xref: /openbmc/qemu/hw/i386/pc_q35.c (revision 1580b897)
1 /*
2  * Q35 chipset based pc system emulator
3  *
4  * Copyright (c) 2003-2004 Fabrice Bellard
5  * Copyright (c) 2009, 2010
6  *               Isaku Yamahata <yamahata at valinux co jp>
7  *               VA Linux Systems Japan K.K.
8  * Copyright (C) 2012 Jason Baron <jbaron@redhat.com>
9  *
10  * This is based on pc.c, but heavily modified.
11  *
12  * Permission is hereby granted, free of charge, to any person obtaining a copy
13  * of this software and associated documentation files (the "Software"), to deal
14  * in the Software without restriction, including without limitation the rights
15  * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
16  * copies of the Software, and to permit persons to whom the Software is
17  * furnished to do so, subject to the following conditions:
18  *
19  * The above copyright notice and this permission notice shall be included in
20  * all copies or substantial portions of the Software.
21  *
22  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
23  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
24  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
25  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
26  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
27  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
28  * THE SOFTWARE.
29  */
30 
31 #include "qemu/osdep.h"
32 #include "qemu/units.h"
33 #include "hw/loader.h"
34 #include "sysemu/arch_init.h"
35 #include "hw/i2c/smbus_eeprom.h"
36 #include "hw/rtc/mc146818rtc.h"
37 #include "sysemu/kvm.h"
38 #include "hw/kvm/clock.h"
39 #include "hw/pci-host/q35.h"
40 #include "hw/pci/pcie_port.h"
41 #include "hw/qdev-properties.h"
42 #include "hw/i386/x86.h"
43 #include "hw/i386/pc.h"
44 #include "hw/i386/ich9.h"
45 #include "hw/i386/amd_iommu.h"
46 #include "hw/i386/intel_iommu.h"
47 #include "hw/display/ramfb.h"
48 #include "hw/firmware/smbios.h"
49 #include "hw/ide/pci.h"
50 #include "hw/ide/ahci.h"
51 #include "hw/usb.h"
52 #include "qapi/error.h"
53 #include "qemu/error-report.h"
54 #include "sysemu/numa.h"
55 #include "hw/hyperv/vmbus-bridge.h"
56 #include "hw/mem/nvdimm.h"
57 #include "hw/i386/acpi-build.h"
58 
59 /* ICH9 AHCI has 6 ports */
60 #define MAX_SATA_PORTS     6
61 
62 struct ehci_companions {
63     const char *name;
64     int func;
65     int port;
66 };
67 
68 static const struct ehci_companions ich9_1d[] = {
69     { .name = "ich9-usb-uhci1", .func = 0, .port = 0 },
70     { .name = "ich9-usb-uhci2", .func = 1, .port = 2 },
71     { .name = "ich9-usb-uhci3", .func = 2, .port = 4 },
72 };
73 
74 static const struct ehci_companions ich9_1a[] = {
75     { .name = "ich9-usb-uhci4", .func = 0, .port = 0 },
76     { .name = "ich9-usb-uhci5", .func = 1, .port = 2 },
77     { .name = "ich9-usb-uhci6", .func = 2, .port = 4 },
78 };
79 
80 static int ehci_create_ich9_with_companions(PCIBus *bus, int slot)
81 {
82     const struct ehci_companions *comp;
83     PCIDevice *ehci, *uhci;
84     BusState *usbbus;
85     const char *name;
86     int i;
87 
88     switch (slot) {
89     case 0x1d:
90         name = "ich9-usb-ehci1";
91         comp = ich9_1d;
92         break;
93     case 0x1a:
94         name = "ich9-usb-ehci2";
95         comp = ich9_1a;
96         break;
97     default:
98         return -1;
99     }
100 
101     ehci = pci_new_multifunction(PCI_DEVFN(slot, 7), true, name);
102     pci_realize_and_unref(ehci, bus, &error_fatal);
103     usbbus = QLIST_FIRST(&ehci->qdev.child_bus);
104 
105     for (i = 0; i < 3; i++) {
106         uhci = pci_new_multifunction(PCI_DEVFN(slot, comp[i].func), true,
107                                      comp[i].name);
108         qdev_prop_set_string(&uhci->qdev, "masterbus", usbbus->name);
109         qdev_prop_set_uint32(&uhci->qdev, "firstport", comp[i].port);
110         pci_realize_and_unref(uhci, bus, &error_fatal);
111     }
112     return 0;
113 }
114 
115 /* PC hardware initialisation */
116 static void pc_q35_init(MachineState *machine)
117 {
118     PCMachineState *pcms = PC_MACHINE(machine);
119     PCMachineClass *pcmc = PC_MACHINE_GET_CLASS(pcms);
120     X86MachineState *x86ms = X86_MACHINE(machine);
121     Q35PCIHost *q35_host;
122     PCIHostState *phb;
123     PCIBus *host_bus;
124     PCIDevice *lpc;
125     DeviceState *lpc_dev;
126     BusState *idebus[MAX_SATA_PORTS];
127     ISADevice *rtc_state;
128     MemoryRegion *system_io = get_system_io();
129     MemoryRegion *pci_memory;
130     MemoryRegion *rom_memory;
131     MemoryRegion *ram_memory;
132     GSIState *gsi_state;
133     ISABus *isa_bus;
134     int i;
135     ICH9LPCState *ich9_lpc;
136     PCIDevice *ahci;
137     ram_addr_t lowmem;
138     DriveInfo *hd[MAX_SATA_PORTS];
139     MachineClass *mc = MACHINE_GET_CLASS(machine);
140     bool acpi_pcihp;
141 
142     /* Check whether RAM fits below 4G (leaving 1/2 GByte for IO memory
143      * and 256 Mbytes for PCI Express Enhanced Configuration Access Mapping
144      * also known as MMCFG).
145      * If it doesn't, we need to split it in chunks below and above 4G.
146      * In any case, try to make sure that guest addresses aligned at
147      * 1G boundaries get mapped to host addresses aligned at 1G boundaries.
148      */
149     if (machine->ram_size >= 0xb0000000) {
150         lowmem = 0x80000000;
151     } else {
152         lowmem = 0xb0000000;
153     }
154 
155     /* Handle the machine opt max-ram-below-4g.  It is basically doing
156      * min(qemu limit, user limit).
157      */
158     if (!pcms->max_ram_below_4g) {
159         pcms->max_ram_below_4g = 4 * GiB;
160     }
161     if (lowmem > pcms->max_ram_below_4g) {
162         lowmem = pcms->max_ram_below_4g;
163         if (machine->ram_size - lowmem > lowmem &&
164             lowmem & (1 * GiB - 1)) {
165             warn_report("There is possibly poor performance as the ram size "
166                         " (0x%" PRIx64 ") is more then twice the size of"
167                         " max-ram-below-4g (%"PRIu64") and"
168                         " max-ram-below-4g is not a multiple of 1G.",
169                         (uint64_t)machine->ram_size, pcms->max_ram_below_4g);
170         }
171     }
172 
173     if (machine->ram_size >= lowmem) {
174         x86ms->above_4g_mem_size = machine->ram_size - lowmem;
175         x86ms->below_4g_mem_size = lowmem;
176     } else {
177         x86ms->above_4g_mem_size = 0;
178         x86ms->below_4g_mem_size = machine->ram_size;
179     }
180 
181     x86_cpus_init(x86ms, pcmc->default_cpu_version);
182 
183     kvmclock_create(pcmc->kvmclock_create_always);
184 
185     /* pci enabled */
186     if (pcmc->pci_enabled) {
187         pci_memory = g_new(MemoryRegion, 1);
188         memory_region_init(pci_memory, NULL, "pci", UINT64_MAX);
189         rom_memory = pci_memory;
190     } else {
191         pci_memory = NULL;
192         rom_memory = get_system_memory();
193     }
194 
195     pc_guest_info_init(pcms);
196 
197     if (pcmc->smbios_defaults) {
198         /* These values are guest ABI, do not change */
199         smbios_set_defaults("QEMU", "Standard PC (Q35 + ICH9, 2009)",
200                             mc->name, pcmc->smbios_legacy_mode,
201                             pcmc->smbios_uuid_encoded,
202                             SMBIOS_ENTRY_POINT_21);
203     }
204 
205     /* allocate ram and load rom/bios */
206     pc_memory_init(pcms, get_system_memory(), rom_memory, &ram_memory);
207 
208     /* create pci host bus */
209     q35_host = Q35_HOST_DEVICE(qdev_new(TYPE_Q35_HOST_DEVICE));
210 
211     object_property_add_child(qdev_get_machine(), "q35", OBJECT(q35_host));
212     object_property_set_link(OBJECT(q35_host), MCH_HOST_PROP_RAM_MEM,
213                              OBJECT(ram_memory), NULL);
214     object_property_set_link(OBJECT(q35_host), MCH_HOST_PROP_PCI_MEM,
215                              OBJECT(pci_memory), NULL);
216     object_property_set_link(OBJECT(q35_host), MCH_HOST_PROP_SYSTEM_MEM,
217                              OBJECT(get_system_memory()), NULL);
218     object_property_set_link(OBJECT(q35_host), MCH_HOST_PROP_IO_MEM,
219                              OBJECT(system_io), NULL);
220     object_property_set_int(OBJECT(q35_host), PCI_HOST_BELOW_4G_MEM_SIZE,
221                             x86ms->below_4g_mem_size, NULL);
222     object_property_set_int(OBJECT(q35_host), PCI_HOST_ABOVE_4G_MEM_SIZE,
223                             x86ms->above_4g_mem_size, NULL);
224     /* pci */
225     sysbus_realize_and_unref(SYS_BUS_DEVICE(q35_host), &error_fatal);
226     phb = PCI_HOST_BRIDGE(q35_host);
227     host_bus = phb->bus;
228     /* create ISA bus */
229     lpc = pci_create_simple_multifunction(host_bus, PCI_DEVFN(ICH9_LPC_DEV,
230                                           ICH9_LPC_FUNC), true,
231                                           TYPE_ICH9_LPC_DEVICE);
232 
233     object_property_add_link(OBJECT(machine), PC_MACHINE_ACPI_DEVICE_PROP,
234                              TYPE_HOTPLUG_HANDLER,
235                              (Object **)&x86ms->acpi_dev,
236                              object_property_allow_set_link,
237                              OBJ_PROP_LINK_STRONG);
238     object_property_set_link(OBJECT(machine), PC_MACHINE_ACPI_DEVICE_PROP,
239                              OBJECT(lpc), &error_abort);
240 
241     acpi_pcihp = object_property_get_bool(OBJECT(lpc),
242                                           "acpi-pci-hotplug-with-bridge-support",
243                                           NULL);
244 
245     if (acpi_pcihp) {
246         object_register_sugar_prop(TYPE_PCIE_SLOT, "native-hotplug",
247                                    "false", true);
248     }
249 
250     /* irq lines */
251     gsi_state = pc_gsi_create(&x86ms->gsi, pcmc->pci_enabled);
252 
253     ich9_lpc = ICH9_LPC_DEVICE(lpc);
254     lpc_dev = DEVICE(lpc);
255     for (i = 0; i < GSI_NUM_PINS; i++) {
256         qdev_connect_gpio_out_named(lpc_dev, ICH9_GPIO_GSI, i, x86ms->gsi[i]);
257     }
258     pci_bus_irqs(host_bus, ich9_lpc_set_irq, ich9_lpc_map_irq, ich9_lpc,
259                  ICH9_LPC_NB_PIRQS);
260     pci_bus_set_route_irq_fn(host_bus, ich9_route_intx_pin_to_irq);
261     isa_bus = ich9_lpc->isa_bus;
262 
263     pc_i8259_create(isa_bus, gsi_state->i8259_irq);
264 
265     if (pcmc->pci_enabled) {
266         ioapic_init_gsi(gsi_state, "q35");
267     }
268 
269     if (tcg_enabled()) {
270         x86_register_ferr_irq(x86ms->gsi[13]);
271     }
272 
273     assert(pcms->vmport != ON_OFF_AUTO__MAX);
274     if (pcms->vmport == ON_OFF_AUTO_AUTO) {
275         pcms->vmport = ON_OFF_AUTO_ON;
276     }
277 
278     /* init basic PC hardware */
279     pc_basic_device_init(pcms, isa_bus, x86ms->gsi, &rtc_state, !mc->no_floppy,
280                          0xff0104);
281 
282     /* connect pm stuff to lpc */
283     ich9_lpc_pm_init(lpc, x86_machine_is_smm_enabled(x86ms));
284 
285     if (pcms->sata_enabled) {
286         /* ahci and SATA device, for q35 1 ahci controller is built-in */
287         ahci = pci_create_simple_multifunction(host_bus,
288                                                PCI_DEVFN(ICH9_SATA1_DEV,
289                                                          ICH9_SATA1_FUNC),
290                                                true, "ich9-ahci");
291         idebus[0] = qdev_get_child_bus(&ahci->qdev, "ide.0");
292         idebus[1] = qdev_get_child_bus(&ahci->qdev, "ide.1");
293         g_assert(MAX_SATA_PORTS == ahci_get_num_ports(ahci));
294         ide_drive_get(hd, ahci_get_num_ports(ahci));
295         ahci_ide_create_devs(ahci, hd);
296     } else {
297         idebus[0] = idebus[1] = NULL;
298     }
299 
300     if (machine_usb(machine)) {
301         /* Should we create 6 UHCI according to ich9 spec? */
302         ehci_create_ich9_with_companions(host_bus, 0x1d);
303     }
304 
305     if (pcms->smbus_enabled) {
306         /* TODO: Populate SPD eeprom data.  */
307         pcms->smbus = ich9_smb_init(host_bus,
308                                     PCI_DEVFN(ICH9_SMB_DEV, ICH9_SMB_FUNC),
309                                     0xb100);
310         smbus_eeprom_init(pcms->smbus, 8, NULL, 0);
311     }
312 
313     pc_cmos_init(pcms, idebus[0], idebus[1], rtc_state);
314 
315     /* the rest devices to which pci devfn is automatically assigned */
316     pc_vga_init(isa_bus, host_bus);
317     pc_nic_init(pcmc, isa_bus, host_bus);
318 
319     if (machine->nvdimms_state->is_enabled) {
320         nvdimm_init_acpi_state(machine->nvdimms_state, system_io,
321                                x86_nvdimm_acpi_dsmio,
322                                x86ms->fw_cfg, OBJECT(pcms));
323     }
324 }
325 
326 #define DEFINE_Q35_MACHINE(suffix, name, compatfn, optionfn) \
327     static void pc_init_##suffix(MachineState *machine) \
328     { \
329         void (*compat)(MachineState *m) = (compatfn); \
330         if (compat) { \
331             compat(machine); \
332         } \
333         pc_q35_init(machine); \
334     } \
335     DEFINE_PC_MACHINE(suffix, name, pc_init_##suffix, optionfn)
336 
337 
338 static void pc_q35_machine_options(MachineClass *m)
339 {
340     PCMachineClass *pcmc = PC_MACHINE_CLASS(m);
341     pcmc->default_nic_model = "e1000e";
342     pcmc->pci_root_uid = 0;
343 
344     m->family = "pc_q35";
345     m->desc = "Standard PC (Q35 + ICH9, 2009)";
346     m->units_per_default_bus = 1;
347     m->default_machine_opts = "firmware=bios-256k.bin";
348     m->default_display = "std";
349     m->default_kernel_irqchip_split = false;
350     m->no_floppy = 1;
351     machine_class_allow_dynamic_sysbus_dev(m, TYPE_AMD_IOMMU_DEVICE);
352     machine_class_allow_dynamic_sysbus_dev(m, TYPE_INTEL_IOMMU_DEVICE);
353     machine_class_allow_dynamic_sysbus_dev(m, TYPE_RAMFB_DEVICE);
354     machine_class_allow_dynamic_sysbus_dev(m, TYPE_VMBUS_BRIDGE);
355     m->max_cpus = 288;
356 }
357 
358 static void pc_q35_6_1_machine_options(MachineClass *m)
359 {
360     PCMachineClass *pcmc = PC_MACHINE_CLASS(m);
361     pc_q35_machine_options(m);
362     m->alias = "q35";
363     pcmc->default_cpu_version = 1;
364 }
365 
366 DEFINE_Q35_MACHINE(v6_1, "pc-q35-6.1", NULL,
367                    pc_q35_6_1_machine_options);
368 
369 static void pc_q35_6_0_machine_options(MachineClass *m)
370 {
371     pc_q35_6_1_machine_options(m);
372     m->alias = NULL;
373     compat_props_add(m->compat_props, hw_compat_6_0, hw_compat_6_0_len);
374     compat_props_add(m->compat_props, pc_compat_6_0, pc_compat_6_0_len);
375 }
376 
377 DEFINE_Q35_MACHINE(v6_0, "pc-q35-6.0", NULL,
378                    pc_q35_6_0_machine_options);
379 
380 static void pc_q35_5_2_machine_options(MachineClass *m)
381 {
382     pc_q35_6_0_machine_options(m);
383     m->alias = NULL;
384     compat_props_add(m->compat_props, hw_compat_5_2, hw_compat_5_2_len);
385     compat_props_add(m->compat_props, pc_compat_5_2, pc_compat_5_2_len);
386 }
387 
388 DEFINE_Q35_MACHINE(v5_2, "pc-q35-5.2", NULL,
389                    pc_q35_5_2_machine_options);
390 
391 static void pc_q35_5_1_machine_options(MachineClass *m)
392 {
393     PCMachineClass *pcmc = PC_MACHINE_CLASS(m);
394 
395     pc_q35_5_2_machine_options(m);
396     m->alias = NULL;
397     compat_props_add(m->compat_props, hw_compat_5_1, hw_compat_5_1_len);
398     compat_props_add(m->compat_props, pc_compat_5_1, pc_compat_5_1_len);
399     pcmc->kvmclock_create_always = false;
400     pcmc->pci_root_uid = 1;
401 }
402 
403 DEFINE_Q35_MACHINE(v5_1, "pc-q35-5.1", NULL,
404                    pc_q35_5_1_machine_options);
405 
406 static void pc_q35_5_0_machine_options(MachineClass *m)
407 {
408     pc_q35_5_1_machine_options(m);
409     m->alias = NULL;
410     m->numa_mem_supported = true;
411     compat_props_add(m->compat_props, hw_compat_5_0, hw_compat_5_0_len);
412     compat_props_add(m->compat_props, pc_compat_5_0, pc_compat_5_0_len);
413     m->auto_enable_numa_with_memdev = false;
414 }
415 
416 DEFINE_Q35_MACHINE(v5_0, "pc-q35-5.0", NULL,
417                    pc_q35_5_0_machine_options);
418 
419 static void pc_q35_4_2_machine_options(MachineClass *m)
420 {
421     pc_q35_5_0_machine_options(m);
422     m->alias = NULL;
423     compat_props_add(m->compat_props, hw_compat_4_2, hw_compat_4_2_len);
424     compat_props_add(m->compat_props, pc_compat_4_2, pc_compat_4_2_len);
425 }
426 
427 DEFINE_Q35_MACHINE(v4_2, "pc-q35-4.2", NULL,
428                    pc_q35_4_2_machine_options);
429 
430 static void pc_q35_4_1_machine_options(MachineClass *m)
431 {
432     pc_q35_4_2_machine_options(m);
433     m->alias = NULL;
434     compat_props_add(m->compat_props, hw_compat_4_1, hw_compat_4_1_len);
435     compat_props_add(m->compat_props, pc_compat_4_1, pc_compat_4_1_len);
436 }
437 
438 DEFINE_Q35_MACHINE(v4_1, "pc-q35-4.1", NULL,
439                    pc_q35_4_1_machine_options);
440 
441 static void pc_q35_4_0_1_machine_options(MachineClass *m)
442 {
443     PCMachineClass *pcmc = PC_MACHINE_CLASS(m);
444     pc_q35_4_1_machine_options(m);
445     m->alias = NULL;
446     pcmc->default_cpu_version = CPU_VERSION_LEGACY;
447     /*
448      * This is the default machine for the 4.0-stable branch. It is basically
449      * a 4.0 that doesn't use split irqchip by default. It MUST hence apply the
450      * 4.0 compat props.
451      */
452     compat_props_add(m->compat_props, hw_compat_4_0, hw_compat_4_0_len);
453     compat_props_add(m->compat_props, pc_compat_4_0, pc_compat_4_0_len);
454 }
455 
456 DEFINE_Q35_MACHINE(v4_0_1, "pc-q35-4.0.1", NULL,
457                    pc_q35_4_0_1_machine_options);
458 
459 static void pc_q35_4_0_machine_options(MachineClass *m)
460 {
461     pc_q35_4_0_1_machine_options(m);
462     m->default_kernel_irqchip_split = true;
463     m->alias = NULL;
464     /* Compat props are applied by the 4.0.1 machine */
465 }
466 
467 DEFINE_Q35_MACHINE(v4_0, "pc-q35-4.0", NULL,
468                    pc_q35_4_0_machine_options);
469 
470 static void pc_q35_3_1_machine_options(MachineClass *m)
471 {
472     PCMachineClass *pcmc = PC_MACHINE_CLASS(m);
473 
474     pc_q35_4_0_machine_options(m);
475     m->default_kernel_irqchip_split = false;
476     pcmc->do_not_add_smb_acpi = true;
477     m->smbus_no_migration_support = true;
478     m->alias = NULL;
479     pcmc->pvh_enabled = false;
480     compat_props_add(m->compat_props, hw_compat_3_1, hw_compat_3_1_len);
481     compat_props_add(m->compat_props, pc_compat_3_1, pc_compat_3_1_len);
482 }
483 
484 DEFINE_Q35_MACHINE(v3_1, "pc-q35-3.1", NULL,
485                    pc_q35_3_1_machine_options);
486 
487 static void pc_q35_3_0_machine_options(MachineClass *m)
488 {
489     pc_q35_3_1_machine_options(m);
490     compat_props_add(m->compat_props, hw_compat_3_0, hw_compat_3_0_len);
491     compat_props_add(m->compat_props, pc_compat_3_0, pc_compat_3_0_len);
492 }
493 
494 DEFINE_Q35_MACHINE(v3_0, "pc-q35-3.0", NULL,
495                     pc_q35_3_0_machine_options);
496 
497 static void pc_q35_2_12_machine_options(MachineClass *m)
498 {
499     pc_q35_3_0_machine_options(m);
500     compat_props_add(m->compat_props, hw_compat_2_12, hw_compat_2_12_len);
501     compat_props_add(m->compat_props, pc_compat_2_12, pc_compat_2_12_len);
502 }
503 
504 DEFINE_Q35_MACHINE(v2_12, "pc-q35-2.12", NULL,
505                    pc_q35_2_12_machine_options);
506 
507 static void pc_q35_2_11_machine_options(MachineClass *m)
508 {
509     PCMachineClass *pcmc = PC_MACHINE_CLASS(m);
510 
511     pc_q35_2_12_machine_options(m);
512     pcmc->default_nic_model = "e1000";
513     compat_props_add(m->compat_props, hw_compat_2_11, hw_compat_2_11_len);
514     compat_props_add(m->compat_props, pc_compat_2_11, pc_compat_2_11_len);
515 }
516 
517 DEFINE_Q35_MACHINE(v2_11, "pc-q35-2.11", NULL,
518                    pc_q35_2_11_machine_options);
519 
520 static void pc_q35_2_10_machine_options(MachineClass *m)
521 {
522     pc_q35_2_11_machine_options(m);
523     compat_props_add(m->compat_props, hw_compat_2_10, hw_compat_2_10_len);
524     compat_props_add(m->compat_props, pc_compat_2_10, pc_compat_2_10_len);
525     m->auto_enable_numa_with_memhp = false;
526 }
527 
528 DEFINE_Q35_MACHINE(v2_10, "pc-q35-2.10", NULL,
529                    pc_q35_2_10_machine_options);
530 
531 static void pc_q35_2_9_machine_options(MachineClass *m)
532 {
533     pc_q35_2_10_machine_options(m);
534     compat_props_add(m->compat_props, hw_compat_2_9, hw_compat_2_9_len);
535     compat_props_add(m->compat_props, pc_compat_2_9, pc_compat_2_9_len);
536 }
537 
538 DEFINE_Q35_MACHINE(v2_9, "pc-q35-2.9", NULL,
539                    pc_q35_2_9_machine_options);
540 
541 static void pc_q35_2_8_machine_options(MachineClass *m)
542 {
543     pc_q35_2_9_machine_options(m);
544     compat_props_add(m->compat_props, hw_compat_2_8, hw_compat_2_8_len);
545     compat_props_add(m->compat_props, pc_compat_2_8, pc_compat_2_8_len);
546 }
547 
548 DEFINE_Q35_MACHINE(v2_8, "pc-q35-2.8", NULL,
549                    pc_q35_2_8_machine_options);
550 
551 static void pc_q35_2_7_machine_options(MachineClass *m)
552 {
553     pc_q35_2_8_machine_options(m);
554     m->max_cpus = 255;
555     compat_props_add(m->compat_props, hw_compat_2_7, hw_compat_2_7_len);
556     compat_props_add(m->compat_props, pc_compat_2_7, pc_compat_2_7_len);
557 }
558 
559 DEFINE_Q35_MACHINE(v2_7, "pc-q35-2.7", NULL,
560                    pc_q35_2_7_machine_options);
561 
562 static void pc_q35_2_6_machine_options(MachineClass *m)
563 {
564     PCMachineClass *pcmc = PC_MACHINE_CLASS(m);
565 
566     pc_q35_2_7_machine_options(m);
567     pcmc->legacy_cpu_hotplug = true;
568     pcmc->linuxboot_dma_enabled = false;
569     compat_props_add(m->compat_props, hw_compat_2_6, hw_compat_2_6_len);
570     compat_props_add(m->compat_props, pc_compat_2_6, pc_compat_2_6_len);
571 }
572 
573 DEFINE_Q35_MACHINE(v2_6, "pc-q35-2.6", NULL,
574                    pc_q35_2_6_machine_options);
575 
576 static void pc_q35_2_5_machine_options(MachineClass *m)
577 {
578     X86MachineClass *x86mc = X86_MACHINE_CLASS(m);
579 
580     pc_q35_2_6_machine_options(m);
581     x86mc->save_tsc_khz = false;
582     m->legacy_fw_cfg_order = 1;
583     compat_props_add(m->compat_props, hw_compat_2_5, hw_compat_2_5_len);
584     compat_props_add(m->compat_props, pc_compat_2_5, pc_compat_2_5_len);
585 }
586 
587 DEFINE_Q35_MACHINE(v2_5, "pc-q35-2.5", NULL,
588                    pc_q35_2_5_machine_options);
589 
590 static void pc_q35_2_4_machine_options(MachineClass *m)
591 {
592     PCMachineClass *pcmc = PC_MACHINE_CLASS(m);
593 
594     pc_q35_2_5_machine_options(m);
595     m->hw_version = "2.4.0";
596     pcmc->broken_reserved_end = true;
597     compat_props_add(m->compat_props, hw_compat_2_4, hw_compat_2_4_len);
598     compat_props_add(m->compat_props, pc_compat_2_4, pc_compat_2_4_len);
599 }
600 
601 DEFINE_Q35_MACHINE(v2_4, "pc-q35-2.4", NULL,
602                    pc_q35_2_4_machine_options);
603