Annotation of qemu/hw/pc.c, revision 1.1.1.18

1.1       root        1: /*
                      2:  * QEMU PC System Emulator
1.1.1.6   root        3:  *
1.1       root        4:  * Copyright (c) 2003-2004 Fabrice Bellard
1.1.1.6   root        5:  *
1.1       root        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:
                     12:  *
                     13:  * The above copyright notice and this permission notice shall be included in
                     14:  * all copies or substantial portions of the Software.
                     15:  *
                     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
                     22:  * THE SOFTWARE.
                     23:  */
1.1.1.6   root       24: #include "hw.h"
                     25: #include "pc.h"
1.1.1.15  root       26: #include "apic.h"
1.1.1.6   root       27: #include "fdc.h"
1.1.1.15  root       28: #include "ide.h"
1.1.1.6   root       29: #include "pci.h"
1.1.1.12  root       30: #include "vmware_vga.h"
1.1.1.11  root       31: #include "monitor.h"
1.1.1.7   root       32: #include "fw_cfg.h"
                     33: #include "hpet_emul.h"
1.1.1.11  root       34: #include "smbios.h"
1.1.1.12  root       35: #include "loader.h"
                     36: #include "elf.h"
1.1.1.15  root       37: #include "multiboot.h"
                     38: #include "mc146818rtc.h"
                     39: #include "msix.h"
                     40: #include "sysbus.h"
                     41: #include "sysemu.h"
1.1.1.16  root       42: #include "blockdev.h"
                     43: #include "ui/qemu-spice.h"
1.1       root       44: 
                     45: /* output Bochs bios info messages */
                     46: //#define DEBUG_BIOS
                     47: 
1.1.1.15  root       48: /* debug PC/ISA interrupts */
                     49: //#define DEBUG_IRQ
                     50: 
                     51: #ifdef DEBUG_IRQ
                     52: #define DPRINTF(fmt, ...)                                       \
                     53:     do { printf("CPUIRQ: " fmt , ## __VA_ARGS__); } while (0)
                     54: #else
                     55: #define DPRINTF(fmt, ...)
                     56: #endif
1.1.1.11  root       57: 
1.1       root       58: #define BIOS_FILENAME "bios.bin"
                     59: 
1.1.1.7   root       60: #define PC_MAX_BIOS_SIZE (4 * 1024 * 1024)
                     61: 
1.1.1.6   root       62: /* Leave a chunk of memory at the top of RAM for the BIOS ACPI tables.  */
                     63: #define ACPI_DATA_SIZE       0x10000
1.1.1.7   root       64: #define BIOS_CFG_IOPORT 0x510
                     65: #define FW_CFG_ACPI_TABLES (FW_CFG_ARCH_LOCAL + 0)
1.1.1.11  root       66: #define FW_CFG_SMBIOS_ENTRIES (FW_CFG_ARCH_LOCAL + 1)
1.1.1.12  root       67: #define FW_CFG_IRQ0_OVERRIDE (FW_CFG_ARCH_LOCAL + 2)
1.1.1.15  root       68: #define FW_CFG_E820_TABLE (FW_CFG_ARCH_LOCAL + 3)
                     69: #define FW_CFG_HPET (FW_CFG_ARCH_LOCAL + 4)
                     70: 
                     71: #define MSI_ADDR_BASE 0xfee00000
1.1.1.6   root       72: 
1.1.1.15  root       73: #define E820_NR_ENTRIES                16
1.1       root       74: 
1.1.1.15  root       75: struct e820_entry {
                     76:     uint64_t address;
                     77:     uint64_t length;
                     78:     uint32_t type;
1.1.1.16  root       79: } __attribute((__packed__, __aligned__(4)));
1.1.1.15  root       80: 
                     81: struct e820_table {
                     82:     uint32_t count;
                     83:     struct e820_entry entry[E820_NR_ENTRIES];
1.1.1.16  root       84: } __attribute((__packed__, __aligned__(4)));
1.1.1.9   root       85: 
1.1.1.15  root       86: static struct e820_table e820_table;
1.1.1.18! root       87: struct hpet_fw_config hpet_cfg = {.count = UINT8_MAX};
1.1.1.15  root       88: 
                     89: void isa_irq_handler(void *opaque, int n, int level)
1.1.1.9   root       90: {
1.1.1.12  root       91:     IsaIrqState *isa = (IsaIrqState *)opaque;
1.1.1.9   root       92: 
1.1.1.15  root       93:     DPRINTF("isa_irqs: %s irq %d\n", level? "raise" : "lower", n);
1.1.1.12  root       94:     if (n < 16) {
                     95:         qemu_set_irq(isa->i8259[n], level);
                     96:     }
                     97:     if (isa->ioapic)
                     98:         qemu_set_irq(isa->ioapic[n], level);
                     99: };
1.1.1.9   root      100: 
1.1       root      101: static void ioport80_write(void *opaque, uint32_t addr, uint32_t data)
                    102: {
                    103: }
                    104: 
                    105: /* MSDOS compatibility mode FPU exception support */
1.1.1.6   root      106: static qemu_irq ferr_irq;
1.1.1.15  root      107: 
                    108: void pc_register_ferr_irq(qemu_irq irq)
                    109: {
                    110:     ferr_irq = irq;
                    111: }
                    112: 
1.1       root      113: /* XXX: add IGNNE support */
                    114: void cpu_set_ferr(CPUX86State *s)
                    115: {
1.1.1.6   root      116:     qemu_irq_raise(ferr_irq);
1.1       root      117: }
                    118: 
                    119: static void ioportF0_write(void *opaque, uint32_t addr, uint32_t data)
                    120: {
1.1.1.6   root      121:     qemu_irq_lower(ferr_irq);
1.1       root      122: }
                    123: 
                    124: /* TSC handling */
                    125: uint64_t cpu_get_tsc(CPUX86State *env)
                    126: {
1.1.1.12  root      127:     return cpu_get_ticks();
1.1       root      128: }
                    129: 
1.1.1.5   root      130: /* SMM support */
1.1.1.15  root      131: 
                    132: static cpu_set_smm_t smm_set;
                    133: static void *smm_arg;
                    134: 
                    135: void cpu_smm_register(cpu_set_smm_t callback, void *arg)
                    136: {
                    137:     assert(smm_set == NULL);
                    138:     assert(smm_arg == NULL);
                    139:     smm_set = callback;
                    140:     smm_arg = arg;
                    141: }
                    142: 
1.1.1.5   root      143: void cpu_smm_update(CPUState *env)
                    144: {
1.1.1.15  root      145:     if (smm_set && smm_arg && env == first_cpu)
                    146:         smm_set(!!(env->hflags & HF_SMM_MASK), smm_arg);
1.1.1.5   root      147: }
                    148: 
                    149: 
1.1       root      150: /* IRQ handling */
                    151: int cpu_get_pic_interrupt(CPUState *env)
                    152: {
                    153:     int intno;
                    154: 
1.1.1.15  root      155:     intno = apic_get_interrupt(env->apic_state);
1.1       root      156:     if (intno >= 0) {
                    157:         /* set irq request if a PIC irq is still pending */
                    158:         /* XXX: improve that */
1.1.1.6   root      159:         pic_update_irq(isa_pic);
1.1       root      160:         return intno;
                    161:     }
                    162:     /* read the irq from the PIC */
1.1.1.15  root      163:     if (!apic_accept_pic_intr(env->apic_state)) {
1.1.1.6   root      164:         return -1;
1.1.1.15  root      165:     }
1.1.1.6   root      166: 
1.1       root      167:     intno = pic_read_irq(isa_pic);
                    168:     return intno;
                    169: }
                    170: 
1.1.1.6   root      171: static void pic_irq_request(void *opaque, int irq, int level)
1.1       root      172: {
1.1.1.7   root      173:     CPUState *env = first_cpu;
                    174: 
1.1.1.15  root      175:     DPRINTF("pic_irqs: %s irq %d\n", level? "raise" : "lower", irq);
1.1.1.7   root      176:     if (env->apic_state) {
                    177:         while (env) {
1.1.1.15  root      178:             if (apic_accept_pic_intr(env->apic_state)) {
                    179:                 apic_deliver_pic_intr(env->apic_state, level);
                    180:             }
1.1.1.7   root      181:             env = env->next_cpu;
                    182:         }
                    183:     } else {
                    184:         if (level)
                    185:             cpu_interrupt(env, CPU_INTERRUPT_HARD);
                    186:         else
                    187:             cpu_reset_interrupt(env, CPU_INTERRUPT_HARD);
                    188:     }
1.1       root      189: }
                    190: 
                    191: /* PC cmos mappings */
                    192: 
                    193: #define REG_EQUIPMENT_BYTE          0x14
                    194: 
1.1.1.18! root      195: static int cmos_get_fd_drive_type(FDriveType fd0)
1.1       root      196: {
                    197:     int val;
                    198: 
                    199:     switch (fd0) {
1.1.1.18! root      200:     case FDRIVE_DRV_144:
1.1       root      201:         /* 1.44 Mb 3"5 drive */
                    202:         val = 4;
                    203:         break;
1.1.1.18! root      204:     case FDRIVE_DRV_288:
1.1       root      205:         /* 2.88 Mb 3"5 drive */
                    206:         val = 5;
                    207:         break;
1.1.1.18! root      208:     case FDRIVE_DRV_120:
1.1       root      209:         /* 1.2 Mb 5"5 drive */
                    210:         val = 2;
                    211:         break;
1.1.1.18! root      212:     case FDRIVE_DRV_NONE:
1.1       root      213:     default:
                    214:         val = 0;
                    215:         break;
                    216:     }
                    217:     return val;
                    218: }
                    219: 
1.1.1.15  root      220: static void cmos_init_hd(int type_ofs, int info_ofs, BlockDriverState *hd,
                    221:                          ISADevice *s)
1.1       root      222: {
                    223:     int cylinders, heads, sectors;
                    224:     bdrv_get_geometry_hint(hd, &cylinders, &heads, &sectors);
                    225:     rtc_set_memory(s, type_ofs, 47);
                    226:     rtc_set_memory(s, info_ofs, cylinders);
                    227:     rtc_set_memory(s, info_ofs + 1, cylinders >> 8);
                    228:     rtc_set_memory(s, info_ofs + 2, heads);
                    229:     rtc_set_memory(s, info_ofs + 3, 0xff);
                    230:     rtc_set_memory(s, info_ofs + 4, 0xff);
                    231:     rtc_set_memory(s, info_ofs + 5, 0xc0 | ((heads > 8) << 3));
                    232:     rtc_set_memory(s, info_ofs + 6, cylinders);
                    233:     rtc_set_memory(s, info_ofs + 7, cylinders >> 8);
                    234:     rtc_set_memory(s, info_ofs + 8, sectors);
                    235: }
                    236: 
1.1.1.6   root      237: /* convert boot_device letter to something recognizable by the bios */
                    238: static int boot_device2nibble(char boot_device)
                    239: {
                    240:     switch(boot_device) {
                    241:     case 'a':
                    242:     case 'b':
                    243:         return 0x01; /* floppy boot */
                    244:     case 'c':
                    245:         return 0x02; /* hard drive boot */
                    246:     case 'd':
                    247:         return 0x03; /* CD-ROM boot */
                    248:     case 'n':
                    249:         return 0x04; /* Network boot */
                    250:     }
                    251:     return 0;
                    252: }
                    253: 
1.1.1.15  root      254: static int set_boot_dev(ISADevice *s, const char *boot_device, int fd_bootchk)
1.1.1.7   root      255: {
                    256: #define PC_MAX_BOOT_DEVICES 3
                    257:     int nbds, bds[3] = { 0, };
                    258:     int i;
                    259: 
                    260:     nbds = strlen(boot_device);
                    261:     if (nbds > PC_MAX_BOOT_DEVICES) {
1.1.1.15  root      262:         error_report("Too many boot devices for PC");
1.1.1.7   root      263:         return(1);
                    264:     }
                    265:     for (i = 0; i < nbds; i++) {
                    266:         bds[i] = boot_device2nibble(boot_device[i]);
                    267:         if (bds[i] == 0) {
1.1.1.15  root      268:             error_report("Invalid boot device for PC: '%c'",
                    269:                          boot_device[i]);
1.1.1.7   root      270:             return(1);
                    271:         }
                    272:     }
                    273:     rtc_set_memory(s, 0x3d, (bds[1] << 4) | bds[0]);
1.1.1.15  root      274:     rtc_set_memory(s, 0x38, (bds[2] << 4) | (fd_bootchk ? 0x0 : 0x1));
1.1.1.7   root      275:     return(0);
                    276: }
                    277: 
1.1.1.15  root      278: static int pc_boot_set(void *opaque, const char *boot_device)
1.1       root      279: {
1.1.1.15  root      280:     return set_boot_dev(opaque, boot_device, 0);
                    281: }
                    282: 
                    283: typedef struct pc_cmos_init_late_arg {
                    284:     ISADevice *rtc_state;
                    285:     BusState *idebus0, *idebus1;
                    286: } pc_cmos_init_late_arg;
                    287: 
                    288: static void pc_cmos_init_late(void *opaque)
                    289: {
                    290:     pc_cmos_init_late_arg *arg = opaque;
                    291:     ISADevice *s = arg->rtc_state;
1.1       root      292:     int val;
1.1.1.15  root      293:     BlockDriverState *hd_table[4];
1.1       root      294:     int i;
                    295: 
1.1.1.15  root      296:     ide_get_bs(hd_table, arg->idebus0);
                    297:     ide_get_bs(hd_table + 2, arg->idebus1);
                    298: 
                    299:     rtc_set_memory(s, 0x12, (hd_table[0] ? 0xf0 : 0) | (hd_table[1] ? 0x0f : 0));
                    300:     if (hd_table[0])
                    301:         cmos_init_hd(0x19, 0x1b, hd_table[0], s);
                    302:     if (hd_table[1])
                    303:         cmos_init_hd(0x1a, 0x24, hd_table[1], s);
                    304: 
                    305:     val = 0;
                    306:     for (i = 0; i < 4; i++) {
                    307:         if (hd_table[i]) {
                    308:             int cylinders, heads, sectors, translation;
                    309:             /* NOTE: bdrv_get_geometry_hint() returns the physical
                    310:                 geometry.  It is always such that: 1 <= sects <= 63, 1
                    311:                 <= heads <= 16, 1 <= cylinders <= 16383. The BIOS
                    312:                 geometry can be different if a translation is done. */
                    313:             translation = bdrv_get_translation_hint(hd_table[i]);
                    314:             if (translation == BIOS_ATA_TRANSLATION_AUTO) {
                    315:                 bdrv_get_geometry_hint(hd_table[i], &cylinders, &heads, &sectors);
                    316:                 if (cylinders <= 1024 && heads <= 16 && sectors <= 63) {
                    317:                     /* No translation. */
                    318:                     translation = 0;
                    319:                 } else {
                    320:                     /* LBA translation. */
                    321:                     translation = 1;
                    322:                 }
                    323:             } else {
                    324:                 translation--;
                    325:             }
                    326:             val |= translation << (i * 2);
                    327:         }
                    328:     }
                    329:     rtc_set_memory(s, 0x39, val);
                    330: 
                    331:     qemu_unregister_reset(pc_cmos_init_late, opaque);
                    332: }
                    333: 
                    334: void pc_cmos_init(ram_addr_t ram_size, ram_addr_t above_4g_mem_size,
                    335:                   const char *boot_device,
                    336:                   BusState *idebus0, BusState *idebus1,
1.1.1.18! root      337:                   ISADevice *s)
1.1.1.15  root      338: {
1.1.1.18! root      339:     int val, nb, nb_heads, max_track, last_sect, i;
        !           340:     FDriveType fd_type[2];
        !           341:     DriveInfo *fd[2];
1.1.1.15  root      342:     static pc_cmos_init_late_arg arg;
                    343: 
1.1       root      344:     /* various important CMOS locations needed by PC/Bochs bios */
                    345: 
                    346:     /* memory size */
                    347:     val = 640; /* base memory in K */
                    348:     rtc_set_memory(s, 0x15, val);
                    349:     rtc_set_memory(s, 0x16, val >> 8);
                    350: 
                    351:     val = (ram_size / 1024) - 1024;
                    352:     if (val > 65535)
                    353:         val = 65535;
                    354:     rtc_set_memory(s, 0x17, val);
                    355:     rtc_set_memory(s, 0x18, val >> 8);
                    356:     rtc_set_memory(s, 0x30, val);
                    357:     rtc_set_memory(s, 0x31, val >> 8);
                    358: 
1.1.1.7   root      359:     if (above_4g_mem_size) {
                    360:         rtc_set_memory(s, 0x5b, (unsigned int)above_4g_mem_size >> 16);
                    361:         rtc_set_memory(s, 0x5c, (unsigned int)above_4g_mem_size >> 24);
                    362:         rtc_set_memory(s, 0x5d, (uint64_t)above_4g_mem_size >> 32);
                    363:     }
                    364: 
1.1       root      365:     if (ram_size > (16 * 1024 * 1024))
                    366:         val = (ram_size / 65536) - ((16 * 1024 * 1024) / 65536);
                    367:     else
                    368:         val = 0;
                    369:     if (val > 65535)
                    370:         val = 65535;
                    371:     rtc_set_memory(s, 0x34, val);
                    372:     rtc_set_memory(s, 0x35, val >> 8);
1.1.1.6   root      373: 
1.1.1.7   root      374:     /* set the number of CPU */
                    375:     rtc_set_memory(s, 0x5f, smp_cpus - 1);
                    376: 
1.1.1.6   root      377:     /* set boot devices, and disable floppy signature check if requested */
1.1.1.15  root      378:     if (set_boot_dev(s, boot_device, fd_bootchk)) {
1.1.1.6   root      379:         exit(1);
1.1       root      380:     }
                    381: 
                    382:     /* floppy type */
1.1.1.18! root      383:     for (i = 0; i < 2; i++) {
        !           384:         fd[i] = drive_get(IF_FLOPPY, 0, i);
        !           385:         if (fd[i] && bdrv_is_inserted(fd[i]->bdrv)) {
        !           386:             bdrv_get_floppy_geometry_hint(fd[i]->bdrv, &nb_heads, &max_track,
        !           387:                                           &last_sect, FDRIVE_DRV_NONE,
        !           388:                                           &fd_type[i]);
        !           389:         } else {
        !           390:             fd_type[i] = FDRIVE_DRV_NONE;
        !           391:         }
        !           392:     }
        !           393:     val = (cmos_get_fd_drive_type(fd_type[0]) << 4) |
        !           394:         cmos_get_fd_drive_type(fd_type[1]);
1.1       root      395:     rtc_set_memory(s, 0x10, val);
1.1.1.6   root      396: 
1.1       root      397:     val = 0;
                    398:     nb = 0;
1.1.1.18! root      399:     if (fd_type[0] < FDRIVE_DRV_NONE) {
1.1       root      400:         nb++;
1.1.1.18! root      401:     }
        !           402:     if (fd_type[1] < FDRIVE_DRV_NONE) {
1.1       root      403:         nb++;
1.1.1.18! root      404:     }
1.1       root      405:     switch (nb) {
                    406:     case 0:
                    407:         break;
                    408:     case 1:
                    409:         val |= 0x01; /* 1 drive, ready for boot */
                    410:         break;
                    411:     case 2:
                    412:         val |= 0x41; /* 2 drives, ready for boot */
                    413:         break;
                    414:     }
                    415:     val |= 0x02; /* FPU is there */
                    416:     val |= 0x04; /* PS/2 mouse installed */
                    417:     rtc_set_memory(s, REG_EQUIPMENT_BYTE, val);
                    418: 
                    419:     /* hard drives */
1.1.1.15  root      420:     arg.rtc_state = s;
                    421:     arg.idebus0 = idebus0;
                    422:     arg.idebus1 = idebus1;
                    423:     qemu_register_reset(pc_cmos_init_late, &arg);
1.1.1.2   root      424: }
                    425: 
1.1.1.16  root      426: /* port 92 stuff: could be split off */
                    427: typedef struct Port92State {
                    428:     ISADevice dev;
                    429:     uint8_t outport;
                    430:     qemu_irq *a20_out;
                    431: } Port92State;
                    432: 
                    433: static void port92_write(void *opaque, uint32_t addr, uint32_t val)
                    434: {
                    435:     Port92State *s = opaque;
                    436: 
                    437:     DPRINTF("port92: write 0x%02x\n", val);
                    438:     s->outport = val;
                    439:     qemu_set_irq(*s->a20_out, (val >> 1) & 1);
                    440:     if (val & 1) {
                    441:         qemu_system_reset_request();
                    442:     }
                    443: }
                    444: 
                    445: static uint32_t port92_read(void *opaque, uint32_t addr)
                    446: {
                    447:     Port92State *s = opaque;
                    448:     uint32_t ret;
                    449: 
                    450:     ret = s->outport;
                    451:     DPRINTF("port92: read 0x%02x\n", ret);
                    452:     return ret;
                    453: }
                    454: 
                    455: static void port92_init(ISADevice *dev, qemu_irq *a20_out)
                    456: {
                    457:     Port92State *s = DO_UPCAST(Port92State, dev, dev);
                    458: 
                    459:     s->a20_out = a20_out;
                    460: }
                    461: 
                    462: static const VMStateDescription vmstate_port92_isa = {
                    463:     .name = "port92",
                    464:     .version_id = 1,
                    465:     .minimum_version_id = 1,
                    466:     .minimum_version_id_old = 1,
                    467:     .fields      = (VMStateField []) {
                    468:         VMSTATE_UINT8(outport, Port92State),
                    469:         VMSTATE_END_OF_LIST()
                    470:     }
                    471: };
                    472: 
                    473: static void port92_reset(DeviceState *d)
                    474: {
                    475:     Port92State *s = container_of(d, Port92State, dev.qdev);
                    476: 
                    477:     s->outport &= ~1;
                    478: }
                    479: 
                    480: static int port92_initfn(ISADevice *dev)
                    481: {
                    482:     Port92State *s = DO_UPCAST(Port92State, dev, dev);
                    483: 
                    484:     register_ioport_read(0x92, 1, 1, port92_read, s);
                    485:     register_ioport_write(0x92, 1, 1, port92_write, s);
                    486:     isa_init_ioport(dev, 0x92);
                    487:     s->outport = 0;
                    488:     return 0;
                    489: }
                    490: 
                    491: static ISADeviceInfo port92_info = {
                    492:     .qdev.name     = "port92",
                    493:     .qdev.size     = sizeof(Port92State),
                    494:     .qdev.vmsd     = &vmstate_port92_isa,
                    495:     .qdev.no_user  = 1,
                    496:     .qdev.reset    = port92_reset,
                    497:     .init          = port92_initfn,
                    498: };
                    499: 
                    500: static void port92_register(void)
                    501: {
                    502:     isa_qdev_register(&port92_info);
                    503: }
                    504: device_init(port92_register)
                    505: 
1.1.1.15  root      506: static void handle_a20_line_change(void *opaque, int irq, int level)
1.1.1.2   root      507: {
1.1.1.15  root      508:     CPUState *cpu = opaque;
1.1.1.2   root      509: 
1.1.1.15  root      510:     /* XXX: send to all CPUs ? */
1.1.1.16  root      511:     /* XXX: add logic to handle multiple A20 line sources */
1.1.1.15  root      512:     cpu_x86_set_a20(cpu, level);
1.1       root      513: }
                    514: 
                    515: /***********************************************************/
                    516: /* Bochs BIOS debug ports */
                    517: 
1.1.1.6   root      518: static void bochs_bios_write(void *opaque, uint32_t addr, uint32_t val)
1.1       root      519: {
                    520:     static const char shutdown_str[8] = "Shutdown";
                    521:     static int shutdown_index = 0;
1.1.1.6   root      522: 
1.1       root      523:     switch(addr) {
                    524:         /* Bochs BIOS messages */
                    525:     case 0x400:
                    526:     case 0x401:
1.1.1.16  root      527:         /* used to be panic, now unused */
                    528:         break;
1.1       root      529:     case 0x402:
                    530:     case 0x403:
                    531: #ifdef DEBUG_BIOS
                    532:         fprintf(stderr, "%c", val);
                    533: #endif
                    534:         break;
                    535:     case 0x8900:
                    536:         /* same as Bochs power off */
                    537:         if (val == shutdown_str[shutdown_index]) {
                    538:             shutdown_index++;
                    539:             if (shutdown_index == 8) {
                    540:                 shutdown_index = 0;
                    541:                 qemu_system_shutdown_request();
                    542:             }
                    543:         } else {
                    544:             shutdown_index = 0;
                    545:         }
                    546:         break;
                    547: 
                    548:         /* LGPL'ed VGA BIOS messages */
                    549:     case 0x501:
                    550:     case 0x502:
                    551:         fprintf(stderr, "VGA BIOS panic, line %d\n", val);
                    552:         exit(1);
                    553:     case 0x500:
                    554:     case 0x503:
                    555: #ifdef DEBUG_BIOS
                    556:         fprintf(stderr, "%c", val);
                    557: #endif
                    558:         break;
                    559:     }
                    560: }
                    561: 
1.1.1.15  root      562: int e820_add_entry(uint64_t address, uint64_t length, uint32_t type)
                    563: {
1.1.1.16  root      564:     int index = le32_to_cpu(e820_table.count);
1.1.1.15  root      565:     struct e820_entry *entry;
                    566: 
                    567:     if (index >= E820_NR_ENTRIES)
                    568:         return -EBUSY;
1.1.1.16  root      569:     entry = &e820_table.entry[index++];
1.1.1.15  root      570: 
1.1.1.16  root      571:     entry->address = cpu_to_le64(address);
                    572:     entry->length = cpu_to_le64(length);
                    573:     entry->type = cpu_to_le32(type);
1.1.1.15  root      574: 
1.1.1.16  root      575:     e820_table.count = cpu_to_le32(index);
                    576:     return index;
1.1.1.15  root      577: }
                    578: 
1.1.1.11  root      579: static void *bochs_bios_init(void)
1.1       root      580: {
1.1.1.7   root      581:     void *fw_cfg;
1.1.1.11  root      582:     uint8_t *smbios_table;
                    583:     size_t smbios_len;
                    584:     uint64_t *numa_fw_cfg;
                    585:     int i, j;
1.1.1.7   root      586: 
1.1       root      587:     register_ioport_write(0x400, 1, 2, bochs_bios_write, NULL);
                    588:     register_ioport_write(0x401, 1, 2, bochs_bios_write, NULL);
                    589:     register_ioport_write(0x402, 1, 1, bochs_bios_write, NULL);
                    590:     register_ioport_write(0x403, 1, 1, bochs_bios_write, NULL);
                    591:     register_ioport_write(0x8900, 1, 1, bochs_bios_write, NULL);
                    592: 
                    593:     register_ioport_write(0x501, 1, 2, bochs_bios_write, NULL);
                    594:     register_ioport_write(0x502, 1, 2, bochs_bios_write, NULL);
                    595:     register_ioport_write(0x500, 1, 1, bochs_bios_write, NULL);
                    596:     register_ioport_write(0x503, 1, 1, bochs_bios_write, NULL);
1.1.1.7   root      597: 
                    598:     fw_cfg = fw_cfg_init(BIOS_CFG_IOPORT, BIOS_CFG_IOPORT + 1, 0, 0);
1.1.1.11  root      599: 
1.1.1.7   root      600:     fw_cfg_add_i32(fw_cfg, FW_CFG_ID, 1);
                    601:     fw_cfg_add_i64(fw_cfg, FW_CFG_RAM_SIZE, (uint64_t)ram_size);
1.1.1.11  root      602:     fw_cfg_add_bytes(fw_cfg, FW_CFG_ACPI_TABLES, (uint8_t *)acpi_tables,
                    603:                      acpi_tables_len);
1.1.1.12  root      604:     fw_cfg_add_bytes(fw_cfg, FW_CFG_IRQ0_OVERRIDE, &irq0override, 1);
1.1.1.11  root      605: 
                    606:     smbios_table = smbios_get_table(&smbios_len);
                    607:     if (smbios_table)
                    608:         fw_cfg_add_bytes(fw_cfg, FW_CFG_SMBIOS_ENTRIES,
                    609:                          smbios_table, smbios_len);
1.1.1.15  root      610:     fw_cfg_add_bytes(fw_cfg, FW_CFG_E820_TABLE, (uint8_t *)&e820_table,
                    611:                      sizeof(struct e820_table));
1.1.1.11  root      612: 
1.1.1.15  root      613:     fw_cfg_add_bytes(fw_cfg, FW_CFG_HPET, (uint8_t *)&hpet_cfg,
                    614:                      sizeof(struct hpet_fw_config));
1.1.1.11  root      615:     /* allocate memory for the NUMA channel: one (64bit) word for the number
                    616:      * of nodes, one word for each VCPU->node and one word for each node to
                    617:      * hold the amount of memory.
                    618:      */
                    619:     numa_fw_cfg = qemu_mallocz((1 + smp_cpus + nb_numa_nodes) * 8);
                    620:     numa_fw_cfg[0] = cpu_to_le64(nb_numa_nodes);
                    621:     for (i = 0; i < smp_cpus; i++) {
                    622:         for (j = 0; j < nb_numa_nodes; j++) {
                    623:             if (node_cpumask[j] & (1 << i)) {
                    624:                 numa_fw_cfg[i + 1] = cpu_to_le64(j);
                    625:                 break;
                    626:             }
                    627:         }
                    628:     }
                    629:     for (i = 0; i < nb_numa_nodes; i++) {
                    630:         numa_fw_cfg[smp_cpus + 1 + i] = cpu_to_le64(node_mem[i]);
                    631:     }
                    632:     fw_cfg_add_bytes(fw_cfg, FW_CFG_NUMA, (uint8_t *)numa_fw_cfg,
                    633:                      (1 + smp_cpus + nb_numa_nodes) * 8);
                    634: 
                    635:     return fw_cfg;
1.1       root      636: }
                    637: 
1.1.1.6   root      638: static long get_file_size(FILE *f)
                    639: {
                    640:     long where, size;
                    641: 
                    642:     /* XXX: on Unix systems, using fstat() probably makes more sense */
                    643: 
                    644:     where = ftell(f);
                    645:     fseek(f, 0, SEEK_END);
                    646:     size = ftell(f);
                    647:     fseek(f, where, SEEK_SET);
                    648: 
                    649:     return size;
                    650: }
                    651: 
1.1.1.11  root      652: static void load_linux(void *fw_cfg,
1.1.1.7   root      653:                        const char *kernel_filename,
1.1.1.6   root      654:                       const char *initrd_filename,
1.1.1.10  root      655:                       const char *kernel_cmdline,
1.1.1.12  root      656:                        target_phys_addr_t max_ram_size)
1.1.1.6   root      657: {
                    658:     uint16_t protocol;
1.1.1.11  root      659:     int setup_size, kernel_size, initrd_size = 0, cmdline_size;
1.1.1.6   root      660:     uint32_t initrd_max;
1.1.1.12  root      661:     uint8_t header[8192], *setup, *kernel, *initrd_data;
1.1.1.11  root      662:     target_phys_addr_t real_addr, prot_addr, cmdline_addr, initrd_addr = 0;
1.1.1.12  root      663:     FILE *f;
1.1.1.11  root      664:     char *vmode;
1.1.1.6   root      665: 
                    666:     /* Align to 16 bytes as a paranoia measure */
                    667:     cmdline_size = (strlen(kernel_cmdline)+16) & ~15;
                    668: 
                    669:     /* load the kernel header */
                    670:     f = fopen(kernel_filename, "rb");
                    671:     if (!f || !(kernel_size = get_file_size(f)) ||
1.1.1.11  root      672:        fread(header, 1, MIN(ARRAY_SIZE(header), kernel_size), f) !=
                    673:        MIN(ARRAY_SIZE(header), kernel_size)) {
1.1.1.12  root      674:        fprintf(stderr, "qemu: could not load kernel '%s': %s\n",
                    675:                kernel_filename, strerror(errno));
1.1.1.6   root      676:        exit(1);
                    677:     }
                    678: 
                    679:     /* kernel protocol version */
                    680: #if 0
                    681:     fprintf(stderr, "header magic: %#x\n", ldl_p(header+0x202));
                    682: #endif
                    683:     if (ldl_p(header+0x202) == 0x53726448)
                    684:        protocol = lduw_p(header+0x206);
1.1.1.11  root      685:     else {
                    686:        /* This looks like a multiboot kernel. If it is, let's stop
                    687:           treating it like a Linux kernel. */
1.1.1.15  root      688:         if (load_multiboot(fw_cfg, f, kernel_filename, initrd_filename,
                    689:                            kernel_cmdline, kernel_size, header))
1.1.1.12  root      690:             return;
1.1.1.6   root      691:        protocol = 0;
1.1.1.11  root      692:     }
1.1.1.6   root      693: 
                    694:     if (protocol < 0x200 || !(header[0x211] & 0x01)) {
                    695:        /* Low kernel */
1.1.1.7   root      696:        real_addr    = 0x90000;
                    697:        cmdline_addr = 0x9a000 - cmdline_size;
                    698:        prot_addr    = 0x10000;
1.1.1.6   root      699:     } else if (protocol < 0x202) {
                    700:        /* High but ancient kernel */
1.1.1.7   root      701:        real_addr    = 0x90000;
                    702:        cmdline_addr = 0x9a000 - cmdline_size;
                    703:        prot_addr    = 0x100000;
1.1.1.6   root      704:     } else {
                    705:        /* High and recent kernel */
1.1.1.7   root      706:        real_addr    = 0x10000;
                    707:        cmdline_addr = 0x20000;
                    708:        prot_addr    = 0x100000;
1.1.1.6   root      709:     }
                    710: 
                    711: #if 0
                    712:     fprintf(stderr,
1.1.1.7   root      713:            "qemu: real_addr     = 0x" TARGET_FMT_plx "\n"
                    714:            "qemu: cmdline_addr  = 0x" TARGET_FMT_plx "\n"
                    715:            "qemu: prot_addr     = 0x" TARGET_FMT_plx "\n",
                    716:            real_addr,
                    717:            cmdline_addr,
                    718:            prot_addr);
1.1.1.6   root      719: #endif
                    720: 
                    721:     /* highest address for loading the initrd */
                    722:     if (protocol >= 0x203)
                    723:        initrd_max = ldl_p(header+0x22c);
                    724:     else
                    725:        initrd_max = 0x37ffffff;
                    726: 
1.1.1.10  root      727:     if (initrd_max >= max_ram_size-ACPI_DATA_SIZE)
                    728:        initrd_max = max_ram_size-ACPI_DATA_SIZE-1;
1.1.1.6   root      729: 
1.1.1.12  root      730:     fw_cfg_add_i32(fw_cfg, FW_CFG_CMDLINE_ADDR, cmdline_addr);
                    731:     fw_cfg_add_i32(fw_cfg, FW_CFG_CMDLINE_SIZE, strlen(kernel_cmdline)+1);
                    732:     fw_cfg_add_bytes(fw_cfg, FW_CFG_CMDLINE_DATA,
                    733:                      (uint8_t*)strdup(kernel_cmdline),
                    734:                      strlen(kernel_cmdline)+1);
1.1.1.6   root      735: 
                    736:     if (protocol >= 0x202) {
1.1.1.7   root      737:        stl_p(header+0x228, cmdline_addr);
1.1.1.6   root      738:     } else {
                    739:        stw_p(header+0x20, 0xA33F);
                    740:        stw_p(header+0x22, cmdline_addr-real_addr);
                    741:     }
                    742: 
1.1.1.11  root      743:     /* handle vga= parameter */
                    744:     vmode = strstr(kernel_cmdline, "vga=");
                    745:     if (vmode) {
                    746:         unsigned int video_mode;
                    747:         /* skip "vga=" */
                    748:         vmode += 4;
                    749:         if (!strncmp(vmode, "normal", 6)) {
                    750:             video_mode = 0xffff;
                    751:         } else if (!strncmp(vmode, "ext", 3)) {
                    752:             video_mode = 0xfffe;
                    753:         } else if (!strncmp(vmode, "ask", 3)) {
                    754:             video_mode = 0xfffd;
                    755:         } else {
                    756:             video_mode = strtol(vmode, NULL, 0);
                    757:         }
                    758:         stw_p(header+0x1fa, video_mode);
                    759:     }
                    760: 
1.1.1.6   root      761:     /* loader type */
                    762:     /* High nybble = B reserved for Qemu; low nybble is revision number.
                    763:        If this code is substantially changed, you may want to consider
                    764:        incrementing the revision. */
                    765:     if (protocol >= 0x200)
                    766:        header[0x210] = 0xB0;
                    767: 
                    768:     /* heap */
                    769:     if (protocol >= 0x201) {
                    770:        header[0x211] |= 0x80;  /* CAN_USE_HEAP */
                    771:        stw_p(header+0x224, cmdline_addr-real_addr-0x200);
                    772:     }
                    773: 
                    774:     /* load initrd */
                    775:     if (initrd_filename) {
                    776:        if (protocol < 0x200) {
                    777:            fprintf(stderr, "qemu: linux kernel too old to load a ram disk\n");
                    778:            exit(1);
                    779:        }
                    780: 
1.1.1.12  root      781:        initrd_size = get_image_size(initrd_filename);
1.1.1.15  root      782:         if (initrd_size < 0) {
                    783:             fprintf(stderr, "qemu: error reading initrd %s\n",
                    784:                     initrd_filename);
                    785:             exit(1);
                    786:         }
                    787: 
1.1.1.12  root      788:         initrd_addr = (initrd_max-initrd_size) & ~4095;
1.1.1.6   root      789: 
1.1.1.12  root      790:         initrd_data = qemu_malloc(initrd_size);
                    791:         load_image(initrd_filename, initrd_data);
1.1.1.6   root      792: 
1.1.1.12  root      793:         fw_cfg_add_i32(fw_cfg, FW_CFG_INITRD_ADDR, initrd_addr);
                    794:         fw_cfg_add_i32(fw_cfg, FW_CFG_INITRD_SIZE, initrd_size);
                    795:         fw_cfg_add_bytes(fw_cfg, FW_CFG_INITRD_DATA, initrd_data, initrd_size);
1.1.1.6   root      796: 
1.1.1.7   root      797:        stl_p(header+0x218, initrd_addr);
1.1.1.6   root      798:        stl_p(header+0x21c, initrd_size);
                    799:     }
                    800: 
1.1.1.12  root      801:     /* load kernel and setup */
1.1.1.6   root      802:     setup_size = header[0x1f1];
                    803:     if (setup_size == 0)
                    804:        setup_size = 4;
                    805:     setup_size = (setup_size+1)*512;
1.1.1.12  root      806:     kernel_size -= setup_size;
1.1.1.11  root      807: 
1.1.1.12  root      808:     setup  = qemu_malloc(setup_size);
                    809:     kernel = qemu_malloc(kernel_size);
                    810:     fseek(f, 0, SEEK_SET);
1.1.1.15  root      811:     if (fread(setup, 1, setup_size, f) != setup_size) {
                    812:         fprintf(stderr, "fread() failed\n");
                    813:         exit(1);
                    814:     }
                    815:     if (fread(kernel, 1, kernel_size, f) != kernel_size) {
                    816:         fprintf(stderr, "fread() failed\n");
                    817:         exit(1);
                    818:     }
1.1.1.6   root      819:     fclose(f);
1.1.1.12  root      820:     memcpy(setup, header, MIN(sizeof(header), setup_size));
                    821: 
                    822:     fw_cfg_add_i32(fw_cfg, FW_CFG_KERNEL_ADDR, prot_addr);
                    823:     fw_cfg_add_i32(fw_cfg, FW_CFG_KERNEL_SIZE, kernel_size);
                    824:     fw_cfg_add_bytes(fw_cfg, FW_CFG_KERNEL_DATA, kernel, kernel_size);
1.1.1.6   root      825: 
1.1.1.12  root      826:     fw_cfg_add_i32(fw_cfg, FW_CFG_SETUP_ADDR, real_addr);
                    827:     fw_cfg_add_i32(fw_cfg, FW_CFG_SETUP_SIZE, setup_size);
                    828:     fw_cfg_add_bytes(fw_cfg, FW_CFG_SETUP_DATA, setup, setup_size);
1.1.1.9   root      829: 
1.1.1.16  root      830:     option_rom[nb_option_roms].name = "linuxboot.bin";
                    831:     option_rom[nb_option_roms].bootindex = 0;
1.1.1.12  root      832:     nb_option_roms++;
1.1.1.6   root      833: }
                    834: 
1.1       root      835: #define NE2000_NB_MAX 6
                    836: 
1.1.1.12  root      837: static const int ne2000_io[NE2000_NB_MAX] = { 0x300, 0x320, 0x340, 0x360,
                    838:                                               0x280, 0x380 };
                    839: static const int ne2000_irq[NE2000_NB_MAX] = { 9, 10, 11, 3, 4, 5 };
1.1       root      840: 
1.1.1.12  root      841: static const int parallel_io[MAX_PARALLEL_PORTS] = { 0x378, 0x278, 0x3bc };
                    842: static const int parallel_irq[MAX_PARALLEL_PORTS] = { 7, 7, 7 };
1.1       root      843: 
1.1.1.15  root      844: void pc_init_ne2k_isa(NICInfo *nd)
1.1.1.3   root      845: {
                    846:     static int nb_ne2k = 0;
                    847: 
                    848:     if (nb_ne2k == NE2000_NB_MAX)
                    849:         return;
1.1.1.12  root      850:     isa_ne2000_init(ne2000_io[nb_ne2k],
                    851:                     ne2000_irq[nb_ne2k], nd);
1.1.1.3   root      852:     nb_ne2k++;
                    853: }
                    854: 
1.1.1.11  root      855: int cpu_is_bsp(CPUState *env)
                    856: {
1.1.1.15  root      857:     /* We hard-wire the BSP to the first CPU. */
                    858:     return env->cpu_index == 0;
                    859: }
                    860: 
                    861: DeviceState *cpu_get_current_apic(void)
                    862: {
                    863:     if (cpu_single_env) {
                    864:         return cpu_single_env->apic_state;
                    865:     } else {
                    866:         return NULL;
                    867:     }
                    868: }
                    869: 
                    870: static DeviceState *apic_init(void *env, uint8_t apic_id)
                    871: {
                    872:     DeviceState *dev;
                    873:     SysBusDevice *d;
                    874:     static int apic_mapped;
                    875: 
                    876:     dev = qdev_create(NULL, "apic");
                    877:     qdev_prop_set_uint8(dev, "id", apic_id);
                    878:     qdev_prop_set_ptr(dev, "cpu_env", env);
                    879:     qdev_init_nofail(dev);
                    880:     d = sysbus_from_qdev(dev);
                    881: 
                    882:     /* XXX: mapping more APICs at the same memory location */
                    883:     if (apic_mapped == 0) {
                    884:         /* NOTE: the APIC is directly connected to the CPU - it is not
                    885:            on the global memory bus. */
                    886:         /* XXX: what if the base changes? */
                    887:         sysbus_mmio_map(d, 0, MSI_ADDR_BASE);
                    888:         apic_mapped = 1;
                    889:     }
                    890: 
                    891:     msix_supported = 1;
                    892: 
                    893:     return dev;
                    894: }
                    895: 
                    896: /* set CMOS shutdown status register (index 0xF) as S3_resume(0xFE)
                    897:    BIOS will read it and start S3 resume at POST Entry */
                    898: void pc_cmos_set_s3_resume(void *opaque, int irq, int level)
                    899: {
                    900:     ISADevice *s = opaque;
                    901: 
                    902:     if (level) {
                    903:         rtc_set_memory(s, 0xF, 0xFE);
                    904:     }
                    905: }
                    906: 
                    907: void pc_acpi_smi_interrupt(void *opaque, int irq, int level)
                    908: {
                    909:     CPUState *s = opaque;
                    910: 
                    911:     if (level) {
                    912:         cpu_interrupt(s, CPU_INTERRUPT_SMI);
                    913:     }
                    914: }
                    915: 
                    916: static void pc_cpu_reset(void *opaque)
                    917: {
                    918:     CPUState *env = opaque;
                    919: 
                    920:     cpu_reset(env);
                    921:     env->halted = !cpu_is_bsp(env);
1.1.1.11  root      922: }
                    923: 
                    924: static CPUState *pc_new_cpu(const char *cpu_model)
                    925: {
                    926:     CPUState *env;
                    927: 
                    928:     env = cpu_init(cpu_model);
                    929:     if (!env) {
                    930:         fprintf(stderr, "Unable to find x86 CPU definition\n");
                    931:         exit(1);
                    932:     }
                    933:     if ((env->cpuid_features & CPUID_APIC) || smp_cpus > 1) {
                    934:         env->cpuid_apic_id = env->cpu_index;
1.1.1.15  root      935:         env->apic_state = apic_init(env, env->cpuid_apic_id);
1.1.1.11  root      936:     }
1.1.1.15  root      937:     qemu_register_reset(pc_cpu_reset, env);
                    938:     pc_cpu_reset(env);
1.1.1.11  root      939:     return env;
                    940: }
                    941: 
1.1.1.15  root      942: void pc_cpus_init(const char *cpu_model)
                    943: {
                    944:     int i;
                    945: 
                    946:     /* init CPUs */
                    947:     if (cpu_model == NULL) {
                    948: #ifdef TARGET_X86_64
                    949:         cpu_model = "qemu64";
                    950: #else
                    951:         cpu_model = "qemu32";
                    952: #endif
                    953:     }
                    954: 
                    955:     for(i = 0; i < smp_cpus; i++) {
                    956:         pc_new_cpu(cpu_model);
                    957:     }
                    958: }
                    959: 
1.1.1.18! root      960: void pc_memory_init(const char *kernel_filename,
1.1.1.15  root      961:                     const char *kernel_cmdline,
                    962:                     const char *initrd_filename,
1.1.1.18! root      963:                     ram_addr_t below_4g_mem_size,
        !           964:                     ram_addr_t above_4g_mem_size)
1.1       root      965: {
1.1.1.11  root      966:     char *filename;
1.1.1.6   root      967:     int ret, linux_boot, i;
1.1.1.11  root      968:     ram_addr_t ram_addr, bios_offset, option_rom_offset;
1.1.1.12  root      969:     int bios_size, isa_bios_size;
1.1.1.11  root      970:     void *fw_cfg;
1.1       root      971: 
1.1.1.15  root      972:     linux_boot = (kernel_filename != NULL);
1.1.1.7   root      973: 
1.1       root      974:     /* allocate RAM */
1.1.1.15  root      975:     ram_addr = qemu_ram_alloc(NULL, "pc.ram",
                    976:                               below_4g_mem_size + above_4g_mem_size);
1.1.1.7   root      977:     cpu_register_physical_memory(0, 0xa0000, ram_addr);
                    978:     cpu_register_physical_memory(0x100000,
                    979:                  below_4g_mem_size - 0x100000,
1.1.1.15  root      980:                  ram_addr + 0x100000);
1.1.1.7   root      981:     if (above_4g_mem_size > 0) {
1.1.1.15  root      982:         cpu_register_physical_memory(0x100000000ULL, above_4g_mem_size,
                    983:                                      ram_addr + below_4g_mem_size);
1.1.1.7   root      984:     }
1.1       root      985: 
1.1.1.6   root      986:     /* BIOS load */
                    987:     if (bios_name == NULL)
                    988:         bios_name = BIOS_FILENAME;
1.1.1.11  root      989:     filename = qemu_find_file(QEMU_FILE_TYPE_BIOS, bios_name);
                    990:     if (filename) {
                    991:         bios_size = get_image_size(filename);
                    992:     } else {
                    993:         bios_size = -1;
                    994:     }
1.1.1.6   root      995:     if (bios_size <= 0 ||
                    996:         (bios_size % 65536) != 0) {
1.1       root      997:         goto bios_error;
                    998:     }
1.1.1.15  root      999:     bios_offset = qemu_ram_alloc(NULL, "pc.bios", bios_size);
1.1.1.16  root     1000:     ret = rom_add_file_fixed(bios_name, (uint32_t)(-bios_size), -1);
1.1.1.12  root     1001:     if (ret != 0) {
1.1       root     1002:     bios_error:
1.1.1.11  root     1003:         fprintf(stderr, "qemu: could not load PC BIOS '%s'\n", bios_name);
1.1       root     1004:         exit(1);
                   1005:     }
1.1.1.11  root     1006:     if (filename) {
                   1007:         qemu_free(filename);
1.1.1.7   root     1008:     }
1.1       root     1009:     /* map the last 128KB of the BIOS in ISA space */
                   1010:     isa_bios_size = bios_size;
                   1011:     if (isa_bios_size > (128 * 1024))
                   1012:         isa_bios_size = 128 * 1024;
1.1.1.6   root     1013:     cpu_register_physical_memory(0x100000 - isa_bios_size,
                   1014:                                  isa_bios_size,
1.1       root     1015:                                  (bios_offset + bios_size - isa_bios_size) | IO_MEM_ROM);
1.1.1.5   root     1016: 
1.1.1.15  root     1017:     option_rom_offset = qemu_ram_alloc(NULL, "pc.rom", PC_ROM_SIZE);
1.1.1.12  root     1018:     cpu_register_physical_memory(PC_ROM_MIN_VGA, PC_ROM_SIZE, option_rom_offset);
1.1.1.5   root     1019: 
1.1       root     1020:     /* map all the bios at the top of memory */
1.1.1.6   root     1021:     cpu_register_physical_memory((uint32_t)(-bios_size),
1.1       root     1022:                                  bios_size, bios_offset | IO_MEM_ROM);
1.1.1.6   root     1023: 
1.1.1.11  root     1024:     fw_cfg = bochs_bios_init();
1.1.1.13  root     1025:     rom_set_fw(fw_cfg);
1.1.1.11  root     1026: 
                   1027:     if (linux_boot) {
1.1.1.12  root     1028:         load_linux(fw_cfg, kernel_filename, initrd_filename, kernel_cmdline, below_4g_mem_size);
1.1.1.11  root     1029:     }
                   1030: 
                   1031:     for (i = 0; i < nb_option_roms; i++) {
1.1.1.16  root     1032:         rom_add_option(option_rom[i].name, option_rom[i].bootindex);
1.1.1.11  root     1033:     }
1.1.1.15  root     1034: }
1.1       root     1035: 
1.1.1.15  root     1036: qemu_irq *pc_allocate_cpu_irq(void)
                   1037: {
                   1038:     return qemu_allocate_irqs(pic_irq_request, NULL, 1);
                   1039: }
1.1       root     1040: 
1.1.1.15  root     1041: void pc_vga_init(PCIBus *pci_bus)
                   1042: {
1.1       root     1043:     if (cirrus_vga_enabled) {
1.1.1.15  root     1044:         if (pci_bus) {
1.1.1.11  root     1045:             pci_cirrus_vga_init(pci_bus);
1.1       root     1046:         } else {
1.1.1.11  root     1047:             isa_cirrus_vga_init();
1.1       root     1048:         }
1.1.1.6   root     1049:     } else if (vmsvga_enabled) {
1.1.1.18! root     1050:         if (pci_bus) {
        !          1051:             if (!pci_vmsvga_init(pci_bus)) {
        !          1052:                 fprintf(stderr, "Warning: vmware_vga not available,"
        !          1053:                         " using standard VGA instead\n");
        !          1054:                 pci_vga_init(pci_bus);
        !          1055:             }
        !          1056:         } else {
1.1.1.6   root     1057:             fprintf(stderr, "%s: vmware_vga: no PCI bus\n", __FUNCTION__);
1.1.1.18! root     1058:         }
1.1.1.16  root     1059: #ifdef CONFIG_SPICE
                   1060:     } else if (qxl_enabled) {
                   1061:         if (pci_bus)
                   1062:             pci_create_simple(pci_bus, -1, "qxl-vga");
                   1063:         else
                   1064:             fprintf(stderr, "%s: qxl: no PCI bus\n", __FUNCTION__);
                   1065: #endif
1.1.1.7   root     1066:     } else if (std_vga_enabled) {
1.1.1.15  root     1067:         if (pci_bus) {
1.1.1.16  root     1068:             pci_vga_init(pci_bus);
1.1.1.5   root     1069:         } else {
1.1.1.11  root     1070:             isa_vga_init();
1.1.1.5   root     1071:         }
1.1       root     1072:     }
1.1.1.18! root     1073: 
        !          1074:     /*
        !          1075:      * sga does not suppress normal vga output. So a machine can have both a
        !          1076:      * vga card and sga manually enabled. Output will be seen on both.
        !          1077:      * For nographic case, sga is enabled at all times
        !          1078:      */
        !          1079:     if (display_type == DT_NOGRAPHIC) {
        !          1080:         isa_create_simple("sga");
        !          1081:     }
1.1.1.15  root     1082: }
1.1       root     1083: 
1.1.1.15  root     1084: static void cpu_request_exit(void *opaque, int irq, int level)
                   1085: {
                   1086:     CPUState *env = cpu_single_env;
1.1.1.7   root     1087: 
1.1.1.15  root     1088:     if (env && level) {
                   1089:         cpu_exit(env);
                   1090:     }
                   1091: }
                   1092: 
                   1093: void pc_basic_device_init(qemu_irq *isa_irq,
1.1.1.18! root     1094:                           ISADevice **rtc_state,
        !          1095:                           bool no_vmport)
1.1.1.15  root     1096: {
                   1097:     int i;
                   1098:     DriveInfo *fd[MAX_FD];
                   1099:     qemu_irq rtc_irq = NULL;
                   1100:     qemu_irq *a20_line;
1.1.1.18! root     1101:     ISADevice *i8042, *port92, *vmmouse, *pit;
1.1.1.15  root     1102:     qemu_irq *cpu_exit_irq;
                   1103: 
                   1104:     register_ioport_write(0x80, 1, 1, ioport80_write, NULL);
                   1105: 
                   1106:     register_ioport_write(0xf0, 1, 1, ioportF0_write, NULL);
1.1       root     1107: 
1.1.1.15  root     1108:     if (!no_hpet) {
1.1.1.18! root     1109:         DeviceState *hpet = sysbus_try_create_simple("hpet", HPET_BASE, NULL);
1.1       root     1110: 
1.1.1.18! root     1111:         if (hpet) {
        !          1112:             for (i = 0; i < 24; i++) {
        !          1113:                 sysbus_connect_irq(sysbus_from_qdev(hpet), i, isa_irq[i]);
        !          1114:             }
        !          1115:             rtc_irq = qdev_get_gpio_in(hpet, 0);
1.1.1.15  root     1116:         }
1.1       root     1117:     }
1.1.1.15  root     1118:     *rtc_state = rtc_init(2000, rtc_irq);
                   1119: 
                   1120:     qemu_register_boot_set(pc_boot_set, *rtc_state);
                   1121: 
1.1.1.18! root     1122:     pit = pit_init(0x40, 0);
1.1.1.3   root     1123:     pcspk_init(pit);
1.1       root     1124: 
                   1125:     for(i = 0; i < MAX_SERIAL_PORTS; i++) {
                   1126:         if (serial_hds[i]) {
1.1.1.12  root     1127:             serial_isa_init(i, serial_hds[i]);
1.1       root     1128:         }
                   1129:     }
                   1130: 
                   1131:     for(i = 0; i < MAX_PARALLEL_PORTS; i++) {
                   1132:         if (parallel_hds[i]) {
1.1.1.12  root     1133:             parallel_init(i, parallel_hds[i]);
1.1       root     1134:         }
                   1135:     }
                   1136: 
1.1.1.16  root     1137:     a20_line = qemu_allocate_irqs(handle_a20_line_change, first_cpu, 2);
1.1.1.15  root     1138:     i8042 = isa_create_simple("i8042");
1.1.1.16  root     1139:     i8042_setup_a20_line(i8042, &a20_line[0]);
1.1.1.18! root     1140:     if (!no_vmport) {
        !          1141:         vmport_init();
        !          1142:         vmmouse = isa_try_create("vmmouse");
        !          1143:     } else {
        !          1144:         vmmouse = NULL;
        !          1145:     }
        !          1146:     if (vmmouse) {
        !          1147:         qdev_prop_set_ptr(&vmmouse->qdev, "ps2_mouse", i8042);
        !          1148:         qdev_init_nofail(&vmmouse->qdev);
        !          1149:     }
1.1.1.16  root     1150:     port92 = isa_create_simple("port92");
                   1151:     port92_init(port92, &a20_line[1]);
1.1.1.7   root     1152: 
1.1.1.15  root     1153:     cpu_exit_irq = qemu_allocate_irqs(cpu_request_exit, NULL, 1);
                   1154:     DMA_init(0, cpu_exit_irq);
1.1       root     1155: 
1.1.1.6   root     1156:     for(i = 0; i < MAX_FD; i++) {
1.1.1.12  root     1157:         fd[i] = drive_get(IF_FLOPPY, 0, i);
1.1.1.6   root     1158:     }
1.1.1.18! root     1159:     fdctrl_init_isa(fd);
1.1       root     1160: }
                   1161: 
1.1.1.15  root     1162: void pc_pci_device_init(PCIBus *pci_bus)
1.1.1.7   root     1163: {
1.1.1.15  root     1164:     int max_bus;
                   1165:     int bus;
1.1.1.7   root     1166: 
1.1.1.15  root     1167:     max_bus = drive_get_max_bus(IF_SCSI);
                   1168:     for (bus = 0; bus <= max_bus; bus++) {
                   1169:         pci_create_simple(pci_bus, -1, "lsi53c895a");
1.1.1.13  root     1170:     }
1.1.1.11  root     1171: }

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