/*

 * QEMU System Emulator

 *

 * Copyright (c) 2003-2008 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 "hw/hw.h"

#include "hw/boards.h"

#include "hw/usb.h"

#include "hw/pcmcia.h"

#include "hw/pc.h"

#include "hw/audiodev.h"

#include "hw/isa.h"

#include "hw/baum.h"

#include "hw/bt.h"

#include "net.h"

#include "console.h"

#include "sysemu.h"

#include "gui_host.h"

#include "gdbstub.h"

#include "qemu-timer.h"

#include "qemu-char.h"

#include "cache-utils.h"

#include "block.h"

#include "audio/audio.h"

#include "migration.h"

#include "kvm.h"

#include "balloon.h"

#include <unistd.h>

#include <fcntl.h>

#include <signal.h>

#include <time.h>

#include <errno.h>

#include <sys/time.h>

#include <zlib.h>

#ifndef _WIN32

#include <sys/times.h>

#include <sys/wait.h>

#include <termios.h>

#include <sys/mman.h>

#include <sys/ioctl.h>

#include <sys/resource.h>

#include <sys/socket.h>

#include <netinet/in.h>

#include <net/if.h>

#if defined(__NetBSD__)

#include <net/if_tap.h>

#endif

#ifdef __linux__

#include <linux/if_tun.h>

#endif

#include <arpa/inet.h>

#include <dirent.h>

#include <netdb.h>

#include <sys/select.h>

#ifdef _BSD

#include <sys/stat.h>

#ifdef __FreeBSD__

#include <libutil.h>

#else

#include <util.h>

#endif

#elif defined (__GLIBC__) && defined (__FreeBSD_kernel__)

#include <freebsd/stdlib.h>

#else

#ifdef __linux__

#include <pty.h>

#include <malloc.h>

#include <linux/rtc.h>

/* For the benefit of older linux systems which don't supply it,

   we use a local copy of hpet.h. */

/* #include <linux/hpet.h> */

#include "hpet.h"

#include <linux/ppdev.h>

#include <linux/parport.h>

#endif

#ifdef __sun__

#include <sys/stat.h>

#include <sys/ethernet.h>

#include <sys/sockio.h>

#include <netinet/arp.h>

#include <netinet/in.h>

#include <netinet/in_systm.h>

#include <netinet/ip.h>

#include <netinet/ip_icmp.h> // must come after ip.h

#include <netinet/udp.h>

#include <netinet/tcp.h>

#include <net/if.h>

#include <syslog.h>

#include <stropts.h>

#endif

#endif

#endif

#include "qemu_socket.h"

#if defined(CONFIG_SLIRP)

#include "libslirp.h"

#endif

#if defined(__OpenBSD__)

#include <util.h>

#endif

#if defined(CONFIG_VDE)

#include <libvdeplug.h>

#endif

#ifdef _WIN32

#include <malloc.h>

#include <sys/timeb.h>

#include <mmsystem.h>

#define getopt_long_only getopt_long

#define memalign(align, size) malloc(size)

#endif

#ifdef CONFIG_SDL

#ifdef __APPLE__

#include <SDL/SDL.h>

#endif

#endif /* CONFIG_SDL */

#ifdef CONFIG_COCOA

#undef main

#define main qemu_main

#endif /* CONFIG_COCOA */

#include "disas.h"

#include "exec-all.h"

//#define DEBUG_UNUSED_IOPORT

//#define DEBUG_IOPORT

//#define DEBUG_NET

//#define DEBUG_SLIRP

#ifdef TARGET_PPC

#define DEFAULT_RAM_SIZE 144

#else

#define DEFAULT_RAM_SIZE 128

#endif

/* Max number of USB devices that can be specified on the commandline.  */

#define MAX_USB_CMDLINE 8

/* Max number of bluetooth switches on the commandline.  */

#define MAX_BT_CMDLINE 10

/* XXX: use a two level table to limit memory usage */

#define MAX_IOPORTS 65536

const char *bios_dir = NULL;

const char *bios_name = NULL;

const char *gui_file = NULL;

static void *ioport_opaque[MAX_IOPORTS];

static IOPortReadFunc *ioport_read_table[3][MAX_IOPORTS];

static IOPortWriteFunc *ioport_write_table[3][MAX_IOPORTS];

/* Note: drives_table[MAX_DRIVES] is a dummy block driver if none available

   to store the VM snapshots */

DriveInfo drives_table[MAX_DRIVES+1];

int nb_drives;

static int vga_ram_size;

enum vga_retrace_method vga_retrace_method = VGA_RETRACE_DUMB;

int nographic;

static int curses;

const char* keyboard_layout = NULL;

int64_t ticks_per_sec;

ram_addr_t ram_size;

int nb_nics;

NICInfo nd_table[MAX_NICS];

int vm_running;

static int rtc_utc = 1;

static int rtc_date_offset = -1; /* -1 means no change */

int cirrus_vga_enabled = 1;

int vmsvga_enabled = 0;

#ifdef TARGET_SPARC

int graphic_width = 1024;

int graphic_height = 768;

int graphic_depth = 8;

#else

int graphic_width = 800;

int graphic_height = 600;

int graphic_depth = 15;

#endif

static int full_screen = 0;

#ifdef CONFIG_SDL

static int no_frame = 0;

#endif

int no_quit = 0;

CharDriverState *serial_hds[MAX_SERIAL_PORTS];

CharDriverState *parallel_hds[MAX_PARALLEL_PORTS];

#ifdef TARGET_I386

int win2k_install_hack = 0;

#endif

int usb_enabled = 0;

int smp_cpus = 1;

const char *vnc_display;

int acpi_enabled = 1;

int no_hpet = 0;

int fd_bootchk = 1;

int no_reboot = 0;

int no_shutdown = 0;

int cursor_hide = 1;

int graphic_rotate = 0;

int daemonize = 0;

const char *option_rom[MAX_OPTION_ROMS];

int nb_option_roms;

int semihosting_enabled = 0;

#ifdef TARGET_ARM

int old_param = 0;

#endif

const char *qemu_name;

int alt_grab = 0;

#ifdef TARGET_SPARC

unsigned int nb_prom_envs = 0;

const char *prom_envs[MAX_PROM_ENVS];

#endif

static int nb_drives_opt;

static struct drive_opt {

    const char *file;

    char opt[1024];

} drives_opt[MAX_DRIVES];

static CPUState *cur_cpu;

static CPUState *next_cpu;

static int event_pending = 1;

/* Conversion factor from emulated instructions to virtual clock ticks.  */

static int icount_time_shift;

/* Arbitrarily pick 1MIPS as the minimum allowable speed.  */

#define MAX_ICOUNT_SHIFT 10

/* Compensate for varying guest execution speed.  */

static int64_t qemu_icount_bias;

static QEMUTimer *icount_rt_timer;

static QEMUTimer *icount_vm_timer;

uint8_t qemu_uuid[16];

/***********************************************************/

/* x86 ISA bus support */

target_phys_addr_t isa_mem_base = 0;

PicState2 *isa_pic;

static IOPortReadFunc default_ioport_readb, default_ioport_readw, default_ioport_readl;

static IOPortWriteFunc default_ioport_writeb, default_ioport_writew, default_ioport_writel;

static uint32_t ioport_read(int index, uint32_t address)

{

    static IOPortReadFunc *default_func[3] = {

        default_ioport_readb,

        default_ioport_readw,

        default_ioport_readl

    };

    IOPortReadFunc *func = ioport_read_table[index][address];

    if (!func)

        func = default_func[index];

    return func(ioport_opaque[address], address);

}

static void ioport_write(int index, uint32_t address, uint32_t data)

{

    static IOPortWriteFunc *default_func[3] = {

        default_ioport_writeb,

        default_ioport_writew,

        default_ioport_writel

    };

    IOPortWriteFunc *func = ioport_write_table[index][address];

    if (!func)

        func = default_func[index];

    func(ioport_opaque[address], address, data);

}

static uint32_t default_ioport_readb(void *opaque, uint32_t address)

{

#ifdef DEBUG_UNUSED_IOPORT

    fprintf(stderr, "unused inb: port=0x%04x\n", address);

#endif

    return 0xff;

}

static void default_ioport_writeb(void *opaque, uint32_t address, uint32_t data)

{

#ifdef DEBUG_UNUSED_IOPORT

    fprintf(stderr, "unused outb: port=0x%04x data=0x%02x\n", address, data);

#endif

}

/* default is to make two byte accesses */

static uint32_t default_ioport_readw(void *opaque, uint32_t address)

{

    uint32_t data;

    data = ioport_read(0, address);

    address = (address + 1) & (MAX_IOPORTS - 1);

    data |= ioport_read(0, address) << 8;

    return data;

}

static void default_ioport_writew(void *opaque, uint32_t address, uint32_t data)

{

    ioport_write(0, address, data & 0xff);

    address = (address + 1) & (MAX_IOPORTS - 1);

    ioport_write(0, address, (data >> 8) & 0xff);

}

static uint32_t default_ioport_readl(void *opaque, uint32_t address)

{

#ifdef DEBUG_UNUSED_IOPORT

    fprintf(stderr, "unused inl: port=0x%04x\n", address);

#endif

    return 0xffffffff;

}

static void default_ioport_writel(void *opaque, uint32_t address, uint32_t data)

{

#ifdef DEBUG_UNUSED_IOPORT

    fprintf(stderr, "unused outl: port=0x%04x data=0x%02x\n", address, data);

#endif

}

/* size is the word size in byte */

int register_ioport_read(int start, int length, int size,

                         IOPortReadFunc *func, void *opaque)

{

    int i, bsize;

    if (size == 1) {

        bsize = 0;

    } else if (size == 2) {

        bsize = 1;

    } else if (size == 4) {

        bsize = 2;

    } else {

        hw_error("register_ioport_read: invalid size");

        return -1;

    }

    for(i = start; i < start + length; i += size) {

        ioport_read_table[bsize][i] = func;

        if (ioport_opaque[i] != NULL && ioport_opaque[i] != opaque)

            hw_error("register_ioport_read: invalid opaque");

        ioport_opaque[i] = opaque;

    }

    return 0;

}

/* size is the word size in byte */

int register_ioport_write(int start, int length, int size,

                          IOPortWriteFunc *func, void *opaque)

{

    int i, bsize;

    if (size == 1) {

        bsize = 0;

    } else if (size == 2) {

        bsize = 1;

    } else if (size == 4) {

        bsize = 2;

    } else {

        hw_error("register_ioport_write: invalid size");

        return -1;

    }

    for(i = start; i < start + length; i += size) {

        ioport_write_table[bsize][i] = func;

        if (ioport_opaque[i] != NULL && ioport_opaque[i] != opaque)

            hw_error("register_ioport_write: invalid opaque");

        ioport_opaque[i] = opaque;

    }

    return 0;

}

void isa_unassign_ioport(int start, int length)

{

    int i;

    for(i = start; i < start + length; i++) {

        ioport_read_table[0][i] = default_ioport_readb;

        ioport_read_table[1][i] = default_ioport_readw;

        ioport_read_table[2][i] = default_ioport_readl;

        ioport_write_table[0][i] = default_ioport_writeb;

        ioport_write_table[1][i] = default_ioport_writew;

        ioport_write_table[2][i] = default_ioport_writel;

    }

}

/***********************************************************/

void cpu_outb(CPUState *env, int addr, int val)

{

#ifdef DEBUG_IOPORT

    if (loglevel & CPU_LOG_IOPORT)

        fprintf(logfile, "outb: %04x %02x\n", addr, val);

#endif

    ioport_write(0, addr, val);

#ifdef USE_KQEMU

    if (env)

        env->last_io_time = cpu_get_time_fast();

#endif

}

void cpu_outw(CPUState *env, int addr, int val)

{

#ifdef DEBUG_IOPORT

    if (loglevel & CPU_LOG_IOPORT)

        fprintf(logfile, "outw: %04x %04x\n", addr, val);

#endif

    ioport_write(1, addr, val);

#ifdef USE_KQEMU

    if (env)

        env->last_io_time = cpu_get_time_fast();

#endif

}

void cpu_outl(CPUState *env, int addr, int val)

{

#ifdef DEBUG_IOPORT

    if (loglevel & CPU_LOG_IOPORT)

        fprintf(logfile, "outl: %04x %08x\n", addr, val);

#endif

    ioport_write(2, addr, val);

#ifdef USE_KQEMU

    if (env)

        env->last_io_time = cpu_get_time_fast();

#endif

}

int cpu_inb(CPUState *env, int addr)

{

    int val;

    val = ioport_read(0, addr);

#ifdef DEBUG_IOPORT

    if (loglevel & CPU_LOG_IOPORT)

        fprintf(logfile, "inb : %04x %02x\n", addr, val);

#endif

#ifdef USE_KQEMU

    if (env)

        env->last_io_time = cpu_get_time_fast();

#endif

    return val;

}

int cpu_inw(CPUState *env, int addr)

{

    int val;

    val = ioport_read(1, addr);

#ifdef DEBUG_IOPORT

    if (loglevel & CPU_LOG_IOPORT)

        fprintf(logfile, "inw : %04x %04x\n", addr, val);

#endif

#ifdef USE_KQEMU

    if (env)

        env->last_io_time = cpu_get_time_fast();

#endif

    return val;

}

int cpu_inl(CPUState *env, int addr)

{

    int val;

    val = ioport_read(2, addr);

#ifdef DEBUG_IOPORT

    if (loglevel & CPU_LOG_IOPORT)

        fprintf(logfile, "inl : %04x %08x\n", addr, val);

#endif

#ifdef USE_KQEMU

    if (env)

        env->last_io_time = cpu_get_time_fast();

#endif

    return val;

}

/***********************************************************/

void hw_error(const char *fmt, ...)

{

    va_list ap;

    CPUState *env;

    va_start(ap, fmt);

    fprintf(stderr, "qemu: hardware error: ");

    vfprintf(stderr, fmt, ap);

    fprintf(stderr, "\n");

    for(env = first_cpu; env != NULL; env = env->next_cpu) {

        fprintf(stderr, "CPU #%d:\n", env->cpu_index);

#ifdef TARGET_I386

        cpu_dump_state(env, stderr, fprintf, X86_DUMP_FPU);

#else

        cpu_dump_state(env, stderr, fprintf, 0);

#endif

    }

    va_end(ap);

    abort();

}

/***************/

/* ballooning */

static QEMUBalloonEvent *qemu_balloon_event;

void *qemu_balloon_event_opaque;

void qemu_add_balloon_handler(QEMUBalloonEvent *func, void *opaque)

{

    qemu_balloon_event = func;

    qemu_balloon_event_opaque = opaque;

}

void qemu_balloon(ram_addr_t target)

{

    if (qemu_balloon_event)