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 /* Leave a chunk of memory at the top of RAM for the BIOS ACPI tables. */
43 #define ACPI_DATA_SIZE 0x10000
47 static fdctrl_t
*floppy_controller
;
48 static RTCState
*rtc_state
;
50 static IOAPICState
*ioapic
;
51 static PCIDevice
*i440fx_state
;
53 static void ioport80_write(void *opaque
, uint32_t addr
, uint32_t data
)
57 /* MSDOS compatibility mode FPU exception support */
58 static qemu_irq ferr_irq
;
59 /* XXX: add IGNNE support */
60 void cpu_set_ferr(CPUX86State
*s
)
62 qemu_irq_raise(ferr_irq
);
65 static void ioportF0_write(void *opaque
, uint32_t addr
, uint32_t data
)
67 qemu_irq_lower(ferr_irq
);
71 uint64_t cpu_get_tsc(CPUX86State
*env
)
73 /* Note: when using kqemu, it is more logical to return the host TSC
74 because kqemu does not trap the RDTSC instruction for
75 performance reasons */
77 if (env
->kqemu_enabled
) {
78 return cpu_get_real_ticks();
82 return cpu_get_ticks();
87 void cpu_smm_update(CPUState
*env
)
89 if (i440fx_state
&& env
== first_cpu
)
90 i440fx_set_smm(i440fx_state
, (env
->hflags
>> HF_SMM_SHIFT
) & 1);
95 int cpu_get_pic_interrupt(CPUState
*env
)
99 intno
= apic_get_interrupt(env
);
101 /* set irq request if a PIC irq is still pending */
102 /* XXX: improve that */
103 pic_update_irq(isa_pic
);
106 /* read the irq from the PIC */
107 if (!apic_accept_pic_intr(env
))
110 intno
= pic_read_irq(isa_pic
);
114 static void pic_irq_request(void *opaque
, int irq
, int level
)
116 CPUState
*env
= opaque
;
117 if (level
&& apic_accept_pic_intr(env
))
118 cpu_interrupt(env
, CPU_INTERRUPT_HARD
);
121 /* PC cmos mappings */
123 #define REG_EQUIPMENT_BYTE 0x14
125 static int cmos_get_fd_drive_type(int fd0
)
131 /* 1.44 Mb 3"5 drive */
135 /* 2.88 Mb 3"5 drive */
139 /* 1.2 Mb 5"5 drive */
149 static void cmos_init_hd(int type_ofs
, int info_ofs
, BlockDriverState
*hd
)
151 RTCState
*s
= rtc_state
;
152 int cylinders
, heads
, sectors
;
153 bdrv_get_geometry_hint(hd
, &cylinders
, &heads
, §ors
);
154 rtc_set_memory(s
, type_ofs
, 47);
155 rtc_set_memory(s
, info_ofs
, cylinders
);
156 rtc_set_memory(s
, info_ofs
+ 1, cylinders
>> 8);
157 rtc_set_memory(s
, info_ofs
+ 2, heads
);
158 rtc_set_memory(s
, info_ofs
+ 3, 0xff);
159 rtc_set_memory(s
, info_ofs
+ 4, 0xff);
160 rtc_set_memory(s
, info_ofs
+ 5, 0xc0 | ((heads
> 8) << 3));
161 rtc_set_memory(s
, info_ofs
+ 6, cylinders
);
162 rtc_set_memory(s
, info_ofs
+ 7, cylinders
>> 8);
163 rtc_set_memory(s
, info_ofs
+ 8, sectors
);
166 /* convert boot_device letter to something recognizable by the bios */
167 static int boot_device2nibble(char boot_device
)
169 switch(boot_device
) {
172 return 0x01; /* floppy boot */
174 return 0x02; /* hard drive boot */
176 return 0x03; /* CD-ROM boot */
178 return 0x04; /* Network boot */
183 /* hd_table must contain 4 block drivers */
184 static void cmos_init(int ram_size
, const char *boot_device
, BlockDriverState
**hd_table
)
186 RTCState
*s
= rtc_state
;
187 int nbds
, bds
[3] = { 0, };
192 /* various important CMOS locations needed by PC/Bochs bios */
195 val
= 640; /* base memory in K */
196 rtc_set_memory(s
, 0x15, val
);
197 rtc_set_memory(s
, 0x16, val
>> 8);
199 val
= (ram_size
/ 1024) - 1024;
202 rtc_set_memory(s
, 0x17, val
);
203 rtc_set_memory(s
, 0x18, val
>> 8);
204 rtc_set_memory(s
, 0x30, val
);
205 rtc_set_memory(s
, 0x31, val
>> 8);
207 if (ram_size
> (16 * 1024 * 1024))
208 val
= (ram_size
/ 65536) - ((16 * 1024 * 1024) / 65536);
213 rtc_set_memory(s
, 0x34, val
);
214 rtc_set_memory(s
, 0x35, val
>> 8);
216 /* set boot devices, and disable floppy signature check if requested */
217 #define PC_MAX_BOOT_DEVICES 3
218 nbds
= strlen(boot_device
);
219 if (nbds
> PC_MAX_BOOT_DEVICES
) {
220 fprintf(stderr
, "Too many boot devices for PC\n");
223 for (i
= 0; i
< nbds
; i
++) {
224 bds
[i
] = boot_device2nibble(boot_device
[i
]);
226 fprintf(stderr
, "Invalid boot device for PC: '%c'\n",
231 rtc_set_memory(s
, 0x3d, (bds
[1] << 4) | bds
[0]);
232 rtc_set_memory(s
, 0x38, (bds
[2] << 4) | (fd_bootchk
? 0x0 : 0x1));
236 fd0
= fdctrl_get_drive_type(floppy_controller
, 0);
237 fd1
= fdctrl_get_drive_type(floppy_controller
, 1);
239 val
= (cmos_get_fd_drive_type(fd0
) << 4) | cmos_get_fd_drive_type(fd1
);
240 rtc_set_memory(s
, 0x10, val
);
252 val
|= 0x01; /* 1 drive, ready for boot */
255 val
|= 0x41; /* 2 drives, ready for boot */
258 val
|= 0x02; /* FPU is there */
259 val
|= 0x04; /* PS/2 mouse installed */
260 rtc_set_memory(s
, REG_EQUIPMENT_BYTE
, val
);
264 rtc_set_memory(s
, 0x12, (hd_table
[0] ? 0xf0 : 0) | (hd_table
[1] ? 0x0f : 0));
266 cmos_init_hd(0x19, 0x1b, hd_table
[0]);
268 cmos_init_hd(0x1a, 0x24, hd_table
[1]);
271 for (i
= 0; i
< 4; i
++) {
273 int cylinders
, heads
, sectors
, translation
;
274 /* NOTE: bdrv_get_geometry_hint() returns the physical
275 geometry. It is always such that: 1 <= sects <= 63, 1
276 <= heads <= 16, 1 <= cylinders <= 16383. The BIOS
277 geometry can be different if a translation is done. */
278 translation
= bdrv_get_translation_hint(hd_table
[i
]);
279 if (translation
== BIOS_ATA_TRANSLATION_AUTO
) {
280 bdrv_get_geometry_hint(hd_table
[i
], &cylinders
, &heads
, §ors
);
281 if (cylinders
<= 1024 && heads
<= 16 && sectors
<= 63) {
282 /* No translation. */
285 /* LBA translation. */
291 val
|= translation
<< (i
* 2);
294 rtc_set_memory(s
, 0x39, val
);
297 void ioport_set_a20(int enable
)
299 /* XXX: send to all CPUs ? */
300 cpu_x86_set_a20(first_cpu
, enable
);
303 int ioport_get_a20(void)
305 return ((first_cpu
->a20_mask
>> 20) & 1);
308 static void ioport92_write(void *opaque
, uint32_t addr
, uint32_t val
)
310 ioport_set_a20((val
>> 1) & 1);
311 /* XXX: bit 0 is fast reset */
314 static uint32_t ioport92_read(void *opaque
, uint32_t addr
)
316 return ioport_get_a20() << 1;
319 /***********************************************************/
320 /* Bochs BIOS debug ports */
322 static void bochs_bios_write(void *opaque
, uint32_t addr
, uint32_t val
)
324 static const char shutdown_str
[8] = "Shutdown";
325 static int shutdown_index
= 0;
328 /* Bochs BIOS messages */
331 fprintf(stderr
, "BIOS panic at rombios.c, line %d\n", val
);
336 fprintf(stderr
, "%c", val
);
340 /* same as Bochs power off */
341 if (val
== shutdown_str
[shutdown_index
]) {
343 if (shutdown_index
== 8) {
345 qemu_system_shutdown_request();
352 /* LGPL'ed VGA BIOS messages */
355 fprintf(stderr
, "VGA BIOS panic, line %d\n", val
);
360 fprintf(stderr
, "%c", val
);
366 static void bochs_bios_init(void)
368 register_ioport_write(0x400, 1, 2, bochs_bios_write
, NULL
);
369 register_ioport_write(0x401, 1, 2, bochs_bios_write
, NULL
);
370 register_ioport_write(0x402, 1, 1, bochs_bios_write
, NULL
);
371 register_ioport_write(0x403, 1, 1, bochs_bios_write
, NULL
);
372 register_ioport_write(0x8900, 1, 1, bochs_bios_write
, NULL
);
374 register_ioport_write(0x501, 1, 2, bochs_bios_write
, NULL
);
375 register_ioport_write(0x502, 1, 2, bochs_bios_write
, NULL
);
376 register_ioport_write(0x500, 1, 1, bochs_bios_write
, NULL
);
377 register_ioport_write(0x503, 1, 1, bochs_bios_write
, NULL
);
380 /* Generate an initial boot sector which sets state and jump to
381 a specified vector */
382 static void generate_bootsect(uint32_t gpr
[8], uint16_t segs
[6], uint16_t ip
)
384 uint8_t bootsect
[512], *p
;
388 hda
= drive_get_index(IF_IDE
, 0, 0);
390 fprintf(stderr
, "A disk image must be given for 'hda' when booting "
395 memset(bootsect
, 0, sizeof(bootsect
));
397 /* Copy the MSDOS partition table if possible */
398 bdrv_read(drives_table
[hda
].bdrv
, 0, bootsect
, 1);
400 /* Make sure we have a partition signature */
401 bootsect
[510] = 0x55;
402 bootsect
[511] = 0xaa;
406 *p
++ = 0xfa; /* CLI */
407 *p
++ = 0xfc; /* CLD */
409 for (i
= 0; i
< 6; i
++) {
410 if (i
== 1) /* Skip CS */
413 *p
++ = 0xb8; /* MOV AX,imm16 */
416 *p
++ = 0x8e; /* MOV <seg>,AX */
417 *p
++ = 0xc0 + (i
<< 3);
420 for (i
= 0; i
< 8; i
++) {
421 *p
++ = 0x66; /* 32-bit operand size */
422 *p
++ = 0xb8 + i
; /* MOV <reg>,imm32 */
429 *p
++ = 0xea; /* JMP FAR */
432 *p
++ = segs
[1]; /* CS */
435 bdrv_set_boot_sector(drives_table
[hda
].bdrv
, bootsect
, sizeof(bootsect
));
438 static int load_kernel(const char *filename
, uint8_t *addr
,
444 fd
= open(filename
, O_RDONLY
| O_BINARY
);
448 /* load 16 bit code */
449 if (read(fd
, real_addr
, 512) != 512)
451 setup_sects
= real_addr
[0x1F1];
454 if (read(fd
, real_addr
+ 512, setup_sects
* 512) !=
458 /* load 32 bit code */
459 size
= read(fd
, addr
, 16 * 1024 * 1024);
469 static long get_file_size(FILE *f
)
473 /* XXX: on Unix systems, using fstat() probably makes more sense */
476 fseek(f
, 0, SEEK_END
);
478 fseek(f
, where
, SEEK_SET
);
483 static void load_linux(const char *kernel_filename
,
484 const char *initrd_filename
,
485 const char *kernel_cmdline
)
491 int setup_size
, kernel_size
, initrd_size
, cmdline_size
;
493 uint8_t header
[1024];
494 uint8_t *real_addr
, *prot_addr
, *cmdline_addr
, *initrd_addr
;
497 /* Align to 16 bytes as a paranoia measure */
498 cmdline_size
= (strlen(kernel_cmdline
)+16) & ~15;
500 /* load the kernel header */
501 f
= fopen(kernel_filename
, "rb");
502 if (!f
|| !(kernel_size
= get_file_size(f
)) ||
503 fread(header
, 1, 1024, f
) != 1024) {
504 fprintf(stderr
, "qemu: could not load kernel '%s'\n",
509 /* kernel protocol version */
511 fprintf(stderr
, "header magic: %#x\n", ldl_p(header
+0x202));
513 if (ldl_p(header
+0x202) == 0x53726448)
514 protocol
= lduw_p(header
+0x206);
518 if (protocol
< 0x200 || !(header
[0x211] & 0x01)) {
520 real_addr
= phys_ram_base
+ 0x90000;
521 cmdline_addr
= phys_ram_base
+ 0x9a000 - cmdline_size
;
522 prot_addr
= phys_ram_base
+ 0x10000;
523 } else if (protocol
< 0x202) {
524 /* High but ancient kernel */
525 real_addr
= phys_ram_base
+ 0x90000;
526 cmdline_addr
= phys_ram_base
+ 0x9a000 - cmdline_size
;
527 prot_addr
= phys_ram_base
+ 0x100000;
529 /* High and recent kernel */
530 real_addr
= phys_ram_base
+ 0x10000;
531 cmdline_addr
= phys_ram_base
+ 0x20000;
532 prot_addr
= phys_ram_base
+ 0x100000;
537 "qemu: real_addr = %#zx\n"
538 "qemu: cmdline_addr = %#zx\n"
539 "qemu: prot_addr = %#zx\n",
540 real_addr
-phys_ram_base
,
541 cmdline_addr
-phys_ram_base
,
542 prot_addr
-phys_ram_base
);
545 /* highest address for loading the initrd */
546 if (protocol
>= 0x203)
547 initrd_max
= ldl_p(header
+0x22c);
549 initrd_max
= 0x37ffffff;
551 if (initrd_max
>= ram_size
-ACPI_DATA_SIZE
)
552 initrd_max
= ram_size
-ACPI_DATA_SIZE
-1;
554 /* kernel command line */
555 pstrcpy((char*)cmdline_addr
, 4096, kernel_cmdline
);
557 if (protocol
>= 0x202) {
558 stl_p(header
+0x228, cmdline_addr
-phys_ram_base
);
560 stw_p(header
+0x20, 0xA33F);
561 stw_p(header
+0x22, cmdline_addr
-real_addr
);
565 /* High nybble = B reserved for Qemu; low nybble is revision number.
566 If this code is substantially changed, you may want to consider
567 incrementing the revision. */
568 if (protocol
>= 0x200)
569 header
[0x210] = 0xB0;
572 if (protocol
>= 0x201) {
573 header
[0x211] |= 0x80; /* CAN_USE_HEAP */
574 stw_p(header
+0x224, cmdline_addr
-real_addr
-0x200);
578 if (initrd_filename
) {
579 if (protocol
< 0x200) {
580 fprintf(stderr
, "qemu: linux kernel too old to load a ram disk\n");
584 fi
= fopen(initrd_filename
, "rb");
586 fprintf(stderr
, "qemu: could not load initial ram disk '%s'\n",
591 initrd_size
= get_file_size(fi
);
592 initrd_addr
= phys_ram_base
+ ((initrd_max
-initrd_size
) & ~4095);
594 fprintf(stderr
, "qemu: loading initrd (%#x bytes) at %#zx\n",
595 initrd_size
, initrd_addr
-phys_ram_base
);
597 if (fread(initrd_addr
, 1, initrd_size
, fi
) != initrd_size
) {
598 fprintf(stderr
, "qemu: read error on initial ram disk '%s'\n",
604 stl_p(header
+0x218, initrd_addr
-phys_ram_base
);
605 stl_p(header
+0x21c, initrd_size
);
608 /* store the finalized header and load the rest of the kernel */
609 memcpy(real_addr
, header
, 1024);
611 setup_size
= header
[0x1f1];
615 setup_size
= (setup_size
+1)*512;
616 kernel_size
-= setup_size
; /* Size of protected-mode code */
618 if (fread(real_addr
+1024, 1, setup_size
-1024, f
) != setup_size
-1024 ||
619 fread(prot_addr
, 1, kernel_size
, f
) != kernel_size
) {
620 fprintf(stderr
, "qemu: read error on kernel '%s'\n",
626 /* generate bootsector to set up the initial register state */
627 real_seg
= (real_addr
-phys_ram_base
) >> 4;
628 seg
[0] = seg
[2] = seg
[3] = seg
[4] = seg
[4] = real_seg
;
629 seg
[1] = real_seg
+0x20; /* CS */
630 memset(gpr
, 0, sizeof gpr
);
631 gpr
[4] = cmdline_addr
-real_addr
-16; /* SP (-16 is paranoia) */
633 generate_bootsect(gpr
, seg
, 0);
636 static void main_cpu_reset(void *opaque
)
638 CPUState
*env
= opaque
;
642 static const int ide_iobase
[2] = { 0x1f0, 0x170 };
643 static const int ide_iobase2
[2] = { 0x3f6, 0x376 };
644 static const int ide_irq
[2] = { 14, 15 };
646 #define NE2000_NB_MAX 6
648 static int ne2000_io
[NE2000_NB_MAX
] = { 0x300, 0x320, 0x340, 0x360, 0x280, 0x380 };
649 static int ne2000_irq
[NE2000_NB_MAX
] = { 9, 10, 11, 3, 4, 5 };
651 static int serial_io
[MAX_SERIAL_PORTS
] = { 0x3f8, 0x2f8, 0x3e8, 0x2e8 };
652 static int serial_irq
[MAX_SERIAL_PORTS
] = { 4, 3, 4, 3 };
654 static int parallel_io
[MAX_PARALLEL_PORTS
] = { 0x378, 0x278, 0x3bc };
655 static int parallel_irq
[MAX_PARALLEL_PORTS
] = { 7, 7, 7 };
658 static void audio_init (PCIBus
*pci_bus
, qemu_irq
*pic
)
661 int audio_enabled
= 0;
663 for (c
= soundhw
; !audio_enabled
&& c
->name
; ++c
) {
664 audio_enabled
= c
->enabled
;
672 for (c
= soundhw
; c
->name
; ++c
) {
675 c
->init
.init_isa (s
, pic
);
679 c
->init
.init_pci (pci_bus
, s
);
689 static void pc_init_ne2k_isa(NICInfo
*nd
, qemu_irq
*pic
)
691 static int nb_ne2k
= 0;
693 if (nb_ne2k
== NE2000_NB_MAX
)
695 isa_ne2000_init(ne2000_io
[nb_ne2k
], pic
[ne2000_irq
[nb_ne2k
]], nd
);
699 /* PC hardware initialisation */
700 static void pc_init1(int ram_size
, int vga_ram_size
,
701 const char *boot_device
, DisplayState
*ds
,
702 const char *kernel_filename
, const char *kernel_cmdline
,
703 const char *initrd_filename
,
704 int pci_enabled
, const char *cpu_model
)
707 int ret
, linux_boot
, i
;
708 ram_addr_t ram_addr
, vga_ram_addr
, bios_offset
, vga_bios_offset
;
709 int bios_size
, isa_bios_size
, vga_bios_size
;
711 int piix3_devfn
= -1;
717 BlockDriverState
*hd
[MAX_IDE_BUS
* MAX_IDE_DEVS
];
718 BlockDriverState
*fd
[MAX_FD
];
720 linux_boot
= (kernel_filename
!= NULL
);
723 if (cpu_model
== NULL
) {
725 cpu_model
= "qemu64";
727 cpu_model
= "qemu32";
731 for(i
= 0; i
< smp_cpus
; i
++) {
732 env
= cpu_init(cpu_model
);
734 fprintf(stderr
, "Unable to find x86 CPU definition\n");
738 env
->hflags
|= HF_HALTED_MASK
;
740 /* XXX: enable it in all cases */
741 env
->cpuid_features
|= CPUID_APIC
;
743 register_savevm("cpu", i
, 4, cpu_save
, cpu_load
, env
);
744 qemu_register_reset(main_cpu_reset
, env
);
752 ram_addr
= qemu_ram_alloc(ram_size
);
753 cpu_register_physical_memory(0, ram_size
, ram_addr
);
755 /* allocate VGA RAM */
756 vga_ram_addr
= qemu_ram_alloc(vga_ram_size
);
759 if (bios_name
== NULL
)
760 bios_name
= BIOS_FILENAME
;
761 snprintf(buf
, sizeof(buf
), "%s/%s", bios_dir
, bios_name
);
762 bios_size
= get_image_size(buf
);
763 if (bios_size
<= 0 ||
764 (bios_size
% 65536) != 0) {
767 bios_offset
= qemu_ram_alloc(bios_size
);
768 ret
= load_image(buf
, phys_ram_base
+ bios_offset
);
769 if (ret
!= bios_size
) {
771 fprintf(stderr
, "qemu: could not load PC BIOS '%s'\n", buf
);
776 if (cirrus_vga_enabled
) {
777 snprintf(buf
, sizeof(buf
), "%s/%s", bios_dir
, VGABIOS_CIRRUS_FILENAME
);
779 snprintf(buf
, sizeof(buf
), "%s/%s", bios_dir
, VGABIOS_FILENAME
);
781 vga_bios_size
= get_image_size(buf
);
782 if (vga_bios_size
<= 0 || vga_bios_size
> 65536)
784 vga_bios_offset
= qemu_ram_alloc(65536);
786 ret
= load_image(buf
, phys_ram_base
+ vga_bios_offset
);
787 if (ret
!= vga_bios_size
) {
789 fprintf(stderr
, "qemu: could not load VGA BIOS '%s'\n", buf
);
793 /* setup basic memory access */
794 cpu_register_physical_memory(0xc0000, 0x10000,
795 vga_bios_offset
| IO_MEM_ROM
);
797 /* map the last 128KB of the BIOS in ISA space */
798 isa_bios_size
= bios_size
;
799 if (isa_bios_size
> (128 * 1024))
800 isa_bios_size
= 128 * 1024;
801 cpu_register_physical_memory(0xd0000, (192 * 1024) - isa_bios_size
,
803 cpu_register_physical_memory(0x100000 - isa_bios_size
,
805 (bios_offset
+ bios_size
- isa_bios_size
) | IO_MEM_ROM
);
808 ram_addr_t option_rom_offset
;
812 for (i
= 0; i
< nb_option_roms
; i
++) {
813 size
= get_image_size(option_rom
[i
]);
815 fprintf(stderr
, "Could not load option rom '%s'\n",
819 if (size
> (0x10000 - offset
))
820 goto option_rom_error
;
821 option_rom_offset
= qemu_ram_alloc(size
);
822 ret
= load_image(option_rom
[i
], phys_ram_base
+ option_rom_offset
);
825 fprintf(stderr
, "Too many option ROMS\n");
828 size
= (size
+ 4095) & ~4095;
829 cpu_register_physical_memory(0xd0000 + offset
,
830 size
, option_rom_offset
| IO_MEM_ROM
);
835 /* map all the bios at the top of memory */
836 cpu_register_physical_memory((uint32_t)(-bios_size
),
837 bios_size
, bios_offset
| IO_MEM_ROM
);
842 load_linux(kernel_filename
, initrd_filename
, kernel_cmdline
);
844 cpu_irq
= qemu_allocate_irqs(pic_irq_request
, first_cpu
, 1);
845 i8259
= i8259_init(cpu_irq
[0]);
846 ferr_irq
= i8259
[13];
849 pci_bus
= i440fx_init(&i440fx_state
, i8259
);
850 piix3_devfn
= piix3_init(pci_bus
, -1);
855 /* init basic PC hardware */
856 register_ioport_write(0x80, 1, 1, ioport80_write
, NULL
);
858 register_ioport_write(0xf0, 1, 1, ioportF0_write
, NULL
);
860 if (cirrus_vga_enabled
) {
862 pci_cirrus_vga_init(pci_bus
,
863 ds
, phys_ram_base
+ vga_ram_addr
,
864 vga_ram_addr
, vga_ram_size
);
866 isa_cirrus_vga_init(ds
, phys_ram_base
+ vga_ram_addr
,
867 vga_ram_addr
, vga_ram_size
);
869 } else if (vmsvga_enabled
) {
871 pci_vmsvga_init(pci_bus
, ds
, phys_ram_base
+ vga_ram_addr
,
872 vga_ram_addr
, vga_ram_size
);
874 fprintf(stderr
, "%s: vmware_vga: no PCI bus\n", __FUNCTION__
);
877 pci_vga_init(pci_bus
, ds
, phys_ram_base
+ vga_ram_addr
,
878 vga_ram_addr
, vga_ram_size
, 0, 0);
880 isa_vga_init(ds
, phys_ram_base
+ vga_ram_addr
,
881 vga_ram_addr
, vga_ram_size
);
885 rtc_state
= rtc_init(0x70, i8259
[8]);
887 register_ioport_read(0x92, 1, 1, ioport92_read
, NULL
);
888 register_ioport_write(0x92, 1, 1, ioport92_write
, NULL
);
891 ioapic
= ioapic_init();
893 pit
= pit_init(0x40, i8259
[0]);
896 pic_set_alt_irq_func(isa_pic
, ioapic_set_irq
, ioapic
);
899 for(i
= 0; i
< MAX_SERIAL_PORTS
; i
++) {
901 serial_init(serial_io
[i
], i8259
[serial_irq
[i
]], serial_hds
[i
]);
905 for(i
= 0; i
< MAX_PARALLEL_PORTS
; i
++) {
906 if (parallel_hds
[i
]) {
907 parallel_init(parallel_io
[i
], i8259
[parallel_irq
[i
]],
912 for(i
= 0; i
< nb_nics
; i
++) {
916 nd
->model
= "ne2k_pci";
918 nd
->model
= "ne2k_isa";
921 if (strcmp(nd
->model
, "ne2k_isa") == 0) {
922 pc_init_ne2k_isa(nd
, i8259
);
923 } else if (pci_enabled
) {
924 if (strcmp(nd
->model
, "?") == 0)
925 fprintf(stderr
, "qemu: Supported ISA NICs: ne2k_isa\n");
926 pci_nic_init(pci_bus
, nd
, -1);
927 } else if (strcmp(nd
->model
, "?") == 0) {
928 fprintf(stderr
, "qemu: Supported ISA NICs: ne2k_isa\n");
931 fprintf(stderr
, "qemu: Unsupported NIC: %s\n", nd
->model
);
936 if (drive_get_max_bus(IF_IDE
) >= MAX_IDE_BUS
) {
937 fprintf(stderr
, "qemu: too many IDE bus\n");
941 for(i
= 0; i
< MAX_IDE_BUS
* MAX_IDE_DEVS
; i
++) {
942 index
= drive_get_index(IF_IDE
, i
/ MAX_IDE_DEVS
, i
% MAX_IDE_DEVS
);
944 hd
[i
] = drives_table
[index
].bdrv
;
950 pci_piix3_ide_init(pci_bus
, hd
, piix3_devfn
+ 1, i8259
);
952 for(i
= 0; i
< MAX_IDE_BUS
; i
++) {
953 isa_ide_init(ide_iobase
[i
], ide_iobase2
[i
], i8259
[ide_irq
[i
]],
954 hd
[MAX_IDE_DEVS
* i
], hd
[MAX_IDE_DEVS
* i
+ 1]);
958 i8042_init(i8259
[1], i8259
[12], 0x60);
961 audio_init(pci_enabled
? pci_bus
: NULL
, i8259
);
964 for(i
= 0; i
< MAX_FD
; i
++) {
965 index
= drive_get_index(IF_FLOPPY
, 0, i
);
967 fd
[i
] = drives_table
[index
].bdrv
;
971 floppy_controller
= fdctrl_init(i8259
[6], 2, 0, 0x3f0, fd
);
973 cmos_init(ram_size
, boot_device
, hd
);
975 if (pci_enabled
&& usb_enabled
) {
976 usb_uhci_piix3_init(pci_bus
, piix3_devfn
+ 2);
979 if (pci_enabled
&& acpi_enabled
) {
980 uint8_t *eeprom_buf
= qemu_mallocz(8 * 256); /* XXX: make this persistent */
983 /* TODO: Populate SPD eeprom data. */
984 smbus
= piix4_pm_init(pci_bus
, piix3_devfn
+ 3, 0xb100);
985 for (i
= 0; i
< 8; i
++) {
986 smbus_eeprom_device_init(smbus
, 0x50 + i
, eeprom_buf
+ (i
* 256));
991 i440fx_init_memory_mappings(i440fx_state
);
999 max_bus
= drive_get_max_bus(IF_SCSI
);
1001 for (bus
= 0; bus
<= max_bus
; bus
++) {
1002 scsi
= lsi_scsi_init(pci_bus
, -1);
1003 for (unit
= 0; unit
< LSI_MAX_DEVS
; unit
++) {
1004 index
= drive_get_index(IF_SCSI
, bus
, unit
);
1007 lsi_scsi_attach(scsi
, drives_table
[index
].bdrv
, unit
);
1013 static void pc_init_pci(int ram_size
, int vga_ram_size
,
1014 const char *boot_device
, DisplayState
*ds
,
1015 const char *kernel_filename
,
1016 const char *kernel_cmdline
,
1017 const char *initrd_filename
,
1018 const char *cpu_model
)
1020 pc_init1(ram_size
, vga_ram_size
, boot_device
, ds
,
1021 kernel_filename
, kernel_cmdline
,
1022 initrd_filename
, 1, cpu_model
);
1025 static void pc_init_isa(int ram_size
, int vga_ram_size
,
1026 const char *boot_device
, DisplayState
*ds
,
1027 const char *kernel_filename
,
1028 const char *kernel_cmdline
,
1029 const char *initrd_filename
,
1030 const char *cpu_model
)
1032 pc_init1(ram_size
, vga_ram_size
, boot_device
, ds
,
1033 kernel_filename
, kernel_cmdline
,
1034 initrd_filename
, 0, cpu_model
);
1037 QEMUMachine pc_machine
= {
1043 QEMUMachine isapc_machine
= {