| /* |
| * QEMU PC System Emulator |
| * |
| * Copyright (c) 2003-2004 Fabrice Bellard |
| * |
| * Permission is hereby granted, free of charge, to any person obtaining a copy |
| * of this software and associated documentation files (the "Software"), to deal |
| * in the Software without restriction, including without limitation the rights |
| * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell |
| * copies of the Software, and to permit persons to whom the Software is |
| * furnished to do so, subject to the following conditions: |
| * |
| * The above copyright notice and this permission notice shall be included in |
| * all copies or substantial portions of the Software. |
| * |
| * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
| * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
| * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
| * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN |
| * THE SOFTWARE. |
| */ |
| #include "vl.h" |
| |
| /* output Bochs bios info messages */ |
| //#define DEBUG_BIOS |
| |
| #define BIOS_FILENAME "bios.bin" |
| #define VGABIOS_FILENAME "vgabios.bin" |
| #define VGABIOS_CIRRUS_FILENAME "vgabios-cirrus.bin" |
| #define LINUX_BOOT_FILENAME "linux_boot.bin" |
| |
| #define KERNEL_LOAD_ADDR 0x00100000 |
| #define INITRD_LOAD_ADDR 0x00400000 |
| #define KERNEL_PARAMS_ADDR 0x00090000 |
| #define KERNEL_CMDLINE_ADDR 0x00099000 |
| |
| static fdctrl_t *floppy_controller; |
| static RTCState *rtc_state; |
| static PITState *pit; |
| static IOAPICState *ioapic; |
| static USBPort *usb_root_ports[2]; |
| |
| static void ioport80_write(void *opaque, uint32_t addr, uint32_t data) |
| { |
| } |
| |
| /* MSDOS compatibility mode FPU exception support */ |
| /* XXX: add IGNNE support */ |
| void cpu_set_ferr(CPUX86State *s) |
| { |
| pic_set_irq(13, 1); |
| } |
| |
| static void ioportF0_write(void *opaque, uint32_t addr, uint32_t data) |
| { |
| pic_set_irq(13, 0); |
| } |
| |
| /* TSC handling */ |
| |
| uint64_t cpu_get_tsc(CPUX86State *env) |
| { |
| return qemu_get_clock(vm_clock); |
| } |
| |
| /* IRQ handling */ |
| int cpu_get_pic_interrupt(CPUState *env) |
| { |
| int intno; |
| |
| intno = apic_get_interrupt(env); |
| if (intno >= 0) { |
| /* set irq request if a PIC irq is still pending */ |
| /* XXX: improve that */ |
| pic_update_irq(isa_pic); |
| return intno; |
| } |
| /* read the irq from the PIC */ |
| intno = pic_read_irq(isa_pic); |
| return intno; |
| } |
| |
| static void pic_irq_request(void *opaque, int level) |
| { |
| CPUState *env = opaque; |
| if (level) |
| cpu_interrupt(env, CPU_INTERRUPT_HARD); |
| else |
| cpu_reset_interrupt(env, CPU_INTERRUPT_HARD); |
| } |
| |
| /* PC cmos mappings */ |
| |
| #define REG_EQUIPMENT_BYTE 0x14 |
| #define REG_IBM_CENTURY_BYTE 0x32 |
| #define REG_IBM_PS2_CENTURY_BYTE 0x37 |
| |
| |
| static inline int to_bcd(RTCState *s, int a) |
| { |
| return ((a / 10) << 4) | (a % 10); |
| } |
| |
| static int cmos_get_fd_drive_type(int fd0) |
| { |
| int val; |
| |
| switch (fd0) { |
| case 0: |
| /* 1.44 Mb 3"5 drive */ |
| val = 4; |
| break; |
| case 1: |
| /* 2.88 Mb 3"5 drive */ |
| val = 5; |
| break; |
| case 2: |
| /* 1.2 Mb 5"5 drive */ |
| val = 2; |
| break; |
| default: |
| val = 0; |
| break; |
| } |
| return val; |
| } |
| |
| static void cmos_init_hd(int type_ofs, int info_ofs, BlockDriverState *hd) |
| { |
| RTCState *s = rtc_state; |
| int cylinders, heads, sectors; |
| bdrv_get_geometry_hint(hd, &cylinders, &heads, §ors); |
| rtc_set_memory(s, type_ofs, 47); |
| rtc_set_memory(s, info_ofs, cylinders); |
| rtc_set_memory(s, info_ofs + 1, cylinders >> 8); |
| rtc_set_memory(s, info_ofs + 2, heads); |
| rtc_set_memory(s, info_ofs + 3, 0xff); |
| rtc_set_memory(s, info_ofs + 4, 0xff); |
| rtc_set_memory(s, info_ofs + 5, 0xc0 | ((heads > 8) << 3)); |
| rtc_set_memory(s, info_ofs + 6, cylinders); |
| rtc_set_memory(s, info_ofs + 7, cylinders >> 8); |
| rtc_set_memory(s, info_ofs + 8, sectors); |
| } |
| |
| /* hd_table must contain 4 block drivers */ |
| static void cmos_init(int ram_size, int boot_device, BlockDriverState **hd_table) |
| { |
| RTCState *s = rtc_state; |
| int val; |
| int fd0, fd1, nb; |
| time_t ti; |
| struct tm *tm; |
| int i; |
| |
| /* set the CMOS date */ |
| time(&ti); |
| if (rtc_utc) |
| tm = gmtime(&ti); |
| else |
| tm = localtime(&ti); |
| rtc_set_date(s, tm); |
| |
| val = to_bcd(s, (tm->tm_year / 100) + 19); |
| rtc_set_memory(s, REG_IBM_CENTURY_BYTE, val); |
| rtc_set_memory(s, REG_IBM_PS2_CENTURY_BYTE, val); |
| |
| /* various important CMOS locations needed by PC/Bochs bios */ |
| |
| /* memory size */ |
| val = 640; /* base memory in K */ |
| rtc_set_memory(s, 0x15, val); |
| rtc_set_memory(s, 0x16, val >> 8); |
| |
| val = (ram_size / 1024) - 1024; |
| if (val > 65535) |
| val = 65535; |
| rtc_set_memory(s, 0x17, val); |
| rtc_set_memory(s, 0x18, val >> 8); |
| rtc_set_memory(s, 0x30, val); |
| rtc_set_memory(s, 0x31, val >> 8); |
| |
| if (ram_size > (16 * 1024 * 1024)) |
| val = (ram_size / 65536) - ((16 * 1024 * 1024) / 65536); |
| else |
| val = 0; |
| if (val > 65535) |
| val = 65535; |
| rtc_set_memory(s, 0x34, val); |
| rtc_set_memory(s, 0x35, val >> 8); |
| |
| switch(boot_device) { |
| case 'a': |
| case 'b': |
| rtc_set_memory(s, 0x3d, 0x01); /* floppy boot */ |
| break; |
| default: |
| case 'c': |
| rtc_set_memory(s, 0x3d, 0x02); /* hard drive boot */ |
| break; |
| case 'd': |
| rtc_set_memory(s, 0x3d, 0x03); /* CD-ROM boot */ |
| break; |
| } |
| |
| /* floppy type */ |
| |
| fd0 = fdctrl_get_drive_type(floppy_controller, 0); |
| fd1 = fdctrl_get_drive_type(floppy_controller, 1); |
| |
| val = (cmos_get_fd_drive_type(fd0) << 4) | cmos_get_fd_drive_type(fd1); |
| rtc_set_memory(s, 0x10, val); |
| |
| val = 0; |
| nb = 0; |
| if (fd0 < 3) |
| nb++; |
| if (fd1 < 3) |
| nb++; |
| switch (nb) { |
| case 0: |
| break; |
| case 1: |
| val |= 0x01; /* 1 drive, ready for boot */ |
| break; |
| case 2: |
| val |= 0x41; /* 2 drives, ready for boot */ |
| break; |
| } |
| val |= 0x02; /* FPU is there */ |
| val |= 0x04; /* PS/2 mouse installed */ |
| rtc_set_memory(s, REG_EQUIPMENT_BYTE, val); |
| |
| /* hard drives */ |
| |
| rtc_set_memory(s, 0x12, (hd_table[0] ? 0xf0 : 0) | (hd_table[1] ? 0x0f : 0)); |
| if (hd_table[0]) |
| cmos_init_hd(0x19, 0x1b, hd_table[0]); |
| if (hd_table[1]) |
| cmos_init_hd(0x1a, 0x24, hd_table[1]); |
| |
| val = 0; |
| for (i = 0; i < 4; i++) { |
| if (hd_table[i]) { |
| int cylinders, heads, sectors, translation; |
| /* NOTE: bdrv_get_geometry_hint() returns the physical |
| geometry. It is always such that: 1 <= sects <= 63, 1 |
| <= heads <= 16, 1 <= cylinders <= 16383. The BIOS |
| geometry can be different if a translation is done. */ |
| translation = bdrv_get_translation_hint(hd_table[i]); |
| if (translation == BIOS_ATA_TRANSLATION_AUTO) { |
| bdrv_get_geometry_hint(hd_table[i], &cylinders, &heads, §ors); |
| if (cylinders <= 1024 && heads <= 16 && sectors <= 63) { |
| /* No translation. */ |
| translation = 0; |
| } else { |
| /* LBA translation. */ |
| translation = 1; |
| } |
| } else { |
| translation--; |
| } |
| val |= translation << (i * 2); |
| } |
| } |
| rtc_set_memory(s, 0x39, val); |
| |
| /* Disable check of 0x55AA signature on the last two bytes of |
| first sector of disk. XXX: make it the default ? */ |
| // rtc_set_memory(s, 0x38, 1); |
| } |
| |
| void ioport_set_a20(int enable) |
| { |
| /* XXX: send to all CPUs ? */ |
| cpu_x86_set_a20(first_cpu, enable); |
| } |
| |
| int ioport_get_a20(void) |
| { |
| return ((first_cpu->a20_mask >> 20) & 1); |
| } |
| |
| static void ioport92_write(void *opaque, uint32_t addr, uint32_t val) |
| { |
| ioport_set_a20((val >> 1) & 1); |
| /* XXX: bit 0 is fast reset */ |
| } |
| |
| static uint32_t ioport92_read(void *opaque, uint32_t addr) |
| { |
| return ioport_get_a20() << 1; |
| } |
| |
| /***********************************************************/ |
| /* Bochs BIOS debug ports */ |
| |
| void bochs_bios_write(void *opaque, uint32_t addr, uint32_t val) |
| { |
| static const char shutdown_str[8] = "Shutdown"; |
| static int shutdown_index = 0; |
| |
| switch(addr) { |
| /* Bochs BIOS messages */ |
| case 0x400: |
| case 0x401: |
| fprintf(stderr, "BIOS panic at rombios.c, line %d\n", val); |
| exit(1); |
| case 0x402: |
| case 0x403: |
| #ifdef DEBUG_BIOS |
| fprintf(stderr, "%c", val); |
| #endif |
| break; |
| case 0x8900: |
| /* same as Bochs power off */ |
| if (val == shutdown_str[shutdown_index]) { |
| shutdown_index++; |
| if (shutdown_index == 8) { |
| shutdown_index = 0; |
| qemu_system_shutdown_request(); |
| } |
| } else { |
| shutdown_index = 0; |
| } |
| break; |
| |
| /* LGPL'ed VGA BIOS messages */ |
| case 0x501: |
| case 0x502: |
| fprintf(stderr, "VGA BIOS panic, line %d\n", val); |
| exit(1); |
| case 0x500: |
| case 0x503: |
| #ifdef DEBUG_BIOS |
| fprintf(stderr, "%c", val); |
| #endif |
| break; |
| } |
| } |
| |
| void bochs_bios_init(void) |
| { |
| register_ioport_write(0x400, 1, 2, bochs_bios_write, NULL); |
| register_ioport_write(0x401, 1, 2, bochs_bios_write, NULL); |
| register_ioport_write(0x402, 1, 1, bochs_bios_write, NULL); |
| register_ioport_write(0x403, 1, 1, bochs_bios_write, NULL); |
| register_ioport_write(0x8900, 1, 1, bochs_bios_write, NULL); |
| |
| register_ioport_write(0x501, 1, 2, bochs_bios_write, NULL); |
| register_ioport_write(0x502, 1, 2, bochs_bios_write, NULL); |
| register_ioport_write(0x500, 1, 1, bochs_bios_write, NULL); |
| register_ioport_write(0x503, 1, 1, bochs_bios_write, NULL); |
| } |
| |
| |
| int load_kernel(const char *filename, uint8_t *addr, |
| uint8_t *real_addr) |
| { |
| int fd, size; |
| int setup_sects; |
| |
| fd = open(filename, O_RDONLY | O_BINARY); |
| if (fd < 0) |
| return -1; |
| |
| /* load 16 bit code */ |
| if (read(fd, real_addr, 512) != 512) |
| goto fail; |
| setup_sects = real_addr[0x1F1]; |
| if (!setup_sects) |
| setup_sects = 4; |
| if (read(fd, real_addr + 512, setup_sects * 512) != |
| setup_sects * 512) |
| goto fail; |
| |
| /* load 32 bit code */ |
| size = read(fd, addr, 16 * 1024 * 1024); |
| if (size < 0) |
| goto fail; |
| close(fd); |
| return size; |
| fail: |
| close(fd); |
| return -1; |
| } |
| |
| static void main_cpu_reset(void *opaque) |
| { |
| CPUState *env = opaque; |
| cpu_reset(env); |
| } |
| |
| /*************************************************/ |
| |
| static void putb(uint8_t **pp, int val) |
| { |
| uint8_t *q; |
| q = *pp; |
| *q++ = val; |
| *pp = q; |
| } |
| |
| static void putstr(uint8_t **pp, const char *str) |
| { |
| uint8_t *q; |
| q = *pp; |
| while (*str) |
| *q++ = *str++; |
| *pp = q; |
| } |
| |
| static void putle16(uint8_t **pp, int val) |
| { |
| uint8_t *q; |
| q = *pp; |
| *q++ = val; |
| *q++ = val >> 8; |
| *pp = q; |
| } |
| |
| static void putle32(uint8_t **pp, int val) |
| { |
| uint8_t *q; |
| q = *pp; |
| *q++ = val; |
| *q++ = val >> 8; |
| *q++ = val >> 16; |
| *q++ = val >> 24; |
| *pp = q; |
| } |
| |
| static int mpf_checksum(const uint8_t *data, int len) |
| { |
| int sum, i; |
| sum = 0; |
| for(i = 0; i < len; i++) |
| sum += data[i]; |
| return sum & 0xff; |
| } |
| |
| /* Build the Multi Processor table in the BIOS. Same values as Bochs. */ |
| static void bios_add_mptable(uint8_t *bios_data) |
| { |
| uint8_t *mp_config_table, *q, *float_pointer_struct; |
| int ioapic_id, offset, i, len; |
| |
| if (smp_cpus <= 1) |
| return; |
| |
| mp_config_table = bios_data + 0xb000; |
| q = mp_config_table; |
| putstr(&q, "PCMP"); /* "PCMP signature */ |
| putle16(&q, 0); /* table length (patched later) */ |
| putb(&q, 4); /* spec rev */ |
| putb(&q, 0); /* checksum (patched later) */ |
| putstr(&q, "QEMUCPU "); /* OEM id */ |
| putstr(&q, "0.1 "); /* vendor id */ |
| putle32(&q, 0); /* OEM table ptr */ |
| putle16(&q, 0); /* OEM table size */ |
| putle16(&q, 20); /* entry count */ |
| putle32(&q, 0xfee00000); /* local APIC addr */ |
| putle16(&q, 0); /* ext table length */ |
| putb(&q, 0); /* ext table checksum */ |
| putb(&q, 0); /* reserved */ |
| |
| for(i = 0; i < smp_cpus; i++) { |
| putb(&q, 0); /* entry type = processor */ |
| putb(&q, i); /* APIC id */ |
| putb(&q, 0x11); /* local APIC version number */ |
| if (i == 0) |
| putb(&q, 3); /* cpu flags: enabled, bootstrap cpu */ |
| else |
| putb(&q, 1); /* cpu flags: enabled */ |
| putb(&q, 0); /* cpu signature */ |
| putb(&q, 6); |
| putb(&q, 0); |
| putb(&q, 0); |
| putle16(&q, 0x201); /* feature flags */ |
| putle16(&q, 0); |
| |
| putle16(&q, 0); /* reserved */ |
| putle16(&q, 0); |
| putle16(&q, 0); |
| putle16(&q, 0); |
| } |
| |
| /* isa bus */ |
| putb(&q, 1); /* entry type = bus */ |
| putb(&q, 0); /* bus ID */ |
| putstr(&q, "ISA "); |
| |
| /* ioapic */ |
| ioapic_id = smp_cpus; |
| putb(&q, 2); /* entry type = I/O APIC */ |
| putb(&q, ioapic_id); /* apic ID */ |
| putb(&q, 0x11); /* I/O APIC version number */ |
| putb(&q, 1); /* enable */ |
| putle32(&q, 0xfec00000); /* I/O APIC addr */ |
| |
| /* irqs */ |
| for(i = 0; i < 16; i++) { |
| putb(&q, 3); /* entry type = I/O interrupt */ |
| putb(&q, 0); /* interrupt type = vectored interrupt */ |
| putb(&q, 0); /* flags: po=0, el=0 */ |
| putb(&q, 0); |
| putb(&q, 0); /* source bus ID = ISA */ |
| putb(&q, i); /* source bus IRQ */ |
| putb(&q, ioapic_id); /* dest I/O APIC ID */ |
| putb(&q, i); /* dest I/O APIC interrupt in */ |
| } |
| /* patch length */ |
| len = q - mp_config_table; |
| mp_config_table[4] = len; |
| mp_config_table[5] = len >> 8; |
| |
| mp_config_table[7] = -mpf_checksum(mp_config_table, q - mp_config_table); |
| |
| /* align to 16 */ |
| offset = q - bios_data; |
| offset = (offset + 15) & ~15; |
| float_pointer_struct = bios_data + offset; |
| |
| /* floating pointer structure */ |
| q = float_pointer_struct; |
| putstr(&q, "_MP_"); |
| /* pointer to MP config table */ |
| putle32(&q, mp_config_table - bios_data + 0x000f0000); |
| |
| putb(&q, 1); /* length in 16 byte units */ |
| putb(&q, 4); /* MP spec revision */ |
| putb(&q, 0); /* checksum (patched later) */ |
| putb(&q, 0); /* MP feature byte 1 */ |
| |
| putb(&q, 0); |
| putb(&q, 0); |
| putb(&q, 0); |
| putb(&q, 0); |
| float_pointer_struct[10] = |
| -mpf_checksum(float_pointer_struct, q - float_pointer_struct); |
| } |
| |
| |
| static const int ide_iobase[2] = { 0x1f0, 0x170 }; |
| static const int ide_iobase2[2] = { 0x3f6, 0x376 }; |
| static const int ide_irq[2] = { 14, 15 }; |
| |
| #define NE2000_NB_MAX 6 |
| |
| static int ne2000_io[NE2000_NB_MAX] = { 0x300, 0x320, 0x340, 0x360, 0x280, 0x380 }; |
| static int ne2000_irq[NE2000_NB_MAX] = { 9, 10, 11, 3, 4, 5 }; |
| |
| static int serial_io[MAX_SERIAL_PORTS] = { 0x3f8, 0x2f8, 0x3e8, 0x2e8 }; |
| static int serial_irq[MAX_SERIAL_PORTS] = { 4, 3, 4, 3 }; |
| |
| static int parallel_io[MAX_PARALLEL_PORTS] = { 0x378, 0x278, 0x3bc }; |
| static int parallel_irq[MAX_PARALLEL_PORTS] = { 7, 7, 7 }; |
| |
| #ifdef HAS_AUDIO |
| static void audio_init (PCIBus *pci_bus) |
| { |
| struct soundhw *c; |
| int audio_enabled = 0; |
| |
| for (c = soundhw; !audio_enabled && c->name; ++c) { |
| audio_enabled = c->enabled; |
| } |
| |
| if (audio_enabled) { |
| AudioState *s; |
| |
| s = AUD_init (); |
| if (s) { |
| for (c = soundhw; c->name; ++c) { |
| if (c->enabled) { |
| if (c->isa) { |
| c->init.init_isa (s); |
| } |
| else { |
| if (pci_bus) { |
| c->init.init_pci (pci_bus, s); |
| } |
| } |
| } |
| } |
| } |
| } |
| } |
| #endif |
| |
| static void pc_init_ne2k_isa(NICInfo *nd) |
| { |
| static int nb_ne2k = 0; |
| |
| if (nb_ne2k == NE2000_NB_MAX) |
| return; |
| isa_ne2000_init(ne2000_io[nb_ne2k], ne2000_irq[nb_ne2k], nd); |
| nb_ne2k++; |
| } |
| |
| /* PC hardware initialisation */ |
| static void pc_init1(int ram_size, int vga_ram_size, int boot_device, |
| DisplayState *ds, const char **fd_filename, int snapshot, |
| const char *kernel_filename, const char *kernel_cmdline, |
| const char *initrd_filename, |
| int pci_enabled) |
| { |
| char buf[1024]; |
| int ret, linux_boot, initrd_size, i; |
| unsigned long bios_offset, vga_bios_offset; |
| int bios_size, isa_bios_size; |
| PCIBus *pci_bus; |
| CPUState *env; |
| NICInfo *nd; |
| |
| linux_boot = (kernel_filename != NULL); |
| |
| /* init CPUs */ |
| for(i = 0; i < smp_cpus; i++) { |
| env = cpu_init(); |
| if (i != 0) |
| env->hflags |= HF_HALTED_MASK; |
| if (smp_cpus > 1) { |
| /* XXX: enable it in all cases */ |
| env->cpuid_features |= CPUID_APIC; |
| } |
| register_savevm("cpu", i, 3, cpu_save, cpu_load, env); |
| qemu_register_reset(main_cpu_reset, env); |
| if (pci_enabled) { |
| apic_init(env); |
| } |
| } |
| |
| /* allocate RAM */ |
| cpu_register_physical_memory(0, ram_size, 0); |
| |
| /* BIOS load */ |
| bios_offset = ram_size + vga_ram_size; |
| vga_bios_offset = bios_offset + 256 * 1024; |
| |
| snprintf(buf, sizeof(buf), "%s/%s", bios_dir, BIOS_FILENAME); |
| bios_size = get_image_size(buf); |
| if (bios_size <= 0 || |
| (bios_size % 65536) != 0 || |
| bios_size > (256 * 1024)) { |
| goto bios_error; |
| } |
| ret = load_image(buf, phys_ram_base + bios_offset); |
| if (ret != bios_size) { |
| bios_error: |
| fprintf(stderr, "qemu: could not load PC bios '%s'\n", buf); |
| exit(1); |
| } |
| if (bios_size == 65536) { |
| bios_add_mptable(phys_ram_base + bios_offset); |
| } |
| |
| /* VGA BIOS load */ |
| if (cirrus_vga_enabled) { |
| snprintf(buf, sizeof(buf), "%s/%s", bios_dir, VGABIOS_CIRRUS_FILENAME); |
| } else { |
| snprintf(buf, sizeof(buf), "%s/%s", bios_dir, VGABIOS_FILENAME); |
| } |
| ret = load_image(buf, phys_ram_base + vga_bios_offset); |
| |
| /* setup basic memory access */ |
| cpu_register_physical_memory(0xc0000, 0x10000, |
| vga_bios_offset | IO_MEM_ROM); |
| |
| /* map the last 128KB of the BIOS in ISA space */ |
| isa_bios_size = bios_size; |
| if (isa_bios_size > (128 * 1024)) |
| isa_bios_size = 128 * 1024; |
| cpu_register_physical_memory(0xd0000, (192 * 1024) - isa_bios_size, |
| IO_MEM_UNASSIGNED); |
| cpu_register_physical_memory(0x100000 - isa_bios_size, |
| isa_bios_size, |
| (bios_offset + bios_size - isa_bios_size) | IO_MEM_ROM); |
| /* map all the bios at the top of memory */ |
| cpu_register_physical_memory((uint32_t)(-bios_size), |
| bios_size, bios_offset | IO_MEM_ROM); |
| |
| bochs_bios_init(); |
| |
| if (linux_boot) { |
| uint8_t bootsect[512]; |
| uint8_t old_bootsect[512]; |
| |
| if (bs_table[0] == NULL) { |
| fprintf(stderr, "A disk image must be given for 'hda' when booting a Linux kernel\n"); |
| exit(1); |
| } |
| snprintf(buf, sizeof(buf), "%s/%s", bios_dir, LINUX_BOOT_FILENAME); |
| ret = load_image(buf, bootsect); |
| if (ret != sizeof(bootsect)) { |
| fprintf(stderr, "qemu: could not load linux boot sector '%s'\n", |
| buf); |
| exit(1); |
| } |
| |
| if (bdrv_read(bs_table[0], 0, old_bootsect, 1) >= 0) { |
| /* copy the MSDOS partition table */ |
| memcpy(bootsect + 0x1be, old_bootsect + 0x1be, 0x40); |
| } |
| |
| bdrv_set_boot_sector(bs_table[0], bootsect, sizeof(bootsect)); |
| |
| /* now we can load the kernel */ |
| ret = load_kernel(kernel_filename, |
| phys_ram_base + KERNEL_LOAD_ADDR, |
| phys_ram_base + KERNEL_PARAMS_ADDR); |
| if (ret < 0) { |
| fprintf(stderr, "qemu: could not load kernel '%s'\n", |
| kernel_filename); |
| exit(1); |
| } |
| |
| /* load initrd */ |
| initrd_size = 0; |
| if (initrd_filename) { |
| initrd_size = load_image(initrd_filename, phys_ram_base + INITRD_LOAD_ADDR); |
| if (initrd_size < 0) { |
| fprintf(stderr, "qemu: could not load initial ram disk '%s'\n", |
| initrd_filename); |
| exit(1); |
| } |
| } |
| if (initrd_size > 0) { |
| stl_raw(phys_ram_base + KERNEL_PARAMS_ADDR + 0x218, INITRD_LOAD_ADDR); |
| stl_raw(phys_ram_base + KERNEL_PARAMS_ADDR + 0x21c, initrd_size); |
| } |
| pstrcpy(phys_ram_base + KERNEL_CMDLINE_ADDR, 4096, |
| kernel_cmdline); |
| stw_raw(phys_ram_base + KERNEL_PARAMS_ADDR + 0x20, 0xA33F); |
| stw_raw(phys_ram_base + KERNEL_PARAMS_ADDR + 0x22, |
| KERNEL_CMDLINE_ADDR - KERNEL_PARAMS_ADDR); |
| /* loader type */ |
| stw_raw(phys_ram_base + KERNEL_PARAMS_ADDR + 0x210, 0x01); |
| } |
| |
| if (pci_enabled) { |
| pci_bus = i440fx_init(); |
| piix3_init(pci_bus); |
| } else { |
| pci_bus = NULL; |
| } |
| |
| /* init basic PC hardware */ |
| register_ioport_write(0x80, 1, 1, ioport80_write, NULL); |
| |
| register_ioport_write(0xf0, 1, 1, ioportF0_write, NULL); |
| |
| if (cirrus_vga_enabled) { |
| if (pci_enabled) { |
| pci_cirrus_vga_init(pci_bus, |
| ds, phys_ram_base + ram_size, ram_size, |
| vga_ram_size); |
| } else { |
| isa_cirrus_vga_init(ds, phys_ram_base + ram_size, ram_size, |
| vga_ram_size); |
| } |
| } else { |
| vga_initialize(pci_bus, ds, phys_ram_base + ram_size, ram_size, |
| vga_ram_size, 0, 0); |
| } |
| |
| rtc_state = rtc_init(0x70, 8); |
| |
| register_ioport_read(0x92, 1, 1, ioport92_read, NULL); |
| register_ioport_write(0x92, 1, 1, ioport92_write, NULL); |
| |
| if (pci_enabled) { |
| ioapic = ioapic_init(); |
| } |
| isa_pic = pic_init(pic_irq_request, first_cpu); |
| pit = pit_init(0x40, 0); |
| pcspk_init(pit); |
| if (pci_enabled) { |
| pic_set_alt_irq_func(isa_pic, ioapic_set_irq, ioapic); |
| } |
| |
| for(i = 0; i < MAX_SERIAL_PORTS; i++) { |
| if (serial_hds[i]) { |
| serial_init(&pic_set_irq_new, isa_pic, |
| serial_io[i], serial_irq[i], serial_hds[i]); |
| } |
| } |
| |
| for(i = 0; i < MAX_PARALLEL_PORTS; i++) { |
| if (parallel_hds[i]) { |
| parallel_init(parallel_io[i], parallel_irq[i], parallel_hds[i]); |
| } |
| } |
| |
| for(i = 0; i < nb_nics; i++) { |
| nd = &nd_table[i]; |
| if (!nd->model) { |
| if (pci_enabled) { |
| nd->model = "ne2k_pci"; |
| } else { |
| nd->model = "ne2k_isa"; |
| } |
| } |
| if (strcmp(nd->model, "ne2k_isa") == 0) { |
| pc_init_ne2k_isa(nd); |
| } else if (pci_enabled) { |
| pci_nic_init(pci_bus, nd); |
| } else { |
| fprintf(stderr, "qemu: Unsupported NIC: %s\n", nd->model); |
| exit(1); |
| } |
| } |
| |
| if (pci_enabled) { |
| pci_piix3_ide_init(pci_bus, bs_table); |
| } else { |
| for(i = 0; i < 2; i++) { |
| isa_ide_init(ide_iobase[i], ide_iobase2[i], ide_irq[i], |
| bs_table[2 * i], bs_table[2 * i + 1]); |
| } |
| } |
| |
| kbd_init(); |
| DMA_init(0); |
| #ifdef HAS_AUDIO |
| audio_init(pci_enabled ? pci_bus : NULL); |
| #endif |
| |
| floppy_controller = fdctrl_init(6, 2, 0, 0x3f0, fd_table); |
| |
| cmos_init(ram_size, boot_device, bs_table); |
| |
| if (pci_enabled && usb_enabled) { |
| usb_uhci_init(pci_bus, usb_root_ports); |
| usb_attach(usb_root_ports[0], vm_usb_hub); |
| } |
| |
| /* must be done after all PCI devices are instanciated */ |
| /* XXX: should be done in the Bochs BIOS */ |
| if (pci_enabled) { |
| pci_bios_init(); |
| } |
| } |
| |
| static void pc_init_pci(int ram_size, int vga_ram_size, int boot_device, |
| DisplayState *ds, const char **fd_filename, |
| int snapshot, |
| const char *kernel_filename, |
| const char *kernel_cmdline, |
| const char *initrd_filename) |
| { |
| pc_init1(ram_size, vga_ram_size, boot_device, |
| ds, fd_filename, snapshot, |
| kernel_filename, kernel_cmdline, |
| initrd_filename, 1); |
| } |
| |
| static void pc_init_isa(int ram_size, int vga_ram_size, int boot_device, |
| DisplayState *ds, const char **fd_filename, |
| int snapshot, |
| const char *kernel_filename, |
| const char *kernel_cmdline, |
| const char *initrd_filename) |
| { |
| pc_init1(ram_size, vga_ram_size, boot_device, |
| ds, fd_filename, snapshot, |
| kernel_filename, kernel_cmdline, |
| initrd_filename, 0); |
| } |
| |
| QEMUMachine pc_machine = { |
| "pc", |
| "Standard PC", |
| pc_init_pci, |
| }; |
| |
| QEMUMachine isapc_machine = { |
| "isapc", |
| "ISA-only PC", |
| pc_init_isa, |
| }; |
