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 char busname
[] = "ide.0";
225 dev
= isa_ide_init(isa_bus
, ide_iobase
[i
], ide_iobase2
[i
],
227 hd
[MAX_IDE_DEVS
* i
], hd
[MAX_IDE_DEVS
* i
+ 1]);
229 * The ide bus name is ide.0 for the first bus and ide.1 for the
232 busname
[4] = '0' + i
;
233 idebus
[i
] = qdev_get_child_bus(DEVICE(dev
), busname
);
237 pc_cmos_init(below_4g_mem_size
, above_4g_mem_size
, args
->boot_order
,
238 floppy
, idebus
[0], idebus
[1], rtc_state
);
240 if (pci_enabled
&& usb_enabled(false)) {
241 pci_create_simple(pci_bus
, piix3_devfn
+ 2, "piix3-usb-uhci");
244 if (pci_enabled
&& acpi_enabled
) {
247 smi_irq
= qemu_allocate_irqs(pc_acpi_smi_interrupt
, first_cpu
, 1);
248 /* TODO: Populate SPD eeprom data. */
249 smbus
= piix4_pm_init(pci_bus
, piix3_devfn
+ 3, 0xb100,
251 kvm_enabled(), fw_cfg
);
252 smbus_eeprom_init(smbus
, 8, NULL
, 0);
256 pc_pci_device_init(pci_bus
);
260 static void pc_init_pci(QEMUMachineInitArgs
*args
)
262 pc_init1(args
, 1, 1);
265 static void pc_compat_1_7(QEMUMachineInitArgs
*args
)
267 smbios_type1_defaults
= false;
268 gigabyte_align
= false;
269 option_rom_has_mr
= true;
270 x86_cpu_compat_disable_kvm_features(FEAT_1_ECX
, CPUID_EXT_X2APIC
);
273 static void pc_compat_1_6(QEMUMachineInitArgs
*args
)
276 has_pci_info
= false;
277 rom_file_has_mr
= false;
278 has_acpi_build
= false;
281 static void pc_compat_1_5(QEMUMachineInitArgs
*args
)
286 static void pc_compat_1_4(QEMUMachineInitArgs
*args
)
289 x86_cpu_compat_set_features("n270", FEAT_1_ECX
, 0, CPUID_EXT_MOVBE
);
290 x86_cpu_compat_set_features("Westmere", FEAT_1_ECX
, 0, CPUID_EXT_PCLMULQDQ
);
293 static void pc_compat_1_3(QEMUMachineInitArgs
*args
)
296 enable_compat_apic_id_mode();
299 /* PC compat function for pc-0.14 to pc-1.2 */
300 static void pc_compat_1_2(QEMUMachineInitArgs
*args
)
303 x86_cpu_compat_disable_kvm_features(FEAT_KVM
, KVM_FEATURE_PV_EOI
);
306 static void pc_init_pci_1_7(QEMUMachineInitArgs
*args
)
312 static void pc_init_pci_1_6(QEMUMachineInitArgs
*args
)
318 static void pc_init_pci_1_5(QEMUMachineInitArgs
*args
)
324 static void pc_init_pci_1_4(QEMUMachineInitArgs
*args
)
330 static void pc_init_pci_1_3(QEMUMachineInitArgs
*args
)
336 /* PC machine init function for pc-0.14 to pc-1.2 */
337 static void pc_init_pci_1_2(QEMUMachineInitArgs
*args
)
343 /* PC init function for pc-0.10 to pc-0.13, and reused by xenfv */
344 static void pc_init_pci_no_kvmclock(QEMUMachineInitArgs
*args
)
346 has_pci_info
= false;
347 has_acpi_build
= false;
348 smbios_type1_defaults
= false;
349 x86_cpu_compat_disable_kvm_features(FEAT_KVM
, KVM_FEATURE_PV_EOI
);
350 enable_compat_apic_id_mode();
351 pc_init1(args
, 1, 0);
354 static void pc_init_isa(QEMUMachineInitArgs
*args
)
356 has_pci_info
= false;
357 has_acpi_build
= false;
358 smbios_type1_defaults
= false;
359 if (!args
->cpu_model
) {
360 args
->cpu_model
= "486";
362 x86_cpu_compat_disable_kvm_features(FEAT_KVM
, KVM_FEATURE_PV_EOI
);
363 enable_compat_apic_id_mode();
364 pc_init1(args
, 0, 1);
368 static void pc_xen_hvm_init(QEMUMachineInitArgs
*args
)
374 bus
= pci_find_primary_bus();
376 pci_create_simple(bus
, -1, "xen-platform");
381 #define PC_I440FX_MACHINE_OPTIONS \
382 PC_DEFAULT_MACHINE_OPTIONS, \
383 .desc = "Standard PC (i440FX + PIIX, 1996)", \
384 .hot_add_cpu = pc_hot_add_cpu
386 #define PC_I440FX_2_0_MACHINE_OPTIONS \
387 PC_I440FX_MACHINE_OPTIONS, \
388 .default_machine_opts = "firmware=bios-256k.bin"
390 static QEMUMachine pc_i440fx_machine_v2_0
= {
391 PC_I440FX_2_0_MACHINE_OPTIONS
,
392 .name
= "pc-i440fx-2.0",
398 #define PC_I440FX_1_7_MACHINE_OPTIONS PC_I440FX_MACHINE_OPTIONS
400 static QEMUMachine pc_i440fx_machine_v1_7
= {
401 PC_I440FX_1_7_MACHINE_OPTIONS
,
402 .name
= "pc-i440fx-1.7",
403 .init
= pc_init_pci_1_7
,
404 .compat_props
= (GlobalProperty
[]) {
406 { /* end of list */ }
410 #define PC_I440FX_1_6_MACHINE_OPTIONS PC_I440FX_MACHINE_OPTIONS
412 static QEMUMachine pc_i440fx_machine_v1_6
= {
413 PC_I440FX_1_6_MACHINE_OPTIONS
,
414 .name
= "pc-i440fx-1.6",
415 .init
= pc_init_pci_1_6
,
416 .compat_props
= (GlobalProperty
[]) {
418 { /* end of list */ }
422 static QEMUMachine pc_i440fx_machine_v1_5
= {
423 PC_I440FX_1_6_MACHINE_OPTIONS
,
424 .name
= "pc-i440fx-1.5",
425 .init
= pc_init_pci_1_5
,
426 .compat_props
= (GlobalProperty
[]) {
428 { /* end of list */ }
432 #define PC_I440FX_1_4_MACHINE_OPTIONS \
433 PC_I440FX_1_6_MACHINE_OPTIONS, \
436 static QEMUMachine pc_i440fx_machine_v1_4
= {
437 PC_I440FX_1_4_MACHINE_OPTIONS
,
438 .name
= "pc-i440fx-1.4",
439 .init
= pc_init_pci_1_4
,
440 .compat_props
= (GlobalProperty
[]) {
442 { /* end of list */ }
446 #define PC_COMPAT_1_3 \
449 .driver = "usb-tablet",\
450 .property = "usb_version",\
451 .value = stringify(1),\
453 .driver = "virtio-net-pci",\
454 .property = "ctrl_mac_addr",\
457 .driver = "virtio-net-pci", \
462 .property = "autonegotiation",\
466 static QEMUMachine pc_machine_v1_3
= {
467 PC_I440FX_1_4_MACHINE_OPTIONS
,
469 .init
= pc_init_pci_1_3
,
470 .compat_props
= (GlobalProperty
[]) {
472 { /* end of list */ }
476 #define PC_COMPAT_1_2 \
479 .driver = "nec-usb-xhci",\
483 .driver = "nec-usb-xhci",\
487 .driver = "ivshmem",\
488 .property = "use64",\
492 .property = "revision",\
493 .value = stringify(3),\
495 .driver = "qxl-vga",\
496 .property = "revision",\
497 .value = stringify(3),\
504 #define PC_I440FX_1_2_MACHINE_OPTIONS \
505 PC_I440FX_1_4_MACHINE_OPTIONS, \
506 .init = pc_init_pci_1_2
508 static QEMUMachine pc_machine_v1_2
= {
509 PC_I440FX_1_2_MACHINE_OPTIONS
,
511 .compat_props
= (GlobalProperty
[]) {
513 { /* end of list */ }
517 #define PC_COMPAT_1_1 \
520 .driver = "virtio-scsi-pci",\
521 .property = "hotplug",\
524 .driver = "virtio-scsi-pci",\
525 .property = "param_change",\
529 .property = "vgamem_mb",\
530 .value = stringify(8),\
532 .driver = "vmware-svga",\
533 .property = "vgamem_mb",\
534 .value = stringify(8),\
536 .driver = "qxl-vga",\
537 .property = "vgamem_mb",\
538 .value = stringify(8),\
541 .property = "vgamem_mb",\
542 .value = stringify(8),\
544 .driver = "virtio-blk-pci",\
545 .property = "config-wce",\
549 static QEMUMachine pc_machine_v1_1
= {
550 PC_I440FX_1_2_MACHINE_OPTIONS
,
552 .compat_props
= (GlobalProperty
[]) {
554 { /* end of list */ }
558 #define PC_COMPAT_1_0 \
561 .driver = TYPE_ISA_FDC,\
562 .property = "check_media_rate",\
565 .driver = "virtio-balloon-pci",\
566 .property = "class",\
567 .value = stringify(PCI_CLASS_MEMORY_RAM),\
570 .property = "vapic",\
573 .driver = TYPE_USB_DEVICE,\
574 .property = "full-path",\
578 static QEMUMachine pc_machine_v1_0
= {
579 PC_I440FX_1_2_MACHINE_OPTIONS
,
581 .compat_props
= (GlobalProperty
[]) {
583 { /* end of list */ }
588 #define PC_COMPAT_0_15 \
591 static QEMUMachine pc_machine_v0_15
= {
592 PC_I440FX_1_2_MACHINE_OPTIONS
,
594 .compat_props
= (GlobalProperty
[]) {
596 { /* end of list */ }
598 .hw_version
= "0.15",
601 #define PC_COMPAT_0_14 \
604 .driver = "virtio-blk-pci",\
605 .property = "event_idx",\
608 .driver = "virtio-serial-pci",\
609 .property = "event_idx",\
612 .driver = "virtio-net-pci",\
613 .property = "event_idx",\
616 .driver = "virtio-balloon-pci",\
617 .property = "event_idx",\
621 static QEMUMachine pc_machine_v0_14
= {
622 PC_I440FX_1_2_MACHINE_OPTIONS
,
624 .compat_props
= (GlobalProperty
[]) {
628 .property
= "revision",
629 .value
= stringify(2),
632 .property
= "revision",
633 .value
= stringify(2),
635 { /* end of list */ }
637 .hw_version
= "0.14",
640 #define PC_COMPAT_0_13 \
643 .driver = TYPE_PCI_DEVICE,\
644 .property = "command_serr_enable",\
648 .property = "use_broken_id",\
649 .value = stringify(1),\
652 #define PC_I440FX_0_13_MACHINE_OPTIONS \
653 PC_I440FX_1_2_MACHINE_OPTIONS, \
654 .init = pc_init_pci_no_kvmclock
656 static QEMUMachine pc_machine_v0_13
= {
657 PC_I440FX_0_13_MACHINE_OPTIONS
,
659 .compat_props
= (GlobalProperty
[]) {
662 .driver
= "virtio-9p-pci",
663 .property
= "vectors",
664 .value
= stringify(0),
667 .property
= "rombar",
668 .value
= stringify(0),
670 .driver
= "vmware-svga",
671 .property
= "rombar",
672 .value
= stringify(0),
674 { /* end of list */ }
676 .hw_version
= "0.13",
679 #define PC_COMPAT_0_12 \
682 .driver = "virtio-serial-pci",\
683 .property = "max_ports",\
684 .value = stringify(1),\
686 .driver = "virtio-serial-pci",\
687 .property = "vectors",\
688 .value = stringify(0),\
690 .driver = "usb-mouse",\
691 .property = "serial",\
694 .driver = "usb-tablet",\
695 .property = "serial",\
698 .driver = "usb-kbd",\
699 .property = "serial",\
703 static QEMUMachine pc_machine_v0_12
= {
704 PC_I440FX_0_13_MACHINE_OPTIONS
,
706 .compat_props
= (GlobalProperty
[]) {
710 .property
= "rombar",
711 .value
= stringify(0),
713 .driver
= "vmware-svga",
714 .property
= "rombar",
715 .value
= stringify(0),
717 { /* end of list */ }
719 .hw_version
= "0.12",
722 #define PC_COMPAT_0_11 \
725 .driver = "virtio-blk-pci",\
726 .property = "vectors",\
727 .value = stringify(0),\
729 .driver = TYPE_PCI_DEVICE,\
730 .property = "rombar",\
731 .value = stringify(0),\
734 static QEMUMachine pc_machine_v0_11
= {
735 PC_I440FX_0_13_MACHINE_OPTIONS
,
737 .compat_props
= (GlobalProperty
[]) {
740 .driver
= "ide-drive",
744 .driver
= "scsi-disk",
748 { /* end of list */ }
750 .hw_version
= "0.11",
753 static QEMUMachine pc_machine_v0_10
= {
754 PC_I440FX_0_13_MACHINE_OPTIONS
,
756 .compat_props
= (GlobalProperty
[]) {
759 .driver
= "virtio-blk-pci",
761 .value
= stringify(PCI_CLASS_STORAGE_OTHER
),
763 .driver
= "virtio-serial-pci",
765 .value
= stringify(PCI_CLASS_DISPLAY_OTHER
),
767 .driver
= "virtio-net-pci",
768 .property
= "vectors",
769 .value
= stringify(0),
771 .driver
= "ide-drive",
775 .driver
= "scsi-disk",
779 { /* end of list */ }
781 .hw_version
= "0.10",
784 static QEMUMachine isapc_machine
= {
785 PC_COMMON_MACHINE_OPTIONS
,
787 .desc
= "ISA-only PC",
790 .compat_props
= (GlobalProperty
[]) {
791 { /* end of list */ }
796 static QEMUMachine xenfv_machine
= {
797 PC_COMMON_MACHINE_OPTIONS
,
799 .desc
= "Xen Fully-virtualized PC",
800 .init
= pc_xen_hvm_init
,
801 .max_cpus
= HVM_MAX_VCPUS
,
802 .default_machine_opts
= "accel=xen",
803 .hot_add_cpu
= pc_hot_add_cpu
,
804 .compat_props
= (GlobalProperty
[]) {
805 /* xenfv has no fwcfg and so does not load acpi from QEMU.
806 * as such new acpi features don't work.
809 .driver
= "PIIX4_PM",
810 .property
= "acpi-pci-hotplug-with-bridge-support",
813 { /* end of list */ }
818 static void pc_machine_init(void)
820 qemu_register_machine(&pc_i440fx_machine_v2_0
);
821 qemu_register_machine(&pc_i440fx_machine_v1_7
);
822 qemu_register_machine(&pc_i440fx_machine_v1_6
);
823 qemu_register_machine(&pc_i440fx_machine_v1_5
);
824 qemu_register_machine(&pc_i440fx_machine_v1_4
);
825 qemu_register_machine(&pc_machine_v1_3
);
826 qemu_register_machine(&pc_machine_v1_2
);
827 qemu_register_machine(&pc_machine_v1_1
);
828 qemu_register_machine(&pc_machine_v1_0
);
829 qemu_register_machine(&pc_machine_v0_15
);
830 qemu_register_machine(&pc_machine_v0_14
);
831 qemu_register_machine(&pc_machine_v0_13
);
832 qemu_register_machine(&pc_machine_v0_12
);
833 qemu_register_machine(&pc_machine_v0_11
);
834 qemu_register_machine(&pc_machine_v0_10
);
835 qemu_register_machine(&isapc_machine
);
837 qemu_register_machine(&xenfv_machine
);
841 machine_init(pc_machine_init
);