2 * QEMU PC System Emulator
4 * Copyright (c) 2003-2004 Fabrice Bellard
6 * Permission is hereby granted, free of charge, to any person obtaining a copy
7 * of this software and associated documentation files (the "Software"), to deal
8 * in the Software without restriction, including without limitation the rights
9 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
10 * copies of the Software, and to permit persons to whom the Software is
11 * furnished to do so, subject to the following conditions:
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
19 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
28 #include "vmware_vga.h"
35 #include "audio/audio.h"
41 #include "hpet_emul.h"
47 #include "multiboot.h"
49 /* output Bochs bios info messages */
52 #define BIOS_FILENAME "bios.bin"
54 #define PC_MAX_BIOS_SIZE (4 * 1024 * 1024)
56 /* Leave a chunk of memory at the top of RAM for the BIOS ACPI tables. */
57 #define ACPI_DATA_SIZE 0x10000
58 #define BIOS_CFG_IOPORT 0x510
59 #define FW_CFG_ACPI_TABLES (FW_CFG_ARCH_LOCAL + 0)
60 #define FW_CFG_SMBIOS_ENTRIES (FW_CFG_ARCH_LOCAL + 1)
61 #define FW_CFG_IRQ0_OVERRIDE (FW_CFG_ARCH_LOCAL + 2)
65 static fdctrl_t *floppy_controller;
66 static RTCState *rtc_state;
68 static PCII440FXState *i440fx_state;
70 typedef struct isa_irq_state {
75 static void isa_irq_handler(void *opaque, int n, int level)
77 IsaIrqState *isa = (IsaIrqState *)opaque;
80 qemu_set_irq(isa->i8259[n], level);
83 qemu_set_irq(isa->ioapic[n], level);
86 static void ioport80_write(void *opaque, uint32_t addr, uint32_t data)
90 /* MSDOS compatibility mode FPU exception support */
91 static qemu_irq ferr_irq;
92 /* XXX: add IGNNE support */
93 void cpu_set_ferr(CPUX86State *s)
95 qemu_irq_raise(ferr_irq);
98 static void ioportF0_write(void *opaque, uint32_t addr, uint32_t data)
100 qemu_irq_lower(ferr_irq);
104 uint64_t cpu_get_tsc(CPUX86State *env)
106 return cpu_get_ticks();
110 void cpu_smm_update(CPUState *env)
112 if (i440fx_state && env == first_cpu)
113 i440fx_set_smm(i440fx_state, (env->hflags >> HF_SMM_SHIFT) & 1);
118 int cpu_get_pic_interrupt(CPUState *env)
122 intno = apic_get_interrupt(env);
124 /* set irq request if a PIC irq is still pending */
125 /* XXX: improve that */
126 pic_update_irq(isa_pic);
129 /* read the irq from the PIC */
130 if (!apic_accept_pic_intr(env))
133 intno = pic_read_irq(isa_pic);
137 static void pic_irq_request(void *opaque, int irq, int level)
139 CPUState *env = first_cpu;
141 if (env->apic_state) {
143 if (apic_accept_pic_intr(env))
144 apic_deliver_pic_intr(env, level);
149 cpu_interrupt(env, CPU_INTERRUPT_HARD);
151 cpu_reset_interrupt(env, CPU_INTERRUPT_HARD);
155 /* PC cmos mappings */
157 #define REG_EQUIPMENT_BYTE 0x14
159 static int cmos_get_fd_drive_type(int fd0)
165 /* 1.44 Mb 3"5 drive */
169 /* 2.88 Mb 3"5 drive */
173 /* 1.2 Mb 5"5 drive */
183 static void cmos_init_hd(int type_ofs, int info_ofs, BlockDriverState *hd)
185 RTCState *s = rtc_state;
186 int cylinders, heads, sectors;
187 bdrv_get_geometry_hint(hd, &cylinders, &heads, §ors);
188 rtc_set_memory(s, type_ofs, 47);
189 rtc_set_memory(s, info_ofs, cylinders);
190 rtc_set_memory(s, info_ofs + 1, cylinders >> 8);
191 rtc_set_memory(s, info_ofs + 2, heads);
192 rtc_set_memory(s, info_ofs + 3, 0xff);
193 rtc_set_memory(s, info_ofs + 4, 0xff);
194 rtc_set_memory(s, info_ofs + 5, 0xc0 | ((heads > 8) << 3));
195 rtc_set_memory(s, info_ofs + 6, cylinders);
196 rtc_set_memory(s, info_ofs + 7, cylinders >> 8);
197 rtc_set_memory(s, info_ofs + 8, sectors);
200 /* convert boot_device letter to something recognizable by the bios */
201 static int boot_device2nibble(char boot_device)
203 switch(boot_device) {
206 return 0x01; /* floppy boot */
208 return 0x02; /* hard drive boot */
210 return 0x03; /* CD-ROM boot */
212 return 0x04; /* Network boot */
217 /* copy/pasted from cmos_init, should be made a general function
218 and used there as well */
219 static int pc_boot_set(void *opaque, const char *boot_device)
221 Monitor *mon = cur_mon;
222 #define PC_MAX_BOOT_DEVICES 3
223 RTCState *s = (RTCState *)opaque;
224 int nbds, bds[3] = { 0, };
227 nbds = strlen(boot_device);
228 if (nbds > PC_MAX_BOOT_DEVICES) {
229 monitor_printf(mon, "Too many boot devices for PC\n");
232 for (i = 0; i < nbds; i++) {
233 bds[i] = boot_device2nibble(boot_device[i]);
235 monitor_printf(mon, "Invalid boot device for PC: '%c'\n",
240 rtc_set_memory(s, 0x3d, (bds[1] << 4) | bds[0]);
241 rtc_set_memory(s, 0x38, (bds[2] << 4));
245 /* hd_table must contain 4 block drivers */
246 static void cmos_init(ram_addr_t ram_size, ram_addr_t above_4g_mem_size,
247 const char *boot_device, DriveInfo **hd_table)
249 RTCState *s = rtc_state;
250 int nbds, bds[3] = { 0, };
255 /* various important CMOS locations needed by PC/Bochs bios */
258 val = 640; /* base memory in K */
259 rtc_set_memory(s, 0x15, val);
260 rtc_set_memory(s, 0x16, val >> 8);
262 val = (ram_size / 1024) - 1024;
265 rtc_set_memory(s, 0x17, val);
266 rtc_set_memory(s, 0x18, val >> 8);
267 rtc_set_memory(s, 0x30, val);
268 rtc_set_memory(s, 0x31, val >> 8);
270 if (above_4g_mem_size) {
271 rtc_set_memory(s, 0x5b, (unsigned int)above_4g_mem_size >> 16);
272 rtc_set_memory(s, 0x5c, (unsigned int)above_4g_mem_size >> 24);
273 rtc_set_memory(s, 0x5d, (uint64_t)above_4g_mem_size >> 32);
276 if (ram_size > (16 * 1024 * 1024))
277 val = (ram_size / 65536) - ((16 * 1024 * 1024) / 65536);
282 rtc_set_memory(s, 0x34, val);
283 rtc_set_memory(s, 0x35, val >> 8);
285 /* set the number of CPU */
286 rtc_set_memory(s, 0x5f, smp_cpus - 1);
288 /* set boot devices, and disable floppy signature check if requested */
289 #define PC_MAX_BOOT_DEVICES 3
290 nbds = strlen(boot_device);
291 if (nbds > PC_MAX_BOOT_DEVICES) {
292 fprintf(stderr, "Too many boot devices for PC\n");
295 for (i = 0; i < nbds; i++) {
296 bds[i] = boot_device2nibble(boot_device[i]);
298 fprintf(stderr, "Invalid boot device for PC: '%c'\n",
303 rtc_set_memory(s, 0x3d, (bds[1] << 4) | bds[0]);
304 rtc_set_memory(s, 0x38, (bds[2] << 4) | (fd_bootchk ? 0x0 : 0x1));
308 fd0 = fdctrl_get_drive_type(floppy_controller, 0);
309 fd1 = fdctrl_get_drive_type(floppy_controller, 1);
311 val = (cmos_get_fd_drive_type(fd0) << 4) | cmos_get_fd_drive_type(fd1);
312 rtc_set_memory(s, 0x10, val);
324 val |= 0x01; /* 1 drive, ready for boot */
327 val |= 0x41; /* 2 drives, ready for boot */
330 val |= 0x02; /* FPU is there */
331 val |= 0x04; /* PS/2 mouse installed */
332 rtc_set_memory(s, REG_EQUIPMENT_BYTE, val);
336 rtc_set_memory(s, 0x12, (hd_table[0] ? 0xf0 : 0) | (hd_table[1] ? 0x0f : 0));
338 cmos_init_hd(0x19, 0x1b, hd_table[0]->bdrv);
340 cmos_init_hd(0x1a, 0x24, hd_table[1]->bdrv);
343 for (i = 0; i < 4; i++) {
345 int cylinders, heads, sectors, translation;
346 /* NOTE: bdrv_get_geometry_hint() returns the physical
347 geometry. It is always such that: 1 <= sects <= 63, 1
348 <= heads <= 16, 1 <= cylinders <= 16383. The BIOS
349 geometry can be different if a translation is done. */
350 translation = bdrv_get_translation_hint(hd_table[i]->bdrv);
351 if (translation == BIOS_ATA_TRANSLATION_AUTO) {
352 bdrv_get_geometry_hint(hd_table[i]->bdrv, &cylinders, &heads, §ors);
353 if (cylinders <= 1024 && heads <= 16 && sectors <= 63) {
354 /* No translation. */
357 /* LBA translation. */
363 val |= translation << (i * 2);
366 rtc_set_memory(s, 0x39, val);
369 void ioport_set_a20(int enable)
371 /* XXX: send to all CPUs ? */
372 cpu_x86_set_a20(first_cpu, enable);
375 int ioport_get_a20(void)
377 return ((first_cpu->a20_mask >> 20) & 1);
380 static void ioport92_write(void *opaque, uint32_t addr, uint32_t val)
382 ioport_set_a20((val >> 1) & 1);
383 /* XXX: bit 0 is fast reset */
386 static uint32_t ioport92_read(void *opaque, uint32_t addr)
388 return ioport_get_a20() << 1;
391 /***********************************************************/
392 /* Bochs BIOS debug ports */
394 static void bochs_bios_write(void *opaque, uint32_t addr, uint32_t val)
396 static const char shutdown_str[8] = "Shutdown";
397 static int shutdown_index = 0;
400 /* Bochs BIOS messages */
403 fprintf(stderr, "BIOS panic at rombios.c, line %d\n", val);
408 fprintf(stderr, "%c", val);
412 /* same as Bochs power off */
413 if (val == shutdown_str[shutdown_index]) {
415 if (shutdown_index == 8) {
417 qemu_system_shutdown_request();
424 /* LGPL'ed VGA BIOS messages */
427 fprintf(stderr, "VGA BIOS panic, line %d\n", val);
432 fprintf(stderr, "%c", val);
438 static void *bochs_bios_init(void)
441 uint8_t *smbios_table;
443 uint64_t *numa_fw_cfg;
446 register_ioport_write(0x400, 1, 2, bochs_bios_write, NULL);
447 register_ioport_write(0x401, 1, 2, bochs_bios_write, NULL);
448 register_ioport_write(0x402, 1, 1, bochs_bios_write, NULL);
449 register_ioport_write(0x403, 1, 1, bochs_bios_write, NULL);
450 register_ioport_write(0x8900, 1, 1, bochs_bios_write, NULL);
452 register_ioport_write(0x501, 1, 2, bochs_bios_write, NULL);
453 register_ioport_write(0x502, 1, 2, bochs_bios_write, NULL);
454 register_ioport_write(0x500, 1, 1, bochs_bios_write, NULL);
455 register_ioport_write(0x503, 1, 1, bochs_bios_write, NULL);
457 fw_cfg = fw_cfg_init(BIOS_CFG_IOPORT, BIOS_CFG_IOPORT + 1, 0, 0);
459 fw_cfg_add_i32(fw_cfg, FW_CFG_ID, 1);
460 fw_cfg_add_i64(fw_cfg, FW_CFG_RAM_SIZE, (uint64_t)ram_size);
461 fw_cfg_add_bytes(fw_cfg, FW_CFG_ACPI_TABLES, (uint8_t *)acpi_tables,
463 fw_cfg_add_bytes(fw_cfg, FW_CFG_IRQ0_OVERRIDE, &irq0override, 1);
465 smbios_table = smbios_get_table(&smbios_len);
467 fw_cfg_add_bytes(fw_cfg, FW_CFG_SMBIOS_ENTRIES,
468 smbios_table, smbios_len);
470 /* allocate memory for the NUMA channel: one (64bit) word for the number
471 * of nodes, one word for each VCPU->node and one word for each node to
472 * hold the amount of memory.
474 numa_fw_cfg = qemu_mallocz((1 + smp_cpus + nb_numa_nodes) * 8);
475 numa_fw_cfg[0] = cpu_to_le64(nb_numa_nodes);
476 for (i = 0; i < smp_cpus; i++) {
477 for (j = 0; j < nb_numa_nodes; j++) {
478 if (node_cpumask[j] & (1 << i)) {
479 numa_fw_cfg[i + 1] = cpu_to_le64(j);
484 for (i = 0; i < nb_numa_nodes; i++) {
485 numa_fw_cfg[smp_cpus + 1 + i] = cpu_to_le64(node_mem[i]);
487 fw_cfg_add_bytes(fw_cfg, FW_CFG_NUMA, (uint8_t *)numa_fw_cfg,
488 (1 + smp_cpus + nb_numa_nodes) * 8);
493 static long get_file_size(FILE *f)
497 /* XXX: on Unix systems, using fstat() probably makes more sense */
500 fseek(f, 0, SEEK_END);
502 fseek(f, where, SEEK_SET);
507 static void load_linux(void *fw_cfg,
508 const char *kernel_filename,
509 const char *initrd_filename,
510 const char *kernel_cmdline,
511 target_phys_addr_t max_ram_size)
514 int setup_size, kernel_size, initrd_size = 0, cmdline_size;
516 uint8_t header[8192], *setup, *kernel, *initrd_data;
517 target_phys_addr_t real_addr, prot_addr, cmdline_addr, initrd_addr = 0;
521 /* Align to 16 bytes as a paranoia measure */
522 cmdline_size = (strlen(kernel_cmdline)+16) & ~15;
524 /* load the kernel header */
525 f = fopen(kernel_filename, "rb");
526 if (!f || !(kernel_size = get_file_size(f)) ||
527 fread(header, 1, MIN(ARRAY_SIZE(header), kernel_size), f) !=
528 MIN(ARRAY_SIZE(header), kernel_size)) {
529 fprintf(stderr, "qemu: could not load kernel '%s': %s\n",
530 kernel_filename, strerror(errno));
534 /* kernel protocol version */
536 fprintf(stderr, "header magic: %#x\n", ldl_p(header+0x202));
538 if (ldl_p(header+0x202) == 0x53726448)
539 protocol = lduw_p(header+0x206);
541 /* This looks like a multiboot kernel. If it is, let's stop
542 treating it like a Linux kernel. */
543 if (load_multiboot(fw_cfg, f, kernel_filename, initrd_filename,
544 kernel_cmdline, kernel_size, header))
549 if (protocol < 0x200 || !(header[0x211] & 0x01)) {
552 cmdline_addr = 0x9a000 - cmdline_size;
554 } else if (protocol < 0x202) {
555 /* High but ancient kernel */
557 cmdline_addr = 0x9a000 - cmdline_size;
558 prot_addr = 0x100000;
560 /* High and recent kernel */
562 cmdline_addr = 0x20000;
563 prot_addr = 0x100000;
568 "qemu: real_addr = 0x" TARGET_FMT_plx "\n"
569 "qemu: cmdline_addr = 0x" TARGET_FMT_plx "\n"
570 "qemu: prot_addr = 0x" TARGET_FMT_plx "\n",
576 /* highest address for loading the initrd */
577 if (protocol >= 0x203)
578 initrd_max = ldl_p(header+0x22c);
580 initrd_max = 0x37ffffff;
582 if (initrd_max >= max_ram_size-ACPI_DATA_SIZE)
583 initrd_max = max_ram_size-ACPI_DATA_SIZE-1;
585 fw_cfg_add_i32(fw_cfg, FW_CFG_CMDLINE_ADDR, cmdline_addr);
586 fw_cfg_add_i32(fw_cfg, FW_CFG_CMDLINE_SIZE, strlen(kernel_cmdline)+1);
587 fw_cfg_add_bytes(fw_cfg, FW_CFG_CMDLINE_DATA,
588 (uint8_t*)strdup(kernel_cmdline),
589 strlen(kernel_cmdline)+1);
591 if (protocol >= 0x202) {
592 stl_p(header+0x228, cmdline_addr);
594 stw_p(header+0x20, 0xA33F);
595 stw_p(header+0x22, cmdline_addr-real_addr);
598 /* handle vga= parameter */
599 vmode = strstr(kernel_cmdline, "vga=");
601 unsigned int video_mode;
604 if (!strncmp(vmode, "normal", 6)) {
606 } else if (!strncmp(vmode, "ext", 3)) {
608 } else if (!strncmp(vmode, "ask", 3)) {
611 video_mode = strtol(vmode, NULL, 0);
613 stw_p(header+0x1fa, video_mode);
617 /* High nybble = B reserved for Qemu; low nybble is revision number.
618 If this code is substantially changed, you may want to consider
619 incrementing the revision. */
620 if (protocol >= 0x200)
621 header[0x210] = 0xB0;
624 if (protocol >= 0x201) {
625 header[0x211] |= 0x80; /* CAN_USE_HEAP */
626 stw_p(header+0x224, cmdline_addr-real_addr-0x200);
630 if (initrd_filename) {
631 if (protocol < 0x200) {
632 fprintf(stderr, "qemu: linux kernel too old to load a ram disk\n");
636 initrd_size = get_image_size(initrd_filename);
637 initrd_addr = (initrd_max-initrd_size) & ~4095;
639 initrd_data = qemu_malloc(initrd_size);
640 load_image(initrd_filename, initrd_data);
642 fw_cfg_add_i32(fw_cfg, FW_CFG_INITRD_ADDR, initrd_addr);
643 fw_cfg_add_i32(fw_cfg, FW_CFG_INITRD_SIZE, initrd_size);
644 fw_cfg_add_bytes(fw_cfg, FW_CFG_INITRD_DATA, initrd_data, initrd_size);
646 stl_p(header+0x218, initrd_addr);
647 stl_p(header+0x21c, initrd_size);
650 /* load kernel and setup */
651 setup_size = header[0x1f1];
654 setup_size = (setup_size+1)*512;
655 kernel_size -= setup_size;
657 setup = qemu_malloc(setup_size);
658 kernel = qemu_malloc(kernel_size);
659 fseek(f, 0, SEEK_SET);
660 if (fread(setup, 1, setup_size, f) != setup_size) {
661 fprintf(stderr, "fread() failed\n");
664 if (fread(kernel, 1, kernel_size, f) != kernel_size) {
665 fprintf(stderr, "fread() failed\n");
669 memcpy(setup, header, MIN(sizeof(header), setup_size));
671 fw_cfg_add_i32(fw_cfg, FW_CFG_KERNEL_ADDR, prot_addr);
672 fw_cfg_add_i32(fw_cfg, FW_CFG_KERNEL_SIZE, kernel_size);
673 fw_cfg_add_bytes(fw_cfg, FW_CFG_KERNEL_DATA, kernel, kernel_size);
675 fw_cfg_add_i32(fw_cfg, FW_CFG_SETUP_ADDR, real_addr);
676 fw_cfg_add_i32(fw_cfg, FW_CFG_SETUP_SIZE, setup_size);
677 fw_cfg_add_bytes(fw_cfg, FW_CFG_SETUP_DATA, setup, setup_size);
679 option_rom[nb_option_roms] = "linuxboot.bin";
683 static const int ide_iobase[2] = { 0x1f0, 0x170 };
684 static const int ide_iobase2[2] = { 0x3f6, 0x376 };
685 static const int ide_irq[2] = { 14, 15 };
687 #define NE2000_NB_MAX 6
689 static const int ne2000_io[NE2000_NB_MAX] = { 0x300, 0x320, 0x340, 0x360,
691 static const int ne2000_irq[NE2000_NB_MAX] = { 9, 10, 11, 3, 4, 5 };
693 static const int parallel_io[MAX_PARALLEL_PORTS] = { 0x378, 0x278, 0x3bc };
694 static const int parallel_irq[MAX_PARALLEL_PORTS] = { 7, 7, 7 };
697 static void audio_init (PCIBus *pci_bus, qemu_irq *pic)
701 for (c = soundhw; c->name; ++c) {
704 c->init.init_isa(pic);
707 c->init.init_pci(pci_bus);
715 static void pc_init_ne2k_isa(NICInfo *nd)
717 static int nb_ne2k = 0;
719 if (nb_ne2k == NE2000_NB_MAX)
721 isa_ne2000_init(ne2000_io[nb_ne2k],
722 ne2000_irq[nb_ne2k], nd);
726 int cpu_is_bsp(CPUState *env)
728 return env->cpuid_apic_id == 0;
731 static CPUState *pc_new_cpu(const char *cpu_model)
735 env = cpu_init(cpu_model);
737 fprintf(stderr, "Unable to find x86 CPU definition\n");
740 if ((env->cpuid_features & CPUID_APIC) || smp_cpus > 1) {
741 env->cpuid_apic_id = env->cpu_index;
742 /* APIC reset callback resets cpu */
745 qemu_register_reset((QEMUResetHandler*)cpu_reset, env);
750 /* PC hardware initialisation */
751 static void pc_init1(ram_addr_t ram_size,
752 const char *boot_device,
753 const char *kernel_filename,
754 const char *kernel_cmdline,
755 const char *initrd_filename,
756 const char *cpu_model,
760 int ret, linux_boot, i;
761 ram_addr_t ram_addr, bios_offset, option_rom_offset;
762 ram_addr_t below_4g_mem_size, above_4g_mem_size = 0;
763 int bios_size, isa_bios_size;
766 int piix3_devfn = -1;
771 IsaIrqState *isa_irq_state;
772 DriveInfo *hd[MAX_IDE_BUS * MAX_IDE_DEVS];
773 DriveInfo *fd[MAX_FD];
776 if (ram_size >= 0xe0000000 ) {
777 above_4g_mem_size = ram_size - 0xe0000000;
778 below_4g_mem_size = 0xe0000000;
780 below_4g_mem_size = ram_size;
783 linux_boot = (kernel_filename != NULL);
786 if (cpu_model == NULL) {
788 cpu_model = "qemu64";
790 cpu_model = "qemu32";
794 for (i = 0; i < smp_cpus; i++) {
795 env = pc_new_cpu(cpu_model);
801 ram_addr = qemu_ram_alloc(0xa0000);
802 cpu_register_physical_memory(0, 0xa0000, ram_addr);
804 /* Allocate, even though we won't register, so we don't break the
805 * phys_ram_base + PA assumption. This range includes vga (0xa0000 - 0xc0000),
806 * and some bios areas, which will be registered later
808 ram_addr = qemu_ram_alloc(0x100000 - 0xa0000);
809 ram_addr = qemu_ram_alloc(below_4g_mem_size - 0x100000);
810 cpu_register_physical_memory(0x100000,
811 below_4g_mem_size - 0x100000,
814 /* above 4giga memory allocation */
815 if (above_4g_mem_size > 0) {
816 #if TARGET_PHYS_ADDR_BITS == 32
817 hw_error("To much RAM for 32-bit physical address");
819 ram_addr = qemu_ram_alloc(above_4g_mem_size);
820 cpu_register_physical_memory(0x100000000ULL,
828 if (bios_name == NULL)
829 bios_name = BIOS_FILENAME;
830 filename = qemu_find_file(QEMU_FILE_TYPE_BIOS, bios_name);
832 bios_size = get_image_size(filename);
836 if (bios_size <= 0 ||
837 (bios_size % 65536) != 0) {
840 bios_offset = qemu_ram_alloc(bios_size);
841 ret = rom_add_file_fixed(bios_name, (uint32_t)(-bios_size));
844 fprintf(stderr, "qemu: could not load PC BIOS '%s'\n", bios_name);
850 /* map the last 128KB of the BIOS in ISA space */
851 isa_bios_size = bios_size;
852 if (isa_bios_size > (128 * 1024))
853 isa_bios_size = 128 * 1024;
854 cpu_register_physical_memory(0x100000 - isa_bios_size,
856 (bios_offset + bios_size - isa_bios_size) | IO_MEM_ROM);
860 rom_enable_driver_roms = 1;
861 option_rom_offset = qemu_ram_alloc(PC_ROM_SIZE);
862 cpu_register_physical_memory(PC_ROM_MIN_VGA, PC_ROM_SIZE, option_rom_offset);
864 /* map all the bios at the top of memory */
865 cpu_register_physical_memory((uint32_t)(-bios_size),
866 bios_size, bios_offset | IO_MEM_ROM);
868 fw_cfg = bochs_bios_init();
872 load_linux(fw_cfg, kernel_filename, initrd_filename, kernel_cmdline, below_4g_mem_size);
875 for (i = 0; i < nb_option_roms; i++) {
876 rom_add_option(option_rom[i]);
879 cpu_irq = qemu_allocate_irqs(pic_irq_request, NULL, 1);
880 i8259 = i8259_init(cpu_irq[0]);
881 isa_irq_state = qemu_mallocz(sizeof(*isa_irq_state));
882 isa_irq_state->i8259 = i8259;
883 isa_irq = qemu_allocate_irqs(isa_irq_handler, isa_irq_state, 24);
886 pci_bus = i440fx_init(&i440fx_state, &piix3_devfn, isa_irq);
891 isa_bus_irqs(isa_irq);
893 ferr_irq = isa_reserve_irq(13);
895 /* init basic PC hardware */
896 register_ioport_write(0x80, 1, 1, ioport80_write, NULL);
898 register_ioport_write(0xf0, 1, 1, ioportF0_write, NULL);
900 if (cirrus_vga_enabled) {
902 pci_cirrus_vga_init(pci_bus);
904 isa_cirrus_vga_init();
906 } else if (vmsvga_enabled) {
908 pci_vmsvga_init(pci_bus);
910 fprintf(stderr, "%s: vmware_vga: no PCI bus\n", __FUNCTION__);
911 } else if (std_vga_enabled) {
913 pci_vga_init(pci_bus, 0, 0);
919 rtc_state = rtc_init(2000);
921 qemu_register_boot_set(pc_boot_set, rtc_state);
923 register_ioport_read(0x92, 1, 1, ioport92_read, NULL);
924 register_ioport_write(0x92, 1, 1, ioport92_write, NULL);
927 isa_irq_state->ioapic = ioapic_init();
929 pit = pit_init(0x40, isa_reserve_irq(0));
935 for(i = 0; i < MAX_SERIAL_PORTS; i++) {
937 serial_isa_init(i, serial_hds[i]);
941 for(i = 0; i < MAX_PARALLEL_PORTS; i++) {
942 if (parallel_hds[i]) {
943 parallel_init(i, parallel_hds[i]);
947 for(i = 0; i < nb_nics; i++) {
948 NICInfo *nd = &nd_table[i];
950 if (!pci_enabled || (nd->model && strcmp(nd->model, "ne2k_isa") == 0))
951 pc_init_ne2k_isa(nd);
953 pci_nic_init_nofail(nd, "e1000", NULL);
956 if (drive_get_max_bus(IF_IDE) >= MAX_IDE_BUS) {
957 fprintf(stderr, "qemu: too many IDE bus\n");
961 for(i = 0; i < MAX_IDE_BUS * MAX_IDE_DEVS; i++) {
962 hd[i] = drive_get(IF_IDE, i / MAX_IDE_DEVS, i % MAX_IDE_DEVS);
966 pci_piix3_ide_init(pci_bus, hd, piix3_devfn + 1);
968 for(i = 0; i < MAX_IDE_BUS; i++) {
969 isa_ide_init(ide_iobase[i], ide_iobase2[i], ide_irq[i],
970 hd[MAX_IDE_DEVS * i], hd[MAX_IDE_DEVS * i + 1]);
974 isa_dev = isa_create_simple("i8042");
977 audio_init(pci_enabled ? pci_bus : NULL, isa_irq);
980 for(i = 0; i < MAX_FD; i++) {
981 fd[i] = drive_get(IF_FLOPPY, 0, i);
983 floppy_controller = fdctrl_init_isa(fd);
985 cmos_init(below_4g_mem_size, above_4g_mem_size, boot_device, hd);
987 if (pci_enabled && usb_enabled) {
988 usb_uhci_piix3_init(pci_bus, piix3_devfn + 2);
991 if (pci_enabled && acpi_enabled) {
992 uint8_t *eeprom_buf = qemu_mallocz(8 * 256); /* XXX: make this persistent */
995 /* TODO: Populate SPD eeprom data. */
996 smbus = piix4_pm_init(pci_bus, piix3_devfn + 3, 0xb100,
998 for (i = 0; i < 8; i++) {
1000 eeprom = qdev_create((BusState *)smbus, "smbus-eeprom");
1001 qdev_prop_set_uint8(eeprom, "address", 0x50 + i);
1002 qdev_prop_set_ptr(eeprom, "data", eeprom_buf + (i * 256));
1003 qdev_init_nofail(eeprom);
1005 piix4_acpi_system_hot_add_init(pci_bus);
1009 i440fx_init_memory_mappings(i440fx_state);
1016 max_bus = drive_get_max_bus(IF_SCSI);
1017 for (bus = 0; bus <= max_bus; bus++) {
1018 pci_create_simple(pci_bus, -1, "lsi53c895a");
1022 /* Add virtio console devices */
1024 for(i = 0; i < MAX_VIRTIO_CONSOLES; i++) {
1025 if (virtcon_hds[i]) {
1026 pci_create_simple(pci_bus, -1, "virtio-console-pci");
1032 static void pc_init_pci(ram_addr_t ram_size,
1033 const char *boot_device,
1034 const char *kernel_filename,
1035 const char *kernel_cmdline,
1036 const char *initrd_filename,
1037 const char *cpu_model)
1039 pc_init1(ram_size, boot_device,
1040 kernel_filename, kernel_cmdline,
1041 initrd_filename, cpu_model, 1);
1044 static void pc_init_isa(ram_addr_t ram_size,
1045 const char *boot_device,
1046 const char *kernel_filename,
1047 const char *kernel_cmdline,
1048 const char *initrd_filename,
1049 const char *cpu_model)
1051 if (cpu_model == NULL)
1053 pc_init1(ram_size, boot_device,
1054 kernel_filename, kernel_cmdline,
1055 initrd_filename, cpu_model, 0);
1058 /* set CMOS shutdown status register (index 0xF) as S3_resume(0xFE)
1059 BIOS will read it and start S3 resume at POST Entry */
1060 void cmos_set_s3_resume(void)
1063 rtc_set_memory(rtc_state, 0xF, 0xFE);
1066 static QEMUMachine pc_machine = {
1069 .desc = "Standard PC",
1070 .init = pc_init_pci,
1075 static QEMUMachine pc_machine_v0_11 = {
1077 .desc = "Standard PC, qemu 0.11",
1078 .init = pc_init_pci,
1080 .compat_props = (GlobalProperty[]) {
1082 .driver = "virtio-blk-pci",
1083 .property = "vectors",
1084 .value = stringify(0),
1087 .property = "rombar",
1088 .value = stringify(0),
1090 { /* end of list */ }
1094 static QEMUMachine pc_machine_v0_10 = {
1096 .desc = "Standard PC, qemu 0.10",
1097 .init = pc_init_pci,
1099 .compat_props = (GlobalProperty[]) {
1101 .driver = "virtio-blk-pci",
1102 .property = "class",
1103 .value = stringify(PCI_CLASS_STORAGE_OTHER),
1105 .driver = "virtio-console-pci",
1106 .property = "class",
1107 .value = stringify(PCI_CLASS_DISPLAY_OTHER),
1109 .driver = "virtio-net-pci",
1110 .property = "vectors",
1111 .value = stringify(0),
1113 .driver = "virtio-blk-pci",
1114 .property = "vectors",
1115 .value = stringify(0),
1118 .property = "rombar",
1119 .value = stringify(0),
1121 { /* end of list */ }
1125 static QEMUMachine isapc_machine = {
1127 .desc = "ISA-only PC",
1128 .init = pc_init_isa,
1132 static void pc_machine_init(void)
1134 qemu_register_machine(&pc_machine);
1135 qemu_register_machine(&pc_machine_v0_11);
1136 qemu_register_machine(&pc_machine_v0_10);
1137 qemu_register_machine(&isapc_machine);
1140 machine_init(pc_machine_init);