores
> 0 ? cores
: 1;
770 } else if (threads
== 0) {
771 threads
= cpus
/ (cores
* sockets
);
772 threads
= threads
> 0 ? threads
: 1;
773 } else if (sockets
* cores
* threads
< cpus
) {
774 error_setg(errp
, "cpu topology: "
775 "sockets (%u) * cores (%u) * threads (%u) < "
777 sockets
, cores
, threads
, cpus
);
781 ms
->smp
.max_cpus
= config
->has_maxcpus
? config
->maxcpus
: cpus
;
783 if (ms
->smp
.max_cpus
< cpus
) {
784 error_setg(errp
, "maxcpus must be equal to or greater than smp");
788 if (sockets
* cores
* threads
!= ms
->smp
.max_cpus
) {
789 error_setg(errp
, "Invalid CPU topology: "
790 "sockets (%u) * cores (%u) * threads (%u) "
792 sockets
, cores
, threads
,
798 ms
->smp
.cores
= cores
;
799 ms
->smp
.threads
= threads
;
800 ms
->smp
.sockets
= sockets
;
803 static void machine_get_smp(Object
*obj
, Visitor
*v
, const char *name
,
804 void *opaque
, Error
**errp
)
806 MachineState
*ms
= MACHINE(obj
);
807 SMPConfiguration
*config
= &(SMPConfiguration
){
808 .has_cores
= true, .cores
= ms
->smp
.cores
,
809 .has_sockets
= true, .sockets
= ms
->smp
.sockets
,
810 .has_dies
= true, .dies
= ms
->smp
.dies
,
811 .has_threads
= true, .threads
= ms
->smp
.threads
,
812 .has_cpus
= true, .cpus
= ms
->smp
.cpus
,
813 .has_maxcpus
= true, .maxcpus
= ms
->smp
.max_cpus
,
815 if (!visit_type_SMPConfiguration(v
, name
, &config
, &error_abort
)) {
820 static void machine_set_smp(Object
*obj
, Visitor
*v
, const char *name
,
821 void *opaque
, Error
**errp
)
823 MachineClass
*mc
= MACHINE_GET_CLASS(obj
);
824 MachineState
*ms
= MACHINE(obj
);
825 SMPConfiguration
*config
;
828 if (!visit_type_SMPConfiguration(v
, name
, &config
, errp
)) {
832 mc
->smp_parse(ms
, config
, errp
);
837 /* sanity-check smp_cpus and max_cpus against mc */
838 if (ms
->smp
.cpus
< mc
->min_cpus
) {
839 error_setg(errp
, "Invalid SMP CPUs %d. The min CPUs "
840 "supported by machine '%s' is %d",
842 mc
->name
, mc
->min_cpus
);
843 } else if (ms
->smp
.max_cpus
> mc
->max_cpus
) {
844 error_setg(errp
, "Invalid SMP CPUs %d. The max CPUs "
845 "supported by machine '%s' is %d",
846 current_machine
->smp
.max_cpus
,
847 mc
->name
, mc
->max_cpus
);
851 qapi_free_SMPConfiguration(config
);
854 static void machine_class_init(ObjectClass
*oc
, void *data
)
856 MachineClass
*mc
= MACHINE_CLASS(oc
);
858 /* Default 128 MB as guest ram size */
859 mc
->default_ram_size
= 128 * MiB
;
860 mc
->rom_file_has_mr
= true;
861 mc
->smp_parse
= smp_parse
;
863 /* numa node memory size aligned on 8MB by default.
864 * On Linux, each node's border has to be 8MB aligned
866 mc
->numa_mem_align_shift
= 23;
868 object_class_property_add_str(oc
, "kernel",
869 machine_get_kernel
, machine_set_kernel
);
870 object_class_property_set_description(oc
, "kernel",
871 "Linux kernel image file");
873 object_class_property_add_str(oc
, "initrd",
874 machine_get_initrd
, machine_set_initrd
);
875 object_class_property_set_description(oc
, "initrd",
876 "Linux initial ramdisk file");
878 object_class_property_add_str(oc
, "append",
879 machine_get_append
, machine_set_append
);
880 object_class_property_set_description(oc
, "append",
881 "Linux kernel command line");
883 object_class_property_add_str(oc
, "dtb",
884 machine_get_dtb
, machine_set_dtb
);
885 object_class_property_set_description(oc
, "dtb",
886 "Linux kernel device tree file");
888 object_class_property_add_str(oc
, "dumpdtb",
889 machine_get_dumpdtb
, machine_set_dumpdtb
);
890 object_class_property_set_description(oc
, "dumpdtb",
891 "Dump current dtb to a file and quit");
893 object_class_property_add(oc
, "smp", "SMPConfiguration",
894 machine_get_smp
, machine_set_smp
,
896 object_class_property_set_description(oc
, "smp",
899 object_class_property_add(oc
, "phandle-start", "int",
900 machine_get_phandle_start
, machine_set_phandle_start
,
902 object_class_property_set_description(oc
, "phandle-start",
903 "The first phandle ID we may generate dynamically");
905 object_class_property_add_str(oc
, "dt-compatible",
906 machine_get_dt_compatible
, machine_set_dt_compatible
);
907 object_class_property_set_description(oc
, "dt-compatible",
908 "Overrides the \"compatible\" property of the dt root node");
910 object_class_property_add_bool(oc
, "dump-guest-core",
911 machine_get_dump_guest_core
, machine_set_dump_guest_core
);
912 object_class_property_set_description(oc
, "dump-guest-core",
913 "Include guest memory in a core dump");
915 object_class_property_add_bool(oc
, "mem-merge",
916 machine_get_mem_merge
, machine_set_mem_merge
);
917 object_class_property_set_description(oc
, "mem-merge",
918 "Enable/disable memory merge support");
920 object_class_property_add_bool(oc
, "usb",
921 machine_get_usb
, machine_set_usb
);
922 object_class_property_set_description(oc
, "usb",
923 "Set on/off to enable/disable usb");
925 object_class_property_add_bool(oc
, "graphics",
926 machine_get_graphics
, machine_set_graphics
);
927 object_class_property_set_description(oc
, "graphics",
928 "Set on/off to enable/disable graphics emulation");
930 object_class_property_add_str(oc
, "firmware",
931 machine_get_firmware
, machine_set_firmware
);
932 object_class_property_set_description(oc
, "firmware",
935 object_class_property_add_bool(oc
, "suppress-vmdesc",
936 machine_get_suppress_vmdesc
, machine_set_suppress_vmdesc
);
937 object_class_property_set_description(oc
, "suppress-vmdesc",
938 "Set on to disable self-describing migration");
940 object_class_property_add_link(oc
, "confidential-guest-support",
941 TYPE_CONFIDENTIAL_GUEST_SUPPORT
,
942 offsetof(MachineState
, cgs
),
943 machine_check_confidential_guest_support
,
944 OBJ_PROP_LINK_STRONG
);
945 object_class_property_set_description(oc
, "confidential-guest-support",
946 "Set confidential guest scheme to support");
948 /* For compatibility */
949 object_class_property_add_str(oc
, "memory-encryption",
950 machine_get_memory_encryption
, machine_set_memory_encryption
);
951 object_class_property_set_description(oc
, "memory-encryption",
952 "Set memory encryption object to use");
954 object_class_property_add_str(oc
, "memory-backend",
955 machine_get_memdev
, machine_set_memdev
);
956 object_class_property_set_description(oc
, "memory-backend",
958 "Valid value is ID of hostmem based backend");
961 static void machine_class_base_init(ObjectClass
*oc
, void *data
)
963 MachineClass
*mc
= MACHINE_CLASS(oc
);
964 mc
->max_cpus
= mc
->max_cpus
?: 1;
965 mc
->min_cpus
= mc
->min_cpus
?: 1;
966 mc
->default_cpus
= mc
->default_cpus
?: 1;
968 if (!object_class_is_abstract(oc
)) {
969 const char *cname
= object_class_get_name(oc
);
970 assert(g_str_has_suffix(cname
, TYPE_MACHINE_SUFFIX
));
971 mc
->name
= g_strndup(cname
,
972 strlen(cname
) - strlen(TYPE_MACHINE_SUFFIX
));
973 mc
->compat_props
= g_ptr_array_new();
977 static void machine_initfn(Object
*obj
)
979 MachineState
*ms
= MACHINE(obj
);
980 MachineClass
*mc
= MACHINE_GET_CLASS(obj
);
982 container_get(obj
, "/peripheral");
983 container_get(obj
, "/peripheral-anon");
985 ms
->dump_guest_core
= true;
986 ms
->mem_merge
= true;
987 ms
->enable_graphics
= true;
988 ms
->kernel_cmdline
= g_strdup("");
990 if (mc
->nvdimm_supported
) {
991 Object
*obj
= OBJECT(ms
);
993 ms
->nvdimms_state
= g_new0(NVDIMMState
, 1);
994 object_property_add_bool(obj
, "nvdimm",
995 machine_get_nvdimm
, machine_set_nvdimm
);
996 object_property_set_description(obj
, "nvdimm",
997 "Set on/off to enable/disable "
998 "NVDIMM instantiation");
1000 object_property_add_str(obj
, "nvdimm-persistence",
1001 machine_get_nvdimm_persistence
,
1002 machine_set_nvdimm_persistence
);
1003 object_property_set_description(obj
, "nvdimm-persistence",
1004 "Set NVDIMM persistence"
1005 "Valid values are cpu, mem-ctrl");
1008 if (mc
->cpu_index_to_instance_props
&& mc
->get_default_cpu_node_id
) {
1009 ms
->numa_state
= g_new0(NumaState
, 1);
1010 object_property_add_bool(obj
, "hmat",
1011 machine_get_hmat
, machine_set_hmat
);
1012 object_property_set_description(obj
, "hmat",
1013 "Set on/off to enable/disable "
1014 "ACPI Heterogeneous Memory Attribute "
1018 /* Register notifier when init is done for sysbus sanity checks */
1019 ms
->sysbus_notifier
.notify
= machine_init_notify
;
1020 qemu_add_machine_init_done_notifier(&ms
->sysbus_notifier
);
1022 /* default to mc->default_cpus */
1023 ms
->smp
.cpus
= mc
->default_cpus
;
1024 ms
->smp
.max_cpus
= mc
->default_cpus
;
1027 ms
->smp
.threads
= 1;
1028 ms
->smp
.sockets
= 1;
1031 static void machine_finalize(Object
*obj
)
1033 MachineState
*ms
= MACHINE(obj
);
1035 g_free(ms
->kernel_filename
);
1036 g_free(ms
->initrd_filename
);
1037 g_free(ms
->kernel_cmdline
);
1039 g_free(ms
->dumpdtb
);
1040 g_free(ms
->dt_compatible
);
1041 g_free(ms
->firmware
);
1042 g_free(ms
->device_memory
);
1043 g_free(ms
->nvdimms_state
);
1044 g_free(ms
->numa_state
);
1047 bool machine_usb(MachineState
*machine
)
1049 return machine
->usb
;
1052 int machine_phandle_start(MachineState
*machine
)
1054 return machine
->phandle_start
;
1057 bool machine_dump_guest_core(MachineState
*machine
)
1059 return machine
->dump_guest_core
;
1062 bool machine_mem_merge(MachineState
*machine
)
1064 return machine
->mem_merge
;
1067 static char *cpu_slot_to_string(const CPUArchId
*cpu
)
1069 GString
*s
= g_string_new(NULL
);
1070 if (cpu
->props
.has_socket_id
) {
1071 g_string_append_printf(s
, "socket-id: %"PRId64
, cpu
->props
.socket_id
);
1073 if (cpu
->props
.has_die_id
) {
1074 g_string_append_printf(s
, "die-id: %"PRId64
, cpu
->props
.die_id
);
1076 if (cpu
->props
.has_core_id
) {
1078 g_string_append_printf(s
, ", ");
1080 g_string_append_printf(s
, "core-id: %"PRId64
, cpu
->props
.core_id
);
1082 if (cpu
->props
.has_thread_id
) {
1084 g_string_append_printf(s
, ", ");
1086 g_string_append_printf(s
, "thread-id: %"PRId64
, cpu
->props
.thread_id
);
1088 return g_string_free(s
, false);
1091 static void numa_validate_initiator(NumaState
*numa_state
)
1094 NodeInfo
*numa_info
= numa_state
->nodes
;
1096 for (i
= 0; i
< numa_state
->num_nodes
; i
++) {
1097 if (numa_info
[i
].initiator
== MAX_NODES
) {
1098 error_report("The initiator of NUMA node %d is missing, use "
1099 "'-numa node,initiator' option to declare it", i
);
1103 if (!numa_info
[numa_info
[i
].initiator
].present
) {
1104 error_report("NUMA node %" PRIu16
" is missing, use "
1105 "'-numa node' option to declare it first",
1106 numa_info
[i
].initiator
);
1110 if (!numa_info
[numa_info
[i
].initiator
].has_cpu
) {
1111 error_report("The initiator of NUMA node %d is invalid", i
);
1117 static void machine_numa_finish_cpu_init(MachineState
*machine
)
1120 bool default_mapping
;
1121 GString
*s
= g_string_new(NULL
);
1122 MachineClass
*mc
= MACHINE_GET_CLASS(machine
);
1123 const CPUArchIdList
*possible_cpus
= mc
->possible_cpu_arch_ids(machine
);
1125 assert(machine
->numa_state
->num_nodes
);
1126 for (i
= 0; i
< possible_cpus
->len
; i
++) {
1127 if (possible_cpus
->cpus
[i
].props
.has_node_id
) {
1131 default_mapping
= (i
== possible_cpus
->len
);
1133 for (i
= 0; i
< possible_cpus
->len
; i
++) {
1134 const CPUArchId
*cpu_slot
= &possible_cpus
->cpus
[i
];
1136 if (!cpu_slot
->props
.has_node_id
) {
1137 /* fetch default mapping from board and enable it */
1138 CpuInstanceProperties props
= cpu_slot
->props
;
1140 props
.node_id
= mc
->get_default_cpu_node_id(machine
, i
);
1141 if (!default_mapping
) {
1142 /* record slots with not set mapping,
1143 * TODO: make it hard error in future */
1144 char *cpu_str
= cpu_slot_to_string(cpu_slot
);
1145 g_string_append_printf(s
, "%sCPU %d [%s]",
1146 s
->len
? ", " : "", i
, cpu_str
);
1149 /* non mapped cpus used to fallback to node 0 */
1153 props
.has_node_id
= true;
1154 machine_set_cpu_numa_node(machine
, &props
, &error_fatal
);
1158 if (machine
->numa_state
->hmat_enabled
) {
1159 numa_validate_initiator(machine
->numa_state
);
1162 if (s
->len
&& !qtest_enabled()) {
1163 warn_report("CPU(s) not present in any NUMA nodes: %s",
1165 warn_report("All CPU(s) up to maxcpus should be described "
1166 "in NUMA config, ability to start up with partial NUMA "
1167 "mappings is obsoleted and will be removed in future");
1169 g_string_free(s
, true);
1172 MemoryRegion
*machine_consume_memdev(MachineState
*machine
,
1173 HostMemoryBackend
*backend
)
1175 MemoryRegion
*ret
= host_memory_backend_get_memory(backend
);
1177 if (memory_region_is_mapped(ret
)) {
1178 error_report("memory backend %s can't be used multiple times.",
1179 object_get_canonical_path_component(OBJECT(backend
)));
1182 host_memory_backend_set_mapped(backend
, true);
1183 vmstate_register_ram_global(ret
);
1187 void machine_run_board_init(MachineState
*machine
)
1189 MachineClass
*machine_class
= MACHINE_GET_CLASS(machine
);
1190 ObjectClass
*oc
= object_class_by_name(machine
->cpu_type
);
1193 /* This checkpoint is required by replay to separate prior clock
1194 reading from the other reads, because timer polling functions query
1195 clock values from the log. */
1196 replay_checkpoint(CHECKPOINT_INIT
);
1198 if (machine
->ram_memdev_id
) {
1200 o
= object_resolve_path_type(machine
->ram_memdev_id
,
1201 TYPE_MEMORY_BACKEND
, NULL
);
1202 machine
->ram
= machine_consume_memdev(machine
, MEMORY_BACKEND(o
));
1205 if (machine
->numa_state
) {
1206 numa_complete_configuration(machine
);
1207 if (machine
->numa_state
->num_nodes
) {
1208 machine_numa_finish_cpu_init(machine
);
1212 /* If the machine supports the valid_cpu_types check and the user
1213 * specified a CPU with -cpu check here that the user CPU is supported.
1215 if (machine_class
->valid_cpu_types
&& machine
->cpu_type
) {
1218 for (i
= 0; machine_class
->valid_cpu_types
[i
]; i
++) {
1219 if (object_class_dynamic_cast(oc
,
1220 machine_class
->valid_cpu_types
[i
])) {
1221 /* The user specificed CPU is in the valid field, we are
1228 if (!machine_class
->valid_cpu_types
[i
]) {
1229 /* The user specified CPU is not valid */
1230 error_report("Invalid CPU type: %s", machine
->cpu_type
);
1231 error_printf("The valid types are: %s",
1232 machine_class
->valid_cpu_types
[0]);
1233 for (i
= 1; machine_class
->valid_cpu_types
[i
]; i
++) {
1234 error_printf(", %s", machine_class
->valid_cpu_types
[i
]);
1242 /* Check if CPU type is deprecated and warn if so */
1244 if (cc
&& cc
->deprecation_note
) {
1245 warn_report("CPU model %s is deprecated -- %s", machine
->cpu_type
,
1246 cc
->deprecation_note
);
1251 * With confidential guests, the host can't see the real
1252 * contents of RAM, so there's no point in it trying to merge
1255 machine_set_mem_merge(OBJECT(machine
), false, &error_abort
);
1258 * Virtio devices can't count on directly accessing guest
1259 * memory, so they need iommu_platform=on to use normal DMA
1260 * mechanisms. That requires also disabling legacy virtio
1261 * support for those virtio pci devices which allow it.
1263 object_register_sugar_prop(TYPE_VIRTIO_PCI
, "disable-legacy",
1265 object_register_sugar_prop(TYPE_VIRTIO_DEVICE
, "iommu_platform",
1269 accel_init_interfaces(ACCEL_GET_CLASS(machine
->accelerator
));
1270 machine_class
->init(machine
);
1271 phase_advance(PHASE_MACHINE_INITIALIZED
);
1274 static NotifierList machine_init_done_notifiers
=
1275 NOTIFIER_LIST_INITIALIZER(machine_init_done_notifiers
);
1277 void qemu_add_machine_init_done_notifier(Notifier
*notify
)
1279 notifier_list_add(&machine_init_done_notifiers
, notify
);
1280 if (phase_check(PHASE_MACHINE_READY
)) {
1281 notify
->notify(notify
, NULL
);
1285 void qemu_remove_machine_init_done_notifier(Notifier
*notify
)
1287 notifier_remove(notify
);
1290 void qdev_machine_creation_done(void)
1292 cpu_synchronize_all_post_init();
1294 if (current_machine
->boot_once
) {
1295 qemu_boot_set(current_machine
->boot_once
, &error_fatal
);
1296 qemu_register_reset(restore_boot_order
, g_strdup(current_machine
->boot_order
));
1300 * ok, initial machine setup is done, starting from now we can
1301 * only create hotpluggable devices
1303 phase_advance(PHASE_MACHINE_READY
);
1304 qdev_assert_realized_properly();
1306 /* TODO: once all bus devices are qdevified, this should be done
1307 * when bus is created by qdev.c */
1309 * TODO: If we had a main 'reset container' that the whole system
1310 * lived in, we could reset that using the multi-phase reset
1311 * APIs. For the moment, we just reset the sysbus, which will cause
1312 * all devices hanging off it (and all their child buses, recursively)
1313 * to be reset. Note that this will *not* reset any Device objects
1314 * which are not attached to some part of the qbus tree!
1316 qemu_register_reset(resettable_cold_reset_fn
, sysbus_get_default());
1318 notifier_list_notify(&machine_init_done_notifiers
, NULL
);
1320 if (rom_check_and_register_reset() != 0) {
1326 /* This checkpoint is required by replay to separate prior clock
1327 reading from the other reads, because timer polling functions query
1328 clock values from the log. */
1329 replay_checkpoint(CHECKPOINT_RESET
);
1330 qemu_system_reset(SHUTDOWN_CAUSE_NONE
);
1331 register_global_state();
1334 static const TypeInfo machine_info
= {
1335 .name
= TYPE_MACHINE
,
1336 .parent
= TYPE_OBJECT
,
1338 .class_size
= sizeof(MachineClass
),
1339 .class_init
= machine_class_init
,
1340 .class_base_init
= machine_class_base_init
,
1341 .instance_size
= sizeof(MachineState
),
1342 .instance_init
= machine_initfn
,
1343 .instance_finalize
= machine_finalize
,
1346 static void machine_register_types(void)
1348 type_register_static(&machine_info
);
1351 type_init(machine_register_types
)