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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 <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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#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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#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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#ifdef TARGET_PPC
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#define DEFAULT_RAM_SIZE 144 |
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#else
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#define DEFAULT_RAM_SIZE 32 |
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#endif
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/* in ms */
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#define GUI_REFRESH_INTERVAL 30 |
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/* XXX: use a two level table to limit memory usage */
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#define MAX_IOPORTS 65536 |
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const char *bios_dir = CONFIG_QEMU_SHAREDIR; |
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char phys_ram_file[1024]; |
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CPUState *global_env; |
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CPUState *cpu_single_env; |
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void *ioport_opaque[MAX_IOPORTS];
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IOPortReadFunc *ioport_read_table[3][MAX_IOPORTS];
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IOPortWriteFunc *ioport_write_table[3][MAX_IOPORTS];
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BlockDriverState *bs_table[MAX_DISKS], *fd_table[MAX_FD]; |
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int vga_ram_size;
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int bios_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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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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int pci_enabled = 1; |
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int prep_enabled = 0; |
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int rtc_utc = 1; |
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int cirrus_vga_enabled = 0; |
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int graphic_width = 640; |
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int graphic_height = 480; |
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int graphic_depth = 15; |
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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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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 isa_unassign_ioport(int start, int length) |
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{ |
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int i;
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for(i = start; i < start + length; i++) {
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ioport_read_table[0][i] = default_ioport_readb;
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ioport_read_table[1][i] = default_ioport_readw;
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ioport_read_table[2][i] = default_ioport_readl;
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ioport_write_table[0][i] = default_ioport_writeb;
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ioport_write_table[1][i] = default_ioport_writew;
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ioport_write_table[2][i] = default_ioport_writel;
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} |
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} |
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void pstrcpy(char *buf, int buf_size, const char *str) |
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{ |
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int c;
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char *q = buf;
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if (buf_size <= 0) |
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return;
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for(;;) {
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c = *str++; |
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if (c == 0 || q >= buf + buf_size - 1) |
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break;
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*q++ = c; |
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} |
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*q = '\0';
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} |
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/* strcat and truncate. */
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char *pstrcat(char *buf, int buf_size, const char *s) |
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{ |
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int len;
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len = strlen(buf); |
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if (len < buf_size)
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pstrcpy(buf + len, buf_size - len, s); |
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return buf;
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} |
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/* return the size or -1 if error */
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int get_image_size(const char *filename) |
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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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close(fd); |
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return size;
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} |
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/* return the size or -1 if error */
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int load_image(const char *filename, uint8_t *addr) |
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{ |
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int fd, size;
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fd = open(filename, O_RDONLY | O_BINARY); |
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if (fd < 0) |
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return -1; |
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size = lseek(fd, 0, SEEK_END);
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lseek(fd, 0, SEEK_SET);
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if (read(fd, addr, size) != size) {
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close(fd); |
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return -1; |
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} |
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close(fd); |
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return size;
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} |
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void cpu_outb(CPUState *env, int addr, int val) |
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{ |
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#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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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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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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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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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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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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} |
384 |
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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; |
389 |
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va_start(ap, fmt); |
391 |
fprintf(stderr, "qemu: hardware error: ");
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vfprintf(stderr, fmt, ap); |
393 |
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); |
396 |
#else
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cpu_dump_state(global_env, stderr, 0);
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#endif
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399 |
va_end(ap); |
400 |
abort(); |
401 |
} |
402 |
|
403 |
/***********************************************************/
|
404 |
/* keyboard/mouse */
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405 |
|
406 |
static QEMUPutKBDEvent *qemu_put_kbd_event;
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407 |
static void *qemu_put_kbd_event_opaque; |
408 |
static QEMUPutMouseEvent *qemu_put_mouse_event;
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409 |
static void *qemu_put_mouse_event_opaque; |
410 |
|
411 |
void qemu_add_kbd_event_handler(QEMUPutKBDEvent *func, void *opaque) |
412 |
{ |
413 |
qemu_put_kbd_event_opaque = opaque; |
414 |
qemu_put_kbd_event = func; |
415 |
} |
416 |
|
417 |
void qemu_add_mouse_event_handler(QEMUPutMouseEvent *func, void *opaque) |
418 |
{ |
419 |
qemu_put_mouse_event_opaque = opaque; |
420 |
qemu_put_mouse_event = func; |
421 |
} |
422 |
|
423 |
void kbd_put_keycode(int keycode) |
424 |
{ |
425 |
if (qemu_put_kbd_event) {
|
426 |
qemu_put_kbd_event(qemu_put_kbd_event_opaque, keycode); |
427 |
} |
428 |
} |
429 |
|
430 |
void kbd_mouse_event(int dx, int dy, int dz, int buttons_state) |
431 |
{ |
432 |
if (qemu_put_mouse_event) {
|
433 |
qemu_put_mouse_event(qemu_put_mouse_event_opaque, |
434 |
dx, dy, dz, buttons_state); |
435 |
} |
436 |
} |
437 |
|
438 |
/***********************************************************/
|
439 |
/* timers */
|
440 |
|
441 |
#if defined(__powerpc__)
|
442 |
|
443 |
static inline uint32_t get_tbl(void) |
444 |
{ |
445 |
uint32_t tbl; |
446 |
asm volatile("mftb %0" : "=r" (tbl)); |
447 |
return tbl;
|
448 |
} |
449 |
|
450 |
static inline uint32_t get_tbu(void) |
451 |
{ |
452 |
uint32_t tbl; |
453 |
asm volatile("mftbu %0" : "=r" (tbl)); |
454 |
return tbl;
|
455 |
} |
456 |
|
457 |
int64_t cpu_get_real_ticks(void)
|
458 |
{ |
459 |
uint32_t l, h, h1; |
460 |
/* NOTE: we test if wrapping has occurred */
|
461 |
do {
|
462 |
h = get_tbu(); |
463 |
l = get_tbl(); |
464 |
h1 = get_tbu(); |
465 |
} while (h != h1);
|
466 |
return ((int64_t)h << 32) | l; |
467 |
} |
468 |
|
469 |
#elif defined(__i386__)
|
470 |
|
471 |
int64_t cpu_get_real_ticks(void)
|
472 |
{ |
473 |
int64_t val; |
474 |
asm volatile ("rdtsc" : "=A" (val)); |
475 |
return val;
|
476 |
} |
477 |
|
478 |
#elif defined(__x86_64__)
|
479 |
|
480 |
int64_t cpu_get_real_ticks(void)
|
481 |
{ |
482 |
uint32_t low,high; |
483 |
int64_t val; |
484 |
asm volatile("rdtsc" : "=a" (low), "=d" (high)); |
485 |
val = high; |
486 |
val <<= 32;
|
487 |
val |= low; |
488 |
return val;
|
489 |
} |
490 |
|
491 |
#else
|
492 |
#error unsupported CPU
|
493 |
#endif
|
494 |
|
495 |
static int64_t cpu_ticks_offset;
|
496 |
static int cpu_ticks_enabled; |
497 |
|
498 |
static inline int64_t cpu_get_ticks(void) |
499 |
{ |
500 |
if (!cpu_ticks_enabled) {
|
501 |
return cpu_ticks_offset;
|
502 |
} else {
|
503 |
return cpu_get_real_ticks() + cpu_ticks_offset;
|
504 |
} |
505 |
} |
506 |
|
507 |
/* enable cpu_get_ticks() */
|
508 |
void cpu_enable_ticks(void) |
509 |
{ |
510 |
if (!cpu_ticks_enabled) {
|
511 |
cpu_ticks_offset -= cpu_get_real_ticks(); |
512 |
cpu_ticks_enabled = 1;
|
513 |
} |
514 |
} |
515 |
|
516 |
/* disable cpu_get_ticks() : the clock is stopped. You must not call
|
517 |
cpu_get_ticks() after that. */
|
518 |
void cpu_disable_ticks(void) |
519 |
{ |
520 |
if (cpu_ticks_enabled) {
|
521 |
cpu_ticks_offset = cpu_get_ticks(); |
522 |
cpu_ticks_enabled = 0;
|
523 |
} |
524 |
} |
525 |
|
526 |
static int64_t get_clock(void) |
527 |
{ |
528 |
#ifdef _WIN32
|
529 |
struct _timeb tb;
|
530 |
_ftime(&tb); |
531 |
return ((int64_t)tb.time * 1000 + (int64_t)tb.millitm) * 1000; |
532 |
#else
|
533 |
struct timeval tv;
|
534 |
gettimeofday(&tv, NULL);
|
535 |
return tv.tv_sec * 1000000LL + tv.tv_usec; |
536 |
#endif
|
537 |
} |
538 |
|
539 |
void cpu_calibrate_ticks(void) |
540 |
{ |
541 |
int64_t usec, ticks; |
542 |
|
543 |
usec = get_clock(); |
544 |
ticks = cpu_get_real_ticks(); |
545 |
#ifdef _WIN32
|
546 |
Sleep(50);
|
547 |
#else
|
548 |
usleep(50 * 1000); |
549 |
#endif
|
550 |
usec = get_clock() - usec; |
551 |
ticks = cpu_get_real_ticks() - ticks; |
552 |
ticks_per_sec = (ticks * 1000000LL + (usec >> 1)) / usec; |
553 |
} |
554 |
|
555 |
/* compute with 96 bit intermediate result: (a*b)/c */
|
556 |
uint64_t muldiv64(uint64_t a, uint32_t b, uint32_t c) |
557 |
{ |
558 |
union {
|
559 |
uint64_t ll; |
560 |
struct {
|
561 |
#ifdef WORDS_BIGENDIAN
|
562 |
uint32_t high, low; |
563 |
#else
|
564 |
uint32_t low, high; |
565 |
#endif
|
566 |
} l; |
567 |
} u, res; |
568 |
uint64_t rl, rh; |
569 |
|
570 |
u.ll = a; |
571 |
rl = (uint64_t)u.l.low * (uint64_t)b; |
572 |
rh = (uint64_t)u.l.high * (uint64_t)b; |
573 |
rh += (rl >> 32);
|
574 |
res.l.high = rh / c; |
575 |
res.l.low = (((rh % c) << 32) + (rl & 0xffffffff)) / c; |
576 |
return res.ll;
|
577 |
} |
578 |
|
579 |
#define QEMU_TIMER_REALTIME 0 |
580 |
#define QEMU_TIMER_VIRTUAL 1 |
581 |
|
582 |
struct QEMUClock {
|
583 |
int type;
|
584 |
/* XXX: add frequency */
|
585 |
}; |
586 |
|
587 |
struct QEMUTimer {
|
588 |
QEMUClock *clock; |
589 |
int64_t expire_time; |
590 |
QEMUTimerCB *cb; |
591 |
void *opaque;
|
592 |
struct QEMUTimer *next;
|
593 |
}; |
594 |
|
595 |
QEMUClock *rt_clock; |
596 |
QEMUClock *vm_clock; |
597 |
|
598 |
static QEMUTimer *active_timers[2]; |
599 |
#ifdef _WIN32
|
600 |
static MMRESULT timerID;
|
601 |
#else
|
602 |
/* frequency of the times() clock tick */
|
603 |
static int timer_freq; |
604 |
#endif
|
605 |
|
606 |
QEMUClock *qemu_new_clock(int type)
|
607 |
{ |
608 |
QEMUClock *clock; |
609 |
clock = qemu_mallocz(sizeof(QEMUClock));
|
610 |
if (!clock)
|
611 |
return NULL; |
612 |
clock->type = type; |
613 |
return clock;
|
614 |
} |
615 |
|
616 |
QEMUTimer *qemu_new_timer(QEMUClock *clock, QEMUTimerCB *cb, void *opaque)
|
617 |
{ |
618 |
QEMUTimer *ts; |
619 |
|
620 |
ts = qemu_mallocz(sizeof(QEMUTimer));
|
621 |
ts->clock = clock; |
622 |
ts->cb = cb; |
623 |
ts->opaque = opaque; |
624 |
return ts;
|
625 |
} |
626 |
|
627 |
void qemu_free_timer(QEMUTimer *ts)
|
628 |
{ |
629 |
qemu_free(ts); |
630 |
} |
631 |
|
632 |
/* stop a timer, but do not dealloc it */
|
633 |
void qemu_del_timer(QEMUTimer *ts)
|
634 |
{ |
635 |
QEMUTimer **pt, *t; |
636 |
|
637 |
/* NOTE: this code must be signal safe because
|
638 |
qemu_timer_expired() can be called from a signal. */
|
639 |
pt = &active_timers[ts->clock->type]; |
640 |
for(;;) {
|
641 |
t = *pt; |
642 |
if (!t)
|
643 |
break;
|
644 |
if (t == ts) {
|
645 |
*pt = t->next; |
646 |
break;
|
647 |
} |
648 |
pt = &t->next; |
649 |
} |
650 |
} |
651 |
|
652 |
/* modify the current timer so that it will be fired when current_time
|
653 |
>= expire_time. The corresponding callback will be called. */
|
654 |
void qemu_mod_timer(QEMUTimer *ts, int64_t expire_time)
|
655 |
{ |
656 |
QEMUTimer **pt, *t; |
657 |
|
658 |
qemu_del_timer(ts); |
659 |
|
660 |
/* add the timer in the sorted list */
|
661 |
/* NOTE: this code must be signal safe because
|
662 |
qemu_timer_expired() can be called from a signal. */
|
663 |
pt = &active_timers[ts->clock->type]; |
664 |
for(;;) {
|
665 |
t = *pt; |
666 |
if (!t)
|
667 |
break;
|
668 |
if (t->expire_time > expire_time)
|
669 |
break;
|
670 |
pt = &t->next; |
671 |
} |
672 |
ts->expire_time = expire_time; |
673 |
ts->next = *pt; |
674 |
*pt = ts; |
675 |
} |
676 |
|
677 |
int qemu_timer_pending(QEMUTimer *ts)
|
678 |
{ |
679 |
QEMUTimer *t; |
680 |
for(t = active_timers[ts->clock->type]; t != NULL; t = t->next) { |
681 |
if (t == ts)
|
682 |
return 1; |
683 |
} |
684 |
return 0; |
685 |
} |
686 |
|
687 |
static inline int qemu_timer_expired(QEMUTimer *timer_head, int64_t current_time) |
688 |
{ |
689 |
if (!timer_head)
|
690 |
return 0; |
691 |
return (timer_head->expire_time <= current_time);
|
692 |
} |
693 |
|
694 |
static void qemu_run_timers(QEMUTimer **ptimer_head, int64_t current_time) |
695 |
{ |
696 |
QEMUTimer *ts; |
697 |
|
698 |
for(;;) {
|
699 |
ts = *ptimer_head; |
700 |
if (ts->expire_time > current_time)
|
701 |
break;
|
702 |
/* remove timer from the list before calling the callback */
|
703 |
*ptimer_head = ts->next; |
704 |
ts->next = NULL;
|
705 |
|
706 |
/* run the callback (the timer list can be modified) */
|
707 |
ts->cb(ts->opaque); |
708 |
} |
709 |
} |
710 |
|
711 |
int64_t qemu_get_clock(QEMUClock *clock) |
712 |
{ |
713 |
switch(clock->type) {
|
714 |
case QEMU_TIMER_REALTIME:
|
715 |
#ifdef _WIN32
|
716 |
return GetTickCount();
|
717 |
#else
|
718 |
{ |
719 |
struct tms tp;
|
720 |
|
721 |
/* Note that using gettimeofday() is not a good solution
|
722 |
for timers because its value change when the date is
|
723 |
modified. */
|
724 |
if (timer_freq == 100) { |
725 |
return times(&tp) * 10; |
726 |
} else {
|
727 |
return ((int64_t)times(&tp) * 1000) / timer_freq; |
728 |
} |
729 |
} |
730 |
#endif
|
731 |
default:
|
732 |
case QEMU_TIMER_VIRTUAL:
|
733 |
return cpu_get_ticks();
|
734 |
} |
735 |
} |
736 |
|
737 |
/* save a timer */
|
738 |
void qemu_put_timer(QEMUFile *f, QEMUTimer *ts)
|
739 |
{ |
740 |
uint64_t expire_time; |
741 |
|
742 |
if (qemu_timer_pending(ts)) {
|
743 |
expire_time = ts->expire_time; |
744 |
} else {
|
745 |
expire_time = -1;
|
746 |
} |
747 |
qemu_put_be64(f, expire_time); |
748 |
} |
749 |
|
750 |
void qemu_get_timer(QEMUFile *f, QEMUTimer *ts)
|
751 |
{ |
752 |
uint64_t expire_time; |
753 |
|
754 |
expire_time = qemu_get_be64(f); |
755 |
if (expire_time != -1) { |
756 |
qemu_mod_timer(ts, expire_time); |
757 |
} else {
|
758 |
qemu_del_timer(ts); |
759 |
} |
760 |
} |
761 |
|
762 |
static void timer_save(QEMUFile *f, void *opaque) |
763 |
{ |
764 |
if (cpu_ticks_enabled) {
|
765 |
hw_error("cannot save state if virtual timers are running");
|
766 |
} |
767 |
qemu_put_be64s(f, &cpu_ticks_offset); |
768 |
qemu_put_be64s(f, &ticks_per_sec); |
769 |
} |
770 |
|
771 |
static int timer_load(QEMUFile *f, void *opaque, int version_id) |
772 |
{ |
773 |
if (version_id != 1) |
774 |
return -EINVAL;
|
775 |
if (cpu_ticks_enabled) {
|
776 |
return -EINVAL;
|
777 |
} |
778 |
qemu_get_be64s(f, &cpu_ticks_offset); |
779 |
qemu_get_be64s(f, &ticks_per_sec); |
780 |
return 0; |
781 |
} |
782 |
|
783 |
#ifdef _WIN32
|
784 |
void CALLBACK host_alarm_handler(UINT uTimerID, UINT uMsg,
|
785 |
DWORD_PTR dwUser, DWORD_PTR dw1, DWORD_PTR dw2) |
786 |
#else
|
787 |
static void host_alarm_handler(int host_signum) |
788 |
#endif
|
789 |
{ |
790 |
if (qemu_timer_expired(active_timers[QEMU_TIMER_VIRTUAL],
|
791 |
qemu_get_clock(vm_clock)) || |
792 |
qemu_timer_expired(active_timers[QEMU_TIMER_REALTIME], |
793 |
qemu_get_clock(rt_clock))) { |
794 |
/* stop the cpu because a timer occured */
|
795 |
cpu_interrupt(global_env, CPU_INTERRUPT_EXIT); |
796 |
} |
797 |
} |
798 |
|
799 |
#ifndef _WIN32
|
800 |
|
801 |
#if defined(__linux__)
|
802 |
|
803 |
#define RTC_FREQ 1024 |
804 |
|
805 |
static int rtc_fd; |
806 |
|
807 |
static int start_rtc_timer(void) |
808 |
{ |
809 |
rtc_fd = open("/dev/rtc", O_RDONLY);
|
810 |
if (rtc_fd < 0) |
811 |
return -1; |
812 |
if (ioctl(rtc_fd, RTC_IRQP_SET, RTC_FREQ) < 0) { |
813 |
fprintf(stderr, "Could not configure '/dev/rtc' to have a 1024 Hz timer. This is not a fatal\n"
|
814 |
"error, but for better emulation accuracy either use a 2.6 host Linux kernel or\n"
|
815 |
"type 'echo 1024 > /proc/sys/dev/rtc/max-user-freq' as root.\n");
|
816 |
goto fail;
|
817 |
} |
818 |
if (ioctl(rtc_fd, RTC_PIE_ON, 0) < 0) { |
819 |
fail:
|
820 |
close(rtc_fd); |
821 |
return -1; |
822 |
} |
823 |
pit_min_timer_count = PIT_FREQ / RTC_FREQ; |
824 |
return 0; |
825 |
} |
826 |
|
827 |
#else
|
828 |
|
829 |
static int start_rtc_timer(void) |
830 |
{ |
831 |
return -1; |
832 |
} |
833 |
|
834 |
#endif /* !defined(__linux__) */ |
835 |
|
836 |
#endif /* !defined(_WIN32) */ |
837 |
|
838 |
static void init_timers(void) |
839 |
{ |
840 |
rt_clock = qemu_new_clock(QEMU_TIMER_REALTIME); |
841 |
vm_clock = qemu_new_clock(QEMU_TIMER_VIRTUAL); |
842 |
|
843 |
#ifdef _WIN32
|
844 |
{ |
845 |
int count=0; |
846 |
timerID = timeSetEvent(10, // interval (ms) |
847 |
0, // resolution |
848 |
host_alarm_handler, // function
|
849 |
(DWORD)&count, // user parameter
|
850 |
TIME_PERIODIC | TIME_CALLBACK_FUNCTION); |
851 |
if( !timerID ) {
|
852 |
perror("failed timer alarm");
|
853 |
exit(1);
|
854 |
} |
855 |
} |
856 |
pit_min_timer_count = ((uint64_t)10000 * PIT_FREQ) / 1000000; |
857 |
#else
|
858 |
{ |
859 |
struct sigaction act;
|
860 |
struct itimerval itv;
|
861 |
|
862 |
/* get times() syscall frequency */
|
863 |
timer_freq = sysconf(_SC_CLK_TCK); |
864 |
|
865 |
/* timer signal */
|
866 |
sigfillset(&act.sa_mask); |
867 |
act.sa_flags = 0;
|
868 |
#if defined (TARGET_I386) && defined(USE_CODE_COPY)
|
869 |
act.sa_flags |= SA_ONSTACK; |
870 |
#endif
|
871 |
act.sa_handler = host_alarm_handler; |
872 |
sigaction(SIGALRM, &act, NULL);
|
873 |
|
874 |
itv.it_interval.tv_sec = 0;
|
875 |
itv.it_interval.tv_usec = 1000;
|
876 |
itv.it_value.tv_sec = 0;
|
877 |
itv.it_value.tv_usec = 10 * 1000; |
878 |
setitimer(ITIMER_REAL, &itv, NULL);
|
879 |
/* we probe the tick duration of the kernel to inform the user if
|
880 |
the emulated kernel requested a too high timer frequency */
|
881 |
getitimer(ITIMER_REAL, &itv); |
882 |
|
883 |
if (itv.it_interval.tv_usec > 1000) { |
884 |
/* try to use /dev/rtc to have a faster timer */
|
885 |
if (start_rtc_timer() < 0) |
886 |
goto use_itimer;
|
887 |
/* disable itimer */
|
888 |
itv.it_interval.tv_sec = 0;
|
889 |
itv.it_interval.tv_usec = 0;
|
890 |
itv.it_value.tv_sec = 0;
|
891 |
itv.it_value.tv_usec = 0;
|
892 |
setitimer(ITIMER_REAL, &itv, NULL);
|
893 |
|
894 |
/* use the RTC */
|
895 |
sigaction(SIGIO, &act, NULL);
|
896 |
fcntl(rtc_fd, F_SETFL, O_ASYNC); |
897 |
fcntl(rtc_fd, F_SETOWN, getpid()); |
898 |
} else {
|
899 |
use_itimer:
|
900 |
pit_min_timer_count = ((uint64_t)itv.it_interval.tv_usec * |
901 |
PIT_FREQ) / 1000000;
|
902 |
} |
903 |
} |
904 |
#endif
|
905 |
} |
906 |
|
907 |
void quit_timers(void) |
908 |
{ |
909 |
#ifdef _WIN32
|
910 |
timeKillEvent(timerID); |
911 |
#endif
|
912 |
} |
913 |
|
914 |
/***********************************************************/
|
915 |
/* serial device */
|
916 |
|
917 |
#ifdef _WIN32
|
918 |
|
919 |
int serial_open_device(void) |
920 |
{ |
921 |
return -1; |
922 |
} |
923 |
|
924 |
#else
|
925 |
|
926 |
int serial_open_device(void) |
927 |
{ |
928 |
char slave_name[1024]; |
929 |
int master_fd, slave_fd;
|
930 |
|
931 |
if (serial_console == NULL && nographic) { |
932 |
/* use console for serial port */
|
933 |
return 0; |
934 |
} else {
|
935 |
#if 0
|
936 |
/* Not satisfying */
|
937 |
if (openpty(&master_fd, &slave_fd, slave_name, NULL, NULL) < 0) {
|
938 |
fprintf(stderr, "warning: could not create pseudo terminal for serial port\n");
|
939 |
return -1;
|
940 |
}
|
941 |
fprintf(stderr, "Serial port redirected to %s\n", slave_name);
|
942 |
return master_fd;
|
943 |
#else
|
944 |
return -1; |
945 |
#endif
|
946 |
} |
947 |
} |
948 |
|
949 |
#endif
|
950 |
|
951 |
/***********************************************************/
|
952 |
/* Linux network device redirectors */
|
953 |
|
954 |
void hex_dump(FILE *f, const uint8_t *buf, int size) |
955 |
{ |
956 |
int len, i, j, c;
|
957 |
|
958 |
for(i=0;i<size;i+=16) { |
959 |
len = size - i; |
960 |
if (len > 16) |
961 |
len = 16;
|
962 |
fprintf(f, "%08x ", i);
|
963 |
for(j=0;j<16;j++) { |
964 |
if (j < len)
|
965 |
fprintf(f, " %02x", buf[i+j]);
|
966 |
else
|
967 |
fprintf(f, " ");
|
968 |
} |
969 |
fprintf(f, " ");
|
970 |
for(j=0;j<len;j++) { |
971 |
c = buf[i+j]; |
972 |
if (c < ' ' || c > '~') |
973 |
c = '.';
|
974 |
fprintf(f, "%c", c);
|
975 |
} |
976 |
fprintf(f, "\n");
|
977 |
} |
978 |
} |
979 |
|
980 |
void qemu_send_packet(NetDriverState *nd, const uint8_t *buf, int size) |
981 |
{ |
982 |
nd->send_packet(nd, buf, size); |
983 |
} |
984 |
|
985 |
void qemu_add_read_packet(NetDriverState *nd, IOCanRWHandler *fd_can_read,
|
986 |
IOReadHandler *fd_read, void *opaque)
|
987 |
{ |
988 |
nd->add_read_packet(nd, fd_can_read, fd_read, opaque); |
989 |
} |
990 |
|
991 |
/* dummy network adapter */
|
992 |
|
993 |
static void dummy_send_packet(NetDriverState *nd, const uint8_t *buf, int size) |
994 |
{ |
995 |
} |
996 |
|
997 |
static void dummy_add_read_packet(NetDriverState *nd, |
998 |
IOCanRWHandler *fd_can_read, |
999 |
IOReadHandler *fd_read, void *opaque)
|
1000 |
{ |
1001 |
} |
1002 |
|
1003 |
static int net_dummy_init(NetDriverState *nd) |
1004 |
{ |
1005 |
nd->send_packet = dummy_send_packet; |
1006 |
nd->add_read_packet = dummy_add_read_packet; |
1007 |
pstrcpy(nd->ifname, sizeof(nd->ifname), "dummy"); |
1008 |
return 0; |
1009 |
} |
1010 |
|
1011 |
#if defined(CONFIG_SLIRP)
|
1012 |
|
1013 |
/* slirp network adapter */
|
1014 |
|
1015 |
static void *slirp_fd_opaque; |
1016 |
static IOCanRWHandler *slirp_fd_can_read;
|
1017 |
static IOReadHandler *slirp_fd_read;
|
1018 |
static int slirp_inited; |
1019 |
|
1020 |
int slirp_can_output(void) |
1021 |
{ |
1022 |
return slirp_fd_can_read(slirp_fd_opaque);
|
1023 |
} |
1024 |
|
1025 |
void slirp_output(const uint8_t *pkt, int pkt_len) |
1026 |
{ |
1027 |
#if 0
|
1028 |
printf("output:\n");
|
1029 |
hex_dump(stdout, pkt, pkt_len);
|
1030 |
#endif
|
1031 |
slirp_fd_read(slirp_fd_opaque, pkt, pkt_len); |
1032 |
} |
1033 |
|
1034 |
static void slirp_send_packet(NetDriverState *nd, const uint8_t *buf, int size) |
1035 |
{ |
1036 |
#if 0
|
1037 |
printf("input:\n");
|
1038 |
hex_dump(stdout, buf, size);
|
1039 |
#endif
|
1040 |
slirp_input(buf, size); |
1041 |
} |
1042 |
|
1043 |
static void slirp_add_read_packet(NetDriverState *nd, |
1044 |
IOCanRWHandler *fd_can_read, |
1045 |
IOReadHandler *fd_read, void *opaque)
|
1046 |
{ |
1047 |
slirp_fd_opaque = opaque; |
1048 |
slirp_fd_can_read = fd_can_read; |
1049 |
slirp_fd_read = fd_read; |
1050 |
} |
1051 |
|
1052 |
static int net_slirp_init(NetDriverState *nd) |
1053 |
{ |
1054 |
if (!slirp_inited) {
|
1055 |
slirp_inited = 1;
|
1056 |
slirp_init(); |
1057 |
} |
1058 |
nd->send_packet = slirp_send_packet; |
1059 |
nd->add_read_packet = slirp_add_read_packet; |
1060 |
pstrcpy(nd->ifname, sizeof(nd->ifname), "slirp"); |
1061 |
return 0; |
1062 |
} |
1063 |
|
1064 |
#endif /* CONFIG_SLIRP */ |
1065 |
|
1066 |
#if !defined(_WIN32)
|
1067 |
#ifdef _BSD
|
1068 |
static int tun_open(char *ifname, int ifname_size) |
1069 |
{ |
1070 |
int fd;
|
1071 |
char *dev;
|
1072 |
struct stat s;
|
1073 |
|
1074 |
fd = open("/dev/tap", O_RDWR);
|
1075 |
if (fd < 0) { |
1076 |
fprintf(stderr, "warning: could not open /dev/tap: no virtual network emulation\n");
|
1077 |
return -1; |
1078 |
} |
1079 |
|
1080 |
fstat(fd, &s); |
1081 |
dev = devname(s.st_rdev, S_IFCHR); |
1082 |
pstrcpy(ifname, ifname_size, dev); |
1083 |
|
1084 |
fcntl(fd, F_SETFL, O_NONBLOCK); |
1085 |
return fd;
|
1086 |
} |
1087 |
#else
|
1088 |
static int tun_open(char *ifname, int ifname_size) |
1089 |
{ |
1090 |
struct ifreq ifr;
|
1091 |
int fd, ret;
|
1092 |
|
1093 |
fd = open("/dev/net/tun", O_RDWR);
|
1094 |
if (fd < 0) { |
1095 |
fprintf(stderr, "warning: could not open /dev/net/tun: no virtual network emulation\n");
|
1096 |
return -1; |
1097 |
} |
1098 |
memset(&ifr, 0, sizeof(ifr)); |
1099 |
ifr.ifr_flags = IFF_TAP | IFF_NO_PI; |
1100 |
pstrcpy(ifr.ifr_name, IFNAMSIZ, "tun%d");
|
1101 |
ret = ioctl(fd, TUNSETIFF, (void *) &ifr);
|
1102 |
if (ret != 0) { |
1103 |
fprintf(stderr, "warning: could not configure /dev/net/tun: no virtual network emulation\n");
|
1104 |
close(fd); |
1105 |
return -1; |
1106 |
} |
1107 |
printf("Connected to host network interface: %s\n", ifr.ifr_name);
|
1108 |
pstrcpy(ifname, ifname_size, ifr.ifr_name); |
1109 |
fcntl(fd, F_SETFL, O_NONBLOCK); |
1110 |
return fd;
|
1111 |
} |
1112 |
#endif
|
1113 |
|
1114 |
static void tun_send_packet(NetDriverState *nd, const uint8_t *buf, int size) |
1115 |
{ |
1116 |
write(nd->fd, buf, size); |
1117 |
} |
1118 |
|
1119 |
static void tun_add_read_packet(NetDriverState *nd, |
1120 |
IOCanRWHandler *fd_can_read, |
1121 |
IOReadHandler *fd_read, void *opaque)
|
1122 |
{ |
1123 |
qemu_add_fd_read_handler(nd->fd, fd_can_read, fd_read, opaque); |
1124 |
} |
1125 |
|
1126 |
static int net_tun_init(NetDriverState *nd) |
1127 |
{ |
1128 |
int pid, status;
|
1129 |
char *args[3]; |
1130 |
char **parg;
|
1131 |
|
1132 |
nd->fd = tun_open(nd->ifname, sizeof(nd->ifname));
|
1133 |
if (nd->fd < 0) |
1134 |
return -1; |
1135 |
|
1136 |
/* try to launch network init script */
|
1137 |
pid = fork(); |
1138 |
if (pid >= 0) { |
1139 |
if (pid == 0) { |
1140 |
parg = args; |
1141 |
*parg++ = network_script; |
1142 |
*parg++ = nd->ifname; |
1143 |
*parg++ = NULL;
|
1144 |
execv(network_script, args); |
1145 |
exit(1);
|
1146 |
} |
1147 |
while (waitpid(pid, &status, 0) != pid); |
1148 |
if (!WIFEXITED(status) ||
|
1149 |
WEXITSTATUS(status) != 0) {
|
1150 |
fprintf(stderr, "%s: could not launch network script\n",
|
1151 |
network_script); |
1152 |
} |
1153 |
} |
1154 |
nd->send_packet = tun_send_packet; |
1155 |
nd->add_read_packet = tun_add_read_packet; |
1156 |
return 0; |
1157 |
} |
1158 |
|
1159 |
static int net_fd_init(NetDriverState *nd, int fd) |
1160 |
{ |
1161 |
nd->fd = fd; |
1162 |
nd->send_packet = tun_send_packet; |
1163 |
nd->add_read_packet = tun_add_read_packet; |
1164 |
pstrcpy(nd->ifname, sizeof(nd->ifname), "tunfd"); |
1165 |
return 0; |
1166 |
} |
1167 |
|
1168 |
#endif /* !_WIN32 */ |
1169 |
|
1170 |
/***********************************************************/
|
1171 |
/* dumb display */
|
1172 |
|
1173 |
#ifdef _WIN32
|
1174 |
|
1175 |
static void term_exit(void) |
1176 |
{ |
1177 |
} |
1178 |
|
1179 |
static void term_init(void) |
1180 |
{ |
1181 |
} |
1182 |
|
1183 |
#else
|
1184 |
|
1185 |
/* init terminal so that we can grab keys */
|
1186 |
static struct termios oldtty; |
1187 |
|
1188 |
static void term_exit(void) |
1189 |
{ |
1190 |
tcsetattr (0, TCSANOW, &oldtty);
|
1191 |
} |
1192 |
|
1193 |
static void term_init(void) |
1194 |
{ |
1195 |
struct termios tty;
|
1196 |
|
1197 |
tcgetattr (0, &tty);
|
1198 |
oldtty = tty; |
1199 |
|
1200 |
tty.c_iflag &= ~(IGNBRK|BRKINT|PARMRK|ISTRIP |
1201 |
|INLCR|IGNCR|ICRNL|IXON); |
1202 |
tty.c_oflag |= OPOST; |
1203 |
tty.c_lflag &= ~(ECHO|ECHONL|ICANON|IEXTEN); |
1204 |
/* if graphical mode, we allow Ctrl-C handling */
|
1205 |
if (nographic)
|
1206 |
tty.c_lflag &= ~ISIG; |
1207 |
tty.c_cflag &= ~(CSIZE|PARENB); |
1208 |
tty.c_cflag |= CS8; |
1209 |
tty.c_cc[VMIN] = 1;
|
1210 |
tty.c_cc[VTIME] = 0;
|
1211 |
|
1212 |
tcsetattr (0, TCSANOW, &tty);
|
1213 |
|
1214 |
atexit(term_exit); |
1215 |
|
1216 |
fcntl(0, F_SETFL, O_NONBLOCK);
|
1217 |
} |
1218 |
|
1219 |
#endif
|
1220 |
|
1221 |
static void dumb_update(DisplayState *ds, int x, int y, int w, int h) |
1222 |
{ |
1223 |
} |
1224 |
|
1225 |
static void dumb_resize(DisplayState *ds, int w, int h) |
1226 |
{ |
1227 |
} |
1228 |
|
1229 |
static void dumb_refresh(DisplayState *ds) |
1230 |
{ |
1231 |
vga_update_display(); |
1232 |
} |
1233 |
|
1234 |
void dumb_display_init(DisplayState *ds)
|
1235 |
{ |
1236 |
ds->data = NULL;
|
1237 |
ds->linesize = 0;
|
1238 |
ds->depth = 0;
|
1239 |
ds->dpy_update = dumb_update; |
1240 |
ds->dpy_resize = dumb_resize; |
1241 |
ds->dpy_refresh = dumb_refresh; |
1242 |
} |
1243 |
|
1244 |
#if !defined(CONFIG_SOFTMMU)
|
1245 |
/***********************************************************/
|
1246 |
/* cpu signal handler */
|
1247 |
static void host_segv_handler(int host_signum, siginfo_t *info, |
1248 |
void *puc)
|
1249 |
{ |
1250 |
if (cpu_signal_handler(host_signum, info, puc))
|
1251 |
return;
|
1252 |
term_exit(); |
1253 |
abort(); |
1254 |
} |
1255 |
#endif
|
1256 |
|
1257 |
/***********************************************************/
|
1258 |
/* I/O handling */
|
1259 |
|
1260 |
#define MAX_IO_HANDLERS 64 |
1261 |
|
1262 |
typedef struct IOHandlerRecord { |
1263 |
int fd;
|
1264 |
IOCanRWHandler *fd_can_read; |
1265 |
IOReadHandler *fd_read; |
1266 |
void *opaque;
|
1267 |
/* temporary data */
|
1268 |
struct pollfd *ufd;
|
1269 |
int max_size;
|
1270 |
struct IOHandlerRecord *next;
|
1271 |
} IOHandlerRecord; |
1272 |
|
1273 |
static IOHandlerRecord *first_io_handler;
|
1274 |
|
1275 |
int qemu_add_fd_read_handler(int fd, IOCanRWHandler *fd_can_read, |
1276 |
IOReadHandler *fd_read, void *opaque)
|
1277 |
{ |
1278 |
IOHandlerRecord *ioh; |
1279 |
|
1280 |
ioh = qemu_mallocz(sizeof(IOHandlerRecord));
|
1281 |
if (!ioh)
|
1282 |
return -1; |
1283 |
ioh->fd = fd; |
1284 |
ioh->fd_can_read = fd_can_read; |
1285 |
ioh->fd_read = fd_read; |
1286 |
ioh->opaque = opaque; |
1287 |
ioh->next = first_io_handler; |
1288 |
first_io_handler = ioh; |
1289 |
return 0; |
1290 |
} |
1291 |
|
1292 |
void qemu_del_fd_read_handler(int fd) |
1293 |
{ |
1294 |
IOHandlerRecord **pioh, *ioh; |
1295 |
|
1296 |
pioh = &first_io_handler; |
1297 |
for(;;) {
|
1298 |
ioh = *pioh; |
1299 |
if (ioh == NULL) |
1300 |
break;
|
1301 |
if (ioh->fd == fd) {
|
1302 |
*pioh = ioh->next; |
1303 |
break;
|
1304 |
} |
1305 |
pioh = &ioh->next; |
1306 |
} |
1307 |
} |
1308 |
|
1309 |
/***********************************************************/
|
1310 |
/* savevm/loadvm support */
|
1311 |
|
1312 |
void qemu_put_buffer(QEMUFile *f, const uint8_t *buf, int size) |
1313 |
{ |
1314 |
fwrite(buf, 1, size, f);
|
1315 |
} |
1316 |
|
1317 |
void qemu_put_byte(QEMUFile *f, int v) |
1318 |
{ |
1319 |
fputc(v, f); |
1320 |
} |
1321 |
|
1322 |
void qemu_put_be16(QEMUFile *f, unsigned int v) |
1323 |
{ |
1324 |
qemu_put_byte(f, v >> 8);
|
1325 |
qemu_put_byte(f, v); |
1326 |
} |
1327 |
|
1328 |
void qemu_put_be32(QEMUFile *f, unsigned int v) |
1329 |
{ |
1330 |
qemu_put_byte(f, v >> 24);
|
1331 |
qemu_put_byte(f, v >> 16);
|
1332 |
qemu_put_byte(f, v >> 8);
|
1333 |
qemu_put_byte(f, v); |
1334 |
} |
1335 |
|
1336 |
void qemu_put_be64(QEMUFile *f, uint64_t v)
|
1337 |
{ |
1338 |
qemu_put_be32(f, v >> 32);
|
1339 |
qemu_put_be32(f, v); |
1340 |
} |
1341 |
|
1342 |
int qemu_get_buffer(QEMUFile *f, uint8_t *buf, int size) |
1343 |
{ |
1344 |
return fread(buf, 1, size, f); |
1345 |
} |
1346 |
|
1347 |
int qemu_get_byte(QEMUFile *f)
|
1348 |
{ |
1349 |
int v;
|
1350 |
v = fgetc(f); |
1351 |
if (v == EOF) |
1352 |
return 0; |
1353 |
else
|
1354 |
return v;
|
1355 |
} |
1356 |
|
1357 |
unsigned int qemu_get_be16(QEMUFile *f) |
1358 |
{ |
1359 |
unsigned int v; |
1360 |
v = qemu_get_byte(f) << 8;
|
1361 |
v |= qemu_get_byte(f); |
1362 |
return v;
|
1363 |
} |
1364 |
|
1365 |
unsigned int qemu_get_be32(QEMUFile *f) |
1366 |
{ |
1367 |
unsigned int v; |
1368 |
v = qemu_get_byte(f) << 24;
|
1369 |
v |= qemu_get_byte(f) << 16;
|
1370 |
v |= qemu_get_byte(f) << 8;
|
1371 |
v |= qemu_get_byte(f); |
1372 |
return v;
|
1373 |
} |
1374 |
|
1375 |
uint64_t qemu_get_be64(QEMUFile *f) |
1376 |
{ |
1377 |
uint64_t v; |
1378 |
v = (uint64_t)qemu_get_be32(f) << 32;
|
1379 |
v |= qemu_get_be32(f); |
1380 |
return v;
|
1381 |
} |
1382 |
|
1383 |
int64_t qemu_ftell(QEMUFile *f) |
1384 |
{ |
1385 |
return ftell(f);
|
1386 |
} |
1387 |
|
1388 |
int64_t qemu_fseek(QEMUFile *f, int64_t pos, int whence)
|
1389 |
{ |
1390 |
if (fseek(f, pos, whence) < 0) |
1391 |
return -1; |
1392 |
return ftell(f);
|
1393 |
} |
1394 |
|
1395 |
typedef struct SaveStateEntry { |
1396 |
char idstr[256]; |
1397 |
int instance_id;
|
1398 |
int version_id;
|
1399 |
SaveStateHandler *save_state; |
1400 |
LoadStateHandler *load_state; |
1401 |
void *opaque;
|
1402 |
struct SaveStateEntry *next;
|
1403 |
} SaveStateEntry; |
1404 |
|
1405 |
static SaveStateEntry *first_se;
|
1406 |
|
1407 |
int register_savevm(const char *idstr, |
1408 |
int instance_id,
|
1409 |
int version_id,
|
1410 |
SaveStateHandler *save_state, |
1411 |
LoadStateHandler *load_state, |
1412 |
void *opaque)
|
1413 |
{ |
1414 |
SaveStateEntry *se, **pse; |
1415 |
|
1416 |
se = qemu_malloc(sizeof(SaveStateEntry));
|
1417 |
if (!se)
|
1418 |
return -1; |
1419 |
pstrcpy(se->idstr, sizeof(se->idstr), idstr);
|
1420 |
se->instance_id = instance_id; |
1421 |
se->version_id = version_id; |
1422 |
se->save_state = save_state; |
1423 |
se->load_state = load_state; |
1424 |
se->opaque = opaque; |
1425 |
se->next = NULL;
|
1426 |
|
1427 |
/* add at the end of list */
|
1428 |
pse = &first_se; |
1429 |
while (*pse != NULL) |
1430 |
pse = &(*pse)->next; |
1431 |
*pse = se; |
1432 |
return 0; |
1433 |
} |
1434 |
|
1435 |
#define QEMU_VM_FILE_MAGIC 0x5145564d |
1436 |
#define QEMU_VM_FILE_VERSION 0x00000001 |
1437 |
|
1438 |
int qemu_savevm(const char *filename) |
1439 |
{ |
1440 |
SaveStateEntry *se; |
1441 |
QEMUFile *f; |
1442 |
int len, len_pos, cur_pos, saved_vm_running, ret;
|
1443 |
|
1444 |
saved_vm_running = vm_running; |
1445 |
vm_stop(0);
|
1446 |
|
1447 |
f = fopen(filename, "wb");
|
1448 |
if (!f) {
|
1449 |
ret = -1;
|
1450 |
goto the_end;
|
1451 |
} |
1452 |
|
1453 |
qemu_put_be32(f, QEMU_VM_FILE_MAGIC); |
1454 |
qemu_put_be32(f, QEMU_VM_FILE_VERSION); |
1455 |
|
1456 |
for(se = first_se; se != NULL; se = se->next) { |
1457 |
/* ID string */
|
1458 |
len = strlen(se->idstr); |
1459 |
qemu_put_byte(f, len); |
1460 |
qemu_put_buffer(f, se->idstr, len); |
1461 |
|
1462 |
qemu_put_be32(f, se->instance_id); |
1463 |
qemu_put_be32(f, se->version_id); |
1464 |
|
1465 |
/* record size: filled later */
|
1466 |
len_pos = ftell(f); |
1467 |
qemu_put_be32(f, 0);
|
1468 |
|
1469 |
se->save_state(f, se->opaque); |
1470 |
|
1471 |
/* fill record size */
|
1472 |
cur_pos = ftell(f); |
1473 |
len = ftell(f) - len_pos - 4;
|
1474 |
fseek(f, len_pos, SEEK_SET); |
1475 |
qemu_put_be32(f, len); |
1476 |
fseek(f, cur_pos, SEEK_SET); |
1477 |
} |
1478 |
|
1479 |
fclose(f); |
1480 |
ret = 0;
|
1481 |
the_end:
|
1482 |
if (saved_vm_running)
|
1483 |
vm_start(); |
1484 |
return ret;
|
1485 |
} |
1486 |
|
1487 |
static SaveStateEntry *find_se(const char *idstr, int instance_id) |
1488 |
{ |
1489 |
SaveStateEntry *se; |
1490 |
|
1491 |
for(se = first_se; se != NULL; se = se->next) { |
1492 |
if (!strcmp(se->idstr, idstr) &&
|
1493 |
instance_id == se->instance_id) |
1494 |
return se;
|
1495 |
} |
1496 |
return NULL; |
1497 |
} |
1498 |
|
1499 |
int qemu_loadvm(const char *filename) |
1500 |
{ |
1501 |
SaveStateEntry *se; |
1502 |
QEMUFile *f; |
1503 |
int len, cur_pos, ret, instance_id, record_len, version_id;
|
1504 |
int saved_vm_running;
|
1505 |
unsigned int v; |
1506 |
char idstr[256]; |
1507 |
|
1508 |
saved_vm_running = vm_running; |
1509 |
vm_stop(0);
|
1510 |
|
1511 |
f = fopen(filename, "rb");
|
1512 |
if (!f) {
|
1513 |
ret = -1;
|
1514 |
goto the_end;
|
1515 |
} |
1516 |
|
1517 |
v = qemu_get_be32(f); |
1518 |
if (v != QEMU_VM_FILE_MAGIC)
|
1519 |
goto fail;
|
1520 |
v = qemu_get_be32(f); |
1521 |
if (v != QEMU_VM_FILE_VERSION) {
|
1522 |
fail:
|
1523 |
fclose(f); |
1524 |
ret = -1;
|
1525 |
goto the_end;
|
1526 |
} |
1527 |
for(;;) {
|
1528 |
#if defined (DO_TB_FLUSH)
|
1529 |
tb_flush(global_env); |
1530 |
#endif
|
1531 |
len = qemu_get_byte(f); |
1532 |
if (feof(f))
|
1533 |
break;
|
1534 |
qemu_get_buffer(f, idstr, len); |
1535 |
idstr[len] = '\0';
|
1536 |
instance_id = qemu_get_be32(f); |
1537 |
version_id = qemu_get_be32(f); |
1538 |
record_len = qemu_get_be32(f); |
1539 |
#if 0
|
1540 |
printf("idstr=%s instance=0x%x version=%d len=%d\n",
|
1541 |
idstr, instance_id, version_id, record_len);
|
1542 |
#endif
|
1543 |
cur_pos = ftell(f); |
1544 |
se = find_se(idstr, instance_id); |
1545 |
if (!se) {
|
1546 |
fprintf(stderr, "qemu: warning: instance 0x%x of device '%s' not present in current VM\n",
|
1547 |
instance_id, idstr); |
1548 |
} else {
|
1549 |
ret = se->load_state(f, se->opaque, version_id); |
1550 |
if (ret < 0) { |
1551 |
fprintf(stderr, "qemu: warning: error while loading state for instance 0x%x of device '%s'\n",
|
1552 |
instance_id, idstr); |
1553 |
} |
1554 |
} |
1555 |
/* always seek to exact end of record */
|
1556 |
qemu_fseek(f, cur_pos + record_len, SEEK_SET); |
1557 |
} |
1558 |
fclose(f); |
1559 |
ret = 0;
|
1560 |
the_end:
|
1561 |
if (saved_vm_running)
|
1562 |
vm_start(); |
1563 |
return ret;
|
1564 |
} |
1565 |
|
1566 |
/***********************************************************/
|
1567 |
/* cpu save/restore */
|
1568 |
|
1569 |
#if defined(TARGET_I386)
|
1570 |
|
1571 |
static void cpu_put_seg(QEMUFile *f, SegmentCache *dt) |
1572 |
{ |
1573 |
qemu_put_be32(f, (uint32_t)dt->base); |
1574 |
qemu_put_be32(f, dt->limit); |
1575 |
qemu_put_be32(f, dt->flags); |
1576 |
} |
1577 |
|
1578 |
static void cpu_get_seg(QEMUFile *f, SegmentCache *dt) |
1579 |
{ |
1580 |
dt->base = (uint8_t *)qemu_get_be32(f); |
1581 |
dt->limit = qemu_get_be32(f); |
1582 |
dt->flags = qemu_get_be32(f); |
1583 |
} |
1584 |
|
1585 |
void cpu_save(QEMUFile *f, void *opaque) |
1586 |
{ |
1587 |
CPUState *env = opaque; |
1588 |
uint16_t fptag, fpus, fpuc; |
1589 |
uint32_t hflags; |
1590 |
int i;
|
1591 |
|
1592 |
for(i = 0; i < 8; i++) |
1593 |
qemu_put_be32s(f, &env->regs[i]); |
1594 |
qemu_put_be32s(f, &env->eip); |
1595 |
qemu_put_be32s(f, &env->eflags); |
1596 |
qemu_put_be32s(f, &env->eflags); |
1597 |
hflags = env->hflags; /* XXX: suppress most of the redundant hflags */
|
1598 |
qemu_put_be32s(f, &hflags); |
1599 |
|
1600 |
/* FPU */
|
1601 |
fpuc = env->fpuc; |
1602 |
fpus = (env->fpus & ~0x3800) | (env->fpstt & 0x7) << 11; |
1603 |
fptag = 0;
|
1604 |
for (i=7; i>=0; i--) { |
1605 |
fptag <<= 2;
|
1606 |
if (env->fptags[i]) {
|
1607 |
fptag |= 3;
|
1608 |
} |
1609 |
} |
1610 |
|
1611 |
qemu_put_be16s(f, &fpuc); |
1612 |
qemu_put_be16s(f, &fpus); |
1613 |
qemu_put_be16s(f, &fptag); |
1614 |
|
1615 |
for(i = 0; i < 8; i++) { |
1616 |
uint64_t mant; |
1617 |
uint16_t exp; |
1618 |
cpu_get_fp80(&mant, &exp, env->fpregs[i]); |
1619 |
qemu_put_be64(f, mant); |
1620 |
qemu_put_be16(f, exp); |
1621 |
} |
1622 |
|
1623 |
for(i = 0; i < 6; i++) |
1624 |
cpu_put_seg(f, &env->segs[i]); |
1625 |
cpu_put_seg(f, &env->ldt); |
1626 |
cpu_put_seg(f, &env->tr); |
1627 |
cpu_put_seg(f, &env->gdt); |
1628 |
cpu_put_seg(f, &env->idt); |
1629 |
|
1630 |
qemu_put_be32s(f, &env->sysenter_cs); |
1631 |
qemu_put_be32s(f, &env->sysenter_esp); |
1632 |
qemu_put_be32s(f, &env->sysenter_eip); |
1633 |
|
1634 |
qemu_put_be32s(f, &env->cr[0]);
|
1635 |
qemu_put_be32s(f, &env->cr[2]);
|
1636 |
qemu_put_be32s(f, &env->cr[3]);
|
1637 |
qemu_put_be32s(f, &env->cr[4]);
|
1638 |
|
1639 |
for(i = 0; i < 8; i++) |
1640 |
qemu_put_be32s(f, &env->dr[i]); |
1641 |
|
1642 |
/* MMU */
|
1643 |
qemu_put_be32s(f, &env->a20_mask); |
1644 |
} |
1645 |
|
1646 |
int cpu_load(QEMUFile *f, void *opaque, int version_id) |
1647 |
{ |
1648 |
CPUState *env = opaque; |
1649 |
int i;
|
1650 |
uint32_t hflags; |
1651 |
uint16_t fpus, fpuc, fptag; |
1652 |
|
1653 |
if (version_id != 1) |
1654 |
return -EINVAL;
|
1655 |
for(i = 0; i < 8; i++) |
1656 |
qemu_get_be32s(f, &env->regs[i]); |
1657 |
qemu_get_be32s(f, &env->eip); |
1658 |
qemu_get_be32s(f, &env->eflags); |
1659 |
qemu_get_be32s(f, &env->eflags); |
1660 |
qemu_get_be32s(f, &hflags); |
1661 |
|
1662 |
qemu_get_be16s(f, &fpuc); |
1663 |
qemu_get_be16s(f, &fpus); |
1664 |
qemu_get_be16s(f, &fptag); |
1665 |
|
1666 |
for(i = 0; i < 8; i++) { |
1667 |
uint64_t mant; |
1668 |
uint16_t exp; |
1669 |
mant = qemu_get_be64(f); |
1670 |
exp = qemu_get_be16(f); |
1671 |
env->fpregs[i] = cpu_set_fp80(mant, exp); |
1672 |
} |
1673 |
|
1674 |
env->fpuc = fpuc; |
1675 |
env->fpstt = (fpus >> 11) & 7; |
1676 |
env->fpus = fpus & ~0x3800;
|
1677 |
for(i = 0; i < 8; i++) { |
1678 |
env->fptags[i] = ((fptag & 3) == 3); |
1679 |
fptag >>= 2;
|
1680 |
} |
1681 |
|
1682 |
for(i = 0; i < 6; i++) |
1683 |
cpu_get_seg(f, &env->segs[i]); |
1684 |
cpu_get_seg(f, &env->ldt); |
1685 |
cpu_get_seg(f, &env->tr); |
1686 |
cpu_get_seg(f, &env->gdt); |
1687 |
cpu_get_seg(f, &env->idt); |
1688 |
|
1689 |
qemu_get_be32s(f, &env->sysenter_cs); |
1690 |
qemu_get_be32s(f, &env->sysenter_esp); |
1691 |
qemu_get_be32s(f, &env->sysenter_eip); |
1692 |
|
1693 |
qemu_get_be32s(f, &env->cr[0]);
|
1694 |
qemu_get_be32s(f, &env->cr[2]);
|
1695 |
qemu_get_be32s(f, &env->cr[3]);
|
1696 |
qemu_get_be32s(f, &env->cr[4]);
|
1697 |
|
1698 |
for(i = 0; i < 8; i++) |
1699 |
qemu_get_be32s(f, &env->dr[i]); |
1700 |
|
1701 |
/* MMU */
|
1702 |
qemu_get_be32s(f, &env->a20_mask); |
1703 |
|
1704 |
/* XXX: compute hflags from scratch, except for CPL and IIF */
|
1705 |
env->hflags = hflags; |
1706 |
tlb_flush(env, 1);
|
1707 |
return 0; |
1708 |
} |
1709 |
|
1710 |
#elif defined(TARGET_PPC)
|
1711 |
void cpu_save(QEMUFile *f, void *opaque) |
1712 |
{ |
1713 |
} |
1714 |
|
1715 |
int cpu_load(QEMUFile *f, void *opaque, int version_id) |
1716 |
{ |
1717 |
return 0; |
1718 |
} |
1719 |
#else
|
1720 |
|
1721 |
#warning No CPU save/restore functions
|
1722 |
|
1723 |
#endif
|
1724 |
|
1725 |
/***********************************************************/
|
1726 |
/* ram save/restore */
|
1727 |
|
1728 |
/* we just avoid storing empty pages */
|
1729 |
static void ram_put_page(QEMUFile *f, const uint8_t *buf, int len) |
1730 |
{ |
1731 |
int i, v;
|
1732 |
|
1733 |
v = buf[0];
|
1734 |
for(i = 1; i < len; i++) { |
1735 |
if (buf[i] != v)
|
1736 |
goto normal_save;
|
1737 |
} |
1738 |
qemu_put_byte(f, 1);
|
1739 |
qemu_put_byte(f, v); |
1740 |
return;
|
1741 |
normal_save:
|
1742 |
qemu_put_byte(f, 0);
|
1743 |
qemu_put_buffer(f, buf, len); |
1744 |
} |
1745 |
|
1746 |
static int ram_get_page(QEMUFile *f, uint8_t *buf, int len) |
1747 |
{ |
1748 |
int v;
|
1749 |
|
1750 |
v = qemu_get_byte(f); |
1751 |
switch(v) {
|
1752 |
case 0: |
1753 |
if (qemu_get_buffer(f, buf, len) != len)
|
1754 |
return -EIO;
|
1755 |
break;
|
1756 |
case 1: |
1757 |
v = qemu_get_byte(f); |
1758 |
memset(buf, v, len); |
1759 |
break;
|
1760 |
default:
|
1761 |
return -EINVAL;
|
1762 |
} |
1763 |
return 0; |
1764 |
} |
1765 |
|
1766 |
static void ram_save(QEMUFile *f, void *opaque) |
1767 |
{ |
1768 |
int i;
|
1769 |
qemu_put_be32(f, phys_ram_size); |
1770 |
for(i = 0; i < phys_ram_size; i+= TARGET_PAGE_SIZE) { |
1771 |
ram_put_page(f, phys_ram_base + i, TARGET_PAGE_SIZE); |
1772 |
} |
1773 |
} |
1774 |
|
1775 |
static int ram_load(QEMUFile *f, void *opaque, int version_id) |
1776 |
{ |
1777 |
int i, ret;
|
1778 |
|
1779 |
if (version_id != 1) |
1780 |
return -EINVAL;
|
1781 |
if (qemu_get_be32(f) != phys_ram_size)
|
1782 |
return -EINVAL;
|
1783 |
for(i = 0; i < phys_ram_size; i+= TARGET_PAGE_SIZE) { |
1784 |
ret = ram_get_page(f, phys_ram_base + i, TARGET_PAGE_SIZE); |
1785 |
if (ret)
|
1786 |
return ret;
|
1787 |
} |
1788 |
return 0; |
1789 |
} |
1790 |
|
1791 |
/***********************************************************/
|
1792 |
/* main execution loop */
|
1793 |
|
1794 |
void gui_update(void *opaque) |
1795 |
{ |
1796 |
display_state.dpy_refresh(&display_state); |
1797 |
qemu_mod_timer(gui_timer, GUI_REFRESH_INTERVAL + qemu_get_clock(rt_clock)); |
1798 |
} |
1799 |
|
1800 |
/* XXX: support several handlers */
|
1801 |
VMStopHandler *vm_stop_cb; |
1802 |
VMStopHandler *vm_stop_opaque; |
1803 |
|
1804 |
int qemu_add_vm_stop_handler(VMStopHandler *cb, void *opaque) |
1805 |
{ |
1806 |
vm_stop_cb = cb; |
1807 |
vm_stop_opaque = opaque; |
1808 |
return 0; |
1809 |
} |
1810 |
|
1811 |
void qemu_del_vm_stop_handler(VMStopHandler *cb, void *opaque) |
1812 |
{ |
1813 |
vm_stop_cb = NULL;
|
1814 |
} |
1815 |
|
1816 |
void vm_start(void) |
1817 |
{ |
1818 |
if (!vm_running) {
|
1819 |
cpu_enable_ticks(); |
1820 |
vm_running = 1;
|
1821 |
} |
1822 |
} |
1823 |
|
1824 |
void vm_stop(int reason) |
1825 |
{ |
1826 |
if (vm_running) {
|
1827 |
cpu_disable_ticks(); |
1828 |
vm_running = 0;
|
1829 |
if (reason != 0) { |
1830 |
if (vm_stop_cb) {
|
1831 |
vm_stop_cb(vm_stop_opaque, reason); |
1832 |
} |
1833 |
} |
1834 |
} |
1835 |
} |
1836 |
|
1837 |
/* reset/shutdown handler */
|
1838 |
|
1839 |
typedef struct QEMUResetEntry { |
1840 |
QEMUResetHandler *func; |
1841 |
void *opaque;
|
1842 |
struct QEMUResetEntry *next;
|
1843 |
} QEMUResetEntry; |
1844 |
|
1845 |
static QEMUResetEntry *first_reset_entry;
|
1846 |
static int reset_requested; |
1847 |
static int shutdown_requested; |
1848 |
|
1849 |
void qemu_register_reset(QEMUResetHandler *func, void *opaque) |
1850 |
{ |
1851 |
QEMUResetEntry **pre, *re; |
1852 |
|
1853 |
pre = &first_reset_entry; |
1854 |
while (*pre != NULL) |
1855 |
pre = &(*pre)->next; |
1856 |
re = qemu_mallocz(sizeof(QEMUResetEntry));
|
1857 |
re->func = func; |
1858 |
re->opaque = opaque; |
1859 |
re->next = NULL;
|
1860 |
*pre = re; |
1861 |
} |
1862 |
|
1863 |
void qemu_system_reset(void) |
1864 |
{ |
1865 |
QEMUResetEntry *re; |
1866 |
|
1867 |
/* reset all devices */
|
1868 |
for(re = first_reset_entry; re != NULL; re = re->next) { |
1869 |
re->func(re->opaque); |
1870 |
} |
1871 |
} |
1872 |
|
1873 |
void qemu_system_reset_request(void) |
1874 |
{ |
1875 |
reset_requested = 1;
|
1876 |
cpu_interrupt(cpu_single_env, CPU_INTERRUPT_EXIT); |
1877 |
} |
1878 |
|
1879 |
void qemu_system_shutdown_request(void) |
1880 |
{ |
1881 |
shutdown_requested = 1;
|
1882 |
cpu_interrupt(cpu_single_env, CPU_INTERRUPT_EXIT); |
1883 |
} |
1884 |
|
1885 |
static void main_cpu_reset(void *opaque) |
1886 |
{ |
1887 |
#ifdef TARGET_I386
|
1888 |
CPUState *env = opaque; |
1889 |
cpu_reset(env); |
1890 |
#endif
|
1891 |
} |
1892 |
|
1893 |
int main_loop(void) |
1894 |
{ |
1895 |
#ifndef _WIN32
|
1896 |
struct pollfd ufds[MAX_IO_HANDLERS + 1], *pf; |
1897 |
IOHandlerRecord *ioh, *ioh_next; |
1898 |
uint8_t buf[4096];
|
1899 |
int n, max_size;
|
1900 |
#endif
|
1901 |
int ret, timeout;
|
1902 |
CPUState *env = global_env; |
1903 |
|
1904 |
for(;;) {
|
1905 |
if (vm_running) {
|
1906 |
ret = cpu_exec(env); |
1907 |
if (shutdown_requested) {
|
1908 |
ret = EXCP_INTERRUPT; |
1909 |
break;
|
1910 |
} |
1911 |
if (reset_requested) {
|
1912 |
reset_requested = 0;
|
1913 |
qemu_system_reset(); |
1914 |
ret = EXCP_INTERRUPT; |
1915 |
} |
1916 |
if (ret == EXCP_DEBUG) {
|
1917 |
vm_stop(EXCP_DEBUG); |
1918 |
} |
1919 |
/* if hlt instruction, we wait until the next IRQ */
|
1920 |
/* XXX: use timeout computed from timers */
|
1921 |
if (ret == EXCP_HLT)
|
1922 |
timeout = 10;
|
1923 |
else
|
1924 |
timeout = 0;
|
1925 |
} else {
|
1926 |
timeout = 10;
|
1927 |
} |
1928 |
|
1929 |
#ifdef _WIN32
|
1930 |
if (timeout > 0) |
1931 |
Sleep(timeout); |
1932 |
#else
|
1933 |
|
1934 |
/* poll any events */
|
1935 |
/* XXX: separate device handlers from system ones */
|
1936 |
pf = ufds; |
1937 |
for(ioh = first_io_handler; ioh != NULL; ioh = ioh->next) { |
1938 |
if (!ioh->fd_can_read) {
|
1939 |
max_size = 0;
|
1940 |
pf->fd = ioh->fd; |
1941 |
pf->events = POLLIN; |
1942 |
ioh->ufd = pf; |
1943 |
pf++; |
1944 |
} else {
|
1945 |
max_size = ioh->fd_can_read(ioh->opaque); |
1946 |
if (max_size > 0) { |
1947 |
if (max_size > sizeof(buf)) |
1948 |
max_size = sizeof(buf);
|
1949 |
pf->fd = ioh->fd; |
1950 |
pf->events = POLLIN; |
1951 |
ioh->ufd = pf; |
1952 |
pf++; |
1953 |
} else {
|
1954 |
ioh->ufd = NULL;
|
1955 |
} |
1956 |
} |
1957 |
ioh->max_size = max_size; |
1958 |
} |
1959 |
|
1960 |
ret = poll(ufds, pf - ufds, timeout); |
1961 |
if (ret > 0) { |
1962 |
/* XXX: better handling of removal */
|
1963 |
for(ioh = first_io_handler; ioh != NULL; ioh = ioh_next) { |
1964 |
ioh_next = ioh->next; |
1965 |
pf = ioh->ufd; |
1966 |
if (pf) {
|
1967 |
if (pf->revents & POLLIN) {
|
1968 |
if (ioh->max_size == 0) { |
1969 |
/* just a read event */
|
1970 |
ioh->fd_read(ioh->opaque, NULL, 0); |
1971 |
} else {
|
1972 |
n = read(ioh->fd, buf, ioh->max_size); |
1973 |
if (n >= 0) { |
1974 |
ioh->fd_read(ioh->opaque, buf, n); |
1975 |
} else if (errno != EAGAIN) { |
1976 |
ioh->fd_read(ioh->opaque, NULL, -errno);
|
1977 |
} |
1978 |
} |
1979 |
} |
1980 |
} |
1981 |
} |
1982 |
} |
1983 |
|
1984 |
#if defined(CONFIG_SLIRP)
|
1985 |
/* XXX: merge with poll() */
|
1986 |
if (slirp_inited) {
|
1987 |
fd_set rfds, wfds, xfds; |
1988 |
int nfds;
|
1989 |
struct timeval tv;
|
1990 |
|
1991 |
nfds = -1;
|
1992 |
FD_ZERO(&rfds); |
1993 |
FD_ZERO(&wfds); |
1994 |
FD_ZERO(&xfds); |
1995 |
slirp_select_fill(&nfds, &rfds, &wfds, &xfds); |
1996 |
tv.tv_sec = 0;
|
1997 |
tv.tv_usec = 0;
|
1998 |
ret = select(nfds + 1, &rfds, &wfds, &xfds, &tv);
|
1999 |
if (ret >= 0) { |
2000 |
slirp_select_poll(&rfds, &wfds, &xfds); |
2001 |
} |
2002 |
} |
2003 |
#endif
|
2004 |
|
2005 |
#endif
|
2006 |
|
2007 |
if (vm_running) {
|
2008 |
qemu_run_timers(&active_timers[QEMU_TIMER_VIRTUAL], |
2009 |
qemu_get_clock(vm_clock)); |
2010 |
|
2011 |
if (audio_enabled) {
|
2012 |
/* XXX: add explicit timer */
|
2013 |
SB16_run(); |
2014 |
} |
2015 |
|
2016 |
/* run dma transfers, if any */
|
2017 |
DMA_run(); |
2018 |
} |
2019 |
|
2020 |
/* real time timers */
|
2021 |
qemu_run_timers(&active_timers[QEMU_TIMER_REALTIME], |
2022 |
qemu_get_clock(rt_clock)); |
2023 |
} |
2024 |
cpu_disable_ticks(); |
2025 |
return ret;
|
2026 |
} |
2027 |
|
2028 |
void help(void) |
2029 |
{ |
2030 |
printf("QEMU PC emulator version " QEMU_VERSION ", Copyright (c) 2003-2004 Fabrice Bellard\n" |
2031 |
"usage: %s [options] [disk_image]\n"
|
2032 |
"\n"
|
2033 |
"'disk_image' is a raw hard image image for IDE hard disk 0\n"
|
2034 |
"\n"
|
2035 |
"Standard options:\n"
|
2036 |
"-fda/-fdb file use 'file' as floppy disk 0/1 image\n"
|
2037 |
"-hda/-hdb file use 'file' as IDE hard disk 0/1 image\n"
|
2038 |
"-hdc/-hdd file use 'file' as IDE hard disk 2/3 image\n"
|
2039 |
"-cdrom file use 'file' as IDE cdrom image (cdrom is ide1 master)\n"
|
2040 |
"-boot [a|b|c|d] boot on floppy (a, b), hard disk (c) or CD-ROM (d)\n"
|
2041 |
"-snapshot write to temporary files instead of disk image files\n"
|
2042 |
"-m megs set virtual RAM size to megs MB [default=%d]\n"
|
2043 |
"-nographic disable graphical output and redirect serial I/Os to console\n"
|
2044 |
"-enable-audio enable audio support\n"
|
2045 |
"-localtime set the real time clock to local time [default=utc]\n"
|
2046 |
#ifdef TARGET_PPC
|
2047 |
"-prep Simulate a PREP system (default is PowerMAC)\n"
|
2048 |
"-g WxH[xDEPTH] Set the initial VGA graphic mode\n"
|
2049 |
#endif
|
2050 |
"\n"
|
2051 |
"Network options:\n"
|
2052 |
"-nics n simulate 'n' network cards [default=1]\n"
|
2053 |
"-macaddr addr set the mac address of the first interface\n"
|
2054 |
"-n script set tap/tun network init script [default=%s]\n"
|
2055 |
"-tun-fd fd use this fd as already opened tap/tun interface\n"
|
2056 |
#ifdef CONFIG_SLIRP
|
2057 |
"-user-net use user mode network stack [default if no tap/tun script]\n"
|
2058 |
#endif
|
2059 |
"-dummy-net use dummy network stack\n"
|
2060 |
"\n"
|
2061 |
"Linux boot specific:\n"
|
2062 |
"-kernel bzImage use 'bzImage' as kernel image\n"
|
2063 |
"-append cmdline use 'cmdline' as kernel command line\n"
|
2064 |
"-initrd file use 'file' as initial ram disk\n"
|
2065 |
"\n"
|
2066 |
"Debug/Expert options:\n"
|
2067 |
"-S freeze CPU at startup (use 'c' to start execution)\n"
|
2068 |
"-s wait gdb connection to port %d\n"
|
2069 |
"-p port change gdb connection port\n"
|
2070 |
"-d item1,... output log to %s (use -d ? for a list of log items)\n"
|
2071 |
"-hdachs c,h,s force hard disk 0 geometry (usually qemu can guess it)\n"
|
2072 |
"-L path set the directory for the BIOS and VGA BIOS\n"
|
2073 |
#ifdef USE_CODE_COPY
|
2074 |
"-no-code-copy disable code copy acceleration\n"
|
2075 |
#endif
|
2076 |
#ifdef TARGET_I386
|
2077 |
"-isa simulate an ISA-only system (default is PCI system)\n"
|
2078 |
#endif
|
2079 |
"\n"
|
2080 |
"During emulation, use C-a h to get terminal commands:\n",
|
2081 |
#ifdef CONFIG_SOFTMMU
|
2082 |
"qemu",
|
2083 |
#else
|
2084 |
"qemu-fast",
|
2085 |
#endif
|
2086 |
DEFAULT_RAM_SIZE, |
2087 |
DEFAULT_NETWORK_SCRIPT, |
2088 |
DEFAULT_GDBSTUB_PORT, |
2089 |
"/tmp/qemu.log");
|
2090 |
term_print_help(); |
2091 |
#ifndef CONFIG_SOFTMMU
|
2092 |
printf("\n"
|
2093 |
"NOTE: this version of QEMU is faster but it needs slightly patched OSes to\n"
|
2094 |
"work. Please use the 'qemu' executable to have a more accurate (but slower)\n"
|
2095 |
"PC emulation.\n");
|
2096 |
#endif
|
2097 |
exit(1);
|
2098 |
} |
2099 |
|
2100 |
#define HAS_ARG 0x0001 |
2101 |
|
2102 |
enum {
|
2103 |
QEMU_OPTION_h, |
2104 |
|
2105 |
QEMU_OPTION_fda, |
2106 |
QEMU_OPTION_fdb, |
2107 |
QEMU_OPTION_hda, |
2108 |
QEMU_OPTION_hdb, |
2109 |
QEMU_OPTION_hdc, |
2110 |
QEMU_OPTION_hdd, |
2111 |
QEMU_OPTION_cdrom, |
2112 |
QEMU_OPTION_boot, |
2113 |
QEMU_OPTION_snapshot, |
2114 |
QEMU_OPTION_m, |
2115 |
QEMU_OPTION_nographic, |
2116 |
QEMU_OPTION_enable_audio, |
2117 |
|
2118 |
QEMU_OPTION_nics, |
2119 |
QEMU_OPTION_macaddr, |
2120 |
QEMU_OPTION_n, |
2121 |
QEMU_OPTION_tun_fd, |
2122 |
QEMU_OPTION_user_net, |
2123 |
QEMU_OPTION_dummy_net, |
2124 |
|
2125 |
QEMU_OPTION_kernel, |
2126 |
QEMU_OPTION_append, |
2127 |
QEMU_OPTION_initrd, |
2128 |
|
2129 |
QEMU_OPTION_S, |
2130 |
QEMU_OPTION_s, |
2131 |
QEMU_OPTION_p, |
2132 |
QEMU_OPTION_d, |
2133 |
QEMU_OPTION_hdachs, |
2134 |
QEMU_OPTION_L, |
2135 |
QEMU_OPTION_no_code_copy, |
2136 |
QEMU_OPTION_pci, |
2137 |
QEMU_OPTION_isa, |
2138 |
QEMU_OPTION_prep, |
2139 |
QEMU_OPTION_localtime, |
2140 |
QEMU_OPTION_cirrusvga, |
2141 |
QEMU_OPTION_g, |
2142 |
}; |
2143 |
|
2144 |
typedef struct QEMUOption { |
2145 |
const char *name; |
2146 |
int flags;
|
2147 |
int index;
|
2148 |
} QEMUOption; |
2149 |
|
2150 |
const QEMUOption qemu_options[] = {
|
2151 |
{ "h", 0, QEMU_OPTION_h }, |
2152 |
|
2153 |
{ "fda", HAS_ARG, QEMU_OPTION_fda },
|
2154 |
{ "fdb", HAS_ARG, QEMU_OPTION_fdb },
|
2155 |
{ "hda", HAS_ARG, QEMU_OPTION_hda },
|
2156 |
{ "hdb", HAS_ARG, QEMU_OPTION_hdb },
|
2157 |
{ "hdc", HAS_ARG, QEMU_OPTION_hdc },
|
2158 |
{ "hdd", HAS_ARG, QEMU_OPTION_hdd },
|
2159 |
{ "cdrom", HAS_ARG, QEMU_OPTION_cdrom },
|
2160 |
{ "boot", HAS_ARG, QEMU_OPTION_boot },
|
2161 |
{ "snapshot", 0, QEMU_OPTION_snapshot }, |
2162 |
{ "m", HAS_ARG, QEMU_OPTION_m },
|
2163 |
{ "nographic", 0, QEMU_OPTION_nographic }, |
2164 |
{ "enable-audio", 0, QEMU_OPTION_enable_audio }, |
2165 |
|
2166 |
{ "nics", HAS_ARG, QEMU_OPTION_nics},
|
2167 |
{ "macaddr", HAS_ARG, QEMU_OPTION_macaddr},
|
2168 |
{ "n", HAS_ARG, QEMU_OPTION_n },
|
2169 |
{ "tun-fd", HAS_ARG, QEMU_OPTION_tun_fd },
|
2170 |
#ifdef CONFIG_SLIRP
|
2171 |
{ "user-net", 0, QEMU_OPTION_user_net }, |
2172 |
#endif
|
2173 |
{ "dummy-net", 0, QEMU_OPTION_dummy_net }, |
2174 |
|
2175 |
{ "kernel", HAS_ARG, QEMU_OPTION_kernel },
|
2176 |
{ "append", HAS_ARG, QEMU_OPTION_append },
|
2177 |
{ "initrd", HAS_ARG, QEMU_OPTION_initrd },
|
2178 |
|
2179 |
{ "S", 0, QEMU_OPTION_S }, |
2180 |
{ "s", 0, QEMU_OPTION_s }, |
2181 |
{ "p", HAS_ARG, QEMU_OPTION_p },
|
2182 |
{ "d", HAS_ARG, QEMU_OPTION_d },
|
2183 |
{ "hdachs", HAS_ARG, QEMU_OPTION_hdachs },
|
2184 |
{ "L", HAS_ARG, QEMU_OPTION_L },
|
2185 |
{ "no-code-copy", 0, QEMU_OPTION_no_code_copy }, |
2186 |
#ifdef TARGET_PPC
|
2187 |
{ "prep", 0, QEMU_OPTION_prep }, |
2188 |
{ "g", 1, QEMU_OPTION_g }, |
2189 |
#endif
|
2190 |
{ "localtime", 0, QEMU_OPTION_localtime }, |
2191 |
{ "isa", 0, QEMU_OPTION_isa }, |
2192 |
|
2193 |
/* temporary options */
|
2194 |
{ "pci", 0, QEMU_OPTION_pci }, |
2195 |
{ "cirrusvga", 0, QEMU_OPTION_cirrusvga }, |
2196 |
{ NULL },
|
2197 |
}; |
2198 |
|
2199 |
#if defined (TARGET_I386) && defined(USE_CODE_COPY)
|
2200 |
|
2201 |
/* this stack is only used during signal handling */
|
2202 |
#define SIGNAL_STACK_SIZE 32768 |
2203 |
|
2204 |
static uint8_t *signal_stack;
|
2205 |
|
2206 |
#endif
|
2207 |
|
2208 |
#define NET_IF_TUN 0 |
2209 |
#define NET_IF_USER 1 |
2210 |
#define NET_IF_DUMMY 2 |
2211 |
|
2212 |
int main(int argc, char **argv) |
2213 |
{ |
2214 |
#ifdef CONFIG_GDBSTUB
|
2215 |
int use_gdbstub, gdbstub_port;
|
2216 |
#endif
|
2217 |
int i, has_cdrom;
|
2218 |
int snapshot, linux_boot;
|
2219 |
CPUState *env; |
2220 |
const char *initrd_filename; |
2221 |
const char *hd_filename[MAX_DISKS], *fd_filename[MAX_FD]; |
2222 |
const char *kernel_filename, *kernel_cmdline; |
2223 |
DisplayState *ds = &display_state; |
2224 |
int cyls, heads, secs;
|
2225 |
int start_emulation = 1; |
2226 |
uint8_t macaddr[6];
|
2227 |
int net_if_type, nb_tun_fds, tun_fds[MAX_NICS];
|
2228 |
int optind;
|
2229 |
const char *r, *optarg; |
2230 |
|
2231 |
#if !defined(CONFIG_SOFTMMU)
|
2232 |
/* we never want that malloc() uses mmap() */
|
2233 |
mallopt(M_MMAP_THRESHOLD, 4096 * 1024); |
2234 |
#endif
|
2235 |
initrd_filename = NULL;
|
2236 |
for(i = 0; i < MAX_FD; i++) |
2237 |
fd_filename[i] = NULL;
|
2238 |
for(i = 0; i < MAX_DISKS; i++) |
2239 |
hd_filename[i] = NULL;
|
2240 |
ram_size = DEFAULT_RAM_SIZE * 1024 * 1024; |
2241 |
vga_ram_size = VGA_RAM_SIZE; |
2242 |
bios_size = BIOS_SIZE; |
2243 |
pstrcpy(network_script, sizeof(network_script), DEFAULT_NETWORK_SCRIPT);
|
2244 |
#ifdef CONFIG_GDBSTUB
|
2245 |
use_gdbstub = 0;
|
2246 |
gdbstub_port = DEFAULT_GDBSTUB_PORT; |
2247 |
#endif
|
2248 |
snapshot = 0;
|
2249 |
nographic = 0;
|
2250 |
kernel_filename = NULL;
|
2251 |
kernel_cmdline = "";
|
2252 |
has_cdrom = 1;
|
2253 |
cyls = heads = secs = 0;
|
2254 |
|
2255 |
nb_tun_fds = 0;
|
2256 |
net_if_type = -1;
|
2257 |
nb_nics = 1;
|
2258 |
/* default mac address of the first network interface */
|
2259 |
macaddr[0] = 0x52; |
2260 |
macaddr[1] = 0x54; |
2261 |
macaddr[2] = 0x00; |
2262 |
macaddr[3] = 0x12; |
2263 |
macaddr[4] = 0x34; |
2264 |
macaddr[5] = 0x56; |
2265 |
|
2266 |
optind = 1;
|
2267 |
for(;;) {
|
2268 |
if (optind >= argc)
|
2269 |
break;
|
2270 |
r = argv[optind]; |
2271 |
if (r[0] != '-') { |
2272 |
hd_filename[0] = argv[optind++];
|
2273 |
} else {
|
2274 |
const QEMUOption *popt;
|
2275 |
|
2276 |
optind++; |
2277 |
popt = qemu_options; |
2278 |
for(;;) {
|
2279 |
if (!popt->name) {
|
2280 |
fprintf(stderr, "%s: invalid option -- '%s'\n",
|
2281 |
argv[0], r);
|
2282 |
exit(1);
|
2283 |
} |
2284 |
if (!strcmp(popt->name, r + 1)) |
2285 |
break;
|
2286 |
popt++; |
2287 |
} |
2288 |
if (popt->flags & HAS_ARG) {
|
2289 |
if (optind >= argc) {
|
2290 |
fprintf(stderr, "%s: option '%s' requires an argument\n",
|
2291 |
argv[0], r);
|
2292 |
exit(1);
|
2293 |
} |
2294 |
optarg = argv[optind++]; |
2295 |
} else {
|
2296 |
optarg = NULL;
|
2297 |
} |
2298 |
|
2299 |
switch(popt->index) {
|
2300 |
case QEMU_OPTION_initrd:
|
2301 |
initrd_filename = optarg; |
2302 |
break;
|
2303 |
case QEMU_OPTION_hda:
|
2304 |
hd_filename[0] = optarg;
|
2305 |
break;
|
2306 |
case QEMU_OPTION_hdb:
|
2307 |
hd_filename[1] = optarg;
|
2308 |
break;
|
2309 |
case QEMU_OPTION_snapshot:
|
2310 |
snapshot = 1;
|
2311 |
break;
|
2312 |
case QEMU_OPTION_hdachs:
|
2313 |
{ |
2314 |
const char *p; |
2315 |
p = optarg; |
2316 |
cyls = strtol(p, (char **)&p, 0); |
2317 |
if (*p != ',') |
2318 |
goto chs_fail;
|
2319 |
p++; |
2320 |
heads = strtol(p, (char **)&p, 0); |
2321 |
if (*p != ',') |
2322 |
goto chs_fail;
|
2323 |
p++; |
2324 |
secs = strtol(p, (char **)&p, 0); |
2325 |
if (*p != '\0') { |
2326 |
chs_fail:
|
2327 |
cyls = 0;
|
2328 |
} |
2329 |
} |
2330 |
break;
|
2331 |
case QEMU_OPTION_nographic:
|
2332 |
nographic = 1;
|
2333 |
break;
|
2334 |
case QEMU_OPTION_kernel:
|
2335 |
kernel_filename = optarg; |
2336 |
break;
|
2337 |
case QEMU_OPTION_append:
|
2338 |
kernel_cmdline = optarg; |
2339 |
break;
|
2340 |
case QEMU_OPTION_tun_fd:
|
2341 |
{ |
2342 |
const char *p; |
2343 |
int fd;
|
2344 |
net_if_type = NET_IF_TUN; |
2345 |
if (nb_tun_fds < MAX_NICS) {
|
2346 |
fd = strtol(optarg, (char **)&p, 0); |
2347 |
if (*p != '\0') { |
2348 |
fprintf(stderr, "qemu: invalid fd for network interface %d\n", nb_tun_fds);
|
2349 |
exit(1);
|
2350 |
} |
2351 |
tun_fds[nb_tun_fds++] = fd; |
2352 |
} |
2353 |
} |
2354 |
break;
|
2355 |
case QEMU_OPTION_hdc:
|
2356 |
hd_filename[2] = optarg;
|
2357 |
has_cdrom = 0;
|
2358 |
break;
|
2359 |
case QEMU_OPTION_hdd:
|
2360 |
hd_filename[3] = optarg;
|
2361 |
break;
|
2362 |
case QEMU_OPTION_cdrom:
|
2363 |
hd_filename[2] = optarg;
|
2364 |
has_cdrom = 1;
|
2365 |
break;
|
2366 |
case QEMU_OPTION_boot:
|
2367 |
boot_device = optarg[0];
|
2368 |
if (boot_device != 'a' && boot_device != 'b' && |
2369 |
boot_device != 'c' && boot_device != 'd') { |
2370 |
fprintf(stderr, "qemu: invalid boot device '%c'\n", boot_device);
|
2371 |
exit(1);
|
2372 |
} |
2373 |
break;
|
2374 |
case QEMU_OPTION_fda:
|
2375 |
fd_filename[0] = optarg;
|
2376 |
break;
|
2377 |
case QEMU_OPTION_fdb:
|
2378 |
fd_filename[1] = optarg;
|
2379 |
break;
|
2380 |
case QEMU_OPTION_no_code_copy:
|
2381 |
code_copy_enabled = 0;
|
2382 |
break;
|
2383 |
case QEMU_OPTION_nics:
|
2384 |
nb_nics = atoi(optarg); |
2385 |
if (nb_nics < 0 || nb_nics > MAX_NICS) { |
2386 |
fprintf(stderr, "qemu: invalid number of network interfaces\n");
|
2387 |
exit(1);
|
2388 |
} |
2389 |
break;
|
2390 |
case QEMU_OPTION_macaddr:
|
2391 |
{ |
2392 |
const char *p; |
2393 |
int i;
|
2394 |
p = optarg; |
2395 |
for(i = 0; i < 6; i++) { |
2396 |
macaddr[i] = strtol(p, (char **)&p, 16); |
2397 |
if (i == 5) { |
2398 |
if (*p != '\0') |
2399 |
goto macaddr_error;
|
2400 |
} else {
|
2401 |
if (*p != ':') { |
2402 |
macaddr_error:
|
2403 |
fprintf(stderr, "qemu: invalid syntax for ethernet address\n");
|
2404 |
exit(1);
|
2405 |
} |
2406 |
p++; |
2407 |
} |
2408 |
} |
2409 |
} |
2410 |
break;
|
2411 |
case QEMU_OPTION_user_net:
|
2412 |
net_if_type = NET_IF_USER; |
2413 |
break;
|
2414 |
case QEMU_OPTION_dummy_net:
|
2415 |
net_if_type = NET_IF_DUMMY; |
2416 |
break;
|
2417 |
case QEMU_OPTION_enable_audio:
|
2418 |
audio_enabled = 1;
|
2419 |
break;
|
2420 |
case QEMU_OPTION_h:
|
2421 |
help(); |
2422 |
break;
|
2423 |
case QEMU_OPTION_m:
|
2424 |
ram_size = atoi(optarg) * 1024 * 1024; |
2425 |
if (ram_size <= 0) |
2426 |
help(); |
2427 |
if (ram_size > PHYS_RAM_MAX_SIZE) {
|
2428 |
fprintf(stderr, "qemu: at most %d MB RAM can be simulated\n",
|
2429 |
PHYS_RAM_MAX_SIZE / (1024 * 1024)); |
2430 |
exit(1);
|
2431 |
} |
2432 |
break;
|
2433 |
case QEMU_OPTION_d:
|
2434 |
{ |
2435 |
int mask;
|
2436 |
CPULogItem *item; |
2437 |
|
2438 |
mask = cpu_str_to_log_mask(optarg); |
2439 |
if (!mask) {
|
2440 |
printf("Log items (comma separated):\n");
|
2441 |
for(item = cpu_log_items; item->mask != 0; item++) { |
2442 |
printf("%-10s %s\n", item->name, item->help);
|
2443 |
} |
2444 |
exit(1);
|
2445 |
} |
2446 |
cpu_set_log(mask); |
2447 |
} |
2448 |
break;
|
2449 |
case QEMU_OPTION_n:
|
2450 |
pstrcpy(network_script, sizeof(network_script), optarg);
|
2451 |
break;
|
2452 |
#ifdef CONFIG_GDBSTUB
|
2453 |
case QEMU_OPTION_s:
|
2454 |
use_gdbstub = 1;
|
2455 |
break;
|
2456 |
case QEMU_OPTION_p:
|
2457 |
gdbstub_port = atoi(optarg); |
2458 |
break;
|
2459 |
#endif
|
2460 |
case QEMU_OPTION_L:
|
2461 |
bios_dir = optarg; |
2462 |
break;
|
2463 |
case QEMU_OPTION_S:
|
2464 |
start_emulation = 0;
|
2465 |
break;
|
2466 |
case QEMU_OPTION_pci:
|
2467 |
pci_enabled = 1;
|
2468 |
break;
|
2469 |
case QEMU_OPTION_isa:
|
2470 |
pci_enabled = 0;
|
2471 |
break;
|
2472 |
case QEMU_OPTION_prep:
|
2473 |
prep_enabled = 1;
|
2474 |
break;
|
2475 |
case QEMU_OPTION_localtime:
|
2476 |
rtc_utc = 0;
|
2477 |
break;
|
2478 |
case QEMU_OPTION_cirrusvga:
|
2479 |
cirrus_vga_enabled = 1;
|
2480 |
break;
|
2481 |
case QEMU_OPTION_g:
|
2482 |
{ |
2483 |
const char *p; |
2484 |
int w, h, depth;
|
2485 |
p = optarg; |
2486 |
w = strtol(p, (char **)&p, 10); |
2487 |
if (w <= 0) { |
2488 |
graphic_error:
|
2489 |
fprintf(stderr, "qemu: invalid resolution or depth\n");
|
2490 |
exit(1);
|
2491 |
} |
2492 |
if (*p != 'x') |
2493 |
goto graphic_error;
|
2494 |
p++; |
2495 |
h = strtol(p, (char **)&p, 10); |
2496 |
if (h <= 0) |
2497 |
goto graphic_error;
|
2498 |
if (*p == 'x') { |
2499 |
p++; |
2500 |
depth = strtol(p, (char **)&p, 10); |
2501 |
if (depth != 8 && depth != 15 && depth != 16 && |
2502 |
depth != 24 && depth != 32) |
2503 |
goto graphic_error;
|
2504 |
} else if (*p == '\0') { |
2505 |
depth = graphic_depth; |
2506 |
} else {
|
2507 |
goto graphic_error;
|
2508 |
} |
2509 |
|
2510 |
graphic_width = w; |
2511 |
graphic_height = h; |
2512 |
graphic_depth = depth; |
2513 |
} |
2514 |
break;
|
2515 |
} |
2516 |
} |
2517 |
} |
2518 |
|
2519 |
linux_boot = (kernel_filename != NULL);
|
2520 |
|
2521 |
if (!linux_boot && hd_filename[0] == '\0' && hd_filename[2] == '\0' && |
2522 |
fd_filename[0] == '\0') |
2523 |
help(); |
2524 |
|
2525 |
/* boot to cd by default if no hard disk */
|
2526 |
if (hd_filename[0] == '\0' && boot_device == 'c') { |
2527 |
if (fd_filename[0] != '\0') |
2528 |
boot_device = 'a';
|
2529 |
else
|
2530 |
boot_device = 'd';
|
2531 |
} |
2532 |
|
2533 |
#if !defined(CONFIG_SOFTMMU)
|
2534 |
/* must avoid mmap() usage of glibc by setting a buffer "by hand" */
|
2535 |
{ |
2536 |
static uint8_t stdout_buf[4096]; |
2537 |
setvbuf(stdout, stdout_buf, _IOLBF, sizeof(stdout_buf));
|
2538 |
} |
2539 |
#else
|
2540 |
setvbuf(stdout, NULL, _IOLBF, 0); |
2541 |
#endif
|
2542 |
|
2543 |
/* init host network redirectors */
|
2544 |
if (net_if_type == -1) { |
2545 |
net_if_type = NET_IF_TUN; |
2546 |
#if defined(CONFIG_SLIRP)
|
2547 |
if (access(network_script, R_OK) < 0) { |
2548 |
net_if_type = NET_IF_USER; |
2549 |
} |
2550 |
#endif
|
2551 |
} |
2552 |
|
2553 |
for(i = 0; i < nb_nics; i++) { |
2554 |
NetDriverState *nd = &nd_table[i]; |
2555 |
nd->index = i; |
2556 |
/* init virtual mac address */
|
2557 |
nd->macaddr[0] = macaddr[0]; |
2558 |
nd->macaddr[1] = macaddr[1]; |
2559 |
nd->macaddr[2] = macaddr[2]; |
2560 |
nd->macaddr[3] = macaddr[3]; |
2561 |
nd->macaddr[4] = macaddr[4]; |
2562 |
nd->macaddr[5] = macaddr[5] + i; |
2563 |
switch(net_if_type) {
|
2564 |
#if defined(CONFIG_SLIRP)
|
2565 |
case NET_IF_USER:
|
2566 |
net_slirp_init(nd); |
2567 |
break;
|
2568 |
#endif
|
2569 |
#if !defined(_WIN32)
|
2570 |
case NET_IF_TUN:
|
2571 |
if (i < nb_tun_fds) {
|
2572 |
net_fd_init(nd, tun_fds[i]); |
2573 |
} else {
|
2574 |
if (net_tun_init(nd) < 0) |
2575 |
net_dummy_init(nd); |
2576 |
} |
2577 |
break;
|
2578 |
#endif
|
2579 |
case NET_IF_DUMMY:
|
2580 |
default:
|
2581 |
net_dummy_init(nd); |
2582 |
break;
|
2583 |
} |
2584 |
} |
2585 |
|
2586 |
/* init the memory */
|
2587 |
phys_ram_size = ram_size + vga_ram_size + bios_size; |
2588 |
|
2589 |
#ifdef CONFIG_SOFTMMU
|
2590 |
#ifdef _BSD
|
2591 |
/* mallocs are always aligned on BSD. */
|
2592 |
phys_ram_base = malloc(phys_ram_size); |
2593 |
#else
|
2594 |
phys_ram_base = memalign(TARGET_PAGE_SIZE, phys_ram_size); |
2595 |
#endif
|
2596 |
if (!phys_ram_base) {
|
2597 |
fprintf(stderr, "Could not allocate physical memory\n");
|
2598 |
exit(1);
|
2599 |
} |
2600 |
#else
|
2601 |
/* as we must map the same page at several addresses, we must use
|
2602 |
a fd */
|
2603 |
{ |
2604 |
const char *tmpdir; |
2605 |
|
2606 |
tmpdir = getenv("QEMU_TMPDIR");
|
2607 |
if (!tmpdir)
|
2608 |
tmpdir = "/tmp";
|
2609 |
snprintf(phys_ram_file, sizeof(phys_ram_file), "%s/vlXXXXXX", tmpdir); |
2610 |
if (mkstemp(phys_ram_file) < 0) { |
2611 |
fprintf(stderr, "Could not create temporary memory file '%s'\n",
|
2612 |
phys_ram_file); |
2613 |
exit(1);
|
2614 |
} |
2615 |
phys_ram_fd = open(phys_ram_file, O_CREAT | O_TRUNC | O_RDWR, 0600);
|
2616 |
if (phys_ram_fd < 0) { |
2617 |
fprintf(stderr, "Could not open temporary memory file '%s'\n",
|
2618 |
phys_ram_file); |
2619 |
exit(1);
|
2620 |
} |
2621 |
ftruncate(phys_ram_fd, phys_ram_size); |
2622 |
unlink(phys_ram_file); |
2623 |
phys_ram_base = mmap(get_mmap_addr(phys_ram_size), |
2624 |
phys_ram_size, |
2625 |
PROT_WRITE | PROT_READ, MAP_SHARED | MAP_FIXED, |
2626 |
phys_ram_fd, 0);
|
2627 |
if (phys_ram_base == MAP_FAILED) {
|
2628 |
fprintf(stderr, "Could not map physical memory\n");
|
2629 |
exit(1);
|
2630 |
} |
2631 |
} |
2632 |
#endif
|
2633 |
|
2634 |
/* we always create the cdrom drive, even if no disk is there */
|
2635 |
if (has_cdrom) {
|
2636 |
bs_table[2] = bdrv_new("cdrom"); |
2637 |
bdrv_set_type_hint(bs_table[2], BDRV_TYPE_CDROM);
|
2638 |
} |
2639 |
|
2640 |
/* open the virtual block devices */
|
2641 |
for(i = 0; i < MAX_DISKS; i++) { |
2642 |
if (hd_filename[i]) {
|
2643 |
if (!bs_table[i]) {
|
2644 |
char buf[64]; |
2645 |
snprintf(buf, sizeof(buf), "hd%c", i + 'a'); |
2646 |
bs_table[i] = bdrv_new(buf); |
2647 |
} |
2648 |
if (bdrv_open(bs_table[i], hd_filename[i], snapshot) < 0) { |
2649 |
fprintf(stderr, "qemu: could not open hard disk image '%s\n",
|
2650 |
hd_filename[i]); |
2651 |
exit(1);
|
2652 |
} |
2653 |
if (i == 0 && cyls != 0) |
2654 |
bdrv_set_geometry_hint(bs_table[i], cyls, heads, secs); |
2655 |
} |
2656 |
} |
2657 |
|
2658 |
/* we always create at least one floppy disk */
|
2659 |
fd_table[0] = bdrv_new("fda"); |
2660 |
bdrv_set_type_hint(fd_table[0], BDRV_TYPE_FLOPPY);
|
2661 |
|
2662 |
for(i = 0; i < MAX_FD; i++) { |
2663 |
if (fd_filename[i]) {
|
2664 |
if (!fd_table[i]) {
|
2665 |
char buf[64]; |
2666 |
snprintf(buf, sizeof(buf), "fd%c", i + 'a'); |
2667 |
fd_table[i] = bdrv_new(buf); |
2668 |
bdrv_set_type_hint(fd_table[i], BDRV_TYPE_FLOPPY); |
2669 |
} |
2670 |
if (fd_filename[i] != '\0') { |
2671 |
if (bdrv_open(fd_table[i], fd_filename[i], snapshot) < 0) { |
2672 |
fprintf(stderr, "qemu: could not open floppy disk image '%s'\n",
|
2673 |
fd_filename[i]); |
2674 |
exit(1);
|
2675 |
} |
2676 |
} |
2677 |
} |
2678 |
} |
2679 |
|
2680 |
/* init CPU state */
|
2681 |
env = cpu_init(); |
2682 |
global_env = env; |
2683 |
cpu_single_env = env; |
2684 |
|
2685 |
register_savevm("timer", 0, 1, timer_save, timer_load, env); |
2686 |
register_savevm("cpu", 0, 1, cpu_save, cpu_load, env); |
2687 |
register_savevm("ram", 0, 1, ram_save, ram_load, NULL); |
2688 |
qemu_register_reset(main_cpu_reset, global_env); |
2689 |
|
2690 |
init_ioports(); |
2691 |
cpu_calibrate_ticks(); |
2692 |
|
2693 |
/* terminal init */
|
2694 |
if (nographic) {
|
2695 |
dumb_display_init(ds); |
2696 |
} else {
|
2697 |
#ifdef CONFIG_SDL
|
2698 |
sdl_display_init(ds); |
2699 |
#else
|
2700 |
dumb_display_init(ds); |
2701 |
#endif
|
2702 |
} |
2703 |
|
2704 |
/* setup cpu signal handlers for MMU / self modifying code handling */
|
2705 |
#if !defined(CONFIG_SOFTMMU)
|
2706 |
|
2707 |
#if defined (TARGET_I386) && defined(USE_CODE_COPY)
|
2708 |
{ |
2709 |
stack_t stk; |
2710 |
signal_stack = memalign(16, SIGNAL_STACK_SIZE);
|
2711 |
stk.ss_sp = signal_stack; |
2712 |
stk.ss_size = SIGNAL_STACK_SIZE; |
2713 |
stk.ss_flags = 0;
|
2714 |
|
2715 |
if (sigaltstack(&stk, NULL) < 0) { |
2716 |
perror("sigaltstack");
|
2717 |
exit(1);
|
2718 |
} |
2719 |
} |
2720 |
#endif
|
2721 |
{ |
2722 |
struct sigaction act;
|
2723 |
|
2724 |
sigfillset(&act.sa_mask); |
2725 |
act.sa_flags = SA_SIGINFO; |
2726 |
#if defined (TARGET_I386) && defined(USE_CODE_COPY)
|
2727 |
act.sa_flags |= SA_ONSTACK; |
2728 |
#endif
|
2729 |
act.sa_sigaction = host_segv_handler; |
2730 |
sigaction(SIGSEGV, &act, NULL);
|
2731 |
sigaction(SIGBUS, &act, NULL);
|
2732 |
#if defined (TARGET_I386) && defined(USE_CODE_COPY)
|
2733 |
sigaction(SIGFPE, &act, NULL);
|
2734 |
#endif
|
2735 |
} |
2736 |
#endif
|
2737 |
|
2738 |
#ifndef _WIN32
|
2739 |
{ |
2740 |
struct sigaction act;
|
2741 |
sigfillset(&act.sa_mask); |
2742 |
act.sa_flags = 0;
|
2743 |
act.sa_handler = SIG_IGN; |
2744 |
sigaction(SIGPIPE, &act, NULL);
|
2745 |
} |
2746 |
#endif
|
2747 |
init_timers(); |
2748 |
|
2749 |
#if defined(TARGET_I386)
|
2750 |
pc_init(ram_size, vga_ram_size, boot_device, |
2751 |
ds, fd_filename, snapshot, |
2752 |
kernel_filename, kernel_cmdline, initrd_filename); |
2753 |
#elif defined(TARGET_PPC)
|
2754 |
ppc_init(ram_size, vga_ram_size, boot_device, |
2755 |
ds, fd_filename, snapshot, |
2756 |
kernel_filename, kernel_cmdline, initrd_filename); |
2757 |
#endif
|
2758 |
|
2759 |
/* launched after the device init so that it can display or not a
|
2760 |
banner */
|
2761 |
monitor_init(); |
2762 |
|
2763 |
gui_timer = qemu_new_timer(rt_clock, gui_update, NULL);
|
2764 |
qemu_mod_timer(gui_timer, qemu_get_clock(rt_clock)); |
2765 |
|
2766 |
#ifdef CONFIG_GDBSTUB
|
2767 |
if (use_gdbstub) {
|
2768 |
if (gdbserver_start(gdbstub_port) < 0) { |
2769 |
fprintf(stderr, "Could not open gdbserver socket on port %d\n",
|
2770 |
gdbstub_port); |
2771 |
exit(1);
|
2772 |
} else {
|
2773 |
printf("Waiting gdb connection on port %d\n", gdbstub_port);
|
2774 |
} |
2775 |
} else
|
2776 |
#endif
|
2777 |
if (start_emulation)
|
2778 |
{ |
2779 |
vm_start(); |
2780 |
} |
2781 |
term_init(); |
2782 |
main_loop(); |
2783 |
quit_timers(); |
2784 |
return 0; |
2785 |
} |