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
29 #include "vmware_vga.h"
36 #include "audio/audio.h"
42 #include "hpet_emul.h"
48 #include "multiboot.h"
50 /* output Bochs bios info messages */
53 #define BIOS_FILENAME "bios.bin"
55 #define PC_MAX_BIOS_SIZE (4 * 1024 * 1024)
57 /* Leave a chunk of memory at the top of RAM for the BIOS ACPI tables. */
58 #define ACPI_DATA_SIZE 0x10000
59 #define BIOS_CFG_IOPORT 0x510
60 #define FW_CFG_ACPI_TABLES (FW_CFG_ARCH_LOCAL + 0)
61 #define FW_CFG_SMBIOS_ENTRIES (FW_CFG_ARCH_LOCAL + 1)
62 #define FW_CFG_IRQ0_OVERRIDE (FW_CFG_ARCH_LOCAL + 2)
63 #define FW_CFG_E820_TABLE (FW_CFG_ARCH_LOCAL + 3)
67 static FDCtrl *floppy_controller;
68 static RTCState *rtc_state;
70 static PCII440FXState *i440fx_state;
72 #define E820_NR_ENTRIES 16
82 struct e820_entry entry[E820_NR_ENTRIES];
85 static struct e820_table e820_table;
87 typedef struct isa_irq_state {
92 static void isa_irq_handler(void *opaque, int n, int level)
94 IsaIrqState *isa = (IsaIrqState *)opaque;
97 qemu_set_irq(isa->i8259[n], level);
100 qemu_set_irq(isa->ioapic[n], level);
103 static void ioport80_write(void *opaque, uint32_t addr, uint32_t data)
107 /* MSDOS compatibility mode FPU exception support */
108 static qemu_irq ferr_irq;
109 /* XXX: add IGNNE support */
110 void cpu_set_ferr(CPUX86State *s)
112 qemu_irq_raise(ferr_irq);
115 static void ioportF0_write(void *opaque, uint32_t addr, uint32_t data)
117 qemu_irq_lower(ferr_irq);
121 uint64_t cpu_get_tsc(CPUX86State *env)
123 return cpu_get_ticks();
127 void cpu_smm_update(CPUState *env)
129 if (i440fx_state && env == first_cpu)
130 i440fx_set_smm(i440fx_state, (env->hflags >> HF_SMM_SHIFT) & 1);
135 int cpu_get_pic_interrupt(CPUState *env)
139 intno = apic_get_interrupt(env);
141 /* set irq request if a PIC irq is still pending */
142 /* XXX: improve that */
143 pic_update_irq(isa_pic);
146 /* read the irq from the PIC */
147 if (!apic_accept_pic_intr(env))
150 intno = pic_read_irq(isa_pic);
154 static void pic_irq_request(void *opaque, int irq, int level)
156 CPUState *env = first_cpu;
158 if (env->apic_state) {
160 if (apic_accept_pic_intr(env))
161 apic_deliver_pic_intr(env, level);
166 cpu_interrupt(env, CPU_INTERRUPT_HARD);
168 cpu_reset_interrupt(env, CPU_INTERRUPT_HARD);
172 /* PC cmos mappings */
174 #define REG_EQUIPMENT_BYTE 0x14
176 static int cmos_get_fd_drive_type(int fd0)
182 /* 1.44 Mb 3"5 drive */
186 /* 2.88 Mb 3"5 drive */
190 /* 1.2 Mb 5"5 drive */
200 static void cmos_init_hd(int type_ofs, int info_ofs, BlockDriverState *hd)
202 RTCState *s = rtc_state;
203 int cylinders, heads, sectors;
204 bdrv_get_geometry_hint(hd, &cylinders, &heads, §ors);
205 rtc_set_memory(s, type_ofs, 47);
206 rtc_set_memory(s, info_ofs, cylinders);
207 rtc_set_memory(s, info_ofs + 1, cylinders >> 8);
208 rtc_set_memory(s, info_ofs + 2, heads);
209 rtc_set_memory(s, info_ofs + 3, 0xff);
210 rtc_set_memory(s, info_ofs + 4, 0xff);
211 rtc_set_memory(s, info_ofs + 5, 0xc0 | ((heads > 8) << 3));
212 rtc_set_memory(s, info_ofs + 6, cylinders);
213 rtc_set_memory(s, info_ofs + 7, cylinders >> 8);
214 rtc_set_memory(s, info_ofs + 8, sectors);
217 /* convert boot_device letter to something recognizable by the bios */
218 static int boot_device2nibble(char boot_device)
220 switch(boot_device) {
223 return 0x01; /* floppy boot */
225 return 0x02; /* hard drive boot */
227 return 0x03; /* CD-ROM boot */
229 return 0x04; /* Network boot */
234 static int set_boot_dev(RTCState *s, const char *boot_device, int fd_bootchk)
236 #define PC_MAX_BOOT_DEVICES 3
237 int nbds, bds[3] = { 0, };
240 nbds = strlen(boot_device);
241 if (nbds > PC_MAX_BOOT_DEVICES) {
242 error_report("Too many boot devices for PC");
245 for (i = 0; i < nbds; i++) {
246 bds[i] = boot_device2nibble(boot_device[i]);
248 error_report("Invalid boot device for PC: '%c'",
253 rtc_set_memory(s, 0x3d, (bds[1] << 4) | bds[0]);
254 rtc_set_memory(s, 0x38, (bds[2] << 4) | (fd_bootchk ? 0x0 : 0x1));
258 static int pc_boot_set(void *opaque, const char *boot_device)
260 return set_boot_dev(opaque, boot_device, 0);
263 /* hd_table must contain 4 block drivers */
264 static void cmos_init(ram_addr_t ram_size, ram_addr_t above_4g_mem_size,
265 const char *boot_device, DriveInfo **hd_table)
267 RTCState *s = rtc_state;
272 /* various important CMOS locations needed by PC/Bochs bios */
275 val = 640; /* base memory in K */
276 rtc_set_memory(s, 0x15, val);
277 rtc_set_memory(s, 0x16, val >> 8);
279 val = (ram_size / 1024) - 1024;
282 rtc_set_memory(s, 0x17, val);
283 rtc_set_memory(s, 0x18, val >> 8);
284 rtc_set_memory(s, 0x30, val);
285 rtc_set_memory(s, 0x31, val >> 8);
287 if (above_4g_mem_size) {
288 rtc_set_memory(s, 0x5b, (unsigned int)above_4g_mem_size >> 16);
289 rtc_set_memory(s, 0x5c, (unsigned int)above_4g_mem_size >> 24);
290 rtc_set_memory(s, 0x5d, (uint64_t)above_4g_mem_size >> 32);
293 if (ram_size > (16 * 1024 * 1024))
294 val = (ram_size / 65536) - ((16 * 1024 * 1024) / 65536);
299 rtc_set_memory(s, 0x34, val);
300 rtc_set_memory(s, 0x35, val >> 8);
302 /* set the number of CPU */
303 rtc_set_memory(s, 0x5f, smp_cpus - 1);
305 /* set boot devices, and disable floppy signature check if requested */
306 if (set_boot_dev(s, boot_device, fd_bootchk)) {
312 fd0 = fdctrl_get_drive_type(floppy_controller, 0);
313 fd1 = fdctrl_get_drive_type(floppy_controller, 1);
315 val = (cmos_get_fd_drive_type(fd0) << 4) | cmos_get_fd_drive_type(fd1);
316 rtc_set_memory(s, 0x10, val);
328 val |= 0x01; /* 1 drive, ready for boot */
331 val |= 0x41; /* 2 drives, ready for boot */
334 val |= 0x02; /* FPU is there */
335 val |= 0x04; /* PS/2 mouse installed */
336 rtc_set_memory(s, REG_EQUIPMENT_BYTE, val);
340 rtc_set_memory(s, 0x12, (hd_table[0] ? 0xf0 : 0) | (hd_table[1] ? 0x0f : 0));
342 cmos_init_hd(0x19, 0x1b, hd_table[0]->bdrv);
344 cmos_init_hd(0x1a, 0x24, hd_table[1]->bdrv);
347 for (i = 0; i < 4; i++) {
349 int cylinders, heads, sectors, translation;
350 /* NOTE: bdrv_get_geometry_hint() returns the physical
351 geometry. It is always such that: 1 <= sects <= 63, 1
352 <= heads <= 16, 1 <= cylinders <= 16383. The BIOS
353 geometry can be different if a translation is done. */
354 translation = bdrv_get_translation_hint(hd_table[i]->bdrv);
355 if (translation == BIOS_ATA_TRANSLATION_AUTO) {
356 bdrv_get_geometry_hint(hd_table[i]->bdrv, &cylinders, &heads, §ors);
357 if (cylinders <= 1024 && heads <= 16 && sectors <= 63) {
358 /* No translation. */
361 /* LBA translation. */
367 val |= translation << (i * 2);
370 rtc_set_memory(s, 0x39, val);
373 void ioport_set_a20(int enable)
375 /* XXX: send to all CPUs ? */
376 cpu_x86_set_a20(first_cpu, enable);
379 int ioport_get_a20(void)
381 return ((first_cpu->a20_mask >> 20) & 1);
384 static void ioport92_write(void *opaque, uint32_t addr, uint32_t val)
386 ioport_set_a20((val >> 1) & 1);
387 /* XXX: bit 0 is fast reset */
390 static uint32_t ioport92_read(void *opaque, uint32_t addr)
392 return ioport_get_a20() << 1;
395 /***********************************************************/
396 /* Bochs BIOS debug ports */
398 static void bochs_bios_write(void *opaque, uint32_t addr, uint32_t val)
400 static const char shutdown_str[8] = "Shutdown";
401 static int shutdown_index = 0;
404 /* Bochs BIOS messages */
407 fprintf(stderr, "BIOS panic at rombios.c, line %d\n", val);
412 fprintf(stderr, "%c", val);
416 /* same as Bochs power off */
417 if (val == shutdown_str[shutdown_index]) {
419 if (shutdown_index == 8) {
421 qemu_system_shutdown_request();
428 /* LGPL'ed VGA BIOS messages */
431 fprintf(stderr, "VGA BIOS panic, line %d\n", val);
436 fprintf(stderr, "%c", val);
442 int e820_add_entry(uint64_t address, uint64_t length, uint32_t type)
444 int index = e820_table.count;
445 struct e820_entry *entry;
447 if (index >= E820_NR_ENTRIES)
449 entry = &e820_table.entry[index];
451 entry->address = address;
452 entry->length = length;
456 return e820_table.count;
459 static void *bochs_bios_init(void)
462 uint8_t *smbios_table;
464 uint64_t *numa_fw_cfg;
467 register_ioport_write(0x400, 1, 2, bochs_bios_write, NULL);
468 register_ioport_write(0x401, 1, 2, bochs_bios_write, NULL);
469 register_ioport_write(0x402, 1, 1, bochs_bios_write, NULL);
470 register_ioport_write(0x403, 1, 1, bochs_bios_write, NULL);
471 register_ioport_write(0x8900, 1, 1, bochs_bios_write, NULL);
473 register_ioport_write(0x501, 1, 2, bochs_bios_write, NULL);
474 register_ioport_write(0x502, 1, 2, bochs_bios_write, NULL);
475 register_ioport_write(0x500, 1, 1, bochs_bios_write, NULL);
476 register_ioport_write(0x503, 1, 1, bochs_bios_write, NULL);
478 fw_cfg = fw_cfg_init(BIOS_CFG_IOPORT, BIOS_CFG_IOPORT + 1, 0, 0);
480 fw_cfg_add_i32(fw_cfg, FW_CFG_ID, 1);
481 fw_cfg_add_i64(fw_cfg, FW_CFG_RAM_SIZE, (uint64_t)ram_size);
482 fw_cfg_add_bytes(fw_cfg, FW_CFG_ACPI_TABLES, (uint8_t *)acpi_tables,
484 fw_cfg_add_bytes(fw_cfg, FW_CFG_IRQ0_OVERRIDE, &irq0override, 1);
486 smbios_table = smbios_get_table(&smbios_len);
488 fw_cfg_add_bytes(fw_cfg, FW_CFG_SMBIOS_ENTRIES,
489 smbios_table, smbios_len);
490 fw_cfg_add_bytes(fw_cfg, FW_CFG_E820_TABLE, (uint8_t *)&e820_table,
491 sizeof(struct e820_table));
493 /* allocate memory for the NUMA channel: one (64bit) word for the number
494 * of nodes, one word for each VCPU->node and one word for each node to
495 * hold the amount of memory.
497 numa_fw_cfg = qemu_mallocz((1 + smp_cpus + nb_numa_nodes) * 8);
498 numa_fw_cfg[0] = cpu_to_le64(nb_numa_nodes);
499 for (i = 0; i < smp_cpus; i++) {
500 for (j = 0; j < nb_numa_nodes; j++) {
501 if (node_cpumask[j] & (1 << i)) {
502 numa_fw_cfg[i + 1] = cpu_to_le64(j);
507 for (i = 0; i < nb_numa_nodes; i++) {
508 numa_fw_cfg[smp_cpus + 1 + i] = cpu_to_le64(node_mem[i]);
510 fw_cfg_add_bytes(fw_cfg, FW_CFG_NUMA, (uint8_t *)numa_fw_cfg,
511 (1 + smp_cpus + nb_numa_nodes) * 8);
516 static long get_file_size(FILE *f)
520 /* XXX: on Unix systems, using fstat() probably makes more sense */
523 fseek(f, 0, SEEK_END);
525 fseek(f, where, SEEK_SET);
530 static void load_linux(void *fw_cfg,
531 const char *kernel_filename,
532 const char *initrd_filename,
533 const char *kernel_cmdline,
534 target_phys_addr_t max_ram_size)
537 int setup_size, kernel_size, initrd_size = 0, cmdline_size;
539 uint8_t header[8192], *setup, *kernel, *initrd_data;
540 target_phys_addr_t real_addr, prot_addr, cmdline_addr, initrd_addr = 0;
544 /* Align to 16 bytes as a paranoia measure */
545 cmdline_size = (strlen(kernel_cmdline)+16) & ~15;
547 /* load the kernel header */
548 f = fopen(kernel_filename, "rb");
549 if (!f || !(kernel_size = get_file_size(f)) ||
550 fread(header, 1, MIN(ARRAY_SIZE(header), kernel_size), f) !=
551 MIN(ARRAY_SIZE(header), kernel_size)) {
552 fprintf(stderr, "qemu: could not load kernel '%s': %s\n",
553 kernel_filename, strerror(errno));
557 /* kernel protocol version */
559 fprintf(stderr, "header magic: %#x\n", ldl_p(header+0x202));
561 if (ldl_p(header+0x202) == 0x53726448)
562 protocol = lduw_p(header+0x206);
564 /* This looks like a multiboot kernel. If it is, let's stop
565 treating it like a Linux kernel. */
566 if (load_multiboot(fw_cfg, f, kernel_filename, initrd_filename,
567 kernel_cmdline, kernel_size, header))
572 if (protocol < 0x200 || !(header[0x211] & 0x01)) {
575 cmdline_addr = 0x9a000 - cmdline_size;
577 } else if (protocol < 0x202) {
578 /* High but ancient kernel */
580 cmdline_addr = 0x9a000 - cmdline_size;
581 prot_addr = 0x100000;
583 /* High and recent kernel */
585 cmdline_addr = 0x20000;
586 prot_addr = 0x100000;
591 "qemu: real_addr = 0x" TARGET_FMT_plx "\n"
592 "qemu: cmdline_addr = 0x" TARGET_FMT_plx "\n"
593 "qemu: prot_addr = 0x" TARGET_FMT_plx "\n",
599 /* highest address for loading the initrd */
600 if (protocol >= 0x203)
601 initrd_max = ldl_p(header+0x22c);
603 initrd_max = 0x37ffffff;
605 if (initrd_max >= max_ram_size-ACPI_DATA_SIZE)
606 initrd_max = max_ram_size-ACPI_DATA_SIZE-1;
608 fw_cfg_add_i32(fw_cfg, FW_CFG_CMDLINE_ADDR, cmdline_addr);
609 fw_cfg_add_i32(fw_cfg, FW_CFG_CMDLINE_SIZE, strlen(kernel_cmdline)+1);
610 fw_cfg_add_bytes(fw_cfg, FW_CFG_CMDLINE_DATA,
611 (uint8_t*)strdup(kernel_cmdline),
612 strlen(kernel_cmdline)+1);
614 if (protocol >= 0x202) {
615 stl_p(header+0x228, cmdline_addr);
617 stw_p(header+0x20, 0xA33F);
618 stw_p(header+0x22, cmdline_addr-real_addr);
621 /* handle vga= parameter */
622 vmode = strstr(kernel_cmdline, "vga=");
624 unsigned int video_mode;
627 if (!strncmp(vmode, "normal", 6)) {
629 } else if (!strncmp(vmode, "ext", 3)) {
631 } else if (!strncmp(vmode, "ask", 3)) {
634 video_mode = strtol(vmode, NULL, 0);
636 stw_p(header+0x1fa, video_mode);
640 /* High nybble = B reserved for Qemu; low nybble is revision number.
641 If this code is substantially changed, you may want to consider
642 incrementing the revision. */
643 if (protocol >= 0x200)
644 header[0x210] = 0xB0;
647 if (protocol >= 0x201) {
648 header[0x211] |= 0x80; /* CAN_USE_HEAP */
649 stw_p(header+0x224, cmdline_addr-real_addr-0x200);
653 if (initrd_filename) {
654 if (protocol < 0x200) {
655 fprintf(stderr, "qemu: linux kernel too old to load a ram disk\n");
659 initrd_size = get_image_size(initrd_filename);
660 initrd_addr = (initrd_max-initrd_size) & ~4095;
662 initrd_data = qemu_malloc(initrd_size);
663 load_image(initrd_filename, initrd_data);
665 fw_cfg_add_i32(fw_cfg, FW_CFG_INITRD_ADDR, initrd_addr);
666 fw_cfg_add_i32(fw_cfg, FW_CFG_INITRD_SIZE, initrd_size);
667 fw_cfg_add_bytes(fw_cfg, FW_CFG_INITRD_DATA, initrd_data, initrd_size);
669 stl_p(header+0x218, initrd_addr);
670 stl_p(header+0x21c, initrd_size);
673 /* load kernel and setup */
674 setup_size = header[0x1f1];
677 setup_size = (setup_size+1)*512;
678 kernel_size -= setup_size;
680 setup = qemu_malloc(setup_size);
681 kernel = qemu_malloc(kernel_size);
682 fseek(f, 0, SEEK_SET);
683 if (fread(setup, 1, setup_size, f) != setup_size) {
684 fprintf(stderr, "fread() failed\n");
687 if (fread(kernel, 1, kernel_size, f) != kernel_size) {
688 fprintf(stderr, "fread() failed\n");
692 memcpy(setup, header, MIN(sizeof(header), setup_size));
694 fw_cfg_add_i32(fw_cfg, FW_CFG_KERNEL_ADDR, prot_addr);
695 fw_cfg_add_i32(fw_cfg, FW_CFG_KERNEL_SIZE, kernel_size);
696 fw_cfg_add_bytes(fw_cfg, FW_CFG_KERNEL_DATA, kernel, kernel_size);
698 fw_cfg_add_i32(fw_cfg, FW_CFG_SETUP_ADDR, real_addr);
699 fw_cfg_add_i32(fw_cfg, FW_CFG_SETUP_SIZE, setup_size);
700 fw_cfg_add_bytes(fw_cfg, FW_CFG_SETUP_DATA, setup, setup_size);
702 option_rom[nb_option_roms] = "linuxboot.bin";
706 static const int ide_iobase[2] = { 0x1f0, 0x170 };
707 static const int ide_iobase2[2] = { 0x3f6, 0x376 };
708 static const int ide_irq[2] = { 14, 15 };
710 #define NE2000_NB_MAX 6
712 static const int ne2000_io[NE2000_NB_MAX] = { 0x300, 0x320, 0x340, 0x360,
714 static const int ne2000_irq[NE2000_NB_MAX] = { 9, 10, 11, 3, 4, 5 };
716 static const int parallel_io[MAX_PARALLEL_PORTS] = { 0x378, 0x278, 0x3bc };
717 static const int parallel_irq[MAX_PARALLEL_PORTS] = { 7, 7, 7 };
720 static void audio_init (PCIBus *pci_bus, qemu_irq *pic)
724 for (c = soundhw; c->name; ++c) {
727 c->init.init_isa(pic);
730 c->init.init_pci(pci_bus);
738 static void pc_init_ne2k_isa(NICInfo *nd)
740 static int nb_ne2k = 0;
742 if (nb_ne2k == NE2000_NB_MAX)
744 isa_ne2000_init(ne2000_io[nb_ne2k],
745 ne2000_irq[nb_ne2k], nd);
749 int cpu_is_bsp(CPUState *env)
751 /* We hard-wire the BSP to the first CPU. */
752 return env->cpu_index == 0;
755 static CPUState *pc_new_cpu(const char *cpu_model)
759 env = cpu_init(cpu_model);
761 fprintf(stderr, "Unable to find x86 CPU definition\n");
764 if ((env->cpuid_features & CPUID_APIC) || smp_cpus > 1) {
765 env->cpuid_apic_id = env->cpu_index;
766 /* APIC reset callback resets cpu */
769 qemu_register_reset((QEMUResetHandler*)cpu_reset, env);
774 /* PC hardware initialisation */
775 static void pc_init1(ram_addr_t ram_size,
776 const char *boot_device,
777 const char *kernel_filename,
778 const char *kernel_cmdline,
779 const char *initrd_filename,
780 const char *cpu_model,
784 int ret, linux_boot, i;
785 ram_addr_t ram_addr, bios_offset, option_rom_offset;
786 ram_addr_t below_4g_mem_size, above_4g_mem_size = 0;
787 int bios_size, isa_bios_size;
790 int piix3_devfn = -1;
795 IsaIrqState *isa_irq_state;
796 DriveInfo *hd[MAX_IDE_BUS * MAX_IDE_DEVS];
797 DriveInfo *fd[MAX_FD];
800 if (ram_size >= 0xe0000000 ) {
801 above_4g_mem_size = ram_size - 0xe0000000;
802 below_4g_mem_size = 0xe0000000;
804 below_4g_mem_size = ram_size;
807 linux_boot = (kernel_filename != NULL);
810 if (cpu_model == NULL) {
812 cpu_model = "qemu64";
814 cpu_model = "qemu32";
818 for (i = 0; i < smp_cpus; i++) {
819 env = pc_new_cpu(cpu_model);
825 ram_addr = qemu_ram_alloc(below_4g_mem_size);
826 cpu_register_physical_memory(0, 0xa0000, ram_addr);
827 cpu_register_physical_memory(0x100000,
828 below_4g_mem_size - 0x100000,
829 ram_addr + 0x100000);
831 /* above 4giga memory allocation */
832 if (above_4g_mem_size > 0) {
833 #if TARGET_PHYS_ADDR_BITS == 32
834 hw_error("To much RAM for 32-bit physical address");
836 ram_addr = qemu_ram_alloc(above_4g_mem_size);
837 cpu_register_physical_memory(0x100000000ULL,
845 if (bios_name == NULL)
846 bios_name = BIOS_FILENAME;
847 filename = qemu_find_file(QEMU_FILE_TYPE_BIOS, bios_name);
849 bios_size = get_image_size(filename);
853 if (bios_size <= 0 ||
854 (bios_size % 65536) != 0) {
857 bios_offset = qemu_ram_alloc(bios_size);
858 ret = rom_add_file_fixed(bios_name, (uint32_t)(-bios_size));
861 fprintf(stderr, "qemu: could not load PC BIOS '%s'\n", bios_name);
867 /* map the last 128KB of the BIOS in ISA space */
868 isa_bios_size = bios_size;
869 if (isa_bios_size > (128 * 1024))
870 isa_bios_size = 128 * 1024;
871 cpu_register_physical_memory(0x100000 - isa_bios_size,
873 (bios_offset + bios_size - isa_bios_size) | IO_MEM_ROM);
875 option_rom_offset = qemu_ram_alloc(PC_ROM_SIZE);
876 cpu_register_physical_memory(PC_ROM_MIN_VGA, PC_ROM_SIZE, option_rom_offset);
878 /* map all the bios at the top of memory */
879 cpu_register_physical_memory((uint32_t)(-bios_size),
880 bios_size, bios_offset | IO_MEM_ROM);
882 fw_cfg = bochs_bios_init();
886 load_linux(fw_cfg, kernel_filename, initrd_filename, kernel_cmdline, below_4g_mem_size);
889 for (i = 0; i < nb_option_roms; i++) {
890 rom_add_option(option_rom[i]);
893 cpu_irq = qemu_allocate_irqs(pic_irq_request, NULL, 1);
894 i8259 = i8259_init(cpu_irq[0]);
895 isa_irq_state = qemu_mallocz(sizeof(*isa_irq_state));
896 isa_irq_state->i8259 = i8259;
897 isa_irq = qemu_allocate_irqs(isa_irq_handler, isa_irq_state, 24);
900 pci_bus = i440fx_init(&i440fx_state, &piix3_devfn, isa_irq);
905 isa_bus_irqs(isa_irq);
907 ferr_irq = isa_reserve_irq(13);
909 /* init basic PC hardware */
910 register_ioport_write(0x80, 1, 1, ioport80_write, NULL);
912 register_ioport_write(0xf0, 1, 1, ioportF0_write, NULL);
914 if (cirrus_vga_enabled) {
916 pci_cirrus_vga_init(pci_bus);
918 isa_cirrus_vga_init();
920 } else if (vmsvga_enabled) {
922 pci_vmsvga_init(pci_bus);
924 fprintf(stderr, "%s: vmware_vga: no PCI bus\n", __FUNCTION__);
925 } else if (std_vga_enabled) {
927 pci_vga_init(pci_bus, 0, 0);
933 rtc_state = rtc_init(2000);
935 qemu_register_boot_set(pc_boot_set, rtc_state);
937 register_ioport_read(0x92, 1, 1, ioport92_read, NULL);
938 register_ioport_write(0x92, 1, 1, ioport92_write, NULL);
941 isa_irq_state->ioapic = ioapic_init();
943 pit = pit_init(0x40, isa_reserve_irq(0));
949 for(i = 0; i < MAX_SERIAL_PORTS; i++) {
951 serial_isa_init(i, serial_hds[i]);
955 for(i = 0; i < MAX_PARALLEL_PORTS; i++) {
956 if (parallel_hds[i]) {
957 parallel_init(i, parallel_hds[i]);
961 for(i = 0; i < nb_nics; i++) {
962 NICInfo *nd = &nd_table[i];
964 if (!pci_enabled || (nd->model && strcmp(nd->model, "ne2k_isa") == 0))
965 pc_init_ne2k_isa(nd);
967 pci_nic_init_nofail(nd, "e1000", NULL);
970 if (drive_get_max_bus(IF_IDE) >= MAX_IDE_BUS) {
971 fprintf(stderr, "qemu: too many IDE bus\n");
975 for(i = 0; i < MAX_IDE_BUS * MAX_IDE_DEVS; i++) {
976 hd[i] = drive_get(IF_IDE, i / MAX_IDE_DEVS, i % MAX_IDE_DEVS);
980 pci_piix3_ide_init(pci_bus, hd, piix3_devfn + 1);
982 for(i = 0; i < MAX_IDE_BUS; i++) {
983 isa_ide_init(ide_iobase[i], ide_iobase2[i], ide_irq[i],
984 hd[MAX_IDE_DEVS * i], hd[MAX_IDE_DEVS * i + 1]);
988 isa_dev = isa_create_simple("i8042");
991 audio_init(pci_enabled ? pci_bus : NULL, isa_irq);
994 for(i = 0; i < MAX_FD; i++) {
995 fd[i] = drive_get(IF_FLOPPY, 0, i);
997 floppy_controller = fdctrl_init_isa(fd);
999 cmos_init(below_4g_mem_size, above_4g_mem_size, boot_device, hd);
1001 if (pci_enabled && usb_enabled) {
1002 usb_uhci_piix3_init(pci_bus, piix3_devfn + 2);
1005 if (pci_enabled && acpi_enabled) {
1006 uint8_t *eeprom_buf = qemu_mallocz(8 * 256); /* XXX: make this persistent */
1009 /* TODO: Populate SPD eeprom data. */
1010 smbus = piix4_pm_init(pci_bus, piix3_devfn + 3, 0xb100,
1011 isa_reserve_irq(9));
1012 for (i = 0; i < 8; i++) {
1013 DeviceState *eeprom;
1014 eeprom = qdev_create((BusState *)smbus, "smbus-eeprom");
1015 qdev_prop_set_uint8(eeprom, "address", 0x50 + i);
1016 qdev_prop_set_ptr(eeprom, "data", eeprom_buf + (i * 256));
1017 qdev_init_nofail(eeprom);
1019 piix4_acpi_system_hot_add_init(pci_bus);
1023 i440fx_init_memory_mappings(i440fx_state);
1030 max_bus = drive_get_max_bus(IF_SCSI);
1031 for (bus = 0; bus <= max_bus; bus++) {
1032 pci_create_simple(pci_bus, -1, "lsi53c895a");
1037 static void pc_init_pci(ram_addr_t ram_size,
1038 const char *boot_device,
1039 const char *kernel_filename,
1040 const char *kernel_cmdline,
1041 const char *initrd_filename,
1042 const char *cpu_model)
1044 pc_init1(ram_size, boot_device,
1045 kernel_filename, kernel_cmdline,
1046 initrd_filename, cpu_model, 1);
1049 static void pc_init_isa(ram_addr_t ram_size,
1050 const char *boot_device,
1051 const char *kernel_filename,
1052 const char *kernel_cmdline,
1053 const char *initrd_filename,
1054 const char *cpu_model)
1056 if (cpu_model == NULL)
1058 pc_init1(ram_size, boot_device,
1059 kernel_filename, kernel_cmdline,
1060 initrd_filename, cpu_model, 0);
1063 /* set CMOS shutdown status register (index 0xF) as S3_resume(0xFE)
1064 BIOS will read it and start S3 resume at POST Entry */
1065 void cmos_set_s3_resume(void)
1068 rtc_set_memory(rtc_state, 0xF, 0xFE);
1071 static QEMUMachine pc_machine = {
1074 .desc = "Standard PC",
1075 .init = pc_init_pci,
1080 static QEMUMachine pc_machine_v0_12 = {
1082 .desc = "Standard PC",
1083 .init = pc_init_pci,
1085 .compat_props = (GlobalProperty[]) {
1087 .driver = "virtio-serial-pci",
1088 .property = "max_nr_ports",
1089 .value = stringify(1),
1091 .driver = "virtio-serial-pci",
1092 .property = "vectors",
1093 .value = stringify(0),
1095 { /* end of list */ }
1099 static QEMUMachine pc_machine_v0_11 = {
1101 .desc = "Standard PC, qemu 0.11",
1102 .init = pc_init_pci,
1104 .compat_props = (GlobalProperty[]) {
1106 .driver = "virtio-blk-pci",
1107 .property = "vectors",
1108 .value = stringify(0),
1110 .driver = "virtio-serial-pci",
1111 .property = "max_nr_ports",
1112 .value = stringify(1),
1114 .driver = "virtio-serial-pci",
1115 .property = "vectors",
1116 .value = stringify(0),
1118 .driver = "ide-drive",
1122 .driver = "scsi-disk",
1127 .property = "rombar",
1128 .value = stringify(0),
1130 { /* end of list */ }
1134 static QEMUMachine pc_machine_v0_10 = {
1136 .desc = "Standard PC, qemu 0.10",
1137 .init = pc_init_pci,
1139 .compat_props = (GlobalProperty[]) {
1141 .driver = "virtio-blk-pci",
1142 .property = "class",
1143 .value = stringify(PCI_CLASS_STORAGE_OTHER),
1145 .driver = "virtio-serial-pci",
1146 .property = "class",
1147 .value = stringify(PCI_CLASS_DISPLAY_OTHER),
1149 .driver = "virtio-serial-pci",
1150 .property = "max_nr_ports",
1151 .value = stringify(1),
1153 .driver = "virtio-serial-pci",
1154 .property = "vectors",
1155 .value = stringify(0),
1157 .driver = "virtio-net-pci",
1158 .property = "vectors",
1159 .value = stringify(0),
1161 .driver = "virtio-blk-pci",
1162 .property = "vectors",
1163 .value = stringify(0),
1165 .driver = "ide-drive",
1169 .driver = "scsi-disk",
1174 .property = "rombar",
1175 .value = stringify(0),
1177 { /* end of list */ }
1181 static QEMUMachine isapc_machine = {
1183 .desc = "ISA-only PC",
1184 .init = pc_init_isa,
1188 static void pc_machine_init(void)
1190 qemu_register_machine(&pc_machine);
1191 qemu_register_machine(&pc_machine_v0_12);
1192 qemu_register_machine(&pc_machine_v0_11);
1193 qemu_register_machine(&pc_machine_v0_10);
1194 qemu_register_machine(&isapc_machine);
1197 machine_init(pc_machine_init);