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"
36 #include "hpet_emul.h"
40 #include "device-assignment.h"
44 /* output Bochs bios info messages */
47 /* Show multiboot debug output */
48 //#define DEBUG_MULTIBOOT
50 #define BIOS_FILENAME "bios.bin"
51 #define VGABIOS_FILENAME "vgabios.bin"
52 #define VGABIOS_CIRRUS_FILENAME "vgabios-cirrus.bin"
53 #define EXTBOOT_FILENAME "extboot.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)
66 static fdctrl_t
*floppy_controller
;
67 static RTCState
*rtc_state
;
69 static PCII440FXState
*i440fx_state
;
71 qemu_irq
*ioapic_irq_hack
;
73 typedef struct rom_reset_data
{
75 target_phys_addr_t addr
;
79 static void option_rom_reset(void *_rrd
)
81 RomResetData
*rrd
= _rrd
;
83 cpu_physical_memory_write_rom(rrd
->addr
, rrd
->data
, rrd
->size
);
86 static void option_rom_setup_reset(target_phys_addr_t addr
, unsigned size
)
88 RomResetData
*rrd
= qemu_malloc(sizeof *rrd
);
90 rrd
->data
= qemu_malloc(size
);
91 cpu_physical_memory_read(addr
, rrd
->data
, size
);
94 qemu_register_reset(option_rom_reset
, rrd
);
97 typedef struct isa_irq_state
{
102 static void isa_irq_handler(void *opaque
, int n
, int level
)
104 IsaIrqState
*isa
= (IsaIrqState
*)opaque
;
107 qemu_set_irq(isa
->i8259
[n
], level
);
110 qemu_set_irq(isa
->ioapic
[n
], level
);
113 static void ioport80_write(void *opaque
, uint32_t addr
, uint32_t data
)
117 /* MSDOS compatibility mode FPU exception support */
118 static qemu_irq ferr_irq
;
119 /* XXX: add IGNNE support */
120 void cpu_set_ferr(CPUX86State
*s
)
122 qemu_irq_raise(ferr_irq
);
125 static void ioportF0_write(void *opaque
, uint32_t addr
, uint32_t data
)
127 qemu_irq_lower(ferr_irq
);
131 uint64_t cpu_get_tsc(CPUX86State
*env
)
133 return cpu_get_ticks();
137 void cpu_smm_update(CPUState
*env
)
139 if (i440fx_state
&& env
== first_cpu
)
140 i440fx_set_smm(i440fx_state
, (env
->hflags
>> HF_SMM_SHIFT
) & 1);
145 int cpu_get_pic_interrupt(CPUState
*env
)
149 intno
= apic_get_interrupt(env
);
151 /* set irq request if a PIC irq is still pending */
152 /* XXX: improve that */
153 pic_update_irq(isa_pic
);
156 /* read the irq from the PIC */
157 if (!apic_accept_pic_intr(env
))
160 intno
= pic_read_irq(isa_pic
);
164 static void pic_irq_request(void *opaque
, int irq
, int level
)
166 CPUState
*env
= first_cpu
;
168 if (env
->apic_state
) {
170 if (apic_accept_pic_intr(env
))
171 apic_deliver_pic_intr(env
, level
);
176 cpu_interrupt(env
, CPU_INTERRUPT_HARD
);
178 cpu_reset_interrupt(env
, CPU_INTERRUPT_HARD
);
182 /* PC cmos mappings */
184 #define REG_EQUIPMENT_BYTE 0x14
186 static int cmos_get_fd_drive_type(int fd0
)
192 /* 1.44 Mb 3"5 drive */
196 /* 2.88 Mb 3"5 drive */
200 /* 1.2 Mb 5"5 drive */
210 static void cmos_init_hd(int type_ofs
, int info_ofs
, BlockDriverState
*hd
)
212 RTCState
*s
= rtc_state
;
213 int cylinders
, heads
, sectors
;
214 bdrv_get_geometry_hint(hd
, &cylinders
, &heads
, §ors
);
215 rtc_set_memory(s
, type_ofs
, 47);
216 rtc_set_memory(s
, info_ofs
, cylinders
);
217 rtc_set_memory(s
, info_ofs
+ 1, cylinders
>> 8);
218 rtc_set_memory(s
, info_ofs
+ 2, heads
);
219 rtc_set_memory(s
, info_ofs
+ 3, 0xff);
220 rtc_set_memory(s
, info_ofs
+ 4, 0xff);
221 rtc_set_memory(s
, info_ofs
+ 5, 0xc0 | ((heads
> 8) << 3));
222 rtc_set_memory(s
, info_ofs
+ 6, cylinders
);
223 rtc_set_memory(s
, info_ofs
+ 7, cylinders
>> 8);
224 rtc_set_memory(s
, info_ofs
+ 8, sectors
);
227 /* convert boot_device letter to something recognizable by the bios */
228 static int boot_device2nibble(char boot_device
)
230 switch(boot_device
) {
233 return 0x01; /* floppy boot */
235 return 0x02; /* hard drive boot */
237 return 0x03; /* CD-ROM boot */
239 return 0x04; /* Network boot */
244 /* copy/pasted from cmos_init, should be made a general function
245 and used there as well */
246 static int pc_boot_set(void *opaque
, const char *boot_device
)
248 Monitor
*mon
= cur_mon
;
249 #define PC_MAX_BOOT_DEVICES 3
250 RTCState
*s
= (RTCState
*)opaque
;
251 int nbds
, bds
[3] = { 0, };
254 nbds
= strlen(boot_device
);
255 if (nbds
> PC_MAX_BOOT_DEVICES
) {
256 monitor_printf(mon
, "Too many boot devices for PC\n");
259 for (i
= 0; i
< nbds
; i
++) {
260 bds
[i
] = boot_device2nibble(boot_device
[i
]);
262 monitor_printf(mon
, "Invalid boot device for PC: '%c'\n",
267 rtc_set_memory(s
, 0x3d, (bds
[1] << 4) | bds
[0]);
268 rtc_set_memory(s
, 0x38, (bds
[2] << 4));
272 /* hd_table must contain 4 block drivers */
273 static void cmos_init(ram_addr_t ram_size
, ram_addr_t above_4g_mem_size
,
274 const char *boot_device
, DriveInfo
**hd_table
)
276 RTCState
*s
= rtc_state
;
277 int nbds
, bds
[3] = { 0, };
282 /* various important CMOS locations needed by PC/Bochs bios */
285 val
= 640; /* base memory in K */
286 rtc_set_memory(s
, 0x15, val
);
287 rtc_set_memory(s
, 0x16, val
>> 8);
289 val
= (ram_size
/ 1024) - 1024;
292 rtc_set_memory(s
, 0x17, val
);
293 rtc_set_memory(s
, 0x18, val
>> 8);
294 rtc_set_memory(s
, 0x30, val
);
295 rtc_set_memory(s
, 0x31, val
>> 8);
297 if (above_4g_mem_size
) {
298 rtc_set_memory(s
, 0x5b, (unsigned int)above_4g_mem_size
>> 16);
299 rtc_set_memory(s
, 0x5c, (unsigned int)above_4g_mem_size
>> 24);
300 rtc_set_memory(s
, 0x5d, (uint64_t)above_4g_mem_size
>> 32);
303 if (ram_size
> (16 * 1024 * 1024))
304 val
= (ram_size
/ 65536) - ((16 * 1024 * 1024) / 65536);
309 rtc_set_memory(s
, 0x34, val
);
310 rtc_set_memory(s
, 0x35, val
>> 8);
312 /* set the number of CPU */
313 rtc_set_memory(s
, 0x5f, smp_cpus
- 1);
315 /* set boot devices, and disable floppy signature check if requested */
316 #define PC_MAX_BOOT_DEVICES 3
317 nbds
= strlen(boot_device
);
318 if (nbds
> PC_MAX_BOOT_DEVICES
) {
319 fprintf(stderr
, "Too many boot devices for PC\n");
322 for (i
= 0; i
< nbds
; i
++) {
323 bds
[i
] = boot_device2nibble(boot_device
[i
]);
325 fprintf(stderr
, "Invalid boot device for PC: '%c'\n",
330 rtc_set_memory(s
, 0x3d, (bds
[1] << 4) | bds
[0]);
331 rtc_set_memory(s
, 0x38, (bds
[2] << 4) | (fd_bootchk
? 0x0 : 0x1));
335 fd0
= fdctrl_get_drive_type(floppy_controller
, 0);
336 fd1
= fdctrl_get_drive_type(floppy_controller
, 1);
338 val
= (cmos_get_fd_drive_type(fd0
) << 4) | cmos_get_fd_drive_type(fd1
);
339 rtc_set_memory(s
, 0x10, val
);
351 val
|= 0x01; /* 1 drive, ready for boot */
354 val
|= 0x41; /* 2 drives, ready for boot */
357 val
|= 0x02; /* FPU is there */
358 val
|= 0x04; /* PS/2 mouse installed */
359 rtc_set_memory(s
, REG_EQUIPMENT_BYTE
, val
);
363 rtc_set_memory(s
, 0x12, (hd_table
[0] ? 0xf0 : 0) | (hd_table
[1] ? 0x0f : 0));
365 cmos_init_hd(0x19, 0x1b, hd_table
[0]->bdrv
);
367 cmos_init_hd(0x1a, 0x24, hd_table
[1]->bdrv
);
370 for (i
= 0; i
< 4; i
++) {
372 int cylinders
, heads
, sectors
, translation
;
373 /* NOTE: bdrv_get_geometry_hint() returns the physical
374 geometry. It is always such that: 1 <= sects <= 63, 1
375 <= heads <= 16, 1 <= cylinders <= 16383. The BIOS
376 geometry can be different if a translation is done. */
377 translation
= bdrv_get_translation_hint(hd_table
[i
]->bdrv
);
378 if (translation
== BIOS_ATA_TRANSLATION_AUTO
) {
379 bdrv_get_geometry_hint(hd_table
[i
]->bdrv
, &cylinders
, &heads
, §ors
);
380 if (cylinders
<= 1024 && heads
<= 16 && sectors
<= 63) {
381 /* No translation. */
384 /* LBA translation. */
390 val
|= translation
<< (i
* 2);
393 rtc_set_memory(s
, 0x39, val
);
396 void ioport_set_a20(int enable
)
398 /* XXX: send to all CPUs ? */
399 cpu_x86_set_a20(first_cpu
, enable
);
402 int ioport_get_a20(void)
404 return ((first_cpu
->a20_mask
>> 20) & 1);
407 static void ioport92_write(void *opaque
, uint32_t addr
, uint32_t val
)
409 ioport_set_a20((val
>> 1) & 1);
410 /* XXX: bit 0 is fast reset */
413 static uint32_t ioport92_read(void *opaque
, uint32_t addr
)
415 return ioport_get_a20() << 1;
418 /***********************************************************/
419 /* Bochs BIOS debug ports */
421 static void bochs_bios_write(void *opaque
, uint32_t addr
, uint32_t val
)
423 static const char shutdown_str
[8] = "Shutdown";
424 static int shutdown_index
= 0;
427 /* Bochs BIOS messages */
430 fprintf(stderr
, "BIOS panic at rombios.c, line %d\n", val
);
435 fprintf(stderr
, "%c", val
);
439 /* same as Bochs power off */
440 if (val
== shutdown_str
[shutdown_index
]) {
442 if (shutdown_index
== 8) {
444 qemu_system_shutdown_request();
451 /* LGPL'ed VGA BIOS messages */
454 fprintf(stderr
, "VGA BIOS panic, line %d\n", val
);
459 fprintf(stderr
, "%c", val
);
465 static void *bochs_bios_init(void)
468 uint8_t *smbios_table
;
470 uint64_t *numa_fw_cfg
;
473 register_ioport_write(0x400, 1, 2, bochs_bios_write
, NULL
);
474 register_ioport_write(0x401, 1, 2, bochs_bios_write
, NULL
);
475 register_ioport_write(0x402, 1, 1, bochs_bios_write
, NULL
);
476 register_ioport_write(0x403, 1, 1, bochs_bios_write
, NULL
);
477 register_ioport_write(0x8900, 1, 1, bochs_bios_write
, NULL
);
479 register_ioport_write(0x501, 1, 2, bochs_bios_write
, NULL
);
480 register_ioport_write(0x502, 1, 2, bochs_bios_write
, NULL
);
481 register_ioport_write(0x500, 1, 1, bochs_bios_write
, NULL
);
482 register_ioport_write(0x503, 1, 1, bochs_bios_write
, NULL
);
484 fw_cfg
= fw_cfg_init(BIOS_CFG_IOPORT
, BIOS_CFG_IOPORT
+ 1, 0, 0);
486 fw_cfg_add_i32(fw_cfg
, FW_CFG_ID
, 1);
487 fw_cfg_add_i64(fw_cfg
, FW_CFG_RAM_SIZE
, (uint64_t)ram_size
);
488 fw_cfg_add_bytes(fw_cfg
, FW_CFG_ACPI_TABLES
, (uint8_t *)acpi_tables
,
490 fw_cfg_add_bytes(fw_cfg
, FW_CFG_IRQ0_OVERRIDE
, &irq0override
, 1);
492 smbios_table
= smbios_get_table(&smbios_len
);
494 fw_cfg_add_bytes(fw_cfg
, FW_CFG_SMBIOS_ENTRIES
,
495 smbios_table
, smbios_len
);
497 /* allocate memory for the NUMA channel: one (64bit) word for the number
498 * of nodes, one word for each VCPU->node and one word for each node to
499 * hold the amount of memory.
501 numa_fw_cfg
= qemu_mallocz((1 + smp_cpus
+ nb_numa_nodes
) * 8);
502 numa_fw_cfg
[0] = cpu_to_le64(nb_numa_nodes
);
503 for (i
= 0; i
< smp_cpus
; i
++) {
504 for (j
= 0; j
< nb_numa_nodes
; j
++) {
505 if (node_cpumask
[j
] & (1 << i
)) {
506 numa_fw_cfg
[i
+ 1] = cpu_to_le64(j
);
511 for (i
= 0; i
< nb_numa_nodes
; i
++) {
512 numa_fw_cfg
[smp_cpus
+ 1 + i
] = cpu_to_le64(node_mem
[i
]);
514 fw_cfg_add_bytes(fw_cfg
, FW_CFG_NUMA
, (uint8_t *)numa_fw_cfg
,
515 (1 + smp_cpus
+ nb_numa_nodes
) * 8);
520 /* Generate an initial boot sector which sets state and jump to
521 a specified vector */
522 static void generate_bootsect(target_phys_addr_t option_rom
,
523 uint32_t gpr
[8], uint16_t segs
[6], uint16_t ip
)
525 uint8_t rom
[512], *p
, *reloc
;
529 memset(rom
, 0, sizeof(rom
));
532 /* Make sure we have an option rom signature */
536 /* ROM size in sectors*/
541 *p
++ = 0x50; /* push ax */
542 *p
++ = 0x1e; /* push ds */
543 *p
++ = 0x31; *p
++ = 0xc0; /* xor ax, ax */
544 *p
++ = 0x8e; *p
++ = 0xd8; /* mov ax, ds */
546 *p
++ = 0xc7; *p
++ = 0x06; /* movvw _start,0x64 */
547 *p
++ = 0x64; *p
++ = 0x00;
549 *p
++ = 0x00; *p
++ = 0x00;
551 *p
++ = 0x8c; *p
++ = 0x0e; /* mov cs,0x66 */
552 *p
++ = 0x66; *p
++ = 0x00;
554 *p
++ = 0x1f; /* pop ds */
555 *p
++ = 0x58; /* pop ax */
556 *p
++ = 0xcb; /* lret */
561 *p
++ = 0xfa; /* CLI */
562 *p
++ = 0xfc; /* CLD */
564 for (i
= 0; i
< 6; i
++) {
565 if (i
== 1) /* Skip CS */
568 *p
++ = 0xb8; /* MOV AX,imm16 */
571 *p
++ = 0x8e; /* MOV <seg>,AX */
572 *p
++ = 0xc0 + (i
<< 3);
575 for (i
= 0; i
< 8; i
++) {
576 *p
++ = 0x66; /* 32-bit operand size */
577 *p
++ = 0xb8 + i
; /* MOV <reg>,imm32 */
584 *p
++ = 0xea; /* JMP FAR */
587 *p
++ = segs
[1]; /* CS */
592 for (i
= 0; i
< (sizeof(rom
) - 1); i
++)
594 rom
[sizeof(rom
) - 1] = -sum
;
596 cpu_physical_memory_write_rom(option_rom
, rom
, sizeof(rom
));
597 option_rom_setup_reset(option_rom
, sizeof (rom
));
600 static long get_file_size(FILE *f
)
604 /* XXX: on Unix systems, using fstat() probably makes more sense */
607 fseek(f
, 0, SEEK_END
);
609 fseek(f
, where
, SEEK_SET
);
614 #define MULTIBOOT_STRUCT_ADDR 0x9000
616 #if MULTIBOOT_STRUCT_ADDR > 0xf0000
617 #error multiboot struct needs to fit in 16 bit real mode
620 static int load_multiboot(void *fw_cfg
,
622 const char *kernel_filename
,
623 const char *initrd_filename
,
624 const char *kernel_cmdline
,
627 int i
, t
, is_multiboot
= 0;
629 uint32_t mh_entry_addr
;
630 uint32_t mh_load_addr
;
631 uint32_t mb_kernel_size
;
632 uint32_t mmap_addr
= MULTIBOOT_STRUCT_ADDR
;
633 uint32_t mb_bootinfo
= MULTIBOOT_STRUCT_ADDR
+ 0x500;
634 uint32_t mb_cmdline
= mb_bootinfo
+ 0x200;
637 /* Ok, let's see if it is a multiboot image.
638 The header is 12x32bit long, so the latest entry may be 8192 - 48. */
639 for (i
= 0; i
< (8192 - 48); i
+= 4) {
640 if (ldl_p(header
+i
) == 0x1BADB002) {
641 uint32_t checksum
= ldl_p(header
+i
+8);
642 flags
= ldl_p(header
+i
+4);
644 checksum
+= (uint32_t)0x1BADB002;
653 return 0; /* no multiboot */
655 #ifdef DEBUG_MULTIBOOT
656 fprintf(stderr
, "qemu: I believe we found a multiboot image!\n");
659 if (flags
& 0x00000004) { /* MULTIBOOT_HEADER_HAS_VBE */
660 fprintf(stderr
, "qemu: multiboot knows VBE. we don't.\n");
662 if (!(flags
& 0x00010000)) { /* MULTIBOOT_HEADER_HAS_ADDR */
666 kernel_size
= load_elf(kernel_filename
, 0, &elf_entry
, NULL
, NULL
);
667 if (kernel_size
< 0) {
668 fprintf(stderr
, "Error while loading elf kernel\n");
671 mh_load_addr
= mh_entry_addr
= elf_entry
;
672 mb_kernel_size
= kernel_size
;
674 #ifdef DEBUG_MULTIBOOT
675 fprintf(stderr
, "qemu: loading multiboot-elf kernel (%#x bytes) with entry %#zx\n",
676 mb_kernel_size
, (size_t)mh_entry_addr
);
679 /* Valid if mh_flags sets MULTIBOOT_HEADER_HAS_ADDR. */
680 uint32_t mh_header_addr
= ldl_p(header
+i
+12);
681 mh_load_addr
= ldl_p(header
+i
+16);
682 #ifdef DEBUG_MULTIBOOT
683 uint32_t mh_load_end_addr
= ldl_p(header
+i
+20);
684 uint32_t mh_bss_end_addr
= ldl_p(header
+i
+24);
686 uint32_t mb_kernel_text_offset
= i
- (mh_header_addr
- mh_load_addr
);
688 mh_entry_addr
= ldl_p(header
+i
+28);
689 mb_kernel_size
= get_file_size(f
) - mb_kernel_text_offset
;
691 /* Valid if mh_flags sets MULTIBOOT_HEADER_HAS_VBE.
692 uint32_t mh_mode_type = ldl_p(header+i+32);
693 uint32_t mh_width = ldl_p(header+i+36);
694 uint32_t mh_height = ldl_p(header+i+40);
695 uint32_t mh_depth = ldl_p(header+i+44); */
697 #ifdef DEBUG_MULTIBOOT
698 fprintf(stderr
, "multiboot: mh_header_addr = %#x\n", mh_header_addr
);
699 fprintf(stderr
, "multiboot: mh_load_addr = %#x\n", mh_load_addr
);
700 fprintf(stderr
, "multiboot: mh_load_end_addr = %#x\n", mh_load_end_addr
);
701 fprintf(stderr
, "multiboot: mh_bss_end_addr = %#x\n", mh_bss_end_addr
);
704 fseek(f
, mb_kernel_text_offset
, SEEK_SET
);
706 #ifdef DEBUG_MULTIBOOT
707 fprintf(stderr
, "qemu: loading multiboot kernel (%#x bytes) at %#x\n",
708 mb_kernel_size
, mh_load_addr
);
711 if (!fread_targphys_ok(mh_load_addr
, mb_kernel_size
, f
)) {
712 fprintf(stderr
, "qemu: read error on multiboot kernel '%s' (%#x)\n",
713 kernel_filename
, mb_kernel_size
);
719 /* blob size is only the kernel for now */
720 mb_mod_end
= mh_load_addr
+ mb_kernel_size
;
723 stl_phys(mb_bootinfo
+ 20, 0x0); /* mods_count */
724 if (initrd_filename
) {
725 uint32_t mb_mod_info
= mb_bootinfo
+ 0x100;
726 uint32_t mb_mod_cmdline
= mb_bootinfo
+ 0x300;
727 uint32_t mb_mod_start
= mh_load_addr
;
728 uint32_t mb_mod_length
= mb_kernel_size
;
731 int mb_mod_count
= 0;
734 next_initrd
= strchr(initrd_filename
, ',');
737 /* if a space comes after the module filename, treat everything
738 after that as parameters */
739 cpu_physical_memory_write(mb_mod_cmdline
, (uint8_t*)initrd_filename
,
740 strlen(initrd_filename
) + 1);
741 stl_phys(mb_mod_info
+ 8, mb_mod_cmdline
); /* string */
742 mb_mod_cmdline
+= strlen(initrd_filename
) + 1;
743 if ((next_space
= strchr(initrd_filename
, ' ')))
745 #ifdef DEBUG_MULTIBOOT
746 printf("multiboot loading module: %s\n", initrd_filename
);
748 f
= fopen(initrd_filename
, "rb");
750 mb_mod_start
= (mb_mod_start
+ mb_mod_length
+ (TARGET_PAGE_SIZE
- 1))
751 & (TARGET_PAGE_MASK
);
752 mb_mod_length
= get_file_size(f
);
753 mb_mod_end
= mb_mod_start
+ mb_mod_length
;
755 if (!fread_targphys_ok(mb_mod_start
, mb_mod_length
, f
)) {
756 fprintf(stderr
, "qemu: read error on multiboot module '%s' (%#x)\n",
757 initrd_filename
, mb_mod_length
);
762 stl_phys(mb_mod_info
+ 0, mb_mod_start
);
763 stl_phys(mb_mod_info
+ 4, mb_mod_start
+ mb_mod_length
);
764 #ifdef DEBUG_MULTIBOOT
765 printf("mod_start: %#x\nmod_end: %#x\n", mb_mod_start
,
766 mb_mod_start
+ mb_mod_length
);
768 stl_phys(mb_mod_info
+ 12, 0x0); /* reserved */
770 initrd_filename
= next_initrd
+1;
772 } while (next_initrd
);
773 stl_phys(mb_bootinfo
+ 20, mb_mod_count
); /* mods_count */
774 stl_phys(mb_bootinfo
+ 24, mb_bootinfo
+ 0x100); /* mods_addr */
777 /* Make sure we're getting kernel + modules back after reset */
778 option_rom_setup_reset(mh_load_addr
, mb_mod_end
- mh_load_addr
);
780 /* Commandline support */
781 stl_phys(mb_bootinfo
+ 16, mb_cmdline
);
782 t
= strlen(kernel_filename
);
783 cpu_physical_memory_write(mb_cmdline
, (uint8_t*)kernel_filename
, t
);
785 stb_phys(mb_cmdline
++, ' ');
786 t
= strlen(kernel_cmdline
) + 1;
787 cpu_physical_memory_write(mb_cmdline
, (uint8_t*)kernel_cmdline
, t
);
789 /* the kernel is where we want it to be now */
791 #define MULTIBOOT_FLAGS_MEMORY (1 << 0)
792 #define MULTIBOOT_FLAGS_BOOT_DEVICE (1 << 1)
793 #define MULTIBOOT_FLAGS_CMDLINE (1 << 2)
794 #define MULTIBOOT_FLAGS_MODULES (1 << 3)
795 #define MULTIBOOT_FLAGS_MMAP (1 << 6)
796 stl_phys(mb_bootinfo
, MULTIBOOT_FLAGS_MEMORY
797 | MULTIBOOT_FLAGS_BOOT_DEVICE
798 | MULTIBOOT_FLAGS_CMDLINE
799 | MULTIBOOT_FLAGS_MODULES
800 | MULTIBOOT_FLAGS_MMAP
);
801 stl_phys(mb_bootinfo
+ 4, 640); /* mem_lower */
802 stl_phys(mb_bootinfo
+ 8, ram_size
/ 1024); /* mem_upper */
803 stl_phys(mb_bootinfo
+ 12, 0x8001ffff); /* XXX: use the -boot switch? */
804 stl_phys(mb_bootinfo
+ 48, mmap_addr
); /* mmap_addr */
806 #ifdef DEBUG_MULTIBOOT
807 fprintf(stderr
, "multiboot: mh_entry_addr = %#x\n", mh_entry_addr
);
810 /* Pass variables to option rom */
811 fw_cfg_add_i32(fw_cfg
, FW_CFG_KERNEL_ADDR
, mh_entry_addr
);
812 fw_cfg_add_i32(fw_cfg
, FW_CFG_INITRD_ADDR
, mb_bootinfo
);
813 fw_cfg_add_i32(fw_cfg
, FW_CFG_INITRD_SIZE
, mmap_addr
);
815 /* Make sure we're getting the config space back after reset */
816 option_rom_setup_reset(mb_bootinfo
, 0x500);
818 option_rom
[nb_option_roms
] = "multiboot.bin";
821 return 1; /* yes, we are multiboot */
824 static void load_linux(void *fw_cfg
,
825 target_phys_addr_t option_rom
,
826 const char *kernel_filename
,
827 const char *initrd_filename
,
828 const char *kernel_cmdline
,
829 target_phys_addr_t max_ram_size
)
835 int setup_size
, kernel_size
, initrd_size
= 0, cmdline_size
;
837 uint8_t header
[8192];
838 target_phys_addr_t real_addr
, prot_addr
, cmdline_addr
, initrd_addr
= 0;
842 /* Align to 16 bytes as a paranoia measure */
843 cmdline_size
= (strlen(kernel_cmdline
)+16) & ~15;
845 /* load the kernel header */
846 f
= fopen(kernel_filename
, "rb");
847 if (!f
|| !(kernel_size
= get_file_size(f
)) ||
848 fread(header
, 1, MIN(ARRAY_SIZE(header
), kernel_size
), f
) !=
849 MIN(ARRAY_SIZE(header
), kernel_size
)) {
850 fprintf(stderr
, "qemu: could not load kernel '%s'\n",
855 /* kernel protocol version */
857 fprintf(stderr
, "header magic: %#x\n", ldl_p(header
+0x202));
859 if (ldl_p(header
+0x202) == 0x53726448)
860 protocol
= lduw_p(header
+0x206);
862 /* This looks like a multiboot kernel. If it is, let's stop
863 treating it like a Linux kernel. */
864 if (load_multiboot(fw_cfg
, f
, kernel_filename
,
865 initrd_filename
, kernel_cmdline
, header
))
870 if (protocol
< 0x200 || !(header
[0x211] & 0x01)) {
873 cmdline_addr
= 0x9a000 - cmdline_size
;
875 } else if (protocol
< 0x202) {
876 /* High but ancient kernel */
878 cmdline_addr
= 0x9a000 - cmdline_size
;
879 prot_addr
= 0x100000;
881 /* High and recent kernel */
883 cmdline_addr
= 0x20000;
884 prot_addr
= 0x100000;
889 "qemu: real_addr = 0x" TARGET_FMT_plx
"\n"
890 "qemu: cmdline_addr = 0x" TARGET_FMT_plx
"\n"
891 "qemu: prot_addr = 0x" TARGET_FMT_plx
"\n",
897 /* highest address for loading the initrd */
898 if (protocol
>= 0x203)
899 initrd_max
= ldl_p(header
+0x22c);
901 initrd_max
= 0x37ffffff;
903 if (initrd_max
>= max_ram_size
-ACPI_DATA_SIZE
)
904 initrd_max
= max_ram_size
-ACPI_DATA_SIZE
-1;
906 /* kernel command line */
907 pstrcpy_targphys(cmdline_addr
, 4096, kernel_cmdline
);
909 if (protocol
>= 0x202) {
910 stl_p(header
+0x228, cmdline_addr
);
912 stw_p(header
+0x20, 0xA33F);
913 stw_p(header
+0x22, cmdline_addr
-real_addr
);
916 /* handle vga= parameter */
917 vmode
= strstr(kernel_cmdline
, "vga=");
919 unsigned int video_mode
;
922 if (!strncmp(vmode
, "normal", 6)) {
924 } else if (!strncmp(vmode
, "ext", 3)) {
926 } else if (!strncmp(vmode
, "ask", 3)) {
929 video_mode
= strtol(vmode
, NULL
, 0);
931 stw_p(header
+0x1fa, video_mode
);
935 /* High nybble = B reserved for Qemu; low nybble is revision number.
936 If this code is substantially changed, you may want to consider
937 incrementing the revision. */
938 if (protocol
>= 0x200)
939 header
[0x210] = 0xB0;
942 if (protocol
>= 0x201) {
943 header
[0x211] |= 0x80; /* CAN_USE_HEAP */
944 stw_p(header
+0x224, cmdline_addr
-real_addr
-0x200);
948 if (initrd_filename
) {
949 if (protocol
< 0x200) {
950 fprintf(stderr
, "qemu: linux kernel too old to load a ram disk\n");
954 fi
= fopen(initrd_filename
, "rb");
956 fprintf(stderr
, "qemu: could not load initial ram disk '%s'\n",
961 initrd_size
= get_file_size(fi
);
962 initrd_addr
= (initrd_max
-initrd_size
) & ~4095;
964 if (!fread_targphys_ok(initrd_addr
, initrd_size
, fi
)) {
965 fprintf(stderr
, "qemu: read error on initial ram disk '%s'\n",
971 stl_p(header
+0x218, initrd_addr
);
972 stl_p(header
+0x21c, initrd_size
);
975 /* store the finalized header and load the rest of the kernel */
976 cpu_physical_memory_write(real_addr
, header
, ARRAY_SIZE(header
));
978 setup_size
= header
[0x1f1];
982 setup_size
= (setup_size
+1)*512;
983 /* Size of protected-mode code */
984 kernel_size
-= (setup_size
> ARRAY_SIZE(header
)) ? setup_size
: ARRAY_SIZE(header
);
986 /* In case we have read too much already, copy that over */
987 if (setup_size
< ARRAY_SIZE(header
)) {
988 cpu_physical_memory_write(prot_addr
, header
+ setup_size
, ARRAY_SIZE(header
) - setup_size
);
989 prot_addr
+= (ARRAY_SIZE(header
) - setup_size
);
990 setup_size
= ARRAY_SIZE(header
);
993 if (!fread_targphys_ok(real_addr
+ ARRAY_SIZE(header
),
994 setup_size
- ARRAY_SIZE(header
), f
) ||
995 !fread_targphys_ok(prot_addr
, kernel_size
, f
)) {
996 fprintf(stderr
, "qemu: read error on kernel '%s'\n",
1002 /* generate bootsector to set up the initial register state */
1003 real_seg
= real_addr
>> 4;
1004 seg
[0] = seg
[2] = seg
[3] = seg
[4] = seg
[4] = real_seg
;
1005 seg
[1] = real_seg
+0x20; /* CS */
1006 memset(gpr
, 0, sizeof gpr
);
1007 gpr
[4] = cmdline_addr
-real_addr
-16; /* SP (-16 is paranoia) */
1009 option_rom_setup_reset(real_addr
, setup_size
);
1010 option_rom_setup_reset(prot_addr
, kernel_size
);
1011 option_rom_setup_reset(cmdline_addr
, cmdline_size
);
1012 if (initrd_filename
)
1013 option_rom_setup_reset(initrd_addr
, initrd_size
);
1015 generate_bootsect(option_rom
, gpr
, seg
, 0);
1018 static const int ide_iobase
[2] = { 0x1f0, 0x170 };
1019 static const int ide_iobase2
[2] = { 0x3f6, 0x376 };
1020 static const int ide_irq
[2] = { 14, 15 };
1022 #define NE2000_NB_MAX 6
1024 static const int ne2000_io
[NE2000_NB_MAX
] = { 0x300, 0x320, 0x340, 0x360,
1026 static const int ne2000_irq
[NE2000_NB_MAX
] = { 9, 10, 11, 3, 4, 5 };
1028 static const int serial_io
[MAX_SERIAL_PORTS
] = { 0x3f8, 0x2f8, 0x3e8, 0x2e8 };
1029 static const int serial_irq
[MAX_SERIAL_PORTS
] = { 4, 3, 4, 3 };
1031 static const int parallel_io
[MAX_PARALLEL_PORTS
] = { 0x378, 0x278, 0x3bc };
1032 static const int parallel_irq
[MAX_PARALLEL_PORTS
] = { 7, 7, 7 };
1035 static void audio_init (PCIBus
*pci_bus
, qemu_irq
*pic
)
1039 for (c
= soundhw
; c
->name
; ++c
) {
1042 c
->init
.init_isa(pic
);
1045 c
->init
.init_pci(pci_bus
);
1053 static void pc_init_ne2k_isa(NICInfo
*nd
)
1055 static int nb_ne2k
= 0;
1057 if (nb_ne2k
== NE2000_NB_MAX
)
1059 isa_ne2000_init(ne2000_io
[nb_ne2k
],
1060 ne2000_irq
[nb_ne2k
], nd
);
1064 static int load_option_rom(const char *oprom
, target_phys_addr_t start
,
1065 target_phys_addr_t end
)
1070 filename
= qemu_find_file(QEMU_FILE_TYPE_BIOS
, oprom
);
1072 size
= get_image_size(filename
);
1073 if (size
> 0 && start
+ size
> end
) {
1074 fprintf(stderr
, "Not enough space to load option rom '%s'\n",
1078 size
= load_image_targphys(filename
, start
, end
- start
);
1079 qemu_free(filename
);
1084 fprintf(stderr
, "Could not load option rom '%s'\n", oprom
);
1087 /* Round up optiom rom size to the next 2k boundary */
1088 size
= (size
+ 2047) & ~2047;
1089 option_rom_setup_reset(start
, size
);
1093 int cpu_is_bsp(CPUState
*env
)
1095 return env
->cpuid_apic_id
== 0;
1098 CPUState
*pc_new_cpu(const char *cpu_model
)
1102 env
= cpu_init(cpu_model
);
1104 fprintf(stderr
, "Unable to find x86 CPU definition\n");
1107 env
->kvm_cpu_state
.regs_modified
= 1;
1108 if ((env
->cpuid_features
& CPUID_APIC
) || smp_cpus
> 1) {
1109 env
->cpuid_apic_id
= env
->cpu_index
;
1110 /* APIC reset callback resets cpu */
1113 qemu_register_reset((QEMUResetHandler
*)cpu_reset
, env
);
1116 /* kvm needs this to run after the apic is initialized. Otherwise,
1117 * it can access invalid state and crash.
1119 qemu_init_vcpu(env
);
1123 /* PC hardware initialisation */
1124 static void pc_init1(ram_addr_t ram_size
,
1125 const char *boot_device
,
1126 const char *kernel_filename
,
1127 const char *kernel_cmdline
,
1128 const char *initrd_filename
,
1129 const char *cpu_model
,
1133 int ret
, linux_boot
, i
;
1134 ram_addr_t ram_addr
, bios_offset
, option_rom_offset
;
1135 ram_addr_t below_4g_mem_size
, above_4g_mem_size
= 0;
1136 int bios_size
, isa_bios_size
, oprom_area_size
;
1137 int pci_option_rom_offset
= 0;
1140 int piix3_devfn
= -1;
1145 IsaIrqState
*isa_irq_state
;
1147 DriveInfo
*hd
[MAX_IDE_BUS
* MAX_IDE_DEVS
];
1148 BlockDriverState
*fd
[MAX_FD
];
1149 int using_vga
= cirrus_vga_enabled
|| std_vga_enabled
|| vmsvga_enabled
;
1152 if (ram_size
>= 0xe0000000 ) {
1153 above_4g_mem_size
= ram_size
- 0xe0000000;
1154 below_4g_mem_size
= 0xe0000000;
1156 below_4g_mem_size
= ram_size
;
1159 linux_boot
= (kernel_filename
!= NULL
);
1162 if (cpu_model
== NULL
) {
1163 #ifdef TARGET_X86_64
1164 cpu_model
= "qemu64";
1166 cpu_model
= "qemu32";
1170 if (kvm_enabled()) {
1171 kvm_set_boot_cpu_id(0);
1173 for (i
= 0; i
< smp_cpus
; i
++) {
1174 env
= pc_new_cpu(cpu_model
);
1180 ram_addr
= qemu_ram_alloc(below_4g_mem_size
);
1181 cpu_register_physical_memory(0, 0xa0000, ram_addr
);
1182 cpu_register_physical_memory(0x100000,
1183 below_4g_mem_size
- 0x100000,
1184 ram_addr
+ 0x100000);
1186 /* above 4giga memory allocation */
1187 if (above_4g_mem_size
> 0) {
1188 #if TARGET_PHYS_ADDR_BITS == 32
1189 hw_error("To much RAM for 32-bit physical address");
1191 ram_addr
= qemu_ram_alloc(above_4g_mem_size
);
1192 cpu_register_physical_memory(0x100000000ULL
,
1200 if (bios_name
== NULL
)
1201 bios_name
= BIOS_FILENAME
;
1202 filename
= qemu_find_file(QEMU_FILE_TYPE_BIOS
, bios_name
);
1204 bios_size
= get_image_size(filename
);
1208 if (bios_size
<= 0 ||
1209 (bios_size
% 65536) != 0) {
1212 bios_offset
= qemu_ram_alloc(bios_size
);
1213 ret
= load_image(filename
, qemu_get_ram_ptr(bios_offset
));
1214 if (ret
!= bios_size
) {
1216 fprintf(stderr
, "qemu: could not load PC BIOS '%s'\n", bios_name
);
1220 qemu_free(filename
);
1222 /* map the last 128KB of the BIOS in ISA space */
1223 isa_bios_size
= bios_size
;
1224 if (isa_bios_size
> (128 * 1024))
1225 isa_bios_size
= 128 * 1024;
1226 cpu_register_physical_memory(0xd0000, (192 * 1024) - isa_bios_size
,
1228 /* kvm tpr optimization needs the bios accessible for write, at least to qemu itself */
1229 cpu_register_physical_memory(0x100000 - isa_bios_size
,
1231 (bios_offset
+ bios_size
- isa_bios_size
) /* | IO_MEM_ROM */);
1233 if (extboot_drive
) {
1234 option_rom
[nb_option_roms
++] = qemu_strdup(EXTBOOT_FILENAME
);
1237 option_rom_offset
= qemu_ram_alloc(0x20000);
1238 oprom_area_size
= 0;
1239 cpu_register_physical_memory(0xc0000, 0x20000, option_rom_offset
);
1242 const char *vgabios_filename
;
1244 if (cirrus_vga_enabled
) {
1245 vgabios_filename
= VGABIOS_CIRRUS_FILENAME
;
1247 vgabios_filename
= VGABIOS_FILENAME
;
1249 oprom_area_size
= load_option_rom(vgabios_filename
, 0xc0000, 0xe0000);
1250 pci_option_rom_offset
= oprom_area_size
;
1252 /* Although video roms can grow larger than 0x8000, the area between
1253 * 0xc0000 - 0xc8000 is reserved for them. It means we won't be looking
1254 * for any other kind of option rom inside this area */
1255 if (oprom_area_size
< 0x8000)
1256 oprom_area_size
= 0x8000;
1258 /* map all the bios at the top of memory */
1259 cpu_register_physical_memory((uint32_t)(-bios_size
),
1260 bios_size
, bios_offset
| IO_MEM_ROM
);
1262 fw_cfg
= bochs_bios_init();
1265 load_linux(fw_cfg
, 0xc0000 + oprom_area_size
,
1266 kernel_filename
, initrd_filename
, kernel_cmdline
, below_4g_mem_size
);
1267 oprom_area_size
+= 2048;
1270 for (i
= 0; i
< nb_option_roms
; i
++) {
1271 oprom_area_size
+= load_option_rom(option_rom
[i
], 0xc0000 + oprom_area_size
,
1275 for (i
= 0; i
< nb_nics
; i
++) {
1276 char nic_oprom
[1024];
1277 const char *model
= nd_table
[i
].model
;
1279 if (!nd_table
[i
].bootable
)
1284 snprintf(nic_oprom
, sizeof(nic_oprom
), "pxe-%s.bin", model
);
1286 oprom_area_size
+= load_option_rom(nic_oprom
, 0xc0000 + oprom_area_size
,
1290 cpu_irq
= qemu_allocate_irqs(pic_irq_request
, NULL
, 1);
1291 #ifdef KVM_CAP_IRQCHIP
1292 if (kvm_enabled() && qemu_kvm_irqchip_in_kernel()) {
1293 isa_irq_state
= qemu_mallocz(sizeof(*isa_irq_state
));
1294 isa_irq
= i8259
= kvm_i8259_init(cpu_irq
[0]);
1298 i8259
= i8259_init(cpu_irq
[0]);
1299 isa_irq_state
= qemu_mallocz(sizeof(*isa_irq_state
));
1300 isa_irq_state
->i8259
= i8259
;
1301 isa_irq
= qemu_allocate_irqs(isa_irq_handler
, isa_irq_state
, 24);
1305 pci_bus
= i440fx_init(&i440fx_state
, &piix3_devfn
, isa_irq
);
1310 isa_bus_irqs(isa_irq
);
1312 ferr_irq
= isa_reserve_irq(13);
1314 /* init basic PC hardware */
1315 register_ioport_write(0x80, 1, 1, ioport80_write
, NULL
);
1317 register_ioport_write(0xf0, 1, 1, ioportF0_write
, NULL
);
1319 if (cirrus_vga_enabled
) {
1321 pci_cirrus_vga_init(pci_bus
);
1323 isa_cirrus_vga_init();
1325 } else if (vmsvga_enabled
) {
1327 pci_vmsvga_init(pci_bus
);
1329 fprintf(stderr
, "%s: vmware_vga: no PCI bus\n", __FUNCTION__
);
1330 } else if (std_vga_enabled
) {
1332 pci_vga_init(pci_bus
, 0, 0);
1338 rtc_state
= rtc_init(2000);
1340 qemu_register_boot_set(pc_boot_set
, rtc_state
);
1342 register_ioport_read(0x92, 1, 1, ioport92_read
, NULL
);
1343 register_ioport_write(0x92, 1, 1, ioport92_write
, NULL
);
1346 isa_irq_state
->ioapic
= ioapic_init();
1347 ioapic_irq_hack
= isa_irq
;
1349 #ifdef CONFIG_KVM_PIT
1350 if (kvm_enabled() && qemu_kvm_pit_in_kernel())
1351 pit
= kvm_pit_init(0x40, isa_reserve_irq(0));
1354 pit
= pit_init(0x40, isa_reserve_irq(0));
1360 for(i
= 0; i
< MAX_SERIAL_PORTS
; i
++) {
1361 if (serial_hds
[i
]) {
1362 serial_init(serial_io
[i
], isa_reserve_irq(serial_irq
[i
]), 115200,
1367 for(i
= 0; i
< MAX_PARALLEL_PORTS
; i
++) {
1368 if (parallel_hds
[i
]) {
1369 parallel_init(parallel_io
[i
], isa_reserve_irq(parallel_irq
[i
]),
1374 for(i
= 0; i
< nb_nics
; i
++) {
1375 NICInfo
*nd
= &nd_table
[i
];
1377 if (!pci_enabled
|| (nd
->model
&& strcmp(nd
->model
, "ne2k_isa") == 0))
1378 pc_init_ne2k_isa(nd
);
1380 pci_nic_init(nd
, "rtl8139", NULL
);
1383 piix4_acpi_system_hot_add_init(cpu_model
);
1385 if (drive_get_max_bus(IF_IDE
) >= MAX_IDE_BUS
) {
1386 fprintf(stderr
, "qemu: too many IDE bus\n");
1390 for(i
= 0; i
< MAX_IDE_BUS
* MAX_IDE_DEVS
; i
++) {
1391 hd
[i
] = drive_get(IF_IDE
, i
/ MAX_IDE_DEVS
, i
% MAX_IDE_DEVS
);
1395 pci_piix3_ide_init(pci_bus
, hd
, piix3_devfn
+ 1);
1397 for(i
= 0; i
< MAX_IDE_BUS
; i
++) {
1398 isa_ide_init(ide_iobase
[i
], ide_iobase2
[i
],
1399 isa_reserve_irq(ide_irq
[i
]),
1400 hd
[MAX_IDE_DEVS
* i
], hd
[MAX_IDE_DEVS
* i
+ 1]);
1404 isa_dev
= isa_create_simple("i8042");
1407 audio_init(pci_enabled
? pci_bus
: NULL
, isa_irq
);
1410 for(i
= 0; i
< MAX_FD
; i
++) {
1411 dinfo
= drive_get(IF_FLOPPY
, 0, i
);
1412 fd
[i
] = dinfo
? dinfo
->bdrv
: NULL
;
1414 floppy_controller
= fdctrl_init_isa(fd
);
1416 cmos_init(below_4g_mem_size
, above_4g_mem_size
, boot_device
, hd
);
1418 if (pci_enabled
&& usb_enabled
) {
1419 usb_uhci_piix3_init(pci_bus
, piix3_devfn
+ 2);
1422 if (pci_enabled
&& acpi_enabled
) {
1423 uint8_t *eeprom_buf
= qemu_mallocz(8 * 256); /* XXX: make this persistent */
1426 /* TODO: Populate SPD eeprom data. */
1427 smbus
= piix4_pm_init(pci_bus
, piix3_devfn
+ 3, 0xb100,
1428 isa_reserve_irq(9));
1429 for (i
= 0; i
< 8; i
++) {
1430 DeviceState
*eeprom
;
1431 eeprom
= qdev_create((BusState
*)smbus
, "smbus-eeprom");
1432 qdev_prop_set_uint32(eeprom
, "address", 0x50 + i
);
1433 qdev_prop_set_ptr(eeprom
, "data", eeprom_buf
+ (i
* 256));
1439 i440fx_init_memory_mappings(i440fx_state
);
1446 max_bus
= drive_get_max_bus(IF_SCSI
);
1447 for (bus
= 0; bus
<= max_bus
; bus
++) {
1448 pci_create_simple(pci_bus
, -1, "lsi53c895a");
1452 if (extboot_drive
) {
1453 DriveInfo
*info
= extboot_drive
;
1454 int cyls
, heads
, secs
;
1456 if (info
->type
!= IF_IDE
&& info
->type
!= IF_VIRTIO
) {
1457 bdrv_guess_geometry(info
->bdrv
, &cyls
, &heads
, &secs
);
1458 bdrv_set_geometry_hint(info
->bdrv
, cyls
, heads
, secs
);
1461 extboot_init(info
->bdrv
, 1);
1464 /* Add virtio console devices */
1466 for(i
= 0; i
< MAX_VIRTIO_CONSOLES
; i
++) {
1467 if (virtcon_hds
[i
]) {
1468 pci_create_simple(pci_bus
, -1, "virtio-console-pci");
1473 #ifdef CONFIG_KVM_DEVICE_ASSIGNMENT
1474 if (kvm_enabled()) {
1475 add_assigned_devices(pci_bus
, assigned_devices
, assigned_devices_index
);
1476 assigned_dev_load_option_roms(pci_option_rom_offset
);
1478 #endif /* CONFIG_KVM_DEVICE_ASSIGNMENT */
1481 static void pc_init_pci(ram_addr_t ram_size
,
1482 const char *boot_device
,
1483 const char *kernel_filename
,
1484 const char *kernel_cmdline
,
1485 const char *initrd_filename
,
1486 const char *cpu_model
)
1488 pc_init1(ram_size
, boot_device
,
1489 kernel_filename
, kernel_cmdline
,
1490 initrd_filename
, cpu_model
, 1);
1493 static void pc_init_isa(ram_addr_t ram_size
,
1494 const char *boot_device
,
1495 const char *kernel_filename
,
1496 const char *kernel_cmdline
,
1497 const char *initrd_filename
,
1498 const char *cpu_model
)
1500 if (cpu_model
== NULL
)
1502 pc_init1(ram_size
, boot_device
,
1503 kernel_filename
, kernel_cmdline
,
1504 initrd_filename
, cpu_model
, 0);
1507 /* set CMOS shutdown status register (index 0xF) as S3_resume(0xFE)
1508 BIOS will read it and start S3 resume at POST Entry */
1509 void cmos_set_s3_resume(void)
1512 rtc_set_memory(rtc_state
, 0xF, 0xFE);
1515 static QEMUMachine pc_machine
= {
1518 .desc
= "Standard PC",
1519 .init
= pc_init_pci
,
1524 static QEMUMachine pc_machine_v0_10
= {
1526 .desc
= "Standard PC, qemu 0.10",
1527 .init
= pc_init_pci
,
1529 .compat_props
= (CompatProperty
[]) {
1531 .driver
= "virtio-blk-pci",
1532 .property
= "class",
1533 .value
= stringify(PCI_CLASS_STORAGE_OTHER
),
1535 .driver
= "virtio-console-pci",
1536 .property
= "class",
1537 .value
= stringify(PCI_CLASS_DISPLAY_OTHER
),
1539 .driver
= "virtio-net-pci",
1540 .property
= "vectors",
1541 .value
= stringify(0),
1543 .driver
= "virtio-blk-pci",
1544 .property
= "vectors",
1545 .value
= stringify(0),
1547 { /* end of list */ }
1551 static QEMUMachine isapc_machine
= {
1553 .desc
= "ISA-only PC",
1554 .init
= pc_init_isa
,
1558 static void pc_machine_init(void)
1560 qemu_register_machine(&pc_machine
);
1561 qemu_register_machine(&pc_machine_v0_10
);
1562 qemu_register_machine(&isapc_machine
);
1565 machine_init(pc_machine_init
);