2 * QEMU PC System Emulator
4 * Copyright (c) 2003-2004 Fabrice Bellard
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:
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
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
28 #include "hw/loader.h"
29 #include "hw/i386/pc.h"
30 #include "hw/i386/apic.h"
31 #include "hw/i386/smbios.h"
32 #include "hw/pci/pci.h"
33 #include "hw/pci/pci_ids.h"
36 #include "hw/boards.h"
38 #include "sysemu/kvm.h"
39 #include "hw/kvm/clock.h"
40 #include "sysemu/sysemu.h"
41 #include "hw/sysbus.h"
42 #include "hw/cpu/icc_bus.h"
43 #include "sysemu/arch_init.h"
44 #include "sysemu/blockdev.h"
45 #include "hw/i2c/smbus.h"
46 #include "hw/xen/xen.h"
47 #include "exec/memory.h"
48 #include "exec/address-spaces.h"
49 #include "hw/acpi/acpi.h"
52 # include <xen/hvm/hvm_info_table.h>
57 static const int ide_iobase[MAX_IDE_BUS] = { 0x1f0, 0x170 };
58 static const int ide_iobase2[MAX_IDE_BUS] = { 0x3f6, 0x376 };
59 static const int ide_irq[MAX_IDE_BUS] = { 14, 15 };
61 static bool has_pci_info;
62 static bool has_acpi_build = true;
63 static bool smbios_type1_defaults = true;
64 /* Make sure that guest addresses aligned at 1Gbyte boundaries get mapped to
65 * host addresses aligned at 1Gbyte boundaries. This way we can use 1GByte
68 static bool gigabyte_align = true;
70 /* PC hardware initialisation */
71 static void pc_init1(QEMUMachineInitArgs *args,
75 MemoryRegion *system_memory = get_system_memory();
76 MemoryRegion *system_io = get_system_io();
78 ram_addr_t below_4g_mem_size, above_4g_mem_size;
81 PCII440FXState *i440fx_state;
88 DriveInfo *hd[MAX_IDE_BUS * MAX_IDE_DEVS];
89 BusState *idebus[MAX_IDE_BUS];
92 MemoryRegion *ram_memory;
93 MemoryRegion *pci_memory;
94 MemoryRegion *rom_memory;
95 DeviceState *icc_bridge;
96 FWCfgState *fw_cfg = NULL;
97 PcGuestInfo *guest_info;
99 if (xen_enabled() && xen_hvm_init(&ram_memory) != 0) {
100 fprintf(stderr, "xen hardware virtual machine initialisation failed\n");
104 icc_bridge = qdev_create(NULL, TYPE_ICC_BRIDGE);
105 object_property_add_child(qdev_get_machine(), "icc-bridge",
106 OBJECT(icc_bridge), NULL);
108 pc_cpus_init(args->cpu_model, icc_bridge);
110 if (kvm_enabled() && kvmclock_enabled) {
114 /* Check whether RAM fits below 4G (leaving 1/2 GByte for IO memory).
115 * If it doesn't, we need to split it in chunks below and above 4G.
116 * In any case, try to make sure that guest addresses aligned at
117 * 1G boundaries get mapped to host addresses aligned at 1G boundaries.
118 * For old machine types, use whatever split we used historically to avoid
119 * breaking migration.
121 if (args->ram_size >= 0xe0000000) {
122 ram_addr_t lowmem = gigabyte_align ? 0xc0000000 : 0xe0000000;
123 above_4g_mem_size = args->ram_size - lowmem;
124 below_4g_mem_size = lowmem;
126 above_4g_mem_size = 0;
127 below_4g_mem_size = args->ram_size;
131 pci_memory = g_new(MemoryRegion, 1);
132 memory_region_init(pci_memory, NULL, "pci", UINT64_MAX);
133 rom_memory = pci_memory;
136 rom_memory = system_memory;
139 guest_info = pc_guest_info_init(below_4g_mem_size, above_4g_mem_size);
141 guest_info->has_acpi_build = has_acpi_build;
143 guest_info->has_pci_info = has_pci_info;
144 guest_info->isapc_ram_fw = !pci_enabled;
146 if (smbios_type1_defaults) {
147 /* These values are guest ABI, do not change */
148 smbios_set_type1_defaults("QEMU", "Standard PC (i440FX + PIIX, 1996)",
149 args->machine->name);
152 /* allocate ram and load rom/bios */
153 if (!xen_enabled()) {
154 fw_cfg = pc_memory_init(system_memory,
155 args->kernel_filename, args->kernel_cmdline,
156 args->initrd_filename,
157 below_4g_mem_size, above_4g_mem_size,
158 rom_memory, &ram_memory, guest_info);
161 gsi_state = g_malloc0(sizeof(*gsi_state));
162 if (kvm_irqchip_in_kernel()) {
163 kvm_pc_setup_irq_routing(pci_enabled);
164 gsi = qemu_allocate_irqs(kvm_pc_gsi_handler, gsi_state,
167 gsi = qemu_allocate_irqs(gsi_handler, gsi_state, GSI_NUM_PINS);
171 pci_bus = i440fx_init(&i440fx_state, &piix3_devfn, &isa_bus, gsi,
172 system_memory, system_io, args->ram_size,
175 pci_memory, ram_memory);
179 isa_bus = isa_bus_new(NULL, system_io);
182 isa_bus_irqs(isa_bus, gsi);
184 if (kvm_irqchip_in_kernel()) {
185 i8259 = kvm_i8259_init(isa_bus);
186 } else if (xen_enabled()) {
187 i8259 = xen_interrupt_controller_init();
189 cpu_irq = pc_allocate_cpu_irq();
190 i8259 = i8259_init(isa_bus, cpu_irq[0]);
193 for (i = 0; i < ISA_NUM_IRQS; i++) {
194 gsi_state->i8259_irq[i] = i8259[i];
197 ioapic_init_gsi(gsi_state, "i440fx");
199 qdev_init_nofail(icc_bridge);
201 pc_register_ferr_irq(gsi[13]);
203 pc_vga_init(isa_bus, pci_enabled ? pci_bus : NULL);
205 /* init basic PC hardware */
206 pc_basic_device_init(isa_bus, gsi, &rtc_state, &floppy, xen_enabled(),
209 pc_nic_init(isa_bus, pci_bus);
211 ide_drive_get(hd, MAX_IDE_BUS);
215 dev = pci_piix3_xen_ide_init(pci_bus, hd, piix3_devfn + 1);
217 dev = pci_piix3_ide_init(pci_bus, hd, piix3_devfn + 1);
219 idebus[0] = qdev_get_child_bus(&dev->qdev, "ide.0");
220 idebus[1] = qdev_get_child_bus(&dev->qdev, "ide.1");
222 for(i = 0; i < MAX_IDE_BUS; i++) {
224 dev = isa_ide_init(isa_bus, ide_iobase[i], ide_iobase2[i],
226 hd[MAX_IDE_DEVS * i], hd[MAX_IDE_DEVS * i + 1]);
227 idebus[i] = qdev_get_child_bus(DEVICE(dev), "ide.0");
231 pc_cmos_init(below_4g_mem_size, above_4g_mem_size, args->boot_order,
232 floppy, idebus[0], idebus[1], rtc_state);
234 if (pci_enabled && usb_enabled(false)) {
235 pci_create_simple(pci_bus, piix3_devfn + 2, "piix3-usb-uhci");
238 if (pci_enabled && acpi_enabled) {
241 smi_irq = qemu_allocate_irqs(pc_acpi_smi_interrupt, first_cpu, 1);
242 /* TODO: Populate SPD eeprom data. */
243 smbus = piix4_pm_init(pci_bus, piix3_devfn + 3, 0xb100,
245 kvm_enabled(), fw_cfg);
246 smbus_eeprom_init(smbus, 8, NULL, 0);
250 pc_pci_device_init(pci_bus);
254 static void pc_init_pci(QEMUMachineInitArgs *args)
256 pc_init1(args, 1, 1);
259 static void pc_compat_1_7(QEMUMachineInitArgs *args)
261 smbios_type1_defaults = false;
262 gigabyte_align = false;
265 static void pc_compat_1_6(QEMUMachineInitArgs *args)
268 has_pci_info = false;
269 rom_file_in_ram = false;
270 has_acpi_build = false;
273 static void pc_compat_1_5(QEMUMachineInitArgs *args)
278 static void pc_compat_1_4(QEMUMachineInitArgs *args)
281 x86_cpu_compat_set_features("n270", FEAT_1_ECX, 0, CPUID_EXT_MOVBE);
282 x86_cpu_compat_set_features("Westmere", FEAT_1_ECX, 0, CPUID_EXT_PCLMULQDQ);
285 static void pc_compat_1_3(QEMUMachineInitArgs *args)
288 enable_compat_apic_id_mode();
291 /* PC compat function for pc-0.14 to pc-1.2 */
292 static void pc_compat_1_2(QEMUMachineInitArgs *args)
295 disable_kvm_pv_eoi();
298 static void pc_init_pci_1_7(QEMUMachineInitArgs *args)
304 static void pc_init_pci_1_6(QEMUMachineInitArgs *args)
310 static void pc_init_pci_1_5(QEMUMachineInitArgs *args)
316 static void pc_init_pci_1_4(QEMUMachineInitArgs *args)
322 static void pc_init_pci_1_3(QEMUMachineInitArgs *args)
328 /* PC machine init function for pc-0.14 to pc-1.2 */
329 static void pc_init_pci_1_2(QEMUMachineInitArgs *args)
335 /* PC init function for pc-0.10 to pc-0.13, and reused by xenfv */
336 static void pc_init_pci_no_kvmclock(QEMUMachineInitArgs *args)
338 has_pci_info = false;
339 has_acpi_build = false;
340 smbios_type1_defaults = false;
341 disable_kvm_pv_eoi();
342 enable_compat_apic_id_mode();
343 pc_init1(args, 1, 0);
346 static void pc_init_isa(QEMUMachineInitArgs *args)
348 has_pci_info = false;
349 has_acpi_build = false;
350 smbios_type1_defaults = false;
351 if (!args->cpu_model) {
352 args->cpu_model = "486";
354 disable_kvm_pv_eoi();
355 enable_compat_apic_id_mode();
356 pc_init1(args, 0, 1);
360 static void pc_xen_hvm_init(QEMUMachineInitArgs *args)
366 bus = pci_find_primary_bus();
368 pci_create_simple(bus, -1, "xen-platform");
373 #define PC_I440FX_MACHINE_OPTIONS \
374 PC_DEFAULT_MACHINE_OPTIONS, \
375 .desc = "Standard PC (i440FX + PIIX, 1996)", \
376 .hot_add_cpu = pc_hot_add_cpu
378 #define PC_I440FX_2_0_MACHINE_OPTIONS \
379 PC_I440FX_MACHINE_OPTIONS, \
380 .default_machine_opts = "firmware=bios-256k.bin"
382 static QEMUMachine pc_i440fx_machine_v2_0 = {
383 PC_I440FX_2_0_MACHINE_OPTIONS,
384 .name = "pc-i440fx-2.0",
390 #define PC_I440FX_1_7_MACHINE_OPTIONS PC_I440FX_MACHINE_OPTIONS
392 static QEMUMachine pc_i440fx_machine_v1_7 = {
393 PC_I440FX_1_7_MACHINE_OPTIONS,
394 .name = "pc-i440fx-1.7",
395 .init = pc_init_pci_1_7,
396 .compat_props = (GlobalProperty[]) {
398 { /* end of list */ }
402 #define PC_I440FX_1_6_MACHINE_OPTIONS PC_I440FX_MACHINE_OPTIONS
404 static QEMUMachine pc_i440fx_machine_v1_6 = {
405 PC_I440FX_1_6_MACHINE_OPTIONS,
406 .name = "pc-i440fx-1.6",
407 .init = pc_init_pci_1_6,
408 .compat_props = (GlobalProperty[]) {
410 { /* end of list */ }
414 static QEMUMachine pc_i440fx_machine_v1_5 = {
415 PC_I440FX_1_6_MACHINE_OPTIONS,
416 .name = "pc-i440fx-1.5",
417 .init = pc_init_pci_1_5,
418 .compat_props = (GlobalProperty[]) {
420 { /* end of list */ }
424 #define PC_I440FX_1_4_MACHINE_OPTIONS \
425 PC_I440FX_1_6_MACHINE_OPTIONS, \
428 static QEMUMachine pc_i440fx_machine_v1_4 = {
429 PC_I440FX_1_4_MACHINE_OPTIONS,
430 .name = "pc-i440fx-1.4",
431 .init = pc_init_pci_1_4,
432 .compat_props = (GlobalProperty[]) {
434 { /* end of list */ }
438 #define PC_COMPAT_1_3 \
441 .driver = "usb-tablet",\
442 .property = "usb_version",\
443 .value = stringify(1),\
445 .driver = "virtio-net-pci",\
446 .property = "ctrl_mac_addr",\
449 .driver = "virtio-net-pci", \
454 .property = "autonegotiation",\
458 static QEMUMachine pc_machine_v1_3 = {
459 PC_I440FX_1_4_MACHINE_OPTIONS,
461 .init = pc_init_pci_1_3,
462 .compat_props = (GlobalProperty[]) {
464 { /* end of list */ }
468 #define PC_COMPAT_1_2 \
471 .driver = "nec-usb-xhci",\
475 .driver = "nec-usb-xhci",\
479 .driver = "ivshmem",\
480 .property = "use64",\
484 .property = "revision",\
485 .value = stringify(3),\
487 .driver = "qxl-vga",\
488 .property = "revision",\
489 .value = stringify(3),\
496 #define PC_I440FX_1_2_MACHINE_OPTIONS \
497 PC_I440FX_1_4_MACHINE_OPTIONS, \
498 .init = pc_init_pci_1_2
500 static QEMUMachine pc_machine_v1_2 = {
501 PC_I440FX_1_2_MACHINE_OPTIONS,
503 .compat_props = (GlobalProperty[]) {
505 { /* end of list */ }
509 #define PC_COMPAT_1_1 \
512 .driver = "virtio-scsi-pci",\
513 .property = "hotplug",\
516 .driver = "virtio-scsi-pci",\
517 .property = "param_change",\
521 .property = "vgamem_mb",\
522 .value = stringify(8),\
524 .driver = "vmware-svga",\
525 .property = "vgamem_mb",\
526 .value = stringify(8),\
528 .driver = "qxl-vga",\
529 .property = "vgamem_mb",\
530 .value = stringify(8),\
533 .property = "vgamem_mb",\
534 .value = stringify(8),\
536 .driver = "virtio-blk-pci",\
537 .property = "config-wce",\
541 static QEMUMachine pc_machine_v1_1 = {
542 PC_I440FX_1_2_MACHINE_OPTIONS,
544 .compat_props = (GlobalProperty[]) {
546 { /* end of list */ }
550 #define PC_COMPAT_1_0 \
553 .driver = TYPE_ISA_FDC,\
554 .property = "check_media_rate",\
557 .driver = "virtio-balloon-pci",\
558 .property = "class",\
559 .value = stringify(PCI_CLASS_MEMORY_RAM),\
562 .property = "vapic",\
565 .driver = TYPE_USB_DEVICE,\
566 .property = "full-path",\
570 static QEMUMachine pc_machine_v1_0 = {
571 PC_I440FX_1_2_MACHINE_OPTIONS,
573 .compat_props = (GlobalProperty[]) {
575 { /* end of list */ }
580 #define PC_COMPAT_0_15 \
583 static QEMUMachine pc_machine_v0_15 = {
584 PC_I440FX_1_2_MACHINE_OPTIONS,
586 .compat_props = (GlobalProperty[]) {
588 { /* end of list */ }
590 .hw_version = "0.15",
593 #define PC_COMPAT_0_14 \
596 .driver = "virtio-blk-pci",\
597 .property = "event_idx",\
600 .driver = "virtio-serial-pci",\
601 .property = "event_idx",\
604 .driver = "virtio-net-pci",\
605 .property = "event_idx",\
608 .driver = "virtio-balloon-pci",\
609 .property = "event_idx",\
613 static QEMUMachine pc_machine_v0_14 = {
614 PC_I440FX_1_2_MACHINE_OPTIONS,
616 .compat_props = (GlobalProperty[]) {
620 .property = "revision",
621 .value = stringify(2),
624 .property = "revision",
625 .value = stringify(2),
627 { /* end of list */ }
629 .hw_version = "0.14",
632 #define PC_COMPAT_0_13 \
635 .driver = TYPE_PCI_DEVICE,\
636 .property = "command_serr_enable",\
640 .property = "use_broken_id",\
641 .value = stringify(1),\
644 #define PC_I440FX_0_13_MACHINE_OPTIONS \
645 PC_I440FX_1_2_MACHINE_OPTIONS, \
646 .init = pc_init_pci_no_kvmclock
648 static QEMUMachine pc_machine_v0_13 = {
649 PC_I440FX_0_13_MACHINE_OPTIONS,
651 .compat_props = (GlobalProperty[]) {
654 .driver = "virtio-9p-pci",
655 .property = "vectors",
656 .value = stringify(0),
659 .property = "rombar",
660 .value = stringify(0),
662 .driver = "vmware-svga",
663 .property = "rombar",
664 .value = stringify(0),
666 { /* end of list */ }
668 .hw_version = "0.13",
671 #define PC_COMPAT_0_12 \
674 .driver = "virtio-serial-pci",\
675 .property = "max_ports",\
676 .value = stringify(1),\
678 .driver = "virtio-serial-pci",\
679 .property = "vectors",\
680 .value = stringify(0),\
682 .driver = "usb-mouse",\
683 .property = "serial",\
686 .driver = "usb-tablet",\
687 .property = "serial",\
690 .driver = "usb-kbd",\
691 .property = "serial",\
695 static QEMUMachine pc_machine_v0_12 = {
696 PC_I440FX_0_13_MACHINE_OPTIONS,
698 .compat_props = (GlobalProperty[]) {
702 .property = "rombar",
703 .value = stringify(0),
705 .driver = "vmware-svga",
706 .property = "rombar",
707 .value = stringify(0),
709 { /* end of list */ }
711 .hw_version = "0.12",
714 #define PC_COMPAT_0_11 \
717 .driver = "virtio-blk-pci",\
718 .property = "vectors",\
719 .value = stringify(0),\
721 .driver = TYPE_PCI_DEVICE,\
722 .property = "rombar",\
723 .value = stringify(0),\
726 static QEMUMachine pc_machine_v0_11 = {
727 PC_I440FX_0_13_MACHINE_OPTIONS,
729 .compat_props = (GlobalProperty[]) {
732 .driver = "ide-drive",
736 .driver = "scsi-disk",
740 { /* end of list */ }
742 .hw_version = "0.11",
745 static QEMUMachine pc_machine_v0_10 = {
746 PC_I440FX_0_13_MACHINE_OPTIONS,
748 .compat_props = (GlobalProperty[]) {
751 .driver = "virtio-blk-pci",
753 .value = stringify(PCI_CLASS_STORAGE_OTHER),
755 .driver = "virtio-serial-pci",
757 .value = stringify(PCI_CLASS_DISPLAY_OTHER),
759 .driver = "virtio-net-pci",
760 .property = "vectors",
761 .value = stringify(0),
763 .driver = "ide-drive",
767 .driver = "scsi-disk",
771 { /* end of list */ }
773 .hw_version = "0.10",
776 static QEMUMachine isapc_machine = {
777 PC_COMMON_MACHINE_OPTIONS,
779 .desc = "ISA-only PC",
782 .compat_props = (GlobalProperty[]) {
783 { /* end of list */ }
788 static QEMUMachine xenfv_machine = {
789 PC_COMMON_MACHINE_OPTIONS,
791 .desc = "Xen Fully-virtualized PC",
792 .init = pc_xen_hvm_init,
793 .max_cpus = HVM_MAX_VCPUS,
794 .default_machine_opts = "accel=xen",
795 .hot_add_cpu = pc_hot_add_cpu,
799 static void pc_machine_init(void)
801 qemu_register_machine(&pc_i440fx_machine_v2_0);
802 qemu_register_machine(&pc_i440fx_machine_v1_7);
803 qemu_register_machine(&pc_i440fx_machine_v1_6);
804 qemu_register_machine(&pc_i440fx_machine_v1_5);
805 qemu_register_machine(&pc_i440fx_machine_v1_4);
806 qemu_register_machine(&pc_machine_v1_3);
807 qemu_register_machine(&pc_machine_v1_2);
808 qemu_register_machine(&pc_machine_v1_1);
809 qemu_register_machine(&pc_machine_v1_0);
810 qemu_register_machine(&pc_machine_v0_15);
811 qemu_register_machine(&pc_machine_v0_14);
812 qemu_register_machine(&pc_machine_v0_13);
813 qemu_register_machine(&pc_machine_v0_12);
814 qemu_register_machine(&pc_machine_v0_11);
815 qemu_register_machine(&pc_machine_v0_10);
816 qemu_register_machine(&isapc_machine);
818 qemu_register_machine(&xenfv_machine);
822 machine_init(pc_machine_init);