diff --git a/block.c b/block.c new file mode 100644 index 0000000000000000000000000000000000000000..1ac8210e01235e3d633543096c2d20efd5f4c61c --- /dev/null +++ b/block.c @@ -0,0 +1,107 @@ +/* + * QEMU System Emulator block driver + * + * Copyright (c) 2003 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 +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include "vl.h" + +struct BlockDriverState { + int fd; + int64_t total_sectors; +}; + +BlockDriverState *bdrv_open(const char *filename) +{ + BlockDriverState *bs; + int fd; + int64_t size; + + bs = malloc(sizeof(BlockDriverState)); + if(!bs) + return NULL; + fd = open(filename, O_RDWR); + if (fd < 0) { + close(fd); + free(bs); + return NULL; + } + size = lseek64(fd, 0, SEEK_END); + bs->total_sectors = size / 512; + bs->fd = fd; + return bs; +} + +void bdrv_close(BlockDriverState *bs) +{ + close(bs->fd); + free(bs); +} + +/* return -1 if error */ +int bdrv_read(BlockDriverState *bs, int64_t sector_num, + uint8_t *buf, int nb_sectors) +{ + int ret; + + lseek64(bs->fd, sector_num * 512, SEEK_SET); + ret = read(bs->fd, buf, nb_sectors * 512); + if (ret != nb_sectors * 512) + return -1; + else + return 0; +} + +/* return -1 if error */ +int bdrv_write(BlockDriverState *bs, int64_t sector_num, + const uint8_t *buf, int nb_sectors) +{ + int ret; + + lseek64(bs->fd, sector_num * 512, SEEK_SET); + ret = write(bs->fd, buf, nb_sectors * 512); + if (ret != nb_sectors * 512) + return -1; + else + return 0; +} + +void bdrv_get_geometry(BlockDriverState *bs, int64_t *nb_sectors_ptr) +{ + *nb_sectors_ptr = bs->total_sectors; +} diff --git a/vl.c b/vl.c index c9196e534829fdcef8097e2a8a77d04ebc0f5f6b..01378e25876f035bec42fda57351b1dd168d04aa 100644 --- a/vl.c +++ b/vl.c @@ -46,6 +46,9 @@ #include "cpu-i386.h" #include "disas.h" +#include "thunk.h" + +#include "vl.h" #define DEBUG_LOGFILE "/tmp/vl.log" #define DEFAULT_NETWORK_SCRIPT "/etc/vl-ifup" @@ -175,17 +178,15 @@ struct __attribute__ ((packed)) linux_params { typedef void (IOPortWriteFunc)(CPUX86State *env, uint32_t address, uint32_t data); typedef uint32_t (IOPortReadFunc)(CPUX86State *env, uint32_t address); -#define MAX_IOPORTS 1024 +#define MAX_IOPORTS 4096 char phys_ram_file[1024]; CPUX86State *global_env; CPUX86State *cpu_single_env; FILE *logfile = NULL; int loglevel; -IOPortReadFunc *ioport_readb_table[MAX_IOPORTS]; -IOPortWriteFunc *ioport_writeb_table[MAX_IOPORTS]; -IOPortReadFunc *ioport_readw_table[MAX_IOPORTS]; -IOPortWriteFunc *ioport_writew_table[MAX_IOPORTS]; +IOPortReadFunc *ioport_read_table[3][MAX_IOPORTS]; +IOPortWriteFunc *ioport_write_table[3][MAX_IOPORTS]; /***********************************************************/ /* x86 io ports */ @@ -195,7 +196,7 @@ uint32_t default_ioport_readb(CPUX86State *env, uint32_t address) #ifdef DEBUG_UNUSED_IOPORT fprintf(stderr, "inb: port=0x%04x\n", address); #endif - return 0; + return 0xff; } void default_ioport_writeb(CPUX86State *env, uint32_t address, uint32_t data) @@ -209,62 +210,79 @@ void default_ioport_writeb(CPUX86State *env, uint32_t address, uint32_t data) uint32_t default_ioport_readw(CPUX86State *env, uint32_t address) { uint32_t data; - data = ioport_readb_table[address](env, address); - data |= ioport_readb_table[address + 1](env, address + 1) << 8; + data = ioport_read_table[0][address](env, address); + data |= ioport_read_table[0][address + 1](env, address + 1) << 8; return data; } void default_ioport_writew(CPUX86State *env, uint32_t address, uint32_t data) { - ioport_writeb_table[address](env, address, data & 0xff); - ioport_writeb_table[address + 1](env, address + 1, (data >> 8) & 0xff); + ioport_write_table[0][address](env, address, data & 0xff); + ioport_write_table[0][address + 1](env, address + 1, (data >> 8) & 0xff); } -void init_ioports(void) +uint32_t default_ioport_readl(CPUX86State *env, uint32_t address) { - int i; - - for(i = 0; i < MAX_IOPORTS; i++) { - ioport_readb_table[i] = default_ioport_readb; - ioport_writeb_table[i] = default_ioport_writeb; - ioport_readw_table[i] = default_ioport_readw; - ioport_writew_table[i] = default_ioport_writew; - } +#ifdef DEBUG_UNUSED_IOPORT + fprintf(stderr, "inl: port=0x%04x\n", address); +#endif + return 0xffffffff; } -int register_ioport_readb(int start, int length, IOPortReadFunc *func) +void default_ioport_writel(CPUX86State *env, uint32_t address, uint32_t data) { - int i; - - for(i = start; i < start + length; i++) - ioport_readb_table[i] = func; - return 0; +#ifdef DEBUG_UNUSED_IOPORT + fprintf(stderr, "outl: port=0x%04x data=0x%02x\n", address, data); +#endif } -int register_ioport_writeb(int start, int length, IOPortWriteFunc *func) +void init_ioports(void) { int i; - for(i = start; i < start + length; i++) - ioport_writeb_table[i] = func; - return 0; + for(i = 0; i < MAX_IOPORTS; i++) { + ioport_read_table[0][i] = default_ioport_readb; + ioport_write_table[0][i] = default_ioport_writeb; + ioport_read_table[1][i] = default_ioport_readw; + ioport_write_table[1][i] = default_ioport_writew; + ioport_read_table[2][i] = default_ioport_readl; + ioport_write_table[2][i] = default_ioport_writel; + } } -int register_ioport_readw(int start, int length, IOPortReadFunc *func) +/* size is the word size in byte */ +int register_ioport_read(int start, int length, IOPortReadFunc *func, int size) { - int i; + int i, bsize; - for(i = start; i < start + length; i += 2) - ioport_readw_table[i] = func; + if (size == 1) + bsize = 0; + else if (size == 2) + bsize = 1; + else if (size == 4) + bsize = 2; + else + return -1; + for(i = start; i < start + length; i += size) + ioport_read_table[bsize][i] = func; return 0; } -int register_ioport_writew(int start, int length, IOPortWriteFunc *func) +/* size is the word size in byte */ +int register_ioport_write(int start, int length, IOPortWriteFunc *func, int size) { - int i; + int i, bsize; - for(i = start; i < start + length; i += 2) - ioport_writew_table[i] = func; + if (size == 1) + bsize = 0; + else if (size == 2) + bsize = 1; + else if (size == 4) + bsize = 2; + else + return -1; + for(i = start; i < start + length; i += size) + ioport_write_table[bsize][i] = func; return 0; } @@ -339,33 +357,32 @@ int load_image(const char *filename, uint8_t *addr) void cpu_x86_outb(CPUX86State *env, int addr, int val) { - ioport_writeb_table[addr & (MAX_IOPORTS - 1)](env, addr, val); + ioport_write_table[0][addr & (MAX_IOPORTS - 1)](env, addr, val); } void cpu_x86_outw(CPUX86State *env, int addr, int val) { - ioport_writew_table[addr & (MAX_IOPORTS - 1)](env, addr, val); + ioport_write_table[1][addr & (MAX_IOPORTS - 1)](env, addr, val); } void cpu_x86_outl(CPUX86State *env, int addr, int val) { - fprintf(stderr, "outl: port=0x%04x, data=%08x\n", addr, val); + ioport_write_table[2][addr & (MAX_IOPORTS - 1)](env, addr, val); } int cpu_x86_inb(CPUX86State *env, int addr) { - return ioport_readb_table[addr & (MAX_IOPORTS - 1)](env, addr); + return ioport_read_table[0][addr & (MAX_IOPORTS - 1)](env, addr); } int cpu_x86_inw(CPUX86State *env, int addr) { - return ioport_readw_table[addr & (MAX_IOPORTS - 1)](env, addr); + return ioport_read_table[1][addr & (MAX_IOPORTS - 1)](env, addr); } int cpu_x86_inl(CPUX86State *env, int addr) { - fprintf(stderr, "inl: port=0x%04x\n", addr); - return 0; + return ioport_read_table[2][addr & (MAX_IOPORTS - 1)](env, addr); } /***********************************************************/ @@ -511,8 +528,8 @@ void cmos_init(void) cmos_data[REG_EQUIPMENT_BYTE] = 0x02; /* FPU is there */ - register_ioport_writeb(0x70, 2, cmos_ioport_write); - register_ioport_readb(0x70, 2, cmos_ioport_read); + register_ioport_write(0x70, 2, cmos_ioport_write, 1); + register_ioport_read(0x70, 2, cmos_ioport_read, 1); } /***********************************************************/ @@ -726,10 +743,10 @@ uint32_t pic_ioport_read(CPUX86State *env, uint32_t addr) void pic_init(void) { - register_ioport_writeb(0x20, 2, pic_ioport_write); - register_ioport_readb(0x20, 2, pic_ioport_read); - register_ioport_writeb(0xa0, 2, pic_ioport_write); - register_ioport_readb(0xa0, 2, pic_ioport_read); + register_ioport_write(0x20, 2, pic_ioport_write, 1); + register_ioport_read(0x20, 2, pic_ioport_read, 1); + register_ioport_write(0xa0, 2, pic_ioport_write, 1); + register_ioport_read(0xa0, 2, pic_ioport_read, 1); } /***********************************************************/ @@ -1031,11 +1048,11 @@ void pit_init(void) pit_load_count(s, 0); } - register_ioport_writeb(0x40, 4, pit_ioport_write); - register_ioport_readb(0x40, 3, pit_ioport_read); + register_ioport_write(0x40, 4, pit_ioport_write, 1); + register_ioport_read(0x40, 3, pit_ioport_read, 1); - register_ioport_readb(0x61, 1, speaker_ioport_read); - register_ioport_writeb(0x61, 1, speaker_ioport_write); + register_ioport_read(0x61, 1, speaker_ioport_read, 1); + register_ioport_write(0x61, 1, speaker_ioport_write, 1); } /***********************************************************/ @@ -1277,8 +1294,8 @@ void serial_init(void) s->lsr = UART_LSR_TEMT | UART_LSR_THRE; - register_ioport_writeb(0x3f8, 8, serial_ioport_write); - register_ioport_readb(0x3f8, 8, serial_ioport_read); + register_ioport_write(0x3f8, 8, serial_ioport_write, 1); + register_ioport_read(0x3f8, 8, serial_ioport_read, 1); term_init(); } @@ -1444,7 +1461,7 @@ int net_init(void) close(fd); return -1; } - printf("connected to host network interface: %s\n", ifr.ifr_name); + printf("Connected to host network interface: %s\n", ifr.ifr_name); fcntl(fd, F_SETFL, O_NONBLOCK); net_fd = fd; @@ -1739,19 +1756,624 @@ uint32_t ne2000_reset_ioport_read(CPUX86State *env, uint32_t addr) void ne2000_init(void) { - register_ioport_writeb(NE2000_IOPORT, 16, ne2000_ioport_write); - register_ioport_readb(NE2000_IOPORT, 16, ne2000_ioport_read); + register_ioport_write(NE2000_IOPORT, 16, ne2000_ioport_write, 1); + register_ioport_read(NE2000_IOPORT, 16, ne2000_ioport_read, 1); - register_ioport_writeb(NE2000_IOPORT + 0x10, 1, ne2000_asic_ioport_write); - register_ioport_readb(NE2000_IOPORT + 0x10, 1, ne2000_asic_ioport_read); - register_ioport_writew(NE2000_IOPORT + 0x10, 2, ne2000_asic_ioport_write); - register_ioport_readw(NE2000_IOPORT + 0x10, 2, ne2000_asic_ioport_read); + register_ioport_write(NE2000_IOPORT + 0x10, 1, ne2000_asic_ioport_write, 1); + register_ioport_read(NE2000_IOPORT + 0x10, 1, ne2000_asic_ioport_read, 1); + register_ioport_write(NE2000_IOPORT + 0x10, 2, ne2000_asic_ioport_write, 2); + register_ioport_read(NE2000_IOPORT + 0x10, 2, ne2000_asic_ioport_read, 2); - register_ioport_writeb(NE2000_IOPORT + 0x1f, 1, ne2000_reset_ioport_write); - register_ioport_readb(NE2000_IOPORT + 0x1f, 1, ne2000_reset_ioport_read); + register_ioport_write(NE2000_IOPORT + 0x1f, 1, ne2000_reset_ioport_write, 1); + register_ioport_read(NE2000_IOPORT + 0x1f, 1, ne2000_reset_ioport_read, 1); ne2000_reset(); } +/***********************************************************/ +/* ide emulation */ + +//#define DEBUG_IDE + +/* Bits of HD_STATUS */ +#define ERR_STAT 0x01 +#define INDEX_STAT 0x02 +#define ECC_STAT 0x04 /* Corrected error */ +#define DRQ_STAT 0x08 +#define SEEK_STAT 0x10 +#define SRV_STAT 0x10 +#define WRERR_STAT 0x20 +#define READY_STAT 0x40 +#define BUSY_STAT 0x80 + +/* Bits for HD_ERROR */ +#define MARK_ERR 0x01 /* Bad address mark */ +#define TRK0_ERR 0x02 /* couldn't find track 0 */ +#define ABRT_ERR 0x04 /* Command aborted */ +#define MCR_ERR 0x08 /* media change request */ +#define ID_ERR 0x10 /* ID field not found */ +#define MC_ERR 0x20 /* media changed */ +#define ECC_ERR 0x40 /* Uncorrectable ECC error */ +#define BBD_ERR 0x80 /* pre-EIDE meaning: block marked bad */ +#define ICRC_ERR 0x80 /* new meaning: CRC error during transfer */ + +/* Bits of HD_NSECTOR */ +#define CD 0x01 +#define IO 0x02 +#define REL 0x04 +#define TAG_MASK 0xf8 + +#define IDE_CMD_RESET 0x04 +#define IDE_CMD_DISABLE_IRQ 0x02 + +/* ATA/ATAPI Commands pre T13 Spec */ +#define WIN_NOP 0x00 +/* + * 0x01->0x02 Reserved + */ +#define CFA_REQ_EXT_ERROR_CODE 0x03 /* CFA Request Extended Error Code */ +/* + * 0x04->0x07 Reserved + */ +#define WIN_SRST 0x08 /* ATAPI soft reset command */ +#define WIN_DEVICE_RESET 0x08 +/* + * 0x09->0x0F Reserved + */ +#define WIN_RECAL 0x10 +#define WIN_RESTORE WIN_RECAL +/* + * 0x10->0x1F Reserved + */ +#define WIN_READ 0x20 /* 28-Bit */ +#define WIN_READ_ONCE 0x21 /* 28-Bit without retries */ +#define WIN_READ_LONG 0x22 /* 28-Bit */ +#define WIN_READ_LONG_ONCE 0x23 /* 28-Bit without retries */ +#define WIN_READ_EXT 0x24 /* 48-Bit */ +#define WIN_READDMA_EXT 0x25 /* 48-Bit */ +#define WIN_READDMA_QUEUED_EXT 0x26 /* 48-Bit */ +#define WIN_READ_NATIVE_MAX_EXT 0x27 /* 48-Bit */ +/* + * 0x28 + */ +#define WIN_MULTREAD_EXT 0x29 /* 48-Bit */ +/* + * 0x2A->0x2F Reserved + */ +#define WIN_WRITE 0x30 /* 28-Bit */ +#define WIN_WRITE_ONCE 0x31 /* 28-Bit without retries */ +#define WIN_WRITE_LONG 0x32 /* 28-Bit */ +#define WIN_WRITE_LONG_ONCE 0x33 /* 28-Bit without retries */ +#define WIN_WRITE_EXT 0x34 /* 48-Bit */ +#define WIN_WRITEDMA_EXT 0x35 /* 48-Bit */ +#define WIN_WRITEDMA_QUEUED_EXT 0x36 /* 48-Bit */ +#define WIN_SET_MAX_EXT 0x37 /* 48-Bit */ +#define CFA_WRITE_SECT_WO_ERASE 0x38 /* CFA Write Sectors without erase */ +#define WIN_MULTWRITE_EXT 0x39 /* 48-Bit */ +/* + * 0x3A->0x3B Reserved + */ +#define WIN_WRITE_VERIFY 0x3C /* 28-Bit */ +/* + * 0x3D->0x3F Reserved + */ +#define WIN_VERIFY 0x40 /* 28-Bit - Read Verify Sectors */ +#define WIN_VERIFY_ONCE 0x41 /* 28-Bit - without retries */ +#define WIN_VERIFY_EXT 0x42 /* 48-Bit */ +/* + * 0x43->0x4F Reserved + */ +#define WIN_FORMAT 0x50 +/* + * 0x51->0x5F Reserved + */ +#define WIN_INIT 0x60 +/* + * 0x61->0x5F Reserved + */ +#define WIN_SEEK 0x70 /* 0x70-0x7F Reserved */ +#define CFA_TRANSLATE_SECTOR 0x87 /* CFA Translate Sector */ +#define WIN_DIAGNOSE 0x90 +#define WIN_SPECIFY 0x91 /* set drive geometry translation */ +#define WIN_DOWNLOAD_MICROCODE 0x92 +#define WIN_STANDBYNOW2 0x94 +#define WIN_STANDBY2 0x96 +#define WIN_SETIDLE2 0x97 +#define WIN_CHECKPOWERMODE2 0x98 +#define WIN_SLEEPNOW2 0x99 +/* + * 0x9A VENDOR + */ +#define WIN_PACKETCMD 0xA0 /* Send a packet command. */ +#define WIN_PIDENTIFY 0xA1 /* identify ATAPI device */ +#define WIN_QUEUED_SERVICE 0xA2 +#define WIN_SMART 0xB0 /* self-monitoring and reporting */ +#define CFA_ERASE_SECTORS 0xC0 +#define WIN_MULTREAD 0xC4 /* read sectors using multiple mode*/ +#define WIN_MULTWRITE 0xC5 /* write sectors using multiple mode */ +#define WIN_SETMULT 0xC6 /* enable/disable multiple mode */ +#define WIN_READDMA_QUEUED 0xC7 /* read sectors using Queued DMA transfers */ +#define WIN_READDMA 0xC8 /* read sectors using DMA transfers */ +#define WIN_READDMA_ONCE 0xC9 /* 28-Bit - without retries */ +#define WIN_WRITEDMA 0xCA /* write sectors using DMA transfers */ +#define WIN_WRITEDMA_ONCE 0xCB /* 28-Bit - without retries */ +#define WIN_WRITEDMA_QUEUED 0xCC /* write sectors using Queued DMA transfers */ +#define CFA_WRITE_MULTI_WO_ERASE 0xCD /* CFA Write multiple without erase */ +#define WIN_GETMEDIASTATUS 0xDA +#define WIN_ACKMEDIACHANGE 0xDB /* ATA-1, ATA-2 vendor */ +#define WIN_POSTBOOT 0xDC +#define WIN_PREBOOT 0xDD +#define WIN_DOORLOCK 0xDE /* lock door on removable drives */ +#define WIN_DOORUNLOCK 0xDF /* unlock door on removable drives */ +#define WIN_STANDBYNOW1 0xE0 +#define WIN_IDLEIMMEDIATE 0xE1 /* force drive to become "ready" */ +#define WIN_STANDBY 0xE2 /* Set device in Standby Mode */ +#define WIN_SETIDLE1 0xE3 +#define WIN_READ_BUFFER 0xE4 /* force read only 1 sector */ +#define WIN_CHECKPOWERMODE1 0xE5 +#define WIN_SLEEPNOW1 0xE6 +#define WIN_FLUSH_CACHE 0xE7 +#define WIN_WRITE_BUFFER 0xE8 /* force write only 1 sector */ +#define WIN_WRITE_SAME 0xE9 /* read ata-2 to use */ + /* SET_FEATURES 0x22 or 0xDD */ +#define WIN_FLUSH_CACHE_EXT 0xEA /* 48-Bit */ +#define WIN_IDENTIFY 0xEC /* ask drive to identify itself */ +#define WIN_MEDIAEJECT 0xED +#define WIN_IDENTIFY_DMA 0xEE /* same as WIN_IDENTIFY, but DMA */ +#define WIN_SETFEATURES 0xEF /* set special drive features */ +#define EXABYTE_ENABLE_NEST 0xF0 +#define WIN_SECURITY_SET_PASS 0xF1 +#define WIN_SECURITY_UNLOCK 0xF2 +#define WIN_SECURITY_ERASE_PREPARE 0xF3 +#define WIN_SECURITY_ERASE_UNIT 0xF4 +#define WIN_SECURITY_FREEZE_LOCK 0xF5 +#define WIN_SECURITY_DISABLE 0xF6 +#define WIN_READ_NATIVE_MAX 0xF8 /* return the native maximum address */ +#define WIN_SET_MAX 0xF9 +#define DISABLE_SEAGATE 0xFB + +#define MAX_MULT_SECTORS 16 + +#define MAX_DISKS 2 + +struct IDEState; + +typedef void EndTransferFunc(struct IDEState *); + +typedef struct IDEState { + /* ide config */ + int cylinders, heads, sectors; + int64_t nb_sectors; + int mult_sectors; + int irq; + /* ide regs */ + uint8_t feature; + uint8_t error; + uint8_t nsector; + uint8_t sector; + uint8_t lcyl; + uint8_t hcyl; + uint8_t select; + uint8_t status; + /* 0x3f6 command, only meaningful for drive 0 */ + uint8_t cmd; + /* depends on bit 4 in select, only meaningful for drive 0 */ + struct IDEState *cur_drive; + BlockDriverState *bs; + EndTransferFunc *end_transfer_func; + uint8_t *data_ptr; + uint8_t *data_end; + uint8_t io_buffer[MAX_MULT_SECTORS*512 + 4]; +} IDEState; + +BlockDriverState *bs_table[MAX_DISKS]; +IDEState ide_state[MAX_DISKS]; + +static void padstr(char *str, const char *src, int len) +{ + int i, v; + for(i = 0; i < len; i++) { + if (*src) + v = *src++; + else + v = ' '; + *(char *)((long)str ^ 1) = v; + str++; + } +} + +static void ide_identify(IDEState *s) +{ + uint16_t *p; + unsigned int oldsize; + + memset(s->io_buffer, 0, 512); + p = (uint16_t *)s->io_buffer; + stw(p + 0, 0x0040); + stw(p + 1, s->cylinders); + stw(p + 3, s->heads); + stw(p + 4, 512 * s->sectors); /* sectors */ + stw(p + 5, 512); /* sector size */ + stw(p + 6, s->sectors); + stw(p + 20, 3); /* buffer type */ + stw(p + 21, 512); /* cache size in sectors */ + stw(p + 22, 4); /* ecc bytes */ + padstr((uint8_t *)(p + 27), "QEMU HARDDISK", 40); + // stw(p + 47, MAX_MULT_SECTORS); + stw(p + 48, 1); /* dword I/O */ + stw(p + 49, 1 << 9); /* LBA supported, no DMA */ + stw(p + 51, 0x200); /* PIO transfer cycle */ + stw(p + 52, 0x200); /* DMA transfer cycle */ + stw(p + 54, s->cylinders); + stw(p + 55, s->heads); + stw(p + 56, s->sectors); + oldsize = s->cylinders * s->heads * s->sectors; + stw(p + 57, oldsize); + stw(p + 58, oldsize >> 16); + if (s->mult_sectors) + stw(p + 59, 0x100 | s->mult_sectors); + stw(p + 60, s->nb_sectors); + stw(p + 61, s->nb_sectors >> 16); + stw(p + 80, (1 << 1) | (1 << 2)); + stw(p + 82, (1 << 14)); + stw(p + 83, (1 << 14)); + stw(p + 84, (1 << 14)); + stw(p + 85, (1 << 14)); + stw(p + 86, 0); + stw(p + 87, (1 << 14)); +} + +static inline void ide_abort_command(IDEState *s) +{ + s->status = READY_STAT | ERR_STAT; + s->error = ABRT_ERR; +} + +static inline void ide_set_irq(IDEState *s) +{ + if (!(ide_state[0].cmd & IDE_CMD_DISABLE_IRQ)) { + pic_set_irq(s->irq, 1); + cpu_x86_interrupt(global_env); + } +} + +/* prepare data transfer and tell what to do after */ +static void ide_transfer_start(IDEState *s, int size, + EndTransferFunc *end_transfer_func) +{ + s->end_transfer_func = end_transfer_func; + s->data_ptr = s->io_buffer; + s->data_end = s->io_buffer + size; + s->status |= DRQ_STAT; +} + +static void ide_transfer_stop(IDEState *s) +{ + s->end_transfer_func = ide_transfer_stop; + s->data_ptr = s->io_buffer; + s->data_end = s->io_buffer; + s->status &= ~DRQ_STAT; +} + +static int64_t ide_get_sector(IDEState *s) +{ + int64_t sector_num; + if (s->select & 0x40) { + /* lba */ + sector_num = ((s->select & 0x0f) << 24) | (s->hcyl << 16) | + (s->lcyl << 8) | s->sector; + } else { + sector_num = ((s->hcyl << 8) | s->lcyl) * s->heads * s->sectors + + (s->select & 0x0f) * s->sectors + + (s->sector - 1); + } + return sector_num; +} + +static void ide_set_sector(IDEState *s, int64_t sector_num) +{ + unsigned int cyl, r; + if (s->select & 0x40) { + s->select = (s->select & 0xf0) | (sector_num >> 24); + s->hcyl = (sector_num >> 16); + s->lcyl = (sector_num >> 8); + s->sector = (sector_num); + } else { + cyl = sector_num / (s->heads * s->sectors); + r = sector_num % (s->heads * s->sectors); + s->hcyl = cyl >> 8; + s->lcyl = cyl; + s->select = (s->select & 0xf0) | (r / s->sectors); + s->sector = (r % s->sectors) + 1; + } +} + +static void ide_sector_read(IDEState *s) +{ + int64_t sector_num; + int ret; + + s->status = READY_STAT | SEEK_STAT; + sector_num = ide_get_sector(s); + s->nsector--; + if (s->nsector == 0xff) { + /* no more sector to read from disk */ + ide_transfer_stop(s); + } else { +#if defined(DEBUG_IDE) + printf("read sector=%Ld\n", sector_num); +#endif + ret = bdrv_read(s->bs, sector_num, s->io_buffer, 1); + ide_transfer_start(s, 512, ide_sector_read); + ide_set_irq(s); + } + ide_set_sector(s, sector_num + 1); +} + +static void ide_sector_write(IDEState *s) +{ + int64_t sector_num; + int ret; + + s->status = READY_STAT | SEEK_STAT; + sector_num = ide_get_sector(s); +#if defined(DEBUG_IDE) + printf("write sector=%Ld\n", sector_num); +#endif + ret = bdrv_write(s->bs, sector_num, s->io_buffer, 1); + s->nsector--; + if (s->nsector == 0) { + /* no more sector to write */ + ide_transfer_stop(s); + } else { + ide_transfer_start(s, 512, ide_sector_write); + } + ide_set_sector(s, sector_num + 1); + ide_set_irq(s); +} + +void ide_ioport_write(CPUX86State *env, uint32_t addr, uint32_t val) +{ + IDEState *s = ide_state[0].cur_drive; + int unit; + + addr &= 7; +#ifdef DEBUG_IDE + printf("IDE: write addr=0x%x val=0x%02x\n", addr, val); +#endif + switch(addr) { + case 0: + break; + case 1: + s->feature = val; + break; + case 2: + s->nsector = val; + break; + case 3: + s->sector = val; + break; + case 4: + s->lcyl = val; + break; + case 5: + s->hcyl = val; + break; + case 6: + /* select drive */ + unit = (val >> 4) & 1; + s = &ide_state[unit]; + ide_state[0].cur_drive = s; + s->select = val; + break; + default: + case 7: + /* command */ +#if defined(DEBUG_IDE) + printf("ide: CMD=%02x\n", val); +#endif + switch(val) { + case WIN_PIDENTIFY: + case WIN_IDENTIFY: + if (s->bs) { + ide_identify(s); + s->status = READY_STAT; + ide_transfer_start(s, 512, ide_transfer_stop); + } else { + ide_abort_command(s); + } + ide_set_irq(s); + break; + case WIN_SPECIFY: + case WIN_RECAL: + s->status = READY_STAT; + ide_set_irq(s); + break; + case WIN_SETMULT: + if (s->nsector > MAX_MULT_SECTORS || + s->nsector == 0 || + (s->nsector & (s->nsector - 1)) != 0) { + ide_abort_command(s); + } else { + s->mult_sectors = s->nsector; + s->status = READY_STAT; + } + ide_set_irq(s); + break; + case WIN_READ: + case WIN_READ_ONCE: + ide_sector_read(s); + break; + case WIN_WRITE: + case WIN_WRITE_ONCE: + s->status = SEEK_STAT; + ide_transfer_start(s, 512, ide_sector_write); + break; + default: + ide_abort_command(s); + ide_set_irq(s); + break; + } + } +} + +uint32_t ide_ioport_read(CPUX86State *env, uint32_t addr) +{ + IDEState *s = ide_state[0].cur_drive; + int ret; + + addr &= 7; + switch(addr) { + case 0: + ret = 0xff; + break; + case 1: + ret = s->error; + break; + case 2: + ret = s->nsector; + break; + case 3: + ret = s->sector; + break; + case 4: + ret = s->lcyl; + break; + case 5: + ret = s->hcyl; + break; + case 6: + ret = s->select; + break; + default: + case 7: + ret = s->status; + pic_set_irq(s->irq, 0); + break; + } +#ifdef DEBUG_IDE + printf("ide: read addr=0x%x val=%02x\n", addr, ret); +#endif + return ret; +} + +uint32_t ide_status_read(CPUX86State *env, uint32_t addr) +{ + IDEState *s = ide_state[0].cur_drive; + int ret; + ret = s->status; +#ifdef DEBUG_IDE + printf("ide: read addr=0x%x val=%02x\n", addr, ret); +#endif + return ret; +} + +void ide_cmd_write(CPUX86State *env, uint32_t addr, uint32_t val) +{ + IDEState *s = &ide_state[0]; + /* common for both drives */ + s->cmd = val; +} + +void ide_data_writew(CPUX86State *env, uint32_t addr, uint32_t val) +{ + IDEState *s = ide_state[0].cur_drive; + uint8_t *p; + + p = s->data_ptr; + *(uint16_t *)p = tswap16(val); + p += 2; + s->data_ptr = p; + if (p >= s->data_end) + s->end_transfer_func(s); +} + +uint32_t ide_data_readw(CPUX86State *env, uint32_t addr) +{ + IDEState *s = ide_state[0].cur_drive; + uint8_t *p; + int ret; + + p = s->data_ptr; + ret = tswap16(*(uint16_t *)p); + p += 2; + s->data_ptr = p; + if (p >= s->data_end) + s->end_transfer_func(s); + return ret; +} + +void ide_data_writel(CPUX86State *env, uint32_t addr, uint32_t val) +{ + IDEState *s = ide_state[0].cur_drive; + uint8_t *p; + + p = s->data_ptr; + *(uint32_t *)p = tswap32(val); + p += 4; + s->data_ptr = p; + if (p >= s->data_end) + s->end_transfer_func(s); +} + +uint32_t ide_data_readl(CPUX86State *env, uint32_t addr) +{ + IDEState *s = ide_state[0].cur_drive; + uint8_t *p; + int ret; + + p = s->data_ptr; + ret = tswap32(*(uint32_t *)p); + p += 4; + s->data_ptr = p; + if (p >= s->data_end) + s->end_transfer_func(s); + return ret; +} + +void ide_reset(IDEState *s) +{ + s->mult_sectors = MAX_MULT_SECTORS; + s->status = READY_STAT; + s->cur_drive = s; + s->select = 0xa0; +} + +void ide_init(void) +{ + IDEState *s; + int i, cylinders; + int64_t nb_sectors; + + for(i = 0; i < MAX_DISKS; i++) { + s = &ide_state[i]; + s->bs = bs_table[i]; + if (s->bs) { + bdrv_get_geometry(s->bs, &nb_sectors); + cylinders = nb_sectors / (16 * 63); + if (cylinders > 16383) + cylinders = 16383; + else if (cylinders < 2) + cylinders = 2; + s->cylinders = cylinders; + s->heads = 16; + s->sectors = 63; + s->nb_sectors = nb_sectors; + } + s->irq = 14; + ide_reset(s); + } + register_ioport_write(0x1f0, 8, ide_ioport_write, 1); + register_ioport_read(0x1f0, 8, ide_ioport_read, 1); + register_ioport_read(0x3f6, 1, ide_status_read, 1); + register_ioport_write(0x3f6, 1, ide_cmd_write, 1); + + /* data ports */ + register_ioport_write(0x1f0, 2, ide_data_writew, 2); + register_ioport_read(0x1f0, 2, ide_data_readw, 2); + register_ioport_write(0x1f0, 4, ide_data_writel, 4); + register_ioport_read(0x1f0, 4, ide_data_readl, 4); +} + /***********************************************************/ /* cpu signal handler */ static void host_segv_handler(int host_signum, siginfo_t *info, @@ -1873,16 +2495,22 @@ void main_loop(void *opaque) void help(void) { printf("Virtual Linux version " QEMU_VERSION ", Copyright (c) 2003 Fabrice Bellard\n" - "usage: vl [options] bzImage initrd [kernel parameters...]\n" + "usage: vl [options] bzImage [kernel parameters...]\n" "\n" "'bzImage' is a Linux kernel image (PAGE_OFFSET must be defined\n" "to 0x90000000 in asm/page.h and arch/i386/vmlinux.lds)\n" - "'initrd' is an initrd image\n" - "-m megs set virtual RAM size to megs MB\n" - "-n script set network init script [default=%s]\n" - "-s wait gdb connection to port %d\n" - "-p port change gdb connection port\n" - "-d output log in /tmp/vl.log\n" + "\n" + "General options:\n" + "-initrd file use 'file' as initial ram disk\n" + "-hda file use 'file' as hard disk 0 image\n" + "-hdb file use 'file' as hard disk 1 image\n" + "-m megs set virtual RAM size to megs MB\n" + "-n script set network init script [default=%s]\n" + "\n" + "Debug options:\n" + "-s wait gdb connection to port %d\n" + "-p port change gdb connection port\n" + "-d output log in /tmp/vl.log\n" "\n" "During emulation, use C-a h to get terminal commands:\n", DEFAULT_NETWORK_SCRIPT, DEFAULT_GDBSTUB_PORT); @@ -1890,27 +2518,50 @@ void help(void) exit(1); } +struct option long_options[] = { + { "initrd", 1, NULL, 0, }, + { "hda", 1, NULL, 0, }, + { "hdb", 1, NULL, 0, }, + { NULL, 0, NULL, 0 }, +}; + int main(int argc, char **argv) { - int c, ret, initrd_size, i, use_gdbstub, gdbstub_port; + int c, ret, initrd_size, i, use_gdbstub, gdbstub_port, long_index; struct linux_params *params; struct sigaction act; struct itimerval itv; CPUX86State *env; - const char *tmpdir; + const char *tmpdir, *initrd_filename; + const char *hd_filename[MAX_DISKS]; /* we never want that malloc() uses mmap() */ mallopt(M_MMAP_THRESHOLD, 4096 * 1024); - + initrd_filename = NULL; + for(i = 0; i < MAX_DISKS; i++) + hd_filename[i] = NULL; phys_ram_size = 32 * 1024 * 1024; pstrcpy(network_script, sizeof(network_script), DEFAULT_NETWORK_SCRIPT); use_gdbstub = 0; gdbstub_port = DEFAULT_GDBSTUB_PORT; for(;;) { - c = getopt(argc, argv, "hm:dn:sp:"); + c = getopt_long_only(argc, argv, "hm:dn:sp:", long_options, &long_index); if (c == -1) break; switch(c) { + case 0: + switch(long_index) { + case 0: + initrd_filename = optarg; + break; + case 1: + hd_filename[0] = optarg; + break; + case 2: + hd_filename[1] = optarg; + break; + } + break; case 'h': help(); break; @@ -1933,7 +2584,7 @@ int main(int argc, char **argv) break; } } - if (optind + 1 >= argc) + if (optind >= argc) help(); /* init debug */ @@ -1946,6 +2597,18 @@ int main(int argc, char **argv) setvbuf(logfile, NULL, _IOLBF, 0); } + /* open the virtual block devices */ + for(i = 0; i < MAX_DISKS; i++) { + if (hd_filename[i]) { + bs_table[i] = bdrv_open(hd_filename[i]); + if (!bs_table[i]) { + fprintf(stderr, "vl: could not open hard disk image '%s\n", + hd_filename[i]); + exit(1); + } + } + } + /* init network tun interface */ net_init(); @@ -1978,15 +2641,19 @@ int main(int argc, char **argv) /* now we can load the kernel */ ret = load_kernel(argv[optind], phys_ram_base + KERNEL_LOAD_ADDR); if (ret < 0) { - fprintf(stderr, "%s: could not load kernel\n", argv[optind]); + fprintf(stderr, "vl: could not load kernel '%s'\n", argv[optind]); exit(1); } /* load initrd */ - initrd_size = load_image(argv[optind + 1], phys_ram_base + INITRD_LOAD_ADDR); - if (initrd_size < 0) { - fprintf(stderr, "%s: could not load initrd\n", argv[optind + 1]); - exit(1); + initrd_size = 0; + if (initrd_filename) { + initrd_size = load_image(initrd_filename, phys_ram_base + INITRD_LOAD_ADDR); + if (initrd_size < 0) { + fprintf(stderr, "vl: could not load initial ram disk '%s'\n", + initrd_filename); + exit(1); + } } /* init kernel params */ @@ -1996,8 +2663,8 @@ int main(int argc, char **argv) params->cl_magic = 0xA33F; params->cl_offset = params->commandline - (uint8_t *)params; params->ext_mem_k = (phys_ram_size / 1024) - 1024; - for(i = optind + 2; i < argc; i++) { - if (i != optind + 2) + for(i = optind + 1; i < argc; i++) { + if (i != optind + 1) pstrcat(params->commandline, sizeof(params->commandline), " "); pstrcat(params->commandline, sizeof(params->commandline), argv[i]); } @@ -2011,15 +2678,16 @@ int main(int argc, char **argv) /* init basic PC hardware */ init_ioports(); - register_ioport_writeb(0x80, 1, ioport80_write); + register_ioport_write(0x80, 1, ioport80_write, 1); - register_ioport_writeb(0x3d4, 2, vga_ioport_write); + register_ioport_write(0x3d4, 2, vga_ioport_write, 1); cmos_init(); pic_init(); pit_init(); serial_init(); ne2000_init(); + ide_init(); /* setup cpu signal handlers for MMU / self modifying code handling */ sigfillset(&act.sa_mask); diff --git a/vl.h b/vl.h new file mode 100644 index 0000000000000000000000000000000000000000..87b569d0f67a76263faa9ae1c094bf0d9ec2a44e --- /dev/null +++ b/vl.h @@ -0,0 +1,39 @@ +/* + * QEMU System Emulator header + * + * Copyright (c) 2003 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. + */ +#ifndef VL_H +#define VL_H + +/* block.c */ +typedef struct BlockDriverState BlockDriverState; + +BlockDriverState *bdrv_open(const char *filename); +void bdrv_close(BlockDriverState *bs); +int bdrv_read(BlockDriverState *bs, int64_t sector_num, + uint8_t *buf, int nb_sectors); +int bdrv_write(BlockDriverState *bs, int64_t sector_num, + const uint8_t *buf, int nb_sectors); +void bdrv_get_geometry(BlockDriverState *bs, int64_t *nb_sectors_ptr); + + +#endif /* VL_H */