2 * QEMU PC System Emulator
4 * Copyright (c) 2003-2004 Fabrice Bellard
6 * Permission is hereby granted, free of charge, to any person obtaining a copy
7 * of this software and associated documentation files (the "Software"), to deal
8 * in the Software without restriction, including without limitation the rights
9 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
10 * copies of the Software, and to permit persons to whom the Software is
11 * furnished to do so, subject to the following conditions:
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
19 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
29 #include "vmware_vga.h"
36 #include "audio/audio.h"
42 #include "hpet_emul.h"
48 #include "multiboot.h"
51 /* output Bochs bios info messages */
54 #define BIOS_FILENAME "bios.bin"
56 #define PC_MAX_BIOS_SIZE (4 * 1024 * 1024)
58 /* Leave a chunk of memory at the top of RAM for the BIOS ACPI tables. */
59 #define ACPI_DATA_SIZE 0x10000
60 #define BIOS_CFG_IOPORT 0x510
61 #define FW_CFG_ACPI_TABLES (FW_CFG_ARCH_LOCAL + 0)
62 #define FW_CFG_SMBIOS_ENTRIES (FW_CFG_ARCH_LOCAL + 1)
63 #define FW_CFG_IRQ0_OVERRIDE (FW_CFG_ARCH_LOCAL + 2)
64 #define FW_CFG_E820_TABLE (FW_CFG_ARCH_LOCAL + 3)
68 #define E820_NR_ENTRIES 16
78 struct e820_entry entry
[E820_NR_ENTRIES
];
81 static struct e820_table e820_table
;
83 typedef struct isa_irq_state
{
88 static void isa_irq_handler(void *opaque
, int n
, int level
)
90 IsaIrqState
*isa
= (IsaIrqState
*)opaque
;
93 qemu_set_irq(isa
->i8259
[n
], level
);
96 qemu_set_irq(isa
->ioapic
[n
], level
);
99 static void ioport80_write(void *opaque
, uint32_t addr
, uint32_t data
)
103 /* MSDOS compatibility mode FPU exception support */
104 static qemu_irq ferr_irq
;
106 void pc_register_ferr_irq(qemu_irq irq
)
111 /* XXX: add IGNNE support */
112 void cpu_set_ferr(CPUX86State
*s
)
114 qemu_irq_raise(ferr_irq
);
117 static void ioportF0_write(void *opaque
, uint32_t addr
, uint32_t data
)
119 qemu_irq_lower(ferr_irq
);
123 uint64_t cpu_get_tsc(CPUX86State
*env
)
125 return cpu_get_ticks();
130 static cpu_set_smm_t smm_set
;
131 static void *smm_arg
;
133 void cpu_smm_register(cpu_set_smm_t callback
, void *arg
)
135 assert(smm_set
== NULL
);
136 assert(smm_arg
== NULL
);
141 void cpu_smm_update(CPUState
*env
)
143 if (smm_set
&& smm_arg
&& env
== first_cpu
)
144 smm_set(!!(env
->hflags
& HF_SMM_MASK
), smm_arg
);
149 int cpu_get_pic_interrupt(CPUState
*env
)
153 intno
= apic_get_interrupt(env
);
155 /* set irq request if a PIC irq is still pending */
156 /* XXX: improve that */
157 pic_update_irq(isa_pic
);
160 /* read the irq from the PIC */
161 if (!apic_accept_pic_intr(env
))
164 intno
= pic_read_irq(isa_pic
);
168 static void pic_irq_request(void *opaque
, int irq
, int level
)
170 CPUState
*env
= first_cpu
;
172 if (env
->apic_state
) {
174 if (apic_accept_pic_intr(env
))
175 apic_deliver_pic_intr(env
, level
);
180 cpu_interrupt(env
, CPU_INTERRUPT_HARD
);
182 cpu_reset_interrupt(env
, CPU_INTERRUPT_HARD
);
186 /* PC cmos mappings */
188 #define REG_EQUIPMENT_BYTE 0x14
190 static int cmos_get_fd_drive_type(int fd0
)
196 /* 1.44 Mb 3"5 drive */
200 /* 2.88 Mb 3"5 drive */
204 /* 1.2 Mb 5"5 drive */
214 static void cmos_init_hd(int type_ofs
, int info_ofs
, BlockDriverState
*hd
,
217 int cylinders
, heads
, sectors
;
218 bdrv_get_geometry_hint(hd
, &cylinders
, &heads
, §ors
);
219 rtc_set_memory(s
, type_ofs
, 47);
220 rtc_set_memory(s
, info_ofs
, cylinders
);
221 rtc_set_memory(s
, info_ofs
+ 1, cylinders
>> 8);
222 rtc_set_memory(s
, info_ofs
+ 2, heads
);
223 rtc_set_memory(s
, info_ofs
+ 3, 0xff);
224 rtc_set_memory(s
, info_ofs
+ 4, 0xff);
225 rtc_set_memory(s
, info_ofs
+ 5, 0xc0 | ((heads
> 8) << 3));
226 rtc_set_memory(s
, info_ofs
+ 6, cylinders
);
227 rtc_set_memory(s
, info_ofs
+ 7, cylinders
>> 8);
228 rtc_set_memory(s
, info_ofs
+ 8, sectors
);
231 /* convert boot_device letter to something recognizable by the bios */
232 static int boot_device2nibble(char boot_device
)
234 switch(boot_device
) {
237 return 0x01; /* floppy boot */
239 return 0x02; /* hard drive boot */
241 return 0x03; /* CD-ROM boot */
243 return 0x04; /* Network boot */
248 static int set_boot_dev(RTCState
*s
, const char *boot_device
, int fd_bootchk
)
250 #define PC_MAX_BOOT_DEVICES 3
251 int nbds
, bds
[3] = { 0, };
254 nbds
= strlen(boot_device
);
255 if (nbds
> PC_MAX_BOOT_DEVICES
) {
256 error_report("Too many boot devices for PC");
259 for (i
= 0; i
< nbds
; i
++) {
260 bds
[i
] = boot_device2nibble(boot_device
[i
]);
262 error_report("Invalid boot device for PC: '%c'",
267 rtc_set_memory(s
, 0x3d, (bds
[1] << 4) | bds
[0]);
268 rtc_set_memory(s
, 0x38, (bds
[2] << 4) | (fd_bootchk
? 0x0 : 0x1));
272 static int pc_boot_set(void *opaque
, const char *boot_device
)
274 return set_boot_dev(opaque
, boot_device
, 0);
277 /* hd_table must contain 4 block drivers */
278 static void cmos_init(ram_addr_t ram_size
, ram_addr_t above_4g_mem_size
,
279 const char *boot_device
, DriveInfo
**hd_table
,
280 FDCtrl
*floppy_controller
, RTCState
*s
)
286 /* various important CMOS locations needed by PC/Bochs bios */
289 val
= 640; /* base memory in K */
290 rtc_set_memory(s
, 0x15, val
);
291 rtc_set_memory(s
, 0x16, val
>> 8);
293 val
= (ram_size
/ 1024) - 1024;
296 rtc_set_memory(s
, 0x17, val
);
297 rtc_set_memory(s
, 0x18, val
>> 8);
298 rtc_set_memory(s
, 0x30, val
);
299 rtc_set_memory(s
, 0x31, val
>> 8);
301 if (above_4g_mem_size
) {
302 rtc_set_memory(s
, 0x5b, (unsigned int)above_4g_mem_size
>> 16);
303 rtc_set_memory(s
, 0x5c, (unsigned int)above_4g_mem_size
>> 24);
304 rtc_set_memory(s
, 0x5d, (uint64_t)above_4g_mem_size
>> 32);
307 if (ram_size
> (16 * 1024 * 1024))
308 val
= (ram_size
/ 65536) - ((16 * 1024 * 1024) / 65536);
313 rtc_set_memory(s
, 0x34, val
);
314 rtc_set_memory(s
, 0x35, val
>> 8);
316 /* set the number of CPU */
317 rtc_set_memory(s
, 0x5f, smp_cpus
- 1);
319 /* set boot devices, and disable floppy signature check if requested */
320 if (set_boot_dev(s
, boot_device
, fd_bootchk
)) {
326 fd0
= fdctrl_get_drive_type(floppy_controller
, 0);
327 fd1
= fdctrl_get_drive_type(floppy_controller
, 1);
329 val
= (cmos_get_fd_drive_type(fd0
) << 4) | cmos_get_fd_drive_type(fd1
);
330 rtc_set_memory(s
, 0x10, val
);
342 val
|= 0x01; /* 1 drive, ready for boot */
345 val
|= 0x41; /* 2 drives, ready for boot */
348 val
|= 0x02; /* FPU is there */
349 val
|= 0x04; /* PS/2 mouse installed */
350 rtc_set_memory(s
, REG_EQUIPMENT_BYTE
, val
);
354 rtc_set_memory(s
, 0x12, (hd_table
[0] ? 0xf0 : 0) | (hd_table
[1] ? 0x0f : 0));
356 cmos_init_hd(0x19, 0x1b, hd_table
[0]->bdrv
, s
);
358 cmos_init_hd(0x1a, 0x24, hd_table
[1]->bdrv
, s
);
361 for (i
= 0; i
< 4; i
++) {
363 int cylinders
, heads
, sectors
, translation
;
364 /* NOTE: bdrv_get_geometry_hint() returns the physical
365 geometry. It is always such that: 1 <= sects <= 63, 1
366 <= heads <= 16, 1 <= cylinders <= 16383. The BIOS
367 geometry can be different if a translation is done. */
368 translation
= bdrv_get_translation_hint(hd_table
[i
]->bdrv
);
369 if (translation
== BIOS_ATA_TRANSLATION_AUTO
) {
370 bdrv_get_geometry_hint(hd_table
[i
]->bdrv
, &cylinders
, &heads
, §ors
);
371 if (cylinders
<= 1024 && heads
<= 16 && sectors
<= 63) {
372 /* No translation. */
375 /* LBA translation. */
381 val
|= translation
<< (i
* 2);
384 rtc_set_memory(s
, 0x39, val
);
387 void ioport_set_a20(int enable
)
389 /* XXX: send to all CPUs ? */
390 cpu_x86_set_a20(first_cpu
, enable
);
393 int ioport_get_a20(void)
395 return ((first_cpu
->a20_mask
>> 20) & 1);
398 static void ioport92_write(void *opaque
, uint32_t addr
, uint32_t val
)
400 ioport_set_a20((val
>> 1) & 1);
401 /* XXX: bit 0 is fast reset */
404 static uint32_t ioport92_read(void *opaque
, uint32_t addr
)
406 return ioport_get_a20() << 1;
409 /***********************************************************/
410 /* Bochs BIOS debug ports */
412 static void bochs_bios_write(void *opaque
, uint32_t addr
, uint32_t val
)
414 static const char shutdown_str
[8] = "Shutdown";
415 static int shutdown_index
= 0;
418 /* Bochs BIOS messages */
421 fprintf(stderr
, "BIOS panic at rombios.c, line %d\n", val
);
426 fprintf(stderr
, "%c", val
);
430 /* same as Bochs power off */
431 if (val
== shutdown_str
[shutdown_index
]) {
433 if (shutdown_index
== 8) {
435 qemu_system_shutdown_request();
442 /* LGPL'ed VGA BIOS messages */
445 fprintf(stderr
, "VGA BIOS panic, line %d\n", val
);
450 fprintf(stderr
, "%c", val
);
456 int e820_add_entry(uint64_t address
, uint64_t length
, uint32_t type
)
458 int index
= e820_table
.count
;
459 struct e820_entry
*entry
;
461 if (index
>= E820_NR_ENTRIES
)
463 entry
= &e820_table
.entry
[index
];
465 entry
->address
= address
;
466 entry
->length
= length
;
470 return e820_table
.count
;
473 static void *bochs_bios_init(void)
476 uint8_t *smbios_table
;
478 uint64_t *numa_fw_cfg
;
481 register_ioport_write(0x400, 1, 2, bochs_bios_write
, NULL
);
482 register_ioport_write(0x401, 1, 2, bochs_bios_write
, NULL
);
483 register_ioport_write(0x402, 1, 1, bochs_bios_write
, NULL
);
484 register_ioport_write(0x403, 1, 1, bochs_bios_write
, NULL
);
485 register_ioport_write(0x8900, 1, 1, bochs_bios_write
, NULL
);
487 register_ioport_write(0x501, 1, 2, bochs_bios_write
, NULL
);
488 register_ioport_write(0x502, 1, 2, bochs_bios_write
, NULL
);
489 register_ioport_write(0x500, 1, 1, bochs_bios_write
, NULL
);
490 register_ioport_write(0x503, 1, 1, bochs_bios_write
, NULL
);
492 fw_cfg
= fw_cfg_init(BIOS_CFG_IOPORT
, BIOS_CFG_IOPORT
+ 1, 0, 0);
494 fw_cfg_add_i32(fw_cfg
, FW_CFG_ID
, 1);
495 fw_cfg_add_i64(fw_cfg
, FW_CFG_RAM_SIZE
, (uint64_t)ram_size
);
496 fw_cfg_add_bytes(fw_cfg
, FW_CFG_ACPI_TABLES
, (uint8_t *)acpi_tables
,
498 fw_cfg_add_bytes(fw_cfg
, FW_CFG_IRQ0_OVERRIDE
, &irq0override
, 1);
500 smbios_table
= smbios_get_table(&smbios_len
);
502 fw_cfg_add_bytes(fw_cfg
, FW_CFG_SMBIOS_ENTRIES
,
503 smbios_table
, smbios_len
);
504 fw_cfg_add_bytes(fw_cfg
, FW_CFG_E820_TABLE
, (uint8_t *)&e820_table
,
505 sizeof(struct e820_table
));
507 /* allocate memory for the NUMA channel: one (64bit) word for the number
508 * of nodes, one word for each VCPU->node and one word for each node to
509 * hold the amount of memory.
511 numa_fw_cfg
= qemu_mallocz((1 + smp_cpus
+ nb_numa_nodes
) * 8);
512 numa_fw_cfg
[0] = cpu_to_le64(nb_numa_nodes
);
513 for (i
= 0; i
< smp_cpus
; i
++) {
514 for (j
= 0; j
< nb_numa_nodes
; j
++) {
515 if (node_cpumask
[j
] & (1 << i
)) {
516 numa_fw_cfg
[i
+ 1] = cpu_to_le64(j
);
521 for (i
= 0; i
< nb_numa_nodes
; i
++) {
522 numa_fw_cfg
[smp_cpus
+ 1 + i
] = cpu_to_le64(node_mem
[i
]);
524 fw_cfg_add_bytes(fw_cfg
, FW_CFG_NUMA
, (uint8_t *)numa_fw_cfg
,
525 (1 + smp_cpus
+ nb_numa_nodes
) * 8);
530 static long get_file_size(FILE *f
)
534 /* XXX: on Unix systems, using fstat() probably makes more sense */
537 fseek(f
, 0, SEEK_END
);
539 fseek(f
, where
, SEEK_SET
);
544 static void load_linux(void *fw_cfg
,
545 const char *kernel_filename
,
546 const char *initrd_filename
,
547 const char *kernel_cmdline
,
548 target_phys_addr_t max_ram_size
)
551 int setup_size
, kernel_size
, initrd_size
= 0, cmdline_size
;
553 uint8_t header
[8192], *setup
, *kernel
, *initrd_data
;
554 target_phys_addr_t real_addr
, prot_addr
, cmdline_addr
, initrd_addr
= 0;
558 /* Align to 16 bytes as a paranoia measure */
559 cmdline_size
= (strlen(kernel_cmdline
)+16) & ~15;
561 /* load the kernel header */
562 f
= fopen(kernel_filename
, "rb");
563 if (!f
|| !(kernel_size
= get_file_size(f
)) ||
564 fread(header
, 1, MIN(ARRAY_SIZE(header
), kernel_size
), f
) !=
565 MIN(ARRAY_SIZE(header
), kernel_size
)) {
566 fprintf(stderr
, "qemu: could not load kernel '%s': %s\n",
567 kernel_filename
, strerror(errno
));
571 /* kernel protocol version */
573 fprintf(stderr
, "header magic: %#x\n", ldl_p(header
+0x202));
575 if (ldl_p(header
+0x202) == 0x53726448)
576 protocol
= lduw_p(header
+0x206);
578 /* This looks like a multiboot kernel. If it is, let's stop
579 treating it like a Linux kernel. */
580 if (load_multiboot(fw_cfg
, f
, kernel_filename
, initrd_filename
,
581 kernel_cmdline
, kernel_size
, header
))
586 if (protocol
< 0x200 || !(header
[0x211] & 0x01)) {
589 cmdline_addr
= 0x9a000 - cmdline_size
;
591 } else if (protocol
< 0x202) {
592 /* High but ancient kernel */
594 cmdline_addr
= 0x9a000 - cmdline_size
;
595 prot_addr
= 0x100000;
597 /* High and recent kernel */
599 cmdline_addr
= 0x20000;
600 prot_addr
= 0x100000;
605 "qemu: real_addr = 0x" TARGET_FMT_plx
"\n"
606 "qemu: cmdline_addr = 0x" TARGET_FMT_plx
"\n"
607 "qemu: prot_addr = 0x" TARGET_FMT_plx
"\n",
613 /* highest address for loading the initrd */
614 if (protocol
>= 0x203)
615 initrd_max
= ldl_p(header
+0x22c);
617 initrd_max
= 0x37ffffff;
619 if (initrd_max
>= max_ram_size
-ACPI_DATA_SIZE
)
620 initrd_max
= max_ram_size
-ACPI_DATA_SIZE
-1;
622 fw_cfg_add_i32(fw_cfg
, FW_CFG_CMDLINE_ADDR
, cmdline_addr
);
623 fw_cfg_add_i32(fw_cfg
, FW_CFG_CMDLINE_SIZE
, strlen(kernel_cmdline
)+1);
624 fw_cfg_add_bytes(fw_cfg
, FW_CFG_CMDLINE_DATA
,
625 (uint8_t*)strdup(kernel_cmdline
),
626 strlen(kernel_cmdline
)+1);
628 if (protocol
>= 0x202) {
629 stl_p(header
+0x228, cmdline_addr
);
631 stw_p(header
+0x20, 0xA33F);
632 stw_p(header
+0x22, cmdline_addr
-real_addr
);
635 /* handle vga= parameter */
636 vmode
= strstr(kernel_cmdline
, "vga=");
638 unsigned int video_mode
;
641 if (!strncmp(vmode
, "normal", 6)) {
643 } else if (!strncmp(vmode
, "ext", 3)) {
645 } else if (!strncmp(vmode
, "ask", 3)) {
648 video_mode
= strtol(vmode
, NULL
, 0);
650 stw_p(header
+0x1fa, video_mode
);
654 /* High nybble = B reserved for Qemu; low nybble is revision number.
655 If this code is substantially changed, you may want to consider
656 incrementing the revision. */
657 if (protocol
>= 0x200)
658 header
[0x210] = 0xB0;
661 if (protocol
>= 0x201) {
662 header
[0x211] |= 0x80; /* CAN_USE_HEAP */
663 stw_p(header
+0x224, cmdline_addr
-real_addr
-0x200);
667 if (initrd_filename
) {
668 if (protocol
< 0x200) {
669 fprintf(stderr
, "qemu: linux kernel too old to load a ram disk\n");
673 initrd_size
= get_image_size(initrd_filename
);
674 if (initrd_size
< 0) {
675 fprintf(stderr
, "qemu: error reading initrd %s\n",
680 initrd_addr
= (initrd_max
-initrd_size
) & ~4095;
682 initrd_data
= qemu_malloc(initrd_size
);
683 load_image(initrd_filename
, initrd_data
);
685 fw_cfg_add_i32(fw_cfg
, FW_CFG_INITRD_ADDR
, initrd_addr
);
686 fw_cfg_add_i32(fw_cfg
, FW_CFG_INITRD_SIZE
, initrd_size
);
687 fw_cfg_add_bytes(fw_cfg
, FW_CFG_INITRD_DATA
, initrd_data
, initrd_size
);
689 stl_p(header
+0x218, initrd_addr
);
690 stl_p(header
+0x21c, initrd_size
);
693 /* load kernel and setup */
694 setup_size
= header
[0x1f1];
697 setup_size
= (setup_size
+1)*512;
698 kernel_size
-= setup_size
;
700 setup
= qemu_malloc(setup_size
);
701 kernel
= qemu_malloc(kernel_size
);
702 fseek(f
, 0, SEEK_SET
);
703 if (fread(setup
, 1, setup_size
, f
) != setup_size
) {
704 fprintf(stderr
, "fread() failed\n");
707 if (fread(kernel
, 1, kernel_size
, f
) != kernel_size
) {
708 fprintf(stderr
, "fread() failed\n");
712 memcpy(setup
, header
, MIN(sizeof(header
), setup_size
));
714 fw_cfg_add_i32(fw_cfg
, FW_CFG_KERNEL_ADDR
, prot_addr
);
715 fw_cfg_add_i32(fw_cfg
, FW_CFG_KERNEL_SIZE
, kernel_size
);
716 fw_cfg_add_bytes(fw_cfg
, FW_CFG_KERNEL_DATA
, kernel
, kernel_size
);
718 fw_cfg_add_i32(fw_cfg
, FW_CFG_SETUP_ADDR
, real_addr
);
719 fw_cfg_add_i32(fw_cfg
, FW_CFG_SETUP_SIZE
, setup_size
);
720 fw_cfg_add_bytes(fw_cfg
, FW_CFG_SETUP_DATA
, setup
, setup_size
);
722 option_rom
[nb_option_roms
] = "linuxboot.bin";
726 static const int ide_iobase
[2] = { 0x1f0, 0x170 };
727 static const int ide_iobase2
[2] = { 0x3f6, 0x376 };
728 static const int ide_irq
[2] = { 14, 15 };
730 #define NE2000_NB_MAX 6
732 static const int ne2000_io
[NE2000_NB_MAX
] = { 0x300, 0x320, 0x340, 0x360,
734 static const int ne2000_irq
[NE2000_NB_MAX
] = { 9, 10, 11, 3, 4, 5 };
736 static const int parallel_io
[MAX_PARALLEL_PORTS
] = { 0x378, 0x278, 0x3bc };
737 static const int parallel_irq
[MAX_PARALLEL_PORTS
] = { 7, 7, 7 };
740 static void audio_init (PCIBus
*pci_bus
, qemu_irq
*pic
)
744 for (c
= soundhw
; c
->name
; ++c
) {
747 c
->init
.init_isa(pic
);
750 c
->init
.init_pci(pci_bus
);
758 static void pc_init_ne2k_isa(NICInfo
*nd
)
760 static int nb_ne2k
= 0;
762 if (nb_ne2k
== NE2000_NB_MAX
)
764 isa_ne2000_init(ne2000_io
[nb_ne2k
],
765 ne2000_irq
[nb_ne2k
], nd
);
769 int cpu_is_bsp(CPUState
*env
)
771 /* We hard-wire the BSP to the first CPU. */
772 return env
->cpu_index
== 0;
775 /* set CMOS shutdown status register (index 0xF) as S3_resume(0xFE)
776 BIOS will read it and start S3 resume at POST Entry */
777 static void cmos_set_s3_resume(void *opaque
, int irq
, int level
)
779 RTCState
*s
= opaque
;
782 rtc_set_memory(s
, 0xF, 0xFE);
786 static void acpi_smi_interrupt(void *opaque
, int irq
, int level
)
788 CPUState
*s
= opaque
;
791 cpu_interrupt(s
, CPU_INTERRUPT_SMI
);
795 static CPUState
*pc_new_cpu(const char *cpu_model
)
799 env
= cpu_init(cpu_model
);
801 fprintf(stderr
, "Unable to find x86 CPU definition\n");
804 if ((env
->cpuid_features
& CPUID_APIC
) || smp_cpus
> 1) {
805 env
->cpuid_apic_id
= env
->cpu_index
;
806 /* APIC reset callback resets cpu */
809 qemu_register_reset((QEMUResetHandler
*)cpu_reset
, env
);
814 static void pc_cpus_init(const char *cpu_model
)
819 if (cpu_model
== NULL
) {
821 cpu_model
= "qemu64";
823 cpu_model
= "qemu32";
827 for(i
= 0; i
< smp_cpus
; i
++) {
828 pc_new_cpu(cpu_model
);
832 static qemu_irq
*pc_allocate_cpu_irq(void)
834 return qemu_allocate_irqs(pic_irq_request
, NULL
, 1);
837 static void pc_memory_init(ram_addr_t ram_size
,
838 const char *kernel_filename
,
839 const char *kernel_cmdline
,
840 const char *initrd_filename
,
841 ram_addr_t
*below_4g_mem_size_p
,
842 ram_addr_t
*above_4g_mem_size_p
)
845 int ret
, linux_boot
, i
;
846 ram_addr_t ram_addr
, bios_offset
, option_rom_offset
;
847 ram_addr_t below_4g_mem_size
, above_4g_mem_size
= 0;
848 int bios_size
, isa_bios_size
;
851 if (ram_size
>= 0xe0000000 ) {
852 above_4g_mem_size
= ram_size
- 0xe0000000;
853 below_4g_mem_size
= 0xe0000000;
855 below_4g_mem_size
= ram_size
;
857 *above_4g_mem_size_p
= above_4g_mem_size
;
858 *below_4g_mem_size_p
= below_4g_mem_size
;
860 linux_boot
= (kernel_filename
!= NULL
);
863 ram_addr
= qemu_ram_alloc(below_4g_mem_size
);
864 cpu_register_physical_memory(0, 0xa0000, ram_addr
);
865 cpu_register_physical_memory(0x100000,
866 below_4g_mem_size
- 0x100000,
867 ram_addr
+ 0x100000);
869 /* above 4giga memory allocation */
870 if (above_4g_mem_size
> 0) {
871 #if TARGET_PHYS_ADDR_BITS == 32
872 hw_error("To much RAM for 32-bit physical address");
874 ram_addr
= qemu_ram_alloc(above_4g_mem_size
);
875 cpu_register_physical_memory(0x100000000ULL
,
883 if (bios_name
== NULL
)
884 bios_name
= BIOS_FILENAME
;
885 filename
= qemu_find_file(QEMU_FILE_TYPE_BIOS
, bios_name
);
887 bios_size
= get_image_size(filename
);
891 if (bios_size
<= 0 ||
892 (bios_size
% 65536) != 0) {
895 bios_offset
= qemu_ram_alloc(bios_size
);
896 ret
= rom_add_file_fixed(bios_name
, (uint32_t)(-bios_size
));
899 fprintf(stderr
, "qemu: could not load PC BIOS '%s'\n", bios_name
);
905 /* map the last 128KB of the BIOS in ISA space */
906 isa_bios_size
= bios_size
;
907 if (isa_bios_size
> (128 * 1024))
908 isa_bios_size
= 128 * 1024;
909 cpu_register_physical_memory(0x100000 - isa_bios_size
,
911 (bios_offset
+ bios_size
- isa_bios_size
) | IO_MEM_ROM
);
913 option_rom_offset
= qemu_ram_alloc(PC_ROM_SIZE
);
914 cpu_register_physical_memory(PC_ROM_MIN_VGA
, PC_ROM_SIZE
, option_rom_offset
);
916 /* map all the bios at the top of memory */
917 cpu_register_physical_memory((uint32_t)(-bios_size
),
918 bios_size
, bios_offset
| IO_MEM_ROM
);
920 fw_cfg
= bochs_bios_init();
924 load_linux(*fw_cfg
, kernel_filename
, initrd_filename
, kernel_cmdline
, below_4g_mem_size
);
927 for (i
= 0; i
< nb_option_roms
; i
++) {
928 rom_add_option(option_rom
[i
]);
932 /* PC hardware initialisation */
933 static void pc_init1(ram_addr_t ram_size
,
934 const char *boot_device
,
935 const char *kernel_filename
,
936 const char *kernel_cmdline
,
937 const char *initrd_filename
,
938 const char *cpu_model
,
942 ram_addr_t below_4g_mem_size
, above_4g_mem_size
;
944 PCII440FXState
*i440fx_state
;
945 int piix3_devfn
= -1;
951 IsaIrqState
*isa_irq_state
;
952 DriveInfo
*hd
[MAX_IDE_BUS
* MAX_IDE_DEVS
];
953 DriveInfo
*fd
[MAX_FD
];
954 FDCtrl
*floppy_controller
;
958 pc_cpus_init(cpu_model
);
962 /* allocate ram and load rom/bios */
963 pc_memory_init(ram_size
, kernel_filename
, kernel_cmdline
, initrd_filename
,
964 &below_4g_mem_size
, &above_4g_mem_size
);
966 cpu_irq
= pc_allocate_cpu_irq();
967 i8259
= i8259_init(cpu_irq
[0]);
968 isa_irq_state
= qemu_mallocz(sizeof(*isa_irq_state
));
969 isa_irq_state
->i8259
= i8259
;
971 isa_irq_state
->ioapic
= ioapic_init();
973 isa_irq
= qemu_allocate_irqs(isa_irq_handler
, isa_irq_state
, 24);
976 pci_bus
= i440fx_init(&i440fx_state
, &piix3_devfn
, isa_irq
, ram_size
);
981 isa_bus_irqs(isa_irq
);
983 pc_register_ferr_irq(isa_reserve_irq(13));
985 /* init basic PC hardware */
986 register_ioport_write(0x80, 1, 1, ioport80_write
, NULL
);
988 register_ioport_write(0xf0, 1, 1, ioportF0_write
, NULL
);
990 if (cirrus_vga_enabled
) {
992 pci_cirrus_vga_init(pci_bus
);
994 isa_cirrus_vga_init();
996 } else if (vmsvga_enabled
) {
998 pci_vmsvga_init(pci_bus
);
1000 fprintf(stderr
, "%s: vmware_vga: no PCI bus\n", __FUNCTION__
);
1001 } else if (std_vga_enabled
) {
1003 pci_vga_init(pci_bus
, 0, 0);
1009 rtc_state
= rtc_init(2000);
1011 qemu_register_boot_set(pc_boot_set
, rtc_state
);
1013 register_ioport_read(0x92, 1, 1, ioport92_read
, NULL
);
1014 register_ioport_write(0x92, 1, 1, ioport92_write
, NULL
);
1016 pit
= pit_init(0x40, isa_reserve_irq(0));
1022 for(i
= 0; i
< MAX_SERIAL_PORTS
; i
++) {
1023 if (serial_hds
[i
]) {
1024 serial_isa_init(i
, serial_hds
[i
]);
1028 for(i
= 0; i
< MAX_PARALLEL_PORTS
; i
++) {
1029 if (parallel_hds
[i
]) {
1030 parallel_init(i
, parallel_hds
[i
]);
1034 for(i
= 0; i
< nb_nics
; i
++) {
1035 NICInfo
*nd
= &nd_table
[i
];
1037 if (!pci_enabled
|| (nd
->model
&& strcmp(nd
->model
, "ne2k_isa") == 0))
1038 pc_init_ne2k_isa(nd
);
1040 pci_nic_init_nofail(nd
, "e1000", NULL
);
1043 if (drive_get_max_bus(IF_IDE
) >= MAX_IDE_BUS
) {
1044 fprintf(stderr
, "qemu: too many IDE bus\n");
1048 for(i
= 0; i
< MAX_IDE_BUS
* MAX_IDE_DEVS
; i
++) {
1049 hd
[i
] = drive_get(IF_IDE
, i
/ MAX_IDE_DEVS
, i
% MAX_IDE_DEVS
);
1053 pci_piix3_ide_init(pci_bus
, hd
, piix3_devfn
+ 1);
1055 for(i
= 0; i
< MAX_IDE_BUS
; i
++) {
1056 isa_ide_init(ide_iobase
[i
], ide_iobase2
[i
], ide_irq
[i
],
1057 hd
[MAX_IDE_DEVS
* i
], hd
[MAX_IDE_DEVS
* i
+ 1]);
1061 isa_create_simple("i8042");
1064 audio_init(pci_enabled
? pci_bus
: NULL
, isa_irq
);
1067 for(i
= 0; i
< MAX_FD
; i
++) {
1068 fd
[i
] = drive_get(IF_FLOPPY
, 0, i
);
1070 floppy_controller
= fdctrl_init_isa(fd
);
1072 cmos_init(below_4g_mem_size
, above_4g_mem_size
, boot_device
, hd
,
1073 floppy_controller
, rtc_state
);
1075 if (pci_enabled
&& usb_enabled
) {
1076 usb_uhci_piix3_init(pci_bus
, piix3_devfn
+ 2);
1079 if (pci_enabled
&& acpi_enabled
) {
1080 uint8_t *eeprom_buf
= qemu_mallocz(8 * 256); /* XXX: make this persistent */
1083 cmos_s3
= qemu_allocate_irqs(cmos_set_s3_resume
, rtc_state
, 1);
1084 smi_irq
= qemu_allocate_irqs(acpi_smi_interrupt
, first_cpu
, 1);
1085 /* TODO: Populate SPD eeprom data. */
1086 smbus
= piix4_pm_init(pci_bus
, piix3_devfn
+ 3, 0xb100,
1087 isa_reserve_irq(9), *cmos_s3
, *smi_irq
,
1089 for (i
= 0; i
< 8; i
++) {
1090 DeviceState
*eeprom
;
1091 eeprom
= qdev_create((BusState
*)smbus
, "smbus-eeprom");
1092 qdev_prop_set_uint8(eeprom
, "address", 0x50 + i
);
1093 qdev_prop_set_ptr(eeprom
, "data", eeprom_buf
+ (i
* 256));
1094 qdev_init_nofail(eeprom
);
1096 piix4_acpi_system_hot_add_init(pci_bus
);
1100 i440fx_init_memory_mappings(i440fx_state
);
1107 max_bus
= drive_get_max_bus(IF_SCSI
);
1108 for (bus
= 0; bus
<= max_bus
; bus
++) {
1109 pci_create_simple(pci_bus
, -1, "lsi53c895a");
1114 static void pc_init_pci(ram_addr_t ram_size
,
1115 const char *boot_device
,
1116 const char *kernel_filename
,
1117 const char *kernel_cmdline
,
1118 const char *initrd_filename
,
1119 const char *cpu_model
)
1121 pc_init1(ram_size
, boot_device
,
1122 kernel_filename
, kernel_cmdline
,
1123 initrd_filename
, cpu_model
, 1);
1126 static void pc_init_isa(ram_addr_t ram_size
,
1127 const char *boot_device
,
1128 const char *kernel_filename
,
1129 const char *kernel_cmdline
,
1130 const char *initrd_filename
,
1131 const char *cpu_model
)
1133 if (cpu_model
== NULL
)
1135 pc_init1(ram_size
, boot_device
,
1136 kernel_filename
, kernel_cmdline
,
1137 initrd_filename
, cpu_model
, 0);
1140 static QEMUMachine pc_machine
= {
1143 .desc
= "Standard PC",
1144 .init
= pc_init_pci
,
1149 static QEMUMachine pc_machine_v0_12
= {
1151 .desc
= "Standard PC",
1152 .init
= pc_init_pci
,
1154 .compat_props
= (GlobalProperty
[]) {
1156 .driver
= "virtio-serial-pci",
1157 .property
= "max_nr_ports",
1158 .value
= stringify(1),
1160 .driver
= "virtio-serial-pci",
1161 .property
= "vectors",
1162 .value
= stringify(0),
1164 { /* end of list */ }
1168 static QEMUMachine pc_machine_v0_11
= {
1170 .desc
= "Standard PC, qemu 0.11",
1171 .init
= pc_init_pci
,
1173 .compat_props
= (GlobalProperty
[]) {
1175 .driver
= "virtio-blk-pci",
1176 .property
= "vectors",
1177 .value
= stringify(0),
1179 .driver
= "virtio-serial-pci",
1180 .property
= "max_nr_ports",
1181 .value
= stringify(1),
1183 .driver
= "virtio-serial-pci",
1184 .property
= "vectors",
1185 .value
= stringify(0),
1187 .driver
= "ide-drive",
1191 .driver
= "scsi-disk",
1196 .property
= "rombar",
1197 .value
= stringify(0),
1199 { /* end of list */ }
1203 static QEMUMachine pc_machine_v0_10
= {
1205 .desc
= "Standard PC, qemu 0.10",
1206 .init
= pc_init_pci
,
1208 .compat_props
= (GlobalProperty
[]) {
1210 .driver
= "virtio-blk-pci",
1211 .property
= "class",
1212 .value
= stringify(PCI_CLASS_STORAGE_OTHER
),
1214 .driver
= "virtio-serial-pci",
1215 .property
= "class",
1216 .value
= stringify(PCI_CLASS_DISPLAY_OTHER
),
1218 .driver
= "virtio-serial-pci",
1219 .property
= "max_nr_ports",
1220 .value
= stringify(1),
1222 .driver
= "virtio-serial-pci",
1223 .property
= "vectors",
1224 .value
= stringify(0),
1226 .driver
= "virtio-net-pci",
1227 .property
= "vectors",
1228 .value
= stringify(0),
1230 .driver
= "virtio-blk-pci",
1231 .property
= "vectors",
1232 .value
= stringify(0),
1234 .driver
= "ide-drive",
1238 .driver
= "scsi-disk",
1243 .property
= "rombar",
1244 .value
= stringify(0),
1246 { /* end of list */ }
1250 static QEMUMachine isapc_machine
= {
1252 .desc
= "ISA-only PC",
1253 .init
= pc_init_isa
,
1257 static void pc_machine_init(void)
1259 qemu_register_machine(&pc_machine
);
1260 qemu_register_machine(&pc_machine_v0_12
);
1261 qemu_register_machine(&pc_machine_v0_11
);
1262 qemu_register_machine(&pc_machine_v0_10
);
1263 qemu_register_machine(&isapc_machine
);
1266 machine_init(pc_machine_init
);