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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 <errno.h> |
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#include <sys/time.h> |
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|
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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 <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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#ifdef _BSD
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#include <sys/stat.h> |
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#include <libutil.h> |
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#else
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#include <linux/if.h> |
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#include <linux/if_tun.h> |
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#include <pty.h> |
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#include <malloc.h> |
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#include <linux/rtc.h> |
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#endif
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#endif
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#if defined(CONFIG_SLIRP)
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#include "libslirp.h" |
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#endif
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#ifdef _WIN32
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#include <malloc.h> |
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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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|
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#ifdef CONFIG_SDL
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#if defined(__linux__)
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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 /* __linux__ */ |
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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 DO_TB_FLUSH
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#define DEFAULT_NETWORK_SCRIPT "/etc/qemu-ifup" |
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//#define DEBUG_UNUSED_IOPORT
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//#define DEBUG_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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|
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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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int audio_enabled = 0; |
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/***********************************************************/
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/* x86 ISA bus support */
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target_phys_addr_t isa_mem_base = 0;
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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](ioport_opaque[address], address);
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address = (address + 1) & (MAX_IOPORTS - 1); |
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data |= ioport_read_table[0][address](ioport_opaque[address], address) << 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](ioport_opaque[address], address, data & 0xff); |
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address = (address + 1) & (MAX_IOPORTS - 1); |
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ioport_write_table[0][address](ioport_opaque[address], address, (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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|
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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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|
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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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|
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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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|
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void cpu_outb(CPUState *env, int addr, int val) |
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{
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#ifdef DEBUG_IOPORT
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if (loglevel & CPU_LOG_IOPORT)
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fprintf(logfile, "outb: %04x %02x\n", addr, val);
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#endif
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ioport_write_table[0][addr](ioport_opaque[addr], addr, val);
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} |
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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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#ifdef DEBUG_IOPORT
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if (loglevel & CPU_LOG_IOPORT)
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fprintf(logfile, "outw: %04x %04x\n", addr, val);
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#endif
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ioport_write_table[1][addr](ioport_opaque[addr], addr, val);
|
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} |
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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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#ifdef DEBUG_IOPORT
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if (loglevel & CPU_LOG_IOPORT)
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fprintf(logfile, "outl: %04x %08x\n", addr, val);
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#endif
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ioport_write_table[2][addr](ioport_opaque[addr], addr, val);
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} |
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|
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int cpu_inb(CPUState *env, int addr) |
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{
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int val;
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val = ioport_read_table[0][addr](ioport_opaque[addr], addr);
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#ifdef DEBUG_IOPORT
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if (loglevel & CPU_LOG_IOPORT)
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fprintf(logfile, "inb : %04x %02x\n", addr, val);
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#endif
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return val;
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} |
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|
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int cpu_inw(CPUState *env, int addr) |
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{
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int val;
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val = ioport_read_table[1][addr](ioport_opaque[addr], addr);
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#ifdef DEBUG_IOPORT
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if (loglevel & CPU_LOG_IOPORT)
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fprintf(logfile, "inw : %04x %04x\n", addr, val);
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#endif
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return val;
|
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} |
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|
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int cpu_inl(CPUState *env, int addr) |
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{
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int val;
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val = ioport_read_table[2][addr](ioport_opaque[addr], addr);
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#ifdef DEBUG_IOPORT
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if (loglevel & CPU_LOG_IOPORT)
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fprintf(logfile, "inl : %04x %08x\n", addr, val);
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#endif
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return val;
|
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} |
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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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|
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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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/***********************************************************/
|
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/* timers */
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|
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#if defined(__powerpc__)
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|
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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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|
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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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|
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int64_t cpu_get_real_ticks(void)
|
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{
|
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uint32_t l, h, h1; |
| 386 |
/* 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(); |
| 391 |
} while (h != h1);
|
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return ((int64_t)h << 32) | l; |
| 393 |
} |
| 394 |
|
| 395 |
#elif defined(__i386__)
|
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|
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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)); |
| 401 |
return val;
|
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} |
| 403 |
|
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#elif defined(__x86_64__)
|
| 405 |
|
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int64_t cpu_get_real_ticks(void)
|
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{
|
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uint32_t low,high; |
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int64_t val; |
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asm volatile("rdtsc" : "=a" (low), "=d" (high)); |
| 411 |
val = high; |
| 412 |
val <<= 32;
|
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val |= low; |
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return val;
|
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} |
| 416 |
|
| 417 |
#else
|
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#error unsupported CPU
|
| 419 |
#endif
|
| 420 |
|
| 421 |
static int64_t cpu_ticks_offset;
|
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static int cpu_ticks_enabled; |
| 423 |
|
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static inline int64_t cpu_get_ticks(void) |
| 425 |
{
|
| 426 |
if (!cpu_ticks_enabled) {
|
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return cpu_ticks_offset;
|
| 428 |
} else {
|
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return cpu_get_real_ticks() + cpu_ticks_offset;
|
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} |
| 431 |
} |
| 432 |
|
| 433 |
/* enable cpu_get_ticks() */
|
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void cpu_enable_ticks(void) |
| 435 |
{
|
| 436 |
if (!cpu_ticks_enabled) {
|
| 437 |
cpu_ticks_offset -= cpu_get_real_ticks(); |
| 438 |
cpu_ticks_enabled = 1;
|
| 439 |
} |
| 440 |
} |
| 441 |
|
| 442 |
/* disable cpu_get_ticks() : the clock is stopped. You must not call
|
| 443 |
cpu_get_ticks() after that. */
|
| 444 |
void cpu_disable_ticks(void) |
| 445 |
{
|
| 446 |
if (cpu_ticks_enabled) {
|
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cpu_ticks_offset = cpu_get_ticks(); |
| 448 |
cpu_ticks_enabled = 0;
|
| 449 |
} |
| 450 |
} |
| 451 |
|
| 452 |
static int64_t get_clock(void) |
| 453 |
{
|
| 454 |
#ifdef _WIN32
|
| 455 |
struct _timeb tb;
|
| 456 |
_ftime(&tb); |
| 457 |
return ((int64_t)tb.time * 1000 + (int64_t)tb.millitm) * 1000; |
| 458 |
#else
|
| 459 |
struct timeval tv;
|
| 460 |
gettimeofday(&tv, NULL);
|
| 461 |
return tv.tv_sec * 1000000LL + tv.tv_usec; |
| 462 |
#endif
|
| 463 |
} |
| 464 |
|
| 465 |
void cpu_calibrate_ticks(void) |
| 466 |
{
|
| 467 |
int64_t usec, ticks; |
| 468 |
|
| 469 |
usec = get_clock(); |
| 470 |
ticks = cpu_get_real_ticks(); |
| 471 |
#ifdef _WIN32
|
| 472 |
Sleep(50);
|
| 473 |
#else
|
| 474 |
usleep(50 * 1000); |
| 475 |
#endif
|
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usec = get_clock() - usec; |
| 477 |
ticks = cpu_get_real_ticks() - ticks; |
| 478 |
ticks_per_sec = (ticks * 1000000LL + (usec >> 1)) / usec; |
| 479 |
} |
| 480 |
|
| 481 |
/* compute with 96 bit intermediate result: (a*b)/c */
|
| 482 |
uint64_t muldiv64(uint64_t a, uint32_t b, uint32_t c) |
| 483 |
{
|
| 484 |
union {
|
| 485 |
uint64_t ll; |
| 486 |
struct {
|
| 487 |
#ifdef WORDS_BIGENDIAN
|
| 488 |
uint32_t high, low; |
| 489 |
#else
|
| 490 |
uint32_t low, high; |
| 491 |
#endif
|
| 492 |
} l; |
| 493 |
} u, res; |
| 494 |
uint64_t rl, rh; |
| 495 |
|
| 496 |
u.ll = a; |
| 497 |
rl = (uint64_t)u.l.low * (uint64_t)b; |
| 498 |
rh = (uint64_t)u.l.high * (uint64_t)b; |
| 499 |
rh += (rl >> 32);
|
| 500 |
res.l.high = rh / c; |
| 501 |
res.l.low = (((rh % c) << 32) + (rl & 0xffffffff)) / c; |
| 502 |
return res.ll;
|
| 503 |
} |
| 504 |
|
| 505 |
#define QEMU_TIMER_REALTIME 0 |
| 506 |
#define QEMU_TIMER_VIRTUAL 1 |
| 507 |
|
| 508 |
struct QEMUClock {
|
| 509 |
int type;
|
| 510 |
/* XXX: add frequency */
|
| 511 |
}; |
| 512 |
|
| 513 |
struct QEMUTimer {
|
| 514 |
QEMUClock *clock; |
| 515 |
int64_t expire_time; |
| 516 |
QEMUTimerCB *cb; |
| 517 |
void *opaque;
|
| 518 |
struct QEMUTimer *next;
|
| 519 |
}; |
| 520 |
|
| 521 |
QEMUClock *rt_clock; |
| 522 |
QEMUClock *vm_clock; |
| 523 |
|
| 524 |
static QEMUTimer *active_timers[2]; |
| 525 |
#ifdef _WIN32
|
| 526 |
static MMRESULT timerID;
|
| 527 |
#else
|
| 528 |
/* frequency of the times() clock tick */
|
| 529 |
static int timer_freq; |
| 530 |
#endif
|
| 531 |
|
| 532 |
QEMUClock *qemu_new_clock(int type)
|
| 533 |
{
|
| 534 |
QEMUClock *clock; |
| 535 |
clock = qemu_mallocz(sizeof(QEMUClock));
|
| 536 |
if (!clock)
|
| 537 |
return NULL; |
| 538 |
clock->type = type; |
| 539 |
return clock;
|
| 540 |
} |
| 541 |
|
| 542 |
QEMUTimer *qemu_new_timer(QEMUClock *clock, QEMUTimerCB *cb, void *opaque)
|
| 543 |
{
|
| 544 |
QEMUTimer *ts; |
| 545 |
|
| 546 |
ts = qemu_mallocz(sizeof(QEMUTimer));
|
| 547 |
ts->clock = clock; |
| 548 |
ts->cb = cb; |
| 549 |
ts->opaque = opaque; |
| 550 |
return ts;
|
| 551 |
} |
| 552 |
|
| 553 |
void qemu_free_timer(QEMUTimer *ts)
|
| 554 |
{
|
| 555 |
qemu_free(ts); |
| 556 |
} |
| 557 |
|
| 558 |
/* stop a timer, but do not dealloc it */
|
| 559 |
void qemu_del_timer(QEMUTimer *ts)
|
| 560 |
{
|
| 561 |
QEMUTimer **pt, *t; |
| 562 |
|
| 563 |
/* NOTE: this code must be signal safe because
|
| 564 |
qemu_timer_expired() can be called from a signal. */
|
| 565 |
pt = &active_timers[ts->clock->type]; |
| 566 |
for(;;) {
|
| 567 |
t = *pt; |
| 568 |
if (!t)
|
| 569 |
break;
|
| 570 |
if (t == ts) {
|
| 571 |
*pt = t->next; |
| 572 |
break;
|
| 573 |
} |
| 574 |
pt = &t->next; |
| 575 |
} |
| 576 |
} |
| 577 |
|
| 578 |
/* modify the current timer so that it will be fired when current_time
|
| 579 |
>= expire_time. The corresponding callback will be called. */
|
| 580 |
void qemu_mod_timer(QEMUTimer *ts, int64_t expire_time)
|
| 581 |
{
|
| 582 |
QEMUTimer **pt, *t; |
| 583 |
|
| 584 |
qemu_del_timer(ts); |
| 585 |
|
| 586 |
/* add the timer in the sorted list */
|
| 587 |
/* NOTE: this code must be signal safe because
|
| 588 |
qemu_timer_expired() can be called from a signal. */
|
| 589 |
pt = &active_timers[ts->clock->type]; |
| 590 |
for(;;) {
|
| 591 |
t = *pt; |
| 592 |
if (!t)
|
| 593 |
break;
|
| 594 |
if (t->expire_time > expire_time)
|
| 595 |
break;
|
| 596 |
pt = &t->next; |
| 597 |
} |
| 598 |
ts->expire_time = expire_time; |
| 599 |
ts->next = *pt; |
| 600 |
*pt = ts; |
| 601 |
} |
| 602 |
|
| 603 |
int qemu_timer_pending(QEMUTimer *ts)
|
| 604 |
{
|
| 605 |
QEMUTimer *t; |
| 606 |
for(t = active_timers[ts->clock->type]; t != NULL; t = t->next) { |
| 607 |
if (t == ts)
|
| 608 |
return 1; |
| 609 |
} |
| 610 |
return 0; |
| 611 |
} |
| 612 |
|
| 613 |
static inline int qemu_timer_expired(QEMUTimer *timer_head, int64_t current_time) |
| 614 |
{
|
| 615 |
if (!timer_head)
|
| 616 |
return 0; |
| 617 |
return (timer_head->expire_time <= current_time);
|
| 618 |
} |
| 619 |
|
| 620 |
static void qemu_run_timers(QEMUTimer **ptimer_head, int64_t current_time) |
| 621 |
{
|
| 622 |
QEMUTimer *ts; |
| 623 |
|
| 624 |
for(;;) {
|
| 625 |
ts = *ptimer_head; |
| 626 |
if (ts->expire_time > current_time)
|
| 627 |
break;
|
| 628 |
/* remove timer from the list before calling the callback */
|
| 629 |
*ptimer_head = ts->next; |
| 630 |
ts->next = NULL;
|
| 631 |
|
| 632 |
/* run the callback (the timer list can be modified) */
|
| 633 |
ts->cb(ts->opaque); |
| 634 |
} |
| 635 |
} |
| 636 |
|
| 637 |
int64_t qemu_get_clock(QEMUClock *clock) |
| 638 |
{
|
| 639 |
switch(clock->type) {
|
| 640 |
case QEMU_TIMER_REALTIME:
|
| 641 |
#ifdef _WIN32
|
| 642 |
return GetTickCount();
|
| 643 |
#else
|
| 644 |
{
|
| 645 |
struct tms tp;
|
| 646 |
|
| 647 |
/* Note that using gettimeofday() is not a good solution
|
| 648 |
for timers because its value change when the date is
|
| 649 |
modified. */
|
| 650 |
if (timer_freq == 100) { |
| 651 |
return times(&tp) * 10; |
| 652 |
} else {
|
| 653 |
return ((int64_t)times(&tp) * 1000) / timer_freq; |
| 654 |
} |
| 655 |
} |
| 656 |
#endif
|
| 657 |
default:
|
| 658 |
case QEMU_TIMER_VIRTUAL:
|
| 659 |
return cpu_get_ticks();
|
| 660 |
} |
| 661 |
} |
| 662 |
|
| 663 |
/* save a timer */
|
| 664 |
void qemu_put_timer(QEMUFile *f, QEMUTimer *ts)
|
| 665 |
{
|
| 666 |
uint64_t expire_time; |
| 667 |
|
| 668 |
if (qemu_timer_pending(ts)) {
|
| 669 |
expire_time = ts->expire_time; |
| 670 |
} else {
|
| 671 |
expire_time = -1;
|
| 672 |
} |
| 673 |
qemu_put_be64(f, expire_time); |
| 674 |
} |
| 675 |
|
| 676 |
void qemu_get_timer(QEMUFile *f, QEMUTimer *ts)
|
| 677 |
{
|
| 678 |
uint64_t expire_time; |
| 679 |
|
| 680 |
expire_time = qemu_get_be64(f); |
| 681 |
if (expire_time != -1) { |
| 682 |
qemu_mod_timer(ts, expire_time); |
| 683 |
} else {
|
| 684 |
qemu_del_timer(ts); |
| 685 |
} |
| 686 |
} |
| 687 |
|
| 688 |
static void timer_save(QEMUFile *f, void *opaque) |
| 689 |
{
|
| 690 |
if (cpu_ticks_enabled) {
|
| 691 |
hw_error("cannot save state if virtual timers are running");
|
| 692 |
} |
| 693 |
qemu_put_be64s(f, &cpu_ticks_offset); |
| 694 |
qemu_put_be64s(f, &ticks_per_sec); |
| 695 |
} |
| 696 |
|
| 697 |
static int timer_load(QEMUFile *f, void *opaque, int version_id) |
| 698 |
{
|
| 699 |
if (version_id != 1) |
| 700 |
return -EINVAL;
|
| 701 |
if (cpu_ticks_enabled) {
|
| 702 |
return -EINVAL;
|
| 703 |
} |
| 704 |
qemu_get_be64s(f, &cpu_ticks_offset); |
| 705 |
qemu_get_be64s(f, &ticks_per_sec); |
| 706 |
return 0; |
| 707 |
} |
| 708 |
|
| 709 |
#ifdef _WIN32
|
| 710 |
void CALLBACK host_alarm_handler(UINT uTimerID, UINT uMsg,
|
| 711 |
DWORD_PTR dwUser, DWORD_PTR dw1, DWORD_PTR dw2) |
| 712 |
#else
|
| 713 |
static void host_alarm_handler(int host_signum) |
| 714 |
#endif
|
| 715 |
{
|
| 716 |
if (qemu_timer_expired(active_timers[QEMU_TIMER_VIRTUAL],
|
| 717 |
qemu_get_clock(vm_clock)) || |
| 718 |
qemu_timer_expired(active_timers[QEMU_TIMER_REALTIME], |
| 719 |
qemu_get_clock(rt_clock))) {
|
| 720 |
/* stop the cpu because a timer occured */
|
| 721 |
cpu_interrupt(global_env, CPU_INTERRUPT_EXIT); |
| 722 |
} |
| 723 |
} |
| 724 |
|
| 725 |
#ifndef _WIN32
|
| 726 |
|
| 727 |
#define RTC_FREQ 1024 |
| 728 |
|
| 729 |
static int rtc_fd; |
| 730 |
|
| 731 |
static int start_rtc_timer(void) |
| 732 |
{
|
| 733 |
rtc_fd = open("/dev/rtc", O_RDONLY);
|
| 734 |
if (rtc_fd < 0) |
| 735 |
return -1; |
| 736 |
if (ioctl(rtc_fd, RTC_IRQP_SET, RTC_FREQ) < 0) { |
| 737 |
fprintf(stderr, "Could not configure '/dev/rtc' to have a 1024 Hz timer. This is not a fatal\n"
|
| 738 |
"error, but for better emulation accuracy either use a 2.6 host Linux kernel or\n"
|
| 739 |
"type 'echo 1024 > /proc/sys/dev/rtc/max-user-freq' as root.\n");
|
| 740 |
goto fail;
|
| 741 |
} |
| 742 |
if (ioctl(rtc_fd, RTC_PIE_ON, 0) < 0) { |
| 743 |
fail:
|
| 744 |
close(rtc_fd); |
| 745 |
return -1; |
| 746 |
} |
| 747 |
pit_min_timer_count = PIT_FREQ / RTC_FREQ; |
| 748 |
return 0; |
| 749 |
} |
| 750 |
|
| 751 |
#endif
|
| 752 |
|
| 753 |
static void init_timers(void) |
| 754 |
{
|
| 755 |
rt_clock = qemu_new_clock(QEMU_TIMER_REALTIME); |
| 756 |
vm_clock = qemu_new_clock(QEMU_TIMER_VIRTUAL); |
| 757 |
|
| 758 |
#ifdef _WIN32
|
| 759 |
{
|
| 760 |
int count=0; |
| 761 |
timerID = timeSetEvent(10, // interval (ms) |
| 762 |
0, // resolution |
| 763 |
host_alarm_handler, // function
|
| 764 |
(DWORD)&count, // user parameter
|
| 765 |
TIME_PERIODIC | TIME_CALLBACK_FUNCTION); |
| 766 |
if( !timerID ) {
|
| 767 |
perror("failed timer alarm");
|
| 768 |
exit(1);
|
| 769 |
} |
| 770 |
} |
| 771 |
pit_min_timer_count = ((uint64_t)10000 * PIT_FREQ) / 1000000; |
| 772 |
#else
|
| 773 |
{
|
| 774 |
struct sigaction act;
|
| 775 |
struct itimerval itv;
|
| 776 |
|
| 777 |
/* get times() syscall frequency */
|
| 778 |
timer_freq = sysconf(_SC_CLK_TCK); |
| 779 |
|
| 780 |
/* timer signal */
|
| 781 |
sigfillset(&act.sa_mask); |
| 782 |
act.sa_flags = 0;
|
| 783 |
#if defined (TARGET_I386) && defined(USE_CODE_COPY)
|
| 784 |
act.sa_flags |= SA_ONSTACK; |
| 785 |
#endif
|
| 786 |
act.sa_handler = host_alarm_handler; |
| 787 |
sigaction(SIGALRM, &act, NULL);
|
| 788 |
|
| 789 |
itv.it_interval.tv_sec = 0;
|
| 790 |
itv.it_interval.tv_usec = 1000;
|
| 791 |
itv.it_value.tv_sec = 0;
|
| 792 |
itv.it_value.tv_usec = 10 * 1000; |
| 793 |
setitimer(ITIMER_REAL, &itv, NULL);
|
| 794 |
/* we probe the tick duration of the kernel to inform the user if
|
| 795 |
the emulated kernel requested a too high timer frequency */
|
| 796 |
getitimer(ITIMER_REAL, &itv); |
| 797 |
|
| 798 |
if (itv.it_interval.tv_usec > 1000) { |
| 799 |
/* try to use /dev/rtc to have a faster timer */
|
| 800 |
if (start_rtc_timer() < 0) |
| 801 |
goto use_itimer;
|
| 802 |
/* disable itimer */
|
| 803 |
itv.it_interval.tv_sec = 0;
|
| 804 |
itv.it_interval.tv_usec = 0;
|
| 805 |
itv.it_value.tv_sec = 0;
|
| 806 |
itv.it_value.tv_usec = 0;
|
| 807 |
setitimer(ITIMER_REAL, &itv, NULL);
|
| 808 |
|
| 809 |
/* use the RTC */
|
| 810 |
sigaction(SIGIO, &act, NULL);
|
| 811 |
fcntl(rtc_fd, F_SETFL, O_ASYNC); |
| 812 |
fcntl(rtc_fd, F_SETOWN, getpid()); |
| 813 |
} else {
|
| 814 |
use_itimer:
|
| 815 |
pit_min_timer_count = ((uint64_t)itv.it_interval.tv_usec * |
| 816 |
PIT_FREQ) / 1000000;
|
| 817 |
} |
| 818 |
} |
| 819 |
#endif
|
| 820 |
} |
| 821 |
|
| 822 |
void quit_timers(void) |
| 823 |
{
|
| 824 |
#ifdef _WIN32
|
| 825 |
timeKillEvent(timerID); |
| 826 |
#endif
|
| 827 |
} |
| 828 |
|
| 829 |
/***********************************************************/
|
| 830 |
/* serial device */
|
| 831 |
|
| 832 |
#ifdef _WIN32
|
| 833 |
|
| 834 |
int serial_open_device(void) |
| 835 |
{
|
| 836 |
return -1; |
| 837 |
} |
| 838 |
|
| 839 |
#else
|
| 840 |
|
| 841 |
int serial_open_device(void) |
| 842 |
{
|
| 843 |
char slave_name[1024]; |
| 844 |
int master_fd, slave_fd;
|
| 845 |
|
| 846 |
if (serial_console == NULL && nographic) { |
| 847 |
/* use console for serial port */
|
| 848 |
return 0; |
| 849 |
} else {
|
| 850 |
if (openpty(&master_fd, &slave_fd, slave_name, NULL, NULL) < 0) { |
| 851 |
fprintf(stderr, "warning: could not create pseudo terminal for serial port\n");
|
| 852 |
return -1; |
| 853 |
} |
| 854 |
fprintf(stderr, "Serial port redirected to %s\n", slave_name);
|
| 855 |
return master_fd;
|
| 856 |
} |
| 857 |
} |
| 858 |
|
| 859 |
#endif
|
| 860 |
|
| 861 |
/***********************************************************/
|
| 862 |
/* Linux network device redirectors */
|
| 863 |
|
| 864 |
void hex_dump(FILE *f, const uint8_t *buf, int size) |
| 865 |
{
|
| 866 |
int len, i, j, c;
|
| 867 |
|
| 868 |
for(i=0;i<size;i+=16) { |
| 869 |
len = size - i; |
| 870 |
if (len > 16) |
| 871 |
len = 16;
|
| 872 |
fprintf(f, "%08x ", i);
|
| 873 |
for(j=0;j<16;j++) { |
| 874 |
if (j < len)
|
| 875 |
fprintf(f, " %02x", buf[i+j]);
|
| 876 |
else
|
| 877 |
fprintf(f, " ");
|
| 878 |
} |
| 879 |
fprintf(f, " ");
|
| 880 |
for(j=0;j<len;j++) { |
| 881 |
c = buf[i+j]; |
| 882 |
if (c < ' ' || c > '~') |
| 883 |
c = '.';
|
| 884 |
fprintf(f, "%c", c);
|
| 885 |
} |
| 886 |
fprintf(f, "\n");
|
| 887 |
} |
| 888 |
} |
| 889 |
|
| 890 |
void qemu_send_packet(NetDriverState *nd, const uint8_t *buf, int size) |
| 891 |
{
|
| 892 |
nd->send_packet(nd, buf, size); |
| 893 |
} |
| 894 |
|
| 895 |
void qemu_add_read_packet(NetDriverState *nd, IOCanRWHandler *fd_can_read,
|
| 896 |
IOReadHandler *fd_read, void *opaque)
|
| 897 |
{
|
| 898 |
nd->add_read_packet(nd, fd_can_read, fd_read, opaque); |
| 899 |
} |
| 900 |
|
| 901 |
/* dummy network adapter */
|
| 902 |
|
| 903 |
static void dummy_send_packet(NetDriverState *nd, const uint8_t *buf, int size) |
| 904 |
{
|
| 905 |
} |
| 906 |
|
| 907 |
static void dummy_add_read_packet(NetDriverState *nd, |
| 908 |
IOCanRWHandler *fd_can_read, |
| 909 |
IOReadHandler *fd_read, void *opaque)
|
| 910 |
{
|
| 911 |
} |
| 912 |
|
| 913 |
static int net_dummy_init(NetDriverState *nd) |
| 914 |
{
|
| 915 |
nd->send_packet = dummy_send_packet; |
| 916 |
nd->add_read_packet = dummy_add_read_packet; |
| 917 |
pstrcpy(nd->ifname, sizeof(nd->ifname), "dummy"); |
| 918 |
return 0; |
| 919 |
} |
| 920 |
|
| 921 |
#if defined(CONFIG_SLIRP)
|
| 922 |
|
| 923 |
/* slirp network adapter */
|
| 924 |
|
| 925 |
static void *slirp_fd_opaque; |
| 926 |
static IOCanRWHandler *slirp_fd_can_read;
|
| 927 |
static IOReadHandler *slirp_fd_read;
|
| 928 |
static int slirp_inited; |
| 929 |
|
| 930 |
int slirp_can_output(void) |
| 931 |
{
|
| 932 |
return slirp_fd_can_read(slirp_fd_opaque);
|
| 933 |
} |
| 934 |
|
| 935 |
void slirp_output(const uint8_t *pkt, int pkt_len) |
| 936 |
{
|
| 937 |
#if 0
|
| 938 |
printf("output:\n");
|
| 939 |
hex_dump(stdout, pkt, pkt_len);
|
| 940 |
#endif
|
| 941 |
slirp_fd_read(slirp_fd_opaque, pkt, pkt_len); |
| 942 |
} |
| 943 |
|
| 944 |
static void slirp_send_packet(NetDriverState *nd, const uint8_t *buf, int size) |
| 945 |
{
|
| 946 |
#if 0
|
| 947 |
printf("input:\n");
|
| 948 |
hex_dump(stdout, buf, size);
|
| 949 |
#endif
|
| 950 |
slirp_input(buf, size); |
| 951 |
} |
| 952 |
|
| 953 |
static void slirp_add_read_packet(NetDriverState *nd, |
| 954 |
IOCanRWHandler *fd_can_read, |
| 955 |
IOReadHandler *fd_read, void *opaque)
|
| 956 |
{
|
| 957 |
slirp_fd_opaque = opaque; |
| 958 |
slirp_fd_can_read = fd_can_read; |
| 959 |
slirp_fd_read = fd_read; |
| 960 |
} |
| 961 |
|
| 962 |
static int net_slirp_init(NetDriverState *nd) |
| 963 |
{
|
| 964 |
if (!slirp_inited) {
|
| 965 |
slirp_inited = 1;
|
| 966 |
slirp_init(); |
| 967 |
} |
| 968 |
nd->send_packet = slirp_send_packet; |
| 969 |
nd->add_read_packet = slirp_add_read_packet; |
| 970 |
pstrcpy(nd->ifname, sizeof(nd->ifname), "slirp"); |
| 971 |
return 0; |
| 972 |
} |
| 973 |
|
| 974 |
#endif /* CONFIG_SLIRP */ |
| 975 |
|
| 976 |
#if !defined(_WIN32)
|
| 977 |
#ifdef _BSD
|
| 978 |
static int tun_open(char *ifname, int ifname_size) |
| 979 |
{
|
| 980 |
int fd;
|
| 981 |
char *dev;
|
| 982 |
struct stat s;
|
| 983 |
|
| 984 |
fd = open("/dev/tap", O_RDWR);
|
| 985 |
if (fd < 0) { |
| 986 |
fprintf(stderr, "warning: could not open /dev/tap: no virtual network emulation\n");
|
| 987 |
return -1; |
| 988 |
} |
| 989 |
|
| 990 |
fstat(fd, &s); |
| 991 |
dev = devname(s.st_rdev, S_IFCHR); |
| 992 |
pstrcpy(ifname, ifname_size, dev); |
| 993 |
|
| 994 |
fcntl(fd, F_SETFL, O_NONBLOCK); |
| 995 |
return fd;
|
| 996 |
} |
| 997 |
#else
|
| 998 |
static int tun_open(char *ifname, int ifname_size) |
| 999 |
{
|
| 1000 |
struct ifreq ifr;
|
| 1001 |
int fd, ret;
|
| 1002 |
|
| 1003 |
fd = open("/dev/net/tun", O_RDWR);
|
| 1004 |
if (fd < 0) { |
| 1005 |
fprintf(stderr, "warning: could not open /dev/net/tun: no virtual network emulation\n");
|
| 1006 |
return -1; |
| 1007 |
} |
| 1008 |
memset(&ifr, 0, sizeof(ifr)); |
| 1009 |
ifr.ifr_flags = IFF_TAP | IFF_NO_PI; |
| 1010 |
pstrcpy(ifr.ifr_name, IFNAMSIZ, "tun%d");
|
| 1011 |
ret = ioctl(fd, TUNSETIFF, (void *) &ifr);
|
| 1012 |
if (ret != 0) { |
| 1013 |
fprintf(stderr, "warning: could not configure /dev/net/tun: no virtual network emulation\n");
|
| 1014 |
close(fd); |
| 1015 |
return -1; |
| 1016 |
} |
| 1017 |
printf("Connected to host network interface: %s\n", ifr.ifr_name);
|
| 1018 |
pstrcpy(ifname, ifname_size, ifr.ifr_name); |
| 1019 |
fcntl(fd, F_SETFL, O_NONBLOCK); |
| 1020 |
return fd;
|
| 1021 |
} |
| 1022 |
#endif
|
| 1023 |
|
| 1024 |
static void tun_send_packet(NetDriverState *nd, const uint8_t *buf, int size) |
| 1025 |
{
|
| 1026 |
write(nd->fd, buf, size); |
| 1027 |
} |
| 1028 |
|
| 1029 |
static void tun_add_read_packet(NetDriverState *nd, |
| 1030 |
IOCanRWHandler *fd_can_read, |
| 1031 |
IOReadHandler *fd_read, void *opaque)
|
| 1032 |
{
|
| 1033 |
qemu_add_fd_read_handler(nd->fd, fd_can_read, fd_read, opaque); |
| 1034 |
} |
| 1035 |
|
| 1036 |
static int net_tun_init(NetDriverState *nd) |
| 1037 |
{
|
| 1038 |
int pid, status;
|
| 1039 |
char *args[3]; |
| 1040 |
char **parg;
|
| 1041 |
|
| 1042 |
nd->fd = tun_open(nd->ifname, sizeof(nd->ifname));
|
| 1043 |
if (nd->fd < 0) |
| 1044 |
return -1; |
| 1045 |
|
| 1046 |
/* try to launch network init script */
|
| 1047 |
pid = fork(); |
| 1048 |
if (pid >= 0) { |
| 1049 |
if (pid == 0) { |
| 1050 |
parg = args; |
| 1051 |
*parg++ = network_script; |
| 1052 |
*parg++ = nd->ifname; |
| 1053 |
*parg++ = NULL;
|
| 1054 |
execv(network_script, args); |
| 1055 |
exit(1);
|
| 1056 |
} |
| 1057 |
while (waitpid(pid, &status, 0) != pid); |
| 1058 |
if (!WIFEXITED(status) ||
|
| 1059 |
WEXITSTATUS(status) != 0) {
|
| 1060 |
fprintf(stderr, "%s: could not launch network script\n",
|
| 1061 |
network_script); |
| 1062 |
} |
| 1063 |
} |
| 1064 |
nd->send_packet = tun_send_packet; |
| 1065 |
nd->add_read_packet = tun_add_read_packet; |
| 1066 |
return 0; |
| 1067 |
} |
| 1068 |
|
| 1069 |
static int net_fd_init(NetDriverState *nd, int fd) |
| 1070 |
{
|
| 1071 |
nd->fd = fd; |
| 1072 |
nd->send_packet = tun_send_packet; |
| 1073 |
nd->add_read_packet = tun_add_read_packet; |
| 1074 |
pstrcpy(nd->ifname, sizeof(nd->ifname), "tunfd"); |
| 1075 |
return 0; |
| 1076 |
} |
| 1077 |
|
| 1078 |
#endif /* !_WIN32 */ |
| 1079 |
|
| 1080 |
/***********************************************************/
|
| 1081 |
/* dumb display */
|
| 1082 |
|
| 1083 |
#ifdef _WIN32
|
| 1084 |
|
| 1085 |
static void term_exit(void) |
| 1086 |
{
|
| 1087 |
} |
| 1088 |
|
| 1089 |
static void term_init(void) |
| 1090 |
{
|
| 1091 |
} |
| 1092 |
|
| 1093 |
#else
|
| 1094 |
|
| 1095 |
/* init terminal so that we can grab keys */
|
| 1096 |
static struct termios oldtty; |
| 1097 |
|
| 1098 |
static void term_exit(void) |
| 1099 |
{
|
| 1100 |
tcsetattr (0, TCSANOW, &oldtty);
|
| 1101 |
} |
| 1102 |
|
| 1103 |
static void term_init(void) |
| 1104 |
{
|
| 1105 |
struct termios tty;
|
| 1106 |
|
| 1107 |
tcgetattr (0, &tty);
|
| 1108 |
oldtty = tty; |
| 1109 |
|
| 1110 |
tty.c_iflag &= ~(IGNBRK|BRKINT|PARMRK|ISTRIP |
| 1111 |
|INLCR|IGNCR|ICRNL|IXON); |
| 1112 |
tty.c_oflag |= OPOST; |
| 1113 |
tty.c_lflag &= ~(ECHO|ECHONL|ICANON|IEXTEN); |
| 1114 |
/* if graphical mode, we allow Ctrl-C handling */
|
| 1115 |
if (nographic)
|
| 1116 |
tty.c_lflag &= ~ISIG; |
| 1117 |
tty.c_cflag &= ~(CSIZE|PARENB); |
| 1118 |
tty.c_cflag |= CS8; |
| 1119 |
tty.c_cc[VMIN] = 1;
|
| 1120 |
tty.c_cc[VTIME] = 0;
|
| 1121 |
|
| 1122 |
tcsetattr (0, TCSANOW, &tty);
|
| 1123 |
|
| 1124 |
atexit(term_exit); |
| 1125 |
|
| 1126 |
fcntl(0, F_SETFL, O_NONBLOCK);
|
| 1127 |
} |
| 1128 |
|
| 1129 |
#endif
|
| 1130 |
|
| 1131 |
static void dumb_update(DisplayState *ds, int x, int y, int w, int h) |
| 1132 |
{
|
| 1133 |
} |
| 1134 |
|
| 1135 |
static void dumb_resize(DisplayState *ds, int w, int h) |
| 1136 |
{
|
| 1137 |
} |
| 1138 |
|
| 1139 |
static void dumb_refresh(DisplayState *ds) |
| 1140 |
{
|
| 1141 |
vga_update_display(); |
| 1142 |
} |
| 1143 |
|
| 1144 |
void dumb_display_init(DisplayState *ds)
|
| 1145 |
{
|
| 1146 |
ds->data = NULL;
|
| 1147 |
ds->linesize = 0;
|
| 1148 |
ds->depth = 0;
|
| 1149 |
ds->dpy_update = dumb_update; |
| 1150 |
ds->dpy_resize = dumb_resize; |
| 1151 |
ds->dpy_refresh = dumb_refresh; |
| 1152 |
} |
| 1153 |
|
| 1154 |
#if !defined(CONFIG_SOFTMMU)
|
| 1155 |
/***********************************************************/
|
| 1156 |
/* cpu signal handler */
|
| 1157 |
static void host_segv_handler(int host_signum, siginfo_t *info, |
| 1158 |
void *puc)
|
| 1159 |
{
|
| 1160 |
if (cpu_signal_handler(host_signum, info, puc))
|
| 1161 |
return;
|
| 1162 |
term_exit(); |
| 1163 |
abort(); |
| 1164 |
} |
| 1165 |
#endif
|
| 1166 |
|
| 1167 |
/***********************************************************/
|
| 1168 |
/* I/O handling */
|
| 1169 |
|
| 1170 |
#define MAX_IO_HANDLERS 64 |
| 1171 |
|
| 1172 |
typedef struct IOHandlerRecord { |
| 1173 |
int fd;
|
| 1174 |
IOCanRWHandler *fd_can_read; |
| 1175 |
IOReadHandler *fd_read; |
| 1176 |
void *opaque;
|
| 1177 |
/* temporary data */
|
| 1178 |
struct pollfd *ufd;
|
| 1179 |
int max_size;
|
| 1180 |
struct IOHandlerRecord *next;
|
| 1181 |
} IOHandlerRecord; |
| 1182 |
|
| 1183 |
static IOHandlerRecord *first_io_handler;
|
| 1184 |
|
| 1185 |
int qemu_add_fd_read_handler(int fd, IOCanRWHandler *fd_can_read, |
| 1186 |
IOReadHandler *fd_read, void *opaque)
|
| 1187 |
{
|
| 1188 |
IOHandlerRecord *ioh; |
| 1189 |
|
| 1190 |
ioh = qemu_mallocz(sizeof(IOHandlerRecord));
|
| 1191 |
if (!ioh)
|
| 1192 |
return -1; |
| 1193 |
ioh->fd = fd; |
| 1194 |
ioh->fd_can_read = fd_can_read; |
| 1195 |
ioh->fd_read = fd_read; |
| 1196 |
ioh->opaque = opaque; |
| 1197 |
ioh->next = first_io_handler; |
| 1198 |
first_io_handler = ioh; |
| 1199 |
return 0; |
| 1200 |
} |
| 1201 |
|
| 1202 |
void qemu_del_fd_read_handler(int fd) |
| 1203 |
{
|
| 1204 |
IOHandlerRecord **pioh, *ioh; |
| 1205 |
|
| 1206 |
pioh = &first_io_handler; |
| 1207 |
for(;;) {
|
| 1208 |
ioh = *pioh; |
| 1209 |
if (ioh == NULL) |
| 1210 |
break;
|
| 1211 |
if (ioh->fd == fd) {
|
| 1212 |
*pioh = ioh->next; |
| 1213 |
break;
|
| 1214 |
} |
| 1215 |
pioh = &ioh->next; |
| 1216 |
} |
| 1217 |
} |
| 1218 |
|
| 1219 |
/***********************************************************/
|
| 1220 |
/* savevm/loadvm support */
|
| 1221 |
|
| 1222 |
void qemu_put_buffer(QEMUFile *f, const uint8_t *buf, int size) |
| 1223 |
{
|
| 1224 |
fwrite(buf, 1, size, f);
|
| 1225 |
} |
| 1226 |
|
| 1227 |
void qemu_put_byte(QEMUFile *f, int v) |
| 1228 |
{
|
| 1229 |
fputc(v, f); |
| 1230 |
} |
| 1231 |
|
| 1232 |
void qemu_put_be16(QEMUFile *f, unsigned int v) |
| 1233 |
{
|
| 1234 |
qemu_put_byte(f, v >> 8);
|
| 1235 |
qemu_put_byte(f, v); |
| 1236 |
} |
| 1237 |
|
| 1238 |
void qemu_put_be32(QEMUFile *f, unsigned int v) |
| 1239 |
{
|
| 1240 |
qemu_put_byte(f, v >> 24);
|
| 1241 |
qemu_put_byte(f, v >> 16);
|
| 1242 |
qemu_put_byte(f, v >> 8);
|
| 1243 |
qemu_put_byte(f, v); |
| 1244 |
} |
| 1245 |
|
| 1246 |
void qemu_put_be64(QEMUFile *f, uint64_t v)
|
| 1247 |
{
|
| 1248 |
qemu_put_be32(f, v >> 32);
|
| 1249 |
qemu_put_be32(f, v); |
| 1250 |
} |
| 1251 |
|
| 1252 |
int qemu_get_buffer(QEMUFile *f, uint8_t *buf, int size) |
| 1253 |
{
|
| 1254 |
return fread(buf, 1, size, f); |
| 1255 |
} |
| 1256 |
|
| 1257 |
int qemu_get_byte(QEMUFile *f)
|
| 1258 |
{
|
| 1259 |
int v;
|
| 1260 |
v = fgetc(f); |
| 1261 |
if (v == EOF) |
| 1262 |
return 0; |
| 1263 |
else
|
| 1264 |
return v;
|
| 1265 |
} |
| 1266 |
|
| 1267 |
unsigned int qemu_get_be16(QEMUFile *f) |
| 1268 |
{
|
| 1269 |
unsigned int v; |
| 1270 |
v = qemu_get_byte(f) << 8;
|
| 1271 |
v |= qemu_get_byte(f); |
| 1272 |
return v;
|
| 1273 |
} |
| 1274 |
|
| 1275 |
unsigned int qemu_get_be32(QEMUFile *f) |
| 1276 |
{
|
| 1277 |
unsigned int v; |
| 1278 |
v = qemu_get_byte(f) << 24;
|
| 1279 |
v |= qemu_get_byte(f) << 16;
|
| 1280 |
v |= qemu_get_byte(f) << 8;
|
| 1281 |
v |= qemu_get_byte(f); |
| 1282 |
return v;
|
| 1283 |
} |
| 1284 |
|
| 1285 |
uint64_t qemu_get_be64(QEMUFile *f) |
| 1286 |
{
|
| 1287 |
uint64_t v; |
| 1288 |
v = (uint64_t)qemu_get_be32(f) << 32;
|
| 1289 |
v |= qemu_get_be32(f); |
| 1290 |
return v;
|
| 1291 |
} |
| 1292 |
|
| 1293 |
int64_t qemu_ftell(QEMUFile *f) |
| 1294 |
{
|
| 1295 |
return ftell(f);
|
| 1296 |
} |
| 1297 |
|
| 1298 |
int64_t qemu_fseek(QEMUFile *f, int64_t pos, int whence)
|
| 1299 |
{
|
| 1300 |
if (fseek(f, pos, whence) < 0) |
| 1301 |
return -1; |
| 1302 |
return ftell(f);
|
| 1303 |
} |
| 1304 |
|
| 1305 |
typedef struct SaveStateEntry { |
| 1306 |
char idstr[256]; |
| 1307 |
int instance_id;
|
| 1308 |
int version_id;
|
| 1309 |
SaveStateHandler *save_state; |
| 1310 |
LoadStateHandler *load_state; |
| 1311 |
void *opaque;
|
| 1312 |
struct SaveStateEntry *next;
|
| 1313 |
} SaveStateEntry; |
| 1314 |
|
| 1315 |
static SaveStateEntry *first_se;
|
| 1316 |
|
| 1317 |
int register_savevm(const char *idstr, |
| 1318 |
int instance_id,
|
| 1319 |
int version_id,
|
| 1320 |
SaveStateHandler *save_state, |
| 1321 |
LoadStateHandler *load_state, |
| 1322 |
void *opaque)
|
| 1323 |
{
|
| 1324 |
SaveStateEntry *se, **pse; |
| 1325 |
|
| 1326 |
se = qemu_malloc(sizeof(SaveStateEntry));
|
| 1327 |
if (!se)
|
| 1328 |
return -1; |
| 1329 |
pstrcpy(se->idstr, sizeof(se->idstr), idstr);
|
| 1330 |
se->instance_id = instance_id; |
| 1331 |
se->version_id = version_id; |
| 1332 |
se->save_state = save_state; |
| 1333 |
se->load_state = load_state; |
| 1334 |
se->opaque = opaque; |
| 1335 |
se->next = NULL;
|
| 1336 |
|
| 1337 |
/* add at the end of list */
|
| 1338 |
pse = &first_se; |
| 1339 |
while (*pse != NULL) |
| 1340 |
pse = &(*pse)->next; |
| 1341 |
*pse = se; |
| 1342 |
return 0; |
| 1343 |
} |
| 1344 |
|
| 1345 |
#define QEMU_VM_FILE_MAGIC 0x5145564d |
| 1346 |
#define QEMU_VM_FILE_VERSION 0x00000001 |
| 1347 |
|
| 1348 |
int qemu_savevm(const char *filename) |
| 1349 |
{
|
| 1350 |
SaveStateEntry *se; |
| 1351 |
QEMUFile *f; |
| 1352 |
int len, len_pos, cur_pos, saved_vm_running, ret;
|
| 1353 |
|
| 1354 |
saved_vm_running = vm_running; |
| 1355 |
vm_stop(0);
|
| 1356 |
|
| 1357 |
f = fopen(filename, "wb");
|
| 1358 |
if (!f) {
|
| 1359 |
ret = -1;
|
| 1360 |
goto the_end;
|
| 1361 |
} |
| 1362 |
|
| 1363 |
qemu_put_be32(f, QEMU_VM_FILE_MAGIC); |
| 1364 |
qemu_put_be32(f, QEMU_VM_FILE_VERSION); |
| 1365 |
|
| 1366 |
for(se = first_se; se != NULL; se = se->next) { |
| 1367 |
/* ID string */
|
| 1368 |
len = strlen(se->idstr); |
| 1369 |
qemu_put_byte(f, len); |
| 1370 |
qemu_put_buffer(f, se->idstr, len); |
| 1371 |
|
| 1372 |
qemu_put_be32(f, se->instance_id); |
| 1373 |
qemu_put_be32(f, se->version_id); |
| 1374 |
|
| 1375 |
/* record size: filled later */
|
| 1376 |
len_pos = ftell(f); |
| 1377 |
qemu_put_be32(f, 0);
|
| 1378 |
|
| 1379 |
se->save_state(f, se->opaque); |
| 1380 |
|
| 1381 |
/* fill record size */
|
| 1382 |
cur_pos = ftell(f); |
| 1383 |
len = ftell(f) - len_pos - 4;
|
| 1384 |
fseek(f, len_pos, SEEK_SET); |
| 1385 |
qemu_put_be32(f, len); |
| 1386 |
fseek(f, cur_pos, SEEK_SET); |
| 1387 |
} |
| 1388 |
|
| 1389 |
fclose(f); |
| 1390 |
ret = 0;
|
| 1391 |
the_end:
|
| 1392 |
if (saved_vm_running)
|
| 1393 |
vm_start(); |
| 1394 |
return ret;
|
| 1395 |
} |
| 1396 |
|
| 1397 |
static SaveStateEntry *find_se(const char *idstr, int instance_id) |
| 1398 |
{
|
| 1399 |
SaveStateEntry *se; |
| 1400 |
|
| 1401 |
for(se = first_se; se != NULL; se = se->next) { |
| 1402 |
if (!strcmp(se->idstr, idstr) &&
|
| 1403 |
instance_id == se->instance_id) |
| 1404 |
return se;
|
| 1405 |
} |
| 1406 |
return NULL; |
| 1407 |
} |
| 1408 |
|
| 1409 |
int qemu_loadvm(const char *filename) |
| 1410 |
{
|
| 1411 |
SaveStateEntry *se; |
| 1412 |
QEMUFile *f; |
| 1413 |
int len, cur_pos, ret, instance_id, record_len, version_id;
|
| 1414 |
int saved_vm_running;
|
| 1415 |
unsigned int v; |
| 1416 |
char idstr[256]; |
| 1417 |
|
| 1418 |
saved_vm_running = vm_running; |
| 1419 |
vm_stop(0);
|
| 1420 |
|
| 1421 |
f = fopen(filename, "rb");
|
| 1422 |
if (!f) {
|
| 1423 |
ret = -1;
|
| 1424 |
goto the_end;
|
| 1425 |
} |
| 1426 |
|
| 1427 |
v = qemu_get_be32(f); |
| 1428 |
if (v != QEMU_VM_FILE_MAGIC)
|
| 1429 |
goto fail;
|
| 1430 |
v = qemu_get_be32(f); |
| 1431 |
if (v != QEMU_VM_FILE_VERSION) {
|
| 1432 |
fail:
|
| 1433 |
fclose(f); |
| 1434 |
ret = -1;
|
| 1435 |
goto the_end;
|
| 1436 |
} |
| 1437 |
for(;;) {
|
| 1438 |
#if defined (DO_TB_FLUSH)
|
| 1439 |
tb_flush(global_env); |
| 1440 |
#endif
|
| 1441 |
len = qemu_get_byte(f); |
| 1442 |
if (feof(f))
|
| 1443 |
break;
|
| 1444 |
qemu_get_buffer(f, idstr, len); |
| 1445 |
idstr[len] = '\0';
|
| 1446 |
instance_id = qemu_get_be32(f); |
| 1447 |
version_id = qemu_get_be32(f); |
| 1448 |
record_len = qemu_get_be32(f); |
| 1449 |
#if 0
|
| 1450 |
printf("idstr=%s instance=0x%x version=%d len=%d\n",
|
| 1451 |
idstr, instance_id, version_id, record_len);
|
| 1452 |
#endif
|
| 1453 |
cur_pos = ftell(f); |
| 1454 |
se = find_se(idstr, instance_id); |
| 1455 |
if (!se) {
|
| 1456 |
fprintf(stderr, "qemu: warning: instance 0x%x of device '%s' not present in current VM\n",
|
| 1457 |
instance_id, idstr); |
| 1458 |
} else {
|
| 1459 |
ret = se->load_state(f, se->opaque, version_id); |
| 1460 |
if (ret < 0) { |
| 1461 |
fprintf(stderr, "qemu: warning: error while loading state for instance 0x%x of device '%s'\n",
|
| 1462 |
instance_id, idstr); |
| 1463 |
} |
| 1464 |
} |
| 1465 |
/* always seek to exact end of record */
|
| 1466 |
qemu_fseek(f, cur_pos + record_len, SEEK_SET); |
| 1467 |
} |
| 1468 |
fclose(f); |
| 1469 |
ret = 0;
|
| 1470 |
the_end:
|
| 1471 |
if (saved_vm_running)
|
| 1472 |
vm_start(); |
| 1473 |
return ret;
|
| 1474 |
} |
| 1475 |
|
| 1476 |
/***********************************************************/
|
| 1477 |
/* cpu save/restore */
|
| 1478 |
|
| 1479 |
#if defined(TARGET_I386)
|
| 1480 |
|
| 1481 |
static void cpu_put_seg(QEMUFile *f, SegmentCache *dt) |
| 1482 |
{
|
| 1483 |
qemu_put_be32(f, (uint32_t)dt->base); |
| 1484 |
qemu_put_be32(f, dt->limit); |
| 1485 |
qemu_put_be32(f, dt->flags); |
| 1486 |
} |
| 1487 |
|
| 1488 |
static void cpu_get_seg(QEMUFile *f, SegmentCache *dt) |
| 1489 |
{
|
| 1490 |
dt->base = (uint8_t *)qemu_get_be32(f); |
| 1491 |
dt->limit = qemu_get_be32(f); |
| 1492 |
dt->flags = qemu_get_be32(f); |
| 1493 |
} |
| 1494 |
|
| 1495 |
void cpu_save(QEMUFile *f, void *opaque) |
| 1496 |
{
|
| 1497 |
CPUState *env = opaque; |
| 1498 |
uint16_t fptag, fpus, fpuc; |
| 1499 |
uint32_t hflags; |
| 1500 |
int i;
|
| 1501 |
|
| 1502 |
for(i = 0; i < 8; i++) |
| 1503 |
qemu_put_be32s(f, &env->regs[i]); |
| 1504 |
qemu_put_be32s(f, &env->eip); |
| 1505 |
qemu_put_be32s(f, &env->eflags); |
| 1506 |
qemu_put_be32s(f, &env->eflags); |
| 1507 |
hflags = env->hflags; /* XXX: suppress most of the redundant hflags */
|
| 1508 |
qemu_put_be32s(f, &hflags); |
| 1509 |
|
| 1510 |
/* FPU */
|
| 1511 |
fpuc = env->fpuc; |
| 1512 |
fpus = (env->fpus & ~0x3800) | (env->fpstt & 0x7) << 11; |
| 1513 |
fptag = 0;
|
| 1514 |
for (i=7; i>=0; i--) { |
| 1515 |
fptag <<= 2;
|
| 1516 |
if (env->fptags[i]) {
|
| 1517 |
fptag |= 3;
|
| 1518 |
} |
| 1519 |
} |
| 1520 |
|
| 1521 |
qemu_put_be16s(f, &fpuc); |
| 1522 |
qemu_put_be16s(f, &fpus); |
| 1523 |
qemu_put_be16s(f, &fptag); |
| 1524 |
|
| 1525 |
for(i = 0; i < 8; i++) { |
| 1526 |
uint64_t mant; |
| 1527 |
uint16_t exp; |
| 1528 |
cpu_get_fp80(&mant, &exp, env->fpregs[i]); |
| 1529 |
qemu_put_be64(f, mant); |
| 1530 |
qemu_put_be16(f, exp); |
| 1531 |
} |
| 1532 |
|
| 1533 |
for(i = 0; i < 6; i++) |
| 1534 |
cpu_put_seg(f, &env->segs[i]); |
| 1535 |
cpu_put_seg(f, &env->ldt); |
| 1536 |
cpu_put_seg(f, &env->tr); |
| 1537 |
cpu_put_seg(f, &env->gdt); |
| 1538 |
cpu_put_seg(f, &env->idt); |
| 1539 |
|
| 1540 |
qemu_put_be32s(f, &env->sysenter_cs); |
| 1541 |
qemu_put_be32s(f, &env->sysenter_esp); |
| 1542 |
qemu_put_be32s(f, &env->sysenter_eip); |
| 1543 |
|
| 1544 |
qemu_put_be32s(f, &env->cr[0]);
|
| 1545 |
qemu_put_be32s(f, &env->cr[2]);
|
| 1546 |
qemu_put_be32s(f, &env->cr[3]);
|
| 1547 |
qemu_put_be32s(f, &env->cr[4]);
|
| 1548 |
|
| 1549 |
for(i = 0; i < 8; i++) |
| 1550 |
qemu_put_be32s(f, &env->dr[i]); |
| 1551 |
|
| 1552 |
/* MMU */
|
| 1553 |
qemu_put_be32s(f, &env->a20_mask); |
| 1554 |
} |
| 1555 |
|
| 1556 |
int cpu_load(QEMUFile *f, void *opaque, int version_id) |
| 1557 |
{
|
| 1558 |
CPUState *env = opaque; |
| 1559 |
int i;
|
| 1560 |
uint32_t hflags; |
| 1561 |
uint16_t fpus, fpuc, fptag; |
| 1562 |
|
| 1563 |
if (version_id != 1) |
| 1564 |
return -EINVAL;
|
| 1565 |
for(i = 0; i < 8; i++) |
| 1566 |
qemu_get_be32s(f, &env->regs[i]); |
| 1567 |
qemu_get_be32s(f, &env->eip); |
| 1568 |
qemu_get_be32s(f, &env->eflags); |
| 1569 |
qemu_get_be32s(f, &env->eflags); |
| 1570 |
qemu_get_be32s(f, &hflags); |
| 1571 |
|
| 1572 |
qemu_get_be16s(f, &fpuc); |
| 1573 |
qemu_get_be16s(f, &fpus); |
| 1574 |
qemu_get_be16s(f, &fptag); |
| 1575 |
|
| 1576 |
for(i = 0; i < 8; i++) { |
| 1577 |
uint64_t mant; |
| 1578 |
uint16_t exp; |
| 1579 |
mant = qemu_get_be64(f); |
| 1580 |
exp = qemu_get_be16(f); |
| 1581 |
env->fpregs[i] = cpu_set_fp80(mant, exp); |
| 1582 |
} |
| 1583 |
|
| 1584 |
env->fpuc = fpuc; |
| 1585 |
env->fpstt = (fpus >> 11) & 7; |
| 1586 |
env->fpus = fpus & ~0x3800;
|
| 1587 |
for(i = 0; i < 8; i++) { |
| 1588 |
env->fptags[i] = ((fptag & 3) == 3); |
| 1589 |
fptag >>= 2;
|
| 1590 |
} |
| 1591 |
|
| 1592 |
for(i = 0; i < 6; i++) |
| 1593 |
cpu_get_seg(f, &env->segs[i]); |
| 1594 |
cpu_get_seg(f, &env->ldt); |
| 1595 |
cpu_get_seg(f, &env->tr); |
| 1596 |
cpu_get_seg(f, &env->gdt); |
| 1597 |
cpu_get_seg(f, &env->idt); |
| 1598 |
|
| 1599 |
qemu_get_be32s(f, &env->sysenter_cs); |
| 1600 |
qemu_get_be32s(f, &env->sysenter_esp); |
| 1601 |
qemu_get_be32s(f, &env->sysenter_eip); |
| 1602 |
|
| 1603 |
qemu_get_be32s(f, &env->cr[0]);
|
| 1604 |
qemu_get_be32s(f, &env->cr[2]);
|
| 1605 |
qemu_get_be32s(f, &env->cr[3]);
|
| 1606 |
qemu_get_be32s(f, &env->cr[4]);
|
| 1607 |
|
| 1608 |
for(i = 0; i < 8; i++) |
| 1609 |
qemu_get_be32s(f, &env->dr[i]); |
| 1610 |
|
| 1611 |
/* MMU */
|
| 1612 |
qemu_get_be32s(f, &env->a20_mask); |
| 1613 |
|
| 1614 |
/* XXX: compute hflags from scratch, except for CPL and IIF */
|
| 1615 |
env->hflags = hflags; |
| 1616 |
tlb_flush(env, 1);
|
| 1617 |
return 0; |
| 1618 |
} |
| 1619 |
|
| 1620 |
#elif defined(TARGET_PPC)
|
| 1621 |
void cpu_save(QEMUFile *f, void *opaque) |
| 1622 |
{
|
| 1623 |
} |
| 1624 |
|
| 1625 |
int cpu_load(QEMUFile *f, void *opaque, int version_id) |
| 1626 |
{
|
| 1627 |
return 0; |
| 1628 |
} |
| 1629 |
#else
|
| 1630 |
|
| 1631 |
#warning No CPU save/restore functions
|
| 1632 |
|
| 1633 |
#endif
|
| 1634 |
|
| 1635 |
/***********************************************************/
|
| 1636 |
/* ram save/restore */
|
| 1637 |
|
| 1638 |
/* we just avoid storing empty pages */
|
| 1639 |
static void ram_put_page(QEMUFile *f, const uint8_t *buf, int len) |
| 1640 |
{
|
| 1641 |
int i, v;
|
| 1642 |
|
| 1643 |
v = buf[0];
|
| 1644 |
for(i = 1; i < len; i++) { |
| 1645 |
if (buf[i] != v)
|
| 1646 |
goto normal_save;
|
| 1647 |
} |
| 1648 |
qemu_put_byte(f, 1);
|
| 1649 |
qemu_put_byte(f, v); |
| 1650 |
return;
|
| 1651 |
normal_save:
|
| 1652 |
qemu_put_byte(f, 0);
|
| 1653 |
qemu_put_buffer(f, buf, len); |
| 1654 |
} |
| 1655 |
|
| 1656 |
static int ram_get_page(QEMUFile *f, uint8_t *buf, int len) |
| 1657 |
{
|
| 1658 |
int v;
|
| 1659 |
|
| 1660 |
v = qemu_get_byte(f); |
| 1661 |
switch(v) {
|
| 1662 |
case 0: |
| 1663 |
if (qemu_get_buffer(f, buf, len) != len)
|
| 1664 |
return -EIO;
|
| 1665 |
break;
|
| 1666 |
case 1: |
| 1667 |
v = qemu_get_byte(f); |
| 1668 |
memset(buf, v, len); |
| 1669 |
break;
|
| 1670 |
default:
|
| 1671 |
return -EINVAL;
|
| 1672 |
} |
| 1673 |
return 0; |
| 1674 |
} |
| 1675 |
|
| 1676 |
static void ram_save(QEMUFile *f, void *opaque) |
| 1677 |
{
|
| 1678 |
int i;
|
| 1679 |
qemu_put_be32(f, phys_ram_size); |
| 1680 |
for(i = 0; i < phys_ram_size; i+= TARGET_PAGE_SIZE) { |
| 1681 |
ram_put_page(f, phys_ram_base + i, TARGET_PAGE_SIZE); |
| 1682 |
} |
| 1683 |
} |
| 1684 |
|
| 1685 |
static int ram_load(QEMUFile *f, void *opaque, int version_id) |
| 1686 |
{
|
| 1687 |
int i, ret;
|
| 1688 |
|
| 1689 |
if (version_id != 1) |
| 1690 |
return -EINVAL;
|
| 1691 |
if (qemu_get_be32(f) != phys_ram_size)
|
| 1692 |
return -EINVAL;
|
| 1693 |
for(i = 0; i < phys_ram_size; i+= TARGET_PAGE_SIZE) { |
| 1694 |
ret = ram_get_page(f, phys_ram_base + i, TARGET_PAGE_SIZE); |
| 1695 |
if (ret)
|
| 1696 |
return ret;
|
| 1697 |
} |
| 1698 |
return 0; |
| 1699 |
} |
| 1700 |
|
| 1701 |
/***********************************************************/
|
| 1702 |
/* main execution loop */
|
| 1703 |
|
| 1704 |
void gui_update(void *opaque) |
| 1705 |
{
|
| 1706 |
display_state.dpy_refresh(&display_state); |
| 1707 |
qemu_mod_timer(gui_timer, GUI_REFRESH_INTERVAL + qemu_get_clock(rt_clock)); |
| 1708 |
} |
| 1709 |
|
| 1710 |
/* XXX: support several handlers */
|
| 1711 |
VMStopHandler *vm_stop_cb; |
| 1712 |
VMStopHandler *vm_stop_opaque; |
| 1713 |
|
| 1714 |
int qemu_add_vm_stop_handler(VMStopHandler *cb, void *opaque) |
| 1715 |
{
|
| 1716 |
vm_stop_cb = cb; |
| 1717 |
vm_stop_opaque = opaque; |
| 1718 |
return 0; |
| 1719 |
} |
| 1720 |
|
| 1721 |
void qemu_del_vm_stop_handler(VMStopHandler *cb, void *opaque) |
| 1722 |
{
|
| 1723 |
vm_stop_cb = NULL;
|
| 1724 |
} |
| 1725 |
|
| 1726 |
void vm_start(void) |
| 1727 |
{
|
| 1728 |
if (!vm_running) {
|
| 1729 |
cpu_enable_ticks(); |
| 1730 |
vm_running = 1;
|
| 1731 |
} |
| 1732 |
} |
| 1733 |
|
| 1734 |
void vm_stop(int reason) |
| 1735 |
{
|
| 1736 |
if (vm_running) {
|
| 1737 |
cpu_disable_ticks(); |
| 1738 |
vm_running = 0;
|
| 1739 |
if (reason != 0) { |
| 1740 |
if (vm_stop_cb) {
|
| 1741 |
vm_stop_cb(vm_stop_opaque, reason); |
| 1742 |
} |
| 1743 |
} |
| 1744 |
} |
| 1745 |
} |
| 1746 |
|
| 1747 |
int main_loop(void) |
| 1748 |
{
|
| 1749 |
#ifndef _WIN32
|
| 1750 |
struct pollfd ufds[MAX_IO_HANDLERS + 1], *pf; |
| 1751 |
IOHandlerRecord *ioh, *ioh_next; |
| 1752 |
uint8_t buf[4096];
|
| 1753 |
int n, max_size;
|
| 1754 |
#endif
|
| 1755 |
int ret, timeout;
|
| 1756 |
CPUState *env = global_env; |
| 1757 |
|
| 1758 |
for(;;) {
|
| 1759 |
if (vm_running) {
|
| 1760 |
ret = cpu_exec(env); |
| 1761 |
if (reset_requested) {
|
| 1762 |
ret = EXCP_INTERRUPT; |
| 1763 |
break;
|
| 1764 |
} |
| 1765 |
if (ret == EXCP_DEBUG) {
|
| 1766 |
vm_stop(EXCP_DEBUG); |
| 1767 |
} |
| 1768 |
/* if hlt instruction, we wait until the next IRQ */
|
| 1769 |
/* XXX: use timeout computed from timers */
|
| 1770 |
if (ret == EXCP_HLT)
|
| 1771 |
timeout = 10;
|
| 1772 |
else
|
| 1773 |
timeout = 0;
|
| 1774 |
} else {
|
| 1775 |
timeout = 10;
|
| 1776 |
} |
| 1777 |
|
| 1778 |
#ifdef _WIN32
|
| 1779 |
if (timeout > 0) |
| 1780 |
Sleep(timeout); |
| 1781 |
#else
|
| 1782 |
|
| 1783 |
/* poll any events */
|
| 1784 |
/* XXX: separate device handlers from system ones */
|
| 1785 |
pf = ufds; |
| 1786 |
for(ioh = first_io_handler; ioh != NULL; ioh = ioh->next) { |
| 1787 |
if (!ioh->fd_can_read) {
|
| 1788 |
max_size = 0;
|
| 1789 |
pf->fd = ioh->fd; |
| 1790 |
pf->events = POLLIN; |
| 1791 |
ioh->ufd = pf; |
| 1792 |
pf++; |
| 1793 |
} else {
|
| 1794 |
max_size = ioh->fd_can_read(ioh->opaque); |
| 1795 |
if (max_size > 0) { |
| 1796 |
if (max_size > sizeof(buf)) |
| 1797 |
max_size = sizeof(buf);
|
| 1798 |
pf->fd = ioh->fd; |
| 1799 |
pf->events = POLLIN; |
| 1800 |
ioh->ufd = pf; |
| 1801 |
pf++; |
| 1802 |
} else {
|
| 1803 |
ioh->ufd = NULL;
|
| 1804 |
} |
| 1805 |
} |
| 1806 |
ioh->max_size = max_size; |
| 1807 |
} |
| 1808 |
|
| 1809 |
ret = poll(ufds, pf - ufds, timeout); |
| 1810 |
if (ret > 0) { |
| 1811 |
/* XXX: better handling of removal */
|
| 1812 |
for(ioh = first_io_handler; ioh != NULL; ioh = ioh_next) { |
| 1813 |
ioh_next = ioh->next; |
| 1814 |
pf = ioh->ufd; |
| 1815 |
if (pf) {
|
| 1816 |
if (pf->revents & POLLIN) {
|
| 1817 |
if (ioh->max_size == 0) { |
| 1818 |
/* just a read event */
|
| 1819 |
ioh->fd_read(ioh->opaque, NULL, 0); |
| 1820 |
} else {
|
| 1821 |
n = read(ioh->fd, buf, ioh->max_size); |
| 1822 |
if (n >= 0) { |
| 1823 |
ioh->fd_read(ioh->opaque, buf, n); |
| 1824 |
} else if (errno != -EAGAIN) { |
| 1825 |
ioh->fd_read(ioh->opaque, NULL, -errno);
|
| 1826 |
} |
| 1827 |
} |
| 1828 |
} |
| 1829 |
} |
| 1830 |
} |
| 1831 |
} |
| 1832 |
|
| 1833 |
#if defined(CONFIG_SLIRP)
|
| 1834 |
/* XXX: merge with poll() */
|
| 1835 |
if (slirp_inited) {
|
| 1836 |
fd_set rfds, wfds, xfds; |
| 1837 |
int nfds;
|
| 1838 |
struct timeval tv;
|
| 1839 |
|
| 1840 |
nfds = -1;
|
| 1841 |
FD_ZERO(&rfds); |
| 1842 |
FD_ZERO(&wfds); |
| 1843 |
FD_ZERO(&xfds); |
| 1844 |
slirp_select_fill(&nfds, &rfds, &wfds, &xfds); |
| 1845 |
tv.tv_sec = 0;
|
| 1846 |
tv.tv_usec = 0;
|
| 1847 |
ret = select(nfds + 1, &rfds, &wfds, &xfds, &tv);
|
| 1848 |
if (ret >= 0) { |
| 1849 |
slirp_select_poll(&rfds, &wfds, &xfds); |
| 1850 |
} |
| 1851 |
} |
| 1852 |
#endif
|
| 1853 |
|
| 1854 |
#endif
|
| 1855 |
|
| 1856 |
if (vm_running) {
|
| 1857 |
qemu_run_timers(&active_timers[QEMU_TIMER_VIRTUAL], |
| 1858 |
qemu_get_clock(vm_clock)); |
| 1859 |
|
| 1860 |
if (audio_enabled) {
|
| 1861 |
/* XXX: add explicit timer */
|
| 1862 |
SB16_run(); |
| 1863 |
} |
| 1864 |
|
| 1865 |
/* run dma transfers, if any */
|
| 1866 |
DMA_run(); |
| 1867 |
} |
| 1868 |
|
| 1869 |
/* real time timers */
|
| 1870 |
qemu_run_timers(&active_timers[QEMU_TIMER_REALTIME], |
| 1871 |
qemu_get_clock(rt_clock)); |
| 1872 |
} |
| 1873 |
cpu_disable_ticks(); |
| 1874 |
return ret;
|
| 1875 |
} |
| 1876 |
|
| 1877 |
void help(void) |
| 1878 |
{
|
| 1879 |
printf("QEMU PC emulator version " QEMU_VERSION ", Copyright (c) 2003-2004 Fabrice Bellard\n" |
| 1880 |
"usage: %s [options] [disk_image]\n"
|
| 1881 |
"\n"
|
| 1882 |
"'disk_image' is a raw hard image image for IDE hard disk 0\n"
|
| 1883 |
"\n"
|
| 1884 |
"Standard options:\n"
|
| 1885 |
"-fda/-fdb file use 'file' as floppy disk 0/1 image\n"
|
| 1886 |
"-hda/-hdb file use 'file' as IDE hard disk 0/1 image\n"
|
| 1887 |
"-hdc/-hdd file use 'file' as IDE hard disk 2/3 image\n"
|
| 1888 |
"-cdrom file use 'file' as IDE cdrom image (cdrom is ide1 master)\n"
|
| 1889 |
"-boot [a|b|c|d] boot on floppy (a, b), hard disk (c) or CD-ROM (d)\n"
|
| 1890 |
"-snapshot write to temporary files instead of disk image files\n"
|
| 1891 |
"-m megs set virtual RAM size to megs MB\n"
|
| 1892 |
"-nographic disable graphical output and redirect serial I/Os to console\n"
|
| 1893 |
"-enable-audio enable audio support\n"
|
| 1894 |
"\n"
|
| 1895 |
"Network options:\n"
|
| 1896 |
"-nics n simulate 'n' network cards [default=1]\n"
|
| 1897 |
"-macaddr addr set the mac address of the first interface\n"
|
| 1898 |
"-n script set tap/tun network init script [default=%s]\n"
|
| 1899 |
"-tun-fd fd use this fd as already opened tap/tun interface\n"
|
| 1900 |
#ifdef CONFIG_SLIRP
|
| 1901 |
"-user-net use user mode network stack [default if no tap/tun script]\n"
|
| 1902 |
#endif
|
| 1903 |
"-dummy-net use dummy network stack\n"
|
| 1904 |
"\n"
|
| 1905 |
"Linux boot specific:\n"
|
| 1906 |
"-kernel bzImage use 'bzImage' as kernel image\n"
|
| 1907 |
"-append cmdline use 'cmdline' as kernel command line\n"
|
| 1908 |
"-initrd file use 'file' as initial ram disk\n"
|
| 1909 |
"\n"
|
| 1910 |
"Debug/Expert options:\n"
|
| 1911 |
"-s wait gdb connection to port %d\n"
|
| 1912 |
"-p port change gdb connection port\n"
|
| 1913 |
"-d item1,... output log to %s (use -d ? for a list of log items)\n"
|
| 1914 |
"-hdachs c,h,s force hard disk 0 geometry (usually qemu can guess it)\n"
|
| 1915 |
"-L path set the directory for the BIOS and VGA BIOS\n"
|
| 1916 |
#ifdef USE_CODE_COPY
|
| 1917 |
"-no-code-copy disable code copy acceleration\n"
|
| 1918 |
#endif
|
| 1919 |
|
| 1920 |
"\n"
|
| 1921 |
"During emulation, use C-a h to get terminal commands:\n",
|
| 1922 |
#ifdef CONFIG_SOFTMMU
|
| 1923 |
"qemu",
|
| 1924 |
#else
|
| 1925 |
"qemu-fast",
|
| 1926 |
#endif
|
| 1927 |
DEFAULT_NETWORK_SCRIPT, |
| 1928 |
DEFAULT_GDBSTUB_PORT, |
| 1929 |
"/tmp/qemu.log");
|
| 1930 |
term_print_help(); |
| 1931 |
#ifndef CONFIG_SOFTMMU
|
| 1932 |
printf("\n"
|
| 1933 |
"NOTE: this version of QEMU is faster but it needs slightly patched OSes to\n"
|
| 1934 |
"work. Please use the 'qemu' executable to have a more accurate (but slower)\n"
|
| 1935 |
"PC emulation.\n");
|
| 1936 |
#endif
|
| 1937 |
exit(1);
|
| 1938 |
} |
| 1939 |
|
| 1940 |
struct option long_options[] = {
|
| 1941 |
{ "initrd", 1, NULL, 0, },
|
| 1942 |
{ "hda", 1, NULL, 0, },
|
| 1943 |
{ "hdb", 1, NULL, 0, },
|
| 1944 |
{ "snapshot", 0, NULL, 0, },
|
| 1945 |
{ "hdachs", 1, NULL, 0, },
|
| 1946 |
{ "nographic", 0, NULL, 0, },
|
| 1947 |
{ "kernel", 1, NULL, 0, },
|
| 1948 |
{ "append", 1, NULL, 0, },
|
| 1949 |
{ "tun-fd", 1, NULL, 0, },
|
| 1950 |
{ "hdc", 1, NULL, 0, },
|
| 1951 |
{ "hdd", 1, NULL, 0, },
|
| 1952 |
{ "cdrom", 1, NULL, 0, },
|
| 1953 |
{ "boot", 1, NULL, 0, },
|
| 1954 |
{ "fda", 1, NULL, 0, },
|
| 1955 |
{ "fdb", 1, NULL, 0, },
|
| 1956 |
{ "no-code-copy", 0, NULL, 0 },
|
| 1957 |
{ "nics", 1, NULL, 0 },
|
| 1958 |
{ "macaddr", 1, NULL, 0 },
|
| 1959 |
{ "user-net", 0, NULL, 0 },
|
| 1960 |
{ "dummy-net", 0, NULL, 0 },
|
| 1961 |
{ "enable-audio", 0, NULL, 0 },
|
| 1962 |
{ NULL, 0, NULL, 0 },
|
| 1963 |
}; |
| 1964 |
|
| 1965 |
#if defined (TARGET_I386) && defined(USE_CODE_COPY)
|
| 1966 |
|
| 1967 |
/* this stack is only used during signal handling */
|
| 1968 |
#define SIGNAL_STACK_SIZE 32768 |
| 1969 |
|
| 1970 |
static uint8_t *signal_stack;
|
| 1971 |
|
| 1972 |
#endif
|
| 1973 |
|
| 1974 |
#define NET_IF_TUN 0 |
| 1975 |
#define NET_IF_USER 1 |
| 1976 |
#define NET_IF_DUMMY 2 |
| 1977 |
|
| 1978 |
int main(int argc, char **argv) |
| 1979 |
{
|
| 1980 |
#ifdef CONFIG_GDBSTUB
|
| 1981 |
int use_gdbstub, gdbstub_port;
|
| 1982 |
#endif
|
| 1983 |
int c, i, long_index, has_cdrom;
|
| 1984 |
int snapshot, linux_boot;
|
| 1985 |
CPUState *env; |
| 1986 |
const char *initrd_filename; |
| 1987 |
const char *hd_filename[MAX_DISKS], *fd_filename[MAX_FD]; |
| 1988 |
const char *kernel_filename, *kernel_cmdline; |
| 1989 |
DisplayState *ds = &display_state; |
| 1990 |
int cyls, heads, secs;
|
| 1991 |
int start_emulation = 1; |
| 1992 |
uint8_t macaddr[6];
|
| 1993 |
int net_if_type, nb_tun_fds, tun_fds[MAX_NICS];
|
| 1994 |
|
| 1995 |
#if !defined(CONFIG_SOFTMMU)
|
| 1996 |
/* we never want that malloc() uses mmap() */
|
| 1997 |
mallopt(M_MMAP_THRESHOLD, 4096 * 1024); |
| 1998 |
#endif
|
| 1999 |
initrd_filename = NULL;
|
| 2000 |
for(i = 0; i < MAX_FD; i++) |
| 2001 |
fd_filename[i] = NULL;
|
| 2002 |
for(i = 0; i < MAX_DISKS; i++) |
| 2003 |
hd_filename[i] = NULL;
|
| 2004 |
ram_size = 32 * 1024 * 1024; |
| 2005 |
vga_ram_size = VGA_RAM_SIZE; |
| 2006 |
pstrcpy(network_script, sizeof(network_script), DEFAULT_NETWORK_SCRIPT);
|
| 2007 |
#ifdef CONFIG_GDBSTUB
|
| 2008 |
use_gdbstub = 0;
|
| 2009 |
gdbstub_port = DEFAULT_GDBSTUB_PORT; |
| 2010 |
#endif
|
| 2011 |
snapshot = 0;
|
| 2012 |
nographic = 0;
|
| 2013 |
kernel_filename = NULL;
|
| 2014 |
kernel_cmdline = "";
|
| 2015 |
has_cdrom = 1;
|
| 2016 |
cyls = heads = secs = 0;
|
| 2017 |
|
| 2018 |
nb_tun_fds = 0;
|
| 2019 |
net_if_type = -1;
|
| 2020 |
nb_nics = 1;
|
| 2021 |
/* default mac address of the first network interface */
|
| 2022 |
macaddr[0] = 0x52; |
| 2023 |
macaddr[1] = 0x54; |
| 2024 |
macaddr[2] = 0x00; |
| 2025 |
macaddr[3] = 0x12; |
| 2026 |
macaddr[4] = 0x34; |
| 2027 |
macaddr[5] = 0x56; |
| 2028 |
|
| 2029 |
|
| 2030 |
for(;;) {
|
| 2031 |
c = getopt_long_only(argc, argv, "hm:d:n:sp:L:S", long_options, &long_index);
|
| 2032 |
if (c == -1) |
| 2033 |
break;
|
| 2034 |
switch(c) {
|
| 2035 |
case 0: |
| 2036 |
switch(long_index) {
|
| 2037 |
case 0: |
| 2038 |
initrd_filename = optarg; |
| 2039 |
break;
|
| 2040 |
case 1: |
| 2041 |
hd_filename[0] = optarg;
|
| 2042 |
break;
|
| 2043 |
case 2: |
| 2044 |
hd_filename[1] = optarg;
|
| 2045 |
break;
|
| 2046 |
case 3: |
| 2047 |
snapshot = 1;
|
| 2048 |
break;
|
| 2049 |
case 4: |
| 2050 |
{
|
| 2051 |
const char *p; |
| 2052 |
p = optarg; |
| 2053 |
cyls = strtol(p, (char **)&p, 0); |
| 2054 |
if (*p != ',') |
| 2055 |
goto chs_fail;
|
| 2056 |
p++; |
| 2057 |
heads = strtol(p, (char **)&p, 0); |
| 2058 |
if (*p != ',') |
| 2059 |
goto chs_fail;
|
| 2060 |
p++; |
| 2061 |
secs = strtol(p, (char **)&p, 0); |
| 2062 |
if (*p != '\0') { |
| 2063 |
chs_fail:
|
| 2064 |
cyls = 0;
|
| 2065 |
} |
| 2066 |
} |
| 2067 |
break;
|
| 2068 |
case 5: |
| 2069 |
nographic = 1;
|
| 2070 |
break;
|
| 2071 |
case 6: |
| 2072 |
kernel_filename = optarg; |
| 2073 |
break;
|
| 2074 |
case 7: |
| 2075 |
kernel_cmdline = optarg; |
| 2076 |
break;
|
| 2077 |
case 8: |
| 2078 |
{
|
| 2079 |
const char *p; |
| 2080 |
int fd;
|
| 2081 |
if (nb_tun_fds < MAX_NICS) {
|
| 2082 |
fd = strtol(optarg, (char **)&p, 0); |
| 2083 |
if (*p != '\0') { |
| 2084 |
fprintf(stderr, "qemu: invalid fd for network interface %d\n", nb_tun_fds);
|
| 2085 |
exit(1);
|
| 2086 |
} |
| 2087 |
tun_fds[nb_tun_fds++] = fd; |
| 2088 |
} |
| 2089 |
} |
| 2090 |
break;
|
| 2091 |
case 9: |
| 2092 |
hd_filename[2] = optarg;
|
| 2093 |
has_cdrom = 0;
|
| 2094 |
break;
|
| 2095 |
case 10: |
| 2096 |
hd_filename[3] = optarg;
|
| 2097 |
break;
|
| 2098 |
case 11: |
| 2099 |
hd_filename[2] = optarg;
|
| 2100 |
has_cdrom = 1;
|
| 2101 |
break;
|
| 2102 |
case 12: |
| 2103 |
boot_device = optarg[0];
|
| 2104 |
if (boot_device != 'a' && boot_device != 'b' && |
| 2105 |
boot_device != 'c' && boot_device != 'd') { |
| 2106 |
fprintf(stderr, "qemu: invalid boot device '%c'\n", boot_device);
|
| 2107 |
exit(1);
|
| 2108 |
} |
| 2109 |
break;
|
| 2110 |
case 13: |
| 2111 |
fd_filename[0] = optarg;
|
| 2112 |
break;
|
| 2113 |
case 14: |
| 2114 |
fd_filename[1] = optarg;
|
| 2115 |
break;
|
| 2116 |
case 15: |
| 2117 |
code_copy_enabled = 0;
|
| 2118 |
break;
|
| 2119 |
case 16: |
| 2120 |
nb_nics = atoi(optarg); |
| 2121 |
if (nb_nics < 1 || nb_nics > MAX_NICS) { |
| 2122 |
fprintf(stderr, "qemu: invalid number of network interfaces\n");
|
| 2123 |
exit(1);
|
| 2124 |
} |
| 2125 |
break;
|
| 2126 |
case 17: |
| 2127 |
{
|
| 2128 |
const char *p; |
| 2129 |
int i;
|
| 2130 |
p = optarg; |
| 2131 |
for(i = 0; i < 6; i++) { |
| 2132 |
macaddr[i] = strtol(p, (char **)&p, 16); |
| 2133 |
if (i == 5) { |
| 2134 |
if (*p != '\0') |
| 2135 |
goto macaddr_error;
|
| 2136 |
} else {
|
| 2137 |
if (*p != ':') { |
| 2138 |
macaddr_error:
|
| 2139 |
fprintf(stderr, "qemu: invalid syntax for ethernet address\n");
|
| 2140 |
exit(1);
|
| 2141 |
} |
| 2142 |
p++; |
| 2143 |
} |
| 2144 |
} |
| 2145 |
} |
| 2146 |
break;
|
| 2147 |
case 18: |
| 2148 |
net_if_type = NET_IF_USER; |
| 2149 |
break;
|
| 2150 |
case 19: |
| 2151 |
net_if_type = NET_IF_DUMMY; |
| 2152 |
break;
|
| 2153 |
case 20: |
| 2154 |
audio_enabled = 1;
|
| 2155 |
break;
|
| 2156 |
} |
| 2157 |
break;
|
| 2158 |
case 'h': |
| 2159 |
help(); |
| 2160 |
break;
|
| 2161 |
case 'm': |
| 2162 |
ram_size = atoi(optarg) * 1024 * 1024; |
| 2163 |
if (ram_size <= 0) |
| 2164 |
help(); |
| 2165 |
if (ram_size > PHYS_RAM_MAX_SIZE) {
|
| 2166 |
fprintf(stderr, "qemu: at most %d MB RAM can be simulated\n",
|
| 2167 |
PHYS_RAM_MAX_SIZE / (1024 * 1024)); |
| 2168 |
exit(1);
|
| 2169 |
} |
| 2170 |
break;
|
| 2171 |
case 'd': |
| 2172 |
{
|
| 2173 |
int mask;
|
| 2174 |
CPULogItem *item; |
| 2175 |
|
| 2176 |
mask = cpu_str_to_log_mask(optarg); |
| 2177 |
if (!mask) {
|
| 2178 |
printf("Log items (comma separated):\n");
|
| 2179 |
for(item = cpu_log_items; item->mask != 0; item++) { |
| 2180 |
printf("%-10s %s\n", item->name, item->help);
|
| 2181 |
} |
| 2182 |
exit(1);
|
| 2183 |
} |
| 2184 |
cpu_set_log(mask); |
| 2185 |
} |
| 2186 |
break;
|
| 2187 |
case 'n': |
| 2188 |
pstrcpy(network_script, sizeof(network_script), optarg);
|
| 2189 |
break;
|
| 2190 |
#ifdef CONFIG_GDBSTUB
|
| 2191 |
case 's': |
| 2192 |
use_gdbstub = 1;
|
| 2193 |
break;
|
| 2194 |
case 'p': |
| 2195 |
gdbstub_port = atoi(optarg); |
| 2196 |
break;
|
| 2197 |
#endif
|
| 2198 |
case 'L': |
| 2199 |
bios_dir = optarg; |
| 2200 |
break;
|
| 2201 |
case 'S': |
| 2202 |
start_emulation = 0;
|
| 2203 |
break;
|
| 2204 |
} |
| 2205 |
} |
| 2206 |
|
| 2207 |
if (optind < argc) {
|
| 2208 |
hd_filename[0] = argv[optind++];
|
| 2209 |
} |
| 2210 |
|
| 2211 |
linux_boot = (kernel_filename != NULL);
|
| 2212 |
|
| 2213 |
if (!linux_boot && hd_filename[0] == '\0' && hd_filename[2] == '\0' && |
| 2214 |
fd_filename[0] == '\0') |
| 2215 |
help(); |
| 2216 |
|
| 2217 |
/* boot to cd by default if no hard disk */
|
| 2218 |
if (hd_filename[0] == '\0' && boot_device == 'c') { |
| 2219 |
if (fd_filename[0] != '\0') |
| 2220 |
boot_device = 'a';
|
| 2221 |
else
|
| 2222 |
boot_device = 'd';
|
| 2223 |
} |
| 2224 |
|
| 2225 |
#if !defined(CONFIG_SOFTMMU)
|
| 2226 |
/* must avoid mmap() usage of glibc by setting a buffer "by hand" */
|
| 2227 |
{
|
| 2228 |
static uint8_t stdout_buf[4096]; |
| 2229 |
setvbuf(stdout, stdout_buf, _IOLBF, sizeof(stdout_buf));
|
| 2230 |
} |
| 2231 |
#else
|
| 2232 |
setvbuf(stdout, NULL, _IOLBF, 0); |
| 2233 |
#endif
|
| 2234 |
|
| 2235 |
/* init host network redirectors */
|
| 2236 |
if (net_if_type == -1) { |
| 2237 |
net_if_type = NET_IF_TUN; |
| 2238 |
#if defined(CONFIG_SLIRP)
|
| 2239 |
if (access(network_script, R_OK) < 0) { |
| 2240 |
net_if_type = NET_IF_USER; |
| 2241 |
} |
| 2242 |
#endif
|
| 2243 |
} |
| 2244 |
|
| 2245 |
for(i = 0; i < nb_nics; i++) { |
| 2246 |
NetDriverState *nd = &nd_table[i]; |
| 2247 |
nd->index = i; |
| 2248 |
/* init virtual mac address */
|
| 2249 |
nd->macaddr[0] = macaddr[0]; |
| 2250 |
nd->macaddr[1] = macaddr[1]; |
| 2251 |
nd->macaddr[2] = macaddr[2]; |
| 2252 |
nd->macaddr[3] = macaddr[3]; |
| 2253 |
nd->macaddr[4] = macaddr[4]; |
| 2254 |
nd->macaddr[5] = macaddr[5] + i; |
| 2255 |
switch(net_if_type) {
|
| 2256 |
#if defined(CONFIG_SLIRP)
|
| 2257 |
case NET_IF_USER:
|
| 2258 |
net_slirp_init(nd); |
| 2259 |
break;
|
| 2260 |
#endif
|
| 2261 |
#if !defined(_WIN32)
|
| 2262 |
case NET_IF_TUN:
|
| 2263 |
if (i < nb_tun_fds) {
|
| 2264 |
net_fd_init(nd, tun_fds[i]); |
| 2265 |
} else {
|
| 2266 |
if (net_tun_init(nd) < 0) |
| 2267 |
net_dummy_init(nd); |
| 2268 |
} |
| 2269 |
break;
|
| 2270 |
#endif
|
| 2271 |
case NET_IF_DUMMY:
|
| 2272 |
default:
|
| 2273 |
net_dummy_init(nd); |
| 2274 |
break;
|
| 2275 |
} |
| 2276 |
} |
| 2277 |
|
| 2278 |
/* init the memory */
|
| 2279 |
phys_ram_size = ram_size + vga_ram_size; |
| 2280 |
|
| 2281 |
#ifdef CONFIG_SOFTMMU
|
| 2282 |
#ifdef _BSD
|
| 2283 |
/* mallocs are always aligned on BSD. */
|
| 2284 |
phys_ram_base = malloc(phys_ram_size); |
| 2285 |
#else
|
| 2286 |
phys_ram_base = memalign(TARGET_PAGE_SIZE, phys_ram_size); |
| 2287 |
#endif
|
| 2288 |
if (!phys_ram_base) {
|
| 2289 |
fprintf(stderr, "Could not allocate physical memory\n");
|
| 2290 |
exit(1);
|
| 2291 |
} |
| 2292 |
#else
|
| 2293 |
/* as we must map the same page at several addresses, we must use
|
| 2294 |
a fd */
|
| 2295 |
{
|
| 2296 |
const char *tmpdir; |
| 2297 |
|
| 2298 |
tmpdir = getenv("QEMU_TMPDIR");
|
| 2299 |
if (!tmpdir)
|
| 2300 |
tmpdir = "/tmp";
|
| 2301 |
snprintf(phys_ram_file, sizeof(phys_ram_file), "%s/vlXXXXXX", tmpdir); |
| 2302 |
if (mkstemp(phys_ram_file) < 0) { |
| 2303 |
fprintf(stderr, "Could not create temporary memory file '%s'\n",
|
| 2304 |
phys_ram_file); |
| 2305 |
exit(1);
|
| 2306 |
} |
| 2307 |
phys_ram_fd = open(phys_ram_file, O_CREAT | O_TRUNC | O_RDWR, 0600);
|
| 2308 |
if (phys_ram_fd < 0) { |
| 2309 |
fprintf(stderr, "Could not open temporary memory file '%s'\n",
|
| 2310 |
phys_ram_file); |
| 2311 |
exit(1);
|
| 2312 |
} |
| 2313 |
ftruncate(phys_ram_fd, phys_ram_size); |
| 2314 |
unlink(phys_ram_file); |
| 2315 |
phys_ram_base = mmap(get_mmap_addr(phys_ram_size), |
| 2316 |
phys_ram_size, |
| 2317 |
PROT_WRITE | PROT_READ, MAP_SHARED | MAP_FIXED, |
| 2318 |
phys_ram_fd, 0);
|
| 2319 |
if (phys_ram_base == MAP_FAILED) {
|
| 2320 |
fprintf(stderr, "Could not map physical memory\n");
|
| 2321 |
exit(1);
|
| 2322 |
} |
| 2323 |
} |
| 2324 |
#endif
|
| 2325 |
|
| 2326 |
/* we always create the cdrom drive, even if no disk is there */
|
| 2327 |
if (has_cdrom) {
|
| 2328 |
bs_table[2] = bdrv_new("cdrom"); |
| 2329 |
bdrv_set_type_hint(bs_table[2], BDRV_TYPE_CDROM);
|
| 2330 |
} |
| 2331 |
|
| 2332 |
/* open the virtual block devices */
|
| 2333 |
for(i = 0; i < MAX_DISKS; i++) { |
| 2334 |
if (hd_filename[i]) {
|
| 2335 |
if (!bs_table[i]) {
|
| 2336 |
char buf[64]; |
| 2337 |
snprintf(buf, sizeof(buf), "hd%c", i + 'a'); |
| 2338 |
bs_table[i] = bdrv_new(buf); |
| 2339 |
} |
| 2340 |
if (bdrv_open(bs_table[i], hd_filename[i], snapshot) < 0) { |
| 2341 |
fprintf(stderr, "qemu: could not open hard disk image '%s\n",
|
| 2342 |
hd_filename[i]); |
| 2343 |
exit(1);
|
| 2344 |
} |
| 2345 |
if (i == 0 && cyls != 0) |
| 2346 |
bdrv_set_geometry_hint(bs_table[i], cyls, heads, secs); |
| 2347 |
} |
| 2348 |
} |
| 2349 |
|
| 2350 |
/* we always create at least one floppy disk */
|
| 2351 |
fd_table[0] = bdrv_new("fda"); |
| 2352 |
bdrv_set_type_hint(fd_table[0], BDRV_TYPE_FLOPPY);
|
| 2353 |
|
| 2354 |
for(i = 0; i < MAX_FD; i++) { |
| 2355 |
if (fd_filename[i]) {
|
| 2356 |
if (!fd_table[i]) {
|
| 2357 |
char buf[64]; |
| 2358 |
snprintf(buf, sizeof(buf), "fd%c", i + 'a'); |
| 2359 |
fd_table[i] = bdrv_new(buf); |
| 2360 |
bdrv_set_type_hint(fd_table[i], BDRV_TYPE_FLOPPY); |
| 2361 |
} |
| 2362 |
if (fd_filename[i] != '\0') { |
| 2363 |
if (bdrv_open(fd_table[i], fd_filename[i], snapshot) < 0) { |
| 2364 |
fprintf(stderr, "qemu: could not open floppy disk image '%s'\n",
|
| 2365 |
fd_filename[i]); |
| 2366 |
exit(1);
|
| 2367 |
} |
| 2368 |
} |
| 2369 |
} |
| 2370 |
} |
| 2371 |
|
| 2372 |
/* init CPU state */
|
| 2373 |
env = cpu_init(); |
| 2374 |
global_env = env; |
| 2375 |
cpu_single_env = env; |
| 2376 |
|
| 2377 |
register_savevm("timer", 0, 1, timer_save, timer_load, env); |
| 2378 |
register_savevm("cpu", 0, 1, cpu_save, cpu_load, env); |
| 2379 |
register_savevm("ram", 0, 1, ram_save, ram_load, NULL); |
| 2380 |
|
| 2381 |
init_ioports(); |
| 2382 |
cpu_calibrate_ticks(); |
| 2383 |
|
| 2384 |
/* terminal init */
|
| 2385 |
if (nographic) {
|
| 2386 |
dumb_display_init(ds); |
| 2387 |
} else {
|
| 2388 |
#ifdef CONFIG_SDL
|
| 2389 |
sdl_display_init(ds); |
| 2390 |
#else
|
| 2391 |
dumb_display_init(ds); |
| 2392 |
#endif
|
| 2393 |
} |
| 2394 |
|
| 2395 |
/* setup cpu signal handlers for MMU / self modifying code handling */
|
| 2396 |
#if !defined(CONFIG_SOFTMMU)
|
| 2397 |
|
| 2398 |
#if defined (TARGET_I386) && defined(USE_CODE_COPY)
|
| 2399 |
{
|
| 2400 |
stack_t stk; |
| 2401 |
signal_stack = memalign(16, SIGNAL_STACK_SIZE);
|
| 2402 |
stk.ss_sp = signal_stack; |
| 2403 |
stk.ss_size = SIGNAL_STACK_SIZE; |
| 2404 |
stk.ss_flags = 0;
|
| 2405 |
|
| 2406 |
if (sigaltstack(&stk, NULL) < 0) { |
| 2407 |
perror("sigaltstack");
|
| 2408 |
exit(1);
|
| 2409 |
} |
| 2410 |
} |
| 2411 |
#endif
|
| 2412 |
{
|
| 2413 |
struct sigaction act;
|
| 2414 |
|
| 2415 |
sigfillset(&act.sa_mask); |
| 2416 |
act.sa_flags = SA_SIGINFO; |
| 2417 |
#if defined (TARGET_I386) && defined(USE_CODE_COPY)
|
| 2418 |
act.sa_flags |= SA_ONSTACK; |
| 2419 |
#endif
|
| 2420 |
act.sa_sigaction = host_segv_handler; |
| 2421 |
sigaction(SIGSEGV, &act, NULL);
|
| 2422 |
sigaction(SIGBUS, &act, NULL);
|
| 2423 |
#if defined (TARGET_I386) && defined(USE_CODE_COPY)
|
| 2424 |
sigaction(SIGFPE, &act, NULL);
|
| 2425 |
#endif
|
| 2426 |
} |
| 2427 |
#endif
|
| 2428 |
|
| 2429 |
#ifndef _WIN32
|
| 2430 |
{
|
| 2431 |
struct sigaction act;
|
| 2432 |
sigfillset(&act.sa_mask); |
| 2433 |
act.sa_flags = 0;
|
| 2434 |
act.sa_handler = SIG_IGN; |
| 2435 |
sigaction(SIGPIPE, &act, NULL);
|
| 2436 |
} |
| 2437 |
#endif
|
| 2438 |
init_timers(); |
| 2439 |
|
| 2440 |
#if defined(TARGET_I386)
|
| 2441 |
pc_init(ram_size, vga_ram_size, boot_device, |
| 2442 |
ds, fd_filename, snapshot, |
| 2443 |
kernel_filename, kernel_cmdline, initrd_filename); |
| 2444 |
#elif defined(TARGET_PPC)
|
| 2445 |
ppc_init(ram_size, vga_ram_size, boot_device, |
| 2446 |
ds, fd_filename, snapshot, |
| 2447 |
kernel_filename, kernel_cmdline, initrd_filename); |
| 2448 |
#endif
|
| 2449 |
|
| 2450 |
/* launched after the device init so that it can display or not a
|
| 2451 |
banner */
|
| 2452 |
monitor_init(); |
| 2453 |
|
| 2454 |
gui_timer = qemu_new_timer(rt_clock, gui_update, NULL);
|
| 2455 |
qemu_mod_timer(gui_timer, qemu_get_clock(rt_clock)); |
| 2456 |
|
| 2457 |
#ifdef CONFIG_GDBSTUB
|
| 2458 |
if (use_gdbstub) {
|
| 2459 |
if (gdbserver_start(gdbstub_port) < 0) { |
| 2460 |
fprintf(stderr, "Could not open gdbserver socket on port %d\n",
|
| 2461 |
gdbstub_port); |
| 2462 |
exit(1);
|
| 2463 |
} else {
|
| 2464 |
printf("Waiting gdb connection on port %d\n", gdbstub_port);
|
| 2465 |
} |
| 2466 |
} else
|
| 2467 |
#endif
|
| 2468 |
if (start_emulation)
|
| 2469 |
{
|
| 2470 |
vm_start(); |
| 2471 |
} |
| 2472 |
term_init(); |
| 2473 |
main_loop(); |
| 2474 |
quit_timers(); |
| 2475 |
return 0; |
| 2476 |
} |