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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/timer/mc146818rtc.h"
37 #include "hw/xen/xen.h"
38 #include "sysemu/kvm.h"
39 #include "hw/kvm/clock.h"
40 #include "hw/pci-host/q35.h"
41 #include "hw/qdev-properties.h"
42 #include "exec/address-spaces.h"
43 #include "hw/i386/x86.h"
44 #include "hw/i386/pc.h"
45 #include "hw/i386/ich9.h"
46 #include "hw/i386/amd_iommu.h"
47 #include "hw/i386/intel_iommu.h"
48 #include "hw/display/ramfb.h"
49 #include "hw/firmware/smbios.h"
50 #include "hw/ide/pci.h"
51 #include "hw/ide/ahci.h"
52 #include "hw/usb.h"
53 #include "qapi/error.h"
54 #include "qemu/error-report.h"
55 #include "sysemu/numa.h"
56
57 /* ICH9 AHCI has 6 ports */
58 #define MAX_SATA_PORTS 6
59
60 struct ehci_companions {
61 const char *name;
62 int func;
63 int port;
64 };
65
66 static const struct ehci_companions ich9_1d[] = {
67 { .name = "ich9-usb-uhci1", .func = 0, .port = 0 },
68 { .name = "ich9-usb-uhci2", .func = 1, .port = 2 },
69 { .name = "ich9-usb-uhci3", .func = 2, .port = 4 },
70 };
71
72 static const struct ehci_companions ich9_1a[] = {
73 { .name = "ich9-usb-uhci4", .func = 0, .port = 0 },
74 { .name = "ich9-usb-uhci5", .func = 1, .port = 2 },
75 { .name = "ich9-usb-uhci6", .func = 2, .port = 4 },
76 };
77
78 static int ehci_create_ich9_with_companions(PCIBus *bus, int slot)
79 {
80 const struct ehci_companions *comp;
81 PCIDevice *ehci, *uhci;
82 BusState *usbbus;
83 const char *name;
84 int i;
85
86 switch (slot) {
87 case 0x1d:
88 name = "ich9-usb-ehci1";
89 comp = ich9_1d;
90 break;
91 case 0x1a:
92 name = "ich9-usb-ehci2";
93 comp = ich9_1a;
94 break;
95 default:
96 return -1;
97 }
98
99 ehci = pci_create_multifunction(bus, PCI_DEVFN(slot, 7), true, name);
100 qdev_init_nofail(&ehci->qdev);
101 usbbus = QLIST_FIRST(&ehci->qdev.child_bus);
102
103 for (i = 0; i < 3; i++) {
104 uhci = pci_create_multifunction(bus, PCI_DEVFN(slot, comp[i].func),
105 true, comp[i].name);
106 qdev_prop_set_string(&uhci->qdev, "masterbus", usbbus->name);
107 qdev_prop_set_uint32(&uhci->qdev, "firstport", comp[i].port);
108 qdev_init_nofail(&uhci->qdev);
109 }
110 return 0;
111 }
112
113 /* PC hardware initialisation */
114 static void pc_q35_init(MachineState *machine)
115 {
116 PCMachineState *pcms = PC_MACHINE(machine);
117 PCMachineClass *pcmc = PC_MACHINE_GET_CLASS(pcms);
118 X86MachineState *x86ms = X86_MACHINE(machine);
119 Q35PCIHost *q35_host;
120 PCIHostState *phb;
121 PCIBus *host_bus;
122 PCIDevice *lpc;
123 DeviceState *lpc_dev;
124 BusState *idebus[MAX_SATA_PORTS];
125 ISADevice *rtc_state;
126 MemoryRegion *system_io = get_system_io();
127 MemoryRegion *pci_memory;
128 MemoryRegion *rom_memory;
129 MemoryRegion *ram_memory;
130 GSIState *gsi_state;
131 ISABus *isa_bus;
132 int i;
133 ICH9LPCState *ich9_lpc;
134 PCIDevice *ahci;
135 ram_addr_t lowmem;
136 DriveInfo *hd[MAX_SATA_PORTS];
137 MachineClass *mc = MACHINE_GET_CLASS(machine);
138
139 /* Check whether RAM fits below 4G (leaving 1/2 GByte for IO memory
140 * and 256 Mbytes for PCI Express Enhanced Configuration Access Mapping
141 * also known as MMCFG).
142 * If it doesn't, we need to split it in chunks below and above 4G.
143 * In any case, try to make sure that guest addresses aligned at
144 * 1G boundaries get mapped to host addresses aligned at 1G boundaries.
145 */
146 if (machine->ram_size >= 0xb0000000) {
147 lowmem = 0x80000000;
148 } else {
149 lowmem = 0xb0000000;
150 }
151
152 /* Handle the machine opt max-ram-below-4g. It is basically doing
153 * min(qemu limit, user limit).
154 */
155 if (!x86ms->max_ram_below_4g) {
156 x86ms->max_ram_below_4g = 4 * GiB;
157 }
158 if (lowmem > x86ms->max_ram_below_4g) {
159 lowmem = x86ms->max_ram_below_4g;
160 if (machine->ram_size - lowmem > lowmem &&
161 lowmem & (1 * GiB - 1)) {
162 warn_report("There is possibly poor performance as the ram size "
163 " (0x%" PRIx64 ") is more then twice the size of"
164 " max-ram-below-4g (%"PRIu64") and"
165 " max-ram-below-4g is not a multiple of 1G.",
166 (uint64_t)machine->ram_size, x86ms->max_ram_below_4g);
167 }
168 }
169
170 if (machine->ram_size >= lowmem) {
171 x86ms->above_4g_mem_size = machine->ram_size - lowmem;
172 x86ms->below_4g_mem_size = lowmem;
173 } else {
174 x86ms->above_4g_mem_size = 0;
175 x86ms->below_4g_mem_size = machine->ram_size;
176 }
177
178 if (xen_enabled()) {
179 xen_hvm_init(pcms, &ram_memory);
180 }
181
182 x86_cpus_init(x86ms, pcmc->default_cpu_version);
183
184 kvmclock_create();
185
186 /* pci enabled */
187 if (pcmc->pci_enabled) {
188 pci_memory = g_new(MemoryRegion, 1);
189 memory_region_init(pci_memory, NULL, "pci", UINT64_MAX);
190 rom_memory = pci_memory;
191 } else {
192 pci_memory = NULL;
193 rom_memory = get_system_memory();
194 }
195
196 pc_guest_info_init(pcms);
197
198 if (pcmc->smbios_defaults) {
199 /* These values are guest ABI, do not change */
200 smbios_set_defaults("QEMU", "Standard PC (Q35 + ICH9, 2009)",
201 mc->name, pcmc->smbios_legacy_mode,
202 pcmc->smbios_uuid_encoded,
203 SMBIOS_ENTRY_POINT_21);
204 }
205
206 /* allocate ram and load rom/bios */
207 if (!xen_enabled()) {
208 pc_memory_init(pcms, get_system_memory(),
209 rom_memory, &ram_memory);
210 }
211
212 /* create pci host bus */
213 q35_host = Q35_HOST_DEVICE(qdev_create(NULL, TYPE_Q35_HOST_DEVICE));
214
215 object_property_add_child(qdev_get_machine(), "q35", OBJECT(q35_host), NULL);
216 object_property_set_link(OBJECT(q35_host), OBJECT(ram_memory),
217 MCH_HOST_PROP_RAM_MEM, NULL);
218 object_property_set_link(OBJECT(q35_host), OBJECT(pci_memory),
219 MCH_HOST_PROP_PCI_MEM, NULL);
220 object_property_set_link(OBJECT(q35_host), OBJECT(get_system_memory()),
221 MCH_HOST_PROP_SYSTEM_MEM, NULL);
222 object_property_set_link(OBJECT(q35_host), OBJECT(system_io),
223 MCH_HOST_PROP_IO_MEM, NULL);
224 object_property_set_int(OBJECT(q35_host), x86ms->below_4g_mem_size,
225 PCI_HOST_BELOW_4G_MEM_SIZE, NULL);
226 object_property_set_int(OBJECT(q35_host), x86ms->above_4g_mem_size,
227 PCI_HOST_ABOVE_4G_MEM_SIZE, NULL);
228 /* pci */
229 qdev_init_nofail(DEVICE(q35_host));
230 phb = PCI_HOST_BRIDGE(q35_host);
231 host_bus = phb->bus;
232 /* create ISA bus */
233 lpc = pci_create_simple_multifunction(host_bus, PCI_DEVFN(ICH9_LPC_DEV,
234 ICH9_LPC_FUNC), true,
235 TYPE_ICH9_LPC_DEVICE);
236
237 object_property_add_link(OBJECT(machine), PC_MACHINE_ACPI_DEVICE_PROP,
238 TYPE_HOTPLUG_HANDLER,
239 (Object **)&pcms->acpi_dev,
240 object_property_allow_set_link,
241 OBJ_PROP_LINK_STRONG, &error_abort);
242 object_property_set_link(OBJECT(machine), OBJECT(lpc),
243 PC_MACHINE_ACPI_DEVICE_PROP, &error_abort);
244
245 /* irq lines */
246 gsi_state = pc_gsi_create(&x86ms->gsi, pcmc->pci_enabled);
247
248 ich9_lpc = ICH9_LPC_DEVICE(lpc);
249 lpc_dev = DEVICE(lpc);
250 for (i = 0; i < GSI_NUM_PINS; i++) {
251 qdev_connect_gpio_out_named(lpc_dev, ICH9_GPIO_GSI, i, x86ms->gsi[i]);
252 }
253 pci_bus_irqs(host_bus, ich9_lpc_set_irq, ich9_lpc_map_irq, ich9_lpc,
254 ICH9_LPC_NB_PIRQS);
255 pci_bus_set_route_irq_fn(host_bus, ich9_route_intx_pin_to_irq);
256 isa_bus = ich9_lpc->isa_bus;
257
258 pc_i8259_create(isa_bus, gsi_state->i8259_irq);
259
260 if (pcmc->pci_enabled) {
261 ioapic_init_gsi(gsi_state, "q35");
262 }
263
264 pc_register_ferr_irq(x86ms->gsi[13]);
265
266 assert(pcms->vmport != ON_OFF_AUTO__MAX);
267 if (pcms->vmport == ON_OFF_AUTO_AUTO) {
268 pcms->vmport = xen_enabled() ? ON_OFF_AUTO_OFF : ON_OFF_AUTO_ON;
269 }
270
271 /* init basic PC hardware */
272 pc_basic_device_init(isa_bus, x86ms->gsi, &rtc_state, !mc->no_floppy,
273 (pcms->vmport != ON_OFF_AUTO_ON), pcms->pit_enabled,
274 0xff0104);
275
276 /* connect pm stuff to lpc */
277 ich9_lpc_pm_init(lpc, pc_machine_is_smm_enabled(pcms));
278
279 if (pcms->sata_enabled) {
280 /* ahci and SATA device, for q35 1 ahci controller is built-in */
281 ahci = pci_create_simple_multifunction(host_bus,
282 PCI_DEVFN(ICH9_SATA1_DEV,
283 ICH9_SATA1_FUNC),
284 true, "ich9-ahci");
285 idebus[0] = qdev_get_child_bus(&ahci->qdev, "ide.0");
286 idebus[1] = qdev_get_child_bus(&ahci->qdev, "ide.1");
287 g_assert(MAX_SATA_PORTS == ahci_get_num_ports(ahci));
288 ide_drive_get(hd, ahci_get_num_ports(ahci));
289 ahci_ide_create_devs(ahci, hd);
290 } else {
291 idebus[0] = idebus[1] = NULL;
292 }
293
294 if (machine_usb(machine)) {
295 /* Should we create 6 UHCI according to ich9 spec? */
296 ehci_create_ich9_with_companions(host_bus, 0x1d);
297 }
298
299 if (pcms->smbus_enabled) {
300 /* TODO: Populate SPD eeprom data. */
301 pcms->smbus = ich9_smb_init(host_bus,
302 PCI_DEVFN(ICH9_SMB_DEV, ICH9_SMB_FUNC),
303 0xb100);
304 smbus_eeprom_init(pcms->smbus, 8, NULL, 0);
305 }
306
307 pc_cmos_init(pcms, idebus[0], idebus[1], rtc_state);
308
309 /* the rest devices to which pci devfn is automatically assigned */
310 pc_vga_init(isa_bus, host_bus);
311 pc_nic_init(pcmc, isa_bus, host_bus);
312
313 if (machine->nvdimms_state->is_enabled) {
314 nvdimm_init_acpi_state(machine->nvdimms_state, system_io,
315 x86ms->fw_cfg, OBJECT(pcms));
316 }
317 }
318
319 #define DEFINE_Q35_MACHINE(suffix, name, compatfn, optionfn) \
320 static void pc_init_##suffix(MachineState *machine) \
321 { \
322 void (*compat)(MachineState *m) = (compatfn); \
323 if (compat) { \
324 compat(machine); \
325 } \
326 pc_q35_init(machine); \
327 } \
328 DEFINE_PC_MACHINE(suffix, name, pc_init_##suffix, optionfn)
329
330
331 static void pc_q35_machine_options(MachineClass *m)
332 {
333 PCMachineClass *pcmc = PC_MACHINE_CLASS(m);
334 pcmc->default_nic_model = "e1000e";
335
336 m->family = "pc_q35";
337 m->desc = "Standard PC (Q35 + ICH9, 2009)";
338 m->units_per_default_bus = 1;
339 m->default_machine_opts = "firmware=bios-256k.bin";
340 m->default_display = "std";
341 m->default_kernel_irqchip_split = false;
342 m->no_floppy = 1;
343 machine_class_allow_dynamic_sysbus_dev(m, TYPE_AMD_IOMMU_DEVICE);
344 machine_class_allow_dynamic_sysbus_dev(m, TYPE_INTEL_IOMMU_DEVICE);
345 machine_class_allow_dynamic_sysbus_dev(m, TYPE_RAMFB_DEVICE);
346 m->max_cpus = 288;
347 }
348
349 static void pc_q35_4_2_machine_options(MachineClass *m)
350 {
351 PCMachineClass *pcmc = PC_MACHINE_CLASS(m);
352 pc_q35_machine_options(m);
353 m->alias = "q35";
354 pcmc->default_cpu_version = 1;
355 }
356
357 DEFINE_Q35_MACHINE(v4_2, "pc-q35-4.2", NULL,
358 pc_q35_4_2_machine_options);
359
360 static void pc_q35_4_1_machine_options(MachineClass *m)
361 {
362 pc_q35_4_2_machine_options(m);
363 m->alias = NULL;
364 compat_props_add(m->compat_props, hw_compat_4_1, hw_compat_4_1_len);
365 compat_props_add(m->compat_props, pc_compat_4_1, pc_compat_4_1_len);
366 }
367
368 DEFINE_Q35_MACHINE(v4_1, "pc-q35-4.1", NULL,
369 pc_q35_4_1_machine_options);
370
371 static void pc_q35_4_0_1_machine_options(MachineClass *m)
372 {
373 PCMachineClass *pcmc = PC_MACHINE_CLASS(m);
374 pc_q35_4_1_machine_options(m);
375 m->alias = NULL;
376 pcmc->default_cpu_version = CPU_VERSION_LEGACY;
377 /*
378 * This is the default machine for the 4.0-stable branch. It is basically
379 * a 4.0 that doesn't use split irqchip by default. It MUST hence apply the
380 * 4.0 compat props.
381 */
382 compat_props_add(m->compat_props, hw_compat_4_0, hw_compat_4_0_len);
383 compat_props_add(m->compat_props, pc_compat_4_0, pc_compat_4_0_len);
384 }
385
386 DEFINE_Q35_MACHINE(v4_0_1, "pc-q35-4.0.1", NULL,
387 pc_q35_4_0_1_machine_options);
388
389 static void pc_q35_4_0_machine_options(MachineClass *m)
390 {
391 pc_q35_4_0_1_machine_options(m);
392 m->default_kernel_irqchip_split = true;
393 m->alias = NULL;
394 /* Compat props are applied by the 4.0.1 machine */
395 }
396
397 DEFINE_Q35_MACHINE(v4_0, "pc-q35-4.0", NULL,
398 pc_q35_4_0_machine_options);
399
400 static void pc_q35_3_1_machine_options(MachineClass *m)
401 {
402 PCMachineClass *pcmc = PC_MACHINE_CLASS(m);
403
404 pc_q35_4_0_machine_options(m);
405 m->default_kernel_irqchip_split = false;
406 pcmc->do_not_add_smb_acpi = true;
407 m->smbus_no_migration_support = true;
408 m->alias = NULL;
409 pcmc->pvh_enabled = false;
410 compat_props_add(m->compat_props, hw_compat_3_1, hw_compat_3_1_len);
411 compat_props_add(m->compat_props, pc_compat_3_1, pc_compat_3_1_len);
412 }
413
414 DEFINE_Q35_MACHINE(v3_1, "pc-q35-3.1", NULL,
415 pc_q35_3_1_machine_options);
416
417 static void pc_q35_3_0_machine_options(MachineClass *m)
418 {
419 pc_q35_3_1_machine_options(m);
420 compat_props_add(m->compat_props, hw_compat_3_0, hw_compat_3_0_len);
421 compat_props_add(m->compat_props, pc_compat_3_0, pc_compat_3_0_len);
422 }
423
424 DEFINE_Q35_MACHINE(v3_0, "pc-q35-3.0", NULL,
425 pc_q35_3_0_machine_options);
426
427 static void pc_q35_2_12_machine_options(MachineClass *m)
428 {
429 pc_q35_3_0_machine_options(m);
430 compat_props_add(m->compat_props, hw_compat_2_12, hw_compat_2_12_len);
431 compat_props_add(m->compat_props, pc_compat_2_12, pc_compat_2_12_len);
432 }
433
434 DEFINE_Q35_MACHINE(v2_12, "pc-q35-2.12", NULL,
435 pc_q35_2_12_machine_options);
436
437 static void pc_q35_2_11_machine_options(MachineClass *m)
438 {
439 PCMachineClass *pcmc = PC_MACHINE_CLASS(m);
440
441 pc_q35_2_12_machine_options(m);
442 pcmc->default_nic_model = "e1000";
443 compat_props_add(m->compat_props, hw_compat_2_11, hw_compat_2_11_len);
444 compat_props_add(m->compat_props, pc_compat_2_11, pc_compat_2_11_len);
445 }
446
447 DEFINE_Q35_MACHINE(v2_11, "pc-q35-2.11", NULL,
448 pc_q35_2_11_machine_options);
449
450 static void pc_q35_2_10_machine_options(MachineClass *m)
451 {
452 pc_q35_2_11_machine_options(m);
453 compat_props_add(m->compat_props, hw_compat_2_10, hw_compat_2_10_len);
454 compat_props_add(m->compat_props, pc_compat_2_10, pc_compat_2_10_len);
455 m->numa_auto_assign_ram = numa_legacy_auto_assign_ram;
456 m->auto_enable_numa_with_memhp = false;
457 }
458
459 DEFINE_Q35_MACHINE(v2_10, "pc-q35-2.10", NULL,
460 pc_q35_2_10_machine_options);
461
462 static void pc_q35_2_9_machine_options(MachineClass *m)
463 {
464 pc_q35_2_10_machine_options(m);
465 compat_props_add(m->compat_props, hw_compat_2_9, hw_compat_2_9_len);
466 compat_props_add(m->compat_props, pc_compat_2_9, pc_compat_2_9_len);
467 }
468
469 DEFINE_Q35_MACHINE(v2_9, "pc-q35-2.9", NULL,
470 pc_q35_2_9_machine_options);
471
472 static void pc_q35_2_8_machine_options(MachineClass *m)
473 {
474 pc_q35_2_9_machine_options(m);
475 compat_props_add(m->compat_props, hw_compat_2_8, hw_compat_2_8_len);
476 compat_props_add(m->compat_props, pc_compat_2_8, pc_compat_2_8_len);
477 }
478
479 DEFINE_Q35_MACHINE(v2_8, "pc-q35-2.8", NULL,
480 pc_q35_2_8_machine_options);
481
482 static void pc_q35_2_7_machine_options(MachineClass *m)
483 {
484 pc_q35_2_8_machine_options(m);
485 m->max_cpus = 255;
486 compat_props_add(m->compat_props, hw_compat_2_7, hw_compat_2_7_len);
487 compat_props_add(m->compat_props, pc_compat_2_7, pc_compat_2_7_len);
488 }
489
490 DEFINE_Q35_MACHINE(v2_7, "pc-q35-2.7", NULL,
491 pc_q35_2_7_machine_options);
492
493 static void pc_q35_2_6_machine_options(MachineClass *m)
494 {
495 PCMachineClass *pcmc = PC_MACHINE_CLASS(m);
496
497 pc_q35_2_7_machine_options(m);
498 pcmc->legacy_cpu_hotplug = true;
499 pcmc->linuxboot_dma_enabled = false;
500 compat_props_add(m->compat_props, hw_compat_2_6, hw_compat_2_6_len);
501 compat_props_add(m->compat_props, pc_compat_2_6, pc_compat_2_6_len);
502 }
503
504 DEFINE_Q35_MACHINE(v2_6, "pc-q35-2.6", NULL,
505 pc_q35_2_6_machine_options);
506
507 static void pc_q35_2_5_machine_options(MachineClass *m)
508 {
509 PCMachineClass *pcmc = PC_MACHINE_CLASS(m);
510
511 pc_q35_2_6_machine_options(m);
512 pcmc->save_tsc_khz = false;
513 m->legacy_fw_cfg_order = 1;
514 compat_props_add(m->compat_props, hw_compat_2_5, hw_compat_2_5_len);
515 compat_props_add(m->compat_props, pc_compat_2_5, pc_compat_2_5_len);
516 }
517
518 DEFINE_Q35_MACHINE(v2_5, "pc-q35-2.5", NULL,
519 pc_q35_2_5_machine_options);
520
521 static void pc_q35_2_4_machine_options(MachineClass *m)
522 {
523 PCMachineClass *pcmc = PC_MACHINE_CLASS(m);
524
525 pc_q35_2_5_machine_options(m);
526 m->hw_version = "2.4.0";
527 pcmc->broken_reserved_end = true;
528 compat_props_add(m->compat_props, hw_compat_2_4, hw_compat_2_4_len);
529 compat_props_add(m->compat_props, pc_compat_2_4, pc_compat_2_4_len);
530 }
531
532 DEFINE_Q35_MACHINE(v2_4, "pc-q35-2.4", NULL,
533 pc_q35_2_4_machine_options);