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
30 #include "vmware_vga.h"
33 #include "hpet_emul.h"
37 #include "multiboot.h"
38 #include "mc146818rtc.h"
48 #include "hw/block-common.h"
49 #include "ui/qemu-spice.h"
51 #include "exec-memory.h"
52 #include "arch_init.h"
55 /* output Bochs bios info messages */
58 /* debug PC/ISA interrupts */
62 #define DPRINTF(fmt, ...) \
63 do { printf("CPUIRQ: " fmt , ## __VA_ARGS__); } while (0)
65 #define DPRINTF(fmt, ...)
68 /* Leave a chunk of memory at the top of RAM for the BIOS ACPI tables. */
69 #define ACPI_DATA_SIZE 0x10000
70 #define BIOS_CFG_IOPORT 0x510
71 #define FW_CFG_ACPI_TABLES (FW_CFG_ARCH_LOCAL + 0)
72 #define FW_CFG_SMBIOS_ENTRIES (FW_CFG_ARCH_LOCAL + 1)
73 #define FW_CFG_IRQ0_OVERRIDE (FW_CFG_ARCH_LOCAL + 2)
74 #define FW_CFG_E820_TABLE (FW_CFG_ARCH_LOCAL + 3)
75 #define FW_CFG_HPET (FW_CFG_ARCH_LOCAL + 4)
77 #define MSI_ADDR_BASE 0xfee00000
79 #define E820_NR_ENTRIES 16
85 } QEMU_PACKED __attribute((__aligned__(4)));
89 struct e820_entry entry[E820_NR_ENTRIES];
90 } QEMU_PACKED __attribute((__aligned__(4)));
92 static struct e820_table e820_table;
93 struct hpet_fw_config hpet_cfg = {.count = UINT8_MAX};
95 void gsi_handler(void *opaque, int n, int level)
99 DPRINTF("pc: %s GSI %d\n", level ? "raising" : "lowering", n);
100 if (n < ISA_NUM_IRQS) {
101 qemu_set_irq(s->i8259_irq[n], level);
103 qemu_set_irq(s->ioapic_irq[n], level);
106 static void ioport80_write(void *opaque, uint32_t addr, uint32_t data)
110 /* MSDOS compatibility mode FPU exception support */
111 static qemu_irq ferr_irq;
113 void pc_register_ferr_irq(qemu_irq irq)
118 /* XXX: add IGNNE support */
119 void cpu_set_ferr(CPUX86State *s)
121 qemu_irq_raise(ferr_irq);
124 static void ioportF0_write(void *opaque, uint32_t addr, uint32_t data)
126 qemu_irq_lower(ferr_irq);
130 uint64_t cpu_get_tsc(CPUX86State *env)
132 return cpu_get_ticks();
137 static cpu_set_smm_t smm_set;
138 static void *smm_arg;
140 void cpu_smm_register(cpu_set_smm_t callback, void *arg)
142 assert(smm_set == NULL);
143 assert(smm_arg == NULL);
148 void cpu_smm_update(CPUX86State *env)
150 if (smm_set && smm_arg && env == first_cpu)
151 smm_set(!!(env->hflags & HF_SMM_MASK), smm_arg);
156 int cpu_get_pic_interrupt(CPUX86State *env)
160 intno = apic_get_interrupt(env->apic_state);
164 /* read the irq from the PIC */
165 if (!apic_accept_pic_intr(env->apic_state)) {
169 intno = pic_read_irq(isa_pic);
173 static void pic_irq_request(void *opaque, int irq, int level)
175 CPUX86State *env = first_cpu;
177 DPRINTF("pic_irqs: %s irq %d\n", level? "raise" : "lower", irq);
178 if (env->apic_state) {
180 if (apic_accept_pic_intr(env->apic_state)) {
181 apic_deliver_pic_intr(env->apic_state, level);
187 cpu_interrupt(env, CPU_INTERRUPT_HARD);
189 cpu_reset_interrupt(env, CPU_INTERRUPT_HARD);
193 /* PC cmos mappings */
195 #define REG_EQUIPMENT_BYTE 0x14
197 static int cmos_get_fd_drive_type(FDriveType fd0)
203 /* 1.44 Mb 3"5 drive */
207 /* 2.88 Mb 3"5 drive */
211 /* 1.2 Mb 5"5 drive */
214 case FDRIVE_DRV_NONE:
222 static void cmos_init_hd(ISADevice *s, int type_ofs, int info_ofs,
223 int16_t cylinders, int8_t heads, int8_t sectors)
225 rtc_set_memory(s, type_ofs, 47);
226 rtc_set_memory(s, info_ofs, cylinders);
227 rtc_set_memory(s, info_ofs + 1, cylinders >> 8);
228 rtc_set_memory(s, info_ofs + 2, heads);
229 rtc_set_memory(s, info_ofs + 3, 0xff);
230 rtc_set_memory(s, info_ofs + 4, 0xff);
231 rtc_set_memory(s, info_ofs + 5, 0xc0 | ((heads > 8) << 3));
232 rtc_set_memory(s, info_ofs + 6, cylinders);
233 rtc_set_memory(s, info_ofs + 7, cylinders >> 8);
234 rtc_set_memory(s, info_ofs + 8, sectors);
237 /* convert boot_device letter to something recognizable by the bios */
238 static int boot_device2nibble(char boot_device)
240 switch(boot_device) {
243 return 0x01; /* floppy boot */
245 return 0x02; /* hard drive boot */
247 return 0x03; /* CD-ROM boot */
249 return 0x04; /* Network boot */
254 static int set_boot_dev(ISADevice *s, const char *boot_device, int fd_bootchk)
256 #define PC_MAX_BOOT_DEVICES 3
257 int nbds, bds[3] = { 0, };
260 nbds = strlen(boot_device);
261 if (nbds > PC_MAX_BOOT_DEVICES) {
262 error_report("Too many boot devices for PC");
265 for (i = 0; i < nbds; i++) {
266 bds[i] = boot_device2nibble(boot_device[i]);
268 error_report("Invalid boot device for PC: '%c'",
273 rtc_set_memory(s, 0x3d, (bds[1] << 4) | bds[0]);
274 rtc_set_memory(s, 0x38, (bds[2] << 4) | (fd_bootchk ? 0x0 : 0x1));
278 static int pc_boot_set(void *opaque, const char *boot_device)
280 return set_boot_dev(opaque, boot_device, 0);
283 typedef struct pc_cmos_init_late_arg {
284 ISADevice *rtc_state;
286 } pc_cmos_init_late_arg;
288 static void pc_cmos_init_late(void *opaque)
290 pc_cmos_init_late_arg *arg = opaque;
291 ISADevice *s = arg->rtc_state;
293 int8_t heads, sectors;
298 if (ide_get_geometry(arg->idebus[0], 0,
299 &cylinders, &heads, §ors) >= 0) {
300 cmos_init_hd(s, 0x19, 0x1b, cylinders, heads, sectors);
303 if (ide_get_geometry(arg->idebus[0], 1,
304 &cylinders, &heads, §ors) >= 0) {
305 cmos_init_hd(s, 0x1a, 0x24, cylinders, heads, sectors);
308 rtc_set_memory(s, 0x12, val);
311 for (i = 0; i < 4; i++) {
312 /* NOTE: ide_get_geometry() returns the physical
313 geometry. It is always such that: 1 <= sects <= 63, 1
314 <= heads <= 16, 1 <= cylinders <= 16383. The BIOS
315 geometry can be different if a translation is done. */
316 if (ide_get_geometry(arg->idebus[i / 2], i % 2,
317 &cylinders, &heads, §ors) >= 0) {
318 trans = ide_get_bios_chs_trans(arg->idebus[i / 2], i % 2) - 1;
319 assert((trans & ~3) == 0);
320 val |= trans << (i * 2);
323 rtc_set_memory(s, 0x39, val);
325 qemu_unregister_reset(pc_cmos_init_late, opaque);
328 void pc_cmos_init(ram_addr_t ram_size, ram_addr_t above_4g_mem_size,
329 const char *boot_device,
330 ISADevice *floppy, BusState *idebus0, BusState *idebus1,
334 FDriveType fd_type[2] = { FDRIVE_DRV_NONE, FDRIVE_DRV_NONE };
335 static pc_cmos_init_late_arg arg;
337 /* various important CMOS locations needed by PC/Bochs bios */
340 val = 640; /* base memory in K */
341 rtc_set_memory(s, 0x15, val);
342 rtc_set_memory(s, 0x16, val >> 8);
344 val = (ram_size / 1024) - 1024;
347 rtc_set_memory(s, 0x17, val);
348 rtc_set_memory(s, 0x18, val >> 8);
349 rtc_set_memory(s, 0x30, val);
350 rtc_set_memory(s, 0x31, val >> 8);
352 if (above_4g_mem_size) {
353 rtc_set_memory(s, 0x5b, (unsigned int)above_4g_mem_size >> 16);
354 rtc_set_memory(s, 0x5c, (unsigned int)above_4g_mem_size >> 24);
355 rtc_set_memory(s, 0x5d, (uint64_t)above_4g_mem_size >> 32);
358 if (ram_size > (16 * 1024 * 1024))
359 val = (ram_size / 65536) - ((16 * 1024 * 1024) / 65536);
364 rtc_set_memory(s, 0x34, val);
365 rtc_set_memory(s, 0x35, val >> 8);
367 /* set the number of CPU */
368 rtc_set_memory(s, 0x5f, smp_cpus - 1);
370 /* set boot devices, and disable floppy signature check if requested */
371 if (set_boot_dev(s, boot_device, fd_bootchk)) {
377 for (i = 0; i < 2; i++) {
378 fd_type[i] = isa_fdc_get_drive_type(floppy, i);
381 val = (cmos_get_fd_drive_type(fd_type[0]) << 4) |
382 cmos_get_fd_drive_type(fd_type[1]);
383 rtc_set_memory(s, 0x10, val);
387 if (fd_type[0] < FDRIVE_DRV_NONE) {
390 if (fd_type[1] < FDRIVE_DRV_NONE) {
397 val |= 0x01; /* 1 drive, ready for boot */
400 val |= 0x41; /* 2 drives, ready for boot */
403 val |= 0x02; /* FPU is there */
404 val |= 0x04; /* PS/2 mouse installed */
405 rtc_set_memory(s, REG_EQUIPMENT_BYTE, val);
409 arg.idebus[0] = idebus0;
410 arg.idebus[1] = idebus1;
411 qemu_register_reset(pc_cmos_init_late, &arg);
414 /* port 92 stuff: could be split off */
415 typedef struct Port92State {
422 static void port92_write(void *opaque, uint32_t addr, uint32_t val)
424 Port92State *s = opaque;
426 DPRINTF("port92: write 0x%02x\n", val);
428 qemu_set_irq(*s->a20_out, (val >> 1) & 1);
430 qemu_system_reset_request();
434 static uint32_t port92_read(void *opaque, uint32_t addr)
436 Port92State *s = opaque;
440 DPRINTF("port92: read 0x%02x\n", ret);
444 static void port92_init(ISADevice *dev, qemu_irq *a20_out)
446 Port92State *s = DO_UPCAST(Port92State, dev, dev);
448 s->a20_out = a20_out;
451 static const VMStateDescription vmstate_port92_isa = {
454 .minimum_version_id = 1,
455 .minimum_version_id_old = 1,
456 .fields = (VMStateField []) {
457 VMSTATE_UINT8(outport, Port92State),
458 VMSTATE_END_OF_LIST()
462 static void port92_reset(DeviceState *d)
464 Port92State *s = container_of(d, Port92State, dev.qdev);
469 static const MemoryRegionPortio port92_portio[] = {
470 { 0, 1, 1, .read = port92_read, .write = port92_write },
471 PORTIO_END_OF_LIST(),
474 static const MemoryRegionOps port92_ops = {
475 .old_portio = port92_portio
478 static int port92_initfn(ISADevice *dev)
480 Port92State *s = DO_UPCAST(Port92State, dev, dev);
482 memory_region_init_io(&s->io, &port92_ops, s, "port92", 1);
483 isa_register_ioport(dev, &s->io, 0x92);
489 static void port92_class_initfn(ObjectClass *klass, void *data)
491 DeviceClass *dc = DEVICE_CLASS(klass);
492 ISADeviceClass *ic = ISA_DEVICE_CLASS(klass);
493 ic->init = port92_initfn;
495 dc->reset = port92_reset;
496 dc->vmsd = &vmstate_port92_isa;
499 static TypeInfo port92_info = {
501 .parent = TYPE_ISA_DEVICE,
502 .instance_size = sizeof(Port92State),
503 .class_init = port92_class_initfn,
506 static void port92_register_types(void)
508 type_register_static(&port92_info);
511 type_init(port92_register_types)
513 static void handle_a20_line_change(void *opaque, int irq, int level)
515 CPUX86State *cpu = opaque;
517 /* XXX: send to all CPUs ? */
518 /* XXX: add logic to handle multiple A20 line sources */
519 cpu_x86_set_a20(cpu, level);
522 /***********************************************************/
523 /* Bochs BIOS debug ports */
525 static void bochs_bios_write(void *opaque, uint32_t addr, uint32_t val)
527 static const char shutdown_str[8] = "Shutdown";
528 static int shutdown_index = 0;
531 /* Bochs BIOS messages */
534 /* used to be panic, now unused */
539 fprintf(stderr, "%c", val);
543 /* same as Bochs power off */
544 if (val == shutdown_str[shutdown_index]) {
546 if (shutdown_index == 8) {
548 qemu_system_shutdown_request();
555 /* LGPL'ed VGA BIOS messages */
558 exit((val << 1) | 1);
562 fprintf(stderr, "%c", val);
568 int e820_add_entry(uint64_t address, uint64_t length, uint32_t type)
570 int index = le32_to_cpu(e820_table.count);
571 struct e820_entry *entry;
573 if (index >= E820_NR_ENTRIES)
575 entry = &e820_table.entry[index++];
577 entry->address = cpu_to_le64(address);
578 entry->length = cpu_to_le64(length);
579 entry->type = cpu_to_le32(type);
581 e820_table.count = cpu_to_le32(index);
585 static void *bochs_bios_init(void)
588 uint8_t *smbios_table;
590 uint64_t *numa_fw_cfg;
593 register_ioport_write(0x400, 1, 2, bochs_bios_write, NULL);
594 register_ioport_write(0x401, 1, 2, bochs_bios_write, NULL);
595 register_ioport_write(0x402, 1, 1, bochs_bios_write, NULL);
596 register_ioport_write(0x403, 1, 1, bochs_bios_write, NULL);
597 register_ioport_write(0x8900, 1, 1, bochs_bios_write, NULL);
599 register_ioport_write(0x501, 1, 1, bochs_bios_write, NULL);
600 register_ioport_write(0x501, 1, 2, bochs_bios_write, NULL);
601 register_ioport_write(0x502, 1, 2, bochs_bios_write, NULL);
602 register_ioport_write(0x500, 1, 1, bochs_bios_write, NULL);
603 register_ioport_write(0x503, 1, 1, bochs_bios_write, NULL);
605 fw_cfg = fw_cfg_init(BIOS_CFG_IOPORT, BIOS_CFG_IOPORT + 1, 0, 0);
607 fw_cfg_add_i32(fw_cfg, FW_CFG_ID, 1);
608 fw_cfg_add_i64(fw_cfg, FW_CFG_RAM_SIZE, (uint64_t)ram_size);
609 fw_cfg_add_bytes(fw_cfg, FW_CFG_ACPI_TABLES, (uint8_t *)acpi_tables,
611 fw_cfg_add_i32(fw_cfg, FW_CFG_IRQ0_OVERRIDE, kvm_allows_irq0_override());
613 smbios_table = smbios_get_table(&smbios_len);
615 fw_cfg_add_bytes(fw_cfg, FW_CFG_SMBIOS_ENTRIES,
616 smbios_table, smbios_len);
617 fw_cfg_add_bytes(fw_cfg, FW_CFG_E820_TABLE, (uint8_t *)&e820_table,
618 sizeof(struct e820_table));
620 fw_cfg_add_bytes(fw_cfg, FW_CFG_HPET, (uint8_t *)&hpet_cfg,
621 sizeof(struct hpet_fw_config));
622 /* allocate memory for the NUMA channel: one (64bit) word for the number
623 * of nodes, one word for each VCPU->node and one word for each node to
624 * hold the amount of memory.
626 numa_fw_cfg = g_malloc0((1 + max_cpus + nb_numa_nodes) * 8);
627 numa_fw_cfg[0] = cpu_to_le64(nb_numa_nodes);
628 for (i = 0; i < max_cpus; i++) {
629 for (j = 0; j < nb_numa_nodes; j++) {
630 if (test_bit(i, node_cpumask[j])) {
631 numa_fw_cfg[i + 1] = cpu_to_le64(j);
636 for (i = 0; i < nb_numa_nodes; i++) {
637 numa_fw_cfg[max_cpus + 1 + i] = cpu_to_le64(node_mem[i]);
639 fw_cfg_add_bytes(fw_cfg, FW_CFG_NUMA, (uint8_t *)numa_fw_cfg,
640 (1 + max_cpus + nb_numa_nodes) * 8);
645 static long get_file_size(FILE *f)
649 /* XXX: on Unix systems, using fstat() probably makes more sense */
652 fseek(f, 0, SEEK_END);
654 fseek(f, where, SEEK_SET);
659 static void load_linux(void *fw_cfg,
660 const char *kernel_filename,
661 const char *initrd_filename,
662 const char *kernel_cmdline,
663 target_phys_addr_t max_ram_size)
666 int setup_size, kernel_size, initrd_size = 0, cmdline_size;
668 uint8_t header[8192], *setup, *kernel, *initrd_data;
669 target_phys_addr_t real_addr, prot_addr, cmdline_addr, initrd_addr = 0;
673 /* Align to 16 bytes as a paranoia measure */
674 cmdline_size = (strlen(kernel_cmdline)+16) & ~15;
676 /* load the kernel header */
677 f = fopen(kernel_filename, "rb");
678 if (!f || !(kernel_size = get_file_size(f)) ||
679 fread(header, 1, MIN(ARRAY_SIZE(header), kernel_size), f) !=
680 MIN(ARRAY_SIZE(header), kernel_size)) {
681 fprintf(stderr, "qemu: could not load kernel '%s': %s\n",
682 kernel_filename, strerror(errno));
686 /* kernel protocol version */
688 fprintf(stderr, "header magic: %#x\n", ldl_p(header+0x202));
690 if (ldl_p(header+0x202) == 0x53726448)
691 protocol = lduw_p(header+0x206);
693 /* This looks like a multiboot kernel. If it is, let's stop
694 treating it like a Linux kernel. */
695 if (load_multiboot(fw_cfg, f, kernel_filename, initrd_filename,
696 kernel_cmdline, kernel_size, header))
701 if (protocol < 0x200 || !(header[0x211] & 0x01)) {
704 cmdline_addr = 0x9a000 - cmdline_size;
706 } else if (protocol < 0x202) {
707 /* High but ancient kernel */
709 cmdline_addr = 0x9a000 - cmdline_size;
710 prot_addr = 0x100000;
712 /* High and recent kernel */
714 cmdline_addr = 0x20000;
715 prot_addr = 0x100000;
720 "qemu: real_addr = 0x" TARGET_FMT_plx "\n"
721 "qemu: cmdline_addr = 0x" TARGET_FMT_plx "\n"
722 "qemu: prot_addr = 0x" TARGET_FMT_plx "\n",
728 /* highest address for loading the initrd */
729 if (protocol >= 0x203)
730 initrd_max = ldl_p(header+0x22c);
732 initrd_max = 0x37ffffff;
734 if (initrd_max >= max_ram_size-ACPI_DATA_SIZE)
735 initrd_max = max_ram_size-ACPI_DATA_SIZE-1;
737 fw_cfg_add_i32(fw_cfg, FW_CFG_CMDLINE_ADDR, cmdline_addr);
738 fw_cfg_add_i32(fw_cfg, FW_CFG_CMDLINE_SIZE, strlen(kernel_cmdline)+1);
739 fw_cfg_add_bytes(fw_cfg, FW_CFG_CMDLINE_DATA,
740 (uint8_t*)strdup(kernel_cmdline),
741 strlen(kernel_cmdline)+1);
743 if (protocol >= 0x202) {
744 stl_p(header+0x228, cmdline_addr);
746 stw_p(header+0x20, 0xA33F);
747 stw_p(header+0x22, cmdline_addr-real_addr);
750 /* handle vga= parameter */
751 vmode = strstr(kernel_cmdline, "vga=");
753 unsigned int video_mode;
756 if (!strncmp(vmode, "normal", 6)) {
758 } else if (!strncmp(vmode, "ext", 3)) {
760 } else if (!strncmp(vmode, "ask", 3)) {
763 video_mode = strtol(vmode, NULL, 0);
765 stw_p(header+0x1fa, video_mode);
769 /* High nybble = B reserved for QEMU; low nybble is revision number.
770 If this code is substantially changed, you may want to consider
771 incrementing the revision. */
772 if (protocol >= 0x200)
773 header[0x210] = 0xB0;
776 if (protocol >= 0x201) {
777 header[0x211] |= 0x80; /* CAN_USE_HEAP */
778 stw_p(header+0x224, cmdline_addr-real_addr-0x200);
782 if (initrd_filename) {
783 if (protocol < 0x200) {
784 fprintf(stderr, "qemu: linux kernel too old to load a ram disk\n");
788 initrd_size = get_image_size(initrd_filename);
789 if (initrd_size < 0) {
790 fprintf(stderr, "qemu: error reading initrd %s\n",
795 initrd_addr = (initrd_max-initrd_size) & ~4095;
797 initrd_data = g_malloc(initrd_size);
798 load_image(initrd_filename, initrd_data);
800 fw_cfg_add_i32(fw_cfg, FW_CFG_INITRD_ADDR, initrd_addr);
801 fw_cfg_add_i32(fw_cfg, FW_CFG_INITRD_SIZE, initrd_size);
802 fw_cfg_add_bytes(fw_cfg, FW_CFG_INITRD_DATA, initrd_data, initrd_size);
804 stl_p(header+0x218, initrd_addr);
805 stl_p(header+0x21c, initrd_size);
808 /* load kernel and setup */
809 setup_size = header[0x1f1];
812 setup_size = (setup_size+1)*512;
813 kernel_size -= setup_size;
815 setup = g_malloc(setup_size);
816 kernel = g_malloc(kernel_size);
817 fseek(f, 0, SEEK_SET);
818 if (fread(setup, 1, setup_size, f) != setup_size) {
819 fprintf(stderr, "fread() failed\n");
822 if (fread(kernel, 1, kernel_size, f) != kernel_size) {
823 fprintf(stderr, "fread() failed\n");
827 memcpy(setup, header, MIN(sizeof(header), setup_size));
829 fw_cfg_add_i32(fw_cfg, FW_CFG_KERNEL_ADDR, prot_addr);
830 fw_cfg_add_i32(fw_cfg, FW_CFG_KERNEL_SIZE, kernel_size);
831 fw_cfg_add_bytes(fw_cfg, FW_CFG_KERNEL_DATA, kernel, kernel_size);
833 fw_cfg_add_i32(fw_cfg, FW_CFG_SETUP_ADDR, real_addr);
834 fw_cfg_add_i32(fw_cfg, FW_CFG_SETUP_SIZE, setup_size);
835 fw_cfg_add_bytes(fw_cfg, FW_CFG_SETUP_DATA, setup, setup_size);
837 option_rom[nb_option_roms].name = "linuxboot.bin";
838 option_rom[nb_option_roms].bootindex = 0;
842 #define NE2000_NB_MAX 6
844 static const int ne2000_io[NE2000_NB_MAX] = { 0x300, 0x320, 0x340, 0x360,
846 static const int ne2000_irq[NE2000_NB_MAX] = { 9, 10, 11, 3, 4, 5 };
848 static const int parallel_io[MAX_PARALLEL_PORTS] = { 0x378, 0x278, 0x3bc };
849 static const int parallel_irq[MAX_PARALLEL_PORTS] = { 7, 7, 7 };
851 void pc_init_ne2k_isa(ISABus *bus, NICInfo *nd)
853 static int nb_ne2k = 0;
855 if (nb_ne2k == NE2000_NB_MAX)
857 isa_ne2000_init(bus, ne2000_io[nb_ne2k],
858 ne2000_irq[nb_ne2k], nd);
862 DeviceState *cpu_get_current_apic(void)
864 if (cpu_single_env) {
865 return cpu_single_env->apic_state;
871 static DeviceState *apic_init(void *env, uint8_t apic_id)
874 static int apic_mapped;
876 if (kvm_irqchip_in_kernel()) {
877 dev = qdev_create(NULL, "kvm-apic");
878 } else if (xen_enabled()) {
879 dev = qdev_create(NULL, "xen-apic");
881 dev = qdev_create(NULL, "apic");
884 qdev_prop_set_uint8(dev, "id", apic_id);
885 qdev_prop_set_ptr(dev, "cpu_env", env);
886 qdev_init_nofail(dev);
888 /* XXX: mapping more APICs at the same memory location */
889 if (apic_mapped == 0) {
890 /* NOTE: the APIC is directly connected to the CPU - it is not
891 on the global memory bus. */
892 /* XXX: what if the base changes? */
893 sysbus_mmio_map(sysbus_from_qdev(dev), 0, MSI_ADDR_BASE);
900 void pc_acpi_smi_interrupt(void *opaque, int irq, int level)
902 CPUX86State *s = opaque;
905 cpu_interrupt(s, CPU_INTERRUPT_SMI);
909 static X86CPU *pc_new_cpu(const char *cpu_model)
914 cpu = cpu_x86_init(cpu_model);
916 fprintf(stderr, "Unable to find x86 CPU definition\n");
920 if ((env->cpuid_features & CPUID_APIC) || smp_cpus > 1) {
921 env->apic_state = apic_init(env, env->cpuid_apic_id);
927 void pc_cpus_init(const char *cpu_model)
932 if (cpu_model == NULL) {
934 cpu_model = "qemu64";
936 cpu_model = "qemu32";
940 for(i = 0; i < smp_cpus; i++) {
941 pc_new_cpu(cpu_model);
945 void *pc_memory_init(MemoryRegion *system_memory,
946 const char *kernel_filename,
947 const char *kernel_cmdline,
948 const char *initrd_filename,
949 ram_addr_t below_4g_mem_size,
950 ram_addr_t above_4g_mem_size,
951 MemoryRegion *rom_memory,
952 MemoryRegion **ram_memory)
955 MemoryRegion *ram, *option_rom_mr;
956 MemoryRegion *ram_below_4g, *ram_above_4g;
959 linux_boot = (kernel_filename != NULL);
961 /* Allocate RAM. We allocate it as a single memory region and use
962 * aliases to address portions of it, mostly for backwards compatibility
963 * with older qemus that used qemu_ram_alloc().
965 ram = g_malloc(sizeof(*ram));
966 memory_region_init_ram(ram, "pc.ram",
967 below_4g_mem_size + above_4g_mem_size);
968 vmstate_register_ram_global(ram);
970 ram_below_4g = g_malloc(sizeof(*ram_below_4g));
971 memory_region_init_alias(ram_below_4g, "ram-below-4g", ram,
972 0, below_4g_mem_size);
973 memory_region_add_subregion(system_memory, 0, ram_below_4g);
974 if (above_4g_mem_size > 0) {
975 ram_above_4g = g_malloc(sizeof(*ram_above_4g));
976 memory_region_init_alias(ram_above_4g, "ram-above-4g", ram,
977 below_4g_mem_size, above_4g_mem_size);
978 memory_region_add_subregion(system_memory, 0x100000000ULL,
983 /* Initialize PC system firmware */
984 pc_system_firmware_init(rom_memory);
986 option_rom_mr = g_malloc(sizeof(*option_rom_mr));
987 memory_region_init_ram(option_rom_mr, "pc.rom", PC_ROM_SIZE);
988 vmstate_register_ram_global(option_rom_mr);
989 memory_region_add_subregion_overlap(rom_memory,
994 fw_cfg = bochs_bios_init();
998 load_linux(fw_cfg, kernel_filename, initrd_filename, kernel_cmdline, below_4g_mem_size);
1001 for (i = 0; i < nb_option_roms; i++) {
1002 rom_add_option(option_rom[i].name, option_rom[i].bootindex);
1007 qemu_irq *pc_allocate_cpu_irq(void)
1009 return qemu_allocate_irqs(pic_irq_request, NULL, 1);
1012 DeviceState *pc_vga_init(ISABus *isa_bus, PCIBus *pci_bus)
1014 DeviceState *dev = NULL;
1016 if (cirrus_vga_enabled) {
1018 dev = pci_cirrus_vga_init(pci_bus);
1020 dev = &isa_create_simple(isa_bus, "isa-cirrus-vga")->qdev;
1022 } else if (vmsvga_enabled) {
1024 dev = pci_vmsvga_init(pci_bus);
1026 fprintf(stderr, "%s: vmware_vga: no PCI bus\n", __FUNCTION__);
1029 } else if (qxl_enabled) {
1031 dev = &pci_create_simple(pci_bus, -1, "qxl-vga")->qdev;
1033 fprintf(stderr, "%s: qxl: no PCI bus\n", __FUNCTION__);
1036 } else if (std_vga_enabled) {
1038 dev = pci_vga_init(pci_bus);
1040 dev = isa_vga_init(isa_bus);
1047 static void cpu_request_exit(void *opaque, int irq, int level)
1049 CPUX86State *env = cpu_single_env;
1056 void pc_basic_device_init(ISABus *isa_bus, qemu_irq *gsi,
1057 ISADevice **rtc_state,
1062 DriveInfo *fd[MAX_FD];
1063 DeviceState *hpet = NULL;
1064 int pit_isa_irq = 0;
1065 qemu_irq pit_alt_irq = NULL;
1066 qemu_irq rtc_irq = NULL;
1068 ISADevice *i8042, *port92, *vmmouse, *pit = NULL;
1069 qemu_irq *cpu_exit_irq;
1071 register_ioport_write(0x80, 1, 1, ioport80_write, NULL);
1073 register_ioport_write(0xf0, 1, 1, ioportF0_write, NULL);
1076 * Check if an HPET shall be created.
1078 * Without KVM_CAP_PIT_STATE2, we cannot switch off the in-kernel PIT
1079 * when the HPET wants to take over. Thus we have to disable the latter.
1081 if (!no_hpet && (!kvm_irqchip_in_kernel() || kvm_has_pit_state2())) {
1082 hpet = sysbus_try_create_simple("hpet", HPET_BASE, NULL);
1085 for (i = 0; i < GSI_NUM_PINS; i++) {
1086 sysbus_connect_irq(sysbus_from_qdev(hpet), i, gsi[i]);
1089 pit_alt_irq = qdev_get_gpio_in(hpet, HPET_LEGACY_PIT_INT);
1090 rtc_irq = qdev_get_gpio_in(hpet, HPET_LEGACY_RTC_INT);
1093 *rtc_state = rtc_init(isa_bus, 2000, rtc_irq);
1095 qemu_register_boot_set(pc_boot_set, *rtc_state);
1097 if (!xen_enabled()) {
1098 if (kvm_irqchip_in_kernel()) {
1099 pit = kvm_pit_init(isa_bus, 0x40);
1101 pit = pit_init(isa_bus, 0x40, pit_isa_irq, pit_alt_irq);
1104 /* connect PIT to output control line of the HPET */
1105 qdev_connect_gpio_out(hpet, 0, qdev_get_gpio_in(&pit->qdev, 0));
1107 pcspk_init(isa_bus, pit);
1110 for(i = 0; i < MAX_SERIAL_PORTS; i++) {
1111 if (serial_hds[i]) {
1112 serial_isa_init(isa_bus, i, serial_hds[i]);
1116 for(i = 0; i < MAX_PARALLEL_PORTS; i++) {
1117 if (parallel_hds[i]) {
1118 parallel_init(isa_bus, i, parallel_hds[i]);
1122 a20_line = qemu_allocate_irqs(handle_a20_line_change, first_cpu, 2);
1123 i8042 = isa_create_simple(isa_bus, "i8042");
1124 i8042_setup_a20_line(i8042, &a20_line[0]);
1126 vmport_init(isa_bus);
1127 vmmouse = isa_try_create(isa_bus, "vmmouse");
1132 qdev_prop_set_ptr(&vmmouse->qdev, "ps2_mouse", i8042);
1133 qdev_init_nofail(&vmmouse->qdev);
1135 port92 = isa_create_simple(isa_bus, "port92");
1136 port92_init(port92, &a20_line[1]);
1138 cpu_exit_irq = qemu_allocate_irqs(cpu_request_exit, NULL, 1);
1139 DMA_init(0, cpu_exit_irq);
1141 for(i = 0; i < MAX_FD; i++) {
1142 fd[i] = drive_get(IF_FLOPPY, 0, i);
1144 *floppy = fdctrl_init_isa(isa_bus, fd);
1147 void pc_pci_device_init(PCIBus *pci_bus)
1152 max_bus = drive_get_max_bus(IF_SCSI);
1153 for (bus = 0; bus <= max_bus; bus++) {
1154 pci_create_simple(pci_bus, -1, "lsi53c895a");