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 "audio/audio.h"
35 /* output Bochs bios info messages */
38 #define BIOS_FILENAME "bios.bin"
39 #define VGABIOS_FILENAME "vgabios.bin"
40 #define VGABIOS_CIRRUS_FILENAME "vgabios-cirrus.bin"
42 #define PC_MAX_BIOS_SIZE (4 * 1024 * 1024)
44 /* Leave a chunk of memory at the top of RAM for the BIOS ACPI tables. */
45 #define ACPI_DATA_SIZE 0x10000
49 static fdctrl_t *floppy_controller;
50 static RTCState *rtc_state;
52 static IOAPICState *ioapic;
53 static PCIDevice *i440fx_state;
55 static void ioport80_write(void *opaque, uint32_t addr, uint32_t data)
59 /* MSDOS compatibility mode FPU exception support */
60 static qemu_irq ferr_irq;
61 /* XXX: add IGNNE support */
62 void cpu_set_ferr(CPUX86State *s)
64 qemu_irq_raise(ferr_irq);
67 static void ioportF0_write(void *opaque, uint32_t addr, uint32_t data)
69 qemu_irq_lower(ferr_irq);
73 uint64_t cpu_get_tsc(CPUX86State *env)
75 /* Note: when using kqemu, it is more logical to return the host TSC
76 because kqemu does not trap the RDTSC instruction for
77 performance reasons */
79 if (env->kqemu_enabled) {
80 return cpu_get_real_ticks();
84 return cpu_get_ticks();
89 void cpu_smm_update(CPUState *env)
91 if (i440fx_state && env == first_cpu)
92 i440fx_set_smm(i440fx_state, (env->hflags >> HF_SMM_SHIFT) & 1);
97 int cpu_get_pic_interrupt(CPUState *env)
101 intno = apic_get_interrupt(env);
103 /* set irq request if a PIC irq is still pending */
104 /* XXX: improve that */
105 pic_update_irq(isa_pic);
108 /* read the irq from the PIC */
109 if (!apic_accept_pic_intr(env))
112 intno = pic_read_irq(isa_pic);
116 static void pic_irq_request(void *opaque, int irq, int level)
118 CPUState *env = first_cpu;
124 if (apic_accept_pic_intr(env))
125 apic_local_deliver(env, APIC_LINT0);
130 /* PC cmos mappings */
132 #define REG_EQUIPMENT_BYTE 0x14
134 static int cmos_get_fd_drive_type(int fd0)
140 /* 1.44 Mb 3"5 drive */
144 /* 2.88 Mb 3"5 drive */
148 /* 1.2 Mb 5"5 drive */
158 static void cmos_init_hd(int type_ofs, int info_ofs, BlockDriverState *hd)
160 RTCState *s = rtc_state;
161 int cylinders, heads, sectors;
162 bdrv_get_geometry_hint(hd, &cylinders, &heads, §ors);
163 rtc_set_memory(s, type_ofs, 47);
164 rtc_set_memory(s, info_ofs, cylinders);
165 rtc_set_memory(s, info_ofs + 1, cylinders >> 8);
166 rtc_set_memory(s, info_ofs + 2, heads);
167 rtc_set_memory(s, info_ofs + 3, 0xff);
168 rtc_set_memory(s, info_ofs + 4, 0xff);
169 rtc_set_memory(s, info_ofs + 5, 0xc0 | ((heads > 8) << 3));
170 rtc_set_memory(s, info_ofs + 6, cylinders);
171 rtc_set_memory(s, info_ofs + 7, cylinders >> 8);
172 rtc_set_memory(s, info_ofs + 8, sectors);
175 /* convert boot_device letter to something recognizable by the bios */
176 static int boot_device2nibble(char boot_device)
178 switch(boot_device) {
181 return 0x01; /* floppy boot */
183 return 0x02; /* hard drive boot */
185 return 0x03; /* CD-ROM boot */
187 return 0x04; /* Network boot */
192 /* copy/pasted from cmos_init, should be made a general function
193 and used there as well */
194 int pc_boot_set(const char *boot_device)
196 #define PC_MAX_BOOT_DEVICES 3
197 RTCState *s = rtc_state;
198 int nbds, bds[3] = { 0, };
201 nbds = strlen(boot_device);
202 if (nbds > PC_MAX_BOOT_DEVICES) {
203 term_printf("Too many boot devices for PC\n");
206 for (i = 0; i < nbds; i++) {
207 bds[i] = boot_device2nibble(boot_device[i]);
209 term_printf("Invalid boot device for PC: '%c'\n",
214 rtc_set_memory(s, 0x3d, (bds[1] << 4) | bds[0]);
215 rtc_set_memory(s, 0x38, (bds[2] << 4));
219 /* hd_table must contain 4 block drivers */
220 static void cmos_init(ram_addr_t ram_size, ram_addr_t above_4g_mem_size,
221 const char *boot_device, BlockDriverState **hd_table)
223 RTCState *s = rtc_state;
224 int nbds, bds[3] = { 0, };
229 /* various important CMOS locations needed by PC/Bochs bios */
232 val = 640; /* base memory in K */
233 rtc_set_memory(s, 0x15, val);
234 rtc_set_memory(s, 0x16, val >> 8);
236 val = (ram_size / 1024) - 1024;
239 rtc_set_memory(s, 0x17, val);
240 rtc_set_memory(s, 0x18, val >> 8);
241 rtc_set_memory(s, 0x30, val);
242 rtc_set_memory(s, 0x31, val >> 8);
244 if (above_4g_mem_size) {
245 rtc_set_memory(s, 0x5b, (unsigned int)above_4g_mem_size >> 16);
246 rtc_set_memory(s, 0x5c, (unsigned int)above_4g_mem_size >> 24);
247 rtc_set_memory(s, 0x5d, (uint64_t)above_4g_mem_size >> 32);
250 if (ram_size > (16 * 1024 * 1024))
251 val = (ram_size / 65536) - ((16 * 1024 * 1024) / 65536);
256 rtc_set_memory(s, 0x34, val);
257 rtc_set_memory(s, 0x35, val >> 8);
259 /* set the number of CPU */
260 rtc_set_memory(s, 0x5f, smp_cpus - 1);
262 /* set boot devices, and disable floppy signature check if requested */
263 #define PC_MAX_BOOT_DEVICES 3
264 nbds = strlen(boot_device);
265 if (nbds > PC_MAX_BOOT_DEVICES) {
266 fprintf(stderr, "Too many boot devices for PC\n");
269 for (i = 0; i < nbds; i++) {
270 bds[i] = boot_device2nibble(boot_device[i]);
272 fprintf(stderr, "Invalid boot device for PC: '%c'\n",
277 rtc_set_memory(s, 0x3d, (bds[1] << 4) | bds[0]);
278 rtc_set_memory(s, 0x38, (bds[2] << 4) | (fd_bootchk ? 0x0 : 0x1));
282 fd0 = fdctrl_get_drive_type(floppy_controller, 0);
283 fd1 = fdctrl_get_drive_type(floppy_controller, 1);
285 val = (cmos_get_fd_drive_type(fd0) << 4) | cmos_get_fd_drive_type(fd1);
286 rtc_set_memory(s, 0x10, val);
298 val |= 0x01; /* 1 drive, ready for boot */
301 val |= 0x41; /* 2 drives, ready for boot */
304 val |= 0x02; /* FPU is there */
305 val |= 0x04; /* PS/2 mouse installed */
306 rtc_set_memory(s, REG_EQUIPMENT_BYTE, val);
310 rtc_set_memory(s, 0x12, (hd_table[0] ? 0xf0 : 0) | (hd_table[1] ? 0x0f : 0));
312 cmos_init_hd(0x19, 0x1b, hd_table[0]);
314 cmos_init_hd(0x1a, 0x24, hd_table[1]);
317 for (i = 0; i < 4; i++) {
319 int cylinders, heads, sectors, translation;
320 /* NOTE: bdrv_get_geometry_hint() returns the physical
321 geometry. It is always such that: 1 <= sects <= 63, 1
322 <= heads <= 16, 1 <= cylinders <= 16383. The BIOS
323 geometry can be different if a translation is done. */
324 translation = bdrv_get_translation_hint(hd_table[i]);
325 if (translation == BIOS_ATA_TRANSLATION_AUTO) {
326 bdrv_get_geometry_hint(hd_table[i], &cylinders, &heads, §ors);
327 if (cylinders <= 1024 && heads <= 16 && sectors <= 63) {
328 /* No translation. */
331 /* LBA translation. */
337 val |= translation << (i * 2);
340 rtc_set_memory(s, 0x39, val);
343 void ioport_set_a20(int enable)
345 /* XXX: send to all CPUs ? */
346 cpu_x86_set_a20(first_cpu, enable);
349 int ioport_get_a20(void)
351 return ((first_cpu->a20_mask >> 20) & 1);
354 static void ioport92_write(void *opaque, uint32_t addr, uint32_t val)
356 ioport_set_a20((val >> 1) & 1);
357 /* XXX: bit 0 is fast reset */
360 static uint32_t ioport92_read(void *opaque, uint32_t addr)
362 return ioport_get_a20() << 1;
365 /***********************************************************/
366 /* Bochs BIOS debug ports */
368 static void bochs_bios_write(void *opaque, uint32_t addr, uint32_t val)
370 static const char shutdown_str[8] = "Shutdown";
371 static int shutdown_index = 0;
374 /* Bochs BIOS messages */
377 fprintf(stderr, "BIOS panic at rombios.c, line %d\n", val);
382 fprintf(stderr, "%c", val);
386 /* same as Bochs power off */
387 if (val == shutdown_str[shutdown_index]) {
389 if (shutdown_index == 8) {
391 qemu_system_shutdown_request();
398 /* LGPL'ed VGA BIOS messages */
401 fprintf(stderr, "VGA BIOS panic, line %d\n", val);
406 fprintf(stderr, "%c", val);
412 static void bochs_bios_init(void)
414 register_ioport_write(0x400, 1, 2, bochs_bios_write, NULL);
415 register_ioport_write(0x401, 1, 2, bochs_bios_write, NULL);
416 register_ioport_write(0x402, 1, 1, bochs_bios_write, NULL);
417 register_ioport_write(0x403, 1, 1, bochs_bios_write, NULL);
418 register_ioport_write(0x8900, 1, 1, bochs_bios_write, NULL);
420 register_ioport_write(0x501, 1, 2, bochs_bios_write, NULL);
421 register_ioport_write(0x502, 1, 2, bochs_bios_write, NULL);
422 register_ioport_write(0x500, 1, 1, bochs_bios_write, NULL);
423 register_ioport_write(0x503, 1, 1, bochs_bios_write, NULL);
426 /* Generate an initial boot sector which sets state and jump to
427 a specified vector */
428 static void generate_bootsect(uint32_t gpr[8], uint16_t segs[6], uint16_t ip)
430 uint8_t bootsect[512], *p;
434 hda = drive_get_index(IF_IDE, 0, 0);
436 fprintf(stderr, "A disk image must be given for 'hda' when booting "
441 memset(bootsect, 0, sizeof(bootsect));
443 /* Copy the MSDOS partition table if possible */
444 bdrv_read(drives_table[hda].bdrv, 0, bootsect, 1);
446 /* Make sure we have a partition signature */
447 bootsect[510] = 0x55;
448 bootsect[511] = 0xaa;
452 *p++ = 0xfa; /* CLI */
453 *p++ = 0xfc; /* CLD */
455 for (i = 0; i < 6; i++) {
456 if (i == 1) /* Skip CS */
459 *p++ = 0xb8; /* MOV AX,imm16 */
462 *p++ = 0x8e; /* MOV <seg>,AX */
463 *p++ = 0xc0 + (i << 3);
466 for (i = 0; i < 8; i++) {
467 *p++ = 0x66; /* 32-bit operand size */
468 *p++ = 0xb8 + i; /* MOV <reg>,imm32 */
475 *p++ = 0xea; /* JMP FAR */
478 *p++ = segs[1]; /* CS */
481 bdrv_set_boot_sector(drives_table[hda].bdrv, bootsect, sizeof(bootsect));
484 static long get_file_size(FILE *f)
488 /* XXX: on Unix systems, using fstat() probably makes more sense */
491 fseek(f, 0, SEEK_END);
493 fseek(f, where, SEEK_SET);
498 static void load_linux(const char *kernel_filename,
499 const char *initrd_filename,
500 const char *kernel_cmdline)
506 int setup_size, kernel_size, initrd_size, cmdline_size;
508 uint8_t header[1024];
509 uint8_t *real_addr, *prot_addr, *cmdline_addr, *initrd_addr;
512 /* Align to 16 bytes as a paranoia measure */
513 cmdline_size = (strlen(kernel_cmdline)+16) & ~15;
515 /* load the kernel header */
516 f = fopen(kernel_filename, "rb");
517 if (!f || !(kernel_size = get_file_size(f)) ||
518 fread(header, 1, 1024, f) != 1024) {
519 fprintf(stderr, "qemu: could not load kernel '%s'\n",
524 /* kernel protocol version */
526 fprintf(stderr, "header magic: %#x\n", ldl_p(header+0x202));
528 if (ldl_p(header+0x202) == 0x53726448)
529 protocol = lduw_p(header+0x206);
533 if (protocol < 0x200 || !(header[0x211] & 0x01)) {
535 real_addr = phys_ram_base + 0x90000;
536 cmdline_addr = phys_ram_base + 0x9a000 - cmdline_size;
537 prot_addr = phys_ram_base + 0x10000;
538 } else if (protocol < 0x202) {
539 /* High but ancient kernel */
540 real_addr = phys_ram_base + 0x90000;
541 cmdline_addr = phys_ram_base + 0x9a000 - cmdline_size;
542 prot_addr = phys_ram_base + 0x100000;
544 /* High and recent kernel */
545 real_addr = phys_ram_base + 0x10000;
546 cmdline_addr = phys_ram_base + 0x20000;
547 prot_addr = phys_ram_base + 0x100000;
552 "qemu: real_addr = %#zx\n"
553 "qemu: cmdline_addr = %#zx\n"
554 "qemu: prot_addr = %#zx\n",
555 real_addr-phys_ram_base,
556 cmdline_addr-phys_ram_base,
557 prot_addr-phys_ram_base);
560 /* highest address for loading the initrd */
561 if (protocol >= 0x203)
562 initrd_max = ldl_p(header+0x22c);
564 initrd_max = 0x37ffffff;
566 if (initrd_max >= ram_size-ACPI_DATA_SIZE)
567 initrd_max = ram_size-ACPI_DATA_SIZE-1;
569 /* kernel command line */
570 pstrcpy((char*)cmdline_addr, 4096, kernel_cmdline);
572 if (protocol >= 0x202) {
573 stl_p(header+0x228, cmdline_addr-phys_ram_base);
575 stw_p(header+0x20, 0xA33F);
576 stw_p(header+0x22, cmdline_addr-real_addr);
580 /* High nybble = B reserved for Qemu; low nybble is revision number.
581 If this code is substantially changed, you may want to consider
582 incrementing the revision. */
583 if (protocol >= 0x200)
584 header[0x210] = 0xB0;
587 if (protocol >= 0x201) {
588 header[0x211] |= 0x80; /* CAN_USE_HEAP */
589 stw_p(header+0x224, cmdline_addr-real_addr-0x200);
593 if (initrd_filename) {
594 if (protocol < 0x200) {
595 fprintf(stderr, "qemu: linux kernel too old to load a ram disk\n");
599 fi = fopen(initrd_filename, "rb");
601 fprintf(stderr, "qemu: could not load initial ram disk '%s'\n",
606 initrd_size = get_file_size(fi);
607 initrd_addr = phys_ram_base + ((initrd_max-initrd_size) & ~4095);
609 fprintf(stderr, "qemu: loading initrd (%#x bytes) at %#zx\n",
610 initrd_size, initrd_addr-phys_ram_base);
612 if (fread(initrd_addr, 1, initrd_size, fi) != initrd_size) {
613 fprintf(stderr, "qemu: read error on initial ram disk '%s'\n",
619 stl_p(header+0x218, initrd_addr-phys_ram_base);
620 stl_p(header+0x21c, initrd_size);
623 /* store the finalized header and load the rest of the kernel */
624 memcpy(real_addr, header, 1024);
626 setup_size = header[0x1f1];
630 setup_size = (setup_size+1)*512;
631 kernel_size -= setup_size; /* Size of protected-mode code */
633 if (fread(real_addr+1024, 1, setup_size-1024, f) != setup_size-1024 ||
634 fread(prot_addr, 1, kernel_size, f) != kernel_size) {
635 fprintf(stderr, "qemu: read error on kernel '%s'\n",
641 /* generate bootsector to set up the initial register state */
642 real_seg = (real_addr-phys_ram_base) >> 4;
643 seg[0] = seg[2] = seg[3] = seg[4] = seg[4] = real_seg;
644 seg[1] = real_seg+0x20; /* CS */
645 memset(gpr, 0, sizeof gpr);
646 gpr[4] = cmdline_addr-real_addr-16; /* SP (-16 is paranoia) */
648 generate_bootsect(gpr, seg, 0);
651 static void main_cpu_reset(void *opaque)
653 CPUState *env = opaque;
657 static const int ide_iobase[2] = { 0x1f0, 0x170 };
658 static const int ide_iobase2[2] = { 0x3f6, 0x376 };
659 static const int ide_irq[2] = { 14, 15 };
661 #define NE2000_NB_MAX 6
663 static int ne2000_io[NE2000_NB_MAX] = { 0x300, 0x320, 0x340, 0x360, 0x280, 0x380 };
664 static int ne2000_irq[NE2000_NB_MAX] = { 9, 10, 11, 3, 4, 5 };
666 static int serial_io[MAX_SERIAL_PORTS] = { 0x3f8, 0x2f8, 0x3e8, 0x2e8 };
667 static int serial_irq[MAX_SERIAL_PORTS] = { 4, 3, 4, 3 };
669 static int parallel_io[MAX_PARALLEL_PORTS] = { 0x378, 0x278, 0x3bc };
670 static int parallel_irq[MAX_PARALLEL_PORTS] = { 7, 7, 7 };
673 static void audio_init (PCIBus *pci_bus, qemu_irq *pic)
676 int audio_enabled = 0;
678 for (c = soundhw; !audio_enabled && c->name; ++c) {
679 audio_enabled = c->enabled;
687 for (c = soundhw; c->name; ++c) {
690 c->init.init_isa (s, pic);
694 c->init.init_pci (pci_bus, s);
704 static void pc_init_ne2k_isa(NICInfo *nd, qemu_irq *pic)
706 static int nb_ne2k = 0;
708 if (nb_ne2k == NE2000_NB_MAX)
710 isa_ne2000_init(ne2000_io[nb_ne2k], pic[ne2000_irq[nb_ne2k]], nd);
714 /* PC hardware initialisation */
715 static void pc_init1(ram_addr_t ram_size, int vga_ram_size,
716 const char *boot_device, DisplayState *ds,
717 const char *kernel_filename, const char *kernel_cmdline,
718 const char *initrd_filename,
719 int pci_enabled, const char *cpu_model)
722 int ret, linux_boot, i;
723 ram_addr_t ram_addr, vga_ram_addr, bios_offset, vga_bios_offset;
724 ram_addr_t below_4g_mem_size, above_4g_mem_size = 0;
725 int bios_size, isa_bios_size, vga_bios_size;
727 int piix3_devfn = -1;
733 BlockDriverState *hd[MAX_IDE_BUS * MAX_IDE_DEVS];
734 BlockDriverState *fd[MAX_FD];
736 if (ram_size >= 0xe0000000 ) {
737 above_4g_mem_size = ram_size - 0xe0000000;
738 below_4g_mem_size = 0xe0000000;
740 below_4g_mem_size = ram_size;
743 qemu_register_boot_set(pc_boot_set);
745 linux_boot = (kernel_filename != NULL);
748 if (cpu_model == NULL) {
750 cpu_model = "qemu64";
752 cpu_model = "qemu32";
756 for(i = 0; i < smp_cpus; i++) {
757 env = cpu_init(cpu_model);
759 fprintf(stderr, "Unable to find x86 CPU definition\n");
763 env->hflags |= HF_HALTED_MASK;
765 /* XXX: enable it in all cases */
766 env->cpuid_features |= CPUID_APIC;
768 register_savevm("cpu", i, 4, cpu_save, cpu_load, env);
769 qemu_register_reset(main_cpu_reset, env);
778 ram_addr = qemu_ram_alloc(ram_size);
779 cpu_register_physical_memory(0, below_4g_mem_size, ram_addr);
781 /* above 4giga memory allocation */
782 if (above_4g_mem_size > 0) {
783 cpu_register_physical_memory(0x100000000ULL, above_4g_mem_size,
784 ram_addr + below_4g_mem_size);
787 /* allocate VGA RAM */
788 vga_ram_addr = qemu_ram_alloc(vga_ram_size);
791 if (bios_name == NULL)
792 bios_name = BIOS_FILENAME;
793 snprintf(buf, sizeof(buf), "%s/%s", bios_dir, bios_name);
794 bios_size = get_image_size(buf);
795 if (bios_size <= 0 ||
796 (bios_size % 65536) != 0) {
799 bios_offset = qemu_ram_alloc(bios_size);
800 ret = load_image(buf, phys_ram_base + bios_offset);
801 if (ret != bios_size) {
803 fprintf(stderr, "qemu: could not load PC BIOS '%s'\n", buf);
808 if (cirrus_vga_enabled) {
809 snprintf(buf, sizeof(buf), "%s/%s", bios_dir, VGABIOS_CIRRUS_FILENAME);
811 snprintf(buf, sizeof(buf), "%s/%s", bios_dir, VGABIOS_FILENAME);
813 vga_bios_size = get_image_size(buf);
814 if (vga_bios_size <= 0 || vga_bios_size > 65536)
816 vga_bios_offset = qemu_ram_alloc(65536);
818 ret = load_image(buf, phys_ram_base + vga_bios_offset);
819 if (ret != vga_bios_size) {
821 fprintf(stderr, "qemu: could not load VGA BIOS '%s'\n", buf);
825 /* setup basic memory access */
826 cpu_register_physical_memory(0xc0000, 0x10000,
827 vga_bios_offset | IO_MEM_ROM);
829 /* map the last 128KB of the BIOS in ISA space */
830 isa_bios_size = bios_size;
831 if (isa_bios_size > (128 * 1024))
832 isa_bios_size = 128 * 1024;
833 cpu_register_physical_memory(0xd0000, (192 * 1024) - isa_bios_size,
835 cpu_register_physical_memory(0x100000 - isa_bios_size,
837 (bios_offset + bios_size - isa_bios_size) | IO_MEM_ROM);
840 ram_addr_t option_rom_offset;
844 for (i = 0; i < nb_option_roms; i++) {
845 size = get_image_size(option_rom[i]);
847 fprintf(stderr, "Could not load option rom '%s'\n",
851 if (size > (0x10000 - offset))
852 goto option_rom_error;
853 option_rom_offset = qemu_ram_alloc(size);
854 ret = load_image(option_rom[i], phys_ram_base + option_rom_offset);
857 fprintf(stderr, "Too many option ROMS\n");
860 size = (size + 4095) & ~4095;
861 cpu_register_physical_memory(0xd0000 + offset,
862 size, option_rom_offset | IO_MEM_ROM);
867 /* map all the bios at the top of memory */
868 cpu_register_physical_memory((uint32_t)(-bios_size),
869 bios_size, bios_offset | IO_MEM_ROM);
874 load_linux(kernel_filename, initrd_filename, kernel_cmdline);
876 cpu_irq = qemu_allocate_irqs(pic_irq_request, NULL, 1);
877 i8259 = i8259_init(cpu_irq[0]);
878 ferr_irq = i8259[13];
881 pci_bus = i440fx_init(&i440fx_state, i8259);
882 piix3_devfn = piix3_init(pci_bus, -1);
887 /* init basic PC hardware */
888 register_ioport_write(0x80, 1, 1, ioport80_write, NULL);
890 register_ioport_write(0xf0, 1, 1, ioportF0_write, NULL);
892 if (cirrus_vga_enabled) {
894 pci_cirrus_vga_init(pci_bus,
895 ds, phys_ram_base + vga_ram_addr,
896 vga_ram_addr, vga_ram_size);
898 isa_cirrus_vga_init(ds, phys_ram_base + vga_ram_addr,
899 vga_ram_addr, vga_ram_size);
901 } else if (vmsvga_enabled) {
903 pci_vmsvga_init(pci_bus, ds, phys_ram_base + vga_ram_addr,
904 vga_ram_addr, vga_ram_size);
906 fprintf(stderr, "%s: vmware_vga: no PCI bus\n", __FUNCTION__);
909 pci_vga_init(pci_bus, ds, phys_ram_base + vga_ram_addr,
910 vga_ram_addr, vga_ram_size, 0, 0);
912 isa_vga_init(ds, phys_ram_base + vga_ram_addr,
913 vga_ram_addr, vga_ram_size);
917 rtc_state = rtc_init(0x70, i8259[8]);
919 register_ioport_read(0x92, 1, 1, ioport92_read, NULL);
920 register_ioport_write(0x92, 1, 1, ioport92_write, NULL);
923 ioapic = ioapic_init();
925 pit = pit_init(0x40, i8259[0]);
928 pic_set_alt_irq_func(isa_pic, ioapic_set_irq, ioapic);
931 for(i = 0; i < MAX_SERIAL_PORTS; i++) {
933 serial_init(serial_io[i], i8259[serial_irq[i]], serial_hds[i]);
937 for(i = 0; i < MAX_PARALLEL_PORTS; i++) {
938 if (parallel_hds[i]) {
939 parallel_init(parallel_io[i], i8259[parallel_irq[i]],
944 for(i = 0; i < nb_nics; i++) {
948 nd->model = "ne2k_pci";
950 nd->model = "ne2k_isa";
953 if (strcmp(nd->model, "ne2k_isa") == 0) {
954 pc_init_ne2k_isa(nd, i8259);
955 } else if (pci_enabled) {
956 if (strcmp(nd->model, "?") == 0)
957 fprintf(stderr, "qemu: Supported ISA NICs: ne2k_isa\n");
958 pci_nic_init(pci_bus, nd, -1);
959 } else if (strcmp(nd->model, "?") == 0) {
960 fprintf(stderr, "qemu: Supported ISA NICs: ne2k_isa\n");
963 fprintf(stderr, "qemu: Unsupported NIC: %s\n", nd->model);
968 if (drive_get_max_bus(IF_IDE) >= MAX_IDE_BUS) {
969 fprintf(stderr, "qemu: too many IDE bus\n");
973 for(i = 0; i < MAX_IDE_BUS * MAX_IDE_DEVS; i++) {
974 index = drive_get_index(IF_IDE, i / MAX_IDE_DEVS, i % MAX_IDE_DEVS);
976 hd[i] = drives_table[index].bdrv;
982 pci_piix3_ide_init(pci_bus, hd, piix3_devfn + 1, i8259);
984 for(i = 0; i < MAX_IDE_BUS; i++) {
985 isa_ide_init(ide_iobase[i], ide_iobase2[i], i8259[ide_irq[i]],
986 hd[MAX_IDE_DEVS * i], hd[MAX_IDE_DEVS * i + 1]);
990 i8042_init(i8259[1], i8259[12], 0x60);
993 audio_init(pci_enabled ? pci_bus : NULL, i8259);
996 for(i = 0; i < MAX_FD; i++) {
997 index = drive_get_index(IF_FLOPPY, 0, i);
999 fd[i] = drives_table[index].bdrv;
1003 floppy_controller = fdctrl_init(i8259[6], 2, 0, 0x3f0, fd);
1005 cmos_init(below_4g_mem_size, above_4g_mem_size, boot_device, hd);
1007 if (pci_enabled && usb_enabled) {
1008 usb_uhci_piix3_init(pci_bus, piix3_devfn + 2);
1011 if (pci_enabled && acpi_enabled) {
1012 uint8_t *eeprom_buf = qemu_mallocz(8 * 256); /* XXX: make this persistent */
1015 /* TODO: Populate SPD eeprom data. */
1016 smbus = piix4_pm_init(pci_bus, piix3_devfn + 3, 0xb100, i8259[9]);
1017 for (i = 0; i < 8; i++) {
1018 smbus_eeprom_device_init(smbus, 0x50 + i, eeprom_buf + (i * 256));
1023 i440fx_init_memory_mappings(i440fx_state);
1031 max_bus = drive_get_max_bus(IF_SCSI);
1033 for (bus = 0; bus <= max_bus; bus++) {
1034 scsi = lsi_scsi_init(pci_bus, -1);
1035 for (unit = 0; unit < LSI_MAX_DEVS; unit++) {
1036 index = drive_get_index(IF_SCSI, bus, unit);
1039 lsi_scsi_attach(scsi, drives_table[index].bdrv, unit);
1045 static void pc_init_pci(ram_addr_t ram_size, int vga_ram_size,
1046 const char *boot_device, DisplayState *ds,
1047 const char *kernel_filename,
1048 const char *kernel_cmdline,
1049 const char *initrd_filename,
1050 const char *cpu_model)
1052 pc_init1(ram_size, vga_ram_size, boot_device, ds,
1053 kernel_filename, kernel_cmdline,
1054 initrd_filename, 1, cpu_model);
1057 static void pc_init_isa(ram_addr_t ram_size, int vga_ram_size,
1058 const char *boot_device, DisplayState *ds,
1059 const char *kernel_filename,
1060 const char *kernel_cmdline,
1061 const char *initrd_filename,
1062 const char *cpu_model)
1064 pc_init1(ram_size, vga_ram_size, boot_device, ds,
1065 kernel_filename, kernel_cmdline,
1066 initrd_filename, 0, cpu_model);
1069 QEMUMachine pc_machine = {
1073 VGA_RAM_SIZE + PC_MAX_BIOS_SIZE,
1076 QEMUMachine isapc_machine = {
1080 VGA_RAM_SIZE + PC_MAX_BIOS_SIZE,