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"
43 #include "ui/qemu-spice.h"
46 /* output Bochs bios info messages */
49 /* debug PC/ISA interrupts */
53 #define DPRINTF(fmt, ...) \
54 do { printf("CPUIRQ: " fmt , ## __VA_ARGS__); } while (0)
56 #define DPRINTF(fmt, ...)
59 #define BIOS_FILENAME "bios.bin"
61 #define PC_MAX_BIOS_SIZE (4 * 1024 * 1024)
63 /* Leave a chunk of memory at the top of RAM for the BIOS ACPI tables. */
64 #define ACPI_DATA_SIZE 0x10000
65 #define BIOS_CFG_IOPORT 0x510
66 #define FW_CFG_ACPI_TABLES (FW_CFG_ARCH_LOCAL + 0)
67 #define FW_CFG_SMBIOS_ENTRIES (FW_CFG_ARCH_LOCAL + 1)
68 #define FW_CFG_IRQ0_OVERRIDE (FW_CFG_ARCH_LOCAL + 2)
69 #define FW_CFG_E820_TABLE (FW_CFG_ARCH_LOCAL + 3)
70 #define FW_CFG_HPET (FW_CFG_ARCH_LOCAL + 4)
72 #define MSI_ADDR_BASE 0xfee00000
74 #define E820_NR_ENTRIES 16
80 } __attribute((__packed__, __aligned__(4)));
84 struct e820_entry entry[E820_NR_ENTRIES];
85 } __attribute((__packed__, __aligned__(4)));
87 static struct e820_table e820_table;
88 struct hpet_fw_config hpet_cfg = {.count = UINT8_MAX};
90 void isa_irq_handler(void *opaque, int n, int level)
92 IsaIrqState *isa = (IsaIrqState *)opaque;
94 DPRINTF("isa_irqs: %s irq %d\n", level? "raise" : "lower", n);
96 qemu_set_irq(isa->i8259[n], level);
99 qemu_set_irq(isa->ioapic[n], level);
102 static void ioport80_write(void *opaque, uint32_t addr, uint32_t data)
106 /* MSDOS compatibility mode FPU exception support */
107 static qemu_irq ferr_irq;
109 void pc_register_ferr_irq(qemu_irq irq)
114 /* XXX: add IGNNE support */
115 void cpu_set_ferr(CPUX86State *s)
117 qemu_irq_raise(ferr_irq);
120 static void ioportF0_write(void *opaque, uint32_t addr, uint32_t data)
122 qemu_irq_lower(ferr_irq);
126 uint64_t cpu_get_tsc(CPUX86State *env)
128 return cpu_get_ticks();
133 static cpu_set_smm_t smm_set;
134 static void *smm_arg;
136 void cpu_smm_register(cpu_set_smm_t callback, void *arg)
138 assert(smm_set == NULL);
139 assert(smm_arg == NULL);
144 void cpu_smm_update(CPUState *env)
146 if (smm_set && smm_arg && env == first_cpu)
147 smm_set(!!(env->hflags & HF_SMM_MASK), smm_arg);
152 int cpu_get_pic_interrupt(CPUState *env)
156 intno = apic_get_interrupt(env->apic_state);
158 /* set irq request if a PIC irq is still pending */
159 /* XXX: improve that */
160 pic_update_irq(isa_pic);
163 /* read the irq from the PIC */
164 if (!apic_accept_pic_intr(env->apic_state)) {
168 intno = pic_read_irq(isa_pic);
172 static void pic_irq_request(void *opaque, int irq, int level)
174 CPUState *env = first_cpu;
176 DPRINTF("pic_irqs: %s irq %d\n", level? "raise" : "lower", irq);
177 if (env->apic_state) {
179 if (apic_accept_pic_intr(env->apic_state)) {
180 apic_deliver_pic_intr(env->apic_state, level);
186 cpu_interrupt(env, CPU_INTERRUPT_HARD);
188 cpu_reset_interrupt(env, CPU_INTERRUPT_HARD);
192 /* PC cmos mappings */
194 #define REG_EQUIPMENT_BYTE 0x14
196 static int cmos_get_fd_drive_type(FDriveType fd0)
202 /* 1.44 Mb 3"5 drive */
206 /* 2.88 Mb 3"5 drive */
210 /* 1.2 Mb 5"5 drive */
213 case FDRIVE_DRV_NONE:
221 static void cmos_init_hd(int type_ofs, int info_ofs, BlockDriverState *hd,
224 int cylinders, heads, sectors;
225 bdrv_get_geometry_hint(hd, &cylinders, &heads, §ors);
226 rtc_set_memory(s, type_ofs, 47);
227 rtc_set_memory(s, info_ofs, cylinders);
228 rtc_set_memory(s, info_ofs + 1, cylinders >> 8);
229 rtc_set_memory(s, info_ofs + 2, heads);
230 rtc_set_memory(s, info_ofs + 3, 0xff);
231 rtc_set_memory(s, info_ofs + 4, 0xff);
232 rtc_set_memory(s, info_ofs + 5, 0xc0 | ((heads > 8) << 3));
233 rtc_set_memory(s, info_ofs + 6, cylinders);
234 rtc_set_memory(s, info_ofs + 7, cylinders >> 8);
235 rtc_set_memory(s, info_ofs + 8, sectors);
238 /* convert boot_device letter to something recognizable by the bios */
239 static int boot_device2nibble(char boot_device)
241 switch(boot_device) {
244 return 0x01; /* floppy boot */
246 return 0x02; /* hard drive boot */
248 return 0x03; /* CD-ROM boot */
250 return 0x04; /* Network boot */
255 static int set_boot_dev(ISADevice *s, const char *boot_device, int fd_bootchk)
257 #define PC_MAX_BOOT_DEVICES 3
258 int nbds, bds[3] = { 0, };
261 nbds = strlen(boot_device);
262 if (nbds > PC_MAX_BOOT_DEVICES) {
263 error_report("Too many boot devices for PC");
266 for (i = 0; i < nbds; i++) {
267 bds[i] = boot_device2nibble(boot_device[i]);
269 error_report("Invalid boot device for PC: '%c'",
274 rtc_set_memory(s, 0x3d, (bds[1] << 4) | bds[0]);
275 rtc_set_memory(s, 0x38, (bds[2] << 4) | (fd_bootchk ? 0x0 : 0x1));
279 static int pc_boot_set(void *opaque, const char *boot_device)
281 return set_boot_dev(opaque, boot_device, 0);
284 typedef struct pc_cmos_init_late_arg {
285 ISADevice *rtc_state;
286 BusState *idebus0, *idebus1;
287 } pc_cmos_init_late_arg;
289 static void pc_cmos_init_late(void *opaque)
291 pc_cmos_init_late_arg *arg = opaque;
292 ISADevice *s = arg->rtc_state;
294 BlockDriverState *hd_table[4];
297 ide_get_bs(hd_table, arg->idebus0);
298 ide_get_bs(hd_table + 2, arg->idebus1);
300 rtc_set_memory(s, 0x12, (hd_table[0] ? 0xf0 : 0) | (hd_table[1] ? 0x0f : 0));
302 cmos_init_hd(0x19, 0x1b, hd_table[0], s);
304 cmos_init_hd(0x1a, 0x24, hd_table[1], s);
307 for (i = 0; i < 4; i++) {
309 int cylinders, heads, sectors, translation;
310 /* NOTE: bdrv_get_geometry_hint() returns the physical
311 geometry. It is always such that: 1 <= sects <= 63, 1
312 <= heads <= 16, 1 <= cylinders <= 16383. The BIOS
313 geometry can be different if a translation is done. */
314 translation = bdrv_get_translation_hint(hd_table[i]);
315 if (translation == BIOS_ATA_TRANSLATION_AUTO) {
316 bdrv_get_geometry_hint(hd_table[i], &cylinders, &heads, §ors);
317 if (cylinders <= 1024 && heads <= 16 && sectors <= 63) {
318 /* No translation. */
321 /* LBA translation. */
327 val |= translation << (i * 2);
330 rtc_set_memory(s, 0x39, val);
332 qemu_unregister_reset(pc_cmos_init_late, opaque);
335 void pc_cmos_init(ram_addr_t ram_size, ram_addr_t above_4g_mem_size,
336 const char *boot_device,
337 BusState *idebus0, BusState *idebus1,
340 int val, nb, nb_heads, max_track, last_sect, i;
341 FDriveType fd_type[2];
343 static pc_cmos_init_late_arg arg;
345 /* various important CMOS locations needed by PC/Bochs bios */
348 val = 640; /* base memory in K */
349 rtc_set_memory(s, 0x15, val);
350 rtc_set_memory(s, 0x16, val >> 8);
352 val = (ram_size / 1024) - 1024;
355 rtc_set_memory(s, 0x17, val);
356 rtc_set_memory(s, 0x18, val >> 8);
357 rtc_set_memory(s, 0x30, val);
358 rtc_set_memory(s, 0x31, val >> 8);
360 if (above_4g_mem_size) {
361 rtc_set_memory(s, 0x5b, (unsigned int)above_4g_mem_size >> 16);
362 rtc_set_memory(s, 0x5c, (unsigned int)above_4g_mem_size >> 24);
363 rtc_set_memory(s, 0x5d, (uint64_t)above_4g_mem_size >> 32);
366 if (ram_size > (16 * 1024 * 1024))
367 val = (ram_size / 65536) - ((16 * 1024 * 1024) / 65536);
372 rtc_set_memory(s, 0x34, val);
373 rtc_set_memory(s, 0x35, val >> 8);
375 /* set the number of CPU */
376 rtc_set_memory(s, 0x5f, smp_cpus - 1);
378 /* set boot devices, and disable floppy signature check if requested */
379 if (set_boot_dev(s, boot_device, fd_bootchk)) {
384 for (i = 0; i < 2; i++) {
385 fd[i] = drive_get(IF_FLOPPY, 0, i);
386 if (fd[i] && bdrv_is_inserted(fd[i]->bdrv)) {
387 bdrv_get_floppy_geometry_hint(fd[i]->bdrv, &nb_heads, &max_track,
388 &last_sect, FDRIVE_DRV_NONE,
391 fd_type[i] = FDRIVE_DRV_NONE;
394 val = (cmos_get_fd_drive_type(fd_type[0]) << 4) |
395 cmos_get_fd_drive_type(fd_type[1]);
396 rtc_set_memory(s, 0x10, val);
400 if (fd_type[0] < FDRIVE_DRV_NONE) {
403 if (fd_type[1] < FDRIVE_DRV_NONE) {
410 val |= 0x01; /* 1 drive, ready for boot */
413 val |= 0x41; /* 2 drives, ready for boot */
416 val |= 0x02; /* FPU is there */
417 val |= 0x04; /* PS/2 mouse installed */
418 rtc_set_memory(s, REG_EQUIPMENT_BYTE, val);
422 arg.idebus0 = idebus0;
423 arg.idebus1 = idebus1;
424 qemu_register_reset(pc_cmos_init_late, &arg);
427 /* port 92 stuff: could be split off */
428 typedef struct Port92State {
434 static void port92_write(void *opaque, uint32_t addr, uint32_t val)
436 Port92State *s = opaque;
438 DPRINTF("port92: write 0x%02x\n", val);
440 qemu_set_irq(*s->a20_out, (val >> 1) & 1);
442 qemu_system_reset_request();
446 static uint32_t port92_read(void *opaque, uint32_t addr)
448 Port92State *s = opaque;
452 DPRINTF("port92: read 0x%02x\n", ret);
456 static void port92_init(ISADevice *dev, qemu_irq *a20_out)
458 Port92State *s = DO_UPCAST(Port92State, dev, dev);
460 s->a20_out = a20_out;
463 static const VMStateDescription vmstate_port92_isa = {
466 .minimum_version_id = 1,
467 .minimum_version_id_old = 1,
468 .fields = (VMStateField []) {
469 VMSTATE_UINT8(outport, Port92State),
470 VMSTATE_END_OF_LIST()
474 static void port92_reset(DeviceState *d)
476 Port92State *s = container_of(d, Port92State, dev.qdev);
481 static int port92_initfn(ISADevice *dev)
483 Port92State *s = DO_UPCAST(Port92State, dev, dev);
485 register_ioport_read(0x92, 1, 1, port92_read, s);
486 register_ioport_write(0x92, 1, 1, port92_write, s);
487 isa_init_ioport(dev, 0x92);
492 static ISADeviceInfo port92_info = {
493 .qdev.name = "port92",
494 .qdev.size = sizeof(Port92State),
495 .qdev.vmsd = &vmstate_port92_isa,
497 .qdev.reset = port92_reset,
498 .init = port92_initfn,
501 static void port92_register(void)
503 isa_qdev_register(&port92_info);
505 device_init(port92_register)
507 static void handle_a20_line_change(void *opaque, int irq, int level)
509 CPUState *cpu = opaque;
511 /* XXX: send to all CPUs ? */
512 /* XXX: add logic to handle multiple A20 line sources */
513 cpu_x86_set_a20(cpu, level);
516 /***********************************************************/
517 /* Bochs BIOS debug ports */
519 static void bochs_bios_write(void *opaque, uint32_t addr, uint32_t val)
521 static const char shutdown_str[8] = "Shutdown";
522 static int shutdown_index = 0;
525 /* Bochs BIOS messages */
528 /* used to be panic, now unused */
533 fprintf(stderr, "%c", val);
537 /* same as Bochs power off */
538 if (val == shutdown_str[shutdown_index]) {
540 if (shutdown_index == 8) {
542 qemu_system_shutdown_request();
549 /* LGPL'ed VGA BIOS messages */
552 fprintf(stderr, "VGA BIOS panic, line %d\n", val);
557 fprintf(stderr, "%c", val);
563 int e820_add_entry(uint64_t address, uint64_t length, uint32_t type)
565 int index = le32_to_cpu(e820_table.count);
566 struct e820_entry *entry;
568 if (index >= E820_NR_ENTRIES)
570 entry = &e820_table.entry[index++];
572 entry->address = cpu_to_le64(address);
573 entry->length = cpu_to_le64(length);
574 entry->type = cpu_to_le32(type);
576 e820_table.count = cpu_to_le32(index);
580 static void *bochs_bios_init(void)
583 uint8_t *smbios_table;
585 uint64_t *numa_fw_cfg;
588 register_ioport_write(0x400, 1, 2, bochs_bios_write, NULL);
589 register_ioport_write(0x401, 1, 2, bochs_bios_write, NULL);
590 register_ioport_write(0x402, 1, 1, bochs_bios_write, NULL);
591 register_ioport_write(0x403, 1, 1, bochs_bios_write, NULL);
592 register_ioport_write(0x8900, 1, 1, bochs_bios_write, NULL);
594 register_ioport_write(0x501, 1, 2, bochs_bios_write, NULL);
595 register_ioport_write(0x502, 1, 2, bochs_bios_write, NULL);
596 register_ioport_write(0x500, 1, 1, bochs_bios_write, NULL);
597 register_ioport_write(0x503, 1, 1, bochs_bios_write, NULL);
599 fw_cfg = fw_cfg_init(BIOS_CFG_IOPORT, BIOS_CFG_IOPORT + 1, 0, 0);
601 fw_cfg_add_i32(fw_cfg, FW_CFG_ID, 1);
602 fw_cfg_add_i64(fw_cfg, FW_CFG_RAM_SIZE, (uint64_t)ram_size);
603 fw_cfg_add_bytes(fw_cfg, FW_CFG_ACPI_TABLES, (uint8_t *)acpi_tables,
605 fw_cfg_add_bytes(fw_cfg, FW_CFG_IRQ0_OVERRIDE, &irq0override, 1);
607 smbios_table = smbios_get_table(&smbios_len);
609 fw_cfg_add_bytes(fw_cfg, FW_CFG_SMBIOS_ENTRIES,
610 smbios_table, smbios_len);
611 fw_cfg_add_bytes(fw_cfg, FW_CFG_E820_TABLE, (uint8_t *)&e820_table,
612 sizeof(struct e820_table));
614 fw_cfg_add_bytes(fw_cfg, FW_CFG_HPET, (uint8_t *)&hpet_cfg,
615 sizeof(struct hpet_fw_config));
616 /* allocate memory for the NUMA channel: one (64bit) word for the number
617 * of nodes, one word for each VCPU->node and one word for each node to
618 * hold the amount of memory.
620 numa_fw_cfg = qemu_mallocz((1 + smp_cpus + nb_numa_nodes) * 8);
621 numa_fw_cfg[0] = cpu_to_le64(nb_numa_nodes);
622 for (i = 0; i < smp_cpus; i++) {
623 for (j = 0; j < nb_numa_nodes; j++) {
624 if (node_cpumask[j] & (1 << i)) {
625 numa_fw_cfg[i + 1] = cpu_to_le64(j);
630 for (i = 0; i < nb_numa_nodes; i++) {
631 numa_fw_cfg[smp_cpus + 1 + i] = cpu_to_le64(node_mem[i]);
633 fw_cfg_add_bytes(fw_cfg, FW_CFG_NUMA, (uint8_t *)numa_fw_cfg,
634 (1 + smp_cpus + nb_numa_nodes) * 8);
639 static long get_file_size(FILE *f)
643 /* XXX: on Unix systems, using fstat() probably makes more sense */
646 fseek(f, 0, SEEK_END);
648 fseek(f, where, SEEK_SET);
653 static void load_linux(void *fw_cfg,
654 const char *kernel_filename,
655 const char *initrd_filename,
656 const char *kernel_cmdline,
657 target_phys_addr_t max_ram_size)
660 int setup_size, kernel_size, initrd_size = 0, cmdline_size;
662 uint8_t header[8192], *setup, *kernel, *initrd_data;
663 target_phys_addr_t real_addr, prot_addr, cmdline_addr, initrd_addr = 0;
667 /* Align to 16 bytes as a paranoia measure */
668 cmdline_size = (strlen(kernel_cmdline)+16) & ~15;
670 /* load the kernel header */
671 f = fopen(kernel_filename, "rb");
672 if (!f || !(kernel_size = get_file_size(f)) ||
673 fread(header, 1, MIN(ARRAY_SIZE(header), kernel_size), f) !=
674 MIN(ARRAY_SIZE(header), kernel_size)) {
675 fprintf(stderr, "qemu: could not load kernel '%s': %s\n",
676 kernel_filename, strerror(errno));
680 /* kernel protocol version */
682 fprintf(stderr, "header magic: %#x\n", ldl_p(header+0x202));
684 if (ldl_p(header+0x202) == 0x53726448)
685 protocol = lduw_p(header+0x206);
687 /* This looks like a multiboot kernel. If it is, let's stop
688 treating it like a Linux kernel. */
689 if (load_multiboot(fw_cfg, f, kernel_filename, initrd_filename,
690 kernel_cmdline, kernel_size, header))
695 if (protocol < 0x200 || !(header[0x211] & 0x01)) {
698 cmdline_addr = 0x9a000 - cmdline_size;
700 } else if (protocol < 0x202) {
701 /* High but ancient kernel */
703 cmdline_addr = 0x9a000 - cmdline_size;
704 prot_addr = 0x100000;
706 /* High and recent kernel */
708 cmdline_addr = 0x20000;
709 prot_addr = 0x100000;
714 "qemu: real_addr = 0x" TARGET_FMT_plx "\n"
715 "qemu: cmdline_addr = 0x" TARGET_FMT_plx "\n"
716 "qemu: prot_addr = 0x" TARGET_FMT_plx "\n",
722 /* highest address for loading the initrd */
723 if (protocol >= 0x203)
724 initrd_max = ldl_p(header+0x22c);
726 initrd_max = 0x37ffffff;
728 if (initrd_max >= max_ram_size-ACPI_DATA_SIZE)
729 initrd_max = max_ram_size-ACPI_DATA_SIZE-1;
731 fw_cfg_add_i32(fw_cfg, FW_CFG_CMDLINE_ADDR, cmdline_addr);
732 fw_cfg_add_i32(fw_cfg, FW_CFG_CMDLINE_SIZE, strlen(kernel_cmdline)+1);
733 fw_cfg_add_bytes(fw_cfg, FW_CFG_CMDLINE_DATA,
734 (uint8_t*)strdup(kernel_cmdline),
735 strlen(kernel_cmdline)+1);
737 if (protocol >= 0x202) {
738 stl_p(header+0x228, cmdline_addr);
740 stw_p(header+0x20, 0xA33F);
741 stw_p(header+0x22, cmdline_addr-real_addr);
744 /* handle vga= parameter */
745 vmode = strstr(kernel_cmdline, "vga=");
747 unsigned int video_mode;
750 if (!strncmp(vmode, "normal", 6)) {
752 } else if (!strncmp(vmode, "ext", 3)) {
754 } else if (!strncmp(vmode, "ask", 3)) {
757 video_mode = strtol(vmode, NULL, 0);
759 stw_p(header+0x1fa, video_mode);
763 /* High nybble = B reserved for Qemu; low nybble is revision number.
764 If this code is substantially changed, you may want to consider
765 incrementing the revision. */
766 if (protocol >= 0x200)
767 header[0x210] = 0xB0;
770 if (protocol >= 0x201) {
771 header[0x211] |= 0x80; /* CAN_USE_HEAP */
772 stw_p(header+0x224, cmdline_addr-real_addr-0x200);
776 if (initrd_filename) {
777 if (protocol < 0x200) {
778 fprintf(stderr, "qemu: linux kernel too old to load a ram disk\n");
782 initrd_size = get_image_size(initrd_filename);
783 if (initrd_size < 0) {
784 fprintf(stderr, "qemu: error reading initrd %s\n",
789 initrd_addr = (initrd_max-initrd_size) & ~4095;
791 initrd_data = qemu_malloc(initrd_size);
792 load_image(initrd_filename, initrd_data);
794 fw_cfg_add_i32(fw_cfg, FW_CFG_INITRD_ADDR, initrd_addr);
795 fw_cfg_add_i32(fw_cfg, FW_CFG_INITRD_SIZE, initrd_size);
796 fw_cfg_add_bytes(fw_cfg, FW_CFG_INITRD_DATA, initrd_data, initrd_size);
798 stl_p(header+0x218, initrd_addr);
799 stl_p(header+0x21c, initrd_size);
802 /* load kernel and setup */
803 setup_size = header[0x1f1];
806 setup_size = (setup_size+1)*512;
807 kernel_size -= setup_size;
809 setup = qemu_malloc(setup_size);
810 kernel = qemu_malloc(kernel_size);
811 fseek(f, 0, SEEK_SET);
812 if (fread(setup, 1, setup_size, f) != setup_size) {
813 fprintf(stderr, "fread() failed\n");
816 if (fread(kernel, 1, kernel_size, f) != kernel_size) {
817 fprintf(stderr, "fread() failed\n");
821 memcpy(setup, header, MIN(sizeof(header), setup_size));
823 fw_cfg_add_i32(fw_cfg, FW_CFG_KERNEL_ADDR, prot_addr);
824 fw_cfg_add_i32(fw_cfg, FW_CFG_KERNEL_SIZE, kernel_size);
825 fw_cfg_add_bytes(fw_cfg, FW_CFG_KERNEL_DATA, kernel, kernel_size);
827 fw_cfg_add_i32(fw_cfg, FW_CFG_SETUP_ADDR, real_addr);
828 fw_cfg_add_i32(fw_cfg, FW_CFG_SETUP_SIZE, setup_size);
829 fw_cfg_add_bytes(fw_cfg, FW_CFG_SETUP_DATA, setup, setup_size);
831 option_rom[nb_option_roms].name = "linuxboot.bin";
832 option_rom[nb_option_roms].bootindex = 0;
836 #define NE2000_NB_MAX 6
838 static const int ne2000_io[NE2000_NB_MAX] = { 0x300, 0x320, 0x340, 0x360,
840 static const int ne2000_irq[NE2000_NB_MAX] = { 9, 10, 11, 3, 4, 5 };
842 static const int parallel_io[MAX_PARALLEL_PORTS] = { 0x378, 0x278, 0x3bc };
843 static const int parallel_irq[MAX_PARALLEL_PORTS] = { 7, 7, 7 };
845 void pc_init_ne2k_isa(NICInfo *nd)
847 static int nb_ne2k = 0;
849 if (nb_ne2k == NE2000_NB_MAX)
851 isa_ne2000_init(ne2000_io[nb_ne2k],
852 ne2000_irq[nb_ne2k], nd);
856 int cpu_is_bsp(CPUState *env)
858 /* We hard-wire the BSP to the first CPU. */
859 return env->cpu_index == 0;
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)
875 static int apic_mapped;
877 dev = qdev_create(NULL, "apic");
878 qdev_prop_set_uint8(dev, "id", apic_id);
879 qdev_prop_set_ptr(dev, "cpu_env", env);
880 qdev_init_nofail(dev);
881 d = sysbus_from_qdev(dev);
883 /* XXX: mapping more APICs at the same memory location */
884 if (apic_mapped == 0) {
885 /* NOTE: the APIC is directly connected to the CPU - it is not
886 on the global memory bus. */
887 /* XXX: what if the base changes? */
888 sysbus_mmio_map(d, 0, MSI_ADDR_BASE);
897 /* set CMOS shutdown status register (index 0xF) as S3_resume(0xFE)
898 BIOS will read it and start S3 resume at POST Entry */
899 void pc_cmos_set_s3_resume(void *opaque, int irq, int level)
901 ISADevice *s = opaque;
904 rtc_set_memory(s, 0xF, 0xFE);
908 void pc_acpi_smi_interrupt(void *opaque, int irq, int level)
910 CPUState *s = opaque;
913 cpu_interrupt(s, CPU_INTERRUPT_SMI);
917 static void pc_cpu_reset(void *opaque)
919 CPUState *env = opaque;
922 env->halted = !cpu_is_bsp(env);
925 static CPUState *pc_new_cpu(const char *cpu_model)
929 env = cpu_init(cpu_model);
931 fprintf(stderr, "Unable to find x86 CPU definition\n");
934 if ((env->cpuid_features & CPUID_APIC) || smp_cpus > 1) {
935 env->cpuid_apic_id = env->cpu_index;
936 env->apic_state = apic_init(env, env->cpuid_apic_id);
938 qemu_register_reset(pc_cpu_reset, env);
943 void pc_cpus_init(const char *cpu_model)
948 if (cpu_model == NULL) {
950 cpu_model = "qemu64";
952 cpu_model = "qemu32";
956 for(i = 0; i < smp_cpus; i++) {
957 pc_new_cpu(cpu_model);
961 void pc_memory_init(MemoryRegion *system_memory,
962 const char *kernel_filename,
963 const char *kernel_cmdline,
964 const char *initrd_filename,
965 ram_addr_t below_4g_mem_size,
966 ram_addr_t above_4g_mem_size)
969 int ret, linux_boot, i;
970 MemoryRegion *ram, *bios, *isa_bios, *option_rom_mr;
971 MemoryRegion *ram_below_4g, *ram_above_4g;
972 int bios_size, isa_bios_size;
975 linux_boot = (kernel_filename != NULL);
977 /* Allocate RAM. We allocate it as a single memory region and use
978 * aliases to address portions of it, mostly for backwards compatiblity
979 * with older qemus that used qemu_ram_alloc().
981 ram = qemu_malloc(sizeof(*ram));
982 memory_region_init_ram(ram, NULL, "pc.ram",
983 below_4g_mem_size + above_4g_mem_size);
984 ram_below_4g = qemu_malloc(sizeof(*ram_below_4g));
985 memory_region_init_alias(ram_below_4g, "ram-below-4g", ram,
986 0, below_4g_mem_size);
987 memory_region_add_subregion(system_memory, 0, ram_below_4g);
988 if (above_4g_mem_size > 0) {
989 ram_above_4g = qemu_malloc(sizeof(*ram_above_4g));
990 memory_region_init_alias(ram_above_4g, "ram-above-4g", ram,
991 below_4g_mem_size, above_4g_mem_size);
992 memory_region_add_subregion(system_memory, 0x100000000ULL,
997 if (bios_name == NULL)
998 bios_name = BIOS_FILENAME;
999 filename = qemu_find_file(QEMU_FILE_TYPE_BIOS, bios_name);
1001 bios_size = get_image_size(filename);
1005 if (bios_size <= 0 ||
1006 (bios_size % 65536) != 0) {
1009 bios = qemu_malloc(sizeof(*bios));
1010 memory_region_init_ram(bios, NULL, "pc.bios", bios_size);
1011 memory_region_set_readonly(bios, true);
1012 ret = rom_add_file_fixed(bios_name, (uint32_t)(-bios_size), -1);
1015 fprintf(stderr, "qemu: could not load PC BIOS '%s'\n", bios_name);
1019 qemu_free(filename);
1021 /* map the last 128KB of the BIOS in ISA space */
1022 isa_bios_size = bios_size;
1023 if (isa_bios_size > (128 * 1024))
1024 isa_bios_size = 128 * 1024;
1025 isa_bios = qemu_malloc(sizeof(*isa_bios));
1026 memory_region_init_alias(isa_bios, "isa-bios", bios,
1027 bios_size - isa_bios_size, isa_bios_size);
1028 memory_region_add_subregion_overlap(system_memory,
1029 0x100000 - isa_bios_size,
1032 memory_region_set_readonly(isa_bios, true);
1034 option_rom_mr = qemu_malloc(sizeof(*option_rom_mr));
1035 memory_region_init_ram(option_rom_mr, NULL, "pc.rom", PC_ROM_SIZE);
1036 memory_region_add_subregion_overlap(system_memory,
1041 /* map all the bios at the top of memory */
1042 memory_region_add_subregion(system_memory,
1043 (uint32_t)(-bios_size),
1046 fw_cfg = bochs_bios_init();
1050 load_linux(fw_cfg, kernel_filename, initrd_filename, kernel_cmdline, below_4g_mem_size);
1053 for (i = 0; i < nb_option_roms; i++) {
1054 rom_add_option(option_rom[i].name, option_rom[i].bootindex);
1058 qemu_irq *pc_allocate_cpu_irq(void)
1060 return qemu_allocate_irqs(pic_irq_request, NULL, 1);
1063 void pc_vga_init(PCIBus *pci_bus)
1065 if (cirrus_vga_enabled) {
1067 pci_cirrus_vga_init(pci_bus);
1069 isa_cirrus_vga_init();
1071 } else if (vmsvga_enabled) {
1073 if (!pci_vmsvga_init(pci_bus)) {
1074 fprintf(stderr, "Warning: vmware_vga not available,"
1075 " using standard VGA instead\n");
1076 pci_vga_init(pci_bus);
1079 fprintf(stderr, "%s: vmware_vga: no PCI bus\n", __FUNCTION__);
1082 } else if (qxl_enabled) {
1084 pci_create_simple(pci_bus, -1, "qxl-vga");
1086 fprintf(stderr, "%s: qxl: no PCI bus\n", __FUNCTION__);
1088 } else if (std_vga_enabled) {
1090 pci_vga_init(pci_bus);
1097 * sga does not suppress normal vga output. So a machine can have both a
1098 * vga card and sga manually enabled. Output will be seen on both.
1099 * For nographic case, sga is enabled at all times
1101 if (display_type == DT_NOGRAPHIC) {
1102 isa_create_simple("sga");
1106 static void cpu_request_exit(void *opaque, int irq, int level)
1108 CPUState *env = cpu_single_env;
1115 void pc_basic_device_init(qemu_irq *isa_irq,
1116 ISADevice **rtc_state,
1120 DriveInfo *fd[MAX_FD];
1121 qemu_irq rtc_irq = NULL;
1123 ISADevice *i8042, *port92, *vmmouse, *pit;
1124 qemu_irq *cpu_exit_irq;
1126 register_ioport_write(0x80, 1, 1, ioport80_write, NULL);
1128 register_ioport_write(0xf0, 1, 1, ioportF0_write, NULL);
1131 DeviceState *hpet = sysbus_try_create_simple("hpet", HPET_BASE, NULL);
1134 for (i = 0; i < 24; i++) {
1135 sysbus_connect_irq(sysbus_from_qdev(hpet), i, isa_irq[i]);
1137 rtc_irq = qdev_get_gpio_in(hpet, 0);
1140 *rtc_state = rtc_init(2000, rtc_irq);
1142 qemu_register_boot_set(pc_boot_set, *rtc_state);
1144 pit = pit_init(0x40, 0);
1147 for(i = 0; i < MAX_SERIAL_PORTS; i++) {
1148 if (serial_hds[i]) {
1149 serial_isa_init(i, serial_hds[i]);
1153 for(i = 0; i < MAX_PARALLEL_PORTS; i++) {
1154 if (parallel_hds[i]) {
1155 parallel_init(i, parallel_hds[i]);
1159 a20_line = qemu_allocate_irqs(handle_a20_line_change, first_cpu, 2);
1160 i8042 = isa_create_simple("i8042");
1161 i8042_setup_a20_line(i8042, &a20_line[0]);
1164 vmmouse = isa_try_create("vmmouse");
1169 qdev_prop_set_ptr(&vmmouse->qdev, "ps2_mouse", i8042);
1170 qdev_init_nofail(&vmmouse->qdev);
1172 port92 = isa_create_simple("port92");
1173 port92_init(port92, &a20_line[1]);
1175 cpu_exit_irq = qemu_allocate_irqs(cpu_request_exit, NULL, 1);
1176 DMA_init(0, cpu_exit_irq);
1178 for(i = 0; i < MAX_FD; i++) {
1179 fd[i] = drive_get(IF_FLOPPY, 0, i);
1181 fdctrl_init_isa(fd);
1184 void pc_pci_device_init(PCIBus *pci_bus)
1189 max_bus = drive_get_max_bus(IF_SCSI);
1190 for (bus = 0; bus <= max_bus; bus++) {
1191 pci_create_simple(pci_bus, -1, "lsi53c895a");