xref: /openbmc/qemu/hw/i386/pc_piix.c (revision cf83f140059f21d4629ae4b61d468c3baef2bb4c)
1 /*
2  * QEMU PC System Emulator
3  *
4  * Copyright (c) 2003-2004 Fabrice Bellard
5  *
6  * Permission is hereby granted, free of charge, to any person obtaining a copy
7  * of this software and associated documentation files (the "Software"), to deal
8  * in the Software without restriction, including without limitation the rights
9  * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
10  * copies of the Software, and to permit persons to whom the Software is
11  * furnished to do so, subject to the following conditions:
12  *
13  * The above copyright notice and this permission notice shall be included in
14  * all copies or substantial portions of the Software.
15  *
16  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
19  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
21  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
22  * THE SOFTWARE.
23  */
24 
25 #include "qemu/osdep.h"
26 
27 #include "hw/hw.h"
28 #include "hw/loader.h"
29 #include "hw/i386/pc.h"
30 #include "hw/i386/apic.h"
31 #include "hw/smbios/smbios.h"
32 #include "hw/pci/pci.h"
33 #include "hw/pci/pci_ids.h"
34 #include "hw/usb.h"
35 #include "net/net.h"
36 #include "hw/boards.h"
37 #include "hw/ide.h"
38 #include "sysemu/kvm.h"
39 #include "hw/kvm/clock.h"
40 #include "sysemu/sysemu.h"
41 #include "hw/sysbus.h"
42 #include "sysemu/arch_init.h"
43 #include "sysemu/block-backend.h"
44 #include "hw/i2c/smbus.h"
45 #include "hw/xen/xen.h"
46 #include "exec/memory.h"
47 #include "exec/address-spaces.h"
48 #include "hw/acpi/acpi.h"
49 #include "cpu.h"
50 #include "qemu/error-report.h"
51 #ifdef CONFIG_XEN
52 #include <xen/hvm/hvm_info_table.h>
53 #include "hw/xen/xen_pt.h"
54 #endif
55 #include "migration/migration.h"
56 #include "kvm_i386.h"
57 #include "sysemu/numa.h"
58 
59 #define MAX_IDE_BUS 2
60 
61 static const int ide_iobase[MAX_IDE_BUS] = { 0x1f0, 0x170 };
62 static const int ide_iobase2[MAX_IDE_BUS] = { 0x3f6, 0x376 };
63 static const int ide_irq[MAX_IDE_BUS] = { 14, 15 };
64 
65 /* PC hardware initialisation */
66 static void pc_init1(MachineState *machine,
67                      const char *host_type, const char *pci_type)
68 {
69     PCMachineState *pcms = PC_MACHINE(machine);
70     PCMachineClass *pcmc = PC_MACHINE_GET_CLASS(pcms);
71     MemoryRegion *system_memory = get_system_memory();
72     MemoryRegion *system_io = get_system_io();
73     int i;
74     PCIBus *pci_bus;
75     ISABus *isa_bus;
76     PCII440FXState *i440fx_state;
77     int piix3_devfn = -1;
78     qemu_irq *i8259;
79     qemu_irq smi_irq;
80     GSIState *gsi_state;
81     DriveInfo *hd[MAX_IDE_BUS * MAX_IDE_DEVS];
82     BusState *idebus[MAX_IDE_BUS];
83     ISADevice *rtc_state;
84     MemoryRegion *ram_memory;
85     MemoryRegion *pci_memory;
86     MemoryRegion *rom_memory;
87     ram_addr_t lowmem;
88 
89     /*
90      * Calculate ram split, for memory below and above 4G.  It's a bit
91      * complicated for backward compatibility reasons ...
92      *
93      *  - Traditional split is 3.5G (lowmem = 0xe0000000).  This is the
94      *    default value for max_ram_below_4g now.
95      *
96      *  - Then, to gigabyte align the memory, we move the split to 3G
97      *    (lowmem = 0xc0000000).  But only in case we have to split in
98      *    the first place, i.e. ram_size is larger than (traditional)
99      *    lowmem.  And for new machine types (gigabyte_align = true)
100      *    only, for live migration compatibility reasons.
101      *
102      *  - Next the max-ram-below-4g option was added, which allowed to
103      *    reduce lowmem to a smaller value, to allow a larger PCI I/O
104      *    window below 4G.  qemu doesn't enforce gigabyte alignment here,
105      *    but prints a warning.
106      *
107      *  - Finally max-ram-below-4g got updated to also allow raising lowmem,
108      *    so legacy non-PAE guests can get as much memory as possible in
109      *    the 32bit address space below 4G.
110      *
111      *  - Note that Xen has its own ram setp code in xen_ram_init(),
112      *    called via xen_hvm_init().
113      *
114      * Examples:
115      *    qemu -M pc-1.7 -m 4G    (old default)    -> 3584M low,  512M high
116      *    qemu -M pc -m 4G        (new default)    -> 3072M low, 1024M high
117      *    qemu -M pc,max-ram-below-4g=2G -m 4G     -> 2048M low, 2048M high
118      *    qemu -M pc,max-ram-below-4g=4G -m 3968M  -> 3968M low (=4G-128M)
119      */
120     if (xen_enabled()) {
121         xen_hvm_init(pcms, &ram_memory);
122     } else {
123         if (!pcms->max_ram_below_4g) {
124             pcms->max_ram_below_4g = 0xe0000000; /* default: 3.5G */
125         }
126         lowmem = pcms->max_ram_below_4g;
127         if (machine->ram_size >= pcms->max_ram_below_4g) {
128             if (pcmc->gigabyte_align) {
129                 if (lowmem > 0xc0000000) {
130                     lowmem = 0xc0000000;
131                 }
132                 if (lowmem & ((1ULL << 30) - 1)) {
133                     error_report("Warning: Large machine and max_ram_below_4g "
134                                  "(%" PRIu64 ") not a multiple of 1G; "
135                                  "possible bad performance.",
136                                  pcms->max_ram_below_4g);
137                 }
138             }
139         }
140 
141         if (machine->ram_size >= lowmem) {
142             pcms->above_4g_mem_size = machine->ram_size - lowmem;
143             pcms->below_4g_mem_size = lowmem;
144         } else {
145             pcms->above_4g_mem_size = 0;
146             pcms->below_4g_mem_size = machine->ram_size;
147         }
148     }
149 
150     pc_cpus_init(pcms);
151 
152     if (kvm_enabled() && pcmc->kvmclock_enabled) {
153         kvmclock_create();
154     }
155 
156     if (pcmc->pci_enabled) {
157         pci_memory = g_new(MemoryRegion, 1);
158         memory_region_init(pci_memory, NULL, "pci", UINT64_MAX);
159         rom_memory = pci_memory;
160     } else {
161         pci_memory = NULL;
162         rom_memory = system_memory;
163     }
164 
165     pc_guest_info_init(pcms);
166 
167     if (pcmc->smbios_defaults) {
168         MachineClass *mc = MACHINE_GET_CLASS(machine);
169         /* These values are guest ABI, do not change */
170         smbios_set_defaults("QEMU", "Standard PC (i440FX + PIIX, 1996)",
171                             mc->name, pcmc->smbios_legacy_mode,
172                             pcmc->smbios_uuid_encoded,
173                             SMBIOS_ENTRY_POINT_21);
174     }
175 
176     /* allocate ram and load rom/bios */
177     if (!xen_enabled()) {
178         pc_memory_init(pcms, system_memory,
179                        rom_memory, &ram_memory);
180     } else if (machine->kernel_filename != NULL) {
181         /* For xen HVM direct kernel boot, load linux here */
182         xen_load_linux(pcms);
183     }
184 
185     gsi_state = g_malloc0(sizeof(*gsi_state));
186     if (kvm_ioapic_in_kernel()) {
187         kvm_pc_setup_irq_routing(pcmc->pci_enabled);
188         pcms->gsi = qemu_allocate_irqs(kvm_pc_gsi_handler, gsi_state,
189                                        GSI_NUM_PINS);
190     } else {
191         pcms->gsi = qemu_allocate_irqs(gsi_handler, gsi_state, GSI_NUM_PINS);
192     }
193 
194     if (pcmc->pci_enabled) {
195         pci_bus = i440fx_init(host_type,
196                               pci_type,
197                               &i440fx_state, &piix3_devfn, &isa_bus, pcms->gsi,
198                               system_memory, system_io, machine->ram_size,
199                               pcms->below_4g_mem_size,
200                               pcms->above_4g_mem_size,
201                               pci_memory, ram_memory);
202         pcms->bus = pci_bus;
203     } else {
204         pci_bus = NULL;
205         i440fx_state = NULL;
206         isa_bus = isa_bus_new(NULL, get_system_memory(), system_io,
207                               &error_abort);
208         no_hpet = 1;
209     }
210     isa_bus_irqs(isa_bus, pcms->gsi);
211 
212     if (kvm_pic_in_kernel()) {
213         i8259 = kvm_i8259_init(isa_bus);
214     } else if (xen_enabled()) {
215         i8259 = xen_interrupt_controller_init();
216     } else {
217         i8259 = i8259_init(isa_bus, pc_allocate_cpu_irq());
218     }
219 
220     for (i = 0; i < ISA_NUM_IRQS; i++) {
221         gsi_state->i8259_irq[i] = i8259[i];
222     }
223     g_free(i8259);
224     if (pcmc->pci_enabled) {
225         ioapic_init_gsi(gsi_state, "i440fx");
226     }
227 
228     pc_register_ferr_irq(pcms->gsi[13]);
229 
230     pc_vga_init(isa_bus, pcmc->pci_enabled ? pci_bus : NULL);
231 
232     assert(pcms->vmport != ON_OFF_AUTO__MAX);
233     if (pcms->vmport == ON_OFF_AUTO_AUTO) {
234         pcms->vmport = xen_enabled() ? ON_OFF_AUTO_OFF : ON_OFF_AUTO_ON;
235     }
236 
237     /* init basic PC hardware */
238     pc_basic_device_init(isa_bus, pcms->gsi, &rtc_state, true,
239                          (pcms->vmport != ON_OFF_AUTO_ON), pcms->pit, 0x4);
240 
241     pc_nic_init(isa_bus, pci_bus);
242 
243     ide_drive_get(hd, ARRAY_SIZE(hd));
244     if (pcmc->pci_enabled) {
245         PCIDevice *dev;
246         if (xen_enabled()) {
247             dev = pci_piix3_xen_ide_init(pci_bus, hd, piix3_devfn + 1);
248         } else {
249             dev = pci_piix3_ide_init(pci_bus, hd, piix3_devfn + 1);
250         }
251         idebus[0] = qdev_get_child_bus(&dev->qdev, "ide.0");
252         idebus[1] = qdev_get_child_bus(&dev->qdev, "ide.1");
253     } else {
254         for(i = 0; i < MAX_IDE_BUS; i++) {
255             ISADevice *dev;
256             char busname[] = "ide.0";
257             dev = isa_ide_init(isa_bus, ide_iobase[i], ide_iobase2[i],
258                                ide_irq[i],
259                                hd[MAX_IDE_DEVS * i], hd[MAX_IDE_DEVS * i + 1]);
260             /*
261              * The ide bus name is ide.0 for the first bus and ide.1 for the
262              * second one.
263              */
264             busname[4] = '0' + i;
265             idebus[i] = qdev_get_child_bus(DEVICE(dev), busname);
266         }
267     }
268 
269     pc_cmos_init(pcms, idebus[0], idebus[1], rtc_state);
270 
271     if (pcmc->pci_enabled && machine_usb(machine)) {
272         pci_create_simple(pci_bus, piix3_devfn + 2, "piix3-usb-uhci");
273     }
274 
275     if (pcmc->pci_enabled && acpi_enabled) {
276         DeviceState *piix4_pm;
277         I2CBus *smbus;
278 
279         smi_irq = qemu_allocate_irq(pc_acpi_smi_interrupt, first_cpu, 0);
280         /* TODO: Populate SPD eeprom data.  */
281         smbus = piix4_pm_init(pci_bus, piix3_devfn + 3, 0xb100,
282                               pcms->gsi[9], smi_irq,
283                               pc_machine_is_smm_enabled(pcms),
284                               &piix4_pm);
285         smbus_eeprom_init(smbus, 8, NULL, 0);
286 
287         object_property_add_link(OBJECT(machine), PC_MACHINE_ACPI_DEVICE_PROP,
288                                  TYPE_HOTPLUG_HANDLER,
289                                  (Object **)&pcms->acpi_dev,
290                                  object_property_allow_set_link,
291                                  OBJ_PROP_LINK_UNREF_ON_RELEASE, &error_abort);
292         object_property_set_link(OBJECT(machine), OBJECT(piix4_pm),
293                                  PC_MACHINE_ACPI_DEVICE_PROP, &error_abort);
294     }
295 
296     if (pcmc->pci_enabled) {
297         pc_pci_device_init(pci_bus);
298     }
299 
300     if (pcms->acpi_nvdimm_state.is_enabled) {
301         nvdimm_init_acpi_state(&pcms->acpi_nvdimm_state, system_io,
302                                pcms->fw_cfg, OBJECT(pcms));
303     }
304 }
305 
306 /* Looking for a pc_compat_2_4() function? It doesn't exist.
307  * pc_compat_*() functions that run on machine-init time and
308  * change global QEMU state are deprecated. Please don't create
309  * one, and implement any pc-*-2.4 (and newer) compat code in
310  * HW_COMPAT_*, PC_COMPAT_*, or * pc_*_machine_options().
311  */
312 
313 static void pc_compat_2_3(MachineState *machine)
314 {
315     PCMachineState *pcms = PC_MACHINE(machine);
316     savevm_skip_section_footers();
317     if (kvm_enabled()) {
318         pcms->smm = ON_OFF_AUTO_OFF;
319     }
320     global_state_set_optional();
321     savevm_skip_configuration();
322 }
323 
324 static void pc_compat_2_2(MachineState *machine)
325 {
326     pc_compat_2_3(machine);
327     machine->suppress_vmdesc = true;
328 }
329 
330 static void pc_compat_2_1(MachineState *machine)
331 {
332     pc_compat_2_2(machine);
333     x86_cpu_change_kvm_default("svm", NULL);
334 }
335 
336 static void pc_compat_2_0(MachineState *machine)
337 {
338     pc_compat_2_1(machine);
339 }
340 
341 static void pc_compat_1_7(MachineState *machine)
342 {
343     pc_compat_2_0(machine);
344     x86_cpu_change_kvm_default("x2apic", NULL);
345 }
346 
347 static void pc_compat_1_6(MachineState *machine)
348 {
349     pc_compat_1_7(machine);
350 }
351 
352 static void pc_compat_1_5(MachineState *machine)
353 {
354     pc_compat_1_6(machine);
355 }
356 
357 static void pc_compat_1_4(MachineState *machine)
358 {
359     pc_compat_1_5(machine);
360 }
361 
362 static void pc_compat_1_3(MachineState *machine)
363 {
364     pc_compat_1_4(machine);
365     enable_compat_apic_id_mode();
366 }
367 
368 /* PC compat function for pc-0.14 to pc-1.2 */
369 static void pc_compat_1_2(MachineState *machine)
370 {
371     pc_compat_1_3(machine);
372     x86_cpu_change_kvm_default("kvm-pv-eoi", NULL);
373 }
374 
375 /* PC compat function for pc-0.10 to pc-0.13 */
376 static void pc_compat_0_13(MachineState *machine)
377 {
378     pc_compat_1_2(machine);
379 }
380 
381 static void pc_init_isa(MachineState *machine)
382 {
383     if (!machine->cpu_model) {
384         machine->cpu_model = "486";
385     }
386     x86_cpu_change_kvm_default("kvm-pv-eoi", NULL);
387     enable_compat_apic_id_mode();
388     pc_init1(machine, TYPE_I440FX_PCI_HOST_BRIDGE, TYPE_I440FX_PCI_DEVICE);
389 }
390 
391 #ifdef CONFIG_XEN
392 static void pc_xen_hvm_init_pci(MachineState *machine)
393 {
394     const char *pci_type = has_igd_gfx_passthru ?
395                 TYPE_IGD_PASSTHROUGH_I440FX_PCI_DEVICE : TYPE_I440FX_PCI_DEVICE;
396 
397     pc_init1(machine,
398              TYPE_I440FX_PCI_HOST_BRIDGE,
399              pci_type);
400 }
401 
402 static void pc_xen_hvm_init(MachineState *machine)
403 {
404     PCIBus *bus;
405 
406     if (!xen_enabled()) {
407         error_report("xenfv machine requires the xen accelerator");
408         exit(1);
409     }
410 
411     pc_xen_hvm_init_pci(machine);
412 
413     bus = pci_find_primary_bus();
414     if (bus != NULL) {
415         pci_create_simple(bus, -1, "xen-platform");
416     }
417 }
418 #endif
419 
420 #define DEFINE_I440FX_MACHINE(suffix, name, compatfn, optionfn) \
421     static void pc_init_##suffix(MachineState *machine) \
422     { \
423         void (*compat)(MachineState *m) = (compatfn); \
424         if (compat) { \
425             compat(machine); \
426         } \
427         pc_init1(machine, TYPE_I440FX_PCI_HOST_BRIDGE, \
428                  TYPE_I440FX_PCI_DEVICE); \
429     } \
430     DEFINE_PC_MACHINE(suffix, name, pc_init_##suffix, optionfn)
431 
432 static void pc_i440fx_machine_options(MachineClass *m)
433 {
434     m->family = "pc_piix";
435     m->desc = "Standard PC (i440FX + PIIX, 1996)";
436     m->hot_add_cpu = pc_hot_add_cpu;
437     m->default_machine_opts = "firmware=bios-256k.bin";
438     m->default_display = "std";
439 }
440 
441 static void pc_i440fx_2_10_machine_options(MachineClass *m)
442 {
443     pc_i440fx_machine_options(m);
444     m->alias = "pc";
445     m->is_default = 1;
446     m->numa_auto_assign_ram = numa_legacy_auto_assign_ram;
447 }
448 
449 DEFINE_I440FX_MACHINE(v2_10, "pc-i440fx-2.10", NULL,
450                       pc_i440fx_2_10_machine_options);
451 
452 static void pc_i440fx_2_9_machine_options(MachineClass *m)
453 {
454     pc_i440fx_2_10_machine_options(m);
455     m->is_default = 0;
456     m->alias = NULL;
457     SET_MACHINE_COMPAT(m, PC_COMPAT_2_9);
458 }
459 
460 DEFINE_I440FX_MACHINE(v2_9, "pc-i440fx-2.9", NULL,
461                       pc_i440fx_2_9_machine_options);
462 
463 static void pc_i440fx_2_8_machine_options(MachineClass *m)
464 {
465     pc_i440fx_2_9_machine_options(m);
466     SET_MACHINE_COMPAT(m, PC_COMPAT_2_8);
467 }
468 
469 DEFINE_I440FX_MACHINE(v2_8, "pc-i440fx-2.8", NULL,
470                       pc_i440fx_2_8_machine_options);
471 
472 
473 static void pc_i440fx_2_7_machine_options(MachineClass *m)
474 {
475     pc_i440fx_2_8_machine_options(m);
476     SET_MACHINE_COMPAT(m, PC_COMPAT_2_7);
477 }
478 
479 DEFINE_I440FX_MACHINE(v2_7, "pc-i440fx-2.7", NULL,
480                       pc_i440fx_2_7_machine_options);
481 
482 
483 static void pc_i440fx_2_6_machine_options(MachineClass *m)
484 {
485     PCMachineClass *pcmc = PC_MACHINE_CLASS(m);
486     pc_i440fx_2_7_machine_options(m);
487     pcmc->legacy_cpu_hotplug = true;
488     pcmc->linuxboot_dma_enabled = false;
489     SET_MACHINE_COMPAT(m, PC_COMPAT_2_6);
490 }
491 
492 DEFINE_I440FX_MACHINE(v2_6, "pc-i440fx-2.6", NULL,
493                       pc_i440fx_2_6_machine_options);
494 
495 
496 static void pc_i440fx_2_5_machine_options(MachineClass *m)
497 {
498     PCMachineClass *pcmc = PC_MACHINE_CLASS(m);
499     pc_i440fx_2_6_machine_options(m);
500     pcmc->save_tsc_khz = false;
501     m->legacy_fw_cfg_order = 1;
502     SET_MACHINE_COMPAT(m, PC_COMPAT_2_5);
503 }
504 
505 DEFINE_I440FX_MACHINE(v2_5, "pc-i440fx-2.5", NULL,
506                       pc_i440fx_2_5_machine_options);
507 
508 
509 static void pc_i440fx_2_4_machine_options(MachineClass *m)
510 {
511     PCMachineClass *pcmc = PC_MACHINE_CLASS(m);
512     pc_i440fx_2_5_machine_options(m);
513     m->hw_version = "2.4.0";
514     pcmc->broken_reserved_end = true;
515     SET_MACHINE_COMPAT(m, PC_COMPAT_2_4);
516 }
517 
518 DEFINE_I440FX_MACHINE(v2_4, "pc-i440fx-2.4", NULL,
519                       pc_i440fx_2_4_machine_options)
520 
521 
522 static void pc_i440fx_2_3_machine_options(MachineClass *m)
523 {
524     pc_i440fx_2_4_machine_options(m);
525     m->hw_version = "2.3.0";
526     SET_MACHINE_COMPAT(m, PC_COMPAT_2_3);
527 }
528 
529 DEFINE_I440FX_MACHINE(v2_3, "pc-i440fx-2.3", pc_compat_2_3,
530                       pc_i440fx_2_3_machine_options);
531 
532 
533 static void pc_i440fx_2_2_machine_options(MachineClass *m)
534 {
535     PCMachineClass *pcmc = PC_MACHINE_CLASS(m);
536     pc_i440fx_2_3_machine_options(m);
537     m->hw_version = "2.2.0";
538     SET_MACHINE_COMPAT(m, PC_COMPAT_2_2);
539     pcmc->rsdp_in_ram = false;
540 }
541 
542 DEFINE_I440FX_MACHINE(v2_2, "pc-i440fx-2.2", pc_compat_2_2,
543                       pc_i440fx_2_2_machine_options);
544 
545 
546 static void pc_i440fx_2_1_machine_options(MachineClass *m)
547 {
548     PCMachineClass *pcmc = PC_MACHINE_CLASS(m);
549     pc_i440fx_2_2_machine_options(m);
550     m->hw_version = "2.1.0";
551     m->default_display = NULL;
552     SET_MACHINE_COMPAT(m, PC_COMPAT_2_1);
553     pcmc->smbios_uuid_encoded = false;
554     pcmc->enforce_aligned_dimm = false;
555 }
556 
557 DEFINE_I440FX_MACHINE(v2_1, "pc-i440fx-2.1", pc_compat_2_1,
558                       pc_i440fx_2_1_machine_options);
559 
560 
561 
562 static void pc_i440fx_2_0_machine_options(MachineClass *m)
563 {
564     PCMachineClass *pcmc = PC_MACHINE_CLASS(m);
565     pc_i440fx_2_1_machine_options(m);
566     m->hw_version = "2.0.0";
567     SET_MACHINE_COMPAT(m, PC_COMPAT_2_0);
568     pcmc->smbios_legacy_mode = true;
569     pcmc->has_reserved_memory = false;
570     /* This value depends on the actual DSDT and SSDT compiled into
571      * the source QEMU; unfortunately it depends on the binary and
572      * not on the machine type, so we cannot make pc-i440fx-1.7 work on
573      * both QEMU 1.7 and QEMU 2.0.
574      *
575      * Large variations cause migration to fail for more than one
576      * consecutive value of the "-smp" maxcpus option.
577      *
578      * For small variations of the kind caused by different iasl versions,
579      * the 4k rounding usually leaves slack.  However, there could be still
580      * one or two values that break.  For QEMU 1.7 and QEMU 2.0 the
581      * slack is only ~10 bytes before one "-smp maxcpus" value breaks!
582      *
583      * 6652 is valid for QEMU 2.0, the right value for pc-i440fx-1.7 on
584      * QEMU 1.7 it is 6414.  For RHEL/CentOS 7.0 it is 6418.
585      */
586     pcmc->legacy_acpi_table_size = 6652;
587     pcmc->acpi_data_size = 0x10000;
588 }
589 
590 DEFINE_I440FX_MACHINE(v2_0, "pc-i440fx-2.0", pc_compat_2_0,
591                       pc_i440fx_2_0_machine_options);
592 
593 
594 static void pc_i440fx_1_7_machine_options(MachineClass *m)
595 {
596     PCMachineClass *pcmc = PC_MACHINE_CLASS(m);
597     pc_i440fx_2_0_machine_options(m);
598     m->hw_version = "1.7.0";
599     m->default_machine_opts = NULL;
600     m->option_rom_has_mr = true;
601     SET_MACHINE_COMPAT(m, PC_COMPAT_1_7);
602     pcmc->smbios_defaults = false;
603     pcmc->gigabyte_align = false;
604     pcmc->legacy_acpi_table_size = 6414;
605 }
606 
607 DEFINE_I440FX_MACHINE(v1_7, "pc-i440fx-1.7", pc_compat_1_7,
608                       pc_i440fx_1_7_machine_options);
609 
610 
611 static void pc_i440fx_1_6_machine_options(MachineClass *m)
612 {
613     PCMachineClass *pcmc = PC_MACHINE_CLASS(m);
614     pc_i440fx_1_7_machine_options(m);
615     m->hw_version = "1.6.0";
616     m->rom_file_has_mr = false;
617     SET_MACHINE_COMPAT(m, PC_COMPAT_1_6);
618     pcmc->has_acpi_build = false;
619 }
620 
621 DEFINE_I440FX_MACHINE(v1_6, "pc-i440fx-1.6", pc_compat_1_6,
622                       pc_i440fx_1_6_machine_options);
623 
624 
625 static void pc_i440fx_1_5_machine_options(MachineClass *m)
626 {
627     pc_i440fx_1_6_machine_options(m);
628     m->hw_version = "1.5.0";
629     SET_MACHINE_COMPAT(m, PC_COMPAT_1_5);
630 }
631 
632 DEFINE_I440FX_MACHINE(v1_5, "pc-i440fx-1.5", pc_compat_1_5,
633                       pc_i440fx_1_5_machine_options);
634 
635 
636 static void pc_i440fx_1_4_machine_options(MachineClass *m)
637 {
638     pc_i440fx_1_5_machine_options(m);
639     m->hw_version = "1.4.0";
640     m->hot_add_cpu = NULL;
641     SET_MACHINE_COMPAT(m, PC_COMPAT_1_4);
642 }
643 
644 DEFINE_I440FX_MACHINE(v1_4, "pc-i440fx-1.4", pc_compat_1_4,
645                       pc_i440fx_1_4_machine_options);
646 
647 
648 #define PC_COMPAT_1_3 \
649         PC_CPU_MODEL_IDS("1.3.0") \
650         {\
651             .driver   = "usb-tablet",\
652             .property = "usb_version",\
653             .value    = stringify(1),\
654         },{\
655             .driver   = "virtio-net-pci",\
656             .property = "ctrl_mac_addr",\
657             .value    = "off",      \
658         },{ \
659             .driver   = "virtio-net-pci", \
660             .property = "mq", \
661             .value    = "off", \
662         }, {\
663             .driver   = "e1000",\
664             .property = "autonegotiation",\
665             .value    = "off",\
666         },
667 
668 
669 static void pc_i440fx_1_3_machine_options(MachineClass *m)
670 {
671     pc_i440fx_1_4_machine_options(m);
672     m->hw_version = "1.3.0";
673     SET_MACHINE_COMPAT(m, PC_COMPAT_1_3);
674 }
675 
676 DEFINE_I440FX_MACHINE(v1_3, "pc-1.3", pc_compat_1_3,
677                       pc_i440fx_1_3_machine_options);
678 
679 
680 #define PC_COMPAT_1_2 \
681         PC_CPU_MODEL_IDS("1.2.0") \
682         {\
683             .driver   = "nec-usb-xhci",\
684             .property = "msi",\
685             .value    = "off",\
686         },{\
687             .driver   = "nec-usb-xhci",\
688             .property = "msix",\
689             .value    = "off",\
690         },{\
691             .driver   = "ivshmem",\
692             .property = "use64",\
693             .value    = "0",\
694         },{\
695             .driver   = "qxl",\
696             .property = "revision",\
697             .value    = stringify(3),\
698         },{\
699             .driver   = "qxl-vga",\
700             .property = "revision",\
701             .value    = stringify(3),\
702         },{\
703             .driver   = "VGA",\
704             .property = "mmio",\
705             .value    = "off",\
706         },
707 
708 static void pc_i440fx_1_2_machine_options(MachineClass *m)
709 {
710     pc_i440fx_1_3_machine_options(m);
711     m->hw_version = "1.2.0";
712     SET_MACHINE_COMPAT(m, PC_COMPAT_1_2);
713 }
714 
715 DEFINE_I440FX_MACHINE(v1_2, "pc-1.2", pc_compat_1_2,
716                       pc_i440fx_1_2_machine_options);
717 
718 
719 #define PC_COMPAT_1_1 \
720         PC_CPU_MODEL_IDS("1.1.0") \
721         {\
722             .driver   = "virtio-scsi-pci",\
723             .property = "hotplug",\
724             .value    = "off",\
725         },{\
726             .driver   = "virtio-scsi-pci",\
727             .property = "param_change",\
728             .value    = "off",\
729         },{\
730             .driver   = "VGA",\
731             .property = "vgamem_mb",\
732             .value    = stringify(8),\
733         },{\
734             .driver   = "vmware-svga",\
735             .property = "vgamem_mb",\
736             .value    = stringify(8),\
737         },{\
738             .driver   = "qxl-vga",\
739             .property = "vgamem_mb",\
740             .value    = stringify(8),\
741         },{\
742             .driver   = "qxl",\
743             .property = "vgamem_mb",\
744             .value    = stringify(8),\
745         },{\
746             .driver   = "virtio-blk-pci",\
747             .property = "config-wce",\
748             .value    = "off",\
749         },
750 
751 static void pc_i440fx_1_1_machine_options(MachineClass *m)
752 {
753     pc_i440fx_1_2_machine_options(m);
754     m->hw_version = "1.1.0";
755     SET_MACHINE_COMPAT(m, PC_COMPAT_1_1);
756 }
757 
758 DEFINE_I440FX_MACHINE(v1_1, "pc-1.1", pc_compat_1_2,
759                       pc_i440fx_1_1_machine_options);
760 
761 
762 #define PC_COMPAT_1_0 \
763         PC_CPU_MODEL_IDS("1.0") \
764         {\
765             .driver   = TYPE_ISA_FDC,\
766             .property = "check_media_rate",\
767             .value    = "off",\
768         }, {\
769             .driver   = "virtio-balloon-pci",\
770             .property = "class",\
771             .value    = stringify(PCI_CLASS_MEMORY_RAM),\
772         },{\
773             .driver   = "apic-common",\
774             .property = "vapic",\
775             .value    = "off",\
776         },{\
777             .driver   = TYPE_USB_DEVICE,\
778             .property = "full-path",\
779             .value    = "no",\
780         },
781 
782 static void pc_i440fx_1_0_machine_options(MachineClass *m)
783 {
784     pc_i440fx_1_1_machine_options(m);
785     m->hw_version = "1.0";
786     SET_MACHINE_COMPAT(m, PC_COMPAT_1_0);
787 }
788 
789 DEFINE_I440FX_MACHINE(v1_0, "pc-1.0", pc_compat_1_2,
790                       pc_i440fx_1_0_machine_options);
791 
792 
793 #define PC_COMPAT_0_15 \
794         PC_CPU_MODEL_IDS("0.15")
795 
796 static void pc_i440fx_0_15_machine_options(MachineClass *m)
797 {
798     pc_i440fx_1_0_machine_options(m);
799     m->hw_version = "0.15";
800     SET_MACHINE_COMPAT(m, PC_COMPAT_0_15);
801 }
802 
803 DEFINE_I440FX_MACHINE(v0_15, "pc-0.15", pc_compat_1_2,
804                       pc_i440fx_0_15_machine_options);
805 
806 
807 #define PC_COMPAT_0_14 \
808         PC_CPU_MODEL_IDS("0.14") \
809         {\
810             .driver   = "virtio-blk-pci",\
811             .property = "event_idx",\
812             .value    = "off",\
813         },{\
814             .driver   = "virtio-serial-pci",\
815             .property = "event_idx",\
816             .value    = "off",\
817         },{\
818             .driver   = "virtio-net-pci",\
819             .property = "event_idx",\
820             .value    = "off",\
821         },{\
822             .driver   = "virtio-balloon-pci",\
823             .property = "event_idx",\
824             .value    = "off",\
825         },{\
826             .driver   = "qxl",\
827             .property = "revision",\
828             .value    = stringify(2),\
829         },{\
830             .driver   = "qxl-vga",\
831             .property = "revision",\
832             .value    = stringify(2),\
833         },
834 
835 static void pc_i440fx_0_14_machine_options(MachineClass *m)
836 {
837     pc_i440fx_0_15_machine_options(m);
838     m->hw_version = "0.14";
839     SET_MACHINE_COMPAT(m, PC_COMPAT_0_14);
840 }
841 
842 DEFINE_I440FX_MACHINE(v0_14, "pc-0.14", pc_compat_1_2,
843                       pc_i440fx_0_14_machine_options);
844 
845 
846 #define PC_COMPAT_0_13 \
847         PC_CPU_MODEL_IDS("0.13") \
848         {\
849             .driver   = TYPE_PCI_DEVICE,\
850             .property = "command_serr_enable",\
851             .value    = "off",\
852         },{\
853             .driver   = "AC97",\
854             .property = "use_broken_id",\
855             .value    = stringify(1),\
856         },{\
857             .driver   = "virtio-9p-pci",\
858             .property = "vectors",\
859             .value    = stringify(0),\
860         },{\
861             .driver   = "VGA",\
862             .property = "rombar",\
863             .value    = stringify(0),\
864         },{\
865             .driver   = "vmware-svga",\
866             .property = "rombar",\
867             .value    = stringify(0),\
868         },
869 
870 static void pc_i440fx_0_13_machine_options(MachineClass *m)
871 {
872     PCMachineClass *pcmc = PC_MACHINE_CLASS(m);
873     pc_i440fx_0_14_machine_options(m);
874     m->hw_version = "0.13";
875     SET_MACHINE_COMPAT(m, PC_COMPAT_0_13);
876     pcmc->kvmclock_enabled = false;
877 }
878 
879 DEFINE_I440FX_MACHINE(v0_13, "pc-0.13", pc_compat_0_13,
880                       pc_i440fx_0_13_machine_options);
881 
882 
883 #define PC_COMPAT_0_12 \
884         PC_CPU_MODEL_IDS("0.12") \
885         {\
886             .driver   = "virtio-serial-pci",\
887             .property = "max_ports",\
888             .value    = stringify(1),\
889         },{\
890             .driver   = "virtio-serial-pci",\
891             .property = "vectors",\
892             .value    = stringify(0),\
893         },{\
894             .driver   = "usb-mouse",\
895             .property = "serial",\
896             .value    = "1",\
897         },{\
898             .driver   = "usb-tablet",\
899             .property = "serial",\
900             .value    = "1",\
901         },{\
902             .driver   = "usb-kbd",\
903             .property = "serial",\
904             .value    = "1",\
905         },
906 
907 static void pc_i440fx_0_12_machine_options(MachineClass *m)
908 {
909     pc_i440fx_0_13_machine_options(m);
910     m->hw_version = "0.12";
911     SET_MACHINE_COMPAT(m, PC_COMPAT_0_12);
912 }
913 
914 DEFINE_I440FX_MACHINE(v0_12, "pc-0.12", pc_compat_0_13,
915                       pc_i440fx_0_12_machine_options);
916 
917 
918 #define PC_COMPAT_0_11 \
919         PC_CPU_MODEL_IDS("0.11") \
920         {\
921             .driver   = "virtio-blk-pci",\
922             .property = "vectors",\
923             .value    = stringify(0),\
924         },{\
925             .driver   = TYPE_PCI_DEVICE,\
926             .property = "rombar",\
927             .value    = stringify(0),\
928         },{\
929             .driver   = "ide-drive",\
930             .property = "ver",\
931             .value    = "0.11",\
932         },{\
933             .driver   = "scsi-disk",\
934             .property = "ver",\
935             .value    = "0.11",\
936         },
937 
938 static void pc_i440fx_0_11_machine_options(MachineClass *m)
939 {
940     pc_i440fx_0_12_machine_options(m);
941     m->hw_version = "0.11";
942     SET_MACHINE_COMPAT(m, PC_COMPAT_0_11);
943 }
944 
945 DEFINE_I440FX_MACHINE(v0_11, "pc-0.11", pc_compat_0_13,
946                       pc_i440fx_0_11_machine_options);
947 
948 
949 #define PC_COMPAT_0_10 \
950     PC_CPU_MODEL_IDS("0.10") \
951     {\
952         .driver   = "virtio-blk-pci",\
953         .property = "class",\
954         .value    = stringify(PCI_CLASS_STORAGE_OTHER),\
955     },{\
956         .driver   = "virtio-serial-pci",\
957         .property = "class",\
958         .value    = stringify(PCI_CLASS_DISPLAY_OTHER),\
959     },{\
960         .driver   = "virtio-net-pci",\
961         .property = "vectors",\
962         .value    = stringify(0),\
963     },{\
964         .driver   = "ide-drive",\
965         .property = "ver",\
966         .value    = "0.10",\
967     },{\
968         .driver   = "scsi-disk",\
969         .property = "ver",\
970         .value    = "0.10",\
971     },
972 
973 static void pc_i440fx_0_10_machine_options(MachineClass *m)
974 {
975     pc_i440fx_0_11_machine_options(m);
976     m->hw_version = "0.10";
977     SET_MACHINE_COMPAT(m, PC_COMPAT_0_10);
978 }
979 
980 DEFINE_I440FX_MACHINE(v0_10, "pc-0.10", pc_compat_0_13,
981                       pc_i440fx_0_10_machine_options);
982 
983 typedef struct {
984     uint16_t gpu_device_id;
985     uint16_t pch_device_id;
986     uint8_t pch_revision_id;
987 } IGDDeviceIDInfo;
988 
989 /* In real world different GPU should have different PCH. But actually
990  * the different PCH DIDs likely map to different PCH SKUs. We do the
991  * same thing for the GPU. For PCH, the different SKUs are going to be
992  * all the same silicon design and implementation, just different
993  * features turn on and off with fuses. The SW interfaces should be
994  * consistent across all SKUs in a given family (eg LPT). But just same
995  * features may not be supported.
996  *
997  * Most of these different PCH features probably don't matter to the
998  * Gfx driver, but obviously any difference in display port connections
999  * will so it should be fine with any PCH in case of passthrough.
1000  *
1001  * So currently use one PCH version, 0x8c4e, to cover all HSW(Haswell)
1002  * scenarios, 0x9cc3 for BDW(Broadwell).
1003  */
1004 static const IGDDeviceIDInfo igd_combo_id_infos[] = {
1005     /* HSW Classic */
1006     {0x0402, 0x8c4e, 0x04}, /* HSWGT1D, HSWD_w7 */
1007     {0x0406, 0x8c4e, 0x04}, /* HSWGT1M, HSWM_w7 */
1008     {0x0412, 0x8c4e, 0x04}, /* HSWGT2D, HSWD_w7 */
1009     {0x0416, 0x8c4e, 0x04}, /* HSWGT2M, HSWM_w7 */
1010     {0x041E, 0x8c4e, 0x04}, /* HSWGT15D, HSWD_w7 */
1011     /* HSW ULT */
1012     {0x0A06, 0x8c4e, 0x04}, /* HSWGT1UT, HSWM_w7 */
1013     {0x0A16, 0x8c4e, 0x04}, /* HSWGT2UT, HSWM_w7 */
1014     {0x0A26, 0x8c4e, 0x06}, /* HSWGT3UT, HSWM_w7 */
1015     {0x0A2E, 0x8c4e, 0x04}, /* HSWGT3UT28W, HSWM_w7 */
1016     {0x0A1E, 0x8c4e, 0x04}, /* HSWGT2UX, HSWM_w7 */
1017     {0x0A0E, 0x8c4e, 0x04}, /* HSWGT1ULX, HSWM_w7 */
1018     /* HSW CRW */
1019     {0x0D26, 0x8c4e, 0x04}, /* HSWGT3CW, HSWM_w7 */
1020     {0x0D22, 0x8c4e, 0x04}, /* HSWGT3CWDT, HSWD_w7 */
1021     /* HSW Server */
1022     {0x041A, 0x8c4e, 0x04}, /* HSWSVGT2, HSWD_w7 */
1023     /* HSW SRVR */
1024     {0x040A, 0x8c4e, 0x04}, /* HSWSVGT1, HSWD_w7 */
1025     /* BSW */
1026     {0x1606, 0x9cc3, 0x03}, /* BDWULTGT1, BDWM_w7 */
1027     {0x1616, 0x9cc3, 0x03}, /* BDWULTGT2, BDWM_w7 */
1028     {0x1626, 0x9cc3, 0x03}, /* BDWULTGT3, BDWM_w7 */
1029     {0x160E, 0x9cc3, 0x03}, /* BDWULXGT1, BDWM_w7 */
1030     {0x161E, 0x9cc3, 0x03}, /* BDWULXGT2, BDWM_w7 */
1031     {0x1602, 0x9cc3, 0x03}, /* BDWHALOGT1, BDWM_w7 */
1032     {0x1612, 0x9cc3, 0x03}, /* BDWHALOGT2, BDWM_w7 */
1033     {0x1622, 0x9cc3, 0x03}, /* BDWHALOGT3, BDWM_w7 */
1034     {0x162B, 0x9cc3, 0x03}, /* BDWHALO28W, BDWM_w7 */
1035     {0x162A, 0x9cc3, 0x03}, /* BDWGT3WRKS, BDWM_w7 */
1036     {0x162D, 0x9cc3, 0x03}, /* BDWGT3SRVR, BDWM_w7 */
1037 };
1038 
1039 static void isa_bridge_class_init(ObjectClass *klass, void *data)
1040 {
1041     DeviceClass *dc = DEVICE_CLASS(klass);
1042     PCIDeviceClass *k = PCI_DEVICE_CLASS(klass);
1043 
1044     dc->desc        = "ISA bridge faked to support IGD PT";
1045     k->vendor_id    = PCI_VENDOR_ID_INTEL;
1046     k->class_id     = PCI_CLASS_BRIDGE_ISA;
1047 };
1048 
1049 static TypeInfo isa_bridge_info = {
1050     .name          = "igd-passthrough-isa-bridge",
1051     .parent        = TYPE_PCI_DEVICE,
1052     .instance_size = sizeof(PCIDevice),
1053     .class_init = isa_bridge_class_init,
1054 };
1055 
1056 static void pt_graphics_register_types(void)
1057 {
1058     type_register_static(&isa_bridge_info);
1059 }
1060 type_init(pt_graphics_register_types)
1061 
1062 void igd_passthrough_isa_bridge_create(PCIBus *bus, uint16_t gpu_dev_id)
1063 {
1064     struct PCIDevice *bridge_dev;
1065     int i, num;
1066     uint16_t pch_dev_id = 0xffff;
1067     uint8_t pch_rev_id;
1068 
1069     num = ARRAY_SIZE(igd_combo_id_infos);
1070     for (i = 0; i < num; i++) {
1071         if (gpu_dev_id == igd_combo_id_infos[i].gpu_device_id) {
1072             pch_dev_id = igd_combo_id_infos[i].pch_device_id;
1073             pch_rev_id = igd_combo_id_infos[i].pch_revision_id;
1074         }
1075     }
1076 
1077     if (pch_dev_id == 0xffff) {
1078         return;
1079     }
1080 
1081     /* Currently IGD drivers always need to access PCH by 1f.0. */
1082     bridge_dev = pci_create_simple(bus, PCI_DEVFN(0x1f, 0),
1083                                    "igd-passthrough-isa-bridge");
1084 
1085     /*
1086      * Note that vendor id is always PCI_VENDOR_ID_INTEL.
1087      */
1088     if (!bridge_dev) {
1089         fprintf(stderr, "set igd-passthrough-isa-bridge failed!\n");
1090         return;
1091     }
1092     pci_config_set_device_id(bridge_dev->config, pch_dev_id);
1093     pci_config_set_revision(bridge_dev->config, pch_rev_id);
1094 }
1095 
1096 static void isapc_machine_options(MachineClass *m)
1097 {
1098     PCMachineClass *pcmc = PC_MACHINE_CLASS(m);
1099     m->desc = "ISA-only PC";
1100     m->max_cpus = 1;
1101     m->option_rom_has_mr = true;
1102     m->rom_file_has_mr = false;
1103     pcmc->pci_enabled = false;
1104     pcmc->has_acpi_build = false;
1105     pcmc->smbios_defaults = false;
1106     pcmc->gigabyte_align = false;
1107     pcmc->smbios_legacy_mode = true;
1108     pcmc->has_reserved_memory = false;
1109 }
1110 
1111 DEFINE_PC_MACHINE(isapc, "isapc", pc_init_isa,
1112                   isapc_machine_options);
1113 
1114 
1115 #ifdef CONFIG_XEN
1116 static void xenfv_machine_options(MachineClass *m)
1117 {
1118     m->desc = "Xen Fully-virtualized PC";
1119     m->max_cpus = HVM_MAX_VCPUS;
1120     m->default_machine_opts = "accel=xen";
1121     m->hot_add_cpu = pc_hot_add_cpu;
1122 }
1123 
1124 DEFINE_PC_MACHINE(xenfv, "xenfv", pc_xen_hvm_init,
1125                   xenfv_machine_options);
1126 #endif
1127