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/*
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* QEMU System Emulator
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*
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* Copyright (c) 2003-2004 Fabrice Bellard
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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#include "vl.h" |
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#include <getopt.h> |
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#include <unistd.h> |
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#include <fcntl.h> |
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#include <signal.h> |
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#include <time.h> |
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#include <malloc.h> |
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#include <errno.h> |
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#include <sys/time.h> |
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#ifndef _WIN32
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#include <sys/times.h> |
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#include <sys/wait.h> |
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#include <pty.h> |
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#include <termios.h> |
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#include <sys/poll.h> |
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#include <sys/mman.h> |
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#include <sys/ioctl.h> |
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#include <sys/socket.h> |
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#include <linux/if.h> |
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#include <linux/if_tun.h> |
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#endif
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#ifdef _WIN32
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#include <sys/timeb.h> |
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#include <windows.h> |
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#define getopt_long_only getopt_long
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#define memalign(align, size) malloc(size)
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#endif
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#include "disas.h" |
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#include "exec-all.h" |
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#define DEFAULT_NETWORK_SCRIPT "/etc/qemu-ifup" |
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//#define DEBUG_UNUSED_IOPORT
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#if !defined(CONFIG_SOFTMMU)
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#define PHYS_RAM_MAX_SIZE (256 * 1024 * 1024) |
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#else
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#define PHYS_RAM_MAX_SIZE (2047 * 1024 * 1024) |
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#endif
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/* in ms */
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#define GUI_REFRESH_INTERVAL 30 |
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/* XXX: use a two level table to limit memory usage */
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#define MAX_IOPORTS 65536 |
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const char *bios_dir = CONFIG_QEMU_SHAREDIR; |
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char phys_ram_file[1024]; |
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CPUState *global_env; |
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CPUState *cpu_single_env; |
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void *ioport_opaque[MAX_IOPORTS];
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IOPortReadFunc *ioport_read_table[3][MAX_IOPORTS];
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IOPortWriteFunc *ioport_write_table[3][MAX_IOPORTS];
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BlockDriverState *bs_table[MAX_DISKS], *fd_table[MAX_FD]; |
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int vga_ram_size;
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static DisplayState display_state;
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int nographic;
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int64_t ticks_per_sec; |
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int boot_device = 'c'; |
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static int ram_size; |
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static char network_script[1024]; |
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int pit_min_timer_count = 0; |
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int nb_nics;
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NetDriverState nd_table[MAX_NICS]; |
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SerialState *serial_console; |
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QEMUTimer *gui_timer; |
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int vm_running;
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/***********************************************************/
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/* x86 io ports */
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uint32_t default_ioport_readb(void *opaque, uint32_t address)
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{ |
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#ifdef DEBUG_UNUSED_IOPORT
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fprintf(stderr, "inb: port=0x%04x\n", address);
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#endif
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return 0xff; |
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} |
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void default_ioport_writeb(void *opaque, uint32_t address, uint32_t data) |
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{ |
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#ifdef DEBUG_UNUSED_IOPORT
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fprintf(stderr, "outb: port=0x%04x data=0x%02x\n", address, data);
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#endif
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} |
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/* default is to make two byte accesses */
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uint32_t default_ioport_readw(void *opaque, uint32_t address)
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{ |
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uint32_t data; |
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data = ioport_read_table[0][address & (MAX_IOPORTS - 1)](opaque, address); |
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data |= ioport_read_table[0][(address + 1) & (MAX_IOPORTS - 1)](opaque, address + 1) << 8; |
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return data;
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} |
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void default_ioport_writew(void *opaque, uint32_t address, uint32_t data) |
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{ |
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ioport_write_table[0][address & (MAX_IOPORTS - 1)](opaque, address, data & 0xff); |
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ioport_write_table[0][(address + 1) & (MAX_IOPORTS - 1)](opaque, address + 1, (data >> 8) & 0xff); |
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} |
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uint32_t default_ioport_readl(void *opaque, uint32_t address)
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{ |
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#ifdef DEBUG_UNUSED_IOPORT
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fprintf(stderr, "inl: port=0x%04x\n", address);
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#endif
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return 0xffffffff; |
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} |
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void default_ioport_writel(void *opaque, uint32_t address, uint32_t data) |
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{ |
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#ifdef DEBUG_UNUSED_IOPORT
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fprintf(stderr, "outl: port=0x%04x data=0x%02x\n", address, data);
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#endif
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} |
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void init_ioports(void) |
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{ |
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int i;
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for(i = 0; i < MAX_IOPORTS; i++) { |
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ioport_read_table[0][i] = default_ioport_readb;
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ioport_write_table[0][i] = default_ioport_writeb;
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ioport_read_table[1][i] = default_ioport_readw;
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ioport_write_table[1][i] = default_ioport_writew;
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ioport_read_table[2][i] = default_ioport_readl;
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ioport_write_table[2][i] = default_ioport_writel;
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} |
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} |
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/* size is the word size in byte */
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int register_ioport_read(int start, int length, int size, |
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IOPortReadFunc *func, void *opaque)
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{ |
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int i, bsize;
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if (size == 1) { |
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bsize = 0;
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} else if (size == 2) { |
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bsize = 1;
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} else if (size == 4) { |
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bsize = 2;
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} else {
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hw_error("register_ioport_read: invalid size");
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return -1; |
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} |
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for(i = start; i < start + length; i += size) {
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ioport_read_table[bsize][i] = func; |
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if (ioport_opaque[i] != NULL && ioport_opaque[i] != opaque) |
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hw_error("register_ioport_read: invalid opaque");
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ioport_opaque[i] = opaque; |
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} |
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return 0; |
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} |
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/* size is the word size in byte */
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int register_ioport_write(int start, int length, int size, |
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IOPortWriteFunc *func, void *opaque)
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{ |
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int i, bsize;
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if (size == 1) { |
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bsize = 0;
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} else if (size == 2) { |
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bsize = 1;
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} else if (size == 4) { |
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bsize = 2;
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} else {
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hw_error("register_ioport_write: invalid size");
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return -1; |
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} |
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for(i = start; i < start + length; i += size) {
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ioport_write_table[bsize][i] = func; |
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if (ioport_opaque[i] != NULL && ioport_opaque[i] != opaque) |
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hw_error("register_ioport_read: invalid opaque");
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ioport_opaque[i] = opaque; |
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} |
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return 0; |
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} |
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void pstrcpy(char *buf, int buf_size, const char *str) |
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{ |
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int c;
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char *q = buf;
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if (buf_size <= 0) |
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return;
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for(;;) {
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c = *str++; |
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if (c == 0 || q >= buf + buf_size - 1) |
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break;
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*q++ = c; |
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} |
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*q = '\0';
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} |
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/* strcat and truncate. */
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char *pstrcat(char *buf, int buf_size, const char *s) |
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{ |
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int len;
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len = strlen(buf); |
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if (len < buf_size)
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pstrcpy(buf + len, buf_size - len, s); |
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return buf;
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} |
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/* return the size or -1 if error */
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int load_image(const char *filename, uint8_t *addr) |
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{ |
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int fd, size;
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fd = open(filename, O_RDONLY); |
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if (fd < 0) |
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return -1; |
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size = lseek(fd, 0, SEEK_END);
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lseek(fd, 0, SEEK_SET);
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if (read(fd, addr, size) != size) {
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close(fd); |
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return -1; |
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} |
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close(fd); |
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return size;
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} |
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void cpu_outb(CPUState *env, int addr, int val) |
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{ |
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addr &= (MAX_IOPORTS - 1);
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ioport_write_table[0][addr](ioport_opaque[addr], addr, val);
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} |
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void cpu_outw(CPUState *env, int addr, int val) |
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{ |
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addr &= (MAX_IOPORTS - 1);
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ioport_write_table[1][addr](ioport_opaque[addr], addr, val);
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} |
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void cpu_outl(CPUState *env, int addr, int val) |
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{ |
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addr &= (MAX_IOPORTS - 1);
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ioport_write_table[2][addr](ioport_opaque[addr], addr, val);
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} |
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int cpu_inb(CPUState *env, int addr) |
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{ |
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addr &= (MAX_IOPORTS - 1);
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return ioport_read_table[0][addr](ioport_opaque[addr], addr); |
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} |
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int cpu_inw(CPUState *env, int addr) |
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{ |
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addr &= (MAX_IOPORTS - 1);
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return ioport_read_table[1][addr](ioport_opaque[addr], addr); |
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} |
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int cpu_inl(CPUState *env, int addr) |
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{ |
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addr &= (MAX_IOPORTS - 1);
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return ioport_read_table[2][addr](ioport_opaque[addr], addr); |
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} |
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/***********************************************************/
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void hw_error(const char *fmt, ...) |
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{ |
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va_list ap; |
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va_start(ap, fmt); |
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fprintf(stderr, "qemu: hardware error: ");
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vfprintf(stderr, fmt, ap); |
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fprintf(stderr, "\n");
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#ifdef TARGET_I386
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cpu_x86_dump_state(global_env, stderr, X86_DUMP_FPU | X86_DUMP_CCOP); |
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#else
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cpu_dump_state(global_env, stderr, 0);
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#endif
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va_end(ap); |
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abort(); |
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} |
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/***********************************************************/
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/* timers */
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#if defined(__powerpc__)
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static inline uint32_t get_tbl(void) |
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{ |
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uint32_t tbl; |
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asm volatile("mftb %0" : "=r" (tbl)); |
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return tbl;
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} |
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static inline uint32_t get_tbu(void) |
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{ |
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uint32_t tbl; |
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asm volatile("mftbu %0" : "=r" (tbl)); |
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return tbl;
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} |
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int64_t cpu_get_real_ticks(void)
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{ |
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uint32_t l, h, h1; |
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/* NOTE: we test if wrapping has occurred */
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do {
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h = get_tbu(); |
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l = get_tbl(); |
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h1 = get_tbu(); |
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} while (h != h1);
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return ((int64_t)h << 32) | l; |
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} |
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#elif defined(__i386__)
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int64_t cpu_get_real_ticks(void)
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{ |
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int64_t val; |
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asm("rdtsc" : "=A" (val)); |
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return val;
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} |
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#else
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#error unsupported CPU
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#endif
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static int64_t cpu_ticks_offset;
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static int cpu_ticks_enabled; |
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static inline int64_t cpu_get_ticks(void) |
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{ |
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if (!cpu_ticks_enabled) {
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return cpu_ticks_offset;
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} else {
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return cpu_get_real_ticks() + cpu_ticks_offset;
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} |
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} |
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/* enable cpu_get_ticks() */
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void cpu_enable_ticks(void) |
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{ |
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if (!cpu_ticks_enabled) {
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cpu_ticks_offset -= cpu_get_real_ticks(); |
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cpu_ticks_enabled = 1;
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} |
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} |
372 |
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/* disable cpu_get_ticks() : the clock is stopped. You must not call
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cpu_get_ticks() after that. */
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void cpu_disable_ticks(void) |
376 |
{ |
377 |
if (cpu_ticks_enabled) {
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cpu_ticks_offset = cpu_get_ticks(); |
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cpu_ticks_enabled = 0;
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} |
381 |
} |
382 |
|
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static int64_t get_clock(void) |
384 |
{ |
385 |
#ifdef _WIN32
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struct _timeb tb;
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_ftime(&tb); |
388 |
return ((int64_t)tb.time * 1000 + (int64_t)tb.millitm) * 1000; |
389 |
#else
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struct timeval tv;
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gettimeofday(&tv, NULL);
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return tv.tv_sec * 1000000LL + tv.tv_usec; |
393 |
#endif
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} |
395 |
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396 |
void cpu_calibrate_ticks(void) |
397 |
{ |
398 |
int64_t usec, ticks; |
399 |
|
400 |
usec = get_clock(); |
401 |
ticks = cpu_get_real_ticks(); |
402 |
#ifdef _WIN32
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Sleep(50);
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#else
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usleep(50 * 1000); |
406 |
#endif
|
407 |
usec = get_clock() - usec; |
408 |
ticks = cpu_get_real_ticks() - ticks; |
409 |
ticks_per_sec = (ticks * 1000000LL + (usec >> 1)) / usec; |
410 |
} |
411 |
|
412 |
/* compute with 96 bit intermediate result: (a*b)/c */
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413 |
uint64_t muldiv64(uint64_t a, uint32_t b, uint32_t c) |
414 |
{ |
415 |
union {
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416 |
uint64_t ll; |
417 |
struct {
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418 |
#ifdef WORDS_BIGENDIAN
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419 |
uint32_t high, low; |
420 |
#else
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421 |
uint32_t low, high; |
422 |
#endif
|
423 |
} l; |
424 |
} u, res; |
425 |
uint64_t rl, rh; |
426 |
|
427 |
u.ll = a; |
428 |
rl = (uint64_t)u.l.low * (uint64_t)b; |
429 |
rh = (uint64_t)u.l.high * (uint64_t)b; |
430 |
rh += (rl >> 32);
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431 |
res.l.high = rh / c; |
432 |
res.l.low = (((rh % c) << 32) + (rl & 0xffffffff)) / c; |
433 |
return res.ll;
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} |
435 |
|
436 |
#define QEMU_TIMER_REALTIME 0 |
437 |
#define QEMU_TIMER_VIRTUAL 1 |
438 |
|
439 |
struct QEMUClock {
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440 |
int type;
|
441 |
/* XXX: add frequency */
|
442 |
}; |
443 |
|
444 |
struct QEMUTimer {
|
445 |
QEMUClock *clock; |
446 |
int64_t expire_time; |
447 |
QEMUTimerCB *cb; |
448 |
void *opaque;
|
449 |
struct QEMUTimer *next;
|
450 |
}; |
451 |
|
452 |
QEMUClock *rt_clock; |
453 |
QEMUClock *vm_clock; |
454 |
|
455 |
static QEMUTimer *active_timers[2]; |
456 |
#ifndef _WIN32
|
457 |
/* frequency of the times() clock tick */
|
458 |
static int timer_freq; |
459 |
#endif
|
460 |
|
461 |
QEMUClock *qemu_new_clock(int type)
|
462 |
{ |
463 |
QEMUClock *clock; |
464 |
clock = qemu_mallocz(sizeof(QEMUClock));
|
465 |
if (!clock)
|
466 |
return NULL; |
467 |
clock->type = type; |
468 |
return clock;
|
469 |
} |
470 |
|
471 |
QEMUTimer *qemu_new_timer(QEMUClock *clock, QEMUTimerCB *cb, void *opaque)
|
472 |
{ |
473 |
QEMUTimer *ts; |
474 |
|
475 |
ts = qemu_mallocz(sizeof(QEMUTimer));
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476 |
ts->clock = clock; |
477 |
ts->cb = cb; |
478 |
ts->opaque = opaque; |
479 |
return ts;
|
480 |
} |
481 |
|
482 |
void qemu_free_timer(QEMUTimer *ts)
|
483 |
{ |
484 |
qemu_free(ts); |
485 |
} |
486 |
|
487 |
/* stop a timer, but do not dealloc it */
|
488 |
void qemu_del_timer(QEMUTimer *ts)
|
489 |
{ |
490 |
QEMUTimer **pt, *t; |
491 |
|
492 |
/* NOTE: this code must be signal safe because
|
493 |
qemu_timer_expired() can be called from a signal. */
|
494 |
pt = &active_timers[ts->clock->type]; |
495 |
for(;;) {
|
496 |
t = *pt; |
497 |
if (!t)
|
498 |
break;
|
499 |
if (t == ts) {
|
500 |
*pt = t->next; |
501 |
break;
|
502 |
} |
503 |
pt = &t->next; |
504 |
} |
505 |
} |
506 |
|
507 |
/* modify the current timer so that it will be fired when current_time
|
508 |
>= expire_time. The corresponding callback will be called. */
|
509 |
void qemu_mod_timer(QEMUTimer *ts, int64_t expire_time)
|
510 |
{ |
511 |
QEMUTimer **pt, *t; |
512 |
|
513 |
qemu_del_timer(ts); |
514 |
|
515 |
/* add the timer in the sorted list */
|
516 |
/* NOTE: this code must be signal safe because
|
517 |
qemu_timer_expired() can be called from a signal. */
|
518 |
pt = &active_timers[ts->clock->type]; |
519 |
for(;;) {
|
520 |
t = *pt; |
521 |
if (!t)
|
522 |
break;
|
523 |
if (t->expire_time > expire_time)
|
524 |
break;
|
525 |
pt = &t->next; |
526 |
} |
527 |
ts->expire_time = expire_time; |
528 |
ts->next = *pt; |
529 |
*pt = ts; |
530 |
} |
531 |
|
532 |
int qemu_timer_pending(QEMUTimer *ts)
|
533 |
{ |
534 |
QEMUTimer *t; |
535 |
for(t = active_timers[ts->clock->type]; t != NULL; t = t->next) { |
536 |
if (t == ts)
|
537 |
return 1; |
538 |
} |
539 |
return 0; |
540 |
} |
541 |
|
542 |
static inline int qemu_timer_expired(QEMUTimer *timer_head, int64_t current_time) |
543 |
{ |
544 |
if (!timer_head)
|
545 |
return 0; |
546 |
return (timer_head->expire_time <= current_time);
|
547 |
} |
548 |
|
549 |
static void qemu_run_timers(QEMUTimer **ptimer_head, int64_t current_time) |
550 |
{ |
551 |
QEMUTimer *ts; |
552 |
|
553 |
for(;;) {
|
554 |
ts = *ptimer_head; |
555 |
if (ts->expire_time > current_time)
|
556 |
break;
|
557 |
/* remove timer from the list before calling the callback */
|
558 |
*ptimer_head = ts->next; |
559 |
ts->next = NULL;
|
560 |
|
561 |
/* run the callback (the timer list can be modified) */
|
562 |
ts->cb(ts->opaque); |
563 |
} |
564 |
} |
565 |
|
566 |
int64_t qemu_get_clock(QEMUClock *clock) |
567 |
{ |
568 |
switch(clock->type) {
|
569 |
case QEMU_TIMER_REALTIME:
|
570 |
#ifdef _WIN32
|
571 |
return GetTickCount();
|
572 |
#else
|
573 |
/* XXX: portability among Linux hosts */
|
574 |
if (timer_freq == 100) { |
575 |
return times(NULL) * 10; |
576 |
} else {
|
577 |
return ((int64_t)times(NULL) * 1000) / timer_freq; |
578 |
} |
579 |
#endif
|
580 |
default:
|
581 |
case QEMU_TIMER_VIRTUAL:
|
582 |
return cpu_get_ticks();
|
583 |
} |
584 |
} |
585 |
|
586 |
/* save a timer */
|
587 |
void qemu_put_timer(QEMUFile *f, QEMUTimer *ts)
|
588 |
{ |
589 |
uint64_t expire_time; |
590 |
|
591 |
if (qemu_timer_pending(ts)) {
|
592 |
expire_time = ts->expire_time; |
593 |
} else {
|
594 |
expire_time = -1;
|
595 |
} |
596 |
qemu_put_be64(f, expire_time); |
597 |
} |
598 |
|
599 |
void qemu_get_timer(QEMUFile *f, QEMUTimer *ts)
|
600 |
{ |
601 |
uint64_t expire_time; |
602 |
|
603 |
expire_time = qemu_get_be64(f); |
604 |
if (expire_time != -1) { |
605 |
qemu_mod_timer(ts, expire_time); |
606 |
} else {
|
607 |
qemu_del_timer(ts); |
608 |
} |
609 |
} |
610 |
|
611 |
static void timer_save(QEMUFile *f, void *opaque) |
612 |
{ |
613 |
if (cpu_ticks_enabled) {
|
614 |
hw_error("cannot save state if virtual timers are running");
|
615 |
} |
616 |
qemu_put_be64s(f, &cpu_ticks_offset); |
617 |
qemu_put_be64s(f, &ticks_per_sec); |
618 |
} |
619 |
|
620 |
static int timer_load(QEMUFile *f, void *opaque, int version_id) |
621 |
{ |
622 |
if (version_id != 1) |
623 |
return -EINVAL;
|
624 |
if (cpu_ticks_enabled) {
|
625 |
return -EINVAL;
|
626 |
} |
627 |
qemu_get_be64s(f, &cpu_ticks_offset); |
628 |
qemu_get_be64s(f, &ticks_per_sec); |
629 |
return 0; |
630 |
} |
631 |
|
632 |
#ifdef _WIN32
|
633 |
void CALLBACK host_alarm_handler(UINT uTimerID, UINT uMsg,
|
634 |
DWORD_PTR dwUser, DWORD_PTR dw1, DWORD_PTR dw2) |
635 |
#else
|
636 |
static void host_alarm_handler(int host_signum) |
637 |
#endif
|
638 |
{ |
639 |
if (qemu_timer_expired(active_timers[QEMU_TIMER_VIRTUAL],
|
640 |
qemu_get_clock(vm_clock)) || |
641 |
qemu_timer_expired(active_timers[QEMU_TIMER_REALTIME], |
642 |
qemu_get_clock(rt_clock))) { |
643 |
/* stop the cpu because a timer occured */
|
644 |
cpu_interrupt(global_env, CPU_INTERRUPT_EXIT); |
645 |
} |
646 |
} |
647 |
|
648 |
static void init_timers(void) |
649 |
{ |
650 |
rt_clock = qemu_new_clock(QEMU_TIMER_REALTIME); |
651 |
vm_clock = qemu_new_clock(QEMU_TIMER_VIRTUAL); |
652 |
|
653 |
#ifdef _WIN32
|
654 |
{ |
655 |
int count=0; |
656 |
MMRESULT timerID = timeSetEvent(10, // interval (ms) |
657 |
0, // resolution |
658 |
host_alarm_handler, // function
|
659 |
(DWORD)&count, // user parameter
|
660 |
TIME_PERIODIC | TIME_CALLBACK_FUNCTION); |
661 |
if( !timerID ) {
|
662 |
perror("failed timer alarm");
|
663 |
exit(1);
|
664 |
} |
665 |
} |
666 |
pit_min_timer_count = ((uint64_t)10000 * PIT_FREQ) / 1000000; |
667 |
#else
|
668 |
{ |
669 |
struct sigaction act;
|
670 |
struct itimerval itv;
|
671 |
|
672 |
/* get times() syscall frequency */
|
673 |
timer_freq = sysconf(_SC_CLK_TCK); |
674 |
|
675 |
/* timer signal */
|
676 |
sigfillset(&act.sa_mask); |
677 |
act.sa_flags = 0;
|
678 |
#if defined (TARGET_I386) && defined(USE_CODE_COPY)
|
679 |
act.sa_flags |= SA_ONSTACK; |
680 |
#endif
|
681 |
act.sa_handler = host_alarm_handler; |
682 |
sigaction(SIGALRM, &act, NULL);
|
683 |
|
684 |
itv.it_interval.tv_sec = 0;
|
685 |
itv.it_interval.tv_usec = 1000;
|
686 |
itv.it_value.tv_sec = 0;
|
687 |
itv.it_value.tv_usec = 10 * 1000; |
688 |
setitimer(ITIMER_REAL, &itv, NULL);
|
689 |
/* we probe the tick duration of the kernel to inform the user if
|
690 |
the emulated kernel requested a too high timer frequency */
|
691 |
getitimer(ITIMER_REAL, &itv); |
692 |
pit_min_timer_count = ((uint64_t)itv.it_interval.tv_usec * PIT_FREQ) / |
693 |
1000000;
|
694 |
} |
695 |
#endif
|
696 |
} |
697 |
|
698 |
/***********************************************************/
|
699 |
/* serial device */
|
700 |
|
701 |
#ifdef _WIN32
|
702 |
|
703 |
int serial_open_device(void) |
704 |
{ |
705 |
return -1; |
706 |
} |
707 |
|
708 |
#else
|
709 |
|
710 |
int serial_open_device(void) |
711 |
{ |
712 |
char slave_name[1024]; |
713 |
int master_fd, slave_fd;
|
714 |
|
715 |
if (serial_console == NULL && nographic) { |
716 |
/* use console for serial port */
|
717 |
return 0; |
718 |
} else {
|
719 |
if (openpty(&master_fd, &slave_fd, slave_name, NULL, NULL) < 0) { |
720 |
fprintf(stderr, "warning: could not create pseudo terminal for serial port\n");
|
721 |
return -1; |
722 |
} |
723 |
fprintf(stderr, "Serial port redirected to %s\n", slave_name);
|
724 |
return master_fd;
|
725 |
} |
726 |
} |
727 |
|
728 |
#endif
|
729 |
|
730 |
/***********************************************************/
|
731 |
/* Linux network device redirector */
|
732 |
|
733 |
#ifdef _WIN32
|
734 |
|
735 |
static int net_init(void) |
736 |
{ |
737 |
return 0; |
738 |
} |
739 |
|
740 |
void net_send_packet(NetDriverState *nd, const uint8_t *buf, int size) |
741 |
{ |
742 |
} |
743 |
|
744 |
#else
|
745 |
|
746 |
static int tun_open(char *ifname, int ifname_size) |
747 |
{ |
748 |
struct ifreq ifr;
|
749 |
int fd, ret;
|
750 |
|
751 |
fd = open("/dev/net/tun", O_RDWR);
|
752 |
if (fd < 0) { |
753 |
fprintf(stderr, "warning: could not open /dev/net/tun: no virtual network emulation\n");
|
754 |
return -1; |
755 |
} |
756 |
memset(&ifr, 0, sizeof(ifr)); |
757 |
ifr.ifr_flags = IFF_TAP | IFF_NO_PI; |
758 |
pstrcpy(ifr.ifr_name, IFNAMSIZ, "tun%d");
|
759 |
ret = ioctl(fd, TUNSETIFF, (void *) &ifr);
|
760 |
if (ret != 0) { |
761 |
fprintf(stderr, "warning: could not configure /dev/net/tun: no virtual network emulation\n");
|
762 |
close(fd); |
763 |
return -1; |
764 |
} |
765 |
printf("Connected to host network interface: %s\n", ifr.ifr_name);
|
766 |
pstrcpy(ifname, ifname_size, ifr.ifr_name); |
767 |
fcntl(fd, F_SETFL, O_NONBLOCK); |
768 |
return fd;
|
769 |
} |
770 |
|
771 |
static int net_init(void) |
772 |
{ |
773 |
int pid, status, launch_script, i;
|
774 |
NetDriverState *nd; |
775 |
char *args[MAX_NICS + 2]; |
776 |
char **parg;
|
777 |
|
778 |
launch_script = 0;
|
779 |
for(i = 0; i < nb_nics; i++) { |
780 |
nd = &nd_table[i]; |
781 |
if (nd->fd < 0) { |
782 |
nd->fd = tun_open(nd->ifname, sizeof(nd->ifname));
|
783 |
if (nd->fd >= 0) |
784 |
launch_script = 1;
|
785 |
} |
786 |
} |
787 |
|
788 |
if (launch_script) {
|
789 |
/* try to launch network init script */
|
790 |
pid = fork(); |
791 |
if (pid >= 0) { |
792 |
if (pid == 0) { |
793 |
parg = args; |
794 |
*parg++ = network_script; |
795 |
for(i = 0; i < nb_nics; i++) { |
796 |
nd = &nd_table[i]; |
797 |
if (nd->fd >= 0) { |
798 |
*parg++ = nd->ifname; |
799 |
} |
800 |
} |
801 |
*parg++ = NULL;
|
802 |
execv(network_script, args); |
803 |
exit(1);
|
804 |
} |
805 |
while (waitpid(pid, &status, 0) != pid); |
806 |
if (!WIFEXITED(status) ||
|
807 |
WEXITSTATUS(status) != 0) {
|
808 |
fprintf(stderr, "%s: could not launch network script\n",
|
809 |
network_script); |
810 |
} |
811 |
} |
812 |
} |
813 |
return 0; |
814 |
} |
815 |
|
816 |
void net_send_packet(NetDriverState *nd, const uint8_t *buf, int size) |
817 |
{ |
818 |
#ifdef DEBUG_NE2000
|
819 |
printf("NE2000: sending packet size=%d\n", size);
|
820 |
#endif
|
821 |
write(nd->fd, buf, size); |
822 |
} |
823 |
|
824 |
#endif
|
825 |
|
826 |
/***********************************************************/
|
827 |
/* dumb display */
|
828 |
|
829 |
#ifdef _WIN32
|
830 |
|
831 |
static void term_exit(void) |
832 |
{ |
833 |
} |
834 |
|
835 |
static void term_init(void) |
836 |
{ |
837 |
} |
838 |
|
839 |
#else
|
840 |
|
841 |
/* init terminal so that we can grab keys */
|
842 |
static struct termios oldtty; |
843 |
|
844 |
static void term_exit(void) |
845 |
{ |
846 |
tcsetattr (0, TCSANOW, &oldtty);
|
847 |
} |
848 |
|
849 |
static void term_init(void) |
850 |
{ |
851 |
struct termios tty;
|
852 |
|
853 |
tcgetattr (0, &tty);
|
854 |
oldtty = tty; |
855 |
|
856 |
tty.c_iflag &= ~(IGNBRK|BRKINT|PARMRK|ISTRIP |
857 |
|INLCR|IGNCR|ICRNL|IXON); |
858 |
tty.c_oflag |= OPOST; |
859 |
tty.c_lflag &= ~(ECHO|ECHONL|ICANON|IEXTEN); |
860 |
/* if graphical mode, we allow Ctrl-C handling */
|
861 |
if (nographic)
|
862 |
tty.c_lflag &= ~ISIG; |
863 |
tty.c_cflag &= ~(CSIZE|PARENB); |
864 |
tty.c_cflag |= CS8; |
865 |
tty.c_cc[VMIN] = 1;
|
866 |
tty.c_cc[VTIME] = 0;
|
867 |
|
868 |
tcsetattr (0, TCSANOW, &tty);
|
869 |
|
870 |
atexit(term_exit); |
871 |
|
872 |
fcntl(0, F_SETFL, O_NONBLOCK);
|
873 |
} |
874 |
|
875 |
#endif
|
876 |
|
877 |
static void dumb_update(DisplayState *ds, int x, int y, int w, int h) |
878 |
{ |
879 |
} |
880 |
|
881 |
static void dumb_resize(DisplayState *ds, int w, int h) |
882 |
{ |
883 |
} |
884 |
|
885 |
static void dumb_refresh(DisplayState *ds) |
886 |
{ |
887 |
vga_update_display(); |
888 |
} |
889 |
|
890 |
void dumb_display_init(DisplayState *ds)
|
891 |
{ |
892 |
ds->data = NULL;
|
893 |
ds->linesize = 0;
|
894 |
ds->depth = 0;
|
895 |
ds->dpy_update = dumb_update; |
896 |
ds->dpy_resize = dumb_resize; |
897 |
ds->dpy_refresh = dumb_refresh; |
898 |
} |
899 |
|
900 |
#if !defined(CONFIG_SOFTMMU)
|
901 |
/***********************************************************/
|
902 |
/* cpu signal handler */
|
903 |
static void host_segv_handler(int host_signum, siginfo_t *info, |
904 |
void *puc)
|
905 |
{ |
906 |
if (cpu_signal_handler(host_signum, info, puc))
|
907 |
return;
|
908 |
term_exit(); |
909 |
abort(); |
910 |
} |
911 |
#endif
|
912 |
|
913 |
/***********************************************************/
|
914 |
/* I/O handling */
|
915 |
|
916 |
#define MAX_IO_HANDLERS 64 |
917 |
|
918 |
typedef struct IOHandlerRecord { |
919 |
int fd;
|
920 |
IOCanRWHandler *fd_can_read; |
921 |
IOReadHandler *fd_read; |
922 |
void *opaque;
|
923 |
/* temporary data */
|
924 |
struct pollfd *ufd;
|
925 |
int max_size;
|
926 |
struct IOHandlerRecord *next;
|
927 |
} IOHandlerRecord; |
928 |
|
929 |
static IOHandlerRecord *first_io_handler;
|
930 |
|
931 |
int qemu_add_fd_read_handler(int fd, IOCanRWHandler *fd_can_read, |
932 |
IOReadHandler *fd_read, void *opaque)
|
933 |
{ |
934 |
IOHandlerRecord *ioh; |
935 |
|
936 |
ioh = qemu_mallocz(sizeof(IOHandlerRecord));
|
937 |
if (!ioh)
|
938 |
return -1; |
939 |
ioh->fd = fd; |
940 |
ioh->fd_can_read = fd_can_read; |
941 |
ioh->fd_read = fd_read; |
942 |
ioh->opaque = opaque; |
943 |
ioh->next = first_io_handler; |
944 |
first_io_handler = ioh; |
945 |
return 0; |
946 |
} |
947 |
|
948 |
void qemu_del_fd_read_handler(int fd) |
949 |
{ |
950 |
IOHandlerRecord **pioh, *ioh; |
951 |
|
952 |
pioh = &first_io_handler; |
953 |
for(;;) {
|
954 |
ioh = *pioh; |
955 |
if (ioh == NULL) |
956 |
break;
|
957 |
if (ioh->fd == fd) {
|
958 |
*pioh = ioh->next; |
959 |
break;
|
960 |
} |
961 |
pioh = &ioh->next; |
962 |
} |
963 |
} |
964 |
|
965 |
/***********************************************************/
|
966 |
/* savevm/loadvm support */
|
967 |
|
968 |
void qemu_put_buffer(QEMUFile *f, const uint8_t *buf, int size) |
969 |
{ |
970 |
fwrite(buf, 1, size, f);
|
971 |
} |
972 |
|
973 |
void qemu_put_byte(QEMUFile *f, int v) |
974 |
{ |
975 |
fputc(v, f); |
976 |
} |
977 |
|
978 |
void qemu_put_be16(QEMUFile *f, unsigned int v) |
979 |
{ |
980 |
qemu_put_byte(f, v >> 8);
|
981 |
qemu_put_byte(f, v); |
982 |
} |
983 |
|
984 |
void qemu_put_be32(QEMUFile *f, unsigned int v) |
985 |
{ |
986 |
qemu_put_byte(f, v >> 24);
|
987 |
qemu_put_byte(f, v >> 16);
|
988 |
qemu_put_byte(f, v >> 8);
|
989 |
qemu_put_byte(f, v); |
990 |
} |
991 |
|
992 |
void qemu_put_be64(QEMUFile *f, uint64_t v)
|
993 |
{ |
994 |
qemu_put_be32(f, v >> 32);
|
995 |
qemu_put_be32(f, v); |
996 |
} |
997 |
|
998 |
int qemu_get_buffer(QEMUFile *f, uint8_t *buf, int size) |
999 |
{ |
1000 |
return fread(buf, 1, size, f); |
1001 |
} |
1002 |
|
1003 |
int qemu_get_byte(QEMUFile *f)
|
1004 |
{ |
1005 |
int v;
|
1006 |
v = fgetc(f); |
1007 |
if (v == EOF) |
1008 |
return 0; |
1009 |
else
|
1010 |
return v;
|
1011 |
} |
1012 |
|
1013 |
unsigned int qemu_get_be16(QEMUFile *f) |
1014 |
{ |
1015 |
unsigned int v; |
1016 |
v = qemu_get_byte(f) << 8;
|
1017 |
v |= qemu_get_byte(f); |
1018 |
return v;
|
1019 |
} |
1020 |
|
1021 |
unsigned int qemu_get_be32(QEMUFile *f) |
1022 |
{ |
1023 |
unsigned int v; |
1024 |
v = qemu_get_byte(f) << 24;
|
1025 |
v |= qemu_get_byte(f) << 16;
|
1026 |
v |= qemu_get_byte(f) << 8;
|
1027 |
v |= qemu_get_byte(f); |
1028 |
return v;
|
1029 |
} |
1030 |
|
1031 |
uint64_t qemu_get_be64(QEMUFile *f) |
1032 |
{ |
1033 |
uint64_t v; |
1034 |
v = (uint64_t)qemu_get_be32(f) << 32;
|
1035 |
v |= qemu_get_be32(f); |
1036 |
return v;
|
1037 |
} |
1038 |
|
1039 |
int64_t qemu_ftell(QEMUFile *f) |
1040 |
{ |
1041 |
return ftell(f);
|
1042 |
} |
1043 |
|
1044 |
int64_t qemu_fseek(QEMUFile *f, int64_t pos, int whence)
|
1045 |
{ |
1046 |
if (fseek(f, pos, whence) < 0) |
1047 |
return -1; |
1048 |
return ftell(f);
|
1049 |
} |
1050 |
|
1051 |
typedef struct SaveStateEntry { |
1052 |
char idstr[256]; |
1053 |
int instance_id;
|
1054 |
int version_id;
|
1055 |
SaveStateHandler *save_state; |
1056 |
LoadStateHandler *load_state; |
1057 |
void *opaque;
|
1058 |
struct SaveStateEntry *next;
|
1059 |
} SaveStateEntry; |
1060 |
|
1061 |
static SaveStateEntry *first_se;
|
1062 |
|
1063 |
int register_savevm(const char *idstr, |
1064 |
int instance_id,
|
1065 |
int version_id,
|
1066 |
SaveStateHandler *save_state, |
1067 |
LoadStateHandler *load_state, |
1068 |
void *opaque)
|
1069 |
{ |
1070 |
SaveStateEntry *se, **pse; |
1071 |
|
1072 |
se = qemu_malloc(sizeof(SaveStateEntry));
|
1073 |
if (!se)
|
1074 |
return -1; |
1075 |
pstrcpy(se->idstr, sizeof(se->idstr), idstr);
|
1076 |
se->instance_id = instance_id; |
1077 |
se->version_id = version_id; |
1078 |
se->save_state = save_state; |
1079 |
se->load_state = load_state; |
1080 |
se->opaque = opaque; |
1081 |
se->next = NULL;
|
1082 |
|
1083 |
/* add at the end of list */
|
1084 |
pse = &first_se; |
1085 |
while (*pse != NULL) |
1086 |
pse = &(*pse)->next; |
1087 |
*pse = se; |
1088 |
return 0; |
1089 |
} |
1090 |
|
1091 |
#define QEMU_VM_FILE_MAGIC 0x5145564d |
1092 |
#define QEMU_VM_FILE_VERSION 0x00000001 |
1093 |
|
1094 |
int qemu_savevm(const char *filename) |
1095 |
{ |
1096 |
SaveStateEntry *se; |
1097 |
QEMUFile *f; |
1098 |
int len, len_pos, cur_pos, saved_vm_running, ret;
|
1099 |
|
1100 |
saved_vm_running = vm_running; |
1101 |
vm_stop(0);
|
1102 |
|
1103 |
f = fopen(filename, "wb");
|
1104 |
if (!f) {
|
1105 |
ret = -1;
|
1106 |
goto the_end;
|
1107 |
} |
1108 |
|
1109 |
qemu_put_be32(f, QEMU_VM_FILE_MAGIC); |
1110 |
qemu_put_be32(f, QEMU_VM_FILE_VERSION); |
1111 |
|
1112 |
for(se = first_se; se != NULL; se = se->next) { |
1113 |
/* ID string */
|
1114 |
len = strlen(se->idstr); |
1115 |
qemu_put_byte(f, len); |
1116 |
qemu_put_buffer(f, se->idstr, len); |
1117 |
|
1118 |
qemu_put_be32(f, se->instance_id); |
1119 |
qemu_put_be32(f, se->version_id); |
1120 |
|
1121 |
/* record size: filled later */
|
1122 |
len_pos = ftell(f); |
1123 |
qemu_put_be32(f, 0);
|
1124 |
|
1125 |
se->save_state(f, se->opaque); |
1126 |
|
1127 |
/* fill record size */
|
1128 |
cur_pos = ftell(f); |
1129 |
len = ftell(f) - len_pos - 4;
|
1130 |
fseek(f, len_pos, SEEK_SET); |
1131 |
qemu_put_be32(f, len); |
1132 |
fseek(f, cur_pos, SEEK_SET); |
1133 |
} |
1134 |
|
1135 |
fclose(f); |
1136 |
ret = 0;
|
1137 |
the_end:
|
1138 |
if (saved_vm_running)
|
1139 |
vm_start(); |
1140 |
return ret;
|
1141 |
} |
1142 |
|
1143 |
static SaveStateEntry *find_se(const char *idstr, int instance_id) |
1144 |
{ |
1145 |
SaveStateEntry *se; |
1146 |
|
1147 |
for(se = first_se; se != NULL; se = se->next) { |
1148 |
if (!strcmp(se->idstr, idstr) &&
|
1149 |
instance_id == se->instance_id) |
1150 |
return se;
|
1151 |
} |
1152 |
return NULL; |
1153 |
} |
1154 |
|
1155 |
int qemu_loadvm(const char *filename) |
1156 |
{ |
1157 |
SaveStateEntry *se; |
1158 |
QEMUFile *f; |
1159 |
int len, cur_pos, ret, instance_id, record_len, version_id;
|
1160 |
int saved_vm_running;
|
1161 |
unsigned int v; |
1162 |
char idstr[256]; |
1163 |
|
1164 |
saved_vm_running = vm_running; |
1165 |
vm_stop(0);
|
1166 |
|
1167 |
f = fopen(filename, "rb");
|
1168 |
if (!f) {
|
1169 |
ret = -1;
|
1170 |
goto the_end;
|
1171 |
} |
1172 |
|
1173 |
v = qemu_get_be32(f); |
1174 |
if (v != QEMU_VM_FILE_MAGIC)
|
1175 |
goto fail;
|
1176 |
v = qemu_get_be32(f); |
1177 |
if (v != QEMU_VM_FILE_VERSION) {
|
1178 |
fail:
|
1179 |
fclose(f); |
1180 |
ret = -1;
|
1181 |
goto the_end;
|
1182 |
} |
1183 |
for(;;) {
|
1184 |
len = qemu_get_byte(f); |
1185 |
if (feof(f))
|
1186 |
break;
|
1187 |
qemu_get_buffer(f, idstr, len); |
1188 |
idstr[len] = '\0';
|
1189 |
instance_id = qemu_get_be32(f); |
1190 |
version_id = qemu_get_be32(f); |
1191 |
record_len = qemu_get_be32(f); |
1192 |
#if 0
|
1193 |
printf("idstr=%s instance=0x%x version=%d len=%d\n",
|
1194 |
idstr, instance_id, version_id, record_len);
|
1195 |
#endif
|
1196 |
cur_pos = ftell(f); |
1197 |
se = find_se(idstr, instance_id); |
1198 |
if (!se) {
|
1199 |
fprintf(stderr, "qemu: warning: instance 0x%x of device '%s' not present in current VM\n",
|
1200 |
instance_id, idstr); |
1201 |
} else {
|
1202 |
ret = se->load_state(f, se->opaque, version_id); |
1203 |
if (ret < 0) { |
1204 |
fprintf(stderr, "qemu: warning: error while loading state for instance 0x%x of device '%s'\n",
|
1205 |
instance_id, idstr); |
1206 |
} |
1207 |
} |
1208 |
/* always seek to exact end of record */
|
1209 |
qemu_fseek(f, cur_pos + record_len, SEEK_SET); |
1210 |
} |
1211 |
fclose(f); |
1212 |
ret = 0;
|
1213 |
the_end:
|
1214 |
if (saved_vm_running)
|
1215 |
vm_start(); |
1216 |
return ret;
|
1217 |
} |
1218 |
|
1219 |
/***********************************************************/
|
1220 |
/* cpu save/restore */
|
1221 |
|
1222 |
#if defined(TARGET_I386)
|
1223 |
|
1224 |
static void cpu_put_seg(QEMUFile *f, SegmentCache *dt) |
1225 |
{ |
1226 |
qemu_put_be32(f, (uint32_t)dt->base); |
1227 |
qemu_put_be32(f, dt->limit); |
1228 |
qemu_put_be32(f, dt->flags); |
1229 |
} |
1230 |
|
1231 |
static void cpu_get_seg(QEMUFile *f, SegmentCache *dt) |
1232 |
{ |
1233 |
dt->base = (uint8_t *)qemu_get_be32(f); |
1234 |
dt->limit = qemu_get_be32(f); |
1235 |
dt->flags = qemu_get_be32(f); |
1236 |
} |
1237 |
|
1238 |
void cpu_save(QEMUFile *f, void *opaque) |
1239 |
{ |
1240 |
CPUState *env = opaque; |
1241 |
uint16_t fptag, fpus, fpuc; |
1242 |
uint32_t hflags; |
1243 |
int i;
|
1244 |
|
1245 |
for(i = 0; i < 8; i++) |
1246 |
qemu_put_be32s(f, &env->regs[i]); |
1247 |
qemu_put_be32s(f, &env->eip); |
1248 |
qemu_put_be32s(f, &env->eflags); |
1249 |
qemu_put_be32s(f, &env->eflags); |
1250 |
hflags = env->hflags; /* XXX: suppress most of the redundant hflags */
|
1251 |
qemu_put_be32s(f, &hflags); |
1252 |
|
1253 |
/* FPU */
|
1254 |
fpuc = env->fpuc; |
1255 |
fpus = (env->fpus & ~0x3800) | (env->fpstt & 0x7) << 11; |
1256 |
fptag = 0;
|
1257 |
for (i=7; i>=0; i--) { |
1258 |
fptag <<= 2;
|
1259 |
if (env->fptags[i]) {
|
1260 |
fptag |= 3;
|
1261 |
} |
1262 |
} |
1263 |
|
1264 |
qemu_put_be16s(f, &fpuc); |
1265 |
qemu_put_be16s(f, &fpus); |
1266 |
qemu_put_be16s(f, &fptag); |
1267 |
|
1268 |
for(i = 0; i < 8; i++) { |
1269 |
uint64_t mant; |
1270 |
uint16_t exp; |
1271 |
cpu_get_fp80(&mant, &exp, env->fpregs[i]); |
1272 |
qemu_put_be64(f, mant); |
1273 |
qemu_put_be16(f, exp); |
1274 |
} |
1275 |
|
1276 |
for(i = 0; i < 6; i++) |
1277 |
cpu_put_seg(f, &env->segs[i]); |
1278 |
cpu_put_seg(f, &env->ldt); |
1279 |
cpu_put_seg(f, &env->tr); |
1280 |
cpu_put_seg(f, &env->gdt); |
1281 |
cpu_put_seg(f, &env->idt); |
1282 |
|
1283 |
qemu_put_be32s(f, &env->sysenter_cs); |
1284 |
qemu_put_be32s(f, &env->sysenter_esp); |
1285 |
qemu_put_be32s(f, &env->sysenter_eip); |
1286 |
|
1287 |
qemu_put_be32s(f, &env->cr[0]);
|
1288 |
qemu_put_be32s(f, &env->cr[2]);
|
1289 |
qemu_put_be32s(f, &env->cr[3]);
|
1290 |
qemu_put_be32s(f, &env->cr[4]);
|
1291 |
|
1292 |
for(i = 0; i < 8; i++) |
1293 |
qemu_put_be32s(f, &env->dr[i]); |
1294 |
|
1295 |
/* MMU */
|
1296 |
qemu_put_be32s(f, &env->a20_mask); |
1297 |
} |
1298 |
|
1299 |
int cpu_load(QEMUFile *f, void *opaque, int version_id) |
1300 |
{ |
1301 |
CPUState *env = opaque; |
1302 |
int i;
|
1303 |
uint32_t hflags; |
1304 |
uint16_t fpus, fpuc, fptag; |
1305 |
|
1306 |
if (version_id != 1) |
1307 |
return -EINVAL;
|
1308 |
for(i = 0; i < 8; i++) |
1309 |
qemu_get_be32s(f, &env->regs[i]); |
1310 |
qemu_get_be32s(f, &env->eip); |
1311 |
qemu_get_be32s(f, &env->eflags); |
1312 |
qemu_get_be32s(f, &env->eflags); |
1313 |
qemu_get_be32s(f, &hflags); |
1314 |
|
1315 |
qemu_get_be16s(f, &fpuc); |
1316 |
qemu_get_be16s(f, &fpus); |
1317 |
qemu_get_be16s(f, &fptag); |
1318 |
|
1319 |
for(i = 0; i < 8; i++) { |
1320 |
uint64_t mant; |
1321 |
uint16_t exp; |
1322 |
mant = qemu_get_be64(f); |
1323 |
exp = qemu_get_be16(f); |
1324 |
env->fpregs[i] = cpu_set_fp80(mant, exp); |
1325 |
} |
1326 |
|
1327 |
env->fpuc = fpuc; |
1328 |
env->fpstt = (fpus >> 11) & 7; |
1329 |
env->fpus = fpus & ~0x3800;
|
1330 |
for(i = 0; i < 8; i++) { |
1331 |
env->fptags[i] = ((fptag & 3) == 3); |
1332 |
fptag >>= 2;
|
1333 |
} |
1334 |
|
1335 |
for(i = 0; i < 6; i++) |
1336 |
cpu_get_seg(f, &env->segs[i]); |
1337 |
cpu_get_seg(f, &env->ldt); |
1338 |
cpu_get_seg(f, &env->tr); |
1339 |
cpu_get_seg(f, &env->gdt); |
1340 |
cpu_get_seg(f, &env->idt); |
1341 |
|
1342 |
qemu_get_be32s(f, &env->sysenter_cs); |
1343 |
qemu_get_be32s(f, &env->sysenter_esp); |
1344 |
qemu_get_be32s(f, &env->sysenter_eip); |
1345 |
|
1346 |
qemu_get_be32s(f, &env->cr[0]);
|
1347 |
qemu_get_be32s(f, &env->cr[2]);
|
1348 |
qemu_get_be32s(f, &env->cr[3]);
|
1349 |
qemu_get_be32s(f, &env->cr[4]);
|
1350 |
|
1351 |
for(i = 0; i < 8; i++) |
1352 |
qemu_get_be32s(f, &env->dr[i]); |
1353 |
|
1354 |
/* MMU */
|
1355 |
qemu_get_be32s(f, &env->a20_mask); |
1356 |
|
1357 |
/* XXX: compute hflags from scratch, except for CPL and IIF */
|
1358 |
env->hflags = hflags; |
1359 |
tlb_flush(env, 1);
|
1360 |
return 0; |
1361 |
} |
1362 |
|
1363 |
#else
|
1364 |
|
1365 |
#warning No CPU save/restore functions
|
1366 |
|
1367 |
#endif
|
1368 |
|
1369 |
/***********************************************************/
|
1370 |
/* ram save/restore */
|
1371 |
|
1372 |
/* we just avoid storing empty pages */
|
1373 |
static void ram_put_page(QEMUFile *f, const uint8_t *buf, int len) |
1374 |
{ |
1375 |
int i, v;
|
1376 |
|
1377 |
v = buf[0];
|
1378 |
for(i = 1; i < len; i++) { |
1379 |
if (buf[i] != v)
|
1380 |
goto normal_save;
|
1381 |
} |
1382 |
qemu_put_byte(f, 1);
|
1383 |
qemu_put_byte(f, v); |
1384 |
return;
|
1385 |
normal_save:
|
1386 |
qemu_put_byte(f, 0);
|
1387 |
qemu_put_buffer(f, buf, len); |
1388 |
} |
1389 |
|
1390 |
static int ram_get_page(QEMUFile *f, uint8_t *buf, int len) |
1391 |
{ |
1392 |
int v;
|
1393 |
|
1394 |
v = qemu_get_byte(f); |
1395 |
switch(v) {
|
1396 |
case 0: |
1397 |
if (qemu_get_buffer(f, buf, len) != len)
|
1398 |
return -EIO;
|
1399 |
break;
|
1400 |
case 1: |
1401 |
v = qemu_get_byte(f); |
1402 |
memset(buf, v, len); |
1403 |
break;
|
1404 |
default:
|
1405 |
return -EINVAL;
|
1406 |
} |
1407 |
return 0; |
1408 |
} |
1409 |
|
1410 |
static void ram_save(QEMUFile *f, void *opaque) |
1411 |
{ |
1412 |
int i;
|
1413 |
qemu_put_be32(f, phys_ram_size); |
1414 |
for(i = 0; i < phys_ram_size; i+= TARGET_PAGE_SIZE) { |
1415 |
ram_put_page(f, phys_ram_base + i, TARGET_PAGE_SIZE); |
1416 |
} |
1417 |
} |
1418 |
|
1419 |
static int ram_load(QEMUFile *f, void *opaque, int version_id) |
1420 |
{ |
1421 |
int i, ret;
|
1422 |
|
1423 |
if (version_id != 1) |
1424 |
return -EINVAL;
|
1425 |
if (qemu_get_be32(f) != phys_ram_size)
|
1426 |
return -EINVAL;
|
1427 |
for(i = 0; i < phys_ram_size; i+= TARGET_PAGE_SIZE) { |
1428 |
ret = ram_get_page(f, phys_ram_base + i, TARGET_PAGE_SIZE); |
1429 |
if (ret)
|
1430 |
return ret;
|
1431 |
} |
1432 |
return 0; |
1433 |
} |
1434 |
|
1435 |
/***********************************************************/
|
1436 |
/* main execution loop */
|
1437 |
|
1438 |
void gui_update(void *opaque) |
1439 |
{ |
1440 |
display_state.dpy_refresh(&display_state); |
1441 |
qemu_mod_timer(gui_timer, GUI_REFRESH_INTERVAL + qemu_get_clock(rt_clock)); |
1442 |
} |
1443 |
|
1444 |
/* XXX: support several handlers */
|
1445 |
VMStopHandler *vm_stop_cb; |
1446 |
VMStopHandler *vm_stop_opaque; |
1447 |
|
1448 |
int qemu_add_vm_stop_handler(VMStopHandler *cb, void *opaque) |
1449 |
{ |
1450 |
vm_stop_cb = cb; |
1451 |
vm_stop_opaque = opaque; |
1452 |
return 0; |
1453 |
} |
1454 |
|
1455 |
void qemu_del_vm_stop_handler(VMStopHandler *cb, void *opaque) |
1456 |
{ |
1457 |
vm_stop_cb = NULL;
|
1458 |
} |
1459 |
|
1460 |
void vm_start(void) |
1461 |
{ |
1462 |
if (!vm_running) {
|
1463 |
cpu_enable_ticks(); |
1464 |
vm_running = 1;
|
1465 |
} |
1466 |
} |
1467 |
|
1468 |
void vm_stop(int reason) |
1469 |
{ |
1470 |
if (vm_running) {
|
1471 |
cpu_disable_ticks(); |
1472 |
vm_running = 0;
|
1473 |
if (reason != 0) { |
1474 |
if (vm_stop_cb) {
|
1475 |
vm_stop_cb(vm_stop_opaque, reason); |
1476 |
} |
1477 |
} |
1478 |
} |
1479 |
} |
1480 |
|
1481 |
int main_loop(void) |
1482 |
{ |
1483 |
#ifndef _WIN32
|
1484 |
struct pollfd ufds[MAX_IO_HANDLERS + 1], *pf; |
1485 |
IOHandlerRecord *ioh, *ioh_next; |
1486 |
uint8_t buf[4096];
|
1487 |
int n, max_size;
|
1488 |
#endif
|
1489 |
int ret, timeout;
|
1490 |
CPUState *env = global_env; |
1491 |
|
1492 |
for(;;) {
|
1493 |
if (vm_running) {
|
1494 |
ret = cpu_exec(env); |
1495 |
if (reset_requested) {
|
1496 |
ret = EXCP_INTERRUPT; |
1497 |
break;
|
1498 |
} |
1499 |
if (ret == EXCP_DEBUG) {
|
1500 |
vm_stop(EXCP_DEBUG); |
1501 |
} |
1502 |
/* if hlt instruction, we wait until the next IRQ */
|
1503 |
/* XXX: use timeout computed from timers */
|
1504 |
if (ret == EXCP_HLT)
|
1505 |
timeout = 10;
|
1506 |
else
|
1507 |
timeout = 0;
|
1508 |
} else {
|
1509 |
timeout = 10;
|
1510 |
} |
1511 |
|
1512 |
#ifndef _WIN32
|
1513 |
/* poll any events */
|
1514 |
/* XXX: separate device handlers from system ones */
|
1515 |
pf = ufds; |
1516 |
for(ioh = first_io_handler; ioh != NULL; ioh = ioh->next) { |
1517 |
if (!ioh->fd_can_read) {
|
1518 |
max_size = 0;
|
1519 |
pf->fd = ioh->fd; |
1520 |
pf->events = POLLIN; |
1521 |
ioh->ufd = pf; |
1522 |
pf++; |
1523 |
} else {
|
1524 |
max_size = ioh->fd_can_read(ioh->opaque); |
1525 |
if (max_size > 0) { |
1526 |
if (max_size > sizeof(buf)) |
1527 |
max_size = sizeof(buf);
|
1528 |
pf->fd = ioh->fd; |
1529 |
pf->events = POLLIN; |
1530 |
ioh->ufd = pf; |
1531 |
pf++; |
1532 |
} else {
|
1533 |
ioh->ufd = NULL;
|
1534 |
} |
1535 |
} |
1536 |
ioh->max_size = max_size; |
1537 |
} |
1538 |
|
1539 |
ret = poll(ufds, pf - ufds, timeout); |
1540 |
if (ret > 0) { |
1541 |
/* XXX: better handling of removal */
|
1542 |
for(ioh = first_io_handler; ioh != NULL; ioh = ioh_next) { |
1543 |
ioh_next = ioh->next; |
1544 |
pf = ioh->ufd; |
1545 |
if (pf) {
|
1546 |
if (pf->revents & POLLIN) {
|
1547 |
if (ioh->max_size == 0) { |
1548 |
/* just a read event */
|
1549 |
ioh->fd_read(ioh->opaque, NULL, 0); |
1550 |
} else {
|
1551 |
n = read(ioh->fd, buf, ioh->max_size); |
1552 |
if (n >= 0) { |
1553 |
ioh->fd_read(ioh->opaque, buf, n); |
1554 |
} else if (errno != -EAGAIN) { |
1555 |
ioh->fd_read(ioh->opaque, NULL, -errno);
|
1556 |
} |
1557 |
} |
1558 |
} |
1559 |
} |
1560 |
} |
1561 |
} |
1562 |
#endif
|
1563 |
|
1564 |
if (vm_running) {
|
1565 |
qemu_run_timers(&active_timers[QEMU_TIMER_VIRTUAL], |
1566 |
qemu_get_clock(vm_clock)); |
1567 |
|
1568 |
/* XXX: add explicit timer */
|
1569 |
SB16_run(); |
1570 |
|
1571 |
/* run dma transfers, if any */
|
1572 |
DMA_run(); |
1573 |
} |
1574 |
|
1575 |
/* real time timers */
|
1576 |
qemu_run_timers(&active_timers[QEMU_TIMER_REALTIME], |
1577 |
qemu_get_clock(rt_clock)); |
1578 |
} |
1579 |
cpu_disable_ticks(); |
1580 |
return ret;
|
1581 |
} |
1582 |
|
1583 |
void help(void) |
1584 |
{ |
1585 |
printf("QEMU PC emulator version " QEMU_VERSION ", Copyright (c) 2003 Fabrice Bellard\n" |
1586 |
"usage: %s [options] [disk_image]\n"
|
1587 |
"\n"
|
1588 |
"'disk_image' is a raw hard image image for IDE hard disk 0\n"
|
1589 |
"\n"
|
1590 |
"Standard options:\n"
|
1591 |
"-fda/-fdb file use 'file' as floppy disk 0/1 image\n"
|
1592 |
"-hda/-hdb file use 'file' as IDE hard disk 0/1 image\n"
|
1593 |
"-hdc/-hdd file use 'file' as IDE hard disk 2/3 image\n"
|
1594 |
"-cdrom file use 'file' as IDE cdrom image (cdrom is ide1 master)\n"
|
1595 |
"-boot [a|b|c|d] boot on floppy (a, b), hard disk (c) or CD-ROM (d)\n"
|
1596 |
"-snapshot write to temporary files instead of disk image files\n"
|
1597 |
"-m megs set virtual RAM size to megs MB\n"
|
1598 |
"-nographic disable graphical output and redirect serial I/Os to console\n"
|
1599 |
"\n"
|
1600 |
"Network options:\n"
|
1601 |
"-n script set network init script [default=%s]\n"
|
1602 |
"-nics n simulate 'n' network interfaces [default=1]\n"
|
1603 |
"-tun-fd fd0[,...] use these fds as already opened tap/tun interfaces\n"
|
1604 |
"\n"
|
1605 |
"Linux boot specific:\n"
|
1606 |
"-kernel bzImage use 'bzImage' as kernel image\n"
|
1607 |
"-append cmdline use 'cmdline' as kernel command line\n"
|
1608 |
"-initrd file use 'file' as initial ram disk\n"
|
1609 |
"\n"
|
1610 |
"Debug/Expert options:\n"
|
1611 |
"-s wait gdb connection to port %d\n"
|
1612 |
"-p port change gdb connection port\n"
|
1613 |
"-d item1,... output log to %s (use -d ? for a list of log items)\n"
|
1614 |
"-hdachs c,h,s force hard disk 0 geometry (usually qemu can guess it)\n"
|
1615 |
"-L path set the directory for the BIOS and VGA BIOS\n"
|
1616 |
#ifdef USE_CODE_COPY
|
1617 |
"-no-code-copy disable code copy acceleration\n"
|
1618 |
#endif
|
1619 |
|
1620 |
"\n"
|
1621 |
"During emulation, use C-a h to get terminal commands:\n",
|
1622 |
#ifdef CONFIG_SOFTMMU
|
1623 |
"qemu",
|
1624 |
#else
|
1625 |
"qemu-fast",
|
1626 |
#endif
|
1627 |
DEFAULT_NETWORK_SCRIPT, |
1628 |
DEFAULT_GDBSTUB_PORT, |
1629 |
"/tmp/qemu.log");
|
1630 |
term_print_help(); |
1631 |
#ifndef CONFIG_SOFTMMU
|
1632 |
printf("\n"
|
1633 |
"NOTE: this version of QEMU is faster but it needs slightly patched OSes to\n"
|
1634 |
"work. Please use the 'qemu' executable to have a more accurate (but slower)\n"
|
1635 |
"PC emulation.\n");
|
1636 |
#endif
|
1637 |
exit(1);
|
1638 |
} |
1639 |
|
1640 |
struct option long_options[] = {
|
1641 |
{ "initrd", 1, NULL, 0, }, |
1642 |
{ "hda", 1, NULL, 0, }, |
1643 |
{ "hdb", 1, NULL, 0, }, |
1644 |
{ "snapshot", 0, NULL, 0, }, |
1645 |
{ "hdachs", 1, NULL, 0, }, |
1646 |
{ "nographic", 0, NULL, 0, }, |
1647 |
{ "kernel", 1, NULL, 0, }, |
1648 |
{ "append", 1, NULL, 0, }, |
1649 |
{ "tun-fd", 1, NULL, 0, }, |
1650 |
{ "hdc", 1, NULL, 0, }, |
1651 |
{ "hdd", 1, NULL, 0, }, |
1652 |
{ "cdrom", 1, NULL, 0, }, |
1653 |
{ "boot", 1, NULL, 0, }, |
1654 |
{ "fda", 1, NULL, 0, }, |
1655 |
{ "fdb", 1, NULL, 0, }, |
1656 |
{ "no-code-copy", 0, NULL, 0 }, |
1657 |
{ "nics", 1, NULL, 0 }, |
1658 |
{ NULL, 0, NULL, 0 }, |
1659 |
}; |
1660 |
|
1661 |
#ifdef CONFIG_SDL
|
1662 |
/* SDL use the pthreads and they modify sigaction. We don't
|
1663 |
want that. */
|
1664 |
#if __GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 2) |
1665 |
extern void __libc_sigaction(); |
1666 |
#define sigaction(sig, act, oact) __libc_sigaction(sig, act, oact)
|
1667 |
#else
|
1668 |
extern void __sigaction(); |
1669 |
#define sigaction(sig, act, oact) __sigaction(sig, act, oact)
|
1670 |
#endif
|
1671 |
#endif /* CONFIG_SDL */ |
1672 |
|
1673 |
#if defined (TARGET_I386) && defined(USE_CODE_COPY)
|
1674 |
|
1675 |
/* this stack is only used during signal handling */
|
1676 |
#define SIGNAL_STACK_SIZE 32768 |
1677 |
|
1678 |
static uint8_t *signal_stack;
|
1679 |
|
1680 |
#endif
|
1681 |
|
1682 |
int main(int argc, char **argv) |
1683 |
{ |
1684 |
#ifdef CONFIG_GDBSTUB
|
1685 |
int use_gdbstub, gdbstub_port;
|
1686 |
#endif
|
1687 |
int c, i, long_index, has_cdrom;
|
1688 |
int snapshot, linux_boot;
|
1689 |
CPUState *env; |
1690 |
const char *initrd_filename; |
1691 |
const char *hd_filename[MAX_DISKS], *fd_filename[MAX_FD]; |
1692 |
const char *kernel_filename, *kernel_cmdline; |
1693 |
DisplayState *ds = &display_state; |
1694 |
int cyls, heads, secs;
|
1695 |
|
1696 |
#if !defined(CONFIG_SOFTMMU)
|
1697 |
/* we never want that malloc() uses mmap() */
|
1698 |
mallopt(M_MMAP_THRESHOLD, 4096 * 1024); |
1699 |
#endif
|
1700 |
initrd_filename = NULL;
|
1701 |
for(i = 0; i < MAX_FD; i++) |
1702 |
fd_filename[i] = NULL;
|
1703 |
for(i = 0; i < MAX_DISKS; i++) |
1704 |
hd_filename[i] = NULL;
|
1705 |
ram_size = 32 * 1024 * 1024; |
1706 |
vga_ram_size = VGA_RAM_SIZE; |
1707 |
pstrcpy(network_script, sizeof(network_script), DEFAULT_NETWORK_SCRIPT);
|
1708 |
#ifdef CONFIG_GDBSTUB
|
1709 |
use_gdbstub = 0;
|
1710 |
gdbstub_port = DEFAULT_GDBSTUB_PORT; |
1711 |
#endif
|
1712 |
snapshot = 0;
|
1713 |
nographic = 0;
|
1714 |
kernel_filename = NULL;
|
1715 |
kernel_cmdline = "";
|
1716 |
has_cdrom = 1;
|
1717 |
cyls = heads = secs = 0;
|
1718 |
|
1719 |
nb_nics = 1;
|
1720 |
for(i = 0; i < MAX_NICS; i++) { |
1721 |
NetDriverState *nd = &nd_table[i]; |
1722 |
nd->fd = -1;
|
1723 |
/* init virtual mac address */
|
1724 |
nd->macaddr[0] = 0x52; |
1725 |
nd->macaddr[1] = 0x54; |
1726 |
nd->macaddr[2] = 0x00; |
1727 |
nd->macaddr[3] = 0x12; |
1728 |
nd->macaddr[4] = 0x34; |
1729 |
nd->macaddr[5] = 0x56 + i; |
1730 |
} |
1731 |
|
1732 |
for(;;) {
|
1733 |
c = getopt_long_only(argc, argv, "hm:d:n:sp:L:", long_options, &long_index);
|
1734 |
if (c == -1) |
1735 |
break;
|
1736 |
switch(c) {
|
1737 |
case 0: |
1738 |
switch(long_index) {
|
1739 |
case 0: |
1740 |
initrd_filename = optarg; |
1741 |
break;
|
1742 |
case 1: |
1743 |
hd_filename[0] = optarg;
|
1744 |
break;
|
1745 |
case 2: |
1746 |
hd_filename[1] = optarg;
|
1747 |
break;
|
1748 |
case 3: |
1749 |
snapshot = 1;
|
1750 |
break;
|
1751 |
case 4: |
1752 |
{ |
1753 |
const char *p; |
1754 |
p = optarg; |
1755 |
cyls = strtol(p, (char **)&p, 0); |
1756 |
if (*p != ',') |
1757 |
goto chs_fail;
|
1758 |
p++; |
1759 |
heads = strtol(p, (char **)&p, 0); |
1760 |
if (*p != ',') |
1761 |
goto chs_fail;
|
1762 |
p++; |
1763 |
secs = strtol(p, (char **)&p, 0); |
1764 |
if (*p != '\0') { |
1765 |
chs_fail:
|
1766 |
cyls = 0;
|
1767 |
} |
1768 |
} |
1769 |
break;
|
1770 |
case 5: |
1771 |
nographic = 1;
|
1772 |
break;
|
1773 |
case 6: |
1774 |
kernel_filename = optarg; |
1775 |
break;
|
1776 |
case 7: |
1777 |
kernel_cmdline = optarg; |
1778 |
break;
|
1779 |
case 8: |
1780 |
{ |
1781 |
const char *p; |
1782 |
int fd;
|
1783 |
p = optarg; |
1784 |
nb_nics = 0;
|
1785 |
for(;;) {
|
1786 |
fd = strtol(p, (char **)&p, 0); |
1787 |
nd_table[nb_nics].fd = fd; |
1788 |
snprintf(nd_table[nb_nics].ifname, |
1789 |
sizeof(nd_table[nb_nics].ifname),
|
1790 |
"fd%d", nb_nics);
|
1791 |
nb_nics++; |
1792 |
if (*p == ',') { |
1793 |
p++; |
1794 |
} else if (*p != '\0') { |
1795 |
fprintf(stderr, "qemu: invalid fd for network interface %d\n", nb_nics);
|
1796 |
exit(1);
|
1797 |
} else {
|
1798 |
break;
|
1799 |
} |
1800 |
} |
1801 |
} |
1802 |
break;
|
1803 |
case 9: |
1804 |
hd_filename[2] = optarg;
|
1805 |
has_cdrom = 0;
|
1806 |
break;
|
1807 |
case 10: |
1808 |
hd_filename[3] = optarg;
|
1809 |
break;
|
1810 |
case 11: |
1811 |
hd_filename[2] = optarg;
|
1812 |
has_cdrom = 1;
|
1813 |
break;
|
1814 |
case 12: |
1815 |
boot_device = optarg[0];
|
1816 |
if (boot_device != 'a' && boot_device != 'b' && |
1817 |
boot_device != 'c' && boot_device != 'd') { |
1818 |
fprintf(stderr, "qemu: invalid boot device '%c'\n", boot_device);
|
1819 |
exit(1);
|
1820 |
} |
1821 |
break;
|
1822 |
case 13: |
1823 |
fd_filename[0] = optarg;
|
1824 |
break;
|
1825 |
case 14: |
1826 |
fd_filename[1] = optarg;
|
1827 |
break;
|
1828 |
case 15: |
1829 |
code_copy_enabled = 0;
|
1830 |
break;
|
1831 |
case 16: |
1832 |
nb_nics = atoi(optarg); |
1833 |
if (nb_nics < 1 || nb_nics > MAX_NICS) { |
1834 |
fprintf(stderr, "qemu: invalid number of network interfaces\n");
|
1835 |
exit(1);
|
1836 |
} |
1837 |
break;
|
1838 |
} |
1839 |
break;
|
1840 |
case 'h': |
1841 |
help(); |
1842 |
break;
|
1843 |
case 'm': |
1844 |
ram_size = atoi(optarg) * 1024 * 1024; |
1845 |
if (ram_size <= 0) |
1846 |
help(); |
1847 |
if (ram_size > PHYS_RAM_MAX_SIZE) {
|
1848 |
fprintf(stderr, "qemu: at most %d MB RAM can be simulated\n",
|
1849 |
PHYS_RAM_MAX_SIZE / (1024 * 1024)); |
1850 |
exit(1);
|
1851 |
} |
1852 |
break;
|
1853 |
case 'd': |
1854 |
{ |
1855 |
int mask;
|
1856 |
CPULogItem *item; |
1857 |
|
1858 |
mask = cpu_str_to_log_mask(optarg); |
1859 |
if (!mask) {
|
1860 |
printf("Log items (comma separated):\n");
|
1861 |
for(item = cpu_log_items; item->mask != 0; item++) { |
1862 |
printf("%-10s %s\n", item->name, item->help);
|
1863 |
} |
1864 |
exit(1);
|
1865 |
} |
1866 |
cpu_set_log(mask); |
1867 |
} |
1868 |
break;
|
1869 |
case 'n': |
1870 |
pstrcpy(network_script, sizeof(network_script), optarg);
|
1871 |
break;
|
1872 |
#ifdef CONFIG_GDBSTUB
|
1873 |
case 's': |
1874 |
use_gdbstub = 1;
|
1875 |
break;
|
1876 |
case 'p': |
1877 |
gdbstub_port = atoi(optarg); |
1878 |
break;
|
1879 |
#endif
|
1880 |
case 'L': |
1881 |
bios_dir = optarg; |
1882 |
break;
|
1883 |
} |
1884 |
} |
1885 |
|
1886 |
if (optind < argc) {
|
1887 |
hd_filename[0] = argv[optind++];
|
1888 |
} |
1889 |
|
1890 |
linux_boot = (kernel_filename != NULL);
|
1891 |
|
1892 |
if (!linux_boot && hd_filename[0] == '\0' && hd_filename[2] == '\0' && |
1893 |
fd_filename[0] == '\0') |
1894 |
help(); |
1895 |
|
1896 |
/* boot to cd by default if no hard disk */
|
1897 |
if (hd_filename[0] == '\0' && boot_device == 'c') { |
1898 |
if (fd_filename[0] != '\0') |
1899 |
boot_device = 'a';
|
1900 |
else
|
1901 |
boot_device = 'd';
|
1902 |
} |
1903 |
|
1904 |
#if !defined(CONFIG_SOFTMMU)
|
1905 |
/* must avoid mmap() usage of glibc by setting a buffer "by hand" */
|
1906 |
{ |
1907 |
static uint8_t stdout_buf[4096]; |
1908 |
setvbuf(stdout, stdout_buf, _IOLBF, sizeof(stdout_buf));
|
1909 |
} |
1910 |
#else
|
1911 |
setvbuf(stdout, NULL, _IOLBF, 0); |
1912 |
#endif
|
1913 |
|
1914 |
/* init host network redirectors */
|
1915 |
net_init(); |
1916 |
|
1917 |
/* init the memory */
|
1918 |
phys_ram_size = ram_size + vga_ram_size; |
1919 |
|
1920 |
#ifdef CONFIG_SOFTMMU
|
1921 |
phys_ram_base = memalign(TARGET_PAGE_SIZE, phys_ram_size); |
1922 |
if (!phys_ram_base) {
|
1923 |
fprintf(stderr, "Could not allocate physical memory\n");
|
1924 |
exit(1);
|
1925 |
} |
1926 |
#else
|
1927 |
/* as we must map the same page at several addresses, we must use
|
1928 |
a fd */
|
1929 |
{ |
1930 |
const char *tmpdir; |
1931 |
|
1932 |
tmpdir = getenv("QEMU_TMPDIR");
|
1933 |
if (!tmpdir)
|
1934 |
tmpdir = "/tmp";
|
1935 |
snprintf(phys_ram_file, sizeof(phys_ram_file), "%s/vlXXXXXX", tmpdir); |
1936 |
if (mkstemp(phys_ram_file) < 0) { |
1937 |
fprintf(stderr, "Could not create temporary memory file '%s'\n",
|
1938 |
phys_ram_file); |
1939 |
exit(1);
|
1940 |
} |
1941 |
phys_ram_fd = open(phys_ram_file, O_CREAT | O_TRUNC | O_RDWR, 0600);
|
1942 |
if (phys_ram_fd < 0) { |
1943 |
fprintf(stderr, "Could not open temporary memory file '%s'\n",
|
1944 |
phys_ram_file); |
1945 |
exit(1);
|
1946 |
} |
1947 |
ftruncate(phys_ram_fd, phys_ram_size); |
1948 |
unlink(phys_ram_file); |
1949 |
phys_ram_base = mmap(get_mmap_addr(phys_ram_size), |
1950 |
phys_ram_size, |
1951 |
PROT_WRITE | PROT_READ, MAP_SHARED | MAP_FIXED, |
1952 |
phys_ram_fd, 0);
|
1953 |
if (phys_ram_base == MAP_FAILED) {
|
1954 |
fprintf(stderr, "Could not map physical memory\n");
|
1955 |
exit(1);
|
1956 |
} |
1957 |
} |
1958 |
#endif
|
1959 |
|
1960 |
/* we always create the cdrom drive, even if no disk is there */
|
1961 |
if (has_cdrom) {
|
1962 |
bs_table[2] = bdrv_new("cdrom"); |
1963 |
bdrv_set_type_hint(bs_table[2], BDRV_TYPE_CDROM);
|
1964 |
} |
1965 |
|
1966 |
/* open the virtual block devices */
|
1967 |
for(i = 0; i < MAX_DISKS; i++) { |
1968 |
if (hd_filename[i]) {
|
1969 |
if (!bs_table[i]) {
|
1970 |
char buf[64]; |
1971 |
snprintf(buf, sizeof(buf), "hd%c", i + 'a'); |
1972 |
bs_table[i] = bdrv_new(buf); |
1973 |
} |
1974 |
if (bdrv_open(bs_table[i], hd_filename[i], snapshot) < 0) { |
1975 |
fprintf(stderr, "qemu: could not open hard disk image '%s\n",
|
1976 |
hd_filename[i]); |
1977 |
exit(1);
|
1978 |
} |
1979 |
if (i == 0 && cyls != 0) |
1980 |
bdrv_set_geometry_hint(bs_table[i], cyls, heads, secs); |
1981 |
} |
1982 |
} |
1983 |
|
1984 |
/* we always create at least one floppy disk */
|
1985 |
fd_table[0] = bdrv_new("fda"); |
1986 |
bdrv_set_type_hint(fd_table[0], BDRV_TYPE_FLOPPY);
|
1987 |
|
1988 |
for(i = 0; i < MAX_FD; i++) { |
1989 |
if (fd_filename[i]) {
|
1990 |
if (!fd_table[i]) {
|
1991 |
char buf[64]; |
1992 |
snprintf(buf, sizeof(buf), "fd%c", i + 'a'); |
1993 |
fd_table[i] = bdrv_new(buf); |
1994 |
bdrv_set_type_hint(fd_table[i], BDRV_TYPE_FLOPPY); |
1995 |
} |
1996 |
if (fd_filename[i] != '\0') { |
1997 |
if (bdrv_open(fd_table[i], fd_filename[i], snapshot) < 0) { |
1998 |
fprintf(stderr, "qemu: could not open floppy disk image '%s\n",
|
1999 |
fd_filename[i]); |
2000 |
exit(1);
|
2001 |
} |
2002 |
} |
2003 |
} |
2004 |
} |
2005 |
|
2006 |
init_timers(); |
2007 |
|
2008 |
/* init CPU state */
|
2009 |
env = cpu_init(); |
2010 |
global_env = env; |
2011 |
cpu_single_env = env; |
2012 |
|
2013 |
register_savevm("timer", 0, 1, timer_save, timer_load, env); |
2014 |
register_savevm("cpu", 0, 1, cpu_save, cpu_load, env); |
2015 |
register_savevm("ram", 0, 1, ram_save, ram_load, NULL); |
2016 |
|
2017 |
init_ioports(); |
2018 |
cpu_calibrate_ticks(); |
2019 |
|
2020 |
/* terminal init */
|
2021 |
if (nographic) {
|
2022 |
dumb_display_init(ds); |
2023 |
} else {
|
2024 |
#ifdef CONFIG_SDL
|
2025 |
sdl_display_init(ds); |
2026 |
#else
|
2027 |
dumb_display_init(ds); |
2028 |
#endif
|
2029 |
} |
2030 |
|
2031 |
#if defined(TARGET_I386)
|
2032 |
pc_init(ram_size, vga_ram_size, boot_device, |
2033 |
ds, fd_filename, snapshot, |
2034 |
kernel_filename, kernel_cmdline, initrd_filename); |
2035 |
#elif defined(TARGET_PPC)
|
2036 |
ppc_init(); |
2037 |
#endif
|
2038 |
|
2039 |
/* launched after the device init so that it can display or not a
|
2040 |
banner */
|
2041 |
monitor_init(); |
2042 |
|
2043 |
/* setup cpu signal handlers for MMU / self modifying code handling */
|
2044 |
#if !defined(CONFIG_SOFTMMU)
|
2045 |
|
2046 |
#if defined (TARGET_I386) && defined(USE_CODE_COPY)
|
2047 |
{ |
2048 |
stack_t stk; |
2049 |
signal_stack = malloc(SIGNAL_STACK_SIZE); |
2050 |
stk.ss_sp = signal_stack; |
2051 |
stk.ss_size = SIGNAL_STACK_SIZE; |
2052 |
stk.ss_flags = 0;
|
2053 |
|
2054 |
if (sigaltstack(&stk, NULL) < 0) { |
2055 |
perror("sigaltstack");
|
2056 |
exit(1);
|
2057 |
} |
2058 |
} |
2059 |
#endif
|
2060 |
{ |
2061 |
struct sigaction act;
|
2062 |
|
2063 |
sigfillset(&act.sa_mask); |
2064 |
act.sa_flags = SA_SIGINFO; |
2065 |
#if defined (TARGET_I386) && defined(USE_CODE_COPY)
|
2066 |
act.sa_flags |= SA_ONSTACK; |
2067 |
#endif
|
2068 |
act.sa_sigaction = host_segv_handler; |
2069 |
sigaction(SIGSEGV, &act, NULL);
|
2070 |
sigaction(SIGBUS, &act, NULL);
|
2071 |
#if defined (TARGET_I386) && defined(USE_CODE_COPY)
|
2072 |
sigaction(SIGFPE, &act, NULL);
|
2073 |
#endif
|
2074 |
} |
2075 |
#endif
|
2076 |
|
2077 |
#ifndef _WIN32
|
2078 |
{ |
2079 |
struct sigaction act;
|
2080 |
sigfillset(&act.sa_mask); |
2081 |
act.sa_flags = 0;
|
2082 |
act.sa_handler = SIG_IGN; |
2083 |
sigaction(SIGPIPE, &act, NULL);
|
2084 |
} |
2085 |
#endif
|
2086 |
|
2087 |
gui_timer = qemu_new_timer(rt_clock, gui_update, NULL);
|
2088 |
qemu_mod_timer(gui_timer, qemu_get_clock(rt_clock)); |
2089 |
|
2090 |
#ifdef CONFIG_GDBSTUB
|
2091 |
if (use_gdbstub) {
|
2092 |
if (gdbserver_start(gdbstub_port) < 0) { |
2093 |
fprintf(stderr, "Could not open gdbserver socket on port %d\n",
|
2094 |
gdbstub_port); |
2095 |
exit(1);
|
2096 |
} else {
|
2097 |
printf("Waiting gdb connection on port %d\n", gdbstub_port);
|
2098 |
} |
2099 |
} else
|
2100 |
#endif
|
2101 |
{ |
2102 |
vm_start(); |
2103 |
} |
2104 |
term_init(); |
2105 |
main_loop(); |
2106 |
return 0; |
2107 |
} |