git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@709 c046a42c-6fe2-441c-8c8c-71466251a162
2153 lines
54 KiB
C
2153 lines
54 KiB
C
/*
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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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#ifdef CONFIG_SDL
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/* SDL use the pthreads and they modify sigaction. We don't
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want that. */
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#if __GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 2)
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extern void __libc_sigaction();
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#define sigaction(sig, act, oact) __libc_sigaction(sig, act, oact)
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#else
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extern void __sigaction();
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#define sigaction(sig, act, oact) __sigaction(sig, act, oact)
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#endif
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#endif /* CONFIG_SDL */
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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 | O_BINARY);
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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 volatile ("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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}
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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)
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{
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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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}
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}
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static int64_t get_clock(void)
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{
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#ifdef _WIN32
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struct _timeb tb;
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_ftime(&tb);
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return ((int64_t)tb.time * 1000 + (int64_t)tb.millitm) * 1000;
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#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;
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#endif
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}
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void cpu_calibrate_ticks(void)
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{
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int64_t usec, ticks;
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usec = get_clock();
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ticks = cpu_get_real_ticks();
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#ifdef _WIN32
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Sleep(50);
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#else
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usleep(50 * 1000);
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#endif
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usec = get_clock() - usec;
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ticks = cpu_get_real_ticks() - ticks;
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ticks_per_sec = (ticks * 1000000LL + (usec >> 1)) / usec;
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}
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/* compute with 96 bit intermediate result: (a*b)/c */
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uint64_t muldiv64(uint64_t a, uint32_t b, uint32_t c)
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{
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union {
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uint64_t ll;
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struct {
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#ifdef WORDS_BIGENDIAN
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uint32_t high, low;
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#else
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uint32_t low, high;
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#endif
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} l;
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} u, res;
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uint64_t rl, rh;
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u.ll = a;
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rl = (uint64_t)u.l.low * (uint64_t)b;
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rh = (uint64_t)u.l.high * (uint64_t)b;
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rh += (rl >> 32);
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res.l.high = rh / c;
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res.l.low = (((rh % c) << 32) + (rl & 0xffffffff)) / c;
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return res.ll;
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}
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#define QEMU_TIMER_REALTIME 0
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#define QEMU_TIMER_VIRTUAL 1
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struct QEMUClock {
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int type;
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/* XXX: add frequency */
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};
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struct QEMUTimer {
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QEMUClock *clock;
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int64_t expire_time;
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QEMUTimerCB *cb;
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void *opaque;
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struct QEMUTimer *next;
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};
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QEMUClock *rt_clock;
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QEMUClock *vm_clock;
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|
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static QEMUTimer *active_timers[2];
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#ifdef _WIN32
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static MMRESULT timerID;
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#else
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/* frequency of the times() clock tick */
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static int timer_freq;
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#endif
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QEMUClock *qemu_new_clock(int type)
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{
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QEMUClock *clock;
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clock = qemu_mallocz(sizeof(QEMUClock));
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if (!clock)
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return NULL;
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clock->type = type;
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return clock;
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}
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|
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QEMUTimer *qemu_new_timer(QEMUClock *clock, QEMUTimerCB *cb, void *opaque)
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{
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QEMUTimer *ts;
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ts = qemu_mallocz(sizeof(QEMUTimer));
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ts->clock = clock;
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ts->cb = cb;
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ts->opaque = opaque;
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return ts;
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}
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|
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void qemu_free_timer(QEMUTimer *ts)
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{
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qemu_free(ts);
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}
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|
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/* stop a timer, but do not dealloc it */
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void qemu_del_timer(QEMUTimer *ts)
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{
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QEMUTimer **pt, *t;
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|
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/* NOTE: this code must be signal safe because
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qemu_timer_expired() can be called from a signal. */
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pt = &active_timers[ts->clock->type];
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for(;;) {
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t = *pt;
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if (!t)
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break;
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if (t == ts) {
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*pt = t->next;
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break;
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}
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pt = &t->next;
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}
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}
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|
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/* modify the current timer so that it will be fired when current_time
|
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>= expire_time. The corresponding callback will be called. */
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|
void qemu_mod_timer(QEMUTimer *ts, int64_t expire_time)
|
|
{
|
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QEMUTimer **pt, *t;
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|
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qemu_del_timer(ts);
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|
|
/* add the timer in the sorted list */
|
|
/* NOTE: this code must be signal safe because
|
|
qemu_timer_expired() can be called from a signal. */
|
|
pt = &active_timers[ts->clock->type];
|
|
for(;;) {
|
|
t = *pt;
|
|
if (!t)
|
|
break;
|
|
if (t->expire_time > expire_time)
|
|
break;
|
|
pt = &t->next;
|
|
}
|
|
ts->expire_time = expire_time;
|
|
ts->next = *pt;
|
|
*pt = ts;
|
|
}
|
|
|
|
int qemu_timer_pending(QEMUTimer *ts)
|
|
{
|
|
QEMUTimer *t;
|
|
for(t = active_timers[ts->clock->type]; t != NULL; t = t->next) {
|
|
if (t == ts)
|
|
return 1;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static inline int qemu_timer_expired(QEMUTimer *timer_head, int64_t current_time)
|
|
{
|
|
if (!timer_head)
|
|
return 0;
|
|
return (timer_head->expire_time <= current_time);
|
|
}
|
|
|
|
static void qemu_run_timers(QEMUTimer **ptimer_head, int64_t current_time)
|
|
{
|
|
QEMUTimer *ts;
|
|
|
|
for(;;) {
|
|
ts = *ptimer_head;
|
|
if (ts->expire_time > current_time)
|
|
break;
|
|
/* remove timer from the list before calling the callback */
|
|
*ptimer_head = ts->next;
|
|
ts->next = NULL;
|
|
|
|
/* run the callback (the timer list can be modified) */
|
|
ts->cb(ts->opaque);
|
|
}
|
|
}
|
|
|
|
int64_t qemu_get_clock(QEMUClock *clock)
|
|
{
|
|
switch(clock->type) {
|
|
case QEMU_TIMER_REALTIME:
|
|
#ifdef _WIN32
|
|
return GetTickCount();
|
|
#else
|
|
/* XXX: portability among Linux hosts */
|
|
if (timer_freq == 100) {
|
|
return times(NULL) * 10;
|
|
} else {
|
|
return ((int64_t)times(NULL) * 1000) / timer_freq;
|
|
}
|
|
#endif
|
|
default:
|
|
case QEMU_TIMER_VIRTUAL:
|
|
return cpu_get_ticks();
|
|
}
|
|
}
|
|
|
|
/* save a timer */
|
|
void qemu_put_timer(QEMUFile *f, QEMUTimer *ts)
|
|
{
|
|
uint64_t expire_time;
|
|
|
|
if (qemu_timer_pending(ts)) {
|
|
expire_time = ts->expire_time;
|
|
} else {
|
|
expire_time = -1;
|
|
}
|
|
qemu_put_be64(f, expire_time);
|
|
}
|
|
|
|
void qemu_get_timer(QEMUFile *f, QEMUTimer *ts)
|
|
{
|
|
uint64_t expire_time;
|
|
|
|
expire_time = qemu_get_be64(f);
|
|
if (expire_time != -1) {
|
|
qemu_mod_timer(ts, expire_time);
|
|
} else {
|
|
qemu_del_timer(ts);
|
|
}
|
|
}
|
|
|
|
static void timer_save(QEMUFile *f, void *opaque)
|
|
{
|
|
if (cpu_ticks_enabled) {
|
|
hw_error("cannot save state if virtual timers are running");
|
|
}
|
|
qemu_put_be64s(f, &cpu_ticks_offset);
|
|
qemu_put_be64s(f, &ticks_per_sec);
|
|
}
|
|
|
|
static int timer_load(QEMUFile *f, void *opaque, int version_id)
|
|
{
|
|
if (version_id != 1)
|
|
return -EINVAL;
|
|
if (cpu_ticks_enabled) {
|
|
return -EINVAL;
|
|
}
|
|
qemu_get_be64s(f, &cpu_ticks_offset);
|
|
qemu_get_be64s(f, &ticks_per_sec);
|
|
return 0;
|
|
}
|
|
|
|
#ifdef _WIN32
|
|
void CALLBACK host_alarm_handler(UINT uTimerID, UINT uMsg,
|
|
DWORD_PTR dwUser, DWORD_PTR dw1, DWORD_PTR dw2)
|
|
#else
|
|
static void host_alarm_handler(int host_signum)
|
|
#endif
|
|
{
|
|
if (qemu_timer_expired(active_timers[QEMU_TIMER_VIRTUAL],
|
|
qemu_get_clock(vm_clock)) ||
|
|
qemu_timer_expired(active_timers[QEMU_TIMER_REALTIME],
|
|
qemu_get_clock(rt_clock))) {
|
|
/* stop the cpu because a timer occured */
|
|
cpu_interrupt(global_env, CPU_INTERRUPT_EXIT);
|
|
}
|
|
}
|
|
|
|
static void init_timers(void)
|
|
{
|
|
rt_clock = qemu_new_clock(QEMU_TIMER_REALTIME);
|
|
vm_clock = qemu_new_clock(QEMU_TIMER_VIRTUAL);
|
|
|
|
#ifdef _WIN32
|
|
{
|
|
int count=0;
|
|
timerID = timeSetEvent(10, // interval (ms)
|
|
0, // resolution
|
|
host_alarm_handler, // function
|
|
(DWORD)&count, // user parameter
|
|
TIME_PERIODIC | TIME_CALLBACK_FUNCTION);
|
|
if( !timerID ) {
|
|
perror("failed timer alarm");
|
|
exit(1);
|
|
}
|
|
}
|
|
pit_min_timer_count = ((uint64_t)10000 * PIT_FREQ) / 1000000;
|
|
#else
|
|
{
|
|
struct sigaction act;
|
|
struct itimerval itv;
|
|
|
|
/* get times() syscall frequency */
|
|
timer_freq = sysconf(_SC_CLK_TCK);
|
|
|
|
/* timer signal */
|
|
sigfillset(&act.sa_mask);
|
|
act.sa_flags = 0;
|
|
#if defined (TARGET_I386) && defined(USE_CODE_COPY)
|
|
act.sa_flags |= SA_ONSTACK;
|
|
#endif
|
|
act.sa_handler = host_alarm_handler;
|
|
sigaction(SIGALRM, &act, NULL);
|
|
|
|
itv.it_interval.tv_sec = 0;
|
|
itv.it_interval.tv_usec = 1000;
|
|
itv.it_value.tv_sec = 0;
|
|
itv.it_value.tv_usec = 10 * 1000;
|
|
setitimer(ITIMER_REAL, &itv, NULL);
|
|
/* we probe the tick duration of the kernel to inform the user if
|
|
the emulated kernel requested a too high timer frequency */
|
|
getitimer(ITIMER_REAL, &itv);
|
|
pit_min_timer_count = ((uint64_t)itv.it_interval.tv_usec * PIT_FREQ) /
|
|
1000000;
|
|
}
|
|
#endif
|
|
}
|
|
|
|
void quit_timers(void)
|
|
{
|
|
#ifdef _WIN32
|
|
timeKillEvent(timerID);
|
|
#endif
|
|
}
|
|
|
|
/***********************************************************/
|
|
/* serial device */
|
|
|
|
#ifdef _WIN32
|
|
|
|
int serial_open_device(void)
|
|
{
|
|
return -1;
|
|
}
|
|
|
|
#else
|
|
|
|
int serial_open_device(void)
|
|
{
|
|
char slave_name[1024];
|
|
int master_fd, slave_fd;
|
|
|
|
if (serial_console == NULL && nographic) {
|
|
/* use console for serial port */
|
|
return 0;
|
|
} else {
|
|
if (openpty(&master_fd, &slave_fd, slave_name, NULL, NULL) < 0) {
|
|
fprintf(stderr, "warning: could not create pseudo terminal for serial port\n");
|
|
return -1;
|
|
}
|
|
fprintf(stderr, "Serial port redirected to %s\n", slave_name);
|
|
return master_fd;
|
|
}
|
|
}
|
|
|
|
#endif
|
|
|
|
/***********************************************************/
|
|
/* Linux network device redirector */
|
|
|
|
#ifdef _WIN32
|
|
|
|
static int net_init(void)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
void net_send_packet(NetDriverState *nd, const uint8_t *buf, int size)
|
|
{
|
|
}
|
|
|
|
#else
|
|
|
|
static int tun_open(char *ifname, int ifname_size)
|
|
{
|
|
struct ifreq ifr;
|
|
int fd, ret;
|
|
|
|
fd = open("/dev/net/tun", O_RDWR);
|
|
if (fd < 0) {
|
|
fprintf(stderr, "warning: could not open /dev/net/tun: no virtual network emulation\n");
|
|
return -1;
|
|
}
|
|
memset(&ifr, 0, sizeof(ifr));
|
|
ifr.ifr_flags = IFF_TAP | IFF_NO_PI;
|
|
pstrcpy(ifr.ifr_name, IFNAMSIZ, "tun%d");
|
|
ret = ioctl(fd, TUNSETIFF, (void *) &ifr);
|
|
if (ret != 0) {
|
|
fprintf(stderr, "warning: could not configure /dev/net/tun: no virtual network emulation\n");
|
|
close(fd);
|
|
return -1;
|
|
}
|
|
printf("Connected to host network interface: %s\n", ifr.ifr_name);
|
|
pstrcpy(ifname, ifname_size, ifr.ifr_name);
|
|
fcntl(fd, F_SETFL, O_NONBLOCK);
|
|
return fd;
|
|
}
|
|
|
|
static int net_init(void)
|
|
{
|
|
int pid, status, launch_script, i;
|
|
NetDriverState *nd;
|
|
char *args[MAX_NICS + 2];
|
|
char **parg;
|
|
|
|
launch_script = 0;
|
|
for(i = 0; i < nb_nics; i++) {
|
|
nd = &nd_table[i];
|
|
if (nd->fd < 0) {
|
|
nd->fd = tun_open(nd->ifname, sizeof(nd->ifname));
|
|
if (nd->fd >= 0)
|
|
launch_script = 1;
|
|
}
|
|
}
|
|
|
|
if (launch_script) {
|
|
/* try to launch network init script */
|
|
pid = fork();
|
|
if (pid >= 0) {
|
|
if (pid == 0) {
|
|
parg = args;
|
|
*parg++ = network_script;
|
|
for(i = 0; i < nb_nics; i++) {
|
|
nd = &nd_table[i];
|
|
if (nd->fd >= 0) {
|
|
*parg++ = nd->ifname;
|
|
}
|
|
}
|
|
*parg++ = NULL;
|
|
execv(network_script, args);
|
|
exit(1);
|
|
}
|
|
while (waitpid(pid, &status, 0) != pid);
|
|
if (!WIFEXITED(status) ||
|
|
WEXITSTATUS(status) != 0) {
|
|
fprintf(stderr, "%s: could not launch network script\n",
|
|
network_script);
|
|
}
|
|
}
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
void net_send_packet(NetDriverState *nd, const uint8_t *buf, int size)
|
|
{
|
|
#ifdef DEBUG_NE2000
|
|
printf("NE2000: sending packet size=%d\n", size);
|
|
#endif
|
|
write(nd->fd, buf, size);
|
|
}
|
|
|
|
#endif
|
|
|
|
/***********************************************************/
|
|
/* dumb display */
|
|
|
|
#ifdef _WIN32
|
|
|
|
static void term_exit(void)
|
|
{
|
|
}
|
|
|
|
static void term_init(void)
|
|
{
|
|
}
|
|
|
|
#else
|
|
|
|
/* init terminal so that we can grab keys */
|
|
static struct termios oldtty;
|
|
|
|
static void term_exit(void)
|
|
{
|
|
tcsetattr (0, TCSANOW, &oldtty);
|
|
}
|
|
|
|
static void term_init(void)
|
|
{
|
|
struct termios tty;
|
|
|
|
tcgetattr (0, &tty);
|
|
oldtty = tty;
|
|
|
|
tty.c_iflag &= ~(IGNBRK|BRKINT|PARMRK|ISTRIP
|
|
|INLCR|IGNCR|ICRNL|IXON);
|
|
tty.c_oflag |= OPOST;
|
|
tty.c_lflag &= ~(ECHO|ECHONL|ICANON|IEXTEN);
|
|
/* if graphical mode, we allow Ctrl-C handling */
|
|
if (nographic)
|
|
tty.c_lflag &= ~ISIG;
|
|
tty.c_cflag &= ~(CSIZE|PARENB);
|
|
tty.c_cflag |= CS8;
|
|
tty.c_cc[VMIN] = 1;
|
|
tty.c_cc[VTIME] = 0;
|
|
|
|
tcsetattr (0, TCSANOW, &tty);
|
|
|
|
atexit(term_exit);
|
|
|
|
fcntl(0, F_SETFL, O_NONBLOCK);
|
|
}
|
|
|
|
#endif
|
|
|
|
static void dumb_update(DisplayState *ds, int x, int y, int w, int h)
|
|
{
|
|
}
|
|
|
|
static void dumb_resize(DisplayState *ds, int w, int h)
|
|
{
|
|
}
|
|
|
|
static void dumb_refresh(DisplayState *ds)
|
|
{
|
|
vga_update_display();
|
|
}
|
|
|
|
void dumb_display_init(DisplayState *ds)
|
|
{
|
|
ds->data = NULL;
|
|
ds->linesize = 0;
|
|
ds->depth = 0;
|
|
ds->dpy_update = dumb_update;
|
|
ds->dpy_resize = dumb_resize;
|
|
ds->dpy_refresh = dumb_refresh;
|
|
}
|
|
|
|
#if !defined(CONFIG_SOFTMMU)
|
|
/***********************************************************/
|
|
/* cpu signal handler */
|
|
static void host_segv_handler(int host_signum, siginfo_t *info,
|
|
void *puc)
|
|
{
|
|
if (cpu_signal_handler(host_signum, info, puc))
|
|
return;
|
|
term_exit();
|
|
abort();
|
|
}
|
|
#endif
|
|
|
|
/***********************************************************/
|
|
/* I/O handling */
|
|
|
|
#define MAX_IO_HANDLERS 64
|
|
|
|
typedef struct IOHandlerRecord {
|
|
int fd;
|
|
IOCanRWHandler *fd_can_read;
|
|
IOReadHandler *fd_read;
|
|
void *opaque;
|
|
/* temporary data */
|
|
struct pollfd *ufd;
|
|
int max_size;
|
|
struct IOHandlerRecord *next;
|
|
} IOHandlerRecord;
|
|
|
|
static IOHandlerRecord *first_io_handler;
|
|
|
|
int qemu_add_fd_read_handler(int fd, IOCanRWHandler *fd_can_read,
|
|
IOReadHandler *fd_read, void *opaque)
|
|
{
|
|
IOHandlerRecord *ioh;
|
|
|
|
ioh = qemu_mallocz(sizeof(IOHandlerRecord));
|
|
if (!ioh)
|
|
return -1;
|
|
ioh->fd = fd;
|
|
ioh->fd_can_read = fd_can_read;
|
|
ioh->fd_read = fd_read;
|
|
ioh->opaque = opaque;
|
|
ioh->next = first_io_handler;
|
|
first_io_handler = ioh;
|
|
return 0;
|
|
}
|
|
|
|
void qemu_del_fd_read_handler(int fd)
|
|
{
|
|
IOHandlerRecord **pioh, *ioh;
|
|
|
|
pioh = &first_io_handler;
|
|
for(;;) {
|
|
ioh = *pioh;
|
|
if (ioh == NULL)
|
|
break;
|
|
if (ioh->fd == fd) {
|
|
*pioh = ioh->next;
|
|
break;
|
|
}
|
|
pioh = &ioh->next;
|
|
}
|
|
}
|
|
|
|
/***********************************************************/
|
|
/* savevm/loadvm support */
|
|
|
|
void qemu_put_buffer(QEMUFile *f, const uint8_t *buf, int size)
|
|
{
|
|
fwrite(buf, 1, size, f);
|
|
}
|
|
|
|
void qemu_put_byte(QEMUFile *f, int v)
|
|
{
|
|
fputc(v, f);
|
|
}
|
|
|
|
void qemu_put_be16(QEMUFile *f, unsigned int v)
|
|
{
|
|
qemu_put_byte(f, v >> 8);
|
|
qemu_put_byte(f, v);
|
|
}
|
|
|
|
void qemu_put_be32(QEMUFile *f, unsigned int v)
|
|
{
|
|
qemu_put_byte(f, v >> 24);
|
|
qemu_put_byte(f, v >> 16);
|
|
qemu_put_byte(f, v >> 8);
|
|
qemu_put_byte(f, v);
|
|
}
|
|
|
|
void qemu_put_be64(QEMUFile *f, uint64_t v)
|
|
{
|
|
qemu_put_be32(f, v >> 32);
|
|
qemu_put_be32(f, v);
|
|
}
|
|
|
|
int qemu_get_buffer(QEMUFile *f, uint8_t *buf, int size)
|
|
{
|
|
return fread(buf, 1, size, f);
|
|
}
|
|
|
|
int qemu_get_byte(QEMUFile *f)
|
|
{
|
|
int v;
|
|
v = fgetc(f);
|
|
if (v == EOF)
|
|
return 0;
|
|
else
|
|
return v;
|
|
}
|
|
|
|
unsigned int qemu_get_be16(QEMUFile *f)
|
|
{
|
|
unsigned int v;
|
|
v = qemu_get_byte(f) << 8;
|
|
v |= qemu_get_byte(f);
|
|
return v;
|
|
}
|
|
|
|
unsigned int qemu_get_be32(QEMUFile *f)
|
|
{
|
|
unsigned int v;
|
|
v = qemu_get_byte(f) << 24;
|
|
v |= qemu_get_byte(f) << 16;
|
|
v |= qemu_get_byte(f) << 8;
|
|
v |= qemu_get_byte(f);
|
|
return v;
|
|
}
|
|
|
|
uint64_t qemu_get_be64(QEMUFile *f)
|
|
{
|
|
uint64_t v;
|
|
v = (uint64_t)qemu_get_be32(f) << 32;
|
|
v |= qemu_get_be32(f);
|
|
return v;
|
|
}
|
|
|
|
int64_t qemu_ftell(QEMUFile *f)
|
|
{
|
|
return ftell(f);
|
|
}
|
|
|
|
int64_t qemu_fseek(QEMUFile *f, int64_t pos, int whence)
|
|
{
|
|
if (fseek(f, pos, whence) < 0)
|
|
return -1;
|
|
return ftell(f);
|
|
}
|
|
|
|
typedef struct SaveStateEntry {
|
|
char idstr[256];
|
|
int instance_id;
|
|
int version_id;
|
|
SaveStateHandler *save_state;
|
|
LoadStateHandler *load_state;
|
|
void *opaque;
|
|
struct SaveStateEntry *next;
|
|
} SaveStateEntry;
|
|
|
|
static SaveStateEntry *first_se;
|
|
|
|
int register_savevm(const char *idstr,
|
|
int instance_id,
|
|
int version_id,
|
|
SaveStateHandler *save_state,
|
|
LoadStateHandler *load_state,
|
|
void *opaque)
|
|
{
|
|
SaveStateEntry *se, **pse;
|
|
|
|
se = qemu_malloc(sizeof(SaveStateEntry));
|
|
if (!se)
|
|
return -1;
|
|
pstrcpy(se->idstr, sizeof(se->idstr), idstr);
|
|
se->instance_id = instance_id;
|
|
se->version_id = version_id;
|
|
se->save_state = save_state;
|
|
se->load_state = load_state;
|
|
se->opaque = opaque;
|
|
se->next = NULL;
|
|
|
|
/* add at the end of list */
|
|
pse = &first_se;
|
|
while (*pse != NULL)
|
|
pse = &(*pse)->next;
|
|
*pse = se;
|
|
return 0;
|
|
}
|
|
|
|
#define QEMU_VM_FILE_MAGIC 0x5145564d
|
|
#define QEMU_VM_FILE_VERSION 0x00000001
|
|
|
|
int qemu_savevm(const char *filename)
|
|
{
|
|
SaveStateEntry *se;
|
|
QEMUFile *f;
|
|
int len, len_pos, cur_pos, saved_vm_running, ret;
|
|
|
|
saved_vm_running = vm_running;
|
|
vm_stop(0);
|
|
|
|
f = fopen(filename, "wb");
|
|
if (!f) {
|
|
ret = -1;
|
|
goto the_end;
|
|
}
|
|
|
|
qemu_put_be32(f, QEMU_VM_FILE_MAGIC);
|
|
qemu_put_be32(f, QEMU_VM_FILE_VERSION);
|
|
|
|
for(se = first_se; se != NULL; se = se->next) {
|
|
/* ID string */
|
|
len = strlen(se->idstr);
|
|
qemu_put_byte(f, len);
|
|
qemu_put_buffer(f, se->idstr, len);
|
|
|
|
qemu_put_be32(f, se->instance_id);
|
|
qemu_put_be32(f, se->version_id);
|
|
|
|
/* record size: filled later */
|
|
len_pos = ftell(f);
|
|
qemu_put_be32(f, 0);
|
|
|
|
se->save_state(f, se->opaque);
|
|
|
|
/* fill record size */
|
|
cur_pos = ftell(f);
|
|
len = ftell(f) - len_pos - 4;
|
|
fseek(f, len_pos, SEEK_SET);
|
|
qemu_put_be32(f, len);
|
|
fseek(f, cur_pos, SEEK_SET);
|
|
}
|
|
|
|
fclose(f);
|
|
ret = 0;
|
|
the_end:
|
|
if (saved_vm_running)
|
|
vm_start();
|
|
return ret;
|
|
}
|
|
|
|
static SaveStateEntry *find_se(const char *idstr, int instance_id)
|
|
{
|
|
SaveStateEntry *se;
|
|
|
|
for(se = first_se; se != NULL; se = se->next) {
|
|
if (!strcmp(se->idstr, idstr) &&
|
|
instance_id == se->instance_id)
|
|
return se;
|
|
}
|
|
return NULL;
|
|
}
|
|
|
|
int qemu_loadvm(const char *filename)
|
|
{
|
|
SaveStateEntry *se;
|
|
QEMUFile *f;
|
|
int len, cur_pos, ret, instance_id, record_len, version_id;
|
|
int saved_vm_running;
|
|
unsigned int v;
|
|
char idstr[256];
|
|
|
|
saved_vm_running = vm_running;
|
|
vm_stop(0);
|
|
|
|
f = fopen(filename, "rb");
|
|
if (!f) {
|
|
ret = -1;
|
|
goto the_end;
|
|
}
|
|
|
|
v = qemu_get_be32(f);
|
|
if (v != QEMU_VM_FILE_MAGIC)
|
|
goto fail;
|
|
v = qemu_get_be32(f);
|
|
if (v != QEMU_VM_FILE_VERSION) {
|
|
fail:
|
|
fclose(f);
|
|
ret = -1;
|
|
goto the_end;
|
|
}
|
|
for(;;) {
|
|
len = qemu_get_byte(f);
|
|
if (feof(f))
|
|
break;
|
|
qemu_get_buffer(f, idstr, len);
|
|
idstr[len] = '\0';
|
|
instance_id = qemu_get_be32(f);
|
|
version_id = qemu_get_be32(f);
|
|
record_len = qemu_get_be32(f);
|
|
#if 0
|
|
printf("idstr=%s instance=0x%x version=%d len=%d\n",
|
|
idstr, instance_id, version_id, record_len);
|
|
#endif
|
|
cur_pos = ftell(f);
|
|
se = find_se(idstr, instance_id);
|
|
if (!se) {
|
|
fprintf(stderr, "qemu: warning: instance 0x%x of device '%s' not present in current VM\n",
|
|
instance_id, idstr);
|
|
} else {
|
|
ret = se->load_state(f, se->opaque, version_id);
|
|
if (ret < 0) {
|
|
fprintf(stderr, "qemu: warning: error while loading state for instance 0x%x of device '%s'\n",
|
|
instance_id, idstr);
|
|
}
|
|
}
|
|
/* always seek to exact end of record */
|
|
qemu_fseek(f, cur_pos + record_len, SEEK_SET);
|
|
}
|
|
fclose(f);
|
|
ret = 0;
|
|
the_end:
|
|
if (saved_vm_running)
|
|
vm_start();
|
|
return ret;
|
|
}
|
|
|
|
/***********************************************************/
|
|
/* cpu save/restore */
|
|
|
|
#if defined(TARGET_I386)
|
|
|
|
static void cpu_put_seg(QEMUFile *f, SegmentCache *dt)
|
|
{
|
|
qemu_put_be32(f, (uint32_t)dt->base);
|
|
qemu_put_be32(f, dt->limit);
|
|
qemu_put_be32(f, dt->flags);
|
|
}
|
|
|
|
static void cpu_get_seg(QEMUFile *f, SegmentCache *dt)
|
|
{
|
|
dt->base = (uint8_t *)qemu_get_be32(f);
|
|
dt->limit = qemu_get_be32(f);
|
|
dt->flags = qemu_get_be32(f);
|
|
}
|
|
|
|
void cpu_save(QEMUFile *f, void *opaque)
|
|
{
|
|
CPUState *env = opaque;
|
|
uint16_t fptag, fpus, fpuc;
|
|
uint32_t hflags;
|
|
int i;
|
|
|
|
for(i = 0; i < 8; i++)
|
|
qemu_put_be32s(f, &env->regs[i]);
|
|
qemu_put_be32s(f, &env->eip);
|
|
qemu_put_be32s(f, &env->eflags);
|
|
qemu_put_be32s(f, &env->eflags);
|
|
hflags = env->hflags; /* XXX: suppress most of the redundant hflags */
|
|
qemu_put_be32s(f, &hflags);
|
|
|
|
/* FPU */
|
|
fpuc = env->fpuc;
|
|
fpus = (env->fpus & ~0x3800) | (env->fpstt & 0x7) << 11;
|
|
fptag = 0;
|
|
for (i=7; i>=0; i--) {
|
|
fptag <<= 2;
|
|
if (env->fptags[i]) {
|
|
fptag |= 3;
|
|
}
|
|
}
|
|
|
|
qemu_put_be16s(f, &fpuc);
|
|
qemu_put_be16s(f, &fpus);
|
|
qemu_put_be16s(f, &fptag);
|
|
|
|
for(i = 0; i < 8; i++) {
|
|
uint64_t mant;
|
|
uint16_t exp;
|
|
cpu_get_fp80(&mant, &exp, env->fpregs[i]);
|
|
qemu_put_be64(f, mant);
|
|
qemu_put_be16(f, exp);
|
|
}
|
|
|
|
for(i = 0; i < 6; i++)
|
|
cpu_put_seg(f, &env->segs[i]);
|
|
cpu_put_seg(f, &env->ldt);
|
|
cpu_put_seg(f, &env->tr);
|
|
cpu_put_seg(f, &env->gdt);
|
|
cpu_put_seg(f, &env->idt);
|
|
|
|
qemu_put_be32s(f, &env->sysenter_cs);
|
|
qemu_put_be32s(f, &env->sysenter_esp);
|
|
qemu_put_be32s(f, &env->sysenter_eip);
|
|
|
|
qemu_put_be32s(f, &env->cr[0]);
|
|
qemu_put_be32s(f, &env->cr[2]);
|
|
qemu_put_be32s(f, &env->cr[3]);
|
|
qemu_put_be32s(f, &env->cr[4]);
|
|
|
|
for(i = 0; i < 8; i++)
|
|
qemu_put_be32s(f, &env->dr[i]);
|
|
|
|
/* MMU */
|
|
qemu_put_be32s(f, &env->a20_mask);
|
|
}
|
|
|
|
int cpu_load(QEMUFile *f, void *opaque, int version_id)
|
|
{
|
|
CPUState *env = opaque;
|
|
int i;
|
|
uint32_t hflags;
|
|
uint16_t fpus, fpuc, fptag;
|
|
|
|
if (version_id != 1)
|
|
return -EINVAL;
|
|
for(i = 0; i < 8; i++)
|
|
qemu_get_be32s(f, &env->regs[i]);
|
|
qemu_get_be32s(f, &env->eip);
|
|
qemu_get_be32s(f, &env->eflags);
|
|
qemu_get_be32s(f, &env->eflags);
|
|
qemu_get_be32s(f, &hflags);
|
|
|
|
qemu_get_be16s(f, &fpuc);
|
|
qemu_get_be16s(f, &fpus);
|
|
qemu_get_be16s(f, &fptag);
|
|
|
|
for(i = 0; i < 8; i++) {
|
|
uint64_t mant;
|
|
uint16_t exp;
|
|
mant = qemu_get_be64(f);
|
|
exp = qemu_get_be16(f);
|
|
env->fpregs[i] = cpu_set_fp80(mant, exp);
|
|
}
|
|
|
|
env->fpuc = fpuc;
|
|
env->fpstt = (fpus >> 11) & 7;
|
|
env->fpus = fpus & ~0x3800;
|
|
for(i = 0; i < 8; i++) {
|
|
env->fptags[i] = ((fptag & 3) == 3);
|
|
fptag >>= 2;
|
|
}
|
|
|
|
for(i = 0; i < 6; i++)
|
|
cpu_get_seg(f, &env->segs[i]);
|
|
cpu_get_seg(f, &env->ldt);
|
|
cpu_get_seg(f, &env->tr);
|
|
cpu_get_seg(f, &env->gdt);
|
|
cpu_get_seg(f, &env->idt);
|
|
|
|
qemu_get_be32s(f, &env->sysenter_cs);
|
|
qemu_get_be32s(f, &env->sysenter_esp);
|
|
qemu_get_be32s(f, &env->sysenter_eip);
|
|
|
|
qemu_get_be32s(f, &env->cr[0]);
|
|
qemu_get_be32s(f, &env->cr[2]);
|
|
qemu_get_be32s(f, &env->cr[3]);
|
|
qemu_get_be32s(f, &env->cr[4]);
|
|
|
|
for(i = 0; i < 8; i++)
|
|
qemu_get_be32s(f, &env->dr[i]);
|
|
|
|
/* MMU */
|
|
qemu_get_be32s(f, &env->a20_mask);
|
|
|
|
/* XXX: compute hflags from scratch, except for CPL and IIF */
|
|
env->hflags = hflags;
|
|
tlb_flush(env, 1);
|
|
return 0;
|
|
}
|
|
|
|
#else
|
|
|
|
#warning No CPU save/restore functions
|
|
|
|
#endif
|
|
|
|
/***********************************************************/
|
|
/* ram save/restore */
|
|
|
|
/* we just avoid storing empty pages */
|
|
static void ram_put_page(QEMUFile *f, const uint8_t *buf, int len)
|
|
{
|
|
int i, v;
|
|
|
|
v = buf[0];
|
|
for(i = 1; i < len; i++) {
|
|
if (buf[i] != v)
|
|
goto normal_save;
|
|
}
|
|
qemu_put_byte(f, 1);
|
|
qemu_put_byte(f, v);
|
|
return;
|
|
normal_save:
|
|
qemu_put_byte(f, 0);
|
|
qemu_put_buffer(f, buf, len);
|
|
}
|
|
|
|
static int ram_get_page(QEMUFile *f, uint8_t *buf, int len)
|
|
{
|
|
int v;
|
|
|
|
v = qemu_get_byte(f);
|
|
switch(v) {
|
|
case 0:
|
|
if (qemu_get_buffer(f, buf, len) != len)
|
|
return -EIO;
|
|
break;
|
|
case 1:
|
|
v = qemu_get_byte(f);
|
|
memset(buf, v, len);
|
|
break;
|
|
default:
|
|
return -EINVAL;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static void ram_save(QEMUFile *f, void *opaque)
|
|
{
|
|
int i;
|
|
qemu_put_be32(f, phys_ram_size);
|
|
for(i = 0; i < phys_ram_size; i+= TARGET_PAGE_SIZE) {
|
|
ram_put_page(f, phys_ram_base + i, TARGET_PAGE_SIZE);
|
|
}
|
|
}
|
|
|
|
static int ram_load(QEMUFile *f, void *opaque, int version_id)
|
|
{
|
|
int i, ret;
|
|
|
|
if (version_id != 1)
|
|
return -EINVAL;
|
|
if (qemu_get_be32(f) != phys_ram_size)
|
|
return -EINVAL;
|
|
for(i = 0; i < phys_ram_size; i+= TARGET_PAGE_SIZE) {
|
|
ret = ram_get_page(f, phys_ram_base + i, TARGET_PAGE_SIZE);
|
|
if (ret)
|
|
return ret;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
/***********************************************************/
|
|
/* main execution loop */
|
|
|
|
void gui_update(void *opaque)
|
|
{
|
|
display_state.dpy_refresh(&display_state);
|
|
qemu_mod_timer(gui_timer, GUI_REFRESH_INTERVAL + qemu_get_clock(rt_clock));
|
|
}
|
|
|
|
/* XXX: support several handlers */
|
|
VMStopHandler *vm_stop_cb;
|
|
VMStopHandler *vm_stop_opaque;
|
|
|
|
int qemu_add_vm_stop_handler(VMStopHandler *cb, void *opaque)
|
|
{
|
|
vm_stop_cb = cb;
|
|
vm_stop_opaque = opaque;
|
|
return 0;
|
|
}
|
|
|
|
void qemu_del_vm_stop_handler(VMStopHandler *cb, void *opaque)
|
|
{
|
|
vm_stop_cb = NULL;
|
|
}
|
|
|
|
void vm_start(void)
|
|
{
|
|
if (!vm_running) {
|
|
cpu_enable_ticks();
|
|
vm_running = 1;
|
|
}
|
|
}
|
|
|
|
void vm_stop(int reason)
|
|
{
|
|
if (vm_running) {
|
|
cpu_disable_ticks();
|
|
vm_running = 0;
|
|
if (reason != 0) {
|
|
if (vm_stop_cb) {
|
|
vm_stop_cb(vm_stop_opaque, reason);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
int main_loop(void)
|
|
{
|
|
#ifndef _WIN32
|
|
struct pollfd ufds[MAX_IO_HANDLERS + 1], *pf;
|
|
IOHandlerRecord *ioh, *ioh_next;
|
|
uint8_t buf[4096];
|
|
int n, max_size;
|
|
#endif
|
|
int ret, timeout;
|
|
CPUState *env = global_env;
|
|
|
|
for(;;) {
|
|
if (vm_running) {
|
|
ret = cpu_exec(env);
|
|
if (reset_requested) {
|
|
ret = EXCP_INTERRUPT;
|
|
break;
|
|
}
|
|
if (ret == EXCP_DEBUG) {
|
|
vm_stop(EXCP_DEBUG);
|
|
}
|
|
/* if hlt instruction, we wait until the next IRQ */
|
|
/* XXX: use timeout computed from timers */
|
|
if (ret == EXCP_HLT)
|
|
timeout = 10;
|
|
else
|
|
timeout = 0;
|
|
} else {
|
|
timeout = 10;
|
|
}
|
|
|
|
#ifdef _WIN32
|
|
if (timeout > 0)
|
|
Sleep(timeout);
|
|
#else
|
|
|
|
/* poll any events */
|
|
/* XXX: separate device handlers from system ones */
|
|
pf = ufds;
|
|
for(ioh = first_io_handler; ioh != NULL; ioh = ioh->next) {
|
|
if (!ioh->fd_can_read) {
|
|
max_size = 0;
|
|
pf->fd = ioh->fd;
|
|
pf->events = POLLIN;
|
|
ioh->ufd = pf;
|
|
pf++;
|
|
} else {
|
|
max_size = ioh->fd_can_read(ioh->opaque);
|
|
if (max_size > 0) {
|
|
if (max_size > sizeof(buf))
|
|
max_size = sizeof(buf);
|
|
pf->fd = ioh->fd;
|
|
pf->events = POLLIN;
|
|
ioh->ufd = pf;
|
|
pf++;
|
|
} else {
|
|
ioh->ufd = NULL;
|
|
}
|
|
}
|
|
ioh->max_size = max_size;
|
|
}
|
|
|
|
ret = poll(ufds, pf - ufds, timeout);
|
|
if (ret > 0) {
|
|
/* XXX: better handling of removal */
|
|
for(ioh = first_io_handler; ioh != NULL; ioh = ioh_next) {
|
|
ioh_next = ioh->next;
|
|
pf = ioh->ufd;
|
|
if (pf) {
|
|
if (pf->revents & POLLIN) {
|
|
if (ioh->max_size == 0) {
|
|
/* just a read event */
|
|
ioh->fd_read(ioh->opaque, NULL, 0);
|
|
} else {
|
|
n = read(ioh->fd, buf, ioh->max_size);
|
|
if (n >= 0) {
|
|
ioh->fd_read(ioh->opaque, buf, n);
|
|
} else if (errno != -EAGAIN) {
|
|
ioh->fd_read(ioh->opaque, NULL, -errno);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
#endif
|
|
|
|
if (vm_running) {
|
|
qemu_run_timers(&active_timers[QEMU_TIMER_VIRTUAL],
|
|
qemu_get_clock(vm_clock));
|
|
|
|
/* XXX: add explicit timer */
|
|
SB16_run();
|
|
|
|
/* run dma transfers, if any */
|
|
DMA_run();
|
|
}
|
|
|
|
/* real time timers */
|
|
qemu_run_timers(&active_timers[QEMU_TIMER_REALTIME],
|
|
qemu_get_clock(rt_clock));
|
|
}
|
|
cpu_disable_ticks();
|
|
return ret;
|
|
}
|
|
|
|
void help(void)
|
|
{
|
|
printf("QEMU PC emulator version " QEMU_VERSION ", Copyright (c) 2003 Fabrice Bellard\n"
|
|
"usage: %s [options] [disk_image]\n"
|
|
"\n"
|
|
"'disk_image' is a raw hard image image for IDE hard disk 0\n"
|
|
"\n"
|
|
"Standard options:\n"
|
|
"-fda/-fdb file use 'file' as floppy disk 0/1 image\n"
|
|
"-hda/-hdb file use 'file' as IDE hard disk 0/1 image\n"
|
|
"-hdc/-hdd file use 'file' as IDE hard disk 2/3 image\n"
|
|
"-cdrom file use 'file' as IDE cdrom image (cdrom is ide1 master)\n"
|
|
"-boot [a|b|c|d] boot on floppy (a, b), hard disk (c) or CD-ROM (d)\n"
|
|
"-snapshot write to temporary files instead of disk image files\n"
|
|
"-m megs set virtual RAM size to megs MB\n"
|
|
"-nographic disable graphical output and redirect serial I/Os to console\n"
|
|
"\n"
|
|
"Network options:\n"
|
|
"-n script set network init script [default=%s]\n"
|
|
"-nics n simulate 'n' network interfaces [default=1]\n"
|
|
"-macaddr addr set the mac address of the first interface\n"
|
|
"-tun-fd fd0[,...] use these fds as already opened tap/tun interfaces\n"
|
|
"\n"
|
|
"Linux boot specific:\n"
|
|
"-kernel bzImage use 'bzImage' as kernel image\n"
|
|
"-append cmdline use 'cmdline' as kernel command line\n"
|
|
"-initrd file use 'file' as initial ram disk\n"
|
|
"\n"
|
|
"Debug/Expert options:\n"
|
|
"-s wait gdb connection to port %d\n"
|
|
"-p port change gdb connection port\n"
|
|
"-d item1,... output log to %s (use -d ? for a list of log items)\n"
|
|
"-hdachs c,h,s force hard disk 0 geometry (usually qemu can guess it)\n"
|
|
"-L path set the directory for the BIOS and VGA BIOS\n"
|
|
#ifdef USE_CODE_COPY
|
|
"-no-code-copy disable code copy acceleration\n"
|
|
#endif
|
|
|
|
"\n"
|
|
"During emulation, use C-a h to get terminal commands:\n",
|
|
#ifdef CONFIG_SOFTMMU
|
|
"qemu",
|
|
#else
|
|
"qemu-fast",
|
|
#endif
|
|
DEFAULT_NETWORK_SCRIPT,
|
|
DEFAULT_GDBSTUB_PORT,
|
|
"/tmp/qemu.log");
|
|
term_print_help();
|
|
#ifndef CONFIG_SOFTMMU
|
|
printf("\n"
|
|
"NOTE: this version of QEMU is faster but it needs slightly patched OSes to\n"
|
|
"work. Please use the 'qemu' executable to have a more accurate (but slower)\n"
|
|
"PC emulation.\n");
|
|
#endif
|
|
exit(1);
|
|
}
|
|
|
|
struct option long_options[] = {
|
|
{ "initrd", 1, NULL, 0, },
|
|
{ "hda", 1, NULL, 0, },
|
|
{ "hdb", 1, NULL, 0, },
|
|
{ "snapshot", 0, NULL, 0, },
|
|
{ "hdachs", 1, NULL, 0, },
|
|
{ "nographic", 0, NULL, 0, },
|
|
{ "kernel", 1, NULL, 0, },
|
|
{ "append", 1, NULL, 0, },
|
|
{ "tun-fd", 1, NULL, 0, },
|
|
{ "hdc", 1, NULL, 0, },
|
|
{ "hdd", 1, NULL, 0, },
|
|
{ "cdrom", 1, NULL, 0, },
|
|
{ "boot", 1, NULL, 0, },
|
|
{ "fda", 1, NULL, 0, },
|
|
{ "fdb", 1, NULL, 0, },
|
|
{ "no-code-copy", 0, NULL, 0 },
|
|
{ "nics", 1, NULL, 0 },
|
|
{ "macaddr", 1, NULL, 0 },
|
|
{ NULL, 0, NULL, 0 },
|
|
};
|
|
|
|
#if defined (TARGET_I386) && defined(USE_CODE_COPY)
|
|
|
|
/* this stack is only used during signal handling */
|
|
#define SIGNAL_STACK_SIZE 32768
|
|
|
|
static uint8_t *signal_stack;
|
|
|
|
#endif
|
|
|
|
int main(int argc, char **argv)
|
|
{
|
|
#ifdef CONFIG_GDBSTUB
|
|
int use_gdbstub, gdbstub_port;
|
|
#endif
|
|
int c, i, long_index, has_cdrom;
|
|
int snapshot, linux_boot;
|
|
CPUState *env;
|
|
const char *initrd_filename;
|
|
const char *hd_filename[MAX_DISKS], *fd_filename[MAX_FD];
|
|
const char *kernel_filename, *kernel_cmdline;
|
|
DisplayState *ds = &display_state;
|
|
int cyls, heads, secs;
|
|
uint8_t macaddr[6];
|
|
|
|
#if !defined(CONFIG_SOFTMMU)
|
|
/* we never want that malloc() uses mmap() */
|
|
mallopt(M_MMAP_THRESHOLD, 4096 * 1024);
|
|
#endif
|
|
initrd_filename = NULL;
|
|
for(i = 0; i < MAX_FD; i++)
|
|
fd_filename[i] = NULL;
|
|
for(i = 0; i < MAX_DISKS; i++)
|
|
hd_filename[i] = NULL;
|
|
ram_size = 32 * 1024 * 1024;
|
|
vga_ram_size = VGA_RAM_SIZE;
|
|
pstrcpy(network_script, sizeof(network_script), DEFAULT_NETWORK_SCRIPT);
|
|
#ifdef CONFIG_GDBSTUB
|
|
use_gdbstub = 0;
|
|
gdbstub_port = DEFAULT_GDBSTUB_PORT;
|
|
#endif
|
|
snapshot = 0;
|
|
nographic = 0;
|
|
kernel_filename = NULL;
|
|
kernel_cmdline = "";
|
|
has_cdrom = 1;
|
|
cyls = heads = secs = 0;
|
|
|
|
nb_nics = 1;
|
|
/* default mac address of the first network interface */
|
|
macaddr[0] = 0x52;
|
|
macaddr[1] = 0x54;
|
|
macaddr[2] = 0x00;
|
|
macaddr[3] = 0x12;
|
|
macaddr[4] = 0x34;
|
|
macaddr[5] = 0x56;
|
|
|
|
for(i = 0; i < MAX_NICS; i++)
|
|
nd_table[i].fd = -1;
|
|
|
|
for(;;) {
|
|
c = getopt_long_only(argc, argv, "hm:d:n:sp:L:", 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;
|
|
case 3:
|
|
snapshot = 1;
|
|
break;
|
|
case 4:
|
|
{
|
|
const char *p;
|
|
p = optarg;
|
|
cyls = strtol(p, (char **)&p, 0);
|
|
if (*p != ',')
|
|
goto chs_fail;
|
|
p++;
|
|
heads = strtol(p, (char **)&p, 0);
|
|
if (*p != ',')
|
|
goto chs_fail;
|
|
p++;
|
|
secs = strtol(p, (char **)&p, 0);
|
|
if (*p != '\0') {
|
|
chs_fail:
|
|
cyls = 0;
|
|
}
|
|
}
|
|
break;
|
|
case 5:
|
|
nographic = 1;
|
|
break;
|
|
case 6:
|
|
kernel_filename = optarg;
|
|
break;
|
|
case 7:
|
|
kernel_cmdline = optarg;
|
|
break;
|
|
case 8:
|
|
{
|
|
const char *p;
|
|
int fd;
|
|
p = optarg;
|
|
nb_nics = 0;
|
|
for(;;) {
|
|
fd = strtol(p, (char **)&p, 0);
|
|
nd_table[nb_nics].fd = fd;
|
|
snprintf(nd_table[nb_nics].ifname,
|
|
sizeof(nd_table[nb_nics].ifname),
|
|
"fd%d", nb_nics);
|
|
nb_nics++;
|
|
if (*p == ',') {
|
|
p++;
|
|
} else if (*p != '\0') {
|
|
fprintf(stderr, "qemu: invalid fd for network interface %d\n", nb_nics);
|
|
exit(1);
|
|
} else {
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
break;
|
|
case 9:
|
|
hd_filename[2] = optarg;
|
|
has_cdrom = 0;
|
|
break;
|
|
case 10:
|
|
hd_filename[3] = optarg;
|
|
break;
|
|
case 11:
|
|
hd_filename[2] = optarg;
|
|
has_cdrom = 1;
|
|
break;
|
|
case 12:
|
|
boot_device = optarg[0];
|
|
if (boot_device != 'a' && boot_device != 'b' &&
|
|
boot_device != 'c' && boot_device != 'd') {
|
|
fprintf(stderr, "qemu: invalid boot device '%c'\n", boot_device);
|
|
exit(1);
|
|
}
|
|
break;
|
|
case 13:
|
|
fd_filename[0] = optarg;
|
|
break;
|
|
case 14:
|
|
fd_filename[1] = optarg;
|
|
break;
|
|
case 15:
|
|
code_copy_enabled = 0;
|
|
break;
|
|
case 16:
|
|
nb_nics = atoi(optarg);
|
|
if (nb_nics < 1 || nb_nics > MAX_NICS) {
|
|
fprintf(stderr, "qemu: invalid number of network interfaces\n");
|
|
exit(1);
|
|
}
|
|
break;
|
|
case 17:
|
|
{
|
|
const char *p;
|
|
int i;
|
|
p = optarg;
|
|
for(i = 0; i < 6; i++) {
|
|
macaddr[i] = strtol(p, (char **)&p, 16);
|
|
if (i == 5) {
|
|
if (*p != '\0')
|
|
goto macaddr_error;
|
|
} else {
|
|
if (*p != ':') {
|
|
macaddr_error:
|
|
fprintf(stderr, "qemu: invalid syntax for ethernet address\n");
|
|
exit(1);
|
|
}
|
|
p++;
|
|
}
|
|
}
|
|
}
|
|
break;
|
|
}
|
|
break;
|
|
case 'h':
|
|
help();
|
|
break;
|
|
case 'm':
|
|
ram_size = atoi(optarg) * 1024 * 1024;
|
|
if (ram_size <= 0)
|
|
help();
|
|
if (ram_size > PHYS_RAM_MAX_SIZE) {
|
|
fprintf(stderr, "qemu: at most %d MB RAM can be simulated\n",
|
|
PHYS_RAM_MAX_SIZE / (1024 * 1024));
|
|
exit(1);
|
|
}
|
|
break;
|
|
case 'd':
|
|
{
|
|
int mask;
|
|
CPULogItem *item;
|
|
|
|
mask = cpu_str_to_log_mask(optarg);
|
|
if (!mask) {
|
|
printf("Log items (comma separated):\n");
|
|
for(item = cpu_log_items; item->mask != 0; item++) {
|
|
printf("%-10s %s\n", item->name, item->help);
|
|
}
|
|
exit(1);
|
|
}
|
|
cpu_set_log(mask);
|
|
}
|
|
break;
|
|
case 'n':
|
|
pstrcpy(network_script, sizeof(network_script), optarg);
|
|
break;
|
|
#ifdef CONFIG_GDBSTUB
|
|
case 's':
|
|
use_gdbstub = 1;
|
|
break;
|
|
case 'p':
|
|
gdbstub_port = atoi(optarg);
|
|
break;
|
|
#endif
|
|
case 'L':
|
|
bios_dir = optarg;
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (optind < argc) {
|
|
hd_filename[0] = argv[optind++];
|
|
}
|
|
|
|
linux_boot = (kernel_filename != NULL);
|
|
|
|
if (!linux_boot && hd_filename[0] == '\0' && hd_filename[2] == '\0' &&
|
|
fd_filename[0] == '\0')
|
|
help();
|
|
|
|
/* boot to cd by default if no hard disk */
|
|
if (hd_filename[0] == '\0' && boot_device == 'c') {
|
|
if (fd_filename[0] != '\0')
|
|
boot_device = 'a';
|
|
else
|
|
boot_device = 'd';
|
|
}
|
|
|
|
#if !defined(CONFIG_SOFTMMU)
|
|
/* must avoid mmap() usage of glibc by setting a buffer "by hand" */
|
|
{
|
|
static uint8_t stdout_buf[4096];
|
|
setvbuf(stdout, stdout_buf, _IOLBF, sizeof(stdout_buf));
|
|
}
|
|
#else
|
|
setvbuf(stdout, NULL, _IOLBF, 0);
|
|
#endif
|
|
|
|
/* init host network redirectors */
|
|
for(i = 0; i < MAX_NICS; i++) {
|
|
NetDriverState *nd = &nd_table[i];
|
|
/* init virtual mac address */
|
|
nd->macaddr[0] = macaddr[0];
|
|
nd->macaddr[1] = macaddr[1];
|
|
nd->macaddr[2] = macaddr[2];
|
|
nd->macaddr[3] = macaddr[3];
|
|
nd->macaddr[4] = macaddr[4];
|
|
nd->macaddr[5] = macaddr[5] + i;
|
|
}
|
|
net_init();
|
|
|
|
/* init the memory */
|
|
phys_ram_size = ram_size + vga_ram_size;
|
|
|
|
#ifdef CONFIG_SOFTMMU
|
|
phys_ram_base = memalign(TARGET_PAGE_SIZE, phys_ram_size);
|
|
if (!phys_ram_base) {
|
|
fprintf(stderr, "Could not allocate physical memory\n");
|
|
exit(1);
|
|
}
|
|
#else
|
|
/* as we must map the same page at several addresses, we must use
|
|
a fd */
|
|
{
|
|
const char *tmpdir;
|
|
|
|
tmpdir = getenv("QEMU_TMPDIR");
|
|
if (!tmpdir)
|
|
tmpdir = "/tmp";
|
|
snprintf(phys_ram_file, sizeof(phys_ram_file), "%s/vlXXXXXX", tmpdir);
|
|
if (mkstemp(phys_ram_file) < 0) {
|
|
fprintf(stderr, "Could not create temporary memory file '%s'\n",
|
|
phys_ram_file);
|
|
exit(1);
|
|
}
|
|
phys_ram_fd = open(phys_ram_file, O_CREAT | O_TRUNC | O_RDWR, 0600);
|
|
if (phys_ram_fd < 0) {
|
|
fprintf(stderr, "Could not open temporary memory file '%s'\n",
|
|
phys_ram_file);
|
|
exit(1);
|
|
}
|
|
ftruncate(phys_ram_fd, phys_ram_size);
|
|
unlink(phys_ram_file);
|
|
phys_ram_base = mmap(get_mmap_addr(phys_ram_size),
|
|
phys_ram_size,
|
|
PROT_WRITE | PROT_READ, MAP_SHARED | MAP_FIXED,
|
|
phys_ram_fd, 0);
|
|
if (phys_ram_base == MAP_FAILED) {
|
|
fprintf(stderr, "Could not map physical memory\n");
|
|
exit(1);
|
|
}
|
|
}
|
|
#endif
|
|
|
|
/* we always create the cdrom drive, even if no disk is there */
|
|
if (has_cdrom) {
|
|
bs_table[2] = bdrv_new("cdrom");
|
|
bdrv_set_type_hint(bs_table[2], BDRV_TYPE_CDROM);
|
|
}
|
|
|
|
/* open the virtual block devices */
|
|
for(i = 0; i < MAX_DISKS; i++) {
|
|
if (hd_filename[i]) {
|
|
if (!bs_table[i]) {
|
|
char buf[64];
|
|
snprintf(buf, sizeof(buf), "hd%c", i + 'a');
|
|
bs_table[i] = bdrv_new(buf);
|
|
}
|
|
if (bdrv_open(bs_table[i], hd_filename[i], snapshot) < 0) {
|
|
fprintf(stderr, "qemu: could not open hard disk image '%s\n",
|
|
hd_filename[i]);
|
|
exit(1);
|
|
}
|
|
if (i == 0 && cyls != 0)
|
|
bdrv_set_geometry_hint(bs_table[i], cyls, heads, secs);
|
|
}
|
|
}
|
|
|
|
/* we always create at least one floppy disk */
|
|
fd_table[0] = bdrv_new("fda");
|
|
bdrv_set_type_hint(fd_table[0], BDRV_TYPE_FLOPPY);
|
|
|
|
for(i = 0; i < MAX_FD; i++) {
|
|
if (fd_filename[i]) {
|
|
if (!fd_table[i]) {
|
|
char buf[64];
|
|
snprintf(buf, sizeof(buf), "fd%c", i + 'a');
|
|
fd_table[i] = bdrv_new(buf);
|
|
bdrv_set_type_hint(fd_table[i], BDRV_TYPE_FLOPPY);
|
|
}
|
|
if (fd_filename[i] != '\0') {
|
|
if (bdrv_open(fd_table[i], fd_filename[i], snapshot) < 0) {
|
|
fprintf(stderr, "qemu: could not open floppy disk image '%s\n",
|
|
fd_filename[i]);
|
|
exit(1);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
/* init CPU state */
|
|
env = cpu_init();
|
|
global_env = env;
|
|
cpu_single_env = env;
|
|
|
|
register_savevm("timer", 0, 1, timer_save, timer_load, env);
|
|
register_savevm("cpu", 0, 1, cpu_save, cpu_load, env);
|
|
register_savevm("ram", 0, 1, ram_save, ram_load, NULL);
|
|
|
|
init_ioports();
|
|
cpu_calibrate_ticks();
|
|
|
|
/* terminal init */
|
|
if (nographic) {
|
|
dumb_display_init(ds);
|
|
} else {
|
|
#ifdef CONFIG_SDL
|
|
sdl_display_init(ds);
|
|
#else
|
|
dumb_display_init(ds);
|
|
#endif
|
|
}
|
|
|
|
/* setup cpu signal handlers for MMU / self modifying code handling */
|
|
#if !defined(CONFIG_SOFTMMU)
|
|
|
|
#if defined (TARGET_I386) && defined(USE_CODE_COPY)
|
|
{
|
|
stack_t stk;
|
|
signal_stack = memalign(16, SIGNAL_STACK_SIZE);
|
|
stk.ss_sp = signal_stack;
|
|
stk.ss_size = SIGNAL_STACK_SIZE;
|
|
stk.ss_flags = 0;
|
|
|
|
if (sigaltstack(&stk, NULL) < 0) {
|
|
perror("sigaltstack");
|
|
exit(1);
|
|
}
|
|
}
|
|
#endif
|
|
{
|
|
struct sigaction act;
|
|
|
|
sigfillset(&act.sa_mask);
|
|
act.sa_flags = SA_SIGINFO;
|
|
#if defined (TARGET_I386) && defined(USE_CODE_COPY)
|
|
act.sa_flags |= SA_ONSTACK;
|
|
#endif
|
|
act.sa_sigaction = host_segv_handler;
|
|
sigaction(SIGSEGV, &act, NULL);
|
|
sigaction(SIGBUS, &act, NULL);
|
|
#if defined (TARGET_I386) && defined(USE_CODE_COPY)
|
|
sigaction(SIGFPE, &act, NULL);
|
|
#endif
|
|
}
|
|
#endif
|
|
|
|
#ifndef _WIN32
|
|
{
|
|
struct sigaction act;
|
|
sigfillset(&act.sa_mask);
|
|
act.sa_flags = 0;
|
|
act.sa_handler = SIG_IGN;
|
|
sigaction(SIGPIPE, &act, NULL);
|
|
}
|
|
#endif
|
|
init_timers();
|
|
|
|
#if defined(TARGET_I386)
|
|
pc_init(ram_size, vga_ram_size, boot_device,
|
|
ds, fd_filename, snapshot,
|
|
kernel_filename, kernel_cmdline, initrd_filename);
|
|
#elif defined(TARGET_PPC)
|
|
ppc_init();
|
|
#endif
|
|
|
|
/* launched after the device init so that it can display or not a
|
|
banner */
|
|
monitor_init();
|
|
|
|
gui_timer = qemu_new_timer(rt_clock, gui_update, NULL);
|
|
qemu_mod_timer(gui_timer, qemu_get_clock(rt_clock));
|
|
|
|
#ifdef CONFIG_GDBSTUB
|
|
if (use_gdbstub) {
|
|
if (gdbserver_start(gdbstub_port) < 0) {
|
|
fprintf(stderr, "Could not open gdbserver socket on port %d\n",
|
|
gdbstub_port);
|
|
exit(1);
|
|
} else {
|
|
printf("Waiting gdb connection on port %d\n", gdbstub_port);
|
|
}
|
|
} else
|
|
#endif
|
|
{
|
|
vm_start();
|
|
}
|
|
term_init();
|
|
main_loop();
|
|
quit_timers();
|
|
return 0;
|
|
}
|