X-Git-Url: https://vcs.maemo.org/git/?a=blobdiff_plain;f=hw%2Fpc.c;h=c561cbf2e6d23d9a8294a22126c5050c517a4666;hb=cd346349b45ef056f138a184f660b8c34c3213cc;hp=38c75d471c067919fbe30c6592ca9c61b31f5d70;hpb=fd06c37550b43980e8d641bb109c219cbe001d13;p=qemu diff --git a/hw/pc.c b/hw/pc.c index 38c75d4..c561cbf 100644 --- a/hw/pc.c +++ b/hw/pc.c @@ -1,8 +1,8 @@ /* * 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 @@ -29,42 +29,57 @@ #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 +/* Leave a chunk of memory at the top of RAM for the BIOS ACPI tables. */ +#define ACPI_DATA_SIZE 0x10000 static fdctrl_t *floppy_controller; static RTCState *rtc_state; static PITState *pit; static IOAPICState *ioapic; -static USBPort *usb_root_ports[2]; +static PCIDevice *i440fx_state; static void ioport80_write(void *opaque, uint32_t addr, uint32_t data) { } /* MSDOS compatibility mode FPU exception support */ +static qemu_irq ferr_irq; /* XXX: add IGNNE support */ void cpu_set_ferr(CPUX86State *s) { - pic_set_irq(13, 1); + qemu_irq_raise(ferr_irq); } static void ioportF0_write(void *opaque, uint32_t addr, uint32_t data) { - pic_set_irq(13, 0); + qemu_irq_lower(ferr_irq); } /* TSC handling */ - uint64_t cpu_get_tsc(CPUX86State *env) { - return qemu_get_clock(vm_clock); + /* Note: when using kqemu, it is more logical to return the host TSC + because kqemu does not trap the RDTSC instruction for + performance reasons */ +#if USE_KQEMU + if (env->kqemu_enabled) { + return cpu_get_real_ticks(); + } else +#endif + { + return cpu_get_ticks(); + } +} + +/* SMM support */ +void cpu_smm_update(CPUState *env) +{ + if (i440fx_state && env == first_cpu) + i440fx_set_smm(i440fx_state, (env->hflags >> HF_SMM_SHIFT) & 1); } + /* IRQ handling */ int cpu_get_pic_interrupt(CPUState *env) { @@ -74,34 +89,27 @@ int cpu_get_pic_interrupt(CPUState *env) if (intno >= 0) { /* set irq request if a PIC irq is still pending */ /* XXX: improve that */ - pic_update_irq(isa_pic); + pic_update_irq(isa_pic); return intno; } /* read the irq from the PIC */ + if (!apic_accept_pic_intr(env)) + return -1; + intno = pic_read_irq(isa_pic); return intno; } -static void pic_irq_request(void *opaque, int level) +static void pic_irq_request(void *opaque, int irq, int level) { CPUState *env = opaque; - if (level) + if (level && apic_accept_pic_intr(env)) 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) { @@ -127,7 +135,7 @@ static int cmos_get_fd_drive_type(int fd0) return val; } -static void cmos_init_hd(int type_ofs, int info_ofs, BlockDriverState *hd) +static void cmos_init_hd(int type_ofs, int info_ofs, BlockDriverState *hd) { RTCState *s = rtc_state; int cylinders, heads, sectors; @@ -150,22 +158,8 @@ 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 */ @@ -189,11 +183,13 @@ static void cmos_init(int ram_size, int boot_device, BlockDriverState **hd_table 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 */ + if (!fd_bootchk) + rtc_set_memory(s, 0x38, 0x01); /* disable signature check */ break; default: case 'c': @@ -202,6 +198,9 @@ static void cmos_init(int ram_size, int boot_device, BlockDriverState **hd_table case 'd': rtc_set_memory(s, 0x3d, 0x03); /* CD-ROM boot */ break; + case 'n': + rtc_set_memory(s, 0x3d, 0x04); /* Network boot */ + break; } /* floppy type */ @@ -211,7 +210,7 @@ static void cmos_init(int ram_size, int boot_device, BlockDriverState **hd_table 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) @@ -237,7 +236,7 @@ static void cmos_init(int ram_size, int boot_device, BlockDriverState **hd_table 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]) + if (hd_table[1]) cmos_init_hd(0x1a, 0x24, hd_table[1]); val = 0; @@ -265,10 +264,6 @@ static void cmos_init(int ram_size, int boot_device, BlockDriverState **hd_table } } 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) @@ -300,7 +295,7 @@ 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: @@ -354,8 +349,63 @@ void bochs_bios_init(void) register_ioport_write(0x503, 1, 1, bochs_bios_write, NULL); } +/* Generate an initial boot sector which sets state and jump to + a specified vector */ +static void generate_bootsect(uint32_t gpr[8], uint16_t segs[6], uint16_t ip) +{ + uint8_t bootsect[512], *p; + int i; + + if (bs_table[0] == NULL) { + fprintf(stderr, "A disk image must be given for 'hda' when booting " + "a Linux kernel\n"); + exit(1); + } + + memset(bootsect, 0, sizeof(bootsect)); + + /* Copy the MSDOS partition table if possible */ + bdrv_read(bs_table[0], 0, bootsect, 1); + + /* Make sure we have a partition signature */ + bootsect[510] = 0x55; + bootsect[511] = 0xaa; -int load_kernel(const char *filename, uint8_t *addr, + /* Actual code */ + p = bootsect; + *p++ = 0xfa; /* CLI */ + *p++ = 0xfc; /* CLD */ + + for (i = 0; i < 6; i++) { + if (i == 1) /* Skip CS */ + continue; + + *p++ = 0xb8; /* MOV AX,imm16 */ + *p++ = segs[i]; + *p++ = segs[i] >> 8; + *p++ = 0x8e; /* MOV ,AX */ + *p++ = 0xc0 + (i << 3); + } + + for (i = 0; i < 8; i++) { + *p++ = 0x66; /* 32-bit operand size */ + *p++ = 0xb8 + i; /* MOV ,imm32 */ + *p++ = gpr[i]; + *p++ = gpr[i] >> 8; + *p++ = gpr[i] >> 16; + *p++ = gpr[i] >> 24; + } + + *p++ = 0xea; /* JMP FAR */ + *p++ = ip; /* IP */ + *p++ = ip >> 8; + *p++ = segs[1]; /* CS */ + *p++ = segs[1] >> 8; + + bdrv_set_boot_sector(bs_table[0], bootsect, sizeof(bootsect)); +} + +int load_kernel(const char *filename, uint8_t *addr, uint8_t *real_addr) { int fd, size; @@ -371,10 +421,10 @@ int load_kernel(const char *filename, uint8_t *addr, setup_sects = real_addr[0x1F1]; if (!setup_sects) setup_sects = 4; - if (read(fd, real_addr + 512, setup_sects * 512) != + 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) @@ -386,161 +436,174 @@ int load_kernel(const char *filename, uint8_t *addr, return -1; } -static void main_cpu_reset(void *opaque) +static long get_file_size(FILE *f) { - CPUState *env = opaque; - cpu_reset(env); -} + long where, size; -/*************************************************/ + /* XXX: on Unix systems, using fstat() probably makes more sense */ -static void putb(uint8_t **pp, int val) -{ - uint8_t *q; - q = *pp; - *q++ = val; - *pp = q; -} + where = ftell(f); + fseek(f, 0, SEEK_END); + size = ftell(f); + fseek(f, where, SEEK_SET); -static void putstr(uint8_t **pp, const char *str) -{ - uint8_t *q; - q = *pp; - while (*str) - *q++ = *str++; - *pp = q; + return size; } -static void putle16(uint8_t **pp, int val) +static void load_linux(const char *kernel_filename, + const char *initrd_filename, + const char *kernel_cmdline) { - uint8_t *q; - q = *pp; - *q++ = val; - *q++ = val >> 8; - *pp = q; -} + uint16_t protocol; + uint32_t gpr[8]; + uint16_t seg[6]; + uint16_t real_seg; + int setup_size, kernel_size, initrd_size, cmdline_size; + uint32_t initrd_max; + uint8_t header[1024]; + uint8_t *real_addr, *prot_addr, *cmdline_addr, *initrd_addr; + FILE *f, *fi; + + /* Align to 16 bytes as a paranoia measure */ + cmdline_size = (strlen(kernel_cmdline)+16) & ~15; + + /* load the kernel header */ + f = fopen(kernel_filename, "rb"); + if (!f || !(kernel_size = get_file_size(f)) || + fread(header, 1, 1024, f) != 1024) { + fprintf(stderr, "qemu: could not load kernel '%s'\n", + kernel_filename); + exit(1); + } -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; -} + /* kernel protocol version */ + fprintf(stderr, "header magic: %#x\n", ldl_p(header+0x202)); + if (ldl_p(header+0x202) == 0x53726448) + protocol = lduw_p(header+0x206); + else + protocol = 0; + + if (protocol < 0x200 || !(header[0x211] & 0x01)) { + /* Low kernel */ + real_addr = phys_ram_base + 0x90000; + cmdline_addr = phys_ram_base + 0x9a000 - cmdline_size; + prot_addr = phys_ram_base + 0x10000; + } else if (protocol < 0x202) { + /* High but ancient kernel */ + real_addr = phys_ram_base + 0x90000; + cmdline_addr = phys_ram_base + 0x9a000 - cmdline_size; + prot_addr = phys_ram_base + 0x100000; + } else { + /* High and recent kernel */ + real_addr = phys_ram_base + 0x10000; + cmdline_addr = phys_ram_base + 0x20000; + prot_addr = phys_ram_base + 0x100000; + } -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; -} + fprintf(stderr, + "qemu: real_addr = %#zx\n" + "qemu: cmdline_addr = %#zx\n" + "qemu: prot_addr = %#zx\n", + real_addr-phys_ram_base, + cmdline_addr-phys_ram_base, + prot_addr-phys_ram_base); + + /* highest address for loading the initrd */ + if (protocol >= 0x203) + initrd_max = ldl_p(header+0x22c); + else + initrd_max = 0x37ffffff; -/* 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; + if (initrd_max >= ram_size-ACPI_DATA_SIZE) + initrd_max = ram_size-ACPI_DATA_SIZE-1; - 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); + /* kernel command line */ + pstrcpy(cmdline_addr, 4096, kernel_cmdline); + + if (protocol >= 0x202) { + stl_p(header+0x228, cmdline_addr-phys_ram_base); + } else { + stw_p(header+0x20, 0xA33F); + stw_p(header+0x22, cmdline_addr-real_addr); + } + + /* loader type */ + /* High nybble = B reserved for Qemu; low nybble is revision number. + If this code is substantially changed, you may want to consider + incrementing the revision. */ + if (protocol >= 0x200) + header[0x210] = 0xB0; + + /* heap */ + if (protocol >= 0x201) { + header[0x211] |= 0x80; /* CAN_USE_HEAP */ + stw_p(header+0x224, cmdline_addr-real_addr-0x200); + } + + /* load initrd */ + if (initrd_filename) { + if (protocol < 0x200) { + fprintf(stderr, "qemu: linux kernel too old to load a ram disk\n"); + exit(1); + } + + fi = fopen(initrd_filename, "rb"); + if (!fi) { + fprintf(stderr, "qemu: could not load initial ram disk '%s'\n", + initrd_filename); + exit(1); + } + + initrd_size = get_file_size(fi); + initrd_addr = phys_ram_base + ((initrd_max-initrd_size) & ~4095); + + fprintf(stderr, "qemu: loading initrd (%#x bytes) at %#zx\n", + initrd_size, initrd_addr-phys_ram_base); + + if (fread(initrd_addr, 1, initrd_size, fi) != initrd_size) { + fprintf(stderr, "qemu: read error on initial ram disk '%s'\n", + initrd_filename); + exit(1); + } + fclose(fi); + + stl_p(header+0x218, initrd_addr-phys_ram_base); + stl_p(header+0x21c, initrd_size); + } + + /* store the finalized header and load the rest of the kernel */ + memcpy(real_addr, header, 1024); + + setup_size = header[0x1f1]; + if (setup_size == 0) + setup_size = 4; + + setup_size = (setup_size+1)*512; + kernel_size -= setup_size; /* Size of protected-mode code */ + + if (fread(real_addr+1024, 1, setup_size-1024, f) != setup_size-1024 || + fread(prot_addr, 1, kernel_size, f) != kernel_size) { + fprintf(stderr, "qemu: read error on kernel '%s'\n", + kernel_filename); + exit(1); + } + fclose(f); + + /* generate bootsector to set up the initial register state */ + real_seg = (real_addr-phys_ram_base) >> 4; + seg[0] = seg[2] = seg[3] = seg[4] = seg[4] = real_seg; + seg[1] = real_seg+0x20; /* CS */ + memset(gpr, 0, sizeof gpr); + gpr[4] = cmdline_addr-real_addr-16; /* SP (-16 is paranoia) */ + + generate_bootsect(gpr, seg, 0); } +static void main_cpu_reset(void *opaque) +{ + CPUState *env = opaque; + cpu_reset(env); +} static const int ide_iobase[2] = { 0x1f0, 0x170 }; static const int ide_iobase2[2] = { 0x3f6, 0x376 }; @@ -558,7 +621,7 @@ 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) +static void audio_init (PCIBus *pci_bus, qemu_irq *pic) { struct soundhw *c; int audio_enabled = 0; @@ -575,7 +638,7 @@ static void audio_init (PCIBus *pci_bus) for (c = soundhw; c->name; ++c) { if (c->enabled) { if (c->isa) { - c->init.init_isa (s); + c->init.init_isa (s, pic); } else { if (pci_bus) { @@ -589,13 +652,13 @@ static void audio_init (PCIBus *pci_bus) } #endif -static void pc_init_ne2k_isa(NICInfo *nd) +static void pc_init_ne2k_isa(NICInfo *nd, qemu_irq *pic) { static int nb_ne2k = 0; if (nb_ne2k == NE2000_NB_MAX) return; - isa_ne2000_init(ne2000_io[nb_ne2k], ne2000_irq[nb_ne2k], nd); + isa_ne2000_init(ne2000_io[nb_ne2k], pic[ne2000_irq[nb_ne2k]], nd); nb_ne2k++; } @@ -607,12 +670,15 @@ static void pc_init1(int ram_size, int vga_ram_size, int boot_device, 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; + int ret, linux_boot, i; + ram_addr_t ram_addr, vga_ram_addr, bios_offset, vga_bios_offset; + int bios_size, isa_bios_size, vga_bios_size; PCIBus *pci_bus; + int piix3_devfn = -1; CPUState *env; NICInfo *nd; + qemu_irq *cpu_irq; + qemu_irq *i8259; linux_boot = (kernel_filename != NULL); @@ -625,36 +691,37 @@ static void pc_init1(int ram_size, int vga_ram_size, int boot_device, /* XXX: enable it in all cases */ env->cpuid_features |= CPUID_APIC; } - register_savevm("cpu", i, 3, cpu_save, cpu_load, env); + register_savevm("cpu", i, 4, cpu_save, cpu_load, env); qemu_register_reset(main_cpu_reset, env); if (pci_enabled) { apic_init(env); } + vmport_init(env); } /* allocate RAM */ - cpu_register_physical_memory(0, ram_size, 0); + ram_addr = qemu_ram_alloc(ram_size); + cpu_register_physical_memory(0, ram_size, ram_addr); - /* BIOS load */ - bios_offset = ram_size + vga_ram_size; - vga_bios_offset = bios_offset + 256 * 1024; + /* allocate VGA RAM */ + vga_ram_addr = qemu_ram_alloc(vga_ram_size); - snprintf(buf, sizeof(buf), "%s/%s", bios_dir, BIOS_FILENAME); + /* BIOS load */ + if (bios_name == NULL) + bios_name = BIOS_FILENAME; + snprintf(buf, sizeof(buf), "%s/%s", bios_dir, bios_name); bios_size = get_image_size(buf); - if (bios_size <= 0 || - (bios_size % 65536) != 0 || - bios_size > (256 * 1024)) { + if (bios_size <= 0 || + (bios_size % 65536) != 0) { goto bios_error; } + bios_offset = qemu_ram_alloc(bios_size); 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); + 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) { @@ -662,86 +729,76 @@ static void pc_init1(int ram_size, int vga_ram_size, int boot_device, } else { snprintf(buf, sizeof(buf), "%s/%s", bios_dir, VGABIOS_FILENAME); } + vga_bios_size = get_image_size(buf); + if (vga_bios_size <= 0 || vga_bios_size > 65536) + goto vga_bios_error; + vga_bios_offset = qemu_ram_alloc(65536); + ret = load_image(buf, phys_ram_base + vga_bios_offset); - + if (ret != vga_bios_size) { + vga_bios_error: + fprintf(stderr, "qemu: could not load VGA BIOS '%s'\n", buf); + exit(1); + } + /* setup basic memory access */ - cpu_register_physical_memory(0xc0000, 0x10000, + 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, + cpu_register_physical_memory(0xd0000, (192 * 1024) - isa_bios_size, IO_MEM_UNASSIGNED); - cpu_register_physical_memory(0x100000 - isa_bios_size, - isa_bios_size, + 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]; + { + ram_addr_t option_rom_offset; + int size, offset; - 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); + offset = 0; + for (i = 0; i < nb_option_roms; i++) { + size = get_image_size(option_rom[i]); + if (size < 0) { + fprintf(stderr, "Could not load option rom '%s'\n", + option_rom[i]); exit(1); } + if (size > (0x10000 - offset)) + goto option_rom_error; + option_rom_offset = qemu_ram_alloc(size); + ret = load_image(option_rom[i], phys_ram_base + option_rom_offset); + if (ret != size) { + option_rom_error: + fprintf(stderr, "Too many option ROMS\n"); + exit(1); + } + size = (size + 4095) & ~4095; + cpu_register_physical_memory(0xd0000 + offset, + size, option_rom_offset | IO_MEM_ROM); + offset += size; } - 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); } + /* 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) + load_linux(kernel_filename, initrd_filename, kernel_cmdline); + + cpu_irq = qemu_allocate_irqs(pic_irq_request, first_cpu, 1); + i8259 = i8259_init(cpu_irq[0]); + ferr_irq = i8259[13]; + if (pci_enabled) { - pci_bus = i440fx_init(); - piix3_init(pci_bus); + pci_bus = i440fx_init(&i440fx_state, i8259); + piix3_devfn = piix3_init(pci_bus, -1); } else { pci_bus = NULL; } @@ -753,19 +810,30 @@ static void pc_init1(int ram_size, int vga_ram_size, int boot_device, if (cirrus_vga_enabled) { if (pci_enabled) { - pci_cirrus_vga_init(pci_bus, - ds, phys_ram_base + ram_size, ram_size, - vga_ram_size); + pci_cirrus_vga_init(pci_bus, + ds, phys_ram_base + vga_ram_addr, + vga_ram_addr, vga_ram_size); } else { - isa_cirrus_vga_init(ds, phys_ram_base + ram_size, ram_size, - vga_ram_size); + isa_cirrus_vga_init(ds, phys_ram_base + vga_ram_addr, + vga_ram_addr, vga_ram_size); } + } else if (vmsvga_enabled) { + if (pci_enabled) + pci_vmsvga_init(pci_bus, ds, phys_ram_base + ram_size, + ram_size, vga_ram_size); + else + fprintf(stderr, "%s: vmware_vga: no PCI bus\n", __FUNCTION__); } else { - vga_initialize(pci_bus, ds, phys_ram_base + ram_size, ram_size, - vga_ram_size, 0, 0); + if (pci_enabled) { + pci_vga_init(pci_bus, ds, phys_ram_base + vga_ram_addr, + vga_ram_addr, vga_ram_size, 0, 0); + } else { + isa_vga_init(ds, phys_ram_base + vga_ram_addr, + vga_ram_addr, vga_ram_size); + } } - rtc_state = rtc_init(0x70, 8); + rtc_state = rtc_init(0x70, i8259[8]); register_ioport_read(0x92, 1, 1, ioport92_read, NULL); register_ioport_write(0x92, 1, 1, ioport92_write, NULL); @@ -773,8 +841,7 @@ static void pc_init1(int ram_size, int vga_ram_size, int boot_device, if (pci_enabled) { ioapic = ioapic_init(); } - isa_pic = pic_init(pic_irq_request, first_cpu); - pit = pit_init(0x40, 0); + pit = pit_init(0x40, i8259[0]); pcspk_init(pit); if (pci_enabled) { pic_set_alt_irq_func(isa_pic, ioapic_set_irq, ioapic); @@ -782,14 +849,14 @@ static void pc_init1(int ram_size, int vga_ram_size, int boot_device, 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]); + serial_init(serial_io[i], i8259[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]); + parallel_init(parallel_io[i], i8259[parallel_irq[i]], + parallel_hds[i]); } } @@ -803,9 +870,14 @@ static void pc_init1(int ram_size, int vga_ram_size, int boot_device, } } if (strcmp(nd->model, "ne2k_isa") == 0) { - pc_init_ne2k_isa(nd); + pc_init_ne2k_isa(nd, i8259); } else if (pci_enabled) { - pci_nic_init(pci_bus, nd); + if (strcmp(nd->model, "?") == 0) + fprintf(stderr, "qemu: Supported ISA NICs: ne2k_isa\n"); + pci_nic_init(pci_bus, nd, -1); + } else if (strcmp(nd->model, "?") == 0) { + fprintf(stderr, "qemu: Supported ISA NICs: ne2k_isa\n"); + exit(1); } else { fprintf(stderr, "qemu: Unsupported NIC: %s\n", nd->model); exit(1); @@ -813,42 +885,68 @@ static void pc_init1(int ram_size, int vga_ram_size, int boot_device, } if (pci_enabled) { - pci_piix3_ide_init(pci_bus, bs_table); + pci_piix3_ide_init(pci_bus, bs_table, piix3_devfn + 1, i8259); } else { for(i = 0; i < 2; i++) { - isa_ide_init(ide_iobase[i], ide_iobase2[i], ide_irq[i], + isa_ide_init(ide_iobase[i], ide_iobase2[i], i8259[ide_irq[i]], bs_table[2 * i], bs_table[2 * i + 1]); } } - kbd_init(); + i8042_init(i8259[1], i8259[12], 0x60); DMA_init(0); #ifdef HAS_AUDIO - audio_init(pci_enabled ? pci_bus : NULL); + audio_init(pci_enabled ? pci_bus : NULL, i8259); #endif - floppy_controller = fdctrl_init(6, 2, 0, 0x3f0, fd_table); + floppy_controller = fdctrl_init(i8259[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); + usb_uhci_piix3_init(pci_bus, piix3_devfn + 2); } - /* must be done after all PCI devices are instanciated */ - /* XXX: should be done in the Bochs BIOS */ + if (pci_enabled && acpi_enabled) { + uint8_t *eeprom_buf = qemu_mallocz(8 * 256); /* XXX: make this persistent */ + i2c_bus *smbus; + + /* TODO: Populate SPD eeprom data. */ + smbus = piix4_pm_init(pci_bus, piix3_devfn + 3, 0xb100); + for (i = 0; i < 8; i++) { + smbus_eeprom_device_init(smbus, 0x50 + i, eeprom_buf + (i * 256)); + } + } + + if (i440fx_state) { + i440fx_init_memory_mappings(i440fx_state); + } +#if 0 + /* ??? Need to figure out some way for the user to + specify SCSI devices. */ if (pci_enabled) { - pci_bios_init(); + void *scsi; + BlockDriverState *bdrv; + + scsi = lsi_scsi_init(pci_bus, -1); + bdrv = bdrv_new("scsidisk"); + bdrv_open(bdrv, "scsi_disk.img", 0); + lsi_scsi_attach(scsi, bdrv, -1); + bdrv = bdrv_new("scsicd"); + bdrv_open(bdrv, "scsi_cd.iso", 0); + bdrv_set_type_hint(bdrv, BDRV_TYPE_CDROM); + lsi_scsi_attach(scsi, bdrv, -1); } +#endif } 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, + DisplayState *ds, const char **fd_filename, + int snapshot, + const char *kernel_filename, const char *kernel_cmdline, - const char *initrd_filename) + const char *initrd_filename, + const char *cpu_model) { pc_init1(ram_size, vga_ram_size, boot_device, ds, fd_filename, snapshot, @@ -857,11 +955,12 @@ static void pc_init_pci(int ram_size, int vga_ram_size, int boot_device, } 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, + DisplayState *ds, const char **fd_filename, + int snapshot, + const char *kernel_filename, const char *kernel_cmdline, - const char *initrd_filename) + const char *initrd_filename, + const char *cpu_model) { pc_init1(ram_size, vga_ram_size, boot_device, ds, fd_filename, snapshot,