X-Git-Url: https://vcs.maemo.org/git/?a=blobdiff_plain;f=hw%2Fpc.c;h=5deb445a3c60c7f87b89c2f75a91a0814a1d0c41;hb=6508fe59e07b263a8f9afd0f5f13e6240651f42c;hp=1139781a0cc3ac398204a5159b0945d04c10c27e;hpb=69b910399a3c40620a5213adaeb14a37366d97ac;p=qemu diff --git a/hw/pc.c b/hw/pc.c index 1139781..5deb445 100644 --- a/hw/pc.c +++ b/hw/pc.c @@ -28,6 +28,7 @@ #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 @@ -57,6 +58,13 @@ 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); +} + /* PC cmos mappings */ #define REG_EQUIPMENT_BYTE 0x14 @@ -69,17 +77,63 @@ static inline int to_bcd(RTCState *s, int a) return ((a / 10) << 4) | (a % 10); } -static void cmos_init(int ram_size, int boot_device) +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); - tm = gmtime(&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); @@ -101,7 +155,10 @@ static void cmos_init(int ram_size, int boot_device) rtc_set_memory(s, 0x30, val); rtc_set_memory(s, 0x31, val >> 8); - val = (ram_size / 65536) - ((16 * 1024 * 1024) / 65536); + 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); @@ -126,35 +183,7 @@ static void cmos_init(int ram_size, int boot_device) fd0 = fdctrl_get_drive_type(floppy_controller, 0); fd1 = fdctrl_get_drive_type(floppy_controller, 1); - val = 0; - switch (fd0) { - case 0: - /* 1.44 Mb 3"5 drive */ - val |= 0x40; - break; - case 1: - /* 2.88 Mb 3"5 drive */ - val |= 0x60; - break; - case 2: - /* 1.2 Mb 5"5 drive */ - val |= 0x20; - break; - } - switch (fd1) { - case 0: - /* 1.44 Mb 3"5 drive */ - val |= 0x04; - break; - case 1: - /* 2.88 Mb 3"5 drive */ - val |= 0x06; - break; - case 2: - /* 1.2 Mb 5"5 drive */ - val |= 0x02; - break; - } + val = (cmos_get_fd_drive_type(fd0) << 4) | cmos_get_fd_drive_type(fd1); rtc_set_memory(s, 0x10, val); val = 0; @@ -177,6 +206,43 @@ static void cmos_init(int ram_size, int boot_device) 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); } static void speaker_ioport_write(void *opaque, uint32_t addr, uint32_t val) @@ -210,6 +276,9 @@ static uint32_t ioport92_read(void *opaque, uint32_t addr) 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: @@ -222,6 +291,18 @@ void bochs_bios_write(void *opaque, uint32_t addr, uint32_t val) 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: @@ -243,6 +324,7 @@ void bochs_bios_init(void) 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); @@ -257,7 +339,7 @@ int load_kernel(const char *filename, uint8_t *addr, int fd, size; int setup_sects; - fd = open(filename, O_RDONLY); + fd = open(filename, O_RDONLY | O_BINARY); if (fd < 0) return -1; @@ -288,9 +370,15 @@ static const int ide_irq[2] = { 14, 15 }; #define NE2000_NB_MAX 6 -static uint32_t ne2000_io[NE2000_NB_MAX] = { 0x300, 0x320, 0x340, 0x360, 0x280, 0x380 }; +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 }; + /* PC hardware initialisation */ void pc_init(int ram_size, int vga_ram_size, int boot_device, DisplayState *ds, const char **fd_filename, int snapshot, @@ -298,29 +386,58 @@ void pc_init(int ram_size, int vga_ram_size, int boot_device, const char *initrd_filename) { char buf[1024]; - int ret, linux_boot, initrd_size, i, nb_nics1, fd; - + int ret, linux_boot, initrd_size, i, nb_nics1; + unsigned long bios_offset, vga_bios_offset; + int bios_size, isa_bios_size; + PCIBus *pci_bus; + linux_boot = (kernel_filename != NULL); /* 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); - ret = load_image(buf, phys_ram_base + 0x000f0000); - if (ret != 0x10000) { + 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); } - + /* VGA BIOS load */ - snprintf(buf, sizeof(buf), "%s/%s", bios_dir, VGABIOS_FILENAME); - ret = load_image(buf, phys_ram_base + 0x000c0000); + 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, 0xc0000 | IO_MEM_ROM); - cpu_register_physical_memory(0xd0000, 0x20000, IO_MEM_UNASSIGNED); - cpu_register_physical_memory(0xf0000, 0x10000, 0xf0000 | IO_MEM_ROM); + 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(); @@ -381,8 +498,10 @@ void pc_init(int ram_size, int vga_ram_size, int boot_device, } if (pci_enabled) { - i440fx_init(); - piix3_init(); + pci_bus = i440fx_init(); + piix3_init(pci_bus); + } else { + pci_bus = NULL; } /* init basic PC hardware */ @@ -390,8 +509,19 @@ void pc_init(int ram_size, int vga_ram_size, int boot_device, register_ioport_write(0xf0, 1, 1, ioportF0_write, NULL); - vga_initialize(ds, phys_ram_base + ram_size, ram_size, - vga_ram_size); + 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); + } rtc_state = rtc_init(0x70, 8); register_ioport_read(0x61, 1, 1, speaker_ioport_read, NULL); @@ -400,17 +530,28 @@ void pc_init(int ram_size, int vga_ram_size, int boot_device, register_ioport_read(0x92, 1, 1, ioport92_read, NULL); register_ioport_write(0x92, 1, 1, ioport92_write, NULL); + if (pci_enabled) + apic_init(cpu_single_env); pic_init(); pit = pit_init(0x40, 0); - fd = serial_open_device(); - serial_init(0x3f8, 4, fd); + for(i = 0; i < MAX_SERIAL_PORTS; i++) { + if (serial_hds[i]) { + serial_init(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]); + } + } if (pci_enabled) { for(i = 0; i < nb_nics; i++) { - pci_ne2000_init(&nd_table[i]); + pci_ne2000_init(pci_bus, &nd_table[i]); } - pci_ide_init(bs_table); + pci_piix3_ide_init(pci_bus, bs_table); } else { nb_nics1 = nb_nics; if (nb_nics1 > NE2000_NB_MAX) @@ -426,19 +567,27 @@ void pc_init(int ram_size, int vga_ram_size, int boot_device, } kbd_init(); - DMA_init(); + DMA_init(0); -#ifndef _WIN32 if (audio_enabled) { - /* no audio supported yet for win32 */ AUD_init(); - SB16_init(); - } +#ifdef USE_SB16 + if (sb16_enabled) + SB16_init (); +#endif +#ifdef CONFIG_ADLIB + if (adlib_enabled) + Adlib_init (); #endif +#ifdef USE_GUS + if (gus_enabled) + GUS_init (); +#endif + } floppy_controller = fdctrl_init(6, 2, 0, 0x3f0, fd_table); - cmos_init(ram_size, boot_device); + cmos_init(ram_size, boot_device, bs_table); /* must be done after all PCI devices are instanciated */ /* XXX: should be done in the Bochs BIOS */