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/accel.h"
15 #include "sysemu/replay.h"
16 #include "hw/boards.h"
17 #include "hw/loader.h"
18 #include "qapi/error.h"
19 #include "qapi/qapi-visit-machine.h"
20 #include "qemu/madvise.h"
21 #include "qom/object_interfaces.h"
22 #include "sysemu/cpus.h"
23 #include "sysemu/sysemu.h"
24 #include "sysemu/reset.h"
25 #include "sysemu/runstate.h"
26 #include "sysemu/xen.h"
27 #include "sysemu/qtest.h"
28 #include "hw/pci/pci_bridge.h"
29 #include "hw/mem/nvdimm.h"
30 #include "migration/global_state.h"
31 #include "exec/confidential-guest-support.h"
32 #include "hw/virtio/virtio-pci.h"
33 #include "hw/virtio/virtio-net.h"
34 #include "hw/virtio/virtio-iommu.h"
35 #include "audio/audio.h"
37 GlobalProperty hw_compat_9_0
[] = {
38 {"arm-cpu", "backcompat-cntfrq", "true" },
39 { "scsi-hd", "migrate-emulated-scsi-request", "false" },
40 { "scsi-cd", "migrate-emulated-scsi-request", "false" },
41 {"vfio-pci", "skip-vsc-check", "false" },
42 { "virtio-pci", "x-pcie-pm-no-soft-reset", "off" },
43 {"sd-card", "spec_version", "2" },
45 const size_t hw_compat_9_0_len
= G_N_ELEMENTS(hw_compat_9_0
);
47 GlobalProperty hw_compat_8_2
[] = {
48 { "migration", "zero-page-detection", "legacy"},
49 { TYPE_VIRTIO_IOMMU_PCI
, "granule", "4k" },
50 { TYPE_VIRTIO_IOMMU_PCI
, "aw-bits", "64" },
51 { "virtio-gpu-device", "x-scanout-vmstate-version", "1" },
53 const size_t hw_compat_8_2_len
= G_N_ELEMENTS(hw_compat_8_2
);
55 GlobalProperty hw_compat_8_1
[] = {
56 { TYPE_PCI_BRIDGE
, "x-pci-express-writeable-slt-bug", "true" },
57 { "ramfb", "x-migrate", "off" },
58 { "vfio-pci-nohotplug", "x-ramfb-migrate", "off" },
59 { "igb", "x-pcie-flr-init", "off" },
60 { TYPE_VIRTIO_NET
, "host_uso", "off"},
61 { TYPE_VIRTIO_NET
, "guest_uso4", "off"},
62 { TYPE_VIRTIO_NET
, "guest_uso6", "off"},
64 const size_t hw_compat_8_1_len
= G_N_ELEMENTS(hw_compat_8_1
);
66 GlobalProperty hw_compat_8_0
[] = {
67 { "migration", "multifd-flush-after-each-section", "on"},
68 { TYPE_PCI_DEVICE
, "x-pcie-ari-nextfn-1", "on" },
70 const size_t hw_compat_8_0_len
= G_N_ELEMENTS(hw_compat_8_0
);
72 GlobalProperty hw_compat_7_2
[] = {
73 { "e1000e", "migrate-timadj", "off" },
74 { "virtio-mem", "x-early-migration", "false" },
75 { "migration", "x-preempt-pre-7-2", "true" },
76 { TYPE_PCI_DEVICE
, "x-pcie-err-unc-mask", "off" },
78 const size_t hw_compat_7_2_len
= G_N_ELEMENTS(hw_compat_7_2
);
80 GlobalProperty hw_compat_7_1
[] = {
81 { "virtio-device", "queue_reset", "false" },
82 { "virtio-rng-pci", "vectors", "0" },
83 { "virtio-rng-pci-transitional", "vectors", "0" },
84 { "virtio-rng-pci-non-transitional", "vectors", "0" },
86 const size_t hw_compat_7_1_len
= G_N_ELEMENTS(hw_compat_7_1
);
88 GlobalProperty hw_compat_7_0
[] = {
89 { "arm-gicv3-common", "force-8-bit-prio", "on" },
90 { "nvme-ns", "eui64-default", "on"},
92 const size_t hw_compat_7_0_len
= G_N_ELEMENTS(hw_compat_7_0
);
94 GlobalProperty hw_compat_6_2
[] = {
95 { "PIIX4_PM", "x-not-migrate-acpi-index", "on"},
97 const size_t hw_compat_6_2_len
= G_N_ELEMENTS(hw_compat_6_2
);
99 GlobalProperty hw_compat_6_1
[] = {
100 { "vhost-user-vsock-device", "seqpacket", "off" },
101 { "nvme-ns", "shared", "off" },
103 const size_t hw_compat_6_1_len
= G_N_ELEMENTS(hw_compat_6_1
);
105 GlobalProperty hw_compat_6_0
[] = {
106 { "gpex-pcihost", "allow-unmapped-accesses", "false" },
107 { "i8042", "extended-state", "false"},
108 { "nvme-ns", "eui64-default", "off"},
109 { "e1000", "init-vet", "off" },
110 { "e1000e", "init-vet", "off" },
111 { "vhost-vsock-device", "seqpacket", "off" },
113 const size_t hw_compat_6_0_len
= G_N_ELEMENTS(hw_compat_6_0
);
115 GlobalProperty hw_compat_5_2
[] = {
116 { "ICH9-LPC", "smm-compat", "on"},
117 { "PIIX4_PM", "smm-compat", "on"},
118 { "virtio-blk-device", "report-discard-granularity", "off" },
119 { "virtio-net-pci-base", "vectors", "3"},
120 { "nvme", "msix-exclusive-bar", "on"},
122 const size_t hw_compat_5_2_len
= G_N_ELEMENTS(hw_compat_5_2
);
124 GlobalProperty hw_compat_5_1
[] = {
125 { "vhost-scsi", "num_queues", "1"},
126 { "vhost-user-blk", "num-queues", "1"},
127 { "vhost-user-scsi", "num_queues", "1"},
128 { "virtio-blk-device", "num-queues", "1"},
129 { "virtio-scsi-device", "num_queues", "1"},
130 { "nvme", "use-intel-id", "on"},
131 { "pvpanic", "events", "1"}, /* PVPANIC_PANICKED */
132 { "pl011", "migrate-clk", "off" },
133 { "virtio-pci", "x-ats-page-aligned", "off"},
135 const size_t hw_compat_5_1_len
= G_N_ELEMENTS(hw_compat_5_1
);
137 GlobalProperty hw_compat_5_0
[] = {
138 { "pci-host-bridge", "x-config-reg-migration-enabled", "off" },
139 { "virtio-balloon-device", "page-poison", "false" },
140 { "vmport", "x-read-set-eax", "off" },
141 { "vmport", "x-signal-unsupported-cmd", "off" },
142 { "vmport", "x-report-vmx-type", "off" },
143 { "vmport", "x-cmds-v2", "off" },
144 { "virtio-device", "x-disable-legacy-check", "true" },
146 const size_t hw_compat_5_0_len
= G_N_ELEMENTS(hw_compat_5_0
);
148 GlobalProperty hw_compat_4_2
[] = {
149 { "virtio-blk-device", "queue-size", "128"},
150 { "virtio-scsi-device", "virtqueue_size", "128"},
151 { "virtio-blk-device", "x-enable-wce-if-config-wce", "off" },
152 { "virtio-blk-device", "seg-max-adjust", "off"},
153 { "virtio-scsi-device", "seg_max_adjust", "off"},
154 { "vhost-blk-device", "seg_max_adjust", "off"},
155 { "usb-host", "suppress-remote-wake", "off" },
156 { "usb-redir", "suppress-remote-wake", "off" },
157 { "qxl", "revision", "4" },
158 { "qxl-vga", "revision", "4" },
159 { "fw_cfg", "acpi-mr-restore", "false" },
160 { "virtio-device", "use-disabled-flag", "false" },
162 const size_t hw_compat_4_2_len
= G_N_ELEMENTS(hw_compat_4_2
);
164 GlobalProperty hw_compat_4_1
[] = {
165 { "virtio-pci", "x-pcie-flr-init", "off" },
167 const size_t hw_compat_4_1_len
= G_N_ELEMENTS(hw_compat_4_1
);
169 GlobalProperty hw_compat_4_0
[] = {
170 { "VGA", "edid", "false" },
171 { "secondary-vga", "edid", "false" },
172 { "bochs-display", "edid", "false" },
173 { "virtio-vga", "edid", "false" },
174 { "virtio-gpu-device", "edid", "false" },
175 { "virtio-device", "use-started", "false" },
176 { "virtio-balloon-device", "qemu-4-0-config-size", "true" },
177 { "pl031", "migrate-tick-offset", "false" },
179 const size_t hw_compat_4_0_len
= G_N_ELEMENTS(hw_compat_4_0
);
181 GlobalProperty hw_compat_3_1
[] = {
182 { "pcie-root-port", "x-speed", "2_5" },
183 { "pcie-root-port", "x-width", "1" },
184 { "memory-backend-file", "x-use-canonical-path-for-ramblock-id", "true" },
185 { "memory-backend-memfd", "x-use-canonical-path-for-ramblock-id", "true" },
186 { "tpm-crb", "ppi", "false" },
187 { "tpm-tis", "ppi", "false" },
188 { "usb-kbd", "serial", "42" },
189 { "usb-mouse", "serial", "42" },
190 { "usb-tablet", "serial", "42" },
191 { "virtio-blk-device", "discard", "false" },
192 { "virtio-blk-device", "write-zeroes", "false" },
193 { "virtio-balloon-device", "qemu-4-0-config-size", "false" },
194 { "pcie-root-port-base", "disable-acs", "true" }, /* Added in 4.1 */
196 const size_t hw_compat_3_1_len
= G_N_ELEMENTS(hw_compat_3_1
);
198 GlobalProperty hw_compat_3_0
[] = {};
199 const size_t hw_compat_3_0_len
= G_N_ELEMENTS(hw_compat_3_0
);
201 GlobalProperty hw_compat_2_12
[] = {
202 { "hda-audio", "use-timer", "false" },
203 { "cirrus-vga", "global-vmstate", "true" },
204 { "VGA", "global-vmstate", "true" },
205 { "vmware-svga", "global-vmstate", "true" },
206 { "qxl-vga", "global-vmstate", "true" },
208 const size_t hw_compat_2_12_len
= G_N_ELEMENTS(hw_compat_2_12
);
210 GlobalProperty hw_compat_2_11
[] = {
211 { "hpet", "hpet-offset-saved", "false" },
212 { "virtio-blk-pci", "vectors", "2" },
213 { "vhost-user-blk-pci", "vectors", "2" },
214 { "e1000", "migrate_tso_props", "off" },
216 const size_t hw_compat_2_11_len
= G_N_ELEMENTS(hw_compat_2_11
);
218 GlobalProperty hw_compat_2_10
[] = {
219 { "virtio-mouse-device", "wheel-axis", "false" },
220 { "virtio-tablet-device", "wheel-axis", "false" },
222 const size_t hw_compat_2_10_len
= G_N_ELEMENTS(hw_compat_2_10
);
224 GlobalProperty hw_compat_2_9
[] = {
225 { "pci-bridge", "shpc", "off" },
226 { "intel-iommu", "pt", "off" },
227 { "virtio-net-device", "x-mtu-bypass-backend", "off" },
228 { "pcie-root-port", "x-migrate-msix", "false" },
230 const size_t hw_compat_2_9_len
= G_N_ELEMENTS(hw_compat_2_9
);
232 GlobalProperty hw_compat_2_8
[] = {
233 { "fw_cfg_mem", "x-file-slots", "0x10" },
234 { "fw_cfg_io", "x-file-slots", "0x10" },
235 { "pflash_cfi01", "old-multiple-chip-handling", "on" },
236 { "pci-bridge", "shpc", "on" },
237 { TYPE_PCI_DEVICE
, "x-pcie-extcap-init", "off" },
238 { "virtio-pci", "x-pcie-deverr-init", "off" },
239 { "virtio-pci", "x-pcie-lnkctl-init", "off" },
240 { "virtio-pci", "x-pcie-pm-init", "off" },
241 { "cirrus-vga", "vgamem_mb", "8" },
242 { "isa-cirrus-vga", "vgamem_mb", "8" },
244 const size_t hw_compat_2_8_len
= G_N_ELEMENTS(hw_compat_2_8
);
246 GlobalProperty hw_compat_2_7
[] = {
247 { "virtio-pci", "page-per-vq", "on" },
248 { "virtio-serial-device", "emergency-write", "off" },
249 { "ioapic", "version", "0x11" },
250 { "intel-iommu", "x-buggy-eim", "true" },
251 { "virtio-pci", "x-ignore-backend-features", "on" },
253 const size_t hw_compat_2_7_len
= G_N_ELEMENTS(hw_compat_2_7
);
255 GlobalProperty hw_compat_2_6
[] = {
256 { "virtio-mmio", "format_transport_address", "off" },
257 /* Optional because not all virtio-pci devices support legacy mode */
258 { "virtio-pci", "disable-modern", "on", .optional
= true },
259 { "virtio-pci", "disable-legacy", "off", .optional
= true },
261 const size_t hw_compat_2_6_len
= G_N_ELEMENTS(hw_compat_2_6
);
263 GlobalProperty hw_compat_2_5
[] = {
264 { "isa-fdc", "fallback", "144" },
265 { "pvscsi", "x-old-pci-configuration", "on" },
266 { "pvscsi", "x-disable-pcie", "on" },
267 { "vmxnet3", "x-old-msi-offsets", "on" },
268 { "vmxnet3", "x-disable-pcie", "on" },
270 const size_t hw_compat_2_5_len
= G_N_ELEMENTS(hw_compat_2_5
);
272 GlobalProperty hw_compat_2_4
[] = {
273 { "e1000", "extra_mac_registers", "off" },
274 { "virtio-pci", "x-disable-pcie", "on" },
275 { "virtio-pci", "migrate-extra", "off" },
276 { "fw_cfg_mem", "dma_enabled", "off" },
277 { "fw_cfg_io", "dma_enabled", "off" }
279 const size_t hw_compat_2_4_len
= G_N_ELEMENTS(hw_compat_2_4
);
281 GlobalProperty hw_compat_2_3
[] = {
282 { "virtio-blk-pci", "any_layout", "off" },
283 { "virtio-balloon-pci", "any_layout", "off" },
284 { "virtio-serial-pci", "any_layout", "off" },
285 { "virtio-9p-pci", "any_layout", "off" },
286 { "virtio-rng-pci", "any_layout", "off" },
287 { TYPE_PCI_DEVICE
, "x-pcie-lnksta-dllla", "off" },
288 { "migration", "send-configuration", "off" },
289 { "migration", "send-section-footer", "off" },
290 { "migration", "store-global-state", "off" },
292 const size_t hw_compat_2_3_len
= G_N_ELEMENTS(hw_compat_2_3
);
294 GlobalProperty hw_compat_2_2
[] = {};
295 const size_t hw_compat_2_2_len
= G_N_ELEMENTS(hw_compat_2_2
);
297 GlobalProperty hw_compat_2_1
[] = {
298 { "intel-hda", "old_msi_addr", "on" },
299 { "VGA", "qemu-extended-regs", "off" },
300 { "secondary-vga", "qemu-extended-regs", "off" },
301 { "virtio-scsi-pci", "any_layout", "off" },
302 { "usb-mouse", "usb_version", "1" },
303 { "usb-kbd", "usb_version", "1" },
304 { "virtio-pci", "virtio-pci-bus-master-bug-migration", "on" },
306 const size_t hw_compat_2_1_len
= G_N_ELEMENTS(hw_compat_2_1
);
308 MachineState
*current_machine
;
310 static char *machine_get_kernel(Object
*obj
, Error
**errp
)
312 MachineState
*ms
= MACHINE(obj
);
314 return g_strdup(ms
->kernel_filename
);
317 static void machine_set_kernel(Object
*obj
, const char *value
, Error
**errp
)
319 MachineState
*ms
= MACHINE(obj
);
321 g_free(ms
->kernel_filename
);
322 ms
->kernel_filename
= g_strdup(value
);
325 static char *machine_get_initrd(Object
*obj
, Error
**errp
)
327 MachineState
*ms
= MACHINE(obj
);
329 return g_strdup(ms
->initrd_filename
);
332 static void machine_set_initrd(Object
*obj
, const char *value
, Error
**errp
)
334 MachineState
*ms
= MACHINE(obj
);
336 g_free(ms
->initrd_filename
);
337 ms
->initrd_filename
= g_strdup(value
);
340 static char *machine_get_append(Object
*obj
, Error
**errp
)
342 MachineState
*ms
= MACHINE(obj
);
344 return g_strdup(ms
->kernel_cmdline
);
347 static void machine_set_append(Object
*obj
, const char *value
, Error
**errp
)
349 MachineState
*ms
= MACHINE(obj
);
351 g_free(ms
->kernel_cmdline
);
352 ms
->kernel_cmdline
= g_strdup(value
);
355 static char *machine_get_dtb(Object
*obj
, Error
**errp
)
357 MachineState
*ms
= MACHINE(obj
);
359 return g_strdup(ms
->dtb
);
362 static void machine_set_dtb(Object
*obj
, const char *value
, Error
**errp
)
364 MachineState
*ms
= MACHINE(obj
);
367 ms
->dtb
= g_strdup(value
);
370 static char *machine_get_dumpdtb(Object
*obj
, Error
**errp
)
372 MachineState
*ms
= MACHINE(obj
);
374 return g_strdup(ms
->dumpdtb
);
377 static void machine_set_dumpdtb(Object
*obj
, const char *value
, Error
**errp
)
379 MachineState
*ms
= MACHINE(obj
);
382 ms
->dumpdtb
= g_strdup(value
);
385 static void machine_get_phandle_start(Object
*obj
, Visitor
*v
,
386 const char *name
, void *opaque
,
389 MachineState
*ms
= MACHINE(obj
);
390 int64_t value
= ms
->phandle_start
;
392 visit_type_int(v
, name
, &value
, errp
);
395 static void machine_set_phandle_start(Object
*obj
, Visitor
*v
,
396 const char *name
, void *opaque
,
399 MachineState
*ms
= MACHINE(obj
);
402 if (!visit_type_int(v
, name
, &value
, errp
)) {
406 ms
->phandle_start
= value
;
409 static char *machine_get_dt_compatible(Object
*obj
, Error
**errp
)
411 MachineState
*ms
= MACHINE(obj
);
413 return g_strdup(ms
->dt_compatible
);
416 static void machine_set_dt_compatible(Object
*obj
, const char *value
, Error
**errp
)
418 MachineState
*ms
= MACHINE(obj
);
420 g_free(ms
->dt_compatible
);
421 ms
->dt_compatible
= g_strdup(value
);
424 static bool machine_get_dump_guest_core(Object
*obj
, Error
**errp
)
426 MachineState
*ms
= MACHINE(obj
);
428 return ms
->dump_guest_core
;
431 static void machine_set_dump_guest_core(Object
*obj
, bool value
, Error
**errp
)
433 MachineState
*ms
= MACHINE(obj
);
435 if (!value
&& QEMU_MADV_DONTDUMP
== QEMU_MADV_INVALID
) {
436 error_setg(errp
, "Dumping guest memory cannot be disabled on this host");
439 ms
->dump_guest_core
= value
;
442 static bool machine_get_mem_merge(Object
*obj
, Error
**errp
)
444 MachineState
*ms
= MACHINE(obj
);
446 return ms
->mem_merge
;
449 static void machine_set_mem_merge(Object
*obj
, bool value
, Error
**errp
)
451 MachineState
*ms
= MACHINE(obj
);
453 if (value
&& QEMU_MADV_MERGEABLE
== QEMU_MADV_INVALID
) {
454 error_setg(errp
, "Memory merging is not supported on this host");
457 ms
->mem_merge
= value
;
460 static bool machine_get_usb(Object
*obj
, Error
**errp
)
462 MachineState
*ms
= MACHINE(obj
);
467 static void machine_set_usb(Object
*obj
, bool value
, Error
**errp
)
469 MachineState
*ms
= MACHINE(obj
);
472 ms
->usb_disabled
= !value
;
475 static bool machine_get_graphics(Object
*obj
, Error
**errp
)
477 MachineState
*ms
= MACHINE(obj
);
479 return ms
->enable_graphics
;
482 static void machine_set_graphics(Object
*obj
, bool value
, Error
**errp
)
484 MachineState
*ms
= MACHINE(obj
);
486 ms
->enable_graphics
= value
;
489 static char *machine_get_firmware(Object
*obj
, Error
**errp
)
491 MachineState
*ms
= MACHINE(obj
);
493 return g_strdup(ms
->firmware
);
496 static void machine_set_firmware(Object
*obj
, const char *value
, Error
**errp
)
498 MachineState
*ms
= MACHINE(obj
);
500 g_free(ms
->firmware
);
501 ms
->firmware
= g_strdup(value
);
504 static void machine_set_suppress_vmdesc(Object
*obj
, bool value
, Error
**errp
)
506 MachineState
*ms
= MACHINE(obj
);
508 ms
->suppress_vmdesc
= value
;
511 static bool machine_get_suppress_vmdesc(Object
*obj
, Error
**errp
)
513 MachineState
*ms
= MACHINE(obj
);
515 return ms
->suppress_vmdesc
;
518 static char *machine_get_memory_encryption(Object
*obj
, Error
**errp
)
520 MachineState
*ms
= MACHINE(obj
);
523 return g_strdup(object_get_canonical_path_component(OBJECT(ms
->cgs
)));
529 static void machine_set_memory_encryption(Object
*obj
, const char *value
,
533 object_resolve_path_component(object_get_objects_root(), value
);
536 error_setg(errp
, "No such memory encryption object '%s'", value
);
540 object_property_set_link(obj
, "confidential-guest-support", cgs
, errp
);
543 static void machine_check_confidential_guest_support(const Object
*obj
,
549 * So far the only constraint is that the target has the
550 * TYPE_CONFIDENTIAL_GUEST_SUPPORT interface, and that's checked
555 static bool machine_get_nvdimm(Object
*obj
, Error
**errp
)
557 MachineState
*ms
= MACHINE(obj
);
559 return ms
->nvdimms_state
->is_enabled
;
562 static void machine_set_nvdimm(Object
*obj
, bool value
, Error
**errp
)
564 MachineState
*ms
= MACHINE(obj
);
566 ms
->nvdimms_state
->is_enabled
= value
;
569 static bool machine_get_hmat(Object
*obj
, Error
**errp
)
571 MachineState
*ms
= MACHINE(obj
);
573 return ms
->numa_state
->hmat_enabled
;
576 static void machine_set_hmat(Object
*obj
, bool value
, Error
**errp
)
578 MachineState
*ms
= MACHINE(obj
);
580 ms
->numa_state
->hmat_enabled
= value
;
583 static void machine_get_mem(Object
*obj
, Visitor
*v
, const char *name
,
584 void *opaque
, Error
**errp
)
586 MachineState
*ms
= MACHINE(obj
);
587 MemorySizeConfiguration mem
= {
589 .size
= ms
->ram_size
,
590 .has_max_size
= !!ms
->ram_slots
,
591 .max_size
= ms
->maxram_size
,
592 .has_slots
= !!ms
->ram_slots
,
593 .slots
= ms
->ram_slots
,
595 MemorySizeConfiguration
*p_mem
= &mem
;
597 visit_type_MemorySizeConfiguration(v
, name
, &p_mem
, &error_abort
);
600 static void machine_set_mem(Object
*obj
, Visitor
*v
, const char *name
,
601 void *opaque
, Error
**errp
)
604 MachineState
*ms
= MACHINE(obj
);
605 MachineClass
*mc
= MACHINE_GET_CLASS(obj
);
606 MemorySizeConfiguration
*mem
;
608 if (!visit_type_MemorySizeConfiguration(v
, name
, &mem
, errp
)) {
612 if (!mem
->has_size
) {
613 mem
->has_size
= true;
614 mem
->size
= mc
->default_ram_size
;
616 mem
->size
= QEMU_ALIGN_UP(mem
->size
, 8192);
617 if (mc
->fixup_ram_size
) {
618 mem
->size
= mc
->fixup_ram_size(mem
->size
);
620 if ((ram_addr_t
)mem
->size
!= mem
->size
) {
621 error_setg(errp
, "ram size too large");
625 if (mem
->has_max_size
) {
626 if (mem
->max_size
< mem
->size
) {
627 error_setg(errp
, "invalid value of maxmem: "
628 "maximum memory size (0x%" PRIx64
") must be at least "
629 "the initial memory size (0x%" PRIx64
")",
630 mem
->max_size
, mem
->size
);
633 if (mem
->has_slots
&& mem
->slots
&& mem
->max_size
== mem
->size
) {
634 error_setg(errp
, "invalid value of maxmem: "
635 "memory slots were specified but maximum memory size "
636 "(0x%" PRIx64
") is equal to the initial memory size "
637 "(0x%" PRIx64
")", mem
->max_size
, mem
->size
);
640 ms
->maxram_size
= mem
->max_size
;
642 if (mem
->has_slots
) {
643 error_setg(errp
, "slots specified but no max-size");
646 ms
->maxram_size
= mem
->size
;
648 ms
->ram_size
= mem
->size
;
649 ms
->ram_slots
= mem
->has_slots
? mem
->slots
: 0;
651 qapi_free_MemorySizeConfiguration(mem
);
654 static char *machine_get_nvdimm_persistence(Object
*obj
, Error
**errp
)
656 MachineState
*ms
= MACHINE(obj
);
658 return g_strdup(ms
->nvdimms_state
->persistence_string
);
661 static void machine_set_nvdimm_persistence(Object
*obj
, const char *value
,
664 MachineState
*ms
= MACHINE(obj
);
665 NVDIMMState
*nvdimms_state
= ms
->nvdimms_state
;
667 if (strcmp(value
, "cpu") == 0) {
668 nvdimms_state
->persistence
= 3;
669 } else if (strcmp(value
, "mem-ctrl") == 0) {
670 nvdimms_state
->persistence
= 2;
672 error_setg(errp
, "-machine nvdimm-persistence=%s: unsupported option",
677 g_free(nvdimms_state
->persistence_string
);
678 nvdimms_state
->persistence_string
= g_strdup(value
);
681 void machine_class_allow_dynamic_sysbus_dev(MachineClass
*mc
, const char *type
)
683 QAPI_LIST_PREPEND(mc
->allowed_dynamic_sysbus_devices
, g_strdup(type
));
686 bool device_is_dynamic_sysbus(MachineClass
*mc
, DeviceState
*dev
)
688 Object
*obj
= OBJECT(dev
);
690 if (!object_dynamic_cast(obj
, TYPE_SYS_BUS_DEVICE
)) {
694 return device_type_is_dynamic_sysbus(mc
, object_get_typename(obj
));
697 bool device_type_is_dynamic_sysbus(MachineClass
*mc
, const char *type
)
699 bool allowed
= false;
701 ObjectClass
*klass
= object_class_by_name(type
);
703 for (wl
= mc
->allowed_dynamic_sysbus_devices
;
706 allowed
|= !!object_class_dynamic_cast(klass
, wl
->value
);
712 static char *machine_get_audiodev(Object
*obj
, Error
**errp
)
714 MachineState
*ms
= MACHINE(obj
);
716 return g_strdup(ms
->audiodev
);
719 static void machine_set_audiodev(Object
*obj
, const char *value
,
722 MachineState
*ms
= MACHINE(obj
);
724 if (!audio_state_by_name(value
, errp
)) {
728 g_free(ms
->audiodev
);
729 ms
->audiodev
= g_strdup(value
);
732 HotpluggableCPUList
*machine_query_hotpluggable_cpus(MachineState
*machine
)
735 HotpluggableCPUList
*head
= NULL
;
736 MachineClass
*mc
= MACHINE_GET_CLASS(machine
);
738 /* force board to initialize possible_cpus if it hasn't been done yet */
739 mc
->possible_cpu_arch_ids(machine
);
741 for (i
= 0; i
< machine
->possible_cpus
->len
; i
++) {
743 HotpluggableCPU
*cpu_item
= g_new0(typeof(*cpu_item
), 1);
745 cpu_item
->type
= g_strdup(machine
->possible_cpus
->cpus
[i
].type
);
746 cpu_item
->vcpus_count
= machine
->possible_cpus
->cpus
[i
].vcpus_count
;
747 cpu_item
->props
= g_memdup(&machine
->possible_cpus
->cpus
[i
].props
,
748 sizeof(*cpu_item
->props
));
750 cpu
= machine
->possible_cpus
->cpus
[i
].cpu
;
752 cpu_item
->qom_path
= object_get_canonical_path(OBJECT(cpu
));
754 QAPI_LIST_PREPEND(head
, cpu_item
);
760 * machine_set_cpu_numa_node:
761 * @machine: machine object to modify
762 * @props: specifies which cpu objects to assign to
763 * numa node specified by @props.node_id
764 * @errp: if an error occurs, a pointer to an area to store the error
766 * Associate NUMA node specified by @props.node_id with cpu slots that
767 * match socket/core/thread-ids specified by @props. It's recommended to use
768 * query-hotpluggable-cpus.props values to specify affected cpu slots,
769 * which would lead to exact 1:1 mapping of cpu slots to NUMA node.
771 * However for CLI convenience it's possible to pass in subset of properties,
772 * which would affect all cpu slots that match it.
774 * -smp 4,cores=2,sockets=2 -numa node,nodeid=0 -numa node,nodeid=1 \
775 * -numa cpu,node-id=0,socket_id=0 \
776 * -numa cpu,node-id=1,socket_id=1
777 * will assign all child cores of socket 0 to node 0 and
778 * of socket 1 to node 1.
780 * On attempt of reassigning (already assigned) cpu slot to another NUMA node,
782 * Empty subset is disallowed and function will return with error in this case.
784 void machine_set_cpu_numa_node(MachineState
*machine
,
785 const CpuInstanceProperties
*props
, Error
**errp
)
787 MachineClass
*mc
= MACHINE_GET_CLASS(machine
);
788 NodeInfo
*numa_info
= machine
->numa_state
->nodes
;
792 if (!mc
->possible_cpu_arch_ids
) {
793 error_setg(errp
, "mapping of CPUs to NUMA node is not supported");
797 /* disabling node mapping is not supported, forbid it */
798 assert(props
->has_node_id
);
800 /* force board to initialize possible_cpus if it hasn't been done yet */
801 mc
->possible_cpu_arch_ids(machine
);
803 for (i
= 0; i
< machine
->possible_cpus
->len
; i
++) {
804 CPUArchId
*slot
= &machine
->possible_cpus
->cpus
[i
];
806 /* reject unsupported by board properties */
807 if (props
->has_thread_id
&& !slot
->props
.has_thread_id
) {
808 error_setg(errp
, "thread-id is not supported");
812 if (props
->has_core_id
&& !slot
->props
.has_core_id
) {
813 error_setg(errp
, "core-id is not supported");
817 if (props
->has_module_id
&& !slot
->props
.has_module_id
) {
818 error_setg(errp
, "module-id is not supported");
822 if (props
->has_cluster_id
&& !slot
->props
.has_cluster_id
) {
823 error_setg(errp
, "cluster-id is not supported");
827 if (props
->has_socket_id
&& !slot
->props
.has_socket_id
) {
828 error_setg(errp
, "socket-id is not supported");
832 if (props
->has_die_id
&& !slot
->props
.has_die_id
) {
833 error_setg(errp
, "die-id is not supported");
837 /* skip slots with explicit mismatch */
838 if (props
->has_thread_id
&& props
->thread_id
!= slot
->props
.thread_id
) {
842 if (props
->has_core_id
&& props
->core_id
!= slot
->props
.core_id
) {
846 if (props
->has_module_id
&&
847 props
->module_id
!= slot
->props
.module_id
) {
851 if (props
->has_cluster_id
&&
852 props
->cluster_id
!= slot
->props
.cluster_id
) {
856 if (props
->has_die_id
&& props
->die_id
!= slot
->props
.die_id
) {
860 if (props
->has_socket_id
&& props
->socket_id
!= slot
->props
.socket_id
) {
864 /* reject assignment if slot is already assigned, for compatibility
865 * of legacy cpu_index mapping with SPAPR core based mapping do not
866 * error out if cpu thread and matched core have the same node-id */
867 if (slot
->props
.has_node_id
&&
868 slot
->props
.node_id
!= props
->node_id
) {
869 error_setg(errp
, "CPU is already assigned to node-id: %" PRId64
,
870 slot
->props
.node_id
);
874 /* assign slot to node as it's matched '-numa cpu' key */
876 slot
->props
.node_id
= props
->node_id
;
877 slot
->props
.has_node_id
= props
->has_node_id
;
879 if (machine
->numa_state
->hmat_enabled
) {
880 if ((numa_info
[props
->node_id
].initiator
< MAX_NODES
) &&
881 (props
->node_id
!= numa_info
[props
->node_id
].initiator
)) {
882 error_setg(errp
, "The initiator of CPU NUMA node %" PRId64
883 " should be itself (got %" PRIu16
")",
884 props
->node_id
, numa_info
[props
->node_id
].initiator
);
887 numa_info
[props
->node_id
].has_cpu
= true;
888 numa_info
[props
->node_id
].initiator
= props
->node_id
;
893 error_setg(errp
, "no match found");
897 static void machine_get_smp(Object
*obj
, Visitor
*v
, const char *name
,
898 void *opaque
, Error
**errp
)
900 MachineState
*ms
= MACHINE(obj
);
901 SMPConfiguration
*config
= &(SMPConfiguration
){
902 .has_cpus
= true, .cpus
= ms
->smp
.cpus
,
903 .has_drawers
= true, .drawers
= ms
->smp
.drawers
,
904 .has_books
= true, .books
= ms
->smp
.books
,
905 .has_sockets
= true, .sockets
= ms
->smp
.sockets
,
906 .has_dies
= true, .dies
= ms
->smp
.dies
,
907 .has_clusters
= true, .clusters
= ms
->smp
.clusters
,
908 .has_modules
= true, .modules
= ms
->smp
.modules
,
909 .has_cores
= true, .cores
= ms
->smp
.cores
,
910 .has_threads
= true, .threads
= ms
->smp
.threads
,
911 .has_maxcpus
= true, .maxcpus
= ms
->smp
.max_cpus
,
914 if (!visit_type_SMPConfiguration(v
, name
, &config
, &error_abort
)) {
919 static void machine_set_smp(Object
*obj
, Visitor
*v
, const char *name
,
920 void *opaque
, Error
**errp
)
922 MachineState
*ms
= MACHINE(obj
);
923 g_autoptr(SMPConfiguration
) config
= NULL
;
925 if (!visit_type_SMPConfiguration(v
, name
, &config
, errp
)) {
929 machine_parse_smp_config(ms
, config
, errp
);
932 static void machine_get_boot(Object
*obj
, Visitor
*v
, const char *name
,
933 void *opaque
, Error
**errp
)
935 MachineState
*ms
= MACHINE(obj
);
936 BootConfiguration
*config
= &ms
->boot_config
;
937 visit_type_BootConfiguration(v
, name
, &config
, &error_abort
);
940 static void machine_free_boot_config(MachineState
*ms
)
942 g_free(ms
->boot_config
.order
);
943 g_free(ms
->boot_config
.once
);
944 g_free(ms
->boot_config
.splash
);
947 static void machine_copy_boot_config(MachineState
*ms
, BootConfiguration
*config
)
949 MachineClass
*machine_class
= MACHINE_GET_CLASS(ms
);
951 machine_free_boot_config(ms
);
952 ms
->boot_config
= *config
;
953 if (!config
->order
) {
954 ms
->boot_config
.order
= g_strdup(machine_class
->default_boot_order
);
958 static void machine_set_boot(Object
*obj
, Visitor
*v
, const char *name
,
959 void *opaque
, Error
**errp
)
962 MachineState
*ms
= MACHINE(obj
);
963 BootConfiguration
*config
= NULL
;
965 if (!visit_type_BootConfiguration(v
, name
, &config
, errp
)) {
969 validate_bootdevices(config
->order
, errp
);
975 validate_bootdevices(config
->once
, errp
);
981 machine_copy_boot_config(ms
, config
);
982 /* Strings live in ms->boot_config. */
987 qapi_free_BootConfiguration(config
);
990 void machine_add_audiodev_property(MachineClass
*mc
)
992 ObjectClass
*oc
= OBJECT_CLASS(mc
);
994 object_class_property_add_str(oc
, "audiodev",
995 machine_get_audiodev
,
996 machine_set_audiodev
);
997 object_class_property_set_description(oc
, "audiodev",
998 "Audiodev to use for default machine devices");
1001 static void machine_class_init(ObjectClass
*oc
, void *data
)
1003 MachineClass
*mc
= MACHINE_CLASS(oc
);
1005 /* Default 128 MB as guest ram size */
1006 mc
->default_ram_size
= 128 * MiB
;
1007 mc
->rom_file_has_mr
= true;
1009 * SMBIOS 3.1.0 7.18.5 Memory Device — Extended Size
1010 * use max possible value that could be encoded into
1011 * 'Extended Size' field (2047Tb).
1013 mc
->smbios_memory_device_size
= 2047 * TiB
;
1015 /* numa node memory size aligned on 8MB by default.
1016 * On Linux, each node's border has to be 8MB aligned
1018 mc
->numa_mem_align_shift
= 23;
1020 object_class_property_add_str(oc
, "kernel",
1021 machine_get_kernel
, machine_set_kernel
);
1022 object_class_property_set_description(oc
, "kernel",
1023 "Linux kernel image file");
1025 object_class_property_add_str(oc
, "initrd",
1026 machine_get_initrd
, machine_set_initrd
);
1027 object_class_property_set_description(oc
, "initrd",
1028 "Linux initial ramdisk file");
1030 object_class_property_add_str(oc
, "append",
1031 machine_get_append
, machine_set_append
);
1032 object_class_property_set_description(oc
, "append",
1033 "Linux kernel command line");
1035 object_class_property_add_str(oc
, "dtb",
1036 machine_get_dtb
, machine_set_dtb
);
1037 object_class_property_set_description(oc
, "dtb",
1038 "Linux kernel device tree file");
1040 object_class_property_add_str(oc
, "dumpdtb",
1041 machine_get_dumpdtb
, machine_set_dumpdtb
);
1042 object_class_property_set_description(oc
, "dumpdtb",
1043 "Dump current dtb to a file and quit");
1045 object_class_property_add(oc
, "boot", "BootConfiguration",
1046 machine_get_boot
, machine_set_boot
,
1048 object_class_property_set_description(oc
, "boot",
1049 "Boot configuration");
1051 object_class_property_add(oc
, "smp", "SMPConfiguration",
1052 machine_get_smp
, machine_set_smp
,
1054 object_class_property_set_description(oc
, "smp",
1057 object_class_property_add(oc
, "phandle-start", "int",
1058 machine_get_phandle_start
, machine_set_phandle_start
,
1060 object_class_property_set_description(oc
, "phandle-start",
1061 "The first phandle ID we may generate dynamically");
1063 object_class_property_add_str(oc
, "dt-compatible",
1064 machine_get_dt_compatible
, machine_set_dt_compatible
);
1065 object_class_property_set_description(oc
, "dt-compatible",
1066 "Overrides the \"compatible\" property of the dt root node");
1068 object_class_property_add_bool(oc
, "dump-guest-core",
1069 machine_get_dump_guest_core
, machine_set_dump_guest_core
);
1070 object_class_property_set_description(oc
, "dump-guest-core",
1071 "Include guest memory in a core dump");
1073 object_class_property_add_bool(oc
, "mem-merge",
1074 machine_get_mem_merge
, machine_set_mem_merge
);
1075 object_class_property_set_description(oc
, "mem-merge",
1076 "Enable/disable memory merge support");
1078 object_class_property_add_bool(oc
, "usb",
1079 machine_get_usb
, machine_set_usb
);
1080 object_class_property_set_description(oc
, "usb",
1081 "Set on/off to enable/disable usb");
1083 object_class_property_add_bool(oc
, "graphics",
1084 machine_get_graphics
, machine_set_graphics
);
1085 object_class_property_set_description(oc
, "graphics",
1086 "Set on/off to enable/disable graphics emulation");
1088 object_class_property_add_str(oc
, "firmware",
1089 machine_get_firmware
, machine_set_firmware
);
1090 object_class_property_set_description(oc
, "firmware",
1093 object_class_property_add_bool(oc
, "suppress-vmdesc",
1094 machine_get_suppress_vmdesc
, machine_set_suppress_vmdesc
);
1095 object_class_property_set_description(oc
, "suppress-vmdesc",
1096 "Set on to disable self-describing migration");
1098 object_class_property_add_link(oc
, "confidential-guest-support",
1099 TYPE_CONFIDENTIAL_GUEST_SUPPORT
,
1100 offsetof(MachineState
, cgs
),
1101 machine_check_confidential_guest_support
,
1102 OBJ_PROP_LINK_STRONG
);
1103 object_class_property_set_description(oc
, "confidential-guest-support",
1104 "Set confidential guest scheme to support");
1106 /* For compatibility */
1107 object_class_property_add_str(oc
, "memory-encryption",
1108 machine_get_memory_encryption
, machine_set_memory_encryption
);
1109 object_class_property_set_description(oc
, "memory-encryption",
1110 "Set memory encryption object to use");
1112 object_class_property_add_link(oc
, "memory-backend", TYPE_MEMORY_BACKEND
,
1113 offsetof(MachineState
, memdev
), object_property_allow_set_link
,
1114 OBJ_PROP_LINK_STRONG
);
1115 object_class_property_set_description(oc
, "memory-backend",
1117 "Valid value is ID of hostmem based backend");
1119 object_class_property_add(oc
, "memory", "MemorySizeConfiguration",
1120 machine_get_mem
, machine_set_mem
,
1122 object_class_property_set_description(oc
, "memory",
1123 "Memory size configuration");
1126 static void machine_class_base_init(ObjectClass
*oc
, void *data
)
1128 MachineClass
*mc
= MACHINE_CLASS(oc
);
1129 mc
->max_cpus
= mc
->max_cpus
?: 1;
1130 mc
->min_cpus
= mc
->min_cpus
?: 1;
1131 mc
->default_cpus
= mc
->default_cpus
?: 1;
1133 if (!object_class_is_abstract(oc
)) {
1134 const char *cname
= object_class_get_name(oc
);
1135 assert(g_str_has_suffix(cname
, TYPE_MACHINE_SUFFIX
));
1136 mc
->name
= g_strndup(cname
,
1137 strlen(cname
) - strlen(TYPE_MACHINE_SUFFIX
));
1138 mc
->compat_props
= g_ptr_array_new();
1142 static void machine_initfn(Object
*obj
)
1144 MachineState
*ms
= MACHINE(obj
);
1145 MachineClass
*mc
= MACHINE_GET_CLASS(obj
);
1147 container_get(obj
, "/peripheral");
1148 container_get(obj
, "/peripheral-anon");
1150 ms
->dump_guest_core
= true;
1151 ms
->mem_merge
= (QEMU_MADV_MERGEABLE
!= QEMU_MADV_INVALID
);
1152 ms
->enable_graphics
= true;
1153 ms
->kernel_cmdline
= g_strdup("");
1154 ms
->ram_size
= mc
->default_ram_size
;
1155 ms
->maxram_size
= mc
->default_ram_size
;
1157 if (mc
->nvdimm_supported
) {
1158 ms
->nvdimms_state
= g_new0(NVDIMMState
, 1);
1159 object_property_add_bool(obj
, "nvdimm",
1160 machine_get_nvdimm
, machine_set_nvdimm
);
1161 object_property_set_description(obj
, "nvdimm",
1162 "Set on/off to enable/disable "
1163 "NVDIMM instantiation");
1165 object_property_add_str(obj
, "nvdimm-persistence",
1166 machine_get_nvdimm_persistence
,
1167 machine_set_nvdimm_persistence
);
1168 object_property_set_description(obj
, "nvdimm-persistence",
1169 "Set NVDIMM persistence"
1170 "Valid values are cpu, mem-ctrl");
1173 if (mc
->cpu_index_to_instance_props
&& mc
->get_default_cpu_node_id
) {
1174 ms
->numa_state
= g_new0(NumaState
, 1);
1175 object_property_add_bool(obj
, "hmat",
1176 machine_get_hmat
, machine_set_hmat
);
1177 object_property_set_description(obj
, "hmat",
1178 "Set on/off to enable/disable "
1179 "ACPI Heterogeneous Memory Attribute "
1183 /* default to mc->default_cpus */
1184 ms
->smp
.cpus
= mc
->default_cpus
;
1185 ms
->smp
.max_cpus
= mc
->default_cpus
;
1186 ms
->smp
.drawers
= 1;
1188 ms
->smp
.sockets
= 1;
1190 ms
->smp
.clusters
= 1;
1191 ms
->smp
.modules
= 1;
1193 ms
->smp
.threads
= 1;
1195 machine_copy_boot_config(ms
, &(BootConfiguration
){ 0 });
1198 static void machine_finalize(Object
*obj
)
1200 MachineState
*ms
= MACHINE(obj
);
1202 machine_free_boot_config(ms
);
1203 g_free(ms
->kernel_filename
);
1204 g_free(ms
->initrd_filename
);
1205 g_free(ms
->kernel_cmdline
);
1207 g_free(ms
->dumpdtb
);
1208 g_free(ms
->dt_compatible
);
1209 g_free(ms
->firmware
);
1210 g_free(ms
->device_memory
);
1211 g_free(ms
->nvdimms_state
);
1212 g_free(ms
->numa_state
);
1213 g_free(ms
->audiodev
);
1216 bool machine_usb(MachineState
*machine
)
1218 return machine
->usb
;
1221 int machine_phandle_start(MachineState
*machine
)
1223 return machine
->phandle_start
;
1226 bool machine_dump_guest_core(MachineState
*machine
)
1228 return machine
->dump_guest_core
;
1231 bool machine_mem_merge(MachineState
*machine
)
1233 return machine
->mem_merge
;
1236 bool machine_require_guest_memfd(MachineState
*machine
)
1238 return machine
->cgs
&& machine
->cgs
->require_guest_memfd
;
1241 static char *cpu_slot_to_string(const CPUArchId
*cpu
)
1243 GString
*s
= g_string_new(NULL
);
1244 if (cpu
->props
.has_socket_id
) {
1245 g_string_append_printf(s
, "socket-id: %"PRId64
, cpu
->props
.socket_id
);
1247 if (cpu
->props
.has_die_id
) {
1249 g_string_append_printf(s
, ", ");
1251 g_string_append_printf(s
, "die-id: %"PRId64
, cpu
->props
.die_id
);
1253 if (cpu
->props
.has_cluster_id
) {
1255 g_string_append_printf(s
, ", ");
1257 g_string_append_printf(s
, "cluster-id: %"PRId64
, cpu
->props
.cluster_id
);
1259 if (cpu
->props
.has_module_id
) {
1261 g_string_append_printf(s
, ", ");
1263 g_string_append_printf(s
, "module-id: %"PRId64
, cpu
->props
.module_id
);
1265 if (cpu
->props
.has_core_id
) {
1267 g_string_append_printf(s
, ", ");
1269 g_string_append_printf(s
, "core-id: %"PRId64
, cpu
->props
.core_id
);
1271 if (cpu
->props
.has_thread_id
) {
1273 g_string_append_printf(s
, ", ");
1275 g_string_append_printf(s
, "thread-id: %"PRId64
, cpu
->props
.thread_id
);
1277 return g_string_free(s
, false);
1280 static void numa_validate_initiator(NumaState
*numa_state
)
1283 NodeInfo
*numa_info
= numa_state
->nodes
;
1285 for (i
= 0; i
< numa_state
->num_nodes
; i
++) {
1286 if (numa_info
[i
].initiator
== MAX_NODES
) {
1290 if (!numa_info
[numa_info
[i
].initiator
].present
) {
1291 error_report("NUMA node %" PRIu16
" is missing, use "
1292 "'-numa node' option to declare it first",
1293 numa_info
[i
].initiator
);
1297 if (!numa_info
[numa_info
[i
].initiator
].has_cpu
) {
1298 error_report("The initiator of NUMA node %d is invalid", i
);
1304 static void machine_numa_finish_cpu_init(MachineState
*machine
)
1307 bool default_mapping
;
1308 GString
*s
= g_string_new(NULL
);
1309 MachineClass
*mc
= MACHINE_GET_CLASS(machine
);
1310 const CPUArchIdList
*possible_cpus
= mc
->possible_cpu_arch_ids(machine
);
1312 assert(machine
->numa_state
->num_nodes
);
1313 for (i
= 0; i
< possible_cpus
->len
; i
++) {
1314 if (possible_cpus
->cpus
[i
].props
.has_node_id
) {
1318 default_mapping
= (i
== possible_cpus
->len
);
1320 for (i
= 0; i
< possible_cpus
->len
; i
++) {
1321 const CPUArchId
*cpu_slot
= &possible_cpus
->cpus
[i
];
1323 if (!cpu_slot
->props
.has_node_id
) {
1324 /* fetch default mapping from board and enable it */
1325 CpuInstanceProperties props
= cpu_slot
->props
;
1327 props
.node_id
= mc
->get_default_cpu_node_id(machine
, i
);
1328 if (!default_mapping
) {
1329 /* record slots with not set mapping,
1330 * TODO: make it hard error in future */
1331 char *cpu_str
= cpu_slot_to_string(cpu_slot
);
1332 g_string_append_printf(s
, "%sCPU %d [%s]",
1333 s
->len
? ", " : "", i
, cpu_str
);
1336 /* non mapped cpus used to fallback to node 0 */
1340 props
.has_node_id
= true;
1341 machine_set_cpu_numa_node(machine
, &props
, &error_fatal
);
1345 if (machine
->numa_state
->hmat_enabled
) {
1346 numa_validate_initiator(machine
->numa_state
);
1349 if (s
->len
&& !qtest_enabled()) {
1350 warn_report("CPU(s) not present in any NUMA nodes: %s",
1352 warn_report("All CPU(s) up to maxcpus should be described "
1353 "in NUMA config, ability to start up with partial NUMA "
1354 "mappings is obsoleted and will be removed in future");
1356 g_string_free(s
, true);
1359 static void validate_cpu_cluster_to_numa_boundary(MachineState
*ms
)
1361 MachineClass
*mc
= MACHINE_GET_CLASS(ms
);
1362 NumaState
*state
= ms
->numa_state
;
1363 const CPUArchIdList
*possible_cpus
= mc
->possible_cpu_arch_ids(ms
);
1364 const CPUArchId
*cpus
= possible_cpus
->cpus
;
1367 if (qtest_enabled() || state
->num_nodes
<= 1 || possible_cpus
->len
<= 1) {
1372 * The Linux scheduling domain can't be parsed when the multiple CPUs
1373 * in one cluster have been associated with different NUMA nodes. However,
1374 * it's fine to associate one NUMA node with CPUs in different clusters.
1376 for (i
= 0; i
< possible_cpus
->len
; i
++) {
1377 for (j
= i
+ 1; j
< possible_cpus
->len
; j
++) {
1378 if (cpus
[i
].props
.has_socket_id
&&
1379 cpus
[i
].props
.has_cluster_id
&&
1380 cpus
[i
].props
.has_node_id
&&
1381 cpus
[j
].props
.has_socket_id
&&
1382 cpus
[j
].props
.has_cluster_id
&&
1383 cpus
[j
].props
.has_node_id
&&
1384 cpus
[i
].props
.socket_id
== cpus
[j
].props
.socket_id
&&
1385 cpus
[i
].props
.cluster_id
== cpus
[j
].props
.cluster_id
&&
1386 cpus
[i
].props
.node_id
!= cpus
[j
].props
.node_id
) {
1387 warn_report("CPU-%d and CPU-%d in socket-%" PRId64
"-cluster-%" PRId64
1388 " have been associated with node-%" PRId64
" and node-%" PRId64
1389 " respectively. It can cause OSes like Linux to"
1390 " misbehave", i
, j
, cpus
[i
].props
.socket_id
,
1391 cpus
[i
].props
.cluster_id
, cpus
[i
].props
.node_id
,
1392 cpus
[j
].props
.node_id
);
1398 MemoryRegion
*machine_consume_memdev(MachineState
*machine
,
1399 HostMemoryBackend
*backend
)
1401 MemoryRegion
*ret
= host_memory_backend_get_memory(backend
);
1403 if (host_memory_backend_is_mapped(backend
)) {
1404 error_report("memory backend %s can't be used multiple times.",
1405 object_get_canonical_path_component(OBJECT(backend
)));
1408 host_memory_backend_set_mapped(backend
, true);
1409 vmstate_register_ram_global(ret
);
1413 static bool create_default_memdev(MachineState
*ms
, const char *path
, Error
**errp
)
1416 MachineClass
*mc
= MACHINE_GET_CLASS(ms
);
1419 obj
= object_new(path
? TYPE_MEMORY_BACKEND_FILE
: TYPE_MEMORY_BACKEND_RAM
);
1421 if (!object_property_set_str(obj
, "mem-path", path
, errp
)) {
1425 if (!object_property_set_int(obj
, "size", ms
->ram_size
, errp
)) {
1428 object_property_add_child(object_get_objects_root(), mc
->default_ram_id
,
1430 /* Ensure backend's memory region name is equal to mc->default_ram_id */
1431 if (!object_property_set_bool(obj
, "x-use-canonical-path-for-ramblock-id",
1435 if (!user_creatable_complete(USER_CREATABLE(obj
), errp
)) {
1438 r
= object_property_set_link(OBJECT(ms
), "memory-backend", obj
, errp
);
1445 const char *machine_class_default_cpu_type(MachineClass
*mc
)
1447 if (mc
->valid_cpu_types
&& !mc
->valid_cpu_types
[1]) {
1448 /* Only a single CPU type allowed: use it as default. */
1449 return mc
->valid_cpu_types
[0];
1451 return mc
->default_cpu_type
;
1454 static bool is_cpu_type_supported(const MachineState
*machine
, Error
**errp
)
1456 MachineClass
*mc
= MACHINE_GET_CLASS(machine
);
1457 ObjectClass
*oc
= object_class_by_name(machine
->cpu_type
);
1462 * Check if the user specified CPU type is supported when the valid
1463 * CPU types have been determined. Note that the user specified CPU
1464 * type is provided through '-cpu' option.
1466 if (mc
->valid_cpu_types
) {
1467 assert(mc
->valid_cpu_types
[0] != NULL
);
1468 for (i
= 0; mc
->valid_cpu_types
[i
]; i
++) {
1469 if (object_class_dynamic_cast(oc
, mc
->valid_cpu_types
[i
])) {
1474 /* The user specified CPU type isn't valid */
1475 if (!mc
->valid_cpu_types
[i
]) {
1476 g_autofree
char *requested
= cpu_model_from_type(machine
->cpu_type
);
1477 error_setg(errp
, "Invalid CPU model: %s", requested
);
1478 if (!mc
->valid_cpu_types
[1]) {
1479 g_autofree
char *model
= cpu_model_from_type(
1480 mc
->valid_cpu_types
[0]);
1481 error_append_hint(errp
, "The only valid type is: %s\n", model
);
1483 error_append_hint(errp
, "The valid models are: ");
1484 for (i
= 0; mc
->valid_cpu_types
[i
]; i
++) {
1485 g_autofree
char *model
= cpu_model_from_type(
1486 mc
->valid_cpu_types
[i
]);
1487 error_append_hint(errp
, "%s%s",
1489 mc
->valid_cpu_types
[i
+ 1] ? ", " : "");
1491 error_append_hint(errp
, "\n");
1498 /* Check if CPU type is deprecated and warn if so */
1501 if (cc
->deprecation_note
) {
1502 warn_report("CPU model %s is deprecated -- %s",
1503 machine
->cpu_type
, cc
->deprecation_note
);
1509 void machine_run_board_init(MachineState
*machine
, const char *mem_path
, Error
**errp
)
1512 MachineClass
*machine_class
= MACHINE_GET_CLASS(machine
);
1514 /* This checkpoint is required by replay to separate prior clock
1515 reading from the other reads, because timer polling functions query
1516 clock values from the log. */
1517 replay_checkpoint(CHECKPOINT_INIT
);
1519 if (!xen_enabled()) {
1520 /* On 32-bit hosts, QEMU is limited by virtual address space */
1521 if (machine
->ram_size
> (2047 << 20) && HOST_LONG_BITS
== 32) {
1522 error_setg(errp
, "at most 2047 MB RAM can be simulated");
1527 if (machine
->memdev
) {
1528 ram_addr_t backend_size
= object_property_get_uint(OBJECT(machine
->memdev
),
1529 "size", &error_abort
);
1530 if (backend_size
!= machine
->ram_size
) {
1531 error_setg(errp
, "Machine memory size does not match the size of the memory backend");
1534 } else if (machine_class
->default_ram_id
&& machine
->ram_size
&&
1535 numa_uses_legacy_mem()) {
1536 if (object_property_find(object_get_objects_root(),
1537 machine_class
->default_ram_id
)) {
1538 error_setg(errp
, "object's id '%s' is reserved for the default"
1539 " RAM backend, it can't be used for any other purposes",
1540 machine_class
->default_ram_id
);
1541 error_append_hint(errp
,
1542 "Change the object's 'id' to something else or disable"
1543 " automatic creation of the default RAM backend by setting"
1544 " 'memory-backend=%s' with '-machine'.\n",
1545 machine_class
->default_ram_id
);
1548 if (!create_default_memdev(current_machine
, mem_path
, errp
)) {
1553 if (machine
->numa_state
) {
1554 numa_complete_configuration(machine
);
1555 if (machine
->numa_state
->num_nodes
) {
1556 machine_numa_finish_cpu_init(machine
);
1557 if (machine_class
->cpu_cluster_has_numa_boundary
) {
1558 validate_cpu_cluster_to_numa_boundary(machine
);
1563 if (!machine
->ram
&& machine
->memdev
) {
1564 machine
->ram
= machine_consume_memdev(machine
, machine
->memdev
);
1567 /* Check if the CPU type is supported */
1568 if (machine
->cpu_type
&& !is_cpu_type_supported(machine
, errp
)) {
1574 * With confidential guests, the host can't see the real
1575 * contents of RAM, so there's no point in it trying to merge
1578 machine_set_mem_merge(OBJECT(machine
), false, &error_abort
);
1581 * Virtio devices can't count on directly accessing guest
1582 * memory, so they need iommu_platform=on to use normal DMA
1583 * mechanisms. That requires also disabling legacy virtio
1584 * support for those virtio pci devices which allow it.
1586 object_register_sugar_prop(TYPE_VIRTIO_PCI
, "disable-legacy",
1588 object_register_sugar_prop(TYPE_VIRTIO_DEVICE
, "iommu_platform",
1592 accel_init_interfaces(ACCEL_GET_CLASS(machine
->accelerator
));
1593 machine_class
->init(machine
);
1594 phase_advance(PHASE_MACHINE_INITIALIZED
);
1597 static NotifierList machine_init_done_notifiers
=
1598 NOTIFIER_LIST_INITIALIZER(machine_init_done_notifiers
);
1600 void qemu_add_machine_init_done_notifier(Notifier
*notify
)
1602 notifier_list_add(&machine_init_done_notifiers
, notify
);
1603 if (phase_check(PHASE_MACHINE_READY
)) {
1604 notify
->notify(notify
, NULL
);
1608 void qemu_remove_machine_init_done_notifier(Notifier
*notify
)
1610 notifier_remove(notify
);
1613 void qdev_machine_creation_done(void)
1615 cpu_synchronize_all_post_init();
1617 if (current_machine
->boot_config
.once
) {
1618 qemu_boot_set(current_machine
->boot_config
.once
, &error_fatal
);
1619 qemu_register_reset(restore_boot_order
, g_strdup(current_machine
->boot_config
.order
));
1623 * ok, initial machine setup is done, starting from now we can
1624 * only create hotpluggable devices
1626 phase_advance(PHASE_MACHINE_READY
);
1627 qdev_assert_realized_properly();
1629 /* TODO: once all bus devices are qdevified, this should be done
1630 * when bus is created by qdev.c */
1632 * This is where we arrange for the sysbus to be reset when the
1633 * whole simulation is reset. In turn, resetting the sysbus will cause
1634 * all devices hanging off it (and all their child buses, recursively)
1635 * to be reset. Note that this will *not* reset any Device objects
1636 * which are not attached to some part of the qbus tree!
1638 qemu_register_resettable(OBJECT(sysbus_get_default()));
1640 notifier_list_notify(&machine_init_done_notifiers
, NULL
);
1642 if (rom_check_and_register_reset() != 0) {
1648 /* This checkpoint is required by replay to separate prior clock
1649 reading from the other reads, because timer polling functions query
1650 clock values from the log. */
1651 replay_checkpoint(CHECKPOINT_RESET
);
1652 qemu_system_reset(SHUTDOWN_CAUSE_NONE
);
1653 register_global_state();
1656 static const TypeInfo machine_info
= {
1657 .name
= TYPE_MACHINE
,
1658 .parent
= TYPE_OBJECT
,
1660 .class_size
= sizeof(MachineClass
),
1661 .class_init
= machine_class_init
,
1662 .class_base_init
= machine_class_base_init
,
1663 .instance_size
= sizeof(MachineState
),
1664 .instance_init
= machine_initfn
,
1665 .instance_finalize
= machine_finalize
,
1668 static void machine_register_types(void)
1670 type_register_static(&machine_info
);
1673 type_init(machine_register_types
)