2 * QEMU PC System Emulator
4 * Copyright (c) 2003-2004 Fabrice Bellard
6 * Permission is hereby granted, free of charge, to any person obtaining a copy
7 * of this software and associated documentation files (the "Software"), to deal
8 * in the Software without restriction, including without limitation the rights
9 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
10 * copies of the Software, and to permit persons to whom the Software is
11 * furnished to do so, subject to the following conditions:
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
19 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
28 #include "vmware_vga.h"
35 #include "audio/audio.h"
41 #include "hpet_emul.h"
47 #include "multiboot.h"
49 /* output Bochs bios info messages */
52 #define BIOS_FILENAME "bios.bin"
54 #define PC_MAX_BIOS_SIZE (4 * 1024 * 1024)
56 /* Leave a chunk of memory at the top of RAM for the BIOS ACPI tables. */
57 #define ACPI_DATA_SIZE 0x10000
58 #define BIOS_CFG_IOPORT 0x510
59 #define FW_CFG_ACPI_TABLES (FW_CFG_ARCH_LOCAL + 0)
60 #define FW_CFG_SMBIOS_ENTRIES (FW_CFG_ARCH_LOCAL + 1)
61 #define FW_CFG_IRQ0_OVERRIDE (FW_CFG_ARCH_LOCAL + 2)
62 #define FW_CFG_E820_TABLE (FW_CFG_ARCH_LOCAL + 3)
66 static FDCtrl
*floppy_controller
;
67 static RTCState
*rtc_state
;
69 static PCII440FXState
*i440fx_state
;
71 #define E820_NR_ENTRIES 16
81 struct e820_entry entry
[E820_NR_ENTRIES
];
84 static struct e820_table e820_table
;
86 typedef struct isa_irq_state
{
91 static void isa_irq_handler(void *opaque
, int n
, int level
)
93 IsaIrqState
*isa
= (IsaIrqState
*)opaque
;
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
;
108 /* XXX: add IGNNE support */
109 void cpu_set_ferr(CPUX86State
*s
)
111 qemu_irq_raise(ferr_irq
);
114 static void ioportF0_write(void *opaque
, uint32_t addr
, uint32_t data
)
116 qemu_irq_lower(ferr_irq
);
120 uint64_t cpu_get_tsc(CPUX86State
*env
)
122 return cpu_get_ticks();
126 void cpu_smm_update(CPUState
*env
)
128 if (i440fx_state
&& env
== first_cpu
)
129 i440fx_set_smm(i440fx_state
, (env
->hflags
>> HF_SMM_SHIFT
) & 1);
134 int cpu_get_pic_interrupt(CPUState
*env
)
138 intno
= apic_get_interrupt(env
);
140 /* set irq request if a PIC irq is still pending */
141 /* XXX: improve that */
142 pic_update_irq(isa_pic
);
145 /* read the irq from the PIC */
146 if (!apic_accept_pic_intr(env
))
149 intno
= pic_read_irq(isa_pic
);
153 static void pic_irq_request(void *opaque
, int irq
, int level
)
155 CPUState
*env
= first_cpu
;
157 if (env
->apic_state
) {
159 if (apic_accept_pic_intr(env
))
160 apic_deliver_pic_intr(env
, level
);
165 cpu_interrupt(env
, CPU_INTERRUPT_HARD
);
167 cpu_reset_interrupt(env
, CPU_INTERRUPT_HARD
);
171 /* PC cmos mappings */
173 #define REG_EQUIPMENT_BYTE 0x14
175 static int cmos_get_fd_drive_type(int fd0
)
181 /* 1.44 Mb 3"5 drive */
185 /* 2.88 Mb 3"5 drive */
189 /* 1.2 Mb 5"5 drive */
199 static void cmos_init_hd(int type_ofs
, int info_ofs
, BlockDriverState
*hd
)
201 RTCState
*s
= rtc_state
;
202 int cylinders
, heads
, sectors
;
203 bdrv_get_geometry_hint(hd
, &cylinders
, &heads
, §ors
);
204 rtc_set_memory(s
, type_ofs
, 47);
205 rtc_set_memory(s
, info_ofs
, cylinders
);
206 rtc_set_memory(s
, info_ofs
+ 1, cylinders
>> 8);
207 rtc_set_memory(s
, info_ofs
+ 2, heads
);
208 rtc_set_memory(s
, info_ofs
+ 3, 0xff);
209 rtc_set_memory(s
, info_ofs
+ 4, 0xff);
210 rtc_set_memory(s
, info_ofs
+ 5, 0xc0 | ((heads
> 8) << 3));
211 rtc_set_memory(s
, info_ofs
+ 6, cylinders
);
212 rtc_set_memory(s
, info_ofs
+ 7, cylinders
>> 8);
213 rtc_set_memory(s
, info_ofs
+ 8, sectors
);
216 /* convert boot_device letter to something recognizable by the bios */
217 static int boot_device2nibble(char boot_device
)
219 switch(boot_device
) {
222 return 0x01; /* floppy boot */
224 return 0x02; /* hard drive boot */
226 return 0x03; /* CD-ROM boot */
228 return 0x04; /* Network boot */
233 static int set_boot_dev(RTCState
*s
, const char *boot_device
, int fd_bootchk
)
235 #define PC_MAX_BOOT_DEVICES 3
236 int nbds
, bds
[3] = { 0, };
239 nbds
= strlen(boot_device
);
240 if (nbds
> PC_MAX_BOOT_DEVICES
) {
241 error_report("Too many boot devices for PC");
244 for (i
= 0; i
< nbds
; i
++) {
245 bds
[i
] = boot_device2nibble(boot_device
[i
]);
247 error_report("Invalid boot device for PC: '%c'",
252 rtc_set_memory(s
, 0x3d, (bds
[1] << 4) | bds
[0]);
253 rtc_set_memory(s
, 0x38, (bds
[2] << 4) | (fd_bootchk
? 0x0 : 0x1));
257 static int pc_boot_set(void *opaque
, const char *boot_device
)
259 return set_boot_dev(opaque
, boot_device
, 0);
262 /* hd_table must contain 4 block drivers */
263 static void cmos_init(ram_addr_t ram_size
, ram_addr_t above_4g_mem_size
,
264 const char *boot_device
, DriveInfo
**hd_table
)
266 RTCState
*s
= rtc_state
;
271 /* various important CMOS locations needed by PC/Bochs bios */
274 val
= 640; /* base memory in K */
275 rtc_set_memory(s
, 0x15, val
);
276 rtc_set_memory(s
, 0x16, val
>> 8);
278 val
= (ram_size
/ 1024) - 1024;
281 rtc_set_memory(s
, 0x17, val
);
282 rtc_set_memory(s
, 0x18, val
>> 8);
283 rtc_set_memory(s
, 0x30, val
);
284 rtc_set_memory(s
, 0x31, val
>> 8);
286 if (above_4g_mem_size
) {
287 rtc_set_memory(s
, 0x5b, (unsigned int)above_4g_mem_size
>> 16);
288 rtc_set_memory(s
, 0x5c, (unsigned int)above_4g_mem_size
>> 24);
289 rtc_set_memory(s
, 0x5d, (uint64_t)above_4g_mem_size
>> 32);
292 if (ram_size
> (16 * 1024 * 1024))
293 val
= (ram_size
/ 65536) - ((16 * 1024 * 1024) / 65536);
298 rtc_set_memory(s
, 0x34, val
);
299 rtc_set_memory(s
, 0x35, val
>> 8);
301 /* set the number of CPU */
302 rtc_set_memory(s
, 0x5f, smp_cpus
- 1);
304 /* set boot devices, and disable floppy signature check if requested */
305 if (set_boot_dev(s
, boot_device
, fd_bootchk
)) {
311 fd0
= fdctrl_get_drive_type(floppy_controller
, 0);
312 fd1
= fdctrl_get_drive_type(floppy_controller
, 1);
314 val
= (cmos_get_fd_drive_type(fd0
) << 4) | cmos_get_fd_drive_type(fd1
);
315 rtc_set_memory(s
, 0x10, val
);
327 val
|= 0x01; /* 1 drive, ready for boot */
330 val
|= 0x41; /* 2 drives, ready for boot */
333 val
|= 0x02; /* FPU is there */
334 val
|= 0x04; /* PS/2 mouse installed */
335 rtc_set_memory(s
, REG_EQUIPMENT_BYTE
, val
);
339 rtc_set_memory(s
, 0x12, (hd_table
[0] ? 0xf0 : 0) | (hd_table
[1] ? 0x0f : 0));
341 cmos_init_hd(0x19, 0x1b, hd_table
[0]->bdrv
);
343 cmos_init_hd(0x1a, 0x24, hd_table
[1]->bdrv
);
346 for (i
= 0; i
< 4; i
++) {
348 int cylinders
, heads
, sectors
, translation
;
349 /* NOTE: bdrv_get_geometry_hint() returns the physical
350 geometry. It is always such that: 1 <= sects <= 63, 1
351 <= heads <= 16, 1 <= cylinders <= 16383. The BIOS
352 geometry can be different if a translation is done. */
353 translation
= bdrv_get_translation_hint(hd_table
[i
]->bdrv
);
354 if (translation
== BIOS_ATA_TRANSLATION_AUTO
) {
355 bdrv_get_geometry_hint(hd_table
[i
]->bdrv
, &cylinders
, &heads
, §ors
);
356 if (cylinders
<= 1024 && heads
<= 16 && sectors
<= 63) {
357 /* No translation. */
360 /* LBA translation. */
366 val
|= translation
<< (i
* 2);
369 rtc_set_memory(s
, 0x39, val
);
372 void ioport_set_a20(int enable
)
374 /* XXX: send to all CPUs ? */
375 cpu_x86_set_a20(first_cpu
, enable
);
378 int ioport_get_a20(void)
380 return ((first_cpu
->a20_mask
>> 20) & 1);
383 static void ioport92_write(void *opaque
, uint32_t addr
, uint32_t val
)
385 ioport_set_a20((val
>> 1) & 1);
386 /* XXX: bit 0 is fast reset */
389 static uint32_t ioport92_read(void *opaque
, uint32_t addr
)
391 return ioport_get_a20() << 1;
394 /***********************************************************/
395 /* Bochs BIOS debug ports */
397 static void bochs_bios_write(void *opaque
, uint32_t addr
, uint32_t val
)
399 static const char shutdown_str
[8] = "Shutdown";
400 static int shutdown_index
= 0;
403 /* Bochs BIOS messages */
406 fprintf(stderr
, "BIOS panic at rombios.c, line %d\n", val
);
411 fprintf(stderr
, "%c", val
);
415 /* same as Bochs power off */
416 if (val
== shutdown_str
[shutdown_index
]) {
418 if (shutdown_index
== 8) {
420 qemu_system_shutdown_request();
427 /* LGPL'ed VGA BIOS messages */
430 fprintf(stderr
, "VGA BIOS panic, line %d\n", val
);
435 fprintf(stderr
, "%c", val
);
441 int e820_add_entry(uint64_t address
, uint64_t length
, uint32_t type
)
443 int index
= e820_table
.count
;
444 struct e820_entry
*entry
;
446 if (index
>= E820_NR_ENTRIES
)
448 entry
= &e820_table
.entry
[index
];
450 entry
->address
= address
;
451 entry
->length
= length
;
455 return e820_table
.count
;
458 static void *bochs_bios_init(void)
461 uint8_t *smbios_table
;
463 uint64_t *numa_fw_cfg
;
466 register_ioport_write(0x400, 1, 2, bochs_bios_write
, NULL
);
467 register_ioport_write(0x401, 1, 2, bochs_bios_write
, NULL
);
468 register_ioport_write(0x402, 1, 1, bochs_bios_write
, NULL
);
469 register_ioport_write(0x403, 1, 1, bochs_bios_write
, NULL
);
470 register_ioport_write(0x8900, 1, 1, bochs_bios_write
, NULL
);
472 register_ioport_write(0x501, 1, 2, bochs_bios_write
, NULL
);
473 register_ioport_write(0x502, 1, 2, bochs_bios_write
, NULL
);
474 register_ioport_write(0x500, 1, 1, bochs_bios_write
, NULL
);
475 register_ioport_write(0x503, 1, 1, bochs_bios_write
, NULL
);
477 fw_cfg
= fw_cfg_init(BIOS_CFG_IOPORT
, BIOS_CFG_IOPORT
+ 1, 0, 0);
479 fw_cfg_add_i32(fw_cfg
, FW_CFG_ID
, 1);
480 fw_cfg_add_i64(fw_cfg
, FW_CFG_RAM_SIZE
, (uint64_t)ram_size
);
481 fw_cfg_add_bytes(fw_cfg
, FW_CFG_ACPI_TABLES
, (uint8_t *)acpi_tables
,
483 fw_cfg_add_bytes(fw_cfg
, FW_CFG_IRQ0_OVERRIDE
, &irq0override
, 1);
485 smbios_table
= smbios_get_table(&smbios_len
);
487 fw_cfg_add_bytes(fw_cfg
, FW_CFG_SMBIOS_ENTRIES
,
488 smbios_table
, smbios_len
);
489 fw_cfg_add_bytes(fw_cfg
, FW_CFG_E820_TABLE
, (uint8_t *)&e820_table
,
490 sizeof(struct e820_table
));
492 /* allocate memory for the NUMA channel: one (64bit) word for the number
493 * of nodes, one word for each VCPU->node and one word for each node to
494 * hold the amount of memory.
496 numa_fw_cfg
= qemu_mallocz((1 + smp_cpus
+ nb_numa_nodes
) * 8);
497 numa_fw_cfg
[0] = cpu_to_le64(nb_numa_nodes
);
498 for (i
= 0; i
< smp_cpus
; i
++) {
499 for (j
= 0; j
< nb_numa_nodes
; j
++) {
500 if (node_cpumask
[j
] & (1 << i
)) {
501 numa_fw_cfg
[i
+ 1] = cpu_to_le64(j
);
506 for (i
= 0; i
< nb_numa_nodes
; i
++) {
507 numa_fw_cfg
[smp_cpus
+ 1 + i
] = cpu_to_le64(node_mem
[i
]);
509 fw_cfg_add_bytes(fw_cfg
, FW_CFG_NUMA
, (uint8_t *)numa_fw_cfg
,
510 (1 + smp_cpus
+ nb_numa_nodes
) * 8);
515 static long get_file_size(FILE *f
)
519 /* XXX: on Unix systems, using fstat() probably makes more sense */
522 fseek(f
, 0, SEEK_END
);
524 fseek(f
, where
, SEEK_SET
);
529 static void load_linux(void *fw_cfg
,
530 const char *kernel_filename
,
531 const char *initrd_filename
,
532 const char *kernel_cmdline
,
533 target_phys_addr_t max_ram_size
)
536 int setup_size
, kernel_size
, initrd_size
= 0, cmdline_size
;
538 uint8_t header
[8192], *setup
, *kernel
, *initrd_data
;
539 target_phys_addr_t real_addr
, prot_addr
, cmdline_addr
, initrd_addr
= 0;
543 /* Align to 16 bytes as a paranoia measure */
544 cmdline_size
= (strlen(kernel_cmdline
)+16) & ~15;
546 /* load the kernel header */
547 f
= fopen(kernel_filename
, "rb");
548 if (!f
|| !(kernel_size
= get_file_size(f
)) ||
549 fread(header
, 1, MIN(ARRAY_SIZE(header
), kernel_size
), f
) !=
550 MIN(ARRAY_SIZE(header
), kernel_size
)) {
551 fprintf(stderr
, "qemu: could not load kernel '%s': %s\n",
552 kernel_filename
, strerror(errno
));
556 /* kernel protocol version */
558 fprintf(stderr
, "header magic: %#x\n", ldl_p(header
+0x202));
560 if (ldl_p(header
+0x202) == 0x53726448)
561 protocol
= lduw_p(header
+0x206);
563 /* This looks like a multiboot kernel. If it is, let's stop
564 treating it like a Linux kernel. */
565 if (load_multiboot(fw_cfg
, f
, kernel_filename
, initrd_filename
,
566 kernel_cmdline
, kernel_size
, header
))
571 if (protocol
< 0x200 || !(header
[0x211] & 0x01)) {
574 cmdline_addr
= 0x9a000 - cmdline_size
;
576 } else if (protocol
< 0x202) {
577 /* High but ancient kernel */
579 cmdline_addr
= 0x9a000 - cmdline_size
;
580 prot_addr
= 0x100000;
582 /* High and recent kernel */
584 cmdline_addr
= 0x20000;
585 prot_addr
= 0x100000;
590 "qemu: real_addr = 0x" TARGET_FMT_plx
"\n"
591 "qemu: cmdline_addr = 0x" TARGET_FMT_plx
"\n"
592 "qemu: prot_addr = 0x" TARGET_FMT_plx
"\n",
598 /* highest address for loading the initrd */
599 if (protocol
>= 0x203)
600 initrd_max
= ldl_p(header
+0x22c);
602 initrd_max
= 0x37ffffff;
604 if (initrd_max
>= max_ram_size
-ACPI_DATA_SIZE
)
605 initrd_max
= max_ram_size
-ACPI_DATA_SIZE
-1;
607 fw_cfg_add_i32(fw_cfg
, FW_CFG_CMDLINE_ADDR
, cmdline_addr
);
608 fw_cfg_add_i32(fw_cfg
, FW_CFG_CMDLINE_SIZE
, strlen(kernel_cmdline
)+1);
609 fw_cfg_add_bytes(fw_cfg
, FW_CFG_CMDLINE_DATA
,
610 (uint8_t*)strdup(kernel_cmdline
),
611 strlen(kernel_cmdline
)+1);
613 if (protocol
>= 0x202) {
614 stl_p(header
+0x228, cmdline_addr
);
616 stw_p(header
+0x20, 0xA33F);
617 stw_p(header
+0x22, cmdline_addr
-real_addr
);
620 /* handle vga= parameter */
621 vmode
= strstr(kernel_cmdline
, "vga=");
623 unsigned int video_mode
;
626 if (!strncmp(vmode
, "normal", 6)) {
628 } else if (!strncmp(vmode
, "ext", 3)) {
630 } else if (!strncmp(vmode
, "ask", 3)) {
633 video_mode
= strtol(vmode
, NULL
, 0);
635 stw_p(header
+0x1fa, video_mode
);
639 /* High nybble = B reserved for Qemu; low nybble is revision number.
640 If this code is substantially changed, you may want to consider
641 incrementing the revision. */
642 if (protocol
>= 0x200)
643 header
[0x210] = 0xB0;
646 if (protocol
>= 0x201) {
647 header
[0x211] |= 0x80; /* CAN_USE_HEAP */
648 stw_p(header
+0x224, cmdline_addr
-real_addr
-0x200);
652 if (initrd_filename
) {
653 if (protocol
< 0x200) {
654 fprintf(stderr
, "qemu: linux kernel too old to load a ram disk\n");
658 initrd_size
= get_image_size(initrd_filename
);
659 initrd_addr
= (initrd_max
-initrd_size
) & ~4095;
661 initrd_data
= qemu_malloc(initrd_size
);
662 load_image(initrd_filename
, initrd_data
);
664 fw_cfg_add_i32(fw_cfg
, FW_CFG_INITRD_ADDR
, initrd_addr
);
665 fw_cfg_add_i32(fw_cfg
, FW_CFG_INITRD_SIZE
, initrd_size
);
666 fw_cfg_add_bytes(fw_cfg
, FW_CFG_INITRD_DATA
, initrd_data
, initrd_size
);
668 stl_p(header
+0x218, initrd_addr
);
669 stl_p(header
+0x21c, initrd_size
);
672 /* load kernel and setup */
673 setup_size
= header
[0x1f1];
676 setup_size
= (setup_size
+1)*512;
677 kernel_size
-= setup_size
;
679 setup
= qemu_malloc(setup_size
);
680 kernel
= qemu_malloc(kernel_size
);
681 fseek(f
, 0, SEEK_SET
);
682 if (fread(setup
, 1, setup_size
, f
) != setup_size
) {
683 fprintf(stderr
, "fread() failed\n");
686 if (fread(kernel
, 1, kernel_size
, f
) != kernel_size
) {
687 fprintf(stderr
, "fread() failed\n");
691 memcpy(setup
, header
, MIN(sizeof(header
), setup_size
));
693 fw_cfg_add_i32(fw_cfg
, FW_CFG_KERNEL_ADDR
, prot_addr
);
694 fw_cfg_add_i32(fw_cfg
, FW_CFG_KERNEL_SIZE
, kernel_size
);
695 fw_cfg_add_bytes(fw_cfg
, FW_CFG_KERNEL_DATA
, kernel
, kernel_size
);
697 fw_cfg_add_i32(fw_cfg
, FW_CFG_SETUP_ADDR
, real_addr
);
698 fw_cfg_add_i32(fw_cfg
, FW_CFG_SETUP_SIZE
, setup_size
);
699 fw_cfg_add_bytes(fw_cfg
, FW_CFG_SETUP_DATA
, setup
, setup_size
);
701 option_rom
[nb_option_roms
] = "linuxboot.bin";
705 static const int ide_iobase
[2] = { 0x1f0, 0x170 };
706 static const int ide_iobase2
[2] = { 0x3f6, 0x376 };
707 static const int ide_irq
[2] = { 14, 15 };
709 #define NE2000_NB_MAX 6
711 static const int ne2000_io
[NE2000_NB_MAX
] = { 0x300, 0x320, 0x340, 0x360,
713 static const int ne2000_irq
[NE2000_NB_MAX
] = { 9, 10, 11, 3, 4, 5 };
715 static const int parallel_io
[MAX_PARALLEL_PORTS
] = { 0x378, 0x278, 0x3bc };
716 static const int parallel_irq
[MAX_PARALLEL_PORTS
] = { 7, 7, 7 };
719 static void audio_init (PCIBus
*pci_bus
, qemu_irq
*pic
)
723 for (c
= soundhw
; c
->name
; ++c
) {
726 c
->init
.init_isa(pic
);
729 c
->init
.init_pci(pci_bus
);
737 static void pc_init_ne2k_isa(NICInfo
*nd
)
739 static int nb_ne2k
= 0;
741 if (nb_ne2k
== NE2000_NB_MAX
)
743 isa_ne2000_init(ne2000_io
[nb_ne2k
],
744 ne2000_irq
[nb_ne2k
], nd
);
748 int cpu_is_bsp(CPUState
*env
)
750 /* We hard-wire the BSP to the first CPU. */
751 return env
->cpu_index
== 0;
754 static CPUState
*pc_new_cpu(const char *cpu_model
)
758 env
= cpu_init(cpu_model
);
760 fprintf(stderr
, "Unable to find x86 CPU definition\n");
763 if ((env
->cpuid_features
& CPUID_APIC
) || smp_cpus
> 1) {
764 env
->cpuid_apic_id
= env
->cpu_index
;
765 /* APIC reset callback resets cpu */
768 qemu_register_reset((QEMUResetHandler
*)cpu_reset
, env
);
773 /* PC hardware initialisation */
774 static void pc_init1(ram_addr_t ram_size
,
775 const char *boot_device
,
776 const char *kernel_filename
,
777 const char *kernel_cmdline
,
778 const char *initrd_filename
,
779 const char *cpu_model
,
783 int ret
, linux_boot
, i
;
784 ram_addr_t ram_addr
, bios_offset
, option_rom_offset
;
785 ram_addr_t below_4g_mem_size
, above_4g_mem_size
= 0;
786 int bios_size
, isa_bios_size
;
789 int piix3_devfn
= -1;
794 IsaIrqState
*isa_irq_state
;
795 DriveInfo
*hd
[MAX_IDE_BUS
* MAX_IDE_DEVS
];
796 DriveInfo
*fd
[MAX_FD
];
799 if (ram_size
>= 0xe0000000 ) {
800 above_4g_mem_size
= ram_size
- 0xe0000000;
801 below_4g_mem_size
= 0xe0000000;
803 below_4g_mem_size
= ram_size
;
806 linux_boot
= (kernel_filename
!= NULL
);
809 if (cpu_model
== NULL
) {
811 cpu_model
= "qemu64";
813 cpu_model
= "qemu32";
817 for (i
= 0; i
< smp_cpus
; i
++) {
818 env
= pc_new_cpu(cpu_model
);
824 ram_addr
= qemu_ram_alloc(below_4g_mem_size
);
825 cpu_register_physical_memory(0, 0xa0000, ram_addr
);
826 cpu_register_physical_memory(0x100000,
827 below_4g_mem_size
- 0x100000,
828 ram_addr
+ 0x100000);
830 /* above 4giga memory allocation */
831 if (above_4g_mem_size
> 0) {
832 #if TARGET_PHYS_ADDR_BITS == 32
833 hw_error("To much RAM for 32-bit physical address");
835 ram_addr
= qemu_ram_alloc(above_4g_mem_size
);
836 cpu_register_physical_memory(0x100000000ULL
,
844 if (bios_name
== NULL
)
845 bios_name
= BIOS_FILENAME
;
846 filename
= qemu_find_file(QEMU_FILE_TYPE_BIOS
, bios_name
);
848 bios_size
= get_image_size(filename
);
852 if (bios_size
<= 0 ||
853 (bios_size
% 65536) != 0) {
856 bios_offset
= qemu_ram_alloc(bios_size
);
857 ret
= rom_add_file_fixed(bios_name
, (uint32_t)(-bios_size
));
860 fprintf(stderr
, "qemu: could not load PC BIOS '%s'\n", bios_name
);
866 /* map the last 128KB of the BIOS in ISA space */
867 isa_bios_size
= bios_size
;
868 if (isa_bios_size
> (128 * 1024))
869 isa_bios_size
= 128 * 1024;
870 cpu_register_physical_memory(0x100000 - isa_bios_size
,
872 (bios_offset
+ bios_size
- isa_bios_size
) | IO_MEM_ROM
);
874 option_rom_offset
= qemu_ram_alloc(PC_ROM_SIZE
);
875 cpu_register_physical_memory(PC_ROM_MIN_VGA
, PC_ROM_SIZE
, option_rom_offset
);
877 /* map all the bios at the top of memory */
878 cpu_register_physical_memory((uint32_t)(-bios_size
),
879 bios_size
, bios_offset
| IO_MEM_ROM
);
881 fw_cfg
= bochs_bios_init();
885 load_linux(fw_cfg
, kernel_filename
, initrd_filename
, kernel_cmdline
, below_4g_mem_size
);
888 for (i
= 0; i
< nb_option_roms
; i
++) {
889 rom_add_option(option_rom
[i
]);
892 cpu_irq
= qemu_allocate_irqs(pic_irq_request
, NULL
, 1);
893 i8259
= i8259_init(cpu_irq
[0]);
894 isa_irq_state
= qemu_mallocz(sizeof(*isa_irq_state
));
895 isa_irq_state
->i8259
= i8259
;
896 isa_irq
= qemu_allocate_irqs(isa_irq_handler
, isa_irq_state
, 24);
899 pci_bus
= i440fx_init(&i440fx_state
, &piix3_devfn
, isa_irq
);
904 isa_bus_irqs(isa_irq
);
906 ferr_irq
= isa_reserve_irq(13);
908 /* init basic PC hardware */
909 register_ioport_write(0x80, 1, 1, ioport80_write
, NULL
);
911 register_ioport_write(0xf0, 1, 1, ioportF0_write
, NULL
);
913 if (cirrus_vga_enabled
) {
915 pci_cirrus_vga_init(pci_bus
);
917 isa_cirrus_vga_init();
919 } else if (vmsvga_enabled
) {
921 pci_vmsvga_init(pci_bus
);
923 fprintf(stderr
, "%s: vmware_vga: no PCI bus\n", __FUNCTION__
);
924 } else if (std_vga_enabled
) {
926 pci_vga_init(pci_bus
, 0, 0);
932 rtc_state
= rtc_init(2000);
934 qemu_register_boot_set(pc_boot_set
, rtc_state
);
936 register_ioport_read(0x92, 1, 1, ioport92_read
, NULL
);
937 register_ioport_write(0x92, 1, 1, ioport92_write
, NULL
);
940 isa_irq_state
->ioapic
= ioapic_init();
942 pit
= pit_init(0x40, isa_reserve_irq(0));
948 for(i
= 0; i
< MAX_SERIAL_PORTS
; i
++) {
950 serial_isa_init(i
, serial_hds
[i
]);
954 for(i
= 0; i
< MAX_PARALLEL_PORTS
; i
++) {
955 if (parallel_hds
[i
]) {
956 parallel_init(i
, parallel_hds
[i
]);
960 for(i
= 0; i
< nb_nics
; i
++) {
961 NICInfo
*nd
= &nd_table
[i
];
963 if (!pci_enabled
|| (nd
->model
&& strcmp(nd
->model
, "ne2k_isa") == 0))
964 pc_init_ne2k_isa(nd
);
966 pci_nic_init_nofail(nd
, "e1000", NULL
);
969 if (drive_get_max_bus(IF_IDE
) >= MAX_IDE_BUS
) {
970 fprintf(stderr
, "qemu: too many IDE bus\n");
974 for(i
= 0; i
< MAX_IDE_BUS
* MAX_IDE_DEVS
; i
++) {
975 hd
[i
] = drive_get(IF_IDE
, i
/ MAX_IDE_DEVS
, i
% MAX_IDE_DEVS
);
979 pci_piix3_ide_init(pci_bus
, hd
, piix3_devfn
+ 1);
981 for(i
= 0; i
< MAX_IDE_BUS
; i
++) {
982 isa_ide_init(ide_iobase
[i
], ide_iobase2
[i
], ide_irq
[i
],
983 hd
[MAX_IDE_DEVS
* i
], hd
[MAX_IDE_DEVS
* i
+ 1]);
987 isa_dev
= isa_create_simple("i8042");
990 audio_init(pci_enabled
? pci_bus
: NULL
, isa_irq
);
993 for(i
= 0; i
< MAX_FD
; i
++) {
994 fd
[i
] = drive_get(IF_FLOPPY
, 0, i
);
996 floppy_controller
= fdctrl_init_isa(fd
);
998 cmos_init(below_4g_mem_size
, above_4g_mem_size
, boot_device
, hd
);
1000 if (pci_enabled
&& usb_enabled
) {
1001 usb_uhci_piix3_init(pci_bus
, piix3_devfn
+ 2);
1004 if (pci_enabled
&& acpi_enabled
) {
1005 uint8_t *eeprom_buf
= qemu_mallocz(8 * 256); /* XXX: make this persistent */
1008 /* TODO: Populate SPD eeprom data. */
1009 smbus
= piix4_pm_init(pci_bus
, piix3_devfn
+ 3, 0xb100,
1010 isa_reserve_irq(9));
1011 for (i
= 0; i
< 8; i
++) {
1012 DeviceState
*eeprom
;
1013 eeprom
= qdev_create((BusState
*)smbus
, "smbus-eeprom");
1014 qdev_prop_set_uint8(eeprom
, "address", 0x50 + i
);
1015 qdev_prop_set_ptr(eeprom
, "data", eeprom_buf
+ (i
* 256));
1016 qdev_init_nofail(eeprom
);
1018 piix4_acpi_system_hot_add_init(pci_bus
);
1022 i440fx_init_memory_mappings(i440fx_state
);
1029 max_bus
= drive_get_max_bus(IF_SCSI
);
1030 for (bus
= 0; bus
<= max_bus
; bus
++) {
1031 pci_create_simple(pci_bus
, -1, "lsi53c895a");
1036 static void pc_init_pci(ram_addr_t ram_size
,
1037 const char *boot_device
,
1038 const char *kernel_filename
,
1039 const char *kernel_cmdline
,
1040 const char *initrd_filename
,
1041 const char *cpu_model
)
1043 pc_init1(ram_size
, boot_device
,
1044 kernel_filename
, kernel_cmdline
,
1045 initrd_filename
, cpu_model
, 1);
1048 static void pc_init_isa(ram_addr_t ram_size
,
1049 const char *boot_device
,
1050 const char *kernel_filename
,
1051 const char *kernel_cmdline
,
1052 const char *initrd_filename
,
1053 const char *cpu_model
)
1055 if (cpu_model
== NULL
)
1057 pc_init1(ram_size
, boot_device
,
1058 kernel_filename
, kernel_cmdline
,
1059 initrd_filename
, cpu_model
, 0);
1062 /* set CMOS shutdown status register (index 0xF) as S3_resume(0xFE)
1063 BIOS will read it and start S3 resume at POST Entry */
1064 void cmos_set_s3_resume(void)
1067 rtc_set_memory(rtc_state
, 0xF, 0xFE);
1070 static QEMUMachine pc_machine
= {
1073 .desc
= "Standard PC",
1074 .init
= pc_init_pci
,
1079 static QEMUMachine pc_machine_v0_12
= {
1081 .desc
= "Standard PC",
1082 .init
= pc_init_pci
,
1084 .compat_props
= (GlobalProperty
[]) {
1086 .driver
= "virtio-serial-pci",
1087 .property
= "max_nr_ports",
1088 .value
= stringify(1),
1090 .driver
= "virtio-serial-pci",
1091 .property
= "vectors",
1092 .value
= stringify(0),
1094 { /* end of list */ }
1098 static QEMUMachine pc_machine_v0_11
= {
1100 .desc
= "Standard PC, qemu 0.11",
1101 .init
= pc_init_pci
,
1103 .compat_props
= (GlobalProperty
[]) {
1105 .driver
= "virtio-blk-pci",
1106 .property
= "vectors",
1107 .value
= stringify(0),
1109 .driver
= "virtio-serial-pci",
1110 .property
= "max_nr_ports",
1111 .value
= stringify(1),
1113 .driver
= "virtio-serial-pci",
1114 .property
= "vectors",
1115 .value
= stringify(0),
1117 .driver
= "ide-drive",
1121 .driver
= "scsi-disk",
1126 .property
= "rombar",
1127 .value
= stringify(0),
1129 { /* end of list */ }
1133 static QEMUMachine pc_machine_v0_10
= {
1135 .desc
= "Standard PC, qemu 0.10",
1136 .init
= pc_init_pci
,
1138 .compat_props
= (GlobalProperty
[]) {
1140 .driver
= "virtio-blk-pci",
1141 .property
= "class",
1142 .value
= stringify(PCI_CLASS_STORAGE_OTHER
),
1144 .driver
= "virtio-serial-pci",
1145 .property
= "class",
1146 .value
= stringify(PCI_CLASS_DISPLAY_OTHER
),
1148 .driver
= "virtio-serial-pci",
1149 .property
= "max_nr_ports",
1150 .value
= stringify(1),
1152 .driver
= "virtio-serial-pci",
1153 .property
= "vectors",
1154 .value
= stringify(0),
1156 .driver
= "virtio-net-pci",
1157 .property
= "vectors",
1158 .value
= stringify(0),
1160 .driver
= "virtio-blk-pci",
1161 .property
= "vectors",
1162 .value
= stringify(0),
1164 .driver
= "ide-drive",
1168 .driver
= "scsi-disk",
1173 .property
= "rombar",
1174 .value
= stringify(0),
1176 { /* end of list */ }
1180 static QEMUMachine isapc_machine
= {
1182 .desc
= "ISA-only PC",
1183 .init
= pc_init_isa
,
1187 static void pc_machine_init(void)
1189 qemu_register_machine(&pc_machine
);
1190 qemu_register_machine(&pc_machine_v0_12
);
1191 qemu_register_machine(&pc_machine_v0_11
);
1192 qemu_register_machine(&pc_machine_v0_10
);
1193 qemu_register_machine(&isapc_machine
);
1196 machine_init(pc_machine_init
);