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
24 #include "qemu/osdep.h"
26 #include "hw/i386/pc.h"
27 #include "hw/char/serial.h"
28 #include "hw/i386/apic.h"
29 #include "hw/i386/topology.h"
30 #include "sysemu/cpus.h"
31 #include "hw/block/fdc.h"
33 #include "hw/pci/pci.h"
34 #include "hw/pci/pci_bus.h"
35 #include "hw/nvram/fw_cfg.h"
36 #include "hw/timer/hpet.h"
37 #include "hw/smbios/smbios.h"
38 #include "hw/loader.h"
40 #include "multiboot.h"
41 #include "hw/timer/mc146818rtc.h"
42 #include "hw/timer/i8254.h"
43 #include "hw/audio/pcspk.h"
44 #include "hw/pci/msi.h"
45 #include "hw/sysbus.h"
46 #include "sysemu/sysemu.h"
47 #include "sysemu/numa.h"
48 #include "sysemu/kvm.h"
49 #include "sysemu/qtest.h"
51 #include "hw/xen/xen.h"
52 #include "sysemu/block-backend.h"
53 #include "hw/block/block.h"
54 #include "ui/qemu-spice.h"
55 #include "exec/memory.h"
56 #include "exec/address-spaces.h"
57 #include "sysemu/arch_init.h"
58 #include "qemu/bitmap.h"
59 #include "qemu/config-file.h"
60 #include "qemu/error-report.h"
61 #include "hw/acpi/acpi.h"
62 #include "hw/acpi/cpu_hotplug.h"
63 #include "hw/boards.h"
64 #include "hw/pci/pci_host.h"
65 #include "acpi-build.h"
66 #include "hw/mem/pc-dimm.h"
67 #include "qapi/visitor.h"
68 #include "qapi-visit.h"
71 #include "hw/i386/intel_iommu.h"
72 #include "hw/net/ne2000-isa.h"
74 /* debug PC/ISA interrupts */
78 #define DPRINTF(fmt, ...) \
79 do { printf("CPUIRQ: " fmt , ## __VA_ARGS__); } while (0)
81 #define DPRINTF(fmt, ...)
84 #define FW_CFG_ACPI_TABLES (FW_CFG_ARCH_LOCAL + 0)
85 #define FW_CFG_SMBIOS_ENTRIES (FW_CFG_ARCH_LOCAL + 1)
86 #define FW_CFG_IRQ0_OVERRIDE (FW_CFG_ARCH_LOCAL + 2)
87 #define FW_CFG_E820_TABLE (FW_CFG_ARCH_LOCAL + 3)
88 #define FW_CFG_HPET (FW_CFG_ARCH_LOCAL + 4)
90 #define E820_NR_ENTRIES 16
96 } QEMU_PACKED __attribute((__aligned__(4)));
100 struct e820_entry entry[E820_NR_ENTRIES];
101 } QEMU_PACKED __attribute((__aligned__(4)));
103 static struct e820_table e820_reserve;
104 static struct e820_entry *e820_table;
105 static unsigned e820_entries;
106 struct hpet_fw_config hpet_cfg = {.count = UINT8_MAX};
108 void gsi_handler(void *opaque, int n, int level)
110 GSIState *s = opaque;
112 DPRINTF("pc: %s GSI %d\n", level ? "raising" : "lowering", n);
113 if (n < ISA_NUM_IRQS) {
114 qemu_set_irq(s->i8259_irq[n], level);
116 qemu_set_irq(s->ioapic_irq[n], level);
119 static void ioport80_write(void *opaque, hwaddr addr, uint64_t data,
124 static uint64_t ioport80_read(void *opaque, hwaddr addr, unsigned size)
126 return 0xffffffffffffffffULL;
129 /* MSDOS compatibility mode FPU exception support */
130 static qemu_irq ferr_irq;
132 void pc_register_ferr_irq(qemu_irq irq)
137 /* XXX: add IGNNE support */
138 void cpu_set_ferr(CPUX86State *s)
140 qemu_irq_raise(ferr_irq);
143 static void ioportF0_write(void *opaque, hwaddr addr, uint64_t data,
146 qemu_irq_lower(ferr_irq);
149 static uint64_t ioportF0_read(void *opaque, hwaddr addr, unsigned size)
151 return 0xffffffffffffffffULL;
155 uint64_t cpu_get_tsc(CPUX86State *env)
157 return cpu_get_ticks();
161 int cpu_get_pic_interrupt(CPUX86State *env)
163 X86CPU *cpu = x86_env_get_cpu(env);
166 if (!kvm_irqchip_in_kernel()) {
167 intno = apic_get_interrupt(cpu->apic_state);
171 /* read the irq from the PIC */
172 if (!apic_accept_pic_intr(cpu->apic_state)) {
177 intno = pic_read_irq(isa_pic);
181 static void pic_irq_request(void *opaque, int irq, int level)
183 CPUState *cs = first_cpu;
184 X86CPU *cpu = X86_CPU(cs);
186 DPRINTF("pic_irqs: %s irq %d\n", level? "raise" : "lower", irq);
187 if (cpu->apic_state && !kvm_irqchip_in_kernel()) {
190 if (apic_accept_pic_intr(cpu->apic_state)) {
191 apic_deliver_pic_intr(cpu->apic_state, level);
196 cpu_interrupt(cs, CPU_INTERRUPT_HARD);
198 cpu_reset_interrupt(cs, CPU_INTERRUPT_HARD);
203 /* PC cmos mappings */
205 #define REG_EQUIPMENT_BYTE 0x14
207 int cmos_get_fd_drive_type(FloppyDriveType fd0)
212 case FLOPPY_DRIVE_TYPE_144:
213 /* 1.44 Mb 3"5 drive */
216 case FLOPPY_DRIVE_TYPE_288:
217 /* 2.88 Mb 3"5 drive */
220 case FLOPPY_DRIVE_TYPE_120:
221 /* 1.2 Mb 5"5 drive */
224 case FLOPPY_DRIVE_TYPE_NONE:
232 static void cmos_init_hd(ISADevice *s, int type_ofs, int info_ofs,
233 int16_t cylinders, int8_t heads, int8_t sectors)
235 rtc_set_memory(s, type_ofs, 47);
236 rtc_set_memory(s, info_ofs, cylinders);
237 rtc_set_memory(s, info_ofs + 1, cylinders >> 8);
238 rtc_set_memory(s, info_ofs + 2, heads);
239 rtc_set_memory(s, info_ofs + 3, 0xff);
240 rtc_set_memory(s, info_ofs + 4, 0xff);
241 rtc_set_memory(s, info_ofs + 5, 0xc0 | ((heads > 8) << 3));
242 rtc_set_memory(s, info_ofs + 6, cylinders);
243 rtc_set_memory(s, info_ofs + 7, cylinders >> 8);
244 rtc_set_memory(s, info_ofs + 8, sectors);
247 /* convert boot_device letter to something recognizable by the bios */
248 static int boot_device2nibble(char boot_device)
250 switch(boot_device) {
253 return 0x01; /* floppy boot */
255 return 0x02; /* hard drive boot */
257 return 0x03; /* CD-ROM boot */
259 return 0x04; /* Network boot */
264 static void set_boot_dev(ISADevice *s, const char *boot_device, Error **errp)
266 #define PC_MAX_BOOT_DEVICES 3
267 int nbds, bds[3] = { 0, };
270 nbds = strlen(boot_device);
271 if (nbds > PC_MAX_BOOT_DEVICES) {
272 error_setg(errp, "Too many boot devices for PC");
275 for (i = 0; i < nbds; i++) {
276 bds[i] = boot_device2nibble(boot_device[i]);
278 error_setg(errp, "Invalid boot device for PC: '%c'",
283 rtc_set_memory(s, 0x3d, (bds[1] << 4) | bds[0]);
284 rtc_set_memory(s, 0x38, (bds[2] << 4) | (fd_bootchk ? 0x0 : 0x1));
287 static void pc_boot_set(void *opaque, const char *boot_device, Error **errp)
289 set_boot_dev(opaque, boot_device, errp);
292 static void pc_cmos_init_floppy(ISADevice *rtc_state, ISADevice *floppy)
295 FloppyDriveType fd_type[2] = { FLOPPY_DRIVE_TYPE_NONE,
296 FLOPPY_DRIVE_TYPE_NONE };
300 for (i = 0; i < 2; i++) {
301 fd_type[i] = isa_fdc_get_drive_type(floppy, i);
304 val = (cmos_get_fd_drive_type(fd_type[0]) << 4) |
305 cmos_get_fd_drive_type(fd_type[1]);
306 rtc_set_memory(rtc_state, 0x10, val);
308 val = rtc_get_memory(rtc_state, REG_EQUIPMENT_BYTE);
310 if (fd_type[0] != FLOPPY_DRIVE_TYPE_NONE) {
313 if (fd_type[1] != FLOPPY_DRIVE_TYPE_NONE) {
320 val |= 0x01; /* 1 drive, ready for boot */
323 val |= 0x41; /* 2 drives, ready for boot */
326 rtc_set_memory(rtc_state, REG_EQUIPMENT_BYTE, val);
329 typedef struct pc_cmos_init_late_arg {
330 ISADevice *rtc_state;
332 } pc_cmos_init_late_arg;
334 typedef struct check_fdc_state {
339 static int check_fdc(Object *obj, void *opaque)
341 CheckFdcState *state = opaque;
344 Error *local_err = NULL;
346 fdc = object_dynamic_cast(obj, TYPE_ISA_FDC);
351 iobase = object_property_get_uint(obj, "iobase", &local_err);
352 if (local_err || iobase != 0x3f0) {
353 error_free(local_err);
358 state->multiple = true;
360 state->floppy = ISA_DEVICE(obj);
365 static const char * const fdc_container_path[] = {
366 "/unattached", "/peripheral", "/peripheral-anon"
370 * Locate the FDC at IO address 0x3f0, in order to configure the CMOS registers
373 ISADevice *pc_find_fdc0(void)
377 CheckFdcState state = { 0 };
379 for (i = 0; i < ARRAY_SIZE(fdc_container_path); i++) {
380 container = container_get(qdev_get_machine(), fdc_container_path[i]);
381 object_child_foreach(container, check_fdc, &state);
384 if (state.multiple) {
385 warn_report("multiple floppy disk controllers with "
386 "iobase=0x3f0 have been found");
387 error_printf("the one being picked for CMOS setup might not reflect "
394 static void pc_cmos_init_late(void *opaque)
396 pc_cmos_init_late_arg *arg = opaque;
397 ISADevice *s = arg->rtc_state;
399 int8_t heads, sectors;
404 if (arg->idebus[0] && ide_get_geometry(arg->idebus[0], 0,
405 &cylinders, &heads, §ors) >= 0) {
406 cmos_init_hd(s, 0x19, 0x1b, cylinders, heads, sectors);
409 if (arg->idebus[0] && ide_get_geometry(arg->idebus[0], 1,
410 &cylinders, &heads, §ors) >= 0) {
411 cmos_init_hd(s, 0x1a, 0x24, cylinders, heads, sectors);
414 rtc_set_memory(s, 0x12, val);
417 for (i = 0; i < 4; i++) {
418 /* NOTE: ide_get_geometry() returns the physical
419 geometry. It is always such that: 1 <= sects <= 63, 1
420 <= heads <= 16, 1 <= cylinders <= 16383. The BIOS
421 geometry can be different if a translation is done. */
422 if (arg->idebus[i / 2] &&
423 ide_get_geometry(arg->idebus[i / 2], i % 2,
424 &cylinders, &heads, §ors) >= 0) {
425 trans = ide_get_bios_chs_trans(arg->idebus[i / 2], i % 2) - 1;
426 assert((trans & ~3) == 0);
427 val |= trans << (i * 2);
430 rtc_set_memory(s, 0x39, val);
432 pc_cmos_init_floppy(s, pc_find_fdc0());
434 qemu_unregister_reset(pc_cmos_init_late, opaque);
437 void pc_cmos_init(PCMachineState *pcms,
438 BusState *idebus0, BusState *idebus1,
442 static pc_cmos_init_late_arg arg;
444 /* various important CMOS locations needed by PC/Bochs bios */
447 /* base memory (first MiB) */
448 val = MIN(pcms->below_4g_mem_size / 1024, 640);
449 rtc_set_memory(s, 0x15, val);
450 rtc_set_memory(s, 0x16, val >> 8);
451 /* extended memory (next 64MiB) */
452 if (pcms->below_4g_mem_size > 1024 * 1024) {
453 val = (pcms->below_4g_mem_size - 1024 * 1024) / 1024;
459 rtc_set_memory(s, 0x17, val);
460 rtc_set_memory(s, 0x18, val >> 8);
461 rtc_set_memory(s, 0x30, val);
462 rtc_set_memory(s, 0x31, val >> 8);
463 /* memory between 16MiB and 4GiB */
464 if (pcms->below_4g_mem_size > 16 * 1024 * 1024) {
465 val = (pcms->below_4g_mem_size - 16 * 1024 * 1024) / 65536;
471 rtc_set_memory(s, 0x34, val);
472 rtc_set_memory(s, 0x35, val >> 8);
473 /* memory above 4GiB */
474 val = pcms->above_4g_mem_size / 65536;
475 rtc_set_memory(s, 0x5b, val);
476 rtc_set_memory(s, 0x5c, val >> 8);
477 rtc_set_memory(s, 0x5d, val >> 16);
479 object_property_add_link(OBJECT(pcms), "rtc_state",
481 (Object **)&pcms->rtc,
482 object_property_allow_set_link,
483 OBJ_PROP_LINK_UNREF_ON_RELEASE, &error_abort);
484 object_property_set_link(OBJECT(pcms), OBJECT(s),
485 "rtc_state", &error_abort);
487 set_boot_dev(s, MACHINE(pcms)->boot_order, &error_fatal);
490 val |= 0x02; /* FPU is there */
491 val |= 0x04; /* PS/2 mouse installed */
492 rtc_set_memory(s, REG_EQUIPMENT_BYTE, val);
494 /* hard drives and FDC */
496 arg.idebus[0] = idebus0;
497 arg.idebus[1] = idebus1;
498 qemu_register_reset(pc_cmos_init_late, &arg);
501 #define TYPE_PORT92 "port92"
502 #define PORT92(obj) OBJECT_CHECK(Port92State, (obj), TYPE_PORT92)
504 /* port 92 stuff: could be split off */
505 typedef struct Port92State {
506 ISADevice parent_obj;
513 static void port92_write(void *opaque, hwaddr addr, uint64_t val,
516 Port92State *s = opaque;
517 int oldval = s->outport;
519 DPRINTF("port92: write 0x%02" PRIx64 "\n", val);
521 qemu_set_irq(s->a20_out, (val >> 1) & 1);
522 if ((val & 1) && !(oldval & 1)) {
523 qemu_system_reset_request(SHUTDOWN_CAUSE_GUEST_RESET);
527 static uint64_t port92_read(void *opaque, hwaddr addr,
530 Port92State *s = opaque;
534 DPRINTF("port92: read 0x%02x\n", ret);
538 static void port92_init(ISADevice *dev, qemu_irq a20_out)
540 qdev_connect_gpio_out_named(DEVICE(dev), PORT92_A20_LINE, 0, a20_out);
543 static const VMStateDescription vmstate_port92_isa = {
546 .minimum_version_id = 1,
547 .fields = (VMStateField[]) {
548 VMSTATE_UINT8(outport, Port92State),
549 VMSTATE_END_OF_LIST()
553 static void port92_reset(DeviceState *d)
555 Port92State *s = PORT92(d);
560 static const MemoryRegionOps port92_ops = {
562 .write = port92_write,
564 .min_access_size = 1,
565 .max_access_size = 1,
567 .endianness = DEVICE_LITTLE_ENDIAN,
570 static void port92_initfn(Object *obj)
572 Port92State *s = PORT92(obj);
574 memory_region_init_io(&s->io, OBJECT(s), &port92_ops, s, "port92", 1);
578 qdev_init_gpio_out_named(DEVICE(obj), &s->a20_out, PORT92_A20_LINE, 1);
581 static void port92_realizefn(DeviceState *dev, Error **errp)
583 ISADevice *isadev = ISA_DEVICE(dev);
584 Port92State *s = PORT92(dev);
586 isa_register_ioport(isadev, &s->io, 0x92);
589 static void port92_class_initfn(ObjectClass *klass, void *data)
591 DeviceClass *dc = DEVICE_CLASS(klass);
593 dc->realize = port92_realizefn;
594 dc->reset = port92_reset;
595 dc->vmsd = &vmstate_port92_isa;
597 * Reason: unlike ordinary ISA devices, this one needs additional
598 * wiring: its A20 output line needs to be wired up by
601 dc->user_creatable = false;
604 static const TypeInfo port92_info = {
606 .parent = TYPE_ISA_DEVICE,
607 .instance_size = sizeof(Port92State),
608 .instance_init = port92_initfn,
609 .class_init = port92_class_initfn,
612 static void port92_register_types(void)
614 type_register_static(&port92_info);
617 type_init(port92_register_types)
619 static void handle_a20_line_change(void *opaque, int irq, int level)
621 X86CPU *cpu = opaque;
623 /* XXX: send to all CPUs ? */
624 /* XXX: add logic to handle multiple A20 line sources */
625 x86_cpu_set_a20(cpu, level);
628 int e820_add_entry(uint64_t address, uint64_t length, uint32_t type)
630 int index = le32_to_cpu(e820_reserve.count);
631 struct e820_entry *entry;
633 if (type != E820_RAM) {
634 /* old FW_CFG_E820_TABLE entry -- reservations only */
635 if (index >= E820_NR_ENTRIES) {
638 entry = &e820_reserve.entry[index++];
640 entry->address = cpu_to_le64(address);
641 entry->length = cpu_to_le64(length);
642 entry->type = cpu_to_le32(type);
644 e820_reserve.count = cpu_to_le32(index);
647 /* new "etc/e820" file -- include ram too */
648 e820_table = g_renew(struct e820_entry, e820_table, e820_entries + 1);
649 e820_table[e820_entries].address = cpu_to_le64(address);
650 e820_table[e820_entries].length = cpu_to_le64(length);
651 e820_table[e820_entries].type = cpu_to_le32(type);
657 int e820_get_num_entries(void)
662 bool e820_get_entry(int idx, uint32_t type, uint64_t *address, uint64_t *length)
664 if (idx < e820_entries && e820_table[idx].type == cpu_to_le32(type)) {
665 *address = le64_to_cpu(e820_table[idx].address);
666 *length = le64_to_cpu(e820_table[idx].length);
672 /* Enables contiguous-apic-ID mode, for compatibility */
673 static bool compat_apic_id_mode;
675 void enable_compat_apic_id_mode(void)
677 compat_apic_id_mode = true;
680 /* Calculates initial APIC ID for a specific CPU index
682 * Currently we need to be able to calculate the APIC ID from the CPU index
683 * alone (without requiring a CPU object), as the QEMU<->Seabios interfaces have
684 * no concept of "CPU index", and the NUMA tables on fw_cfg need the APIC ID of
685 * all CPUs up to max_cpus.
687 static uint32_t x86_cpu_apic_id_from_index(unsigned int cpu_index)
692 correct_id = x86_apicid_from_cpu_idx(smp_cores, smp_threads, cpu_index);
693 if (compat_apic_id_mode) {
694 if (cpu_index != correct_id && !warned && !qtest_enabled()) {
695 error_report("APIC IDs set in compatibility mode, "
696 "CPU topology won't match the configuration");
705 static void pc_build_smbios(PCMachineState *pcms)
707 uint8_t *smbios_tables, *smbios_anchor;
708 size_t smbios_tables_len, smbios_anchor_len;
709 struct smbios_phys_mem_area *mem_array;
710 unsigned i, array_count;
711 MachineState *ms = MACHINE(pcms);
712 X86CPU *cpu = X86_CPU(ms->possible_cpus->cpus[0].cpu);
714 /* tell smbios about cpuid version and features */
715 smbios_set_cpuid(cpu->env.cpuid_version, cpu->env.features[FEAT_1_EDX]);
717 smbios_tables = smbios_get_table_legacy(&smbios_tables_len);
719 fw_cfg_add_bytes(pcms->fw_cfg, FW_CFG_SMBIOS_ENTRIES,
720 smbios_tables, smbios_tables_len);
723 /* build the array of physical mem area from e820 table */
724 mem_array = g_malloc0(sizeof(*mem_array) * e820_get_num_entries());
725 for (i = 0, array_count = 0; i < e820_get_num_entries(); i++) {
728 if (e820_get_entry(i, E820_RAM, &addr, &len)) {
729 mem_array[array_count].address = addr;
730 mem_array[array_count].length = len;
734 smbios_get_tables(mem_array, array_count,
735 &smbios_tables, &smbios_tables_len,
736 &smbios_anchor, &smbios_anchor_len);
740 fw_cfg_add_file(pcms->fw_cfg, "etc/smbios/smbios-tables",
741 smbios_tables, smbios_tables_len);
742 fw_cfg_add_file(pcms->fw_cfg, "etc/smbios/smbios-anchor",
743 smbios_anchor, smbios_anchor_len);
747 static FWCfgState *bochs_bios_init(AddressSpace *as, PCMachineState *pcms)
750 uint64_t *numa_fw_cfg;
752 const CPUArchIdList *cpus;
753 MachineClass *mc = MACHINE_GET_CLASS(pcms);
755 fw_cfg = fw_cfg_init_io_dma(FW_CFG_IO_BASE, FW_CFG_IO_BASE + 4, as);
756 fw_cfg_add_i16(fw_cfg, FW_CFG_NB_CPUS, pcms->boot_cpus);
758 /* FW_CFG_MAX_CPUS is a bit confusing/problematic on x86:
760 * For machine types prior to 1.8, SeaBIOS needs FW_CFG_MAX_CPUS for
761 * building MPTable, ACPI MADT, ACPI CPU hotplug and ACPI SRAT table,
762 * that tables are based on xAPIC ID and QEMU<->SeaBIOS interface
763 * for CPU hotplug also uses APIC ID and not "CPU index".
764 * This means that FW_CFG_MAX_CPUS is not the "maximum number of CPUs",
765 * but the "limit to the APIC ID values SeaBIOS may see".
767 * So for compatibility reasons with old BIOSes we are stuck with
768 * "etc/max-cpus" actually being apic_id_limit
770 fw_cfg_add_i16(fw_cfg, FW_CFG_MAX_CPUS, (uint16_t)pcms->apic_id_limit);
771 fw_cfg_add_i64(fw_cfg, FW_CFG_RAM_SIZE, (uint64_t)ram_size);
772 fw_cfg_add_bytes(fw_cfg, FW_CFG_ACPI_TABLES,
773 acpi_tables, acpi_tables_len);
774 fw_cfg_add_i32(fw_cfg, FW_CFG_IRQ0_OVERRIDE, kvm_allows_irq0_override());
776 fw_cfg_add_bytes(fw_cfg, FW_CFG_E820_TABLE,
777 &e820_reserve, sizeof(e820_reserve));
778 fw_cfg_add_file(fw_cfg, "etc/e820", e820_table,
779 sizeof(struct e820_entry) * e820_entries);
781 fw_cfg_add_bytes(fw_cfg, FW_CFG_HPET, &hpet_cfg, sizeof(hpet_cfg));
782 /* allocate memory for the NUMA channel: one (64bit) word for the number
783 * of nodes, one word for each VCPU->node and one word for each node to
784 * hold the amount of memory.
786 numa_fw_cfg = g_new0(uint64_t, 1 + pcms->apic_id_limit + nb_numa_nodes);
787 numa_fw_cfg[0] = cpu_to_le64(nb_numa_nodes);
788 cpus = mc->possible_cpu_arch_ids(MACHINE(pcms));
789 for (i = 0; i < cpus->len; i++) {
790 unsigned int apic_id = cpus->cpus[i].arch_id;
791 assert(apic_id < pcms->apic_id_limit);
792 numa_fw_cfg[apic_id + 1] = cpu_to_le64(cpus->cpus[i].props.node_id);
794 for (i = 0; i < nb_numa_nodes; i++) {
795 numa_fw_cfg[pcms->apic_id_limit + 1 + i] =
796 cpu_to_le64(numa_info[i].node_mem);
798 fw_cfg_add_bytes(fw_cfg, FW_CFG_NUMA, numa_fw_cfg,
799 (1 + pcms->apic_id_limit + nb_numa_nodes) *
800 sizeof(*numa_fw_cfg));
805 static long get_file_size(FILE *f)
809 /* XXX: on Unix systems, using fstat() probably makes more sense */
812 fseek(f, 0, SEEK_END);
814 fseek(f, where, SEEK_SET);
819 /* setup_data types */
821 #define SETUP_E820_EXT 1
831 } __attribute__((packed));
833 static void load_linux(PCMachineState *pcms,
837 int setup_size, kernel_size, initrd_size = 0, cmdline_size;
838 int dtb_size, setup_data_offset;
840 uint8_t header[8192], *setup, *kernel, *initrd_data;
841 hwaddr real_addr, prot_addr, cmdline_addr, initrd_addr = 0;
844 MachineState *machine = MACHINE(pcms);
845 PCMachineClass *pcmc = PC_MACHINE_GET_CLASS(pcms);
846 struct setup_data *setup_data;
847 const char *kernel_filename = machine->kernel_filename;
848 const char *initrd_filename = machine->initrd_filename;
849 const char *dtb_filename = machine->dtb;
850 const char *kernel_cmdline = machine->kernel_cmdline;
852 /* Align to 16 bytes as a paranoia measure */
853 cmdline_size = (strlen(kernel_cmdline)+16) & ~15;
855 /* load the kernel header */
856 f = fopen(kernel_filename, "rb");
857 if (!f || !(kernel_size = get_file_size(f)) ||
858 fread(header, 1, MIN(ARRAY_SIZE(header), kernel_size), f) !=
859 MIN(ARRAY_SIZE(header), kernel_size)) {
860 fprintf(stderr, "qemu: could not load kernel '%s': %s\n",
861 kernel_filename, strerror(errno));
865 /* kernel protocol version */
867 fprintf(stderr, "header magic: %#x\n", ldl_p(header+0x202));
869 if (ldl_p(header+0x202) == 0x53726448) {
870 protocol = lduw_p(header+0x206);
872 /* This looks like a multiboot kernel. If it is, let's stop
873 treating it like a Linux kernel. */
874 if (load_multiboot(fw_cfg, f, kernel_filename, initrd_filename,
875 kernel_cmdline, kernel_size, header)) {
881 if (protocol < 0x200 || !(header[0x211] & 0x01)) {
884 cmdline_addr = 0x9a000 - cmdline_size;
886 } else if (protocol < 0x202) {
887 /* High but ancient kernel */
889 cmdline_addr = 0x9a000 - cmdline_size;
890 prot_addr = 0x100000;
892 /* High and recent kernel */
894 cmdline_addr = 0x20000;
895 prot_addr = 0x100000;
900 "qemu: real_addr = 0x" TARGET_FMT_plx "\n"
901 "qemu: cmdline_addr = 0x" TARGET_FMT_plx "\n"
902 "qemu: prot_addr = 0x" TARGET_FMT_plx "\n",
908 /* highest address for loading the initrd */
909 if (protocol >= 0x203) {
910 initrd_max = ldl_p(header+0x22c);
912 initrd_max = 0x37ffffff;
915 if (initrd_max >= pcms->below_4g_mem_size - pcmc->acpi_data_size) {
916 initrd_max = pcms->below_4g_mem_size - pcmc->acpi_data_size - 1;
919 fw_cfg_add_i32(fw_cfg, FW_CFG_CMDLINE_ADDR, cmdline_addr);
920 fw_cfg_add_i32(fw_cfg, FW_CFG_CMDLINE_SIZE, strlen(kernel_cmdline)+1);
921 fw_cfg_add_string(fw_cfg, FW_CFG_CMDLINE_DATA, kernel_cmdline);
923 if (protocol >= 0x202) {
924 stl_p(header+0x228, cmdline_addr);
926 stw_p(header+0x20, 0xA33F);
927 stw_p(header+0x22, cmdline_addr-real_addr);
930 /* handle vga= parameter */
931 vmode = strstr(kernel_cmdline, "vga=");
933 unsigned int video_mode;
936 if (!strncmp(vmode, "normal", 6)) {
938 } else if (!strncmp(vmode, "ext", 3)) {
940 } else if (!strncmp(vmode, "ask", 3)) {
943 video_mode = strtol(vmode, NULL, 0);
945 stw_p(header+0x1fa, video_mode);
949 /* High nybble = B reserved for QEMU; low nybble is revision number.
950 If this code is substantially changed, you may want to consider
951 incrementing the revision. */
952 if (protocol >= 0x200) {
953 header[0x210] = 0xB0;
956 if (protocol >= 0x201) {
957 header[0x211] |= 0x80; /* CAN_USE_HEAP */
958 stw_p(header+0x224, cmdline_addr-real_addr-0x200);
962 if (initrd_filename) {
963 if (protocol < 0x200) {
964 fprintf(stderr, "qemu: linux kernel too old to load a ram disk\n");
968 initrd_size = get_image_size(initrd_filename);
969 if (initrd_size < 0) {
970 fprintf(stderr, "qemu: error reading initrd %s: %s\n",
971 initrd_filename, strerror(errno));
975 initrd_addr = (initrd_max-initrd_size) & ~4095;
977 initrd_data = g_malloc(initrd_size);
978 load_image(initrd_filename, initrd_data);
980 fw_cfg_add_i32(fw_cfg, FW_CFG_INITRD_ADDR, initrd_addr);
981 fw_cfg_add_i32(fw_cfg, FW_CFG_INITRD_SIZE, initrd_size);
982 fw_cfg_add_bytes(fw_cfg, FW_CFG_INITRD_DATA, initrd_data, initrd_size);
984 stl_p(header+0x218, initrd_addr);
985 stl_p(header+0x21c, initrd_size);
988 /* load kernel and setup */
989 setup_size = header[0x1f1];
990 if (setup_size == 0) {
993 setup_size = (setup_size+1)*512;
994 if (setup_size > kernel_size) {
995 fprintf(stderr, "qemu: invalid kernel header\n");
998 kernel_size -= setup_size;
1000 setup = g_malloc(setup_size);
1001 kernel = g_malloc(kernel_size);
1002 fseek(f, 0, SEEK_SET);
1003 if (fread(setup, 1, setup_size, f) != setup_size) {
1004 fprintf(stderr, "fread() failed\n");
1007 if (fread(kernel, 1, kernel_size, f) != kernel_size) {
1008 fprintf(stderr, "fread() failed\n");
1013 /* append dtb to kernel */
1015 if (protocol < 0x209) {
1016 fprintf(stderr, "qemu: Linux kernel too old to load a dtb\n");
1020 dtb_size = get_image_size(dtb_filename);
1021 if (dtb_size <= 0) {
1022 fprintf(stderr, "qemu: error reading dtb %s: %s\n",
1023 dtb_filename, strerror(errno));
1027 setup_data_offset = QEMU_ALIGN_UP(kernel_size, 16);
1028 kernel_size = setup_data_offset + sizeof(struct setup_data) + dtb_size;
1029 kernel = g_realloc(kernel, kernel_size);
1031 stq_p(header+0x250, prot_addr + setup_data_offset);
1033 setup_data = (struct setup_data *)(kernel + setup_data_offset);
1034 setup_data->next = 0;
1035 setup_data->type = cpu_to_le32(SETUP_DTB);
1036 setup_data->len = cpu_to_le32(dtb_size);
1038 load_image_size(dtb_filename, setup_data->data, dtb_size);
1041 memcpy(setup, header, MIN(sizeof(header), setup_size));
1043 fw_cfg_add_i32(fw_cfg, FW_CFG_KERNEL_ADDR, prot_addr);
1044 fw_cfg_add_i32(fw_cfg, FW_CFG_KERNEL_SIZE, kernel_size);
1045 fw_cfg_add_bytes(fw_cfg, FW_CFG_KERNEL_DATA, kernel, kernel_size);
1047 fw_cfg_add_i32(fw_cfg, FW_CFG_SETUP_ADDR, real_addr);
1048 fw_cfg_add_i32(fw_cfg, FW_CFG_SETUP_SIZE, setup_size);
1049 fw_cfg_add_bytes(fw_cfg, FW_CFG_SETUP_DATA, setup, setup_size);
1051 option_rom[nb_option_roms].bootindex = 0;
1052 option_rom[nb_option_roms].name = "linuxboot.bin";
1053 if (pcmc->linuxboot_dma_enabled && fw_cfg_dma_enabled(fw_cfg)) {
1054 option_rom[nb_option_roms].name = "linuxboot_dma.bin";
1059 #define NE2000_NB_MAX 6
1061 static const int ne2000_io[NE2000_NB_MAX] = { 0x300, 0x320, 0x340, 0x360,
1063 static const int ne2000_irq[NE2000_NB_MAX] = { 9, 10, 11, 3, 4, 5 };
1065 void pc_init_ne2k_isa(ISABus *bus, NICInfo *nd)
1067 static int nb_ne2k = 0;
1069 if (nb_ne2k == NE2000_NB_MAX)
1071 isa_ne2000_init(bus, ne2000_io[nb_ne2k],
1072 ne2000_irq[nb_ne2k], nd);
1076 DeviceState *cpu_get_current_apic(void)
1079 X86CPU *cpu = X86_CPU(current_cpu);
1080 return cpu->apic_state;
1086 void pc_acpi_smi_interrupt(void *opaque, int irq, int level)
1088 X86CPU *cpu = opaque;
1091 cpu_interrupt(CPU(cpu), CPU_INTERRUPT_SMI);
1095 static void pc_new_cpu(const char *typename, int64_t apic_id, Error **errp)
1098 Error *local_err = NULL;
1100 cpu = object_new(typename);
1102 object_property_set_uint(cpu, apic_id, "apic-id", &local_err);
1103 object_property_set_bool(cpu, true, "realized", &local_err);
1106 error_propagate(errp, local_err);
1109 void pc_hot_add_cpu(const int64_t id, Error **errp)
1111 MachineState *ms = MACHINE(qdev_get_machine());
1112 int64_t apic_id = x86_cpu_apic_id_from_index(id);
1113 Error *local_err = NULL;
1116 error_setg(errp, "Invalid CPU id: %" PRIi64, id);
1120 if (apic_id >= ACPI_CPU_HOTPLUG_ID_LIMIT) {
1121 error_setg(errp, "Unable to add CPU: %" PRIi64
1122 ", resulting APIC ID (%" PRIi64 ") is too large",
1127 pc_new_cpu(ms->cpu_type, apic_id, &local_err);
1129 error_propagate(errp, local_err);
1134 void pc_cpus_init(PCMachineState *pcms)
1137 const CPUArchIdList *possible_cpus;
1138 MachineState *ms = MACHINE(pcms);
1139 MachineClass *mc = MACHINE_GET_CLASS(pcms);
1141 /* Calculates the limit to CPU APIC ID values
1143 * Limit for the APIC ID value, so that all
1144 * CPU APIC IDs are < pcms->apic_id_limit.
1146 * This is used for FW_CFG_MAX_CPUS. See comments on bochs_bios_init().
1148 pcms->apic_id_limit = x86_cpu_apic_id_from_index(max_cpus - 1) + 1;
1149 possible_cpus = mc->possible_cpu_arch_ids(ms);
1150 for (i = 0; i < smp_cpus; i++) {
1151 pc_new_cpu(ms->cpu_type, possible_cpus->cpus[i].arch_id, &error_fatal);
1155 static void pc_build_feature_control_file(PCMachineState *pcms)
1157 MachineState *ms = MACHINE(pcms);
1158 X86CPU *cpu = X86_CPU(ms->possible_cpus->cpus[0].cpu);
1159 CPUX86State *env = &cpu->env;
1160 uint32_t unused, ecx, edx;
1161 uint64_t feature_control_bits = 0;
1164 cpu_x86_cpuid(env, 1, 0, &unused, &unused, &ecx, &edx);
1165 if (ecx & CPUID_EXT_VMX) {
1166 feature_control_bits |= FEATURE_CONTROL_VMXON_ENABLED_OUTSIDE_SMX;
1169 if ((edx & (CPUID_EXT2_MCE | CPUID_EXT2_MCA)) ==
1170 (CPUID_EXT2_MCE | CPUID_EXT2_MCA) &&
1171 (env->mcg_cap & MCG_LMCE_P)) {
1172 feature_control_bits |= FEATURE_CONTROL_LMCE;
1175 if (!feature_control_bits) {
1179 val = g_malloc(sizeof(*val));
1180 *val = cpu_to_le64(feature_control_bits | FEATURE_CONTROL_LOCKED);
1181 fw_cfg_add_file(pcms->fw_cfg, "etc/msr_feature_control", val, sizeof(*val));
1184 static void rtc_set_cpus_count(ISADevice *rtc, uint16_t cpus_count)
1186 if (cpus_count > 0xff) {
1187 /* If the number of CPUs can't be represented in 8 bits, the
1188 * BIOS must use "FW_CFG_NB_CPUS". Set RTC field to 0 just
1189 * to make old BIOSes fail more predictably.
1191 rtc_set_memory(rtc, 0x5f, 0);
1193 rtc_set_memory(rtc, 0x5f, cpus_count - 1);
1198 void pc_machine_done(Notifier *notifier, void *data)
1200 PCMachineState *pcms = container_of(notifier,
1201 PCMachineState, machine_done);
1202 PCIBus *bus = pcms->bus;
1204 /* set the number of CPUs */
1205 rtc_set_cpus_count(pcms->rtc, pcms->boot_cpus);
1208 int extra_hosts = 0;
1210 QLIST_FOREACH(bus, &bus->child, sibling) {
1211 /* look for expander root buses */
1212 if (pci_bus_is_root(bus)) {
1216 if (extra_hosts && pcms->fw_cfg) {
1217 uint64_t *val = g_malloc(sizeof(*val));
1218 *val = cpu_to_le64(extra_hosts);
1219 fw_cfg_add_file(pcms->fw_cfg,
1220 "etc/extra-pci-roots", val, sizeof(*val));
1226 pc_build_smbios(pcms);
1227 pc_build_feature_control_file(pcms);
1228 /* update FW_CFG_NB_CPUS to account for -device added CPUs */
1229 fw_cfg_modify_i16(pcms->fw_cfg, FW_CFG_NB_CPUS, pcms->boot_cpus);
1232 if (pcms->apic_id_limit > 255 && !xen_enabled()) {
1233 IntelIOMMUState *iommu = INTEL_IOMMU_DEVICE(x86_iommu_get_default());
1235 if (!iommu || !iommu->x86_iommu.intr_supported ||
1236 iommu->intr_eim != ON_OFF_AUTO_ON) {
1237 error_report("current -smp configuration requires "
1238 "Extended Interrupt Mode enabled. "
1239 "You can add an IOMMU using: "
1240 "-device intel-iommu,intremap=on,eim=on");
1246 void pc_guest_info_init(PCMachineState *pcms)
1250 pcms->apic_xrupt_override = kvm_allows_irq0_override();
1251 pcms->numa_nodes = nb_numa_nodes;
1252 pcms->node_mem = g_malloc0(pcms->numa_nodes *
1253 sizeof *pcms->node_mem);
1254 for (i = 0; i < nb_numa_nodes; i++) {
1255 pcms->node_mem[i] = numa_info[i].node_mem;
1258 pcms->machine_done.notify = pc_machine_done;
1259 qemu_add_machine_init_done_notifier(&pcms->machine_done);
1262 /* setup pci memory address space mapping into system address space */
1263 void pc_pci_as_mapping_init(Object *owner, MemoryRegion *system_memory,
1264 MemoryRegion *pci_address_space)
1266 /* Set to lower priority than RAM */
1267 memory_region_add_subregion_overlap(system_memory, 0x0,
1268 pci_address_space, -1);
1271 void pc_acpi_init(const char *default_dsdt)
1275 if (acpi_tables != NULL) {
1276 /* manually set via -acpitable, leave it alone */
1280 filename = qemu_find_file(QEMU_FILE_TYPE_BIOS, default_dsdt);
1281 if (filename == NULL) {
1282 warn_report("failed to find %s", default_dsdt);
1284 QemuOpts *opts = qemu_opts_create(qemu_find_opts("acpi"), NULL, 0,
1288 qemu_opt_set(opts, "file", filename, &error_abort);
1290 acpi_table_add_builtin(opts, &err);
1292 warn_reportf_err(err, "failed to load %s: ", filename);
1298 void xen_load_linux(PCMachineState *pcms)
1303 assert(MACHINE(pcms)->kernel_filename != NULL);
1305 fw_cfg = fw_cfg_init_io(FW_CFG_IO_BASE);
1306 fw_cfg_add_i16(fw_cfg, FW_CFG_NB_CPUS, pcms->boot_cpus);
1309 load_linux(pcms, fw_cfg);
1310 for (i = 0; i < nb_option_roms; i++) {
1311 assert(!strcmp(option_rom[i].name, "linuxboot.bin") ||
1312 !strcmp(option_rom[i].name, "linuxboot_dma.bin") ||
1313 !strcmp(option_rom[i].name, "multiboot.bin"));
1314 rom_add_option(option_rom[i].name, option_rom[i].bootindex);
1316 pcms->fw_cfg = fw_cfg;
1319 void pc_memory_init(PCMachineState *pcms,
1320 MemoryRegion *system_memory,
1321 MemoryRegion *rom_memory,
1322 MemoryRegion **ram_memory)
1325 MemoryRegion *ram, *option_rom_mr;
1326 MemoryRegion *ram_below_4g, *ram_above_4g;
1328 MachineState *machine = MACHINE(pcms);
1329 PCMachineClass *pcmc = PC_MACHINE_GET_CLASS(pcms);
1331 assert(machine->ram_size == pcms->below_4g_mem_size +
1332 pcms->above_4g_mem_size);
1334 linux_boot = (machine->kernel_filename != NULL);
1336 /* Allocate RAM. We allocate it as a single memory region and use
1337 * aliases to address portions of it, mostly for backwards compatibility
1338 * with older qemus that used qemu_ram_alloc().
1340 ram = g_malloc(sizeof(*ram));
1341 memory_region_allocate_system_memory(ram, NULL, "pc.ram",
1344 ram_below_4g = g_malloc(sizeof(*ram_below_4g));
1345 memory_region_init_alias(ram_below_4g, NULL, "ram-below-4g", ram,
1346 0, pcms->below_4g_mem_size);
1347 memory_region_add_subregion(system_memory, 0, ram_below_4g);
1348 e820_add_entry(0, pcms->below_4g_mem_size, E820_RAM);
1349 if (pcms->above_4g_mem_size > 0) {
1350 ram_above_4g = g_malloc(sizeof(*ram_above_4g));
1351 memory_region_init_alias(ram_above_4g, NULL, "ram-above-4g", ram,
1352 pcms->below_4g_mem_size,
1353 pcms->above_4g_mem_size);
1354 memory_region_add_subregion(system_memory, 0x100000000ULL,
1356 e820_add_entry(0x100000000ULL, pcms->above_4g_mem_size, E820_RAM);
1359 if (!pcmc->has_reserved_memory &&
1360 (machine->ram_slots ||
1361 (machine->maxram_size > machine->ram_size))) {
1362 MachineClass *mc = MACHINE_GET_CLASS(machine);
1364 error_report("\"-memory 'slots|maxmem'\" is not supported by: %s",
1369 /* initialize hotplug memory address space */
1370 if (pcmc->has_reserved_memory &&
1371 (machine->ram_size < machine->maxram_size)) {
1372 ram_addr_t hotplug_mem_size =
1373 machine->maxram_size - machine->ram_size;
1375 if (machine->ram_slots > ACPI_MAX_RAM_SLOTS) {
1376 error_report("unsupported amount of memory slots: %"PRIu64,
1377 machine->ram_slots);
1381 if (QEMU_ALIGN_UP(machine->maxram_size,
1382 TARGET_PAGE_SIZE) != machine->maxram_size) {
1383 error_report("maximum memory size must by aligned to multiple of "
1384 "%d bytes", TARGET_PAGE_SIZE);
1388 pcms->hotplug_memory.base =
1389 ROUND_UP(0x100000000ULL + pcms->above_4g_mem_size, 1ULL << 30);
1391 if (pcmc->enforce_aligned_dimm) {
1392 /* size hotplug region assuming 1G page max alignment per slot */
1393 hotplug_mem_size += (1ULL << 30) * machine->ram_slots;
1396 if ((pcms->hotplug_memory.base + hotplug_mem_size) <
1398 error_report("unsupported amount of maximum memory: " RAM_ADDR_FMT,
1399 machine->maxram_size);
1403 memory_region_init(&pcms->hotplug_memory.mr, OBJECT(pcms),
1404 "hotplug-memory", hotplug_mem_size);
1405 memory_region_add_subregion(system_memory, pcms->hotplug_memory.base,
1406 &pcms->hotplug_memory.mr);
1409 /* Initialize PC system firmware */
1410 pc_system_firmware_init(rom_memory, !pcmc->pci_enabled);
1412 option_rom_mr = g_malloc(sizeof(*option_rom_mr));
1413 memory_region_init_ram(option_rom_mr, NULL, "pc.rom", PC_ROM_SIZE,
1415 if (pcmc->pci_enabled) {
1416 memory_region_set_readonly(option_rom_mr, true);
1418 memory_region_add_subregion_overlap(rom_memory,
1423 fw_cfg = bochs_bios_init(&address_space_memory, pcms);
1427 if (pcmc->has_reserved_memory && pcms->hotplug_memory.base) {
1428 uint64_t *val = g_malloc(sizeof(*val));
1429 PCMachineClass *pcmc = PC_MACHINE_GET_CLASS(pcms);
1430 uint64_t res_mem_end = pcms->hotplug_memory.base;
1432 if (!pcmc->broken_reserved_end) {
1433 res_mem_end += memory_region_size(&pcms->hotplug_memory.mr);
1435 *val = cpu_to_le64(ROUND_UP(res_mem_end, 0x1ULL << 30));
1436 fw_cfg_add_file(fw_cfg, "etc/reserved-memory-end", val, sizeof(*val));
1440 load_linux(pcms, fw_cfg);
1443 for (i = 0; i < nb_option_roms; i++) {
1444 rom_add_option(option_rom[i].name, option_rom[i].bootindex);
1446 pcms->fw_cfg = fw_cfg;
1448 /* Init default IOAPIC address space */
1449 pcms->ioapic_as = &address_space_memory;
1453 * The 64bit pci hole starts after "above 4G RAM" and
1454 * potentially the space reserved for memory hotplug.
1456 uint64_t pc_pci_hole64_start(void)
1458 PCMachineState *pcms = PC_MACHINE(qdev_get_machine());
1459 PCMachineClass *pcmc = PC_MACHINE_GET_CLASS(pcms);
1460 uint64_t hole64_start = 0;
1462 if (pcmc->has_reserved_memory && pcms->hotplug_memory.base) {
1463 hole64_start = pcms->hotplug_memory.base;
1464 if (!pcmc->broken_reserved_end) {
1465 hole64_start += memory_region_size(&pcms->hotplug_memory.mr);
1468 hole64_start = 0x100000000ULL + pcms->above_4g_mem_size;
1471 return ROUND_UP(hole64_start, 1ULL << 30);
1474 qemu_irq pc_allocate_cpu_irq(void)
1476 return qemu_allocate_irq(pic_irq_request, NULL, 0);
1479 DeviceState *pc_vga_init(ISABus *isa_bus, PCIBus *pci_bus)
1481 DeviceState *dev = NULL;
1483 rom_set_order_override(FW_CFG_ORDER_OVERRIDE_VGA);
1485 PCIDevice *pcidev = pci_vga_init(pci_bus);
1486 dev = pcidev ? &pcidev->qdev : NULL;
1487 } else if (isa_bus) {
1488 ISADevice *isadev = isa_vga_init(isa_bus);
1489 dev = isadev ? DEVICE(isadev) : NULL;
1491 rom_reset_order_override();
1495 static const MemoryRegionOps ioport80_io_ops = {
1496 .write = ioport80_write,
1497 .read = ioport80_read,
1498 .endianness = DEVICE_NATIVE_ENDIAN,
1500 .min_access_size = 1,
1501 .max_access_size = 1,
1505 static const MemoryRegionOps ioportF0_io_ops = {
1506 .write = ioportF0_write,
1507 .read = ioportF0_read,
1508 .endianness = DEVICE_NATIVE_ENDIAN,
1510 .min_access_size = 1,
1511 .max_access_size = 1,
1515 void pc_basic_device_init(ISABus *isa_bus, qemu_irq *gsi,
1516 ISADevice **rtc_state,
1523 DriveInfo *fd[MAX_FD];
1524 DeviceState *hpet = NULL;
1525 int pit_isa_irq = 0;
1526 qemu_irq pit_alt_irq = NULL;
1527 qemu_irq rtc_irq = NULL;
1529 ISADevice *i8042, *port92, *vmmouse, *pit = NULL;
1530 MemoryRegion *ioport80_io = g_new(MemoryRegion, 1);
1531 MemoryRegion *ioportF0_io = g_new(MemoryRegion, 1);
1533 memory_region_init_io(ioport80_io, NULL, &ioport80_io_ops, NULL, "ioport80", 1);
1534 memory_region_add_subregion(isa_bus->address_space_io, 0x80, ioport80_io);
1536 memory_region_init_io(ioportF0_io, NULL, &ioportF0_io_ops, NULL, "ioportF0", 1);
1537 memory_region_add_subregion(isa_bus->address_space_io, 0xf0, ioportF0_io);
1540 * Check if an HPET shall be created.
1542 * Without KVM_CAP_PIT_STATE2, we cannot switch off the in-kernel PIT
1543 * when the HPET wants to take over. Thus we have to disable the latter.
1545 if (!no_hpet && (!kvm_irqchip_in_kernel() || kvm_has_pit_state2())) {
1546 /* In order to set property, here not using sysbus_try_create_simple */
1547 hpet = qdev_try_create(NULL, TYPE_HPET);
1549 /* For pc-piix-*, hpet's intcap is always IRQ2. For pc-q35-1.7
1550 * and earlier, use IRQ2 for compat. Otherwise, use IRQ16~23,
1553 uint8_t compat = object_property_get_uint(OBJECT(hpet),
1556 qdev_prop_set_uint32(hpet, HPET_INTCAP, hpet_irqs);
1558 qdev_init_nofail(hpet);
1559 sysbus_mmio_map(SYS_BUS_DEVICE(hpet), 0, HPET_BASE);
1561 for (i = 0; i < GSI_NUM_PINS; i++) {
1562 sysbus_connect_irq(SYS_BUS_DEVICE(hpet), i, gsi[i]);
1565 pit_alt_irq = qdev_get_gpio_in(hpet, HPET_LEGACY_PIT_INT);
1566 rtc_irq = qdev_get_gpio_in(hpet, HPET_LEGACY_RTC_INT);
1569 *rtc_state = mc146818_rtc_init(isa_bus, 2000, rtc_irq);
1571 qemu_register_boot_set(pc_boot_set, *rtc_state);
1573 if (!xen_enabled() && has_pit) {
1574 if (kvm_pit_in_kernel()) {
1575 pit = kvm_pit_init(isa_bus, 0x40);
1577 pit = i8254_pit_init(isa_bus, 0x40, pit_isa_irq, pit_alt_irq);
1580 /* connect PIT to output control line of the HPET */
1581 qdev_connect_gpio_out(hpet, 0, qdev_get_gpio_in(DEVICE(pit), 0));
1583 pcspk_init(isa_bus, pit);
1586 serial_hds_isa_init(isa_bus, 0, MAX_SERIAL_PORTS);
1587 parallel_hds_isa_init(isa_bus, MAX_PARALLEL_PORTS);
1589 a20_line = qemu_allocate_irqs(handle_a20_line_change, first_cpu, 2);
1590 i8042 = isa_create_simple(isa_bus, "i8042");
1591 i8042_setup_a20_line(i8042, a20_line[0]);
1593 vmport_init(isa_bus);
1594 vmmouse = isa_try_create(isa_bus, "vmmouse");
1599 DeviceState *dev = DEVICE(vmmouse);
1600 qdev_prop_set_ptr(dev, "ps2_mouse", i8042);
1601 qdev_init_nofail(dev);
1603 port92 = isa_create_simple(isa_bus, "port92");
1604 port92_init(port92, a20_line[1]);
1607 DMA_init(isa_bus, 0);
1609 for(i = 0; i < MAX_FD; i++) {
1610 fd[i] = drive_get(IF_FLOPPY, 0, i);
1611 create_fdctrl |= !!fd[i];
1613 if (create_fdctrl) {
1614 fdctrl_init_isa(isa_bus, fd);
1618 void pc_nic_init(ISABus *isa_bus, PCIBus *pci_bus)
1622 rom_set_order_override(FW_CFG_ORDER_OVERRIDE_NIC);
1623 for (i = 0; i < nb_nics; i++) {
1624 NICInfo *nd = &nd_table[i];
1626 if (!pci_bus || (nd->model && strcmp(nd->model, "ne2k_isa") == 0)) {
1627 pc_init_ne2k_isa(isa_bus, nd);
1629 pci_nic_init_nofail(nd, pci_bus, "e1000", NULL);
1632 rom_reset_order_override();
1635 void pc_pci_device_init(PCIBus *pci_bus)
1640 /* Note: if=scsi is deprecated with PC machine types */
1641 max_bus = drive_get_max_bus(IF_SCSI);
1642 for (bus = 0; bus <= max_bus; bus++) {
1643 pci_create_simple(pci_bus, -1, "lsi53c895a");
1645 * By not creating frontends here, we make
1646 * scsi_legacy_handle_cmdline() create them, and warn that
1647 * this usage is deprecated.
1652 void ioapic_init_gsi(GSIState *gsi_state, const char *parent_name)
1658 if (kvm_ioapic_in_kernel()) {
1659 dev = qdev_create(NULL, "kvm-ioapic");
1661 dev = qdev_create(NULL, "ioapic");
1664 object_property_add_child(object_resolve_path(parent_name, NULL),
1665 "ioapic", OBJECT(dev), NULL);
1667 qdev_init_nofail(dev);
1668 d = SYS_BUS_DEVICE(dev);
1669 sysbus_mmio_map(d, 0, IO_APIC_DEFAULT_ADDRESS);
1671 for (i = 0; i < IOAPIC_NUM_PINS; i++) {
1672 gsi_state->ioapic_irq[i] = qdev_get_gpio_in(dev, i);
1676 static void pc_dimm_plug(HotplugHandler *hotplug_dev,
1677 DeviceState *dev, Error **errp)
1679 HotplugHandlerClass *hhc;
1680 Error *local_err = NULL;
1681 PCMachineState *pcms = PC_MACHINE(hotplug_dev);
1682 PCMachineClass *pcmc = PC_MACHINE_GET_CLASS(pcms);
1683 PCDIMMDevice *dimm = PC_DIMM(dev);
1684 PCDIMMDeviceClass *ddc = PC_DIMM_GET_CLASS(dimm);
1686 uint64_t align = TARGET_PAGE_SIZE;
1687 bool is_nvdimm = object_dynamic_cast(OBJECT(dev), TYPE_NVDIMM);
1689 mr = ddc->get_memory_region(dimm, &local_err);
1694 if (memory_region_get_alignment(mr) && pcmc->enforce_aligned_dimm) {
1695 align = memory_region_get_alignment(mr);
1698 if (!pcms->acpi_dev) {
1699 error_setg(&local_err,
1700 "memory hotplug is not enabled: missing acpi device");
1704 if (is_nvdimm && !pcms->acpi_nvdimm_state.is_enabled) {
1705 error_setg(&local_err,
1706 "nvdimm is not enabled: missing 'nvdimm' in '-M'");
1710 pc_dimm_memory_plug(dev, &pcms->hotplug_memory, mr, align, &local_err);
1716 nvdimm_plug(&pcms->acpi_nvdimm_state);
1719 hhc = HOTPLUG_HANDLER_GET_CLASS(pcms->acpi_dev);
1720 hhc->plug(HOTPLUG_HANDLER(pcms->acpi_dev), dev, &error_abort);
1722 error_propagate(errp, local_err);
1725 static void pc_dimm_unplug_request(HotplugHandler *hotplug_dev,
1726 DeviceState *dev, Error **errp)
1728 HotplugHandlerClass *hhc;
1729 Error *local_err = NULL;
1730 PCMachineState *pcms = PC_MACHINE(hotplug_dev);
1732 if (!pcms->acpi_dev) {
1733 error_setg(&local_err,
1734 "memory hotplug is not enabled: missing acpi device");
1738 if (object_dynamic_cast(OBJECT(dev), TYPE_NVDIMM)) {
1739 error_setg(&local_err,
1740 "nvdimm device hot unplug is not supported yet.");
1744 hhc = HOTPLUG_HANDLER_GET_CLASS(pcms->acpi_dev);
1745 hhc->unplug_request(HOTPLUG_HANDLER(pcms->acpi_dev), dev, &local_err);
1748 error_propagate(errp, local_err);
1751 static void pc_dimm_unplug(HotplugHandler *hotplug_dev,
1752 DeviceState *dev, Error **errp)
1754 PCMachineState *pcms = PC_MACHINE(hotplug_dev);
1755 PCDIMMDevice *dimm = PC_DIMM(dev);
1756 PCDIMMDeviceClass *ddc = PC_DIMM_GET_CLASS(dimm);
1758 HotplugHandlerClass *hhc;
1759 Error *local_err = NULL;
1761 mr = ddc->get_memory_region(dimm, &local_err);
1766 hhc = HOTPLUG_HANDLER_GET_CLASS(pcms->acpi_dev);
1767 hhc->unplug(HOTPLUG_HANDLER(pcms->acpi_dev), dev, &local_err);
1773 pc_dimm_memory_unplug(dev, &pcms->hotplug_memory, mr);
1774 object_unparent(OBJECT(dev));
1777 error_propagate(errp, local_err);
1780 static int pc_apic_cmp(const void *a, const void *b)
1782 CPUArchId *apic_a = (CPUArchId *)a;
1783 CPUArchId *apic_b = (CPUArchId *)b;
1785 return apic_a->arch_id - apic_b->arch_id;
1788 /* returns pointer to CPUArchId descriptor that matches CPU's apic_id
1789 * in ms->possible_cpus->cpus, if ms->possible_cpus->cpus has no
1790 * entry corresponding to CPU's apic_id returns NULL.
1792 static CPUArchId *pc_find_cpu_slot(MachineState *ms, uint32_t id, int *idx)
1794 CPUArchId apic_id, *found_cpu;
1796 apic_id.arch_id = id;
1797 found_cpu = bsearch(&apic_id, ms->possible_cpus->cpus,
1798 ms->possible_cpus->len, sizeof(*ms->possible_cpus->cpus),
1800 if (found_cpu && idx) {
1801 *idx = found_cpu - ms->possible_cpus->cpus;
1806 static void pc_cpu_plug(HotplugHandler *hotplug_dev,
1807 DeviceState *dev, Error **errp)
1809 CPUArchId *found_cpu;
1810 HotplugHandlerClass *hhc;
1811 Error *local_err = NULL;
1812 X86CPU *cpu = X86_CPU(dev);
1813 PCMachineState *pcms = PC_MACHINE(hotplug_dev);
1815 if (pcms->acpi_dev) {
1816 hhc = HOTPLUG_HANDLER_GET_CLASS(pcms->acpi_dev);
1817 hhc->plug(HOTPLUG_HANDLER(pcms->acpi_dev), dev, &local_err);
1823 /* increment the number of CPUs */
1826 rtc_set_cpus_count(pcms->rtc, pcms->boot_cpus);
1829 fw_cfg_modify_i16(pcms->fw_cfg, FW_CFG_NB_CPUS, pcms->boot_cpus);
1832 found_cpu = pc_find_cpu_slot(MACHINE(pcms), cpu->apic_id, NULL);
1833 found_cpu->cpu = OBJECT(dev);
1835 error_propagate(errp, local_err);
1837 static void pc_cpu_unplug_request_cb(HotplugHandler *hotplug_dev,
1838 DeviceState *dev, Error **errp)
1841 HotplugHandlerClass *hhc;
1842 Error *local_err = NULL;
1843 X86CPU *cpu = X86_CPU(dev);
1844 PCMachineState *pcms = PC_MACHINE(hotplug_dev);
1846 if (!pcms->acpi_dev) {
1847 error_setg(&local_err, "CPU hot unplug not supported without ACPI");
1851 pc_find_cpu_slot(MACHINE(pcms), cpu->apic_id, &idx);
1854 error_setg(&local_err, "Boot CPU is unpluggable");
1858 hhc = HOTPLUG_HANDLER_GET_CLASS(pcms->acpi_dev);
1859 hhc->unplug_request(HOTPLUG_HANDLER(pcms->acpi_dev), dev, &local_err);
1866 error_propagate(errp, local_err);
1870 static void pc_cpu_unplug_cb(HotplugHandler *hotplug_dev,
1871 DeviceState *dev, Error **errp)
1873 CPUArchId *found_cpu;
1874 HotplugHandlerClass *hhc;
1875 Error *local_err = NULL;
1876 X86CPU *cpu = X86_CPU(dev);
1877 PCMachineState *pcms = PC_MACHINE(hotplug_dev);
1879 hhc = HOTPLUG_HANDLER_GET_CLASS(pcms->acpi_dev);
1880 hhc->unplug(HOTPLUG_HANDLER(pcms->acpi_dev), dev, &local_err);
1886 found_cpu = pc_find_cpu_slot(MACHINE(pcms), cpu->apic_id, NULL);
1887 found_cpu->cpu = NULL;
1888 object_unparent(OBJECT(dev));
1890 /* decrement the number of CPUs */
1892 /* Update the number of CPUs in CMOS */
1893 rtc_set_cpus_count(pcms->rtc, pcms->boot_cpus);
1894 fw_cfg_modify_i16(pcms->fw_cfg, FW_CFG_NB_CPUS, pcms->boot_cpus);
1896 error_propagate(errp, local_err);
1899 static void pc_cpu_pre_plug(HotplugHandler *hotplug_dev,
1900 DeviceState *dev, Error **errp)
1904 CPUArchId *cpu_slot;
1905 X86CPUTopoInfo topo;
1906 X86CPU *cpu = X86_CPU(dev);
1907 MachineState *ms = MACHINE(hotplug_dev);
1908 PCMachineState *pcms = PC_MACHINE(hotplug_dev);
1910 if(!object_dynamic_cast(OBJECT(cpu), ms->cpu_type)) {
1911 error_setg(errp, "Invalid CPU type, expected cpu type: '%s'",
1916 /* if APIC ID is not set, set it based on socket/core/thread properties */
1917 if (cpu->apic_id == UNASSIGNED_APIC_ID) {
1918 int max_socket = (max_cpus - 1) / smp_threads / smp_cores;
1920 if (cpu->socket_id < 0) {
1921 error_setg(errp, "CPU socket-id is not set");
1923 } else if (cpu->socket_id > max_socket) {
1924 error_setg(errp, "Invalid CPU socket-id: %u must be in range 0:%u",
1925 cpu->socket_id, max_socket);
1928 if (cpu->core_id < 0) {
1929 error_setg(errp, "CPU core-id is not set");
1931 } else if (cpu->core_id > (smp_cores - 1)) {
1932 error_setg(errp, "Invalid CPU core-id: %u must be in range 0:%u",
1933 cpu->core_id, smp_cores - 1);
1936 if (cpu->thread_id < 0) {
1937 error_setg(errp, "CPU thread-id is not set");
1939 } else if (cpu->thread_id > (smp_threads - 1)) {
1940 error_setg(errp, "Invalid CPU thread-id: %u must be in range 0:%u",
1941 cpu->thread_id, smp_threads - 1);
1945 topo.pkg_id = cpu->socket_id;
1946 topo.core_id = cpu->core_id;
1947 topo.smt_id = cpu->thread_id;
1948 cpu->apic_id = apicid_from_topo_ids(smp_cores, smp_threads, &topo);
1951 cpu_slot = pc_find_cpu_slot(MACHINE(pcms), cpu->apic_id, &idx);
1953 MachineState *ms = MACHINE(pcms);
1955 x86_topo_ids_from_apicid(cpu->apic_id, smp_cores, smp_threads, &topo);
1956 error_setg(errp, "Invalid CPU [socket: %u, core: %u, thread: %u] with"
1957 " APIC ID %" PRIu32 ", valid index range 0:%d",
1958 topo.pkg_id, topo.core_id, topo.smt_id, cpu->apic_id,
1959 ms->possible_cpus->len - 1);
1963 if (cpu_slot->cpu) {
1964 error_setg(errp, "CPU[%d] with APIC ID %" PRIu32 " exists",
1969 /* if 'address' properties socket-id/core-id/thread-id are not set, set them
1970 * so that machine_query_hotpluggable_cpus would show correct values
1972 /* TODO: move socket_id/core_id/thread_id checks into x86_cpu_realizefn()
1973 * once -smp refactoring is complete and there will be CPU private
1974 * CPUState::nr_cores and CPUState::nr_threads fields instead of globals */
1975 x86_topo_ids_from_apicid(cpu->apic_id, smp_cores, smp_threads, &topo);
1976 if (cpu->socket_id != -1 && cpu->socket_id != topo.pkg_id) {
1977 error_setg(errp, "property socket-id: %u doesn't match set apic-id:"
1978 " 0x%x (socket-id: %u)", cpu->socket_id, cpu->apic_id, topo.pkg_id);
1981 cpu->socket_id = topo.pkg_id;
1983 if (cpu->core_id != -1 && cpu->core_id != topo.core_id) {
1984 error_setg(errp, "property core-id: %u doesn't match set apic-id:"
1985 " 0x%x (core-id: %u)", cpu->core_id, cpu->apic_id, topo.core_id);
1988 cpu->core_id = topo.core_id;
1990 if (cpu->thread_id != -1 && cpu->thread_id != topo.smt_id) {
1991 error_setg(errp, "property thread-id: %u doesn't match set apic-id:"
1992 " 0x%x (thread-id: %u)", cpu->thread_id, cpu->apic_id, topo.smt_id);
1995 cpu->thread_id = topo.smt_id;
1998 cs->cpu_index = idx;
2000 numa_cpu_pre_plug(cpu_slot, dev, errp);
2003 static void pc_machine_device_pre_plug_cb(HotplugHandler *hotplug_dev,
2004 DeviceState *dev, Error **errp)
2006 if (object_dynamic_cast(OBJECT(dev), TYPE_CPU)) {
2007 pc_cpu_pre_plug(hotplug_dev, dev, errp);
2011 static void pc_machine_device_plug_cb(HotplugHandler *hotplug_dev,
2012 DeviceState *dev, Error **errp)
2014 if (object_dynamic_cast(OBJECT(dev), TYPE_PC_DIMM)) {
2015 pc_dimm_plug(hotplug_dev, dev, errp);
2016 } else if (object_dynamic_cast(OBJECT(dev), TYPE_CPU)) {
2017 pc_cpu_plug(hotplug_dev, dev, errp);
2021 static void pc_machine_device_unplug_request_cb(HotplugHandler *hotplug_dev,
2022 DeviceState *dev, Error **errp)
2024 if (object_dynamic_cast(OBJECT(dev), TYPE_PC_DIMM)) {
2025 pc_dimm_unplug_request(hotplug_dev, dev, errp);
2026 } else if (object_dynamic_cast(OBJECT(dev), TYPE_CPU)) {
2027 pc_cpu_unplug_request_cb(hotplug_dev, dev, errp);
2029 error_setg(errp, "acpi: device unplug request for not supported device"
2030 " type: %s", object_get_typename(OBJECT(dev)));
2034 static void pc_machine_device_unplug_cb(HotplugHandler *hotplug_dev,
2035 DeviceState *dev, Error **errp)
2037 if (object_dynamic_cast(OBJECT(dev), TYPE_PC_DIMM)) {
2038 pc_dimm_unplug(hotplug_dev, dev, errp);
2039 } else if (object_dynamic_cast(OBJECT(dev), TYPE_CPU)) {
2040 pc_cpu_unplug_cb(hotplug_dev, dev, errp);
2042 error_setg(errp, "acpi: device unplug for not supported device"
2043 " type: %s", object_get_typename(OBJECT(dev)));
2047 static HotplugHandler *pc_get_hotpug_handler(MachineState *machine,
2050 PCMachineClass *pcmc = PC_MACHINE_GET_CLASS(machine);
2052 if (object_dynamic_cast(OBJECT(dev), TYPE_PC_DIMM) ||
2053 object_dynamic_cast(OBJECT(dev), TYPE_CPU)) {
2054 return HOTPLUG_HANDLER(machine);
2057 return pcmc->get_hotplug_handler ?
2058 pcmc->get_hotplug_handler(machine, dev) : NULL;
2062 pc_machine_get_hotplug_memory_region_size(Object *obj, Visitor *v,
2063 const char *name, void *opaque,
2066 PCMachineState *pcms = PC_MACHINE(obj);
2067 int64_t value = memory_region_size(&pcms->hotplug_memory.mr);
2069 visit_type_int(v, name, &value, errp);
2072 static void pc_machine_get_max_ram_below_4g(Object *obj, Visitor *v,
2073 const char *name, void *opaque,
2076 PCMachineState *pcms = PC_MACHINE(obj);
2077 uint64_t value = pcms->max_ram_below_4g;
2079 visit_type_size(v, name, &value, errp);
2082 static void pc_machine_set_max_ram_below_4g(Object *obj, Visitor *v,
2083 const char *name, void *opaque,
2086 PCMachineState *pcms = PC_MACHINE(obj);
2087 Error *error = NULL;
2090 visit_type_size(v, name, &value, &error);
2092 error_propagate(errp, error);
2095 if (value > (1ULL << 32)) {
2097 "Machine option 'max-ram-below-4g=%"PRIu64
2098 "' expects size less than or equal to 4G", value);
2099 error_propagate(errp, error);
2103 if (value < (1ULL << 20)) {
2104 warn_report("Only %" PRIu64 " bytes of RAM below the 4GiB boundary,"
2105 "BIOS may not work with less than 1MiB", value);
2108 pcms->max_ram_below_4g = value;
2111 static void pc_machine_get_vmport(Object *obj, Visitor *v, const char *name,
2112 void *opaque, Error **errp)
2114 PCMachineState *pcms = PC_MACHINE(obj);
2115 OnOffAuto vmport = pcms->vmport;
2117 visit_type_OnOffAuto(v, name, &vmport, errp);
2120 static void pc_machine_set_vmport(Object *obj, Visitor *v, const char *name,
2121 void *opaque, Error **errp)
2123 PCMachineState *pcms = PC_MACHINE(obj);
2125 visit_type_OnOffAuto(v, name, &pcms->vmport, errp);
2128 bool pc_machine_is_smm_enabled(PCMachineState *pcms)
2130 bool smm_available = false;
2132 if (pcms->smm == ON_OFF_AUTO_OFF) {
2136 if (tcg_enabled() || qtest_enabled()) {
2137 smm_available = true;
2138 } else if (kvm_enabled()) {
2139 smm_available = kvm_has_smm();
2142 if (smm_available) {
2146 if (pcms->smm == ON_OFF_AUTO_ON) {
2147 error_report("System Management Mode not supported by this hypervisor.");
2153 static void pc_machine_get_smm(Object *obj, Visitor *v, const char *name,
2154 void *opaque, Error **errp)
2156 PCMachineState *pcms = PC_MACHINE(obj);
2157 OnOffAuto smm = pcms->smm;
2159 visit_type_OnOffAuto(v, name, &smm, errp);
2162 static void pc_machine_set_smm(Object *obj, Visitor *v, const char *name,
2163 void *opaque, Error **errp)
2165 PCMachineState *pcms = PC_MACHINE(obj);
2167 visit_type_OnOffAuto(v, name, &pcms->smm, errp);
2170 static bool pc_machine_get_nvdimm(Object *obj, Error **errp)
2172 PCMachineState *pcms = PC_MACHINE(obj);
2174 return pcms->acpi_nvdimm_state.is_enabled;
2177 static void pc_machine_set_nvdimm(Object *obj, bool value, Error **errp)
2179 PCMachineState *pcms = PC_MACHINE(obj);
2181 pcms->acpi_nvdimm_state.is_enabled = value;
2184 static bool pc_machine_get_smbus(Object *obj, Error **errp)
2186 PCMachineState *pcms = PC_MACHINE(obj);
2191 static void pc_machine_set_smbus(Object *obj, bool value, Error **errp)
2193 PCMachineState *pcms = PC_MACHINE(obj);
2195 pcms->smbus = value;
2198 static bool pc_machine_get_sata(Object *obj, Error **errp)
2200 PCMachineState *pcms = PC_MACHINE(obj);
2205 static void pc_machine_set_sata(Object *obj, bool value, Error **errp)
2207 PCMachineState *pcms = PC_MACHINE(obj);
2212 static bool pc_machine_get_pit(Object *obj, Error **errp)
2214 PCMachineState *pcms = PC_MACHINE(obj);
2219 static void pc_machine_set_pit(Object *obj, bool value, Error **errp)
2221 PCMachineState *pcms = PC_MACHINE(obj);
2226 static void pc_machine_initfn(Object *obj)
2228 PCMachineState *pcms = PC_MACHINE(obj);
2230 pcms->max_ram_below_4g = 0; /* use default */
2231 pcms->smm = ON_OFF_AUTO_AUTO;
2232 pcms->vmport = ON_OFF_AUTO_AUTO;
2233 /* nvdimm is disabled on default. */
2234 pcms->acpi_nvdimm_state.is_enabled = false;
2235 /* acpi build is enabled by default if machine supports it */
2236 pcms->acpi_build_enabled = PC_MACHINE_GET_CLASS(pcms)->has_acpi_build;
2242 static void pc_machine_reset(void)
2247 qemu_devices_reset();
2249 /* Reset APIC after devices have been reset to cancel
2250 * any changes that qemu_devices_reset() might have done.
2255 if (cpu->apic_state) {
2256 device_reset(cpu->apic_state);
2261 static CpuInstanceProperties
2262 pc_cpu_index_to_props(MachineState *ms, unsigned cpu_index)
2264 MachineClass *mc = MACHINE_GET_CLASS(ms);
2265 const CPUArchIdList *possible_cpus = mc->possible_cpu_arch_ids(ms);
2267 assert(cpu_index < possible_cpus->len);
2268 return possible_cpus->cpus[cpu_index].props;
2271 static int64_t pc_get_default_cpu_node_id(const MachineState *ms, int idx)
2273 X86CPUTopoInfo topo;
2275 assert(idx < ms->possible_cpus->len);
2276 x86_topo_ids_from_apicid(ms->possible_cpus->cpus[idx].arch_id,
2277 smp_cores, smp_threads, &topo);
2278 return topo.pkg_id % nb_numa_nodes;
2281 static const CPUArchIdList *pc_possible_cpu_arch_ids(MachineState *ms)
2285 if (ms->possible_cpus) {
2287 * make sure that max_cpus hasn't changed since the first use, i.e.
2288 * -smp hasn't been parsed after it
2290 assert(ms->possible_cpus->len == max_cpus);
2291 return ms->possible_cpus;
2294 ms->possible_cpus = g_malloc0(sizeof(CPUArchIdList) +
2295 sizeof(CPUArchId) * max_cpus);
2296 ms->possible_cpus->len = max_cpus;
2297 for (i = 0; i < ms->possible_cpus->len; i++) {
2298 X86CPUTopoInfo topo;
2300 ms->possible_cpus->cpus[i].vcpus_count = 1;
2301 ms->possible_cpus->cpus[i].arch_id = x86_cpu_apic_id_from_index(i);
2302 x86_topo_ids_from_apicid(ms->possible_cpus->cpus[i].arch_id,
2303 smp_cores, smp_threads, &topo);
2304 ms->possible_cpus->cpus[i].props.has_socket_id = true;
2305 ms->possible_cpus->cpus[i].props.socket_id = topo.pkg_id;
2306 ms->possible_cpus->cpus[i].props.has_core_id = true;
2307 ms->possible_cpus->cpus[i].props.core_id = topo.core_id;
2308 ms->possible_cpus->cpus[i].props.has_thread_id = true;
2309 ms->possible_cpus->cpus[i].props.thread_id = topo.smt_id;
2311 return ms->possible_cpus;
2314 static void x86_nmi(NMIState *n, int cpu_index, Error **errp)
2316 /* cpu index isn't used */
2320 X86CPU *cpu = X86_CPU(cs);
2322 if (!cpu->apic_state) {
2323 cpu_interrupt(cs, CPU_INTERRUPT_NMI);
2325 apic_deliver_nmi(cpu->apic_state);
2330 static void pc_machine_class_init(ObjectClass *oc, void *data)
2332 MachineClass *mc = MACHINE_CLASS(oc);
2333 PCMachineClass *pcmc = PC_MACHINE_CLASS(oc);
2334 HotplugHandlerClass *hc = HOTPLUG_HANDLER_CLASS(oc);
2335 NMIClass *nc = NMI_CLASS(oc);
2337 pcmc->get_hotplug_handler = mc->get_hotplug_handler;
2338 pcmc->pci_enabled = true;
2339 pcmc->has_acpi_build = true;
2340 pcmc->rsdp_in_ram = true;
2341 pcmc->smbios_defaults = true;
2342 pcmc->smbios_uuid_encoded = true;
2343 pcmc->gigabyte_align = true;
2344 pcmc->has_reserved_memory = true;
2345 pcmc->kvmclock_enabled = true;
2346 pcmc->enforce_aligned_dimm = true;
2347 /* BIOS ACPI tables: 128K. Other BIOS datastructures: less than 4K reported
2348 * to be used at the moment, 32K should be enough for a while. */
2349 pcmc->acpi_data_size = 0x20000 + 0x8000;
2350 pcmc->save_tsc_khz = true;
2351 pcmc->linuxboot_dma_enabled = true;
2352 mc->get_hotplug_handler = pc_get_hotpug_handler;
2353 mc->cpu_index_to_instance_props = pc_cpu_index_to_props;
2354 mc->get_default_cpu_node_id = pc_get_default_cpu_node_id;
2355 mc->possible_cpu_arch_ids = pc_possible_cpu_arch_ids;
2356 mc->auto_enable_numa_with_memhp = true;
2357 mc->has_hotpluggable_cpus = true;
2358 mc->default_boot_order = "cad";
2359 mc->hot_add_cpu = pc_hot_add_cpu;
2360 mc->block_default_type = IF_IDE;
2362 mc->reset = pc_machine_reset;
2363 hc->pre_plug = pc_machine_device_pre_plug_cb;
2364 hc->plug = pc_machine_device_plug_cb;
2365 hc->unplug_request = pc_machine_device_unplug_request_cb;
2366 hc->unplug = pc_machine_device_unplug_cb;
2367 nc->nmi_monitor_handler = x86_nmi;
2368 mc->default_cpu_type = TARGET_DEFAULT_CPU_TYPE;
2370 object_class_property_add(oc, PC_MACHINE_MEMHP_REGION_SIZE, "int",
2371 pc_machine_get_hotplug_memory_region_size, NULL,
2372 NULL, NULL, &error_abort);
2374 object_class_property_add(oc, PC_MACHINE_MAX_RAM_BELOW_4G, "size",
2375 pc_machine_get_max_ram_below_4g, pc_machine_set_max_ram_below_4g,
2376 NULL, NULL, &error_abort);
2378 object_class_property_set_description(oc, PC_MACHINE_MAX_RAM_BELOW_4G,
2379 "Maximum ram below the 4G boundary (32bit boundary)", &error_abort);
2381 object_class_property_add(oc, PC_MACHINE_SMM, "OnOffAuto",
2382 pc_machine_get_smm, pc_machine_set_smm,
2383 NULL, NULL, &error_abort);
2384 object_class_property_set_description(oc, PC_MACHINE_SMM,
2385 "Enable SMM (pc & q35)", &error_abort);
2387 object_class_property_add(oc, PC_MACHINE_VMPORT, "OnOffAuto",
2388 pc_machine_get_vmport, pc_machine_set_vmport,
2389 NULL, NULL, &error_abort);
2390 object_class_property_set_description(oc, PC_MACHINE_VMPORT,
2391 "Enable vmport (pc & q35)", &error_abort);
2393 object_class_property_add_bool(oc, PC_MACHINE_NVDIMM,
2394 pc_machine_get_nvdimm, pc_machine_set_nvdimm, &error_abort);
2396 object_class_property_add_bool(oc, PC_MACHINE_SMBUS,
2397 pc_machine_get_smbus, pc_machine_set_smbus, &error_abort);
2399 object_class_property_add_bool(oc, PC_MACHINE_SATA,
2400 pc_machine_get_sata, pc_machine_set_sata, &error_abort);
2402 object_class_property_add_bool(oc, PC_MACHINE_PIT,
2403 pc_machine_get_pit, pc_machine_set_pit, &error_abort);
2406 static const TypeInfo pc_machine_info = {
2407 .name = TYPE_PC_MACHINE,
2408 .parent = TYPE_MACHINE,
2410 .instance_size = sizeof(PCMachineState),
2411 .instance_init = pc_machine_initfn,
2412 .class_size = sizeof(PCMachineClass),
2413 .class_init = pc_machine_class_init,
2414 .interfaces = (InterfaceInfo[]) {
2415 { TYPE_HOTPLUG_HANDLER },
2421 static void pc_machine_register_types(void)
2423 type_register_static(&pc_machine_info);
2426 type_init(pc_machine_register_types)