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-rw-r--r--vl.c840
1 files changed, 754 insertions, 86 deletions
diff --git a/vl.c b/vl.c
index c9196e5348..01378e2587 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;
@@ -1739,20 +1756,625 @@ 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,
void *puc)
@@ -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);
generated by cgit v1.2.3 (git 2.26.2) at 2024-12-25 13:43:28 +0000