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/*
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* QEMU System Emulator
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*
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* Copyright (c) 2003-2008 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 <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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#include <zlib.h> |
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/* Needed early for CONFIG_BSD etc. */
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#include "config-host.h" |
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#ifndef _WIN32
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#include <libgen.h> |
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#include <pwd.h> |
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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/mman.h> |
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#include <sys/ioctl.h> |
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#include <sys/resource.h> |
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#include <sys/socket.h> |
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#include <netinet/in.h> |
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#include <net/if.h> |
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#include <arpa/inet.h> |
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#include <dirent.h> |
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#include <netdb.h> |
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#include <sys/select.h> |
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#ifdef CONFIG_BSD
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#include <sys/stat.h> |
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#if defined(__FreeBSD__) || defined(__FreeBSD_kernel__) || defined(__DragonFly__)
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#include <libutil.h> |
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#else
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#include <util.h> |
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#endif
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#else
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#ifdef __linux__
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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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#include <sys/prctl.h> |
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/* For the benefit of older linux systems which don't supply it,
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we use a local copy of hpet.h. */
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/* #include <linux/hpet.h> */
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#include "hpet.h" |
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#include <linux/ppdev.h> |
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#include <linux/parport.h> |
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#endif
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#ifdef __sun__
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#include <sys/stat.h> |
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#include <sys/ethernet.h> |
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#include <sys/sockio.h> |
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#include <netinet/arp.h> |
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#include <netinet/in.h> |
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#include <netinet/in_systm.h> |
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#include <netinet/ip.h> |
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#include <netinet/ip_icmp.h> // must come after ip.h |
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#include <netinet/udp.h> |
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#include <netinet/tcp.h> |
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#include <net/if.h> |
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#include <syslog.h> |
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#include <stropts.h> |
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/* See MySQL bug #7156 (http://bugs.mysql.com/bug.php?id=7156) for
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discussion about Solaris header problems */
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extern int madvise(caddr_t, size_t, int); |
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#endif
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#endif
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#endif
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#if defined(__OpenBSD__)
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#include <util.h> |
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#endif
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#if defined(CONFIG_VDE)
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#include <libvdeplug.h> |
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#endif
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#ifdef _WIN32
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#include <windows.h> |
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#include <mmsystem.h> |
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#endif
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#ifdef CONFIG_SDL
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#if defined(__APPLE__) || defined(main)
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#include <SDL.h> |
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int qemu_main(int argc, char **argv, char **envp); |
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int main(int argc, char **argv) |
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{ |
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return qemu_main(argc, argv, NULL); |
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} |
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#undef main
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#define main qemu_main
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#endif
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#endif /* CONFIG_SDL */ |
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#ifdef CONFIG_COCOA
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#undef main
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#define main qemu_main
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#endif /* CONFIG_COCOA */ |
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#include "hw/hw.h" |
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#include "hw/boards.h" |
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#include "hw/usb.h" |
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#include "hw/pcmcia.h" |
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#include "hw/pc.h" |
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#include "hw/audiodev.h" |
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#include "hw/isa.h" |
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#include "hw/baum.h" |
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#include "hw/bt.h" |
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#include "hw/watchdog.h" |
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#include "hw/smbios.h" |
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#include "hw/xen.h" |
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#include "hw/qdev.h" |
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#include "hw/loader.h" |
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#include "bt-host.h" |
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#include "net.h" |
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#include "net/slirp.h" |
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#include "monitor.h" |
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#include "console.h" |
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#include "sysemu.h" |
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#include "gdbstub.h" |
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#include "qemu-timer.h" |
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#include "qemu-char.h" |
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#include "cache-utils.h" |
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#include "block.h" |
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#include "block_int.h" |
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#include "block-migration.h" |
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#include "dma.h" |
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#include "audio/audio.h" |
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#include "migration.h" |
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#include "kvm.h" |
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#include "balloon.h" |
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#include "qemu-option.h" |
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#include "qemu-config.h" |
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#include "disas.h" |
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#include "exec-all.h" |
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#include "qemu_socket.h" |
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#include "slirp/libslirp.h" |
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#include "qemu-queue.h" |
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//#define DEBUG_NET
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//#define DEBUG_SLIRP
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#define DEFAULT_RAM_SIZE 128 |
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/* Maximum number of monitor devices */
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#define MAX_MONITOR_DEVICES 10 |
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static const char *data_dir; |
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const char *bios_name = NULL; |
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/* Note: drives_table[MAX_DRIVES] is a dummy block driver if none available
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to store the VM snapshots */
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struct drivelist drives = QTAILQ_HEAD_INITIALIZER(drives);
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struct driveoptlist driveopts = QTAILQ_HEAD_INITIALIZER(driveopts);
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enum vga_retrace_method vga_retrace_method = VGA_RETRACE_DUMB;
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static DisplayState *display_state;
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DisplayType display_type = DT_DEFAULT; |
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const char* keyboard_layout = NULL; |
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ram_addr_t ram_size; |
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int nb_nics;
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NICInfo nd_table[MAX_NICS]; |
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int vm_running;
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int autostart;
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static int rtc_utc = 1; |
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static int rtc_date_offset = -1; /* -1 means no change */ |
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QEMUClock *rtc_clock; |
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int vga_interface_type = VGA_NONE;
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#ifdef TARGET_SPARC
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int graphic_width = 1024; |
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int graphic_height = 768; |
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int graphic_depth = 8; |
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#else
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int graphic_width = 800; |
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int graphic_height = 600; |
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int graphic_depth = 15; |
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#endif
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static int full_screen = 0; |
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#ifdef CONFIG_SDL
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static int no_frame = 0; |
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#endif
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int no_quit = 0; |
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CharDriverState *serial_hds[MAX_SERIAL_PORTS]; |
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CharDriverState *parallel_hds[MAX_PARALLEL_PORTS]; |
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CharDriverState *virtcon_hds[MAX_VIRTIO_CONSOLES]; |
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CharDriverState *monitor_hds[MAX_MONITOR_DEVICES]; |
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#ifdef TARGET_I386
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int win2k_install_hack = 0; |
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int rtc_td_hack = 0; |
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#endif
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int usb_enabled = 0; |
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int singlestep = 0; |
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int smp_cpus = 1; |
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int max_cpus = 0; |
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int smp_cores = 1; |
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int smp_threads = 1; |
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const char *vnc_display; |
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int acpi_enabled = 1; |
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int no_hpet = 0; |
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int fd_bootchk = 1; |
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int no_reboot = 0; |
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int no_shutdown = 0; |
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int cursor_hide = 1; |
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int graphic_rotate = 0; |
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uint8_t irq0override = 1;
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#ifndef _WIN32
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int daemonize = 0; |
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#endif
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const char *watchdog; |
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const char *option_rom[MAX_OPTION_ROMS]; |
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int nb_option_roms;
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int semihosting_enabled = 0; |
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#ifdef TARGET_ARM
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int old_param = 0; |
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#endif
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const char *qemu_name; |
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int alt_grab = 0; |
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int ctrl_grab = 0; |
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#if defined(TARGET_SPARC) || defined(TARGET_PPC)
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unsigned int nb_prom_envs = 0; |
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const char *prom_envs[MAX_PROM_ENVS]; |
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#endif
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int boot_menu;
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int nb_numa_nodes;
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uint64_t node_mem[MAX_NODES]; |
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uint64_t node_cpumask[MAX_NODES]; |
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static CPUState *cur_cpu;
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static CPUState *next_cpu;
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static int timer_alarm_pending = 1; |
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/* Conversion factor from emulated instructions to virtual clock ticks. */
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static int icount_time_shift; |
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/* Arbitrarily pick 1MIPS as the minimum allowable speed. */
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#define MAX_ICOUNT_SHIFT 10 |
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/* Compensate for varying guest execution speed. */
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static int64_t qemu_icount_bias;
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static QEMUTimer *icount_rt_timer;
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static QEMUTimer *icount_vm_timer;
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static QEMUTimer *nographic_timer;
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uint8_t qemu_uuid[16];
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static QEMUBootSetHandler *boot_set_handler;
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static void *boot_set_opaque; |
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static int default_serial = 1; |
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static int default_parallel = 1; |
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static int default_monitor = 1; |
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static int default_vga = 1; |
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static struct { |
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const char *driver; |
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int *flag;
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} default_list[] = { |
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{ .driver = "isa-serial", .flag = &default_serial },
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{ .driver = "isa-parallel", .flag = &default_parallel },
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{ .driver = "VGA", .flag = &default_vga },
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{ .driver = "Cirrus VGA", .flag = &default_vga },
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{ .driver = "QEMUware SVGA", .flag = &default_vga },
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}; |
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static int default_driver_check(QemuOpts *opts, void *opaque) |
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{ |
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const char *driver = qemu_opt_get(opts, "driver"); |
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int i;
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if (!driver)
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return 0; |
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for (i = 0; i < ARRAY_SIZE(default_list); i++) { |
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if (strcmp(default_list[i].driver, driver) != 0) |
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continue;
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*(default_list[i].flag) = 0;
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} |
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return 0; |
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} |
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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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PicState2 *isa_pic; |
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/***********************************************************/
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void hw_error(const char *fmt, ...) |
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{ |
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va_list ap; |
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CPUState *env; |
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va_start(ap, fmt); |
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fprintf(stderr, "qemu: hardware error: ");
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vfprintf(stderr, fmt, ap); |
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fprintf(stderr, "\n");
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for(env = first_cpu; env != NULL; env = env->next_cpu) { |
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fprintf(stderr, "CPU #%d:\n", env->cpu_index);
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#ifdef TARGET_I386
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cpu_dump_state(env, stderr, fprintf, X86_DUMP_FPU); |
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#else
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cpu_dump_state(env, stderr, fprintf, 0);
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#endif
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} |
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va_end(ap); |
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abort(); |
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} |
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static void set_proc_name(const char *s) |
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{ |
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#if defined(__linux__) && defined(PR_SET_NAME)
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char name[16]; |
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if (!s)
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return;
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name[sizeof(name) - 1] = 0; |
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strncpy(name, s, sizeof(name));
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/* Could rewrite argv[0] too, but that's a bit more complicated.
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This simple way is enough for `top'. */
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prctl(PR_SET_NAME, name); |
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#endif
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} |
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/***************/
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/* ballooning */
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static QEMUBalloonEvent *qemu_balloon_event;
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void *qemu_balloon_event_opaque;
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void qemu_add_balloon_handler(QEMUBalloonEvent *func, void *opaque) |
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{ |
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qemu_balloon_event = func; |
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qemu_balloon_event_opaque = opaque; |
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} |
359 |
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void qemu_balloon(ram_addr_t target)
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{ |
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if (qemu_balloon_event)
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qemu_balloon_event(qemu_balloon_event_opaque, target); |
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} |
365 |
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ram_addr_t qemu_balloon_status(void)
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{ |
368 |
if (qemu_balloon_event)
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return qemu_balloon_event(qemu_balloon_event_opaque, 0); |
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return 0; |
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} |
372 |
|
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/***********************************************************/
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/* keyboard/mouse */
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static QEMUPutKBDEvent *qemu_put_kbd_event;
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static void *qemu_put_kbd_event_opaque; |
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static QEMUPutMouseEntry *qemu_put_mouse_event_head;
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static QEMUPutMouseEntry *qemu_put_mouse_event_current;
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|
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void qemu_add_kbd_event_handler(QEMUPutKBDEvent *func, void *opaque) |
382 |
{ |
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qemu_put_kbd_event_opaque = opaque; |
384 |
qemu_put_kbd_event = func; |
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} |
386 |
|
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QEMUPutMouseEntry *qemu_add_mouse_event_handler(QEMUPutMouseEvent *func, |
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void *opaque, int absolute, |
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const char *name) |
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{ |
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QEMUPutMouseEntry *s, *cursor; |
392 |
|
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s = qemu_mallocz(sizeof(QEMUPutMouseEntry));
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|
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s->qemu_put_mouse_event = func; |
396 |
s->qemu_put_mouse_event_opaque = opaque; |
397 |
s->qemu_put_mouse_event_absolute = absolute; |
398 |
s->qemu_put_mouse_event_name = qemu_strdup(name); |
399 |
s->next = NULL;
|
400 |
|
401 |
if (!qemu_put_mouse_event_head) {
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qemu_put_mouse_event_head = qemu_put_mouse_event_current = s; |
403 |
return s;
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} |
405 |
|
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cursor = qemu_put_mouse_event_head; |
407 |
while (cursor->next != NULL) |
408 |
cursor = cursor->next; |
409 |
|
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cursor->next = s; |
411 |
qemu_put_mouse_event_current = s; |
412 |
|
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return s;
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} |
415 |
|
416 |
void qemu_remove_mouse_event_handler(QEMUPutMouseEntry *entry)
|
417 |
{ |
418 |
QEMUPutMouseEntry *prev = NULL, *cursor;
|
419 |
|
420 |
if (!qemu_put_mouse_event_head || entry == NULL) |
421 |
return;
|
422 |
|
423 |
cursor = qemu_put_mouse_event_head; |
424 |
while (cursor != NULL && cursor != entry) { |
425 |
prev = cursor; |
426 |
cursor = cursor->next; |
427 |
} |
428 |
|
429 |
if (cursor == NULL) // does not exist or list empty |
430 |
return;
|
431 |
else if (prev == NULL) { // entry is head |
432 |
qemu_put_mouse_event_head = cursor->next; |
433 |
if (qemu_put_mouse_event_current == entry)
|
434 |
qemu_put_mouse_event_current = cursor->next; |
435 |
qemu_free(entry->qemu_put_mouse_event_name); |
436 |
qemu_free(entry); |
437 |
return;
|
438 |
} |
439 |
|
440 |
prev->next = entry->next; |
441 |
|
442 |
if (qemu_put_mouse_event_current == entry)
|
443 |
qemu_put_mouse_event_current = prev; |
444 |
|
445 |
qemu_free(entry->qemu_put_mouse_event_name); |
446 |
qemu_free(entry); |
447 |
} |
448 |
|
449 |
void kbd_put_keycode(int keycode) |
450 |
{ |
451 |
if (qemu_put_kbd_event) {
|
452 |
qemu_put_kbd_event(qemu_put_kbd_event_opaque, keycode); |
453 |
} |
454 |
} |
455 |
|
456 |
void kbd_mouse_event(int dx, int dy, int dz, int buttons_state) |
457 |
{ |
458 |
QEMUPutMouseEvent *mouse_event; |
459 |
void *mouse_event_opaque;
|
460 |
int width;
|
461 |
|
462 |
if (!qemu_put_mouse_event_current) {
|
463 |
return;
|
464 |
} |
465 |
|
466 |
mouse_event = |
467 |
qemu_put_mouse_event_current->qemu_put_mouse_event; |
468 |
mouse_event_opaque = |
469 |
qemu_put_mouse_event_current->qemu_put_mouse_event_opaque; |
470 |
|
471 |
if (mouse_event) {
|
472 |
if (graphic_rotate) {
|
473 |
if (qemu_put_mouse_event_current->qemu_put_mouse_event_absolute)
|
474 |
width = 0x7fff;
|
475 |
else
|
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width = graphic_width - 1;
|
477 |
mouse_event(mouse_event_opaque, |
478 |
width - dy, dx, dz, buttons_state); |
479 |
} else
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480 |
mouse_event(mouse_event_opaque, |
481 |
dx, dy, dz, buttons_state); |
482 |
} |
483 |
} |
484 |
|
485 |
int kbd_mouse_is_absolute(void) |
486 |
{ |
487 |
if (!qemu_put_mouse_event_current)
|
488 |
return 0; |
489 |
|
490 |
return qemu_put_mouse_event_current->qemu_put_mouse_event_absolute;
|
491 |
} |
492 |
|
493 |
void do_info_mice(Monitor *mon)
|
494 |
{ |
495 |
QEMUPutMouseEntry *cursor; |
496 |
int index = 0; |
497 |
|
498 |
if (!qemu_put_mouse_event_head) {
|
499 |
monitor_printf(mon, "No mouse devices connected\n");
|
500 |
return;
|
501 |
} |
502 |
|
503 |
monitor_printf(mon, "Mouse devices available:\n");
|
504 |
cursor = qemu_put_mouse_event_head; |
505 |
while (cursor != NULL) { |
506 |
monitor_printf(mon, "%c Mouse #%d: %s\n",
|
507 |
(cursor == qemu_put_mouse_event_current ? '*' : ' '), |
508 |
index, cursor->qemu_put_mouse_event_name); |
509 |
index++; |
510 |
cursor = cursor->next; |
511 |
} |
512 |
} |
513 |
|
514 |
void do_mouse_set(Monitor *mon, const QDict *qdict) |
515 |
{ |
516 |
QEMUPutMouseEntry *cursor; |
517 |
int i = 0; |
518 |
int index = qdict_get_int(qdict, "index"); |
519 |
|
520 |
if (!qemu_put_mouse_event_head) {
|
521 |
monitor_printf(mon, "No mouse devices connected\n");
|
522 |
return;
|
523 |
} |
524 |
|
525 |
cursor = qemu_put_mouse_event_head; |
526 |
while (cursor != NULL && index != i) { |
527 |
i++; |
528 |
cursor = cursor->next; |
529 |
} |
530 |
|
531 |
if (cursor != NULL) |
532 |
qemu_put_mouse_event_current = cursor; |
533 |
else
|
534 |
monitor_printf(mon, "Mouse at given index not found\n");
|
535 |
} |
536 |
|
537 |
/* compute with 96 bit intermediate result: (a*b)/c */
|
538 |
uint64_t muldiv64(uint64_t a, uint32_t b, uint32_t c) |
539 |
{ |
540 |
union {
|
541 |
uint64_t ll; |
542 |
struct {
|
543 |
#ifdef HOST_WORDS_BIGENDIAN
|
544 |
uint32_t high, low; |
545 |
#else
|
546 |
uint32_t low, high; |
547 |
#endif
|
548 |
} l; |
549 |
} u, res; |
550 |
uint64_t rl, rh; |
551 |
|
552 |
u.ll = a; |
553 |
rl = (uint64_t)u.l.low * (uint64_t)b; |
554 |
rh = (uint64_t)u.l.high * (uint64_t)b; |
555 |
rh += (rl >> 32);
|
556 |
res.l.high = rh / c; |
557 |
res.l.low = (((rh % c) << 32) + (rl & 0xffffffff)) / c; |
558 |
return res.ll;
|
559 |
} |
560 |
|
561 |
/***********************************************************/
|
562 |
/* real time host monotonic timer */
|
563 |
|
564 |
static int64_t get_clock_realtime(void) |
565 |
{ |
566 |
struct timeval tv;
|
567 |
|
568 |
gettimeofday(&tv, NULL);
|
569 |
return tv.tv_sec * 1000000000LL + (tv.tv_usec * 1000); |
570 |
} |
571 |
|
572 |
#ifdef WIN32
|
573 |
|
574 |
static int64_t clock_freq;
|
575 |
|
576 |
static void init_get_clock(void) |
577 |
{ |
578 |
LARGE_INTEGER freq; |
579 |
int ret;
|
580 |
ret = QueryPerformanceFrequency(&freq); |
581 |
if (ret == 0) { |
582 |
fprintf(stderr, "Could not calibrate ticks\n");
|
583 |
exit(1);
|
584 |
} |
585 |
clock_freq = freq.QuadPart; |
586 |
} |
587 |
|
588 |
static int64_t get_clock(void) |
589 |
{ |
590 |
LARGE_INTEGER ti; |
591 |
QueryPerformanceCounter(&ti); |
592 |
return muldiv64(ti.QuadPart, get_ticks_per_sec(), clock_freq);
|
593 |
} |
594 |
|
595 |
#else
|
596 |
|
597 |
static int use_rt_clock; |
598 |
|
599 |
static void init_get_clock(void) |
600 |
{ |
601 |
use_rt_clock = 0;
|
602 |
#if defined(__linux__) || (defined(__FreeBSD__) && __FreeBSD_version >= 500000) \ |
603 |
|| defined(__DragonFly__) || defined(__FreeBSD_kernel__) |
604 |
{ |
605 |
struct timespec ts;
|
606 |
if (clock_gettime(CLOCK_MONOTONIC, &ts) == 0) { |
607 |
use_rt_clock = 1;
|
608 |
} |
609 |
} |
610 |
#endif
|
611 |
} |
612 |
|
613 |
static int64_t get_clock(void) |
614 |
{ |
615 |
#if defined(__linux__) || (defined(__FreeBSD__) && __FreeBSD_version >= 500000) \ |
616 |
|| defined(__DragonFly__) || defined(__FreeBSD_kernel__) |
617 |
if (use_rt_clock) {
|
618 |
struct timespec ts;
|
619 |
clock_gettime(CLOCK_MONOTONIC, &ts); |
620 |
return ts.tv_sec * 1000000000LL + ts.tv_nsec; |
621 |
} else
|
622 |
#endif
|
623 |
{ |
624 |
/* XXX: using gettimeofday leads to problems if the date
|
625 |
changes, so it should be avoided. */
|
626 |
return get_clock_realtime();
|
627 |
} |
628 |
} |
629 |
#endif
|
630 |
|
631 |
/* Return the virtual CPU time, based on the instruction counter. */
|
632 |
static int64_t cpu_get_icount(void) |
633 |
{ |
634 |
int64_t icount; |
635 |
CPUState *env = cpu_single_env;; |
636 |
icount = qemu_icount; |
637 |
if (env) {
|
638 |
if (!can_do_io(env))
|
639 |
fprintf(stderr, "Bad clock read\n");
|
640 |
icount -= (env->icount_decr.u16.low + env->icount_extra); |
641 |
} |
642 |
return qemu_icount_bias + (icount << icount_time_shift);
|
643 |
} |
644 |
|
645 |
/***********************************************************/
|
646 |
/* guest cycle counter */
|
647 |
|
648 |
typedef struct TimersState { |
649 |
int64_t cpu_ticks_prev; |
650 |
int64_t cpu_ticks_offset; |
651 |
int64_t cpu_clock_offset; |
652 |
int32_t cpu_ticks_enabled; |
653 |
int64_t dummy; |
654 |
} TimersState; |
655 |
|
656 |
TimersState timers_state; |
657 |
|
658 |
/* return the host CPU cycle counter and handle stop/restart */
|
659 |
int64_t cpu_get_ticks(void)
|
660 |
{ |
661 |
if (use_icount) {
|
662 |
return cpu_get_icount();
|
663 |
} |
664 |
if (!timers_state.cpu_ticks_enabled) {
|
665 |
return timers_state.cpu_ticks_offset;
|
666 |
} else {
|
667 |
int64_t ticks; |
668 |
ticks = cpu_get_real_ticks(); |
669 |
if (timers_state.cpu_ticks_prev > ticks) {
|
670 |
/* Note: non increasing ticks may happen if the host uses
|
671 |
software suspend */
|
672 |
timers_state.cpu_ticks_offset += timers_state.cpu_ticks_prev - ticks; |
673 |
} |
674 |
timers_state.cpu_ticks_prev = ticks; |
675 |
return ticks + timers_state.cpu_ticks_offset;
|
676 |
} |
677 |
} |
678 |
|
679 |
/* return the host CPU monotonic timer and handle stop/restart */
|
680 |
static int64_t cpu_get_clock(void) |
681 |
{ |
682 |
int64_t ti; |
683 |
if (!timers_state.cpu_ticks_enabled) {
|
684 |
return timers_state.cpu_clock_offset;
|
685 |
} else {
|
686 |
ti = get_clock(); |
687 |
return ti + timers_state.cpu_clock_offset;
|
688 |
} |
689 |
} |
690 |
|
691 |
/* enable cpu_get_ticks() */
|
692 |
void cpu_enable_ticks(void) |
693 |
{ |
694 |
if (!timers_state.cpu_ticks_enabled) {
|
695 |
timers_state.cpu_ticks_offset -= cpu_get_real_ticks(); |
696 |
timers_state.cpu_clock_offset -= get_clock(); |
697 |
timers_state.cpu_ticks_enabled = 1;
|
698 |
} |
699 |
} |
700 |
|
701 |
/* disable cpu_get_ticks() : the clock is stopped. You must not call
|
702 |
cpu_get_ticks() after that. */
|
703 |
void cpu_disable_ticks(void) |
704 |
{ |
705 |
if (timers_state.cpu_ticks_enabled) {
|
706 |
timers_state.cpu_ticks_offset = cpu_get_ticks(); |
707 |
timers_state.cpu_clock_offset = cpu_get_clock(); |
708 |
timers_state.cpu_ticks_enabled = 0;
|
709 |
} |
710 |
} |
711 |
|
712 |
/***********************************************************/
|
713 |
/* timers */
|
714 |
|
715 |
#define QEMU_CLOCK_REALTIME 0 |
716 |
#define QEMU_CLOCK_VIRTUAL 1 |
717 |
#define QEMU_CLOCK_HOST 2 |
718 |
|
719 |
struct QEMUClock {
|
720 |
int type;
|
721 |
/* XXX: add frequency */
|
722 |
}; |
723 |
|
724 |
struct QEMUTimer {
|
725 |
QEMUClock *clock; |
726 |
int64_t expire_time; |
727 |
QEMUTimerCB *cb; |
728 |
void *opaque;
|
729 |
struct QEMUTimer *next;
|
730 |
}; |
731 |
|
732 |
struct qemu_alarm_timer {
|
733 |
char const *name; |
734 |
unsigned int flags; |
735 |
|
736 |
int (*start)(struct qemu_alarm_timer *t); |
737 |
void (*stop)(struct qemu_alarm_timer *t); |
738 |
void (*rearm)(struct qemu_alarm_timer *t); |
739 |
void *priv;
|
740 |
}; |
741 |
|
742 |
#define ALARM_FLAG_DYNTICKS 0x1 |
743 |
#define ALARM_FLAG_EXPIRED 0x2 |
744 |
|
745 |
static inline int alarm_has_dynticks(struct qemu_alarm_timer *t) |
746 |
{ |
747 |
return t && (t->flags & ALARM_FLAG_DYNTICKS);
|
748 |
} |
749 |
|
750 |
static void qemu_rearm_alarm_timer(struct qemu_alarm_timer *t) |
751 |
{ |
752 |
if (!alarm_has_dynticks(t))
|
753 |
return;
|
754 |
|
755 |
t->rearm(t); |
756 |
} |
757 |
|
758 |
/* TODO: MIN_TIMER_REARM_US should be optimized */
|
759 |
#define MIN_TIMER_REARM_US 250 |
760 |
|
761 |
static struct qemu_alarm_timer *alarm_timer; |
762 |
|
763 |
#ifdef _WIN32
|
764 |
|
765 |
struct qemu_alarm_win32 {
|
766 |
MMRESULT timerId; |
767 |
unsigned int period; |
768 |
} alarm_win32_data = {0, -1}; |
769 |
|
770 |
static int win32_start_timer(struct qemu_alarm_timer *t); |
771 |
static void win32_stop_timer(struct qemu_alarm_timer *t); |
772 |
static void win32_rearm_timer(struct qemu_alarm_timer *t); |
773 |
|
774 |
#else
|
775 |
|
776 |
static int unix_start_timer(struct qemu_alarm_timer *t); |
777 |
static void unix_stop_timer(struct qemu_alarm_timer *t); |
778 |
|
779 |
#ifdef __linux__
|
780 |
|
781 |
static int dynticks_start_timer(struct qemu_alarm_timer *t); |
782 |
static void dynticks_stop_timer(struct qemu_alarm_timer *t); |
783 |
static void dynticks_rearm_timer(struct qemu_alarm_timer *t); |
784 |
|
785 |
static int hpet_start_timer(struct qemu_alarm_timer *t); |
786 |
static void hpet_stop_timer(struct qemu_alarm_timer *t); |
787 |
|
788 |
static int rtc_start_timer(struct qemu_alarm_timer *t); |
789 |
static void rtc_stop_timer(struct qemu_alarm_timer *t); |
790 |
|
791 |
#endif /* __linux__ */ |
792 |
|
793 |
#endif /* _WIN32 */ |
794 |
|
795 |
/* Correlation between real and virtual time is always going to be
|
796 |
fairly approximate, so ignore small variation.
|
797 |
When the guest is idle real and virtual time will be aligned in
|
798 |
the IO wait loop. */
|
799 |
#define ICOUNT_WOBBLE (get_ticks_per_sec() / 10) |
800 |
|
801 |
static void icount_adjust(void) |
802 |
{ |
803 |
int64_t cur_time; |
804 |
int64_t cur_icount; |
805 |
int64_t delta; |
806 |
static int64_t last_delta;
|
807 |
/* If the VM is not running, then do nothing. */
|
808 |
if (!vm_running)
|
809 |
return;
|
810 |
|
811 |
cur_time = cpu_get_clock(); |
812 |
cur_icount = qemu_get_clock(vm_clock); |
813 |
delta = cur_icount - cur_time; |
814 |
/* FIXME: This is a very crude algorithm, somewhat prone to oscillation. */
|
815 |
if (delta > 0 |
816 |
&& last_delta + ICOUNT_WOBBLE < delta * 2
|
817 |
&& icount_time_shift > 0) {
|
818 |
/* The guest is getting too far ahead. Slow time down. */
|
819 |
icount_time_shift--; |
820 |
} |
821 |
if (delta < 0 |
822 |
&& last_delta - ICOUNT_WOBBLE > delta * 2
|
823 |
&& icount_time_shift < MAX_ICOUNT_SHIFT) { |
824 |
/* The guest is getting too far behind. Speed time up. */
|
825 |
icount_time_shift++; |
826 |
} |
827 |
last_delta = delta; |
828 |
qemu_icount_bias = cur_icount - (qemu_icount << icount_time_shift); |
829 |
} |
830 |
|
831 |
static void icount_adjust_rt(void * opaque) |
832 |
{ |
833 |
qemu_mod_timer(icount_rt_timer, |
834 |
qemu_get_clock(rt_clock) + 1000);
|
835 |
icount_adjust(); |
836 |
} |
837 |
|
838 |
static void icount_adjust_vm(void * opaque) |
839 |
{ |
840 |
qemu_mod_timer(icount_vm_timer, |
841 |
qemu_get_clock(vm_clock) + get_ticks_per_sec() / 10);
|
842 |
icount_adjust(); |
843 |
} |
844 |
|
845 |
static void init_icount_adjust(void) |
846 |
{ |
847 |
/* Have both realtime and virtual time triggers for speed adjustment.
|
848 |
The realtime trigger catches emulated time passing too slowly,
|
849 |
the virtual time trigger catches emulated time passing too fast.
|
850 |
Realtime triggers occur even when idle, so use them less frequently
|
851 |
than VM triggers. */
|
852 |
icount_rt_timer = qemu_new_timer(rt_clock, icount_adjust_rt, NULL);
|
853 |
qemu_mod_timer(icount_rt_timer, |
854 |
qemu_get_clock(rt_clock) + 1000);
|
855 |
icount_vm_timer = qemu_new_timer(vm_clock, icount_adjust_vm, NULL);
|
856 |
qemu_mod_timer(icount_vm_timer, |
857 |
qemu_get_clock(vm_clock) + get_ticks_per_sec() / 10);
|
858 |
} |
859 |
|
860 |
static struct qemu_alarm_timer alarm_timers[] = { |
861 |
#ifndef _WIN32
|
862 |
#ifdef __linux__
|
863 |
{"dynticks", ALARM_FLAG_DYNTICKS, dynticks_start_timer,
|
864 |
dynticks_stop_timer, dynticks_rearm_timer, NULL},
|
865 |
/* HPET - if available - is preferred */
|
866 |
{"hpet", 0, hpet_start_timer, hpet_stop_timer, NULL, NULL}, |
867 |
/* ...otherwise try RTC */
|
868 |
{"rtc", 0, rtc_start_timer, rtc_stop_timer, NULL, NULL}, |
869 |
#endif
|
870 |
{"unix", 0, unix_start_timer, unix_stop_timer, NULL, NULL}, |
871 |
#else
|
872 |
{"dynticks", ALARM_FLAG_DYNTICKS, win32_start_timer,
|
873 |
win32_stop_timer, win32_rearm_timer, &alarm_win32_data}, |
874 |
{"win32", 0, win32_start_timer, |
875 |
win32_stop_timer, NULL, &alarm_win32_data},
|
876 |
#endif
|
877 |
{NULL, }
|
878 |
}; |
879 |
|
880 |
static void show_available_alarms(void) |
881 |
{ |
882 |
int i;
|
883 |
|
884 |
printf("Available alarm timers, in order of precedence:\n");
|
885 |
for (i = 0; alarm_timers[i].name; i++) |
886 |
printf("%s\n", alarm_timers[i].name);
|
887 |
} |
888 |
|
889 |
static void configure_alarms(char const *opt) |
890 |
{ |
891 |
int i;
|
892 |
int cur = 0; |
893 |
int count = ARRAY_SIZE(alarm_timers) - 1; |
894 |
char *arg;
|
895 |
char *name;
|
896 |
struct qemu_alarm_timer tmp;
|
897 |
|
898 |
if (!strcmp(opt, "?")) { |
899 |
show_available_alarms(); |
900 |
exit(0);
|
901 |
} |
902 |
|
903 |
arg = qemu_strdup(opt); |
904 |
|
905 |
/* Reorder the array */
|
906 |
name = strtok(arg, ",");
|
907 |
while (name) {
|
908 |
for (i = 0; i < count && alarm_timers[i].name; i++) { |
909 |
if (!strcmp(alarm_timers[i].name, name))
|
910 |
break;
|
911 |
} |
912 |
|
913 |
if (i == count) {
|
914 |
fprintf(stderr, "Unknown clock %s\n", name);
|
915 |
goto next;
|
916 |
} |
917 |
|
918 |
if (i < cur)
|
919 |
/* Ignore */
|
920 |
goto next;
|
921 |
|
922 |
/* Swap */
|
923 |
tmp = alarm_timers[i]; |
924 |
alarm_timers[i] = alarm_timers[cur]; |
925 |
alarm_timers[cur] = tmp; |
926 |
|
927 |
cur++; |
928 |
next:
|
929 |
name = strtok(NULL, ","); |
930 |
} |
931 |
|
932 |
qemu_free(arg); |
933 |
|
934 |
if (cur) {
|
935 |
/* Disable remaining timers */
|
936 |
for (i = cur; i < count; i++)
|
937 |
alarm_timers[i].name = NULL;
|
938 |
} else {
|
939 |
show_available_alarms(); |
940 |
exit(1);
|
941 |
} |
942 |
} |
943 |
|
944 |
#define QEMU_NUM_CLOCKS 3 |
945 |
|
946 |
QEMUClock *rt_clock; |
947 |
QEMUClock *vm_clock; |
948 |
QEMUClock *host_clock; |
949 |
|
950 |
static QEMUTimer *active_timers[QEMU_NUM_CLOCKS];
|
951 |
|
952 |
static QEMUClock *qemu_new_clock(int type) |
953 |
{ |
954 |
QEMUClock *clock; |
955 |
clock = qemu_mallocz(sizeof(QEMUClock));
|
956 |
clock->type = type; |
957 |
return clock;
|
958 |
} |
959 |
|
960 |
QEMUTimer *qemu_new_timer(QEMUClock *clock, QEMUTimerCB *cb, void *opaque)
|
961 |
{ |
962 |
QEMUTimer *ts; |
963 |
|
964 |
ts = qemu_mallocz(sizeof(QEMUTimer));
|
965 |
ts->clock = clock; |
966 |
ts->cb = cb; |
967 |
ts->opaque = opaque; |
968 |
return ts;
|
969 |
} |
970 |
|
971 |
void qemu_free_timer(QEMUTimer *ts)
|
972 |
{ |
973 |
qemu_free(ts); |
974 |
} |
975 |
|
976 |
/* stop a timer, but do not dealloc it */
|
977 |
void qemu_del_timer(QEMUTimer *ts)
|
978 |
{ |
979 |
QEMUTimer **pt, *t; |
980 |
|
981 |
/* NOTE: this code must be signal safe because
|
982 |
qemu_timer_expired() can be called from a signal. */
|
983 |
pt = &active_timers[ts->clock->type]; |
984 |
for(;;) {
|
985 |
t = *pt; |
986 |
if (!t)
|
987 |
break;
|
988 |
if (t == ts) {
|
989 |
*pt = t->next; |
990 |
break;
|
991 |
} |
992 |
pt = &t->next; |
993 |
} |
994 |
} |
995 |
|
996 |
/* modify the current timer so that it will be fired when current_time
|
997 |
>= expire_time. The corresponding callback will be called. */
|
998 |
void qemu_mod_timer(QEMUTimer *ts, int64_t expire_time)
|
999 |
{ |
1000 |
QEMUTimer **pt, *t; |
1001 |
|
1002 |
qemu_del_timer(ts); |
1003 |
|
1004 |
/* add the timer in the sorted list */
|
1005 |
/* NOTE: this code must be signal safe because
|
1006 |
qemu_timer_expired() can be called from a signal. */
|
1007 |
pt = &active_timers[ts->clock->type]; |
1008 |
for(;;) {
|
1009 |
t = *pt; |
1010 |
if (!t)
|
1011 |
break;
|
1012 |
if (t->expire_time > expire_time)
|
1013 |
break;
|
1014 |
pt = &t->next; |
1015 |
} |
1016 |
ts->expire_time = expire_time; |
1017 |
ts->next = *pt; |
1018 |
*pt = ts; |
1019 |
|
1020 |
/* Rearm if necessary */
|
1021 |
if (pt == &active_timers[ts->clock->type]) {
|
1022 |
if ((alarm_timer->flags & ALARM_FLAG_EXPIRED) == 0) { |
1023 |
qemu_rearm_alarm_timer(alarm_timer); |
1024 |
} |
1025 |
/* Interrupt execution to force deadline recalculation. */
|
1026 |
if (use_icount)
|
1027 |
qemu_notify_event(); |
1028 |
} |
1029 |
} |
1030 |
|
1031 |
int qemu_timer_pending(QEMUTimer *ts)
|
1032 |
{ |
1033 |
QEMUTimer *t; |
1034 |
for(t = active_timers[ts->clock->type]; t != NULL; t = t->next) { |
1035 |
if (t == ts)
|
1036 |
return 1; |
1037 |
} |
1038 |
return 0; |
1039 |
} |
1040 |
|
1041 |
int qemu_timer_expired(QEMUTimer *timer_head, int64_t current_time)
|
1042 |
{ |
1043 |
if (!timer_head)
|
1044 |
return 0; |
1045 |
return (timer_head->expire_time <= current_time);
|
1046 |
} |
1047 |
|
1048 |
static void qemu_run_timers(QEMUTimer **ptimer_head, int64_t current_time) |
1049 |
{ |
1050 |
QEMUTimer *ts; |
1051 |
|
1052 |
for(;;) {
|
1053 |
ts = *ptimer_head; |
1054 |
if (!ts || ts->expire_time > current_time)
|
1055 |
break;
|
1056 |
/* remove timer from the list before calling the callback */
|
1057 |
*ptimer_head = ts->next; |
1058 |
ts->next = NULL;
|
1059 |
|
1060 |
/* run the callback (the timer list can be modified) */
|
1061 |
ts->cb(ts->opaque); |
1062 |
} |
1063 |
} |
1064 |
|
1065 |
int64_t qemu_get_clock(QEMUClock *clock) |
1066 |
{ |
1067 |
switch(clock->type) {
|
1068 |
case QEMU_CLOCK_REALTIME:
|
1069 |
return get_clock() / 1000000; |
1070 |
default:
|
1071 |
case QEMU_CLOCK_VIRTUAL:
|
1072 |
if (use_icount) {
|
1073 |
return cpu_get_icount();
|
1074 |
} else {
|
1075 |
return cpu_get_clock();
|
1076 |
} |
1077 |
case QEMU_CLOCK_HOST:
|
1078 |
return get_clock_realtime();
|
1079 |
} |
1080 |
} |
1081 |
|
1082 |
static void init_clocks(void) |
1083 |
{ |
1084 |
init_get_clock(); |
1085 |
rt_clock = qemu_new_clock(QEMU_CLOCK_REALTIME); |
1086 |
vm_clock = qemu_new_clock(QEMU_CLOCK_VIRTUAL); |
1087 |
host_clock = qemu_new_clock(QEMU_CLOCK_HOST); |
1088 |
|
1089 |
rtc_clock = host_clock; |
1090 |
} |
1091 |
|
1092 |
/* save a timer */
|
1093 |
void qemu_put_timer(QEMUFile *f, QEMUTimer *ts)
|
1094 |
{ |
1095 |
uint64_t expire_time; |
1096 |
|
1097 |
if (qemu_timer_pending(ts)) {
|
1098 |
expire_time = ts->expire_time; |
1099 |
} else {
|
1100 |
expire_time = -1;
|
1101 |
} |
1102 |
qemu_put_be64(f, expire_time); |
1103 |
} |
1104 |
|
1105 |
void qemu_get_timer(QEMUFile *f, QEMUTimer *ts)
|
1106 |
{ |
1107 |
uint64_t expire_time; |
1108 |
|
1109 |
expire_time = qemu_get_be64(f); |
1110 |
if (expire_time != -1) { |
1111 |
qemu_mod_timer(ts, expire_time); |
1112 |
} else {
|
1113 |
qemu_del_timer(ts); |
1114 |
} |
1115 |
} |
1116 |
|
1117 |
static const VMStateDescription vmstate_timers = { |
1118 |
.name = "timer",
|
1119 |
.version_id = 2,
|
1120 |
.minimum_version_id = 1,
|
1121 |
.minimum_version_id_old = 1,
|
1122 |
.fields = (VMStateField []) { |
1123 |
VMSTATE_INT64(cpu_ticks_offset, TimersState), |
1124 |
VMSTATE_INT64(dummy, TimersState), |
1125 |
VMSTATE_INT64_V(cpu_clock_offset, TimersState, 2),
|
1126 |
VMSTATE_END_OF_LIST() |
1127 |
} |
1128 |
}; |
1129 |
|
1130 |
static void qemu_event_increment(void); |
1131 |
|
1132 |
#ifdef _WIN32
|
1133 |
static void CALLBACK host_alarm_handler(UINT uTimerID, UINT uMsg, |
1134 |
DWORD_PTR dwUser, DWORD_PTR dw1, |
1135 |
DWORD_PTR dw2) |
1136 |
#else
|
1137 |
static void host_alarm_handler(int host_signum) |
1138 |
#endif
|
1139 |
{ |
1140 |
#if 0
|
1141 |
#define DISP_FREQ 1000
|
1142 |
{
|
1143 |
static int64_t delta_min = INT64_MAX;
|
1144 |
static int64_t delta_max, delta_cum, last_clock, delta, ti;
|
1145 |
static int count;
|
1146 |
ti = qemu_get_clock(vm_clock);
|
1147 |
if (last_clock != 0) {
|
1148 |
delta = ti - last_clock;
|
1149 |
if (delta < delta_min)
|
1150 |
delta_min = delta;
|
1151 |
if (delta > delta_max)
|
1152 |
delta_max = delta;
|
1153 |
delta_cum += delta;
|
1154 |
if (++count == DISP_FREQ) {
|
1155 |
printf("timer: min=%" PRId64 " us max=%" PRId64 " us avg=%" PRId64 " us avg_freq=%0.3f Hz\n",
|
1156 |
muldiv64(delta_min, 1000000, get_ticks_per_sec()),
|
1157 |
muldiv64(delta_max, 1000000, get_ticks_per_sec()),
|
1158 |
muldiv64(delta_cum, 1000000 / DISP_FREQ, get_ticks_per_sec()),
|
1159 |
(double)get_ticks_per_sec() / ((double)delta_cum / DISP_FREQ));
|
1160 |
count = 0;
|
1161 |
delta_min = INT64_MAX;
|
1162 |
delta_max = 0;
|
1163 |
delta_cum = 0;
|
1164 |
}
|
1165 |
}
|
1166 |
last_clock = ti;
|
1167 |
}
|
1168 |
#endif
|
1169 |
if (alarm_has_dynticks(alarm_timer) ||
|
1170 |
(!use_icount && |
1171 |
qemu_timer_expired(active_timers[QEMU_CLOCK_VIRTUAL], |
1172 |
qemu_get_clock(vm_clock))) || |
1173 |
qemu_timer_expired(active_timers[QEMU_CLOCK_REALTIME], |
1174 |
qemu_get_clock(rt_clock)) || |
1175 |
qemu_timer_expired(active_timers[QEMU_CLOCK_HOST], |
1176 |
qemu_get_clock(host_clock))) { |
1177 |
qemu_event_increment(); |
1178 |
if (alarm_timer) alarm_timer->flags |= ALARM_FLAG_EXPIRED;
|
1179 |
|
1180 |
#ifndef CONFIG_IOTHREAD
|
1181 |
if (next_cpu) {
|
1182 |
/* stop the currently executing cpu because a timer occured */
|
1183 |
cpu_exit(next_cpu); |
1184 |
} |
1185 |
#endif
|
1186 |
timer_alarm_pending = 1;
|
1187 |
qemu_notify_event(); |
1188 |
} |
1189 |
} |
1190 |
|
1191 |
static int64_t qemu_next_deadline(void) |
1192 |
{ |
1193 |
/* To avoid problems with overflow limit this to 2^32. */
|
1194 |
int64_t delta = INT32_MAX; |
1195 |
|
1196 |
if (active_timers[QEMU_CLOCK_VIRTUAL]) {
|
1197 |
delta = active_timers[QEMU_CLOCK_VIRTUAL]->expire_time - |
1198 |
qemu_get_clock(vm_clock); |
1199 |
} |
1200 |
if (active_timers[QEMU_CLOCK_HOST]) {
|
1201 |
int64_t hdelta = active_timers[QEMU_CLOCK_HOST]->expire_time - |
1202 |
qemu_get_clock(host_clock); |
1203 |
if (hdelta < delta)
|
1204 |
delta = hdelta; |
1205 |
} |
1206 |
|
1207 |
if (delta < 0) |
1208 |
delta = 0;
|
1209 |
|
1210 |
return delta;
|
1211 |
} |
1212 |
|
1213 |
#if defined(__linux__)
|
1214 |
static uint64_t qemu_next_deadline_dyntick(void) |
1215 |
{ |
1216 |
int64_t delta; |
1217 |
int64_t rtdelta; |
1218 |
|
1219 |
if (use_icount)
|
1220 |
delta = INT32_MAX; |
1221 |
else
|
1222 |
delta = (qemu_next_deadline() + 999) / 1000; |
1223 |
|
1224 |
if (active_timers[QEMU_CLOCK_REALTIME]) {
|
1225 |
rtdelta = (active_timers[QEMU_CLOCK_REALTIME]->expire_time - |
1226 |
qemu_get_clock(rt_clock))*1000;
|
1227 |
if (rtdelta < delta)
|
1228 |
delta = rtdelta; |
1229 |
} |
1230 |
|
1231 |
if (delta < MIN_TIMER_REARM_US)
|
1232 |
delta = MIN_TIMER_REARM_US; |
1233 |
|
1234 |
return delta;
|
1235 |
} |
1236 |
#endif
|
1237 |
|
1238 |
#ifndef _WIN32
|
1239 |
|
1240 |
/* Sets a specific flag */
|
1241 |
static int fcntl_setfl(int fd, int flag) |
1242 |
{ |
1243 |
int flags;
|
1244 |
|
1245 |
flags = fcntl(fd, F_GETFL); |
1246 |
if (flags == -1) |
1247 |
return -errno;
|
1248 |
|
1249 |
if (fcntl(fd, F_SETFL, flags | flag) == -1) |
1250 |
return -errno;
|
1251 |
|
1252 |
return 0; |
1253 |
} |
1254 |
|
1255 |
#if defined(__linux__)
|
1256 |
|
1257 |
#define RTC_FREQ 1024 |
1258 |
|
1259 |
static void enable_sigio_timer(int fd) |
1260 |
{ |
1261 |
struct sigaction act;
|
1262 |
|
1263 |
/* timer signal */
|
1264 |
sigfillset(&act.sa_mask); |
1265 |
act.sa_flags = 0;
|
1266 |
act.sa_handler = host_alarm_handler; |
1267 |
|
1268 |
sigaction(SIGIO, &act, NULL);
|
1269 |
fcntl_setfl(fd, O_ASYNC); |
1270 |
fcntl(fd, F_SETOWN, getpid()); |
1271 |
} |
1272 |
|
1273 |
static int hpet_start_timer(struct qemu_alarm_timer *t) |
1274 |
{ |
1275 |
struct hpet_info info;
|
1276 |
int r, fd;
|
1277 |
|
1278 |
fd = qemu_open("/dev/hpet", O_RDONLY);
|
1279 |
if (fd < 0) |
1280 |
return -1; |
1281 |
|
1282 |
/* Set frequency */
|
1283 |
r = ioctl(fd, HPET_IRQFREQ, RTC_FREQ); |
1284 |
if (r < 0) { |
1285 |
fprintf(stderr, "Could not configure '/dev/hpet' to have a 1024Hz timer. This is not a fatal\n"
|
1286 |
"error, but for better emulation accuracy type:\n"
|
1287 |
"'echo 1024 > /proc/sys/dev/hpet/max-user-freq' as root.\n");
|
1288 |
goto fail;
|
1289 |
} |
1290 |
|
1291 |
/* Check capabilities */
|
1292 |
r = ioctl(fd, HPET_INFO, &info); |
1293 |
if (r < 0) |
1294 |
goto fail;
|
1295 |
|
1296 |
/* Enable periodic mode */
|
1297 |
r = ioctl(fd, HPET_EPI, 0);
|
1298 |
if (info.hi_flags && (r < 0)) |
1299 |
goto fail;
|
1300 |
|
1301 |
/* Enable interrupt */
|
1302 |
r = ioctl(fd, HPET_IE_ON, 0);
|
1303 |
if (r < 0) |
1304 |
goto fail;
|
1305 |
|
1306 |
enable_sigio_timer(fd); |
1307 |
t->priv = (void *)(long)fd; |
1308 |
|
1309 |
return 0; |
1310 |
fail:
|
1311 |
close(fd); |
1312 |
return -1; |
1313 |
} |
1314 |
|
1315 |
static void hpet_stop_timer(struct qemu_alarm_timer *t) |
1316 |
{ |
1317 |
int fd = (long)t->priv; |
1318 |
|
1319 |
close(fd); |
1320 |
} |
1321 |
|
1322 |
static int rtc_start_timer(struct qemu_alarm_timer *t) |
1323 |
{ |
1324 |
int rtc_fd;
|
1325 |
unsigned long current_rtc_freq = 0; |
1326 |
|
1327 |
TFR(rtc_fd = qemu_open("/dev/rtc", O_RDONLY));
|
1328 |
if (rtc_fd < 0) |
1329 |
return -1; |
1330 |
ioctl(rtc_fd, RTC_IRQP_READ, ¤t_rtc_freq); |
1331 |
if (current_rtc_freq != RTC_FREQ &&
|
1332 |
ioctl(rtc_fd, RTC_IRQP_SET, RTC_FREQ) < 0) {
|
1333 |
fprintf(stderr, "Could not configure '/dev/rtc' to have a 1024 Hz timer. This is not a fatal\n"
|
1334 |
"error, but for better emulation accuracy either use a 2.6 host Linux kernel or\n"
|
1335 |
"type 'echo 1024 > /proc/sys/dev/rtc/max-user-freq' as root.\n");
|
1336 |
goto fail;
|
1337 |
} |
1338 |
if (ioctl(rtc_fd, RTC_PIE_ON, 0) < 0) { |
1339 |
fail:
|
1340 |
close(rtc_fd); |
1341 |
return -1; |
1342 |
} |
1343 |
|
1344 |
enable_sigio_timer(rtc_fd); |
1345 |
|
1346 |
t->priv = (void *)(long)rtc_fd; |
1347 |
|
1348 |
return 0; |
1349 |
} |
1350 |
|
1351 |
static void rtc_stop_timer(struct qemu_alarm_timer *t) |
1352 |
{ |
1353 |
int rtc_fd = (long)t->priv; |
1354 |
|
1355 |
close(rtc_fd); |
1356 |
} |
1357 |
|
1358 |
static int dynticks_start_timer(struct qemu_alarm_timer *t) |
1359 |
{ |
1360 |
struct sigevent ev;
|
1361 |
timer_t host_timer; |
1362 |
struct sigaction act;
|
1363 |
|
1364 |
sigfillset(&act.sa_mask); |
1365 |
act.sa_flags = 0;
|
1366 |
act.sa_handler = host_alarm_handler; |
1367 |
|
1368 |
sigaction(SIGALRM, &act, NULL);
|
1369 |
|
1370 |
/*
|
1371 |
* Initialize ev struct to 0 to avoid valgrind complaining
|
1372 |
* about uninitialized data in timer_create call
|
1373 |
*/
|
1374 |
memset(&ev, 0, sizeof(ev)); |
1375 |
ev.sigev_value.sival_int = 0;
|
1376 |
ev.sigev_notify = SIGEV_SIGNAL; |
1377 |
ev.sigev_signo = SIGALRM; |
1378 |
|
1379 |
if (timer_create(CLOCK_REALTIME, &ev, &host_timer)) {
|
1380 |
perror("timer_create");
|
1381 |
|
1382 |
/* disable dynticks */
|
1383 |
fprintf(stderr, "Dynamic Ticks disabled\n");
|
1384 |
|
1385 |
return -1; |
1386 |
} |
1387 |
|
1388 |
t->priv = (void *)(long)host_timer; |
1389 |
|
1390 |
return 0; |
1391 |
} |
1392 |
|
1393 |
static void dynticks_stop_timer(struct qemu_alarm_timer *t) |
1394 |
{ |
1395 |
timer_t host_timer = (timer_t)(long)t->priv;
|
1396 |
|
1397 |
timer_delete(host_timer); |
1398 |
} |
1399 |
|
1400 |
static void dynticks_rearm_timer(struct qemu_alarm_timer *t) |
1401 |
{ |
1402 |
timer_t host_timer = (timer_t)(long)t->priv;
|
1403 |
struct itimerspec timeout;
|
1404 |
int64_t nearest_delta_us = INT64_MAX; |
1405 |
int64_t current_us; |
1406 |
|
1407 |
if (!active_timers[QEMU_CLOCK_REALTIME] &&
|
1408 |
!active_timers[QEMU_CLOCK_VIRTUAL] && |
1409 |
!active_timers[QEMU_CLOCK_HOST]) |
1410 |
return;
|
1411 |
|
1412 |
nearest_delta_us = qemu_next_deadline_dyntick(); |
1413 |
|
1414 |
/* check whether a timer is already running */
|
1415 |
if (timer_gettime(host_timer, &timeout)) {
|
1416 |
perror("gettime");
|
1417 |
fprintf(stderr, "Internal timer error: aborting\n");
|
1418 |
exit(1);
|
1419 |
} |
1420 |
current_us = timeout.it_value.tv_sec * 1000000 + timeout.it_value.tv_nsec/1000; |
1421 |
if (current_us && current_us <= nearest_delta_us)
|
1422 |
return;
|
1423 |
|
1424 |
timeout.it_interval.tv_sec = 0;
|
1425 |
timeout.it_interval.tv_nsec = 0; /* 0 for one-shot timer */ |
1426 |
timeout.it_value.tv_sec = nearest_delta_us / 1000000;
|
1427 |
timeout.it_value.tv_nsec = (nearest_delta_us % 1000000) * 1000; |
1428 |
if (timer_settime(host_timer, 0 /* RELATIVE */, &timeout, NULL)) { |
1429 |
perror("settime");
|
1430 |
fprintf(stderr, "Internal timer error: aborting\n");
|
1431 |
exit(1);
|
1432 |
} |
1433 |
} |
1434 |
|
1435 |
#endif /* defined(__linux__) */ |
1436 |
|
1437 |
static int unix_start_timer(struct qemu_alarm_timer *t) |
1438 |
{ |
1439 |
struct sigaction act;
|
1440 |
struct itimerval itv;
|
1441 |
int err;
|
1442 |
|
1443 |
/* timer signal */
|
1444 |
sigfillset(&act.sa_mask); |
1445 |
act.sa_flags = 0;
|
1446 |
act.sa_handler = host_alarm_handler; |
1447 |
|
1448 |
sigaction(SIGALRM, &act, NULL);
|
1449 |
|
1450 |
itv.it_interval.tv_sec = 0;
|
1451 |
/* for i386 kernel 2.6 to get 1 ms */
|
1452 |
itv.it_interval.tv_usec = 999;
|
1453 |
itv.it_value.tv_sec = 0;
|
1454 |
itv.it_value.tv_usec = 10 * 1000; |
1455 |
|
1456 |
err = setitimer(ITIMER_REAL, &itv, NULL);
|
1457 |
if (err)
|
1458 |
return -1; |
1459 |
|
1460 |
return 0; |
1461 |
} |
1462 |
|
1463 |
static void unix_stop_timer(struct qemu_alarm_timer *t) |
1464 |
{ |
1465 |
struct itimerval itv;
|
1466 |
|
1467 |
memset(&itv, 0, sizeof(itv)); |
1468 |
setitimer(ITIMER_REAL, &itv, NULL);
|
1469 |
} |
1470 |
|
1471 |
#endif /* !defined(_WIN32) */ |
1472 |
|
1473 |
|
1474 |
#ifdef _WIN32
|
1475 |
|
1476 |
static int win32_start_timer(struct qemu_alarm_timer *t) |
1477 |
{ |
1478 |
TIMECAPS tc; |
1479 |
struct qemu_alarm_win32 *data = t->priv;
|
1480 |
UINT flags; |
1481 |
|
1482 |
memset(&tc, 0, sizeof(tc)); |
1483 |
timeGetDevCaps(&tc, sizeof(tc));
|
1484 |
|
1485 |
if (data->period < tc.wPeriodMin)
|
1486 |
data->period = tc.wPeriodMin; |
1487 |
|
1488 |
timeBeginPeriod(data->period); |
1489 |
|
1490 |
flags = TIME_CALLBACK_FUNCTION; |
1491 |
if (alarm_has_dynticks(t))
|
1492 |
flags |= TIME_ONESHOT; |
1493 |
else
|
1494 |
flags |= TIME_PERIODIC; |
1495 |
|
1496 |
data->timerId = timeSetEvent(1, // interval (ms) |
1497 |
data->period, // resolution
|
1498 |
host_alarm_handler, // function
|
1499 |
(DWORD)t, // parameter
|
1500 |
flags); |
1501 |
|
1502 |
if (!data->timerId) {
|
1503 |
fprintf(stderr, "Failed to initialize win32 alarm timer: %ld\n",
|
1504 |
GetLastError()); |
1505 |
timeEndPeriod(data->period); |
1506 |
return -1; |
1507 |
} |
1508 |
|
1509 |
return 0; |
1510 |
} |
1511 |
|
1512 |
static void win32_stop_timer(struct qemu_alarm_timer *t) |
1513 |
{ |
1514 |
struct qemu_alarm_win32 *data = t->priv;
|
1515 |
|
1516 |
timeKillEvent(data->timerId); |
1517 |
timeEndPeriod(data->period); |
1518 |
} |
1519 |
|
1520 |
static void win32_rearm_timer(struct qemu_alarm_timer *t) |
1521 |
{ |
1522 |
struct qemu_alarm_win32 *data = t->priv;
|
1523 |
|
1524 |
if (!active_timers[QEMU_CLOCK_REALTIME] &&
|
1525 |
!active_timers[QEMU_CLOCK_VIRTUAL] && |
1526 |
!active_timers[QEMU_CLOCK_HOST]) |
1527 |
return;
|
1528 |
|
1529 |
timeKillEvent(data->timerId); |
1530 |
|
1531 |
data->timerId = timeSetEvent(1,
|
1532 |
data->period, |
1533 |
host_alarm_handler, |
1534 |
(DWORD)t, |
1535 |
TIME_ONESHOT | TIME_PERIODIC); |
1536 |
|
1537 |
if (!data->timerId) {
|
1538 |
fprintf(stderr, "Failed to re-arm win32 alarm timer %ld\n",
|
1539 |
GetLastError()); |
1540 |
|
1541 |
timeEndPeriod(data->period); |
1542 |
exit(1);
|
1543 |
} |
1544 |
} |
1545 |
|
1546 |
#endif /* _WIN32 */ |
1547 |
|
1548 |
static int init_timer_alarm(void) |
1549 |
{ |
1550 |
struct qemu_alarm_timer *t = NULL; |
1551 |
int i, err = -1; |
1552 |
|
1553 |
for (i = 0; alarm_timers[i].name; i++) { |
1554 |
t = &alarm_timers[i]; |
1555 |
|
1556 |
err = t->start(t); |
1557 |
if (!err)
|
1558 |
break;
|
1559 |
} |
1560 |
|
1561 |
if (err) {
|
1562 |
err = -ENOENT; |
1563 |
goto fail;
|
1564 |
} |
1565 |
|
1566 |
alarm_timer = t; |
1567 |
|
1568 |
return 0; |
1569 |
|
1570 |
fail:
|
1571 |
return err;
|
1572 |
} |
1573 |
|
1574 |
static void quit_timers(void) |
1575 |
{ |
1576 |
alarm_timer->stop(alarm_timer); |
1577 |
alarm_timer = NULL;
|
1578 |
} |
1579 |
|
1580 |
/***********************************************************/
|
1581 |
/* host time/date access */
|
1582 |
void qemu_get_timedate(struct tm *tm, int offset) |
1583 |
{ |
1584 |
time_t ti; |
1585 |
struct tm *ret;
|
1586 |
|
1587 |
time(&ti); |
1588 |
ti += offset; |
1589 |
if (rtc_date_offset == -1) { |
1590 |
if (rtc_utc)
|
1591 |
ret = gmtime(&ti); |
1592 |
else
|
1593 |
ret = localtime(&ti); |
1594 |
} else {
|
1595 |
ti -= rtc_date_offset; |
1596 |
ret = gmtime(&ti); |
1597 |
} |
1598 |
|
1599 |
memcpy(tm, ret, sizeof(struct tm)); |
1600 |
} |
1601 |
|
1602 |
int qemu_timedate_diff(struct tm *tm) |
1603 |
{ |
1604 |
time_t seconds; |
1605 |
|
1606 |
if (rtc_date_offset == -1) |
1607 |
if (rtc_utc)
|
1608 |
seconds = mktimegm(tm); |
1609 |
else
|
1610 |
seconds = mktime(tm); |
1611 |
else
|
1612 |
seconds = mktimegm(tm) + rtc_date_offset; |
1613 |
|
1614 |
return seconds - time(NULL); |
1615 |
} |
1616 |
|
1617 |
static void configure_rtc_date_offset(const char *startdate, int legacy) |
1618 |
{ |
1619 |
time_t rtc_start_date; |
1620 |
struct tm tm;
|
1621 |
|
1622 |
if (!strcmp(startdate, "now") && legacy) { |
1623 |
rtc_date_offset = -1;
|
1624 |
} else {
|
1625 |
if (sscanf(startdate, "%d-%d-%dT%d:%d:%d", |
1626 |
&tm.tm_year, |
1627 |
&tm.tm_mon, |
1628 |
&tm.tm_mday, |
1629 |
&tm.tm_hour, |
1630 |
&tm.tm_min, |
1631 |
&tm.tm_sec) == 6) {
|
1632 |
/* OK */
|
1633 |
} else if (sscanf(startdate, "%d-%d-%d", |
1634 |
&tm.tm_year, |
1635 |
&tm.tm_mon, |
1636 |
&tm.tm_mday) == 3) {
|
1637 |
tm.tm_hour = 0;
|
1638 |
tm.tm_min = 0;
|
1639 |
tm.tm_sec = 0;
|
1640 |
} else {
|
1641 |
goto date_fail;
|
1642 |
} |
1643 |
tm.tm_year -= 1900;
|
1644 |
tm.tm_mon--; |
1645 |
rtc_start_date = mktimegm(&tm); |
1646 |
if (rtc_start_date == -1) { |
1647 |
date_fail:
|
1648 |
fprintf(stderr, "Invalid date format. Valid formats are:\n"
|
1649 |
"'2006-06-17T16:01:21' or '2006-06-17'\n");
|
1650 |
exit(1);
|
1651 |
} |
1652 |
rtc_date_offset = time(NULL) - rtc_start_date;
|
1653 |
} |
1654 |
} |
1655 |
|
1656 |
static void configure_rtc(QemuOpts *opts) |
1657 |
{ |
1658 |
const char *value; |
1659 |
|
1660 |
value = qemu_opt_get(opts, "base");
|
1661 |
if (value) {
|
1662 |
if (!strcmp(value, "utc")) { |
1663 |
rtc_utc = 1;
|
1664 |
} else if (!strcmp(value, "localtime")) { |
1665 |
rtc_utc = 0;
|
1666 |
} else {
|
1667 |
configure_rtc_date_offset(value, 0);
|
1668 |
} |
1669 |
} |
1670 |
value = qemu_opt_get(opts, "clock");
|
1671 |
if (value) {
|
1672 |
if (!strcmp(value, "host")) { |
1673 |
rtc_clock = host_clock; |
1674 |
} else if (!strcmp(value, "vm")) { |
1675 |
rtc_clock = vm_clock; |
1676 |
} else {
|
1677 |
fprintf(stderr, "qemu: invalid option value '%s'\n", value);
|
1678 |
exit(1);
|
1679 |
} |
1680 |
} |
1681 |
#ifdef CONFIG_TARGET_I386
|
1682 |
value = qemu_opt_get(opts, "driftfix");
|
1683 |
if (value) {
|
1684 |
if (!strcmp(buf, "slew")) { |
1685 |
rtc_td_hack = 1;
|
1686 |
} else if (!strcmp(buf, "none")) { |
1687 |
rtc_td_hack = 0;
|
1688 |
} else {
|
1689 |
fprintf(stderr, "qemu: invalid option value '%s'\n", value);
|
1690 |
exit(1);
|
1691 |
} |
1692 |
} |
1693 |
#endif
|
1694 |
} |
1695 |
|
1696 |
#ifdef _WIN32
|
1697 |
static void socket_cleanup(void) |
1698 |
{ |
1699 |
WSACleanup(); |
1700 |
} |
1701 |
|
1702 |
static int socket_init(void) |
1703 |
{ |
1704 |
WSADATA Data; |
1705 |
int ret, err;
|
1706 |
|
1707 |
ret = WSAStartup(MAKEWORD(2,2), &Data); |
1708 |
if (ret != 0) { |
1709 |
err = WSAGetLastError(); |
1710 |
fprintf(stderr, "WSAStartup: %d\n", err);
|
1711 |
return -1; |
1712 |
} |
1713 |
atexit(socket_cleanup); |
1714 |
return 0; |
1715 |
} |
1716 |
#endif
|
1717 |
|
1718 |
/***********************************************************/
|
1719 |
/* Bluetooth support */
|
1720 |
static int nb_hcis; |
1721 |
static int cur_hci; |
1722 |
static struct HCIInfo *hci_table[MAX_NICS]; |
1723 |
|
1724 |
static struct bt_vlan_s { |
1725 |
struct bt_scatternet_s net;
|
1726 |
int id;
|
1727 |
struct bt_vlan_s *next;
|
1728 |
} *first_bt_vlan; |
1729 |
|
1730 |
/* find or alloc a new bluetooth "VLAN" */
|
1731 |
static struct bt_scatternet_s *qemu_find_bt_vlan(int id) |
1732 |
{ |
1733 |
struct bt_vlan_s **pvlan, *vlan;
|
1734 |
for (vlan = first_bt_vlan; vlan != NULL; vlan = vlan->next) { |
1735 |
if (vlan->id == id)
|
1736 |
return &vlan->net;
|
1737 |
} |
1738 |
vlan = qemu_mallocz(sizeof(struct bt_vlan_s)); |
1739 |
vlan->id = id; |
1740 |
pvlan = &first_bt_vlan; |
1741 |
while (*pvlan != NULL) |
1742 |
pvlan = &(*pvlan)->next; |
1743 |
*pvlan = vlan; |
1744 |
return &vlan->net;
|
1745 |
} |
1746 |
|
1747 |
static void null_hci_send(struct HCIInfo *hci, const uint8_t *data, int len) |
1748 |
{ |
1749 |
} |
1750 |
|
1751 |
static int null_hci_addr_set(struct HCIInfo *hci, const uint8_t *bd_addr) |
1752 |
{ |
1753 |
return -ENOTSUP;
|
1754 |
} |
1755 |
|
1756 |
static struct HCIInfo null_hci = { |
1757 |
.cmd_send = null_hci_send, |
1758 |
.sco_send = null_hci_send, |
1759 |
.acl_send = null_hci_send, |
1760 |
.bdaddr_set = null_hci_addr_set, |
1761 |
}; |
1762 |
|
1763 |
struct HCIInfo *qemu_next_hci(void) |
1764 |
{ |
1765 |
if (cur_hci == nb_hcis)
|
1766 |
return &null_hci;
|
1767 |
|
1768 |
return hci_table[cur_hci++];
|
1769 |
} |
1770 |
|
1771 |
static struct HCIInfo *hci_init(const char *str) |
1772 |
{ |
1773 |
char *endp;
|
1774 |
struct bt_scatternet_s *vlan = 0; |
1775 |
|
1776 |
if (!strcmp(str, "null")) |
1777 |
/* null */
|
1778 |
return &null_hci;
|
1779 |
else if (!strncmp(str, "host", 4) && (str[4] == '\0' || str[4] == ':')) |
1780 |
/* host[:hciN] */
|
1781 |
return bt_host_hci(str[4] ? str + 5 : "hci0"); |
1782 |
else if (!strncmp(str, "hci", 3)) { |
1783 |
/* hci[,vlan=n] */
|
1784 |
if (str[3]) { |
1785 |
if (!strncmp(str + 3, ",vlan=", 6)) { |
1786 |
vlan = qemu_find_bt_vlan(strtol(str + 9, &endp, 0)); |
1787 |
if (*endp)
|
1788 |
vlan = 0;
|
1789 |
} |
1790 |
} else
|
1791 |
vlan = qemu_find_bt_vlan(0);
|
1792 |
if (vlan)
|
1793 |
return bt_new_hci(vlan);
|
1794 |
} |
1795 |
|
1796 |
fprintf(stderr, "qemu: Unknown bluetooth HCI `%s'.\n", str);
|
1797 |
|
1798 |
return 0; |
1799 |
} |
1800 |
|
1801 |
static int bt_hci_parse(const char *str) |
1802 |
{ |
1803 |
struct HCIInfo *hci;
|
1804 |
bdaddr_t bdaddr; |
1805 |
|
1806 |
if (nb_hcis >= MAX_NICS) {
|
1807 |
fprintf(stderr, "qemu: Too many bluetooth HCIs (max %i).\n", MAX_NICS);
|
1808 |
return -1; |
1809 |
} |
1810 |
|
1811 |
hci = hci_init(str); |
1812 |
if (!hci)
|
1813 |
return -1; |
1814 |
|
1815 |
bdaddr.b[0] = 0x52; |
1816 |
bdaddr.b[1] = 0x54; |
1817 |
bdaddr.b[2] = 0x00; |
1818 |
bdaddr.b[3] = 0x12; |
1819 |
bdaddr.b[4] = 0x34; |
1820 |
bdaddr.b[5] = 0x56 + nb_hcis; |
1821 |
hci->bdaddr_set(hci, bdaddr.b); |
1822 |
|
1823 |
hci_table[nb_hcis++] = hci; |
1824 |
|
1825 |
return 0; |
1826 |
} |
1827 |
|
1828 |
static void bt_vhci_add(int vlan_id) |
1829 |
{ |
1830 |
struct bt_scatternet_s *vlan = qemu_find_bt_vlan(vlan_id);
|
1831 |
|
1832 |
if (!vlan->slave)
|
1833 |
fprintf(stderr, "qemu: warning: adding a VHCI to "
|
1834 |
"an empty scatternet %i\n", vlan_id);
|
1835 |
|
1836 |
bt_vhci_init(bt_new_hci(vlan)); |
1837 |
} |
1838 |
|
1839 |
static struct bt_device_s *bt_device_add(const char *opt) |
1840 |
{ |
1841 |
struct bt_scatternet_s *vlan;
|
1842 |
int vlan_id = 0; |
1843 |
char *endp = strstr(opt, ",vlan="); |
1844 |
int len = (endp ? endp - opt : strlen(opt)) + 1; |
1845 |
char devname[10]; |
1846 |
|
1847 |
pstrcpy(devname, MIN(sizeof(devname), len), opt);
|
1848 |
|
1849 |
if (endp) {
|
1850 |
vlan_id = strtol(endp + 6, &endp, 0); |
1851 |
if (*endp) {
|
1852 |
fprintf(stderr, "qemu: unrecognised bluetooth vlan Id\n");
|
1853 |
return 0; |
1854 |
} |
1855 |
} |
1856 |
|
1857 |
vlan = qemu_find_bt_vlan(vlan_id); |
1858 |
|
1859 |
if (!vlan->slave)
|
1860 |
fprintf(stderr, "qemu: warning: adding a slave device to "
|
1861 |
"an empty scatternet %i\n", vlan_id);
|
1862 |
|
1863 |
if (!strcmp(devname, "keyboard")) |
1864 |
return bt_keyboard_init(vlan);
|
1865 |
|
1866 |
fprintf(stderr, "qemu: unsupported bluetooth device `%s'\n", devname);
|
1867 |
return 0; |
1868 |
} |
1869 |
|
1870 |
static int bt_parse(const char *opt) |
1871 |
{ |
1872 |
const char *endp, *p; |
1873 |
int vlan;
|
1874 |
|
1875 |
if (strstart(opt, "hci", &endp)) { |
1876 |
if (!*endp || *endp == ',') { |
1877 |
if (*endp)
|
1878 |
if (!strstart(endp, ",vlan=", 0)) |
1879 |
opt = endp + 1;
|
1880 |
|
1881 |
return bt_hci_parse(opt);
|
1882 |
} |
1883 |
} else if (strstart(opt, "vhci", &endp)) { |
1884 |
if (!*endp || *endp == ',') { |
1885 |
if (*endp) {
|
1886 |
if (strstart(endp, ",vlan=", &p)) { |
1887 |
vlan = strtol(p, (char **) &endp, 0); |
1888 |
if (*endp) {
|
1889 |
fprintf(stderr, "qemu: bad scatternet '%s'\n", p);
|
1890 |
return 1; |
1891 |
} |
1892 |
} else {
|
1893 |
fprintf(stderr, "qemu: bad parameter '%s'\n", endp + 1); |
1894 |
return 1; |
1895 |
} |
1896 |
} else
|
1897 |
vlan = 0;
|
1898 |
|
1899 |
bt_vhci_add(vlan); |
1900 |
return 0; |
1901 |
} |
1902 |
} else if (strstart(opt, "device:", &endp)) |
1903 |
return !bt_device_add(endp);
|
1904 |
|
1905 |
fprintf(stderr, "qemu: bad bluetooth parameter '%s'\n", opt);
|
1906 |
return 1; |
1907 |
} |
1908 |
|
1909 |
/***********************************************************/
|
1910 |
/* QEMU Block devices */
|
1911 |
|
1912 |
#define HD_ALIAS "index=%d,media=disk" |
1913 |
#define CDROM_ALIAS "index=2,media=cdrom" |
1914 |
#define FD_ALIAS "index=%d,if=floppy" |
1915 |
#define PFLASH_ALIAS "if=pflash" |
1916 |
#define MTD_ALIAS "if=mtd" |
1917 |
#define SD_ALIAS "index=0,if=sd" |
1918 |
|
1919 |
QemuOpts *drive_add(const char *file, const char *fmt, ...) |
1920 |
{ |
1921 |
va_list ap; |
1922 |
char optstr[1024]; |
1923 |
QemuOpts *opts; |
1924 |
|
1925 |
va_start(ap, fmt); |
1926 |
vsnprintf(optstr, sizeof(optstr), fmt, ap);
|
1927 |
va_end(ap); |
1928 |
|
1929 |
opts = qemu_opts_parse(&qemu_drive_opts, optstr, NULL);
|
1930 |
if (!opts) {
|
1931 |
fprintf(stderr, "%s: huh? duplicate? (%s)\n",
|
1932 |
__FUNCTION__, optstr); |
1933 |
return NULL; |
1934 |
} |
1935 |
if (file)
|
1936 |
qemu_opt_set(opts, "file", file);
|
1937 |
return opts;
|
1938 |
} |
1939 |
|
1940 |
DriveInfo *drive_get(BlockInterfaceType type, int bus, int unit) |
1941 |
{ |
1942 |
DriveInfo *dinfo; |
1943 |
|
1944 |
/* seek interface, bus and unit */
|
1945 |
|
1946 |
QTAILQ_FOREACH(dinfo, &drives, next) { |
1947 |
if (dinfo->type == type &&
|
1948 |
dinfo->bus == bus && |
1949 |
dinfo->unit == unit) |
1950 |
return dinfo;
|
1951 |
} |
1952 |
|
1953 |
return NULL; |
1954 |
} |
1955 |
|
1956 |
DriveInfo *drive_get_by_id(const char *id) |
1957 |
{ |
1958 |
DriveInfo *dinfo; |
1959 |
|
1960 |
QTAILQ_FOREACH(dinfo, &drives, next) { |
1961 |
if (strcmp(id, dinfo->id))
|
1962 |
continue;
|
1963 |
return dinfo;
|
1964 |
} |
1965 |
return NULL; |
1966 |
} |
1967 |
|
1968 |
int drive_get_max_bus(BlockInterfaceType type)
|
1969 |
{ |
1970 |
int max_bus;
|
1971 |
DriveInfo *dinfo; |
1972 |
|
1973 |
max_bus = -1;
|
1974 |
QTAILQ_FOREACH(dinfo, &drives, next) { |
1975 |
if(dinfo->type == type &&
|
1976 |
dinfo->bus > max_bus) |
1977 |
max_bus = dinfo->bus; |
1978 |
} |
1979 |
return max_bus;
|
1980 |
} |
1981 |
|
1982 |
const char *drive_get_serial(BlockDriverState *bdrv) |
1983 |
{ |
1984 |
DriveInfo *dinfo; |
1985 |
|
1986 |
QTAILQ_FOREACH(dinfo, &drives, next) { |
1987 |
if (dinfo->bdrv == bdrv)
|
1988 |
return dinfo->serial;
|
1989 |
} |
1990 |
|
1991 |
return "\0"; |
1992 |
} |
1993 |
|
1994 |
BlockInterfaceErrorAction drive_get_on_error( |
1995 |
BlockDriverState *bdrv, int is_read)
|
1996 |
{ |
1997 |
DriveInfo *dinfo; |
1998 |
|
1999 |
if (is_read) {
|
2000 |
return BLOCK_ERR_REPORT;
|
2001 |
} |
2002 |
|
2003 |
QTAILQ_FOREACH(dinfo, &drives, next) { |
2004 |
if (dinfo->bdrv == bdrv)
|
2005 |
return is_read ? dinfo->on_read_error : dinfo->on_write_error;
|
2006 |
} |
2007 |
|
2008 |
return is_read ? BLOCK_ERR_REPORT : BLOCK_ERR_STOP_ENOSPC;
|
2009 |
} |
2010 |
|
2011 |
static void bdrv_format_print(void *opaque, const char *name) |
2012 |
{ |
2013 |
fprintf(stderr, " %s", name);
|
2014 |
} |
2015 |
|
2016 |
void drive_uninit(DriveInfo *dinfo)
|
2017 |
{ |
2018 |
qemu_opts_del(dinfo->opts); |
2019 |
bdrv_delete(dinfo->bdrv); |
2020 |
QTAILQ_REMOVE(&drives, dinfo, next); |
2021 |
qemu_free(dinfo); |
2022 |
} |
2023 |
|
2024 |
static int parse_block_error_action(const char *buf, int is_read) |
2025 |
{ |
2026 |
if (!strcmp(buf, "ignore")) { |
2027 |
return BLOCK_ERR_IGNORE;
|
2028 |
} else if (!is_read && !strcmp(buf, "enospc")) { |
2029 |
return BLOCK_ERR_STOP_ENOSPC;
|
2030 |
} else if (!strcmp(buf, "stop")) { |
2031 |
return BLOCK_ERR_STOP_ANY;
|
2032 |
} else if (!strcmp(buf, "report")) { |
2033 |
return BLOCK_ERR_REPORT;
|
2034 |
} else {
|
2035 |
fprintf(stderr, "qemu: '%s' invalid %s error action\n",
|
2036 |
buf, is_read ? "read" : "write"); |
2037 |
return -1; |
2038 |
} |
2039 |
} |
2040 |
|
2041 |
DriveInfo *drive_init(QemuOpts *opts, void *opaque,
|
2042 |
int *fatal_error)
|
2043 |
{ |
2044 |
const char *buf; |
2045 |
const char *file = NULL; |
2046 |
char devname[128]; |
2047 |
const char *serial; |
2048 |
const char *mediastr = ""; |
2049 |
BlockInterfaceType type; |
2050 |
enum { MEDIA_DISK, MEDIA_CDROM } media;
|
2051 |
int bus_id, unit_id;
|
2052 |
int cyls, heads, secs, translation;
|
2053 |
BlockDriver *drv = NULL;
|
2054 |
QEMUMachine *machine = opaque; |
2055 |
int max_devs;
|
2056 |
int index;
|
2057 |
int cache;
|
2058 |
int aio = 0; |
2059 |
int ro = 0; |
2060 |
int bdrv_flags;
|
2061 |
int on_read_error, on_write_error;
|
2062 |
const char *devaddr; |
2063 |
DriveInfo *dinfo; |
2064 |
int snapshot = 0; |
2065 |
|
2066 |
*fatal_error = 1;
|
2067 |
|
2068 |
translation = BIOS_ATA_TRANSLATION_AUTO; |
2069 |
cache = 1;
|
2070 |
|
2071 |
if (machine && machine->use_scsi) {
|
2072 |
type = IF_SCSI; |
2073 |
max_devs = MAX_SCSI_DEVS; |
2074 |
pstrcpy(devname, sizeof(devname), "scsi"); |
2075 |
} else {
|
2076 |
type = IF_IDE; |
2077 |
max_devs = MAX_IDE_DEVS; |
2078 |
pstrcpy(devname, sizeof(devname), "ide"); |
2079 |
} |
2080 |
media = MEDIA_DISK; |
2081 |
|
2082 |
/* extract parameters */
|
2083 |
bus_id = qemu_opt_get_number(opts, "bus", 0); |
2084 |
unit_id = qemu_opt_get_number(opts, "unit", -1); |
2085 |
index = qemu_opt_get_number(opts, "index", -1); |
2086 |
|
2087 |
cyls = qemu_opt_get_number(opts, "cyls", 0); |
2088 |
heads = qemu_opt_get_number(opts, "heads", 0); |
2089 |
secs = qemu_opt_get_number(opts, "secs", 0); |
2090 |
|
2091 |
snapshot = qemu_opt_get_bool(opts, "snapshot", 0); |
2092 |
ro = qemu_opt_get_bool(opts, "readonly", 0); |
2093 |
|
2094 |
file = qemu_opt_get(opts, "file");
|
2095 |
serial = qemu_opt_get(opts, "serial");
|
2096 |
|
2097 |
if ((buf = qemu_opt_get(opts, "if")) != NULL) { |
2098 |
pstrcpy(devname, sizeof(devname), buf);
|
2099 |
if (!strcmp(buf, "ide")) { |
2100 |
type = IF_IDE; |
2101 |
max_devs = MAX_IDE_DEVS; |
2102 |
} else if (!strcmp(buf, "scsi")) { |
2103 |
type = IF_SCSI; |
2104 |
max_devs = MAX_SCSI_DEVS; |
2105 |
} else if (!strcmp(buf, "floppy")) { |
2106 |
type = IF_FLOPPY; |
2107 |
max_devs = 0;
|
2108 |
} else if (!strcmp(buf, "pflash")) { |
2109 |
type = IF_PFLASH; |
2110 |
max_devs = 0;
|
2111 |
} else if (!strcmp(buf, "mtd")) { |
2112 |
type = IF_MTD; |
2113 |
max_devs = 0;
|
2114 |
} else if (!strcmp(buf, "sd")) { |
2115 |
type = IF_SD; |
2116 |
max_devs = 0;
|
2117 |
} else if (!strcmp(buf, "virtio")) { |
2118 |
type = IF_VIRTIO; |
2119 |
max_devs = 0;
|
2120 |
} else if (!strcmp(buf, "xen")) { |
2121 |
type = IF_XEN; |
2122 |
max_devs = 0;
|
2123 |
} else if (!strcmp(buf, "none")) { |
2124 |
type = IF_NONE; |
2125 |
max_devs = 0;
|
2126 |
} else {
|
2127 |
fprintf(stderr, "qemu: unsupported bus type '%s'\n", buf);
|
2128 |
return NULL; |
2129 |
} |
2130 |
} |
2131 |
|
2132 |
if (cyls || heads || secs) {
|
2133 |
if (cyls < 1 || (type == IF_IDE && cyls > 16383)) { |
2134 |
fprintf(stderr, "qemu: '%s' invalid physical cyls number\n", buf);
|
2135 |
return NULL; |
2136 |
} |
2137 |
if (heads < 1 || (type == IF_IDE && heads > 16)) { |
2138 |
fprintf(stderr, "qemu: '%s' invalid physical heads number\n", buf);
|
2139 |
return NULL; |
2140 |
} |
2141 |
if (secs < 1 || (type == IF_IDE && secs > 63)) { |
2142 |
fprintf(stderr, "qemu: '%s' invalid physical secs number\n", buf);
|
2143 |
return NULL; |
2144 |
} |
2145 |
} |
2146 |
|
2147 |
if ((buf = qemu_opt_get(opts, "trans")) != NULL) { |
2148 |
if (!cyls) {
|
2149 |
fprintf(stderr, |
2150 |
"qemu: '%s' trans must be used with cyls,heads and secs\n",
|
2151 |
buf); |
2152 |
return NULL; |
2153 |
} |
2154 |
if (!strcmp(buf, "none")) |
2155 |
translation = BIOS_ATA_TRANSLATION_NONE; |
2156 |
else if (!strcmp(buf, "lba")) |
2157 |
translation = BIOS_ATA_TRANSLATION_LBA; |
2158 |
else if (!strcmp(buf, "auto")) |
2159 |
translation = BIOS_ATA_TRANSLATION_AUTO; |
2160 |
else {
|
2161 |
fprintf(stderr, "qemu: '%s' invalid translation type\n", buf);
|
2162 |
return NULL; |
2163 |
} |
2164 |
} |
2165 |
|
2166 |
if ((buf = qemu_opt_get(opts, "media")) != NULL) { |
2167 |
if (!strcmp(buf, "disk")) { |
2168 |
media = MEDIA_DISK; |
2169 |
} else if (!strcmp(buf, "cdrom")) { |
2170 |
if (cyls || secs || heads) {
|
2171 |
fprintf(stderr, |
2172 |
"qemu: '%s' invalid physical CHS format\n", buf);
|
2173 |
return NULL; |
2174 |
} |
2175 |
media = MEDIA_CDROM; |
2176 |
} else {
|
2177 |
fprintf(stderr, "qemu: '%s' invalid media\n", buf);
|
2178 |
return NULL; |
2179 |
} |
2180 |
} |
2181 |
|
2182 |
if ((buf = qemu_opt_get(opts, "cache")) != NULL) { |
2183 |
if (!strcmp(buf, "off") || !strcmp(buf, "none")) |
2184 |
cache = 0;
|
2185 |
else if (!strcmp(buf, "writethrough")) |
2186 |
cache = 1;
|
2187 |
else if (!strcmp(buf, "writeback")) |
2188 |
cache = 2;
|
2189 |
else {
|
2190 |
fprintf(stderr, "qemu: invalid cache option\n");
|
2191 |
return NULL; |
2192 |
} |
2193 |
} |
2194 |
|
2195 |
#ifdef CONFIG_LINUX_AIO
|
2196 |
if ((buf = qemu_opt_get(opts, "aio")) != NULL) { |
2197 |
if (!strcmp(buf, "threads")) |
2198 |
aio = 0;
|
2199 |
else if (!strcmp(buf, "native")) |
2200 |
aio = 1;
|
2201 |
else {
|
2202 |
fprintf(stderr, "qemu: invalid aio option\n");
|
2203 |
return NULL; |
2204 |
} |
2205 |
} |
2206 |
#endif
|
2207 |
|
2208 |
if ((buf = qemu_opt_get(opts, "format")) != NULL) { |
2209 |
if (strcmp(buf, "?") == 0) { |
2210 |
fprintf(stderr, "qemu: Supported formats:");
|
2211 |
bdrv_iterate_format(bdrv_format_print, NULL);
|
2212 |
fprintf(stderr, "\n");
|
2213 |
return NULL; |
2214 |
} |
2215 |
drv = bdrv_find_whitelisted_format(buf); |
2216 |
if (!drv) {
|
2217 |
fprintf(stderr, "qemu: '%s' invalid format\n", buf);
|
2218 |
return NULL; |
2219 |
} |
2220 |
} |
2221 |
|
2222 |
on_write_error = BLOCK_ERR_STOP_ENOSPC; |
2223 |
if ((buf = qemu_opt_get(opts, "werror")) != NULL) { |
2224 |
if (type != IF_IDE && type != IF_SCSI && type != IF_VIRTIO) {
|
2225 |
fprintf(stderr, "werror is no supported by this format\n");
|
2226 |
return NULL; |
2227 |
} |
2228 |
|
2229 |
on_write_error = parse_block_error_action(buf, 0);
|
2230 |
if (on_write_error < 0) { |
2231 |
return NULL; |
2232 |
} |
2233 |
} |
2234 |
|
2235 |
on_read_error = BLOCK_ERR_REPORT; |
2236 |
if ((buf = qemu_opt_get(opts, "rerror")) != NULL) { |
2237 |
if (type != IF_IDE && type != IF_VIRTIO) {
|
2238 |
fprintf(stderr, "rerror is no supported by this format\n");
|
2239 |
return NULL; |
2240 |
} |
2241 |
|
2242 |
on_read_error = parse_block_error_action(buf, 1);
|
2243 |
if (on_read_error < 0) { |
2244 |
return NULL; |
2245 |
} |
2246 |
} |
2247 |
|
2248 |
if ((devaddr = qemu_opt_get(opts, "addr")) != NULL) { |
2249 |
if (type != IF_VIRTIO) {
|
2250 |
fprintf(stderr, "addr is not supported\n");
|
2251 |
return NULL; |
2252 |
} |
2253 |
} |
2254 |
|
2255 |
/* compute bus and unit according index */
|
2256 |
|
2257 |
if (index != -1) { |
2258 |
if (bus_id != 0 || unit_id != -1) { |
2259 |
fprintf(stderr, |
2260 |
"qemu: index cannot be used with bus and unit\n");
|
2261 |
return NULL; |
2262 |
} |
2263 |
if (max_devs == 0) |
2264 |
{ |
2265 |
unit_id = index; |
2266 |
bus_id = 0;
|
2267 |
} else {
|
2268 |
unit_id = index % max_devs; |
2269 |
bus_id = index / max_devs; |
2270 |
} |
2271 |
} |
2272 |
|
2273 |
/* if user doesn't specify a unit_id,
|
2274 |
* try to find the first free
|
2275 |
*/
|
2276 |
|
2277 |
if (unit_id == -1) { |
2278 |
unit_id = 0;
|
2279 |
while (drive_get(type, bus_id, unit_id) != NULL) { |
2280 |
unit_id++; |
2281 |
if (max_devs && unit_id >= max_devs) {
|
2282 |
unit_id -= max_devs; |
2283 |
bus_id++; |
2284 |
} |
2285 |
} |
2286 |
} |
2287 |
|
2288 |
/* check unit id */
|
2289 |
|
2290 |
if (max_devs && unit_id >= max_devs) {
|
2291 |
fprintf(stderr, "qemu: unit %d too big (max is %d)\n",
|
2292 |
unit_id, max_devs - 1);
|
2293 |
return NULL; |
2294 |
} |
2295 |
|
2296 |
/*
|
2297 |
* ignore multiple definitions
|
2298 |
*/
|
2299 |
|
2300 |
if (drive_get(type, bus_id, unit_id) != NULL) { |
2301 |
*fatal_error = 0;
|
2302 |
return NULL; |
2303 |
} |
2304 |
|
2305 |
/* init */
|
2306 |
|
2307 |
dinfo = qemu_mallocz(sizeof(*dinfo));
|
2308 |
if ((buf = qemu_opts_id(opts)) != NULL) { |
2309 |
dinfo->id = qemu_strdup(buf); |
2310 |
} else {
|
2311 |
/* no id supplied -> create one */
|
2312 |
dinfo->id = qemu_mallocz(32);
|
2313 |
if (type == IF_IDE || type == IF_SCSI)
|
2314 |
mediastr = (media == MEDIA_CDROM) ? "-cd" : "-hd"; |
2315 |
if (max_devs)
|
2316 |
snprintf(dinfo->id, 32, "%s%i%s%i", |
2317 |
devname, bus_id, mediastr, unit_id); |
2318 |
else
|
2319 |
snprintf(dinfo->id, 32, "%s%s%i", |
2320 |
devname, mediastr, unit_id); |
2321 |
} |
2322 |
dinfo->bdrv = bdrv_new(dinfo->id); |
2323 |
dinfo->devaddr = devaddr; |
2324 |
dinfo->type = type; |
2325 |
dinfo->bus = bus_id; |
2326 |
dinfo->unit = unit_id; |
2327 |
dinfo->on_read_error = on_read_error; |
2328 |
dinfo->on_write_error = on_write_error; |
2329 |
dinfo->opts = opts; |
2330 |
if (serial)
|
2331 |
strncpy(dinfo->serial, serial, sizeof(serial));
|
2332 |
QTAILQ_INSERT_TAIL(&drives, dinfo, next); |
2333 |
|
2334 |
switch(type) {
|
2335 |
case IF_IDE:
|
2336 |
case IF_SCSI:
|
2337 |
case IF_XEN:
|
2338 |
case IF_NONE:
|
2339 |
switch(media) {
|
2340 |
case MEDIA_DISK:
|
2341 |
if (cyls != 0) { |
2342 |
bdrv_set_geometry_hint(dinfo->bdrv, cyls, heads, secs); |
2343 |
bdrv_set_translation_hint(dinfo->bdrv, translation); |
2344 |
} |
2345 |
break;
|
2346 |
case MEDIA_CDROM:
|
2347 |
bdrv_set_type_hint(dinfo->bdrv, BDRV_TYPE_CDROM); |
2348 |
break;
|
2349 |
} |
2350 |
break;
|
2351 |
case IF_SD:
|
2352 |
/* FIXME: This isn't really a floppy, but it's a reasonable
|
2353 |
approximation. */
|
2354 |
case IF_FLOPPY:
|
2355 |
bdrv_set_type_hint(dinfo->bdrv, BDRV_TYPE_FLOPPY); |
2356 |
break;
|
2357 |
case IF_PFLASH:
|
2358 |
case IF_MTD:
|
2359 |
break;
|
2360 |
case IF_VIRTIO:
|
2361 |
/* add virtio block device */
|
2362 |
opts = qemu_opts_create(&qemu_device_opts, NULL, 0); |
2363 |
qemu_opt_set(opts, "driver", "virtio-blk-pci"); |
2364 |
qemu_opt_set(opts, "drive", dinfo->id);
|
2365 |
if (devaddr)
|
2366 |
qemu_opt_set(opts, "addr", devaddr);
|
2367 |
break;
|
2368 |
case IF_COUNT:
|
2369 |
abort(); |
2370 |
} |
2371 |
if (!file) {
|
2372 |
*fatal_error = 0;
|
2373 |
return NULL; |
2374 |
} |
2375 |
bdrv_flags = 0;
|
2376 |
if (snapshot) {
|
2377 |
bdrv_flags |= BDRV_O_SNAPSHOT; |
2378 |
cache = 2; /* always use write-back with snapshot */ |
2379 |
} |
2380 |
if (cache == 0) /* no caching */ |
2381 |
bdrv_flags |= BDRV_O_NOCACHE; |
2382 |
else if (cache == 2) /* write-back */ |
2383 |
bdrv_flags |= BDRV_O_CACHE_WB; |
2384 |
|
2385 |
if (aio == 1) { |
2386 |
bdrv_flags |= BDRV_O_NATIVE_AIO; |
2387 |
} else {
|
2388 |
bdrv_flags &= ~BDRV_O_NATIVE_AIO; |
2389 |
} |
2390 |
|
2391 |
if (ro == 1) { |
2392 |
if (type == IF_IDE) {
|
2393 |
fprintf(stderr, "qemu: readonly flag not supported for drive with ide interface\n");
|
2394 |
return NULL; |
2395 |
} |
2396 |
(void)bdrv_set_read_only(dinfo->bdrv, 1); |
2397 |
} |
2398 |
|
2399 |
if (bdrv_open2(dinfo->bdrv, file, bdrv_flags, drv) < 0) { |
2400 |
fprintf(stderr, "qemu: could not open disk image %s: %s\n",
|
2401 |
file, strerror(errno)); |
2402 |
return NULL; |
2403 |
} |
2404 |
|
2405 |
if (bdrv_key_required(dinfo->bdrv))
|
2406 |
autostart = 0;
|
2407 |
*fatal_error = 0;
|
2408 |
return dinfo;
|
2409 |
} |
2410 |
|
2411 |
static int drive_init_func(QemuOpts *opts, void *opaque) |
2412 |
{ |
2413 |
QEMUMachine *machine = opaque; |
2414 |
int fatal_error = 0; |
2415 |
|
2416 |
if (drive_init(opts, machine, &fatal_error) == NULL) { |
2417 |
if (fatal_error)
|
2418 |
return 1; |
2419 |
} |
2420 |
return 0; |
2421 |
} |
2422 |
|
2423 |
static int drive_enable_snapshot(QemuOpts *opts, void *opaque) |
2424 |
{ |
2425 |
if (NULL == qemu_opt_get(opts, "snapshot")) { |
2426 |
qemu_opt_set(opts, "snapshot", "on"); |
2427 |
} |
2428 |
return 0; |
2429 |
} |
2430 |
|
2431 |
void qemu_register_boot_set(QEMUBootSetHandler *func, void *opaque) |
2432 |
{ |
2433 |
boot_set_handler = func; |
2434 |
boot_set_opaque = opaque; |
2435 |
} |
2436 |
|
2437 |
int qemu_boot_set(const char *boot_devices) |
2438 |
{ |
2439 |
if (!boot_set_handler) {
|
2440 |
return -EINVAL;
|
2441 |
} |
2442 |
return boot_set_handler(boot_set_opaque, boot_devices);
|
2443 |
} |
2444 |
|
2445 |
static int parse_bootdevices(char *devices) |
2446 |
{ |
2447 |
/* We just do some generic consistency checks */
|
2448 |
const char *p; |
2449 |
int bitmap = 0; |
2450 |
|
2451 |
for (p = devices; *p != '\0'; p++) { |
2452 |
/* Allowed boot devices are:
|
2453 |
* a-b: floppy disk drives
|
2454 |
* c-f: IDE disk drives
|
2455 |
* g-m: machine implementation dependant drives
|
2456 |
* n-p: network devices
|
2457 |
* It's up to each machine implementation to check if the given boot
|
2458 |
* devices match the actual hardware implementation and firmware
|
2459 |
* features.
|
2460 |
*/
|
2461 |
if (*p < 'a' || *p > 'p') { |
2462 |
fprintf(stderr, "Invalid boot device '%c'\n", *p);
|
2463 |
exit(1);
|
2464 |
} |
2465 |
if (bitmap & (1 << (*p - 'a'))) { |
2466 |
fprintf(stderr, "Boot device '%c' was given twice\n", *p);
|
2467 |
exit(1);
|
2468 |
} |
2469 |
bitmap |= 1 << (*p - 'a'); |
2470 |
} |
2471 |
return bitmap;
|
2472 |
} |
2473 |
|
2474 |
static void restore_boot_devices(void *opaque) |
2475 |
{ |
2476 |
char *standard_boot_devices = opaque;
|
2477 |
|
2478 |
qemu_boot_set(standard_boot_devices); |
2479 |
|
2480 |
qemu_unregister_reset(restore_boot_devices, standard_boot_devices); |
2481 |
qemu_free(standard_boot_devices); |
2482 |
} |
2483 |
|
2484 |
static void numa_add(const char *optarg) |
2485 |
{ |
2486 |
char option[128]; |
2487 |
char *endptr;
|
2488 |
unsigned long long value, endvalue; |
2489 |
int nodenr;
|
2490 |
|
2491 |
optarg = get_opt_name(option, 128, optarg, ',') + 1; |
2492 |
if (!strcmp(option, "node")) { |
2493 |
if (get_param_value(option, 128, "nodeid", optarg) == 0) { |
2494 |
nodenr = nb_numa_nodes; |
2495 |
} else {
|
2496 |
nodenr = strtoull(option, NULL, 10); |
2497 |
} |
2498 |
|
2499 |
if (get_param_value(option, 128, "mem", optarg) == 0) { |
2500 |
node_mem[nodenr] = 0;
|
2501 |
} else {
|
2502 |
value = strtoull(option, &endptr, 0);
|
2503 |
switch (*endptr) {
|
2504 |
case 0: case 'M': case 'm': |
2505 |
value <<= 20;
|
2506 |
break;
|
2507 |
case 'G': case 'g': |
2508 |
value <<= 30;
|
2509 |
break;
|
2510 |
} |
2511 |
node_mem[nodenr] = value; |
2512 |
} |
2513 |
if (get_param_value(option, 128, "cpus", optarg) == 0) { |
2514 |
node_cpumask[nodenr] = 0;
|
2515 |
} else {
|
2516 |
value = strtoull(option, &endptr, 10);
|
2517 |
if (value >= 64) { |
2518 |
value = 63;
|
2519 |
fprintf(stderr, "only 64 CPUs in NUMA mode supported.\n");
|
2520 |
} else {
|
2521 |
if (*endptr == '-') { |
2522 |
endvalue = strtoull(endptr+1, &endptr, 10); |
2523 |
if (endvalue >= 63) { |
2524 |
endvalue = 62;
|
2525 |
fprintf(stderr, |
2526 |
"only 63 CPUs in NUMA mode supported.\n");
|
2527 |
} |
2528 |
value = (1 << (endvalue + 1)) - (1 << value); |
2529 |
} else {
|
2530 |
value = 1 << value;
|
2531 |
} |
2532 |
} |
2533 |
node_cpumask[nodenr] = value; |
2534 |
} |
2535 |
nb_numa_nodes++; |
2536 |
} |
2537 |
return;
|
2538 |
} |
2539 |
|
2540 |
static void smp_parse(const char *optarg) |
2541 |
{ |
2542 |
int smp, sockets = 0, threads = 0, cores = 0; |
2543 |
char *endptr;
|
2544 |
char option[128]; |
2545 |
|
2546 |
smp = strtoul(optarg, &endptr, 10);
|
2547 |
if (endptr != optarg) {
|
2548 |
if (*endptr == ',') { |
2549 |
endptr++; |
2550 |
} |
2551 |
} |
2552 |
if (get_param_value(option, 128, "sockets", endptr) != 0) |
2553 |
sockets = strtoull(option, NULL, 10); |
2554 |
if (get_param_value(option, 128, "cores", endptr) != 0) |
2555 |
cores = strtoull(option, NULL, 10); |
2556 |
if (get_param_value(option, 128, "threads", endptr) != 0) |
2557 |
threads = strtoull(option, NULL, 10); |
2558 |
if (get_param_value(option, 128, "maxcpus", endptr) != 0) |
2559 |
max_cpus = strtoull(option, NULL, 10); |
2560 |
|
2561 |
/* compute missing values, prefer sockets over cores over threads */
|
2562 |
if (smp == 0 || sockets == 0) { |
2563 |
sockets = sockets > 0 ? sockets : 1; |
2564 |
cores = cores > 0 ? cores : 1; |
2565 |
threads = threads > 0 ? threads : 1; |
2566 |
if (smp == 0) { |
2567 |
smp = cores * threads * sockets; |
2568 |
} else {
|
2569 |
sockets = smp / (cores * threads); |
2570 |
} |
2571 |
} else {
|
2572 |
if (cores == 0) { |
2573 |
threads = threads > 0 ? threads : 1; |
2574 |
cores = smp / (sockets * threads); |
2575 |
} else {
|
2576 |
if (sockets == 0) { |
2577 |
sockets = smp / (cores * threads); |
2578 |
} else {
|
2579 |
threads = smp / (cores * sockets); |
2580 |
} |
2581 |
} |
2582 |
} |
2583 |
smp_cpus = smp; |
2584 |
smp_cores = cores > 0 ? cores : 1; |
2585 |
smp_threads = threads > 0 ? threads : 1; |
2586 |
if (max_cpus == 0) |
2587 |
max_cpus = smp_cpus; |
2588 |
} |
2589 |
|
2590 |
/***********************************************************/
|
2591 |
/* USB devices */
|
2592 |
|
2593 |
static int usb_device_add(const char *devname, int is_hotplug) |
2594 |
{ |
2595 |
const char *p; |
2596 |
USBDevice *dev = NULL;
|
2597 |
|
2598 |
if (!usb_enabled)
|
2599 |
return -1; |
2600 |
|
2601 |
/* drivers with .usbdevice_name entry in USBDeviceInfo */
|
2602 |
dev = usbdevice_create(devname); |
2603 |
if (dev)
|
2604 |
goto done;
|
2605 |
|
2606 |
/* the other ones */
|
2607 |
if (strstart(devname, "host:", &p)) { |
2608 |
dev = usb_host_device_open(p); |
2609 |
} else if (strstart(devname, "net:", &p)) { |
2610 |
QemuOpts *opts; |
2611 |
int idx;
|
2612 |
|
2613 |
opts = qemu_opts_parse(&qemu_net_opts, p, NULL);
|
2614 |
if (!opts) {
|
2615 |
return -1; |
2616 |
} |
2617 |
|
2618 |
qemu_opt_set(opts, "type", "nic"); |
2619 |
qemu_opt_set(opts, "model", "usb"); |
2620 |
|
2621 |
idx = net_client_init(NULL, opts, 0); |
2622 |
if (idx == -1) { |
2623 |
return -1; |
2624 |
} |
2625 |
|
2626 |
dev = usb_net_init(&nd_table[idx]); |
2627 |
} else if (!strcmp(devname, "bt") || strstart(devname, "bt:", &p)) { |
2628 |
dev = usb_bt_init(devname[2] ? hci_init(p) :
|
2629 |
bt_new_hci(qemu_find_bt_vlan(0)));
|
2630 |
} else {
|
2631 |
return -1; |
2632 |
} |
2633 |
if (!dev)
|
2634 |
return -1; |
2635 |
|
2636 |
done:
|
2637 |
return 0; |
2638 |
} |
2639 |
|
2640 |
static int usb_device_del(const char *devname) |
2641 |
{ |
2642 |
int bus_num, addr;
|
2643 |
const char *p; |
2644 |
|
2645 |
if (strstart(devname, "host:", &p)) |
2646 |
return usb_host_device_close(p);
|
2647 |
|
2648 |
if (!usb_enabled)
|
2649 |
return -1; |
2650 |
|
2651 |
p = strchr(devname, '.');
|
2652 |
if (!p)
|
2653 |
return -1; |
2654 |
bus_num = strtoul(devname, NULL, 0); |
2655 |
addr = strtoul(p + 1, NULL, 0); |
2656 |
|
2657 |
return usb_device_delete_addr(bus_num, addr);
|
2658 |
} |
2659 |
|
2660 |
static int usb_parse(const char *cmdline) |
2661 |
{ |
2662 |
return usb_device_add(cmdline, 0); |
2663 |
} |
2664 |
|
2665 |
void do_usb_add(Monitor *mon, const QDict *qdict) |
2666 |
{ |
2667 |
usb_device_add(qdict_get_str(qdict, "devname"), 1); |
2668 |
} |
2669 |
|
2670 |
void do_usb_del(Monitor *mon, const QDict *qdict) |
2671 |
{ |
2672 |
usb_device_del(qdict_get_str(qdict, "devname"));
|
2673 |
} |
2674 |
|
2675 |
/***********************************************************/
|
2676 |
/* PCMCIA/Cardbus */
|
2677 |
|
2678 |
static struct pcmcia_socket_entry_s { |
2679 |
PCMCIASocket *socket; |
2680 |
struct pcmcia_socket_entry_s *next;
|
2681 |
} *pcmcia_sockets = 0;
|
2682 |
|
2683 |
void pcmcia_socket_register(PCMCIASocket *socket)
|
2684 |
{ |
2685 |
struct pcmcia_socket_entry_s *entry;
|
2686 |
|
2687 |
entry = qemu_malloc(sizeof(struct pcmcia_socket_entry_s)); |
2688 |
entry->socket = socket; |
2689 |
entry->next = pcmcia_sockets; |
2690 |
pcmcia_sockets = entry; |
2691 |
} |
2692 |
|
2693 |
void pcmcia_socket_unregister(PCMCIASocket *socket)
|
2694 |
{ |
2695 |
struct pcmcia_socket_entry_s *entry, **ptr;
|
2696 |
|
2697 |
ptr = &pcmcia_sockets; |
2698 |
for (entry = *ptr; entry; ptr = &entry->next, entry = *ptr)
|
2699 |
if (entry->socket == socket) {
|
2700 |
*ptr = entry->next; |
2701 |
qemu_free(entry); |
2702 |
} |
2703 |
} |
2704 |
|
2705 |
void pcmcia_info(Monitor *mon)
|
2706 |
{ |
2707 |
struct pcmcia_socket_entry_s *iter;
|
2708 |
|
2709 |
if (!pcmcia_sockets)
|
2710 |
monitor_printf(mon, "No PCMCIA sockets\n");
|
2711 |
|
2712 |
for (iter = pcmcia_sockets; iter; iter = iter->next)
|
2713 |
monitor_printf(mon, "%s: %s\n", iter->socket->slot_string,
|
2714 |
iter->socket->attached ? iter->socket->card_string : |
2715 |
"Empty");
|
2716 |
} |
2717 |
|
2718 |
/***********************************************************/
|
2719 |
/* register display */
|
2720 |
|
2721 |
struct DisplayAllocator default_allocator = {
|
2722 |
defaultallocator_create_displaysurface, |
2723 |
defaultallocator_resize_displaysurface, |
2724 |
defaultallocator_free_displaysurface |
2725 |
}; |
2726 |
|
2727 |
void register_displaystate(DisplayState *ds)
|
2728 |
{ |
2729 |
DisplayState **s; |
2730 |
s = &display_state; |
2731 |
while (*s != NULL) |
2732 |
s = &(*s)->next; |
2733 |
ds->next = NULL;
|
2734 |
*s = ds; |
2735 |
} |
2736 |
|
2737 |
DisplayState *get_displaystate(void)
|
2738 |
{ |
2739 |
return display_state;
|
2740 |
} |
2741 |
|
2742 |
DisplayAllocator *register_displayallocator(DisplayState *ds, DisplayAllocator *da) |
2743 |
{ |
2744 |
if(ds->allocator == &default_allocator) ds->allocator = da;
|
2745 |
return ds->allocator;
|
2746 |
} |
2747 |
|
2748 |
/* dumb display */
|
2749 |
|
2750 |
static void dumb_display_init(void) |
2751 |
{ |
2752 |
DisplayState *ds = qemu_mallocz(sizeof(DisplayState));
|
2753 |
ds->allocator = &default_allocator; |
2754 |
ds->surface = qemu_create_displaysurface(ds, 640, 480); |
2755 |
register_displaystate(ds); |
2756 |
} |
2757 |
|
2758 |
/***********************************************************/
|
2759 |
/* I/O handling */
|
2760 |
|
2761 |
typedef struct IOHandlerRecord { |
2762 |
int fd;
|
2763 |
IOCanRWHandler *fd_read_poll; |
2764 |
IOHandler *fd_read; |
2765 |
IOHandler *fd_write; |
2766 |
int deleted;
|
2767 |
void *opaque;
|
2768 |
/* temporary data */
|
2769 |
struct pollfd *ufd;
|
2770 |
struct IOHandlerRecord *next;
|
2771 |
} IOHandlerRecord; |
2772 |
|
2773 |
static IOHandlerRecord *first_io_handler;
|
2774 |
|
2775 |
/* XXX: fd_read_poll should be suppressed, but an API change is
|
2776 |
necessary in the character devices to suppress fd_can_read(). */
|
2777 |
int qemu_set_fd_handler2(int fd, |
2778 |
IOCanRWHandler *fd_read_poll, |
2779 |
IOHandler *fd_read, |
2780 |
IOHandler *fd_write, |
2781 |
void *opaque)
|
2782 |
{ |
2783 |
IOHandlerRecord **pioh, *ioh; |
2784 |
|
2785 |
if (!fd_read && !fd_write) {
|
2786 |
pioh = &first_io_handler; |
2787 |
for(;;) {
|
2788 |
ioh = *pioh; |
2789 |
if (ioh == NULL) |
2790 |
break;
|
2791 |
if (ioh->fd == fd) {
|
2792 |
ioh->deleted = 1;
|
2793 |
break;
|
2794 |
} |
2795 |
pioh = &ioh->next; |
2796 |
} |
2797 |
} else {
|
2798 |
for(ioh = first_io_handler; ioh != NULL; ioh = ioh->next) { |
2799 |
if (ioh->fd == fd)
|
2800 |
goto found;
|
2801 |
} |
2802 |
ioh = qemu_mallocz(sizeof(IOHandlerRecord));
|
2803 |
ioh->next = first_io_handler; |
2804 |
first_io_handler = ioh; |
2805 |
found:
|
2806 |
ioh->fd = fd; |
2807 |
ioh->fd_read_poll = fd_read_poll; |
2808 |
ioh->fd_read = fd_read; |
2809 |
ioh->fd_write = fd_write; |
2810 |
ioh->opaque = opaque; |
2811 |
ioh->deleted = 0;
|
2812 |
} |
2813 |
return 0; |
2814 |
} |
2815 |
|
2816 |
int qemu_set_fd_handler(int fd, |
2817 |
IOHandler *fd_read, |
2818 |
IOHandler *fd_write, |
2819 |
void *opaque)
|
2820 |
{ |
2821 |
return qemu_set_fd_handler2(fd, NULL, fd_read, fd_write, opaque); |
2822 |
} |
2823 |
|
2824 |
#ifdef _WIN32
|
2825 |
/***********************************************************/
|
2826 |
/* Polling handling */
|
2827 |
|
2828 |
typedef struct PollingEntry { |
2829 |
PollingFunc *func; |
2830 |
void *opaque;
|
2831 |
struct PollingEntry *next;
|
2832 |
} PollingEntry; |
2833 |
|
2834 |
static PollingEntry *first_polling_entry;
|
2835 |
|
2836 |
int qemu_add_polling_cb(PollingFunc *func, void *opaque) |
2837 |
{ |
2838 |
PollingEntry **ppe, *pe; |
2839 |
pe = qemu_mallocz(sizeof(PollingEntry));
|
2840 |
pe->func = func; |
2841 |
pe->opaque = opaque; |
2842 |
for(ppe = &first_polling_entry; *ppe != NULL; ppe = &(*ppe)->next); |
2843 |
*ppe = pe; |
2844 |
return 0; |
2845 |
} |
2846 |
|
2847 |
void qemu_del_polling_cb(PollingFunc *func, void *opaque) |
2848 |
{ |
2849 |
PollingEntry **ppe, *pe; |
2850 |
for(ppe = &first_polling_entry; *ppe != NULL; ppe = &(*ppe)->next) { |
2851 |
pe = *ppe; |
2852 |
if (pe->func == func && pe->opaque == opaque) {
|
2853 |
*ppe = pe->next; |
2854 |
qemu_free(pe); |
2855 |
break;
|
2856 |
} |
2857 |
} |
2858 |
} |
2859 |
|
2860 |
/***********************************************************/
|
2861 |
/* Wait objects support */
|
2862 |
typedef struct WaitObjects { |
2863 |
int num;
|
2864 |
HANDLE events[MAXIMUM_WAIT_OBJECTS + 1];
|
2865 |
WaitObjectFunc *func[MAXIMUM_WAIT_OBJECTS + 1];
|
2866 |
void *opaque[MAXIMUM_WAIT_OBJECTS + 1]; |
2867 |
} WaitObjects; |
2868 |
|
2869 |
static WaitObjects wait_objects = {0}; |
2870 |
|
2871 |
int qemu_add_wait_object(HANDLE handle, WaitObjectFunc *func, void *opaque) |
2872 |
{ |
2873 |
WaitObjects *w = &wait_objects; |
2874 |
|
2875 |
if (w->num >= MAXIMUM_WAIT_OBJECTS)
|
2876 |
return -1; |
2877 |
w->events[w->num] = handle; |
2878 |
w->func[w->num] = func; |
2879 |
w->opaque[w->num] = opaque; |
2880 |
w->num++; |
2881 |
return 0; |
2882 |
} |
2883 |
|
2884 |
void qemu_del_wait_object(HANDLE handle, WaitObjectFunc *func, void *opaque) |
2885 |
{ |
2886 |
int i, found;
|
2887 |
WaitObjects *w = &wait_objects; |
2888 |
|
2889 |
found = 0;
|
2890 |
for (i = 0; i < w->num; i++) { |
2891 |
if (w->events[i] == handle)
|
2892 |
found = 1;
|
2893 |
if (found) {
|
2894 |
w->events[i] = w->events[i + 1];
|
2895 |
w->func[i] = w->func[i + 1];
|
2896 |
w->opaque[i] = w->opaque[i + 1];
|
2897 |
} |
2898 |
} |
2899 |
if (found)
|
2900 |
w->num--; |
2901 |
} |
2902 |
#endif
|
2903 |
|
2904 |
/***********************************************************/
|
2905 |
/* ram save/restore */
|
2906 |
|
2907 |
#define RAM_SAVE_FLAG_FULL 0x01 /* Obsolete, not used anymore */ |
2908 |
#define RAM_SAVE_FLAG_COMPRESS 0x02 |
2909 |
#define RAM_SAVE_FLAG_MEM_SIZE 0x04 |
2910 |
#define RAM_SAVE_FLAG_PAGE 0x08 |
2911 |
#define RAM_SAVE_FLAG_EOS 0x10 |
2912 |
|
2913 |
static int is_dup_page(uint8_t *page, uint8_t ch) |
2914 |
{ |
2915 |
uint32_t val = ch << 24 | ch << 16 | ch << 8 | ch; |
2916 |
uint32_t *array = (uint32_t *)page; |
2917 |
int i;
|
2918 |
|
2919 |
for (i = 0; i < (TARGET_PAGE_SIZE / 4); i++) { |
2920 |
if (array[i] != val)
|
2921 |
return 0; |
2922 |
} |
2923 |
|
2924 |
return 1; |
2925 |
} |
2926 |
|
2927 |
static int ram_save_block(QEMUFile *f) |
2928 |
{ |
2929 |
static ram_addr_t current_addr = 0; |
2930 |
ram_addr_t saved_addr = current_addr; |
2931 |
ram_addr_t addr = 0;
|
2932 |
int found = 0; |
2933 |
|
2934 |
while (addr < last_ram_offset) {
|
2935 |
if (cpu_physical_memory_get_dirty(current_addr, MIGRATION_DIRTY_FLAG)) {
|
2936 |
uint8_t *p; |
2937 |
|
2938 |
cpu_physical_memory_reset_dirty(current_addr, |
2939 |
current_addr + TARGET_PAGE_SIZE, |
2940 |
MIGRATION_DIRTY_FLAG); |
2941 |
|
2942 |
p = qemu_get_ram_ptr(current_addr); |
2943 |
|
2944 |
if (is_dup_page(p, *p)) {
|
2945 |
qemu_put_be64(f, current_addr | RAM_SAVE_FLAG_COMPRESS); |
2946 |
qemu_put_byte(f, *p); |
2947 |
} else {
|
2948 |
qemu_put_be64(f, current_addr | RAM_SAVE_FLAG_PAGE); |
2949 |
qemu_put_buffer(f, p, TARGET_PAGE_SIZE); |
2950 |
} |
2951 |
|
2952 |
found = 1;
|
2953 |
break;
|
2954 |
} |
2955 |
addr += TARGET_PAGE_SIZE; |
2956 |
current_addr = (saved_addr + addr) % last_ram_offset; |
2957 |
} |
2958 |
|
2959 |
return found;
|
2960 |
} |
2961 |
|
2962 |
static uint64_t bytes_transferred;
|
2963 |
|
2964 |
static ram_addr_t ram_save_remaining(void) |
2965 |
{ |
2966 |
ram_addr_t addr; |
2967 |
ram_addr_t count = 0;
|
2968 |
|
2969 |
for (addr = 0; addr < last_ram_offset; addr += TARGET_PAGE_SIZE) { |
2970 |
if (cpu_physical_memory_get_dirty(addr, MIGRATION_DIRTY_FLAG))
|
2971 |
count++; |
2972 |
} |
2973 |
|
2974 |
return count;
|
2975 |
} |
2976 |
|
2977 |
uint64_t ram_bytes_remaining(void)
|
2978 |
{ |
2979 |
return ram_save_remaining() * TARGET_PAGE_SIZE;
|
2980 |
} |
2981 |
|
2982 |
uint64_t ram_bytes_transferred(void)
|
2983 |
{ |
2984 |
return bytes_transferred;
|
2985 |
} |
2986 |
|
2987 |
uint64_t ram_bytes_total(void)
|
2988 |
{ |
2989 |
return last_ram_offset;
|
2990 |
} |
2991 |
|
2992 |
static int ram_save_live(Monitor *mon, QEMUFile *f, int stage, void *opaque) |
2993 |
{ |
2994 |
ram_addr_t addr; |
2995 |
uint64_t bytes_transferred_last; |
2996 |
double bwidth = 0; |
2997 |
uint64_t expected_time = 0;
|
2998 |
|
2999 |
if (stage < 0) { |
3000 |
cpu_physical_memory_set_dirty_tracking(0);
|
3001 |
return 0; |
3002 |
} |
3003 |
|
3004 |
if (cpu_physical_sync_dirty_bitmap(0, TARGET_PHYS_ADDR_MAX) != 0) { |
3005 |
qemu_file_set_error(f); |
3006 |
return 0; |
3007 |
} |
3008 |
|
3009 |
if (stage == 1) { |
3010 |
bytes_transferred = 0;
|
3011 |
|
3012 |
/* Make sure all dirty bits are set */
|
3013 |
for (addr = 0; addr < last_ram_offset; addr += TARGET_PAGE_SIZE) { |
3014 |
if (!cpu_physical_memory_get_dirty(addr, MIGRATION_DIRTY_FLAG))
|
3015 |
cpu_physical_memory_set_dirty(addr); |
3016 |
} |
3017 |
|
3018 |
/* Enable dirty memory tracking */
|
3019 |
cpu_physical_memory_set_dirty_tracking(1);
|
3020 |
|
3021 |
qemu_put_be64(f, last_ram_offset | RAM_SAVE_FLAG_MEM_SIZE); |
3022 |
} |
3023 |
|
3024 |
bytes_transferred_last = bytes_transferred; |
3025 |
bwidth = get_clock(); |
3026 |
|
3027 |
while (!qemu_file_rate_limit(f)) {
|
3028 |
int ret;
|
3029 |
|
3030 |
ret = ram_save_block(f); |
3031 |
bytes_transferred += ret * TARGET_PAGE_SIZE; |
3032 |
if (ret == 0) /* no more blocks */ |
3033 |
break;
|
3034 |
} |
3035 |
|
3036 |
bwidth = get_clock() - bwidth; |
3037 |
bwidth = (bytes_transferred - bytes_transferred_last) / bwidth; |
3038 |
|
3039 |
/* if we haven't transferred anything this round, force expected_time to a
|
3040 |
* a very high value, but without crashing */
|
3041 |
if (bwidth == 0) |
3042 |
bwidth = 0.000001; |
3043 |
|
3044 |
/* try transferring iterative blocks of memory */
|
3045 |
if (stage == 3) { |
3046 |
/* flush all remaining blocks regardless of rate limiting */
|
3047 |
while (ram_save_block(f) != 0) { |
3048 |
bytes_transferred += TARGET_PAGE_SIZE; |
3049 |
} |
3050 |
cpu_physical_memory_set_dirty_tracking(0);
|
3051 |
} |
3052 |
|
3053 |
qemu_put_be64(f, RAM_SAVE_FLAG_EOS); |
3054 |
|
3055 |
expected_time = ram_save_remaining() * TARGET_PAGE_SIZE / bwidth; |
3056 |
|
3057 |
return (stage == 2) && (expected_time <= migrate_max_downtime()); |
3058 |
} |
3059 |
|
3060 |
static int ram_load(QEMUFile *f, void *opaque, int version_id) |
3061 |
{ |
3062 |
ram_addr_t addr; |
3063 |
int flags;
|
3064 |
|
3065 |
if (version_id != 3) |
3066 |
return -EINVAL;
|
3067 |
|
3068 |
do {
|
3069 |
addr = qemu_get_be64(f); |
3070 |
|
3071 |
flags = addr & ~TARGET_PAGE_MASK; |
3072 |
addr &= TARGET_PAGE_MASK; |
3073 |
|
3074 |
if (flags & RAM_SAVE_FLAG_MEM_SIZE) {
|
3075 |
if (addr != last_ram_offset)
|
3076 |
return -EINVAL;
|
3077 |
} |
3078 |
|
3079 |
if (flags & RAM_SAVE_FLAG_COMPRESS) {
|
3080 |
uint8_t ch = qemu_get_byte(f); |
3081 |
memset(qemu_get_ram_ptr(addr), ch, TARGET_PAGE_SIZE); |
3082 |
#ifndef _WIN32
|
3083 |
if (ch == 0 && |
3084 |
(!kvm_enabled() || kvm_has_sync_mmu())) { |
3085 |
madvise(qemu_get_ram_ptr(addr), TARGET_PAGE_SIZE, MADV_DONTNEED); |
3086 |
} |
3087 |
#endif
|
3088 |
} else if (flags & RAM_SAVE_FLAG_PAGE) { |
3089 |
qemu_get_buffer(f, qemu_get_ram_ptr(addr), TARGET_PAGE_SIZE); |
3090 |
} |
3091 |
if (qemu_file_has_error(f)) {
|
3092 |
return -EIO;
|
3093 |
} |
3094 |
} while (!(flags & RAM_SAVE_FLAG_EOS));
|
3095 |
|
3096 |
return 0; |
3097 |
} |
3098 |
|
3099 |
void qemu_service_io(void) |
3100 |
{ |
3101 |
qemu_notify_event(); |
3102 |
} |
3103 |
|
3104 |
/***********************************************************/
|
3105 |
/* machine registration */
|
3106 |
|
3107 |
static QEMUMachine *first_machine = NULL; |
3108 |
QEMUMachine *current_machine = NULL;
|
3109 |
|
3110 |
int qemu_register_machine(QEMUMachine *m)
|
3111 |
{ |
3112 |
QEMUMachine **pm; |
3113 |
pm = &first_machine; |
3114 |
while (*pm != NULL) |
3115 |
pm = &(*pm)->next; |
3116 |
m->next = NULL;
|
3117 |
*pm = m; |
3118 |
return 0; |
3119 |
} |
3120 |
|
3121 |
static QEMUMachine *find_machine(const char *name) |
3122 |
{ |
3123 |
QEMUMachine *m; |
3124 |
|
3125 |
for(m = first_machine; m != NULL; m = m->next) { |
3126 |
if (!strcmp(m->name, name))
|
3127 |
return m;
|
3128 |
if (m->alias && !strcmp(m->alias, name))
|
3129 |
return m;
|
3130 |
} |
3131 |
return NULL; |
3132 |
} |
3133 |
|
3134 |
static QEMUMachine *find_default_machine(void) |
3135 |
{ |
3136 |
QEMUMachine *m; |
3137 |
|
3138 |
for(m = first_machine; m != NULL; m = m->next) { |
3139 |
if (m->is_default) {
|
3140 |
return m;
|
3141 |
} |
3142 |
} |
3143 |
return NULL; |
3144 |
} |
3145 |
|
3146 |
/***********************************************************/
|
3147 |
/* main execution loop */
|
3148 |
|
3149 |
static void gui_update(void *opaque) |
3150 |
{ |
3151 |
uint64_t interval = GUI_REFRESH_INTERVAL; |
3152 |
DisplayState *ds = opaque; |
3153 |
DisplayChangeListener *dcl = ds->listeners; |
3154 |
|
3155 |
dpy_refresh(ds); |
3156 |
|
3157 |
while (dcl != NULL) { |
3158 |
if (dcl->gui_timer_interval &&
|
3159 |
dcl->gui_timer_interval < interval) |
3160 |
interval = dcl->gui_timer_interval; |
3161 |
dcl = dcl->next; |
3162 |
} |
3163 |
qemu_mod_timer(ds->gui_timer, interval + qemu_get_clock(rt_clock)); |
3164 |
} |
3165 |
|
3166 |
static void nographic_update(void *opaque) |
3167 |
{ |
3168 |
uint64_t interval = GUI_REFRESH_INTERVAL; |
3169 |
|
3170 |
qemu_mod_timer(nographic_timer, interval + qemu_get_clock(rt_clock)); |
3171 |
} |
3172 |
|
3173 |
struct vm_change_state_entry {
|
3174 |
VMChangeStateHandler *cb; |
3175 |
void *opaque;
|
3176 |
QLIST_ENTRY (vm_change_state_entry) entries; |
3177 |
}; |
3178 |
|
3179 |
static QLIST_HEAD(vm_change_state_head, vm_change_state_entry) vm_change_state_head;
|
3180 |
|
3181 |
VMChangeStateEntry *qemu_add_vm_change_state_handler(VMChangeStateHandler *cb, |
3182 |
void *opaque)
|
3183 |
{ |
3184 |
VMChangeStateEntry *e; |
3185 |
|
3186 |
e = qemu_mallocz(sizeof (*e));
|
3187 |
|
3188 |
e->cb = cb; |
3189 |
e->opaque = opaque; |
3190 |
QLIST_INSERT_HEAD(&vm_change_state_head, e, entries); |
3191 |
return e;
|
3192 |
} |
3193 |
|
3194 |
void qemu_del_vm_change_state_handler(VMChangeStateEntry *e)
|
3195 |
{ |
3196 |
QLIST_REMOVE (e, entries); |
3197 |
qemu_free (e); |
3198 |
} |
3199 |
|
3200 |
static void vm_state_notify(int running, int reason) |
3201 |
{ |
3202 |
VMChangeStateEntry *e; |
3203 |
|
3204 |
for (e = vm_change_state_head.lh_first; e; e = e->entries.le_next) {
|
3205 |
e->cb(e->opaque, running, reason); |
3206 |
} |
3207 |
} |
3208 |
|
3209 |
static void resume_all_vcpus(void); |
3210 |
static void pause_all_vcpus(void); |
3211 |
|
3212 |
void vm_start(void) |
3213 |
{ |
3214 |
if (!vm_running) {
|
3215 |
cpu_enable_ticks(); |
3216 |
vm_running = 1;
|
3217 |
vm_state_notify(1, 0); |
3218 |
qemu_rearm_alarm_timer(alarm_timer); |
3219 |
resume_all_vcpus(); |
3220 |
} |
3221 |
} |
3222 |
|
3223 |
/* reset/shutdown handler */
|
3224 |
|
3225 |
typedef struct QEMUResetEntry { |
3226 |
QTAILQ_ENTRY(QEMUResetEntry) entry; |
3227 |
QEMUResetHandler *func; |
3228 |
void *opaque;
|
3229 |
} QEMUResetEntry; |
3230 |
|
3231 |
static QTAILQ_HEAD(reset_handlers, QEMUResetEntry) reset_handlers =
|
3232 |
QTAILQ_HEAD_INITIALIZER(reset_handlers); |
3233 |
static int reset_requested; |
3234 |
static int shutdown_requested; |
3235 |
static int powerdown_requested; |
3236 |
static int debug_requested; |
3237 |
static int vmstop_requested; |
3238 |
|
3239 |
int qemu_shutdown_requested(void) |
3240 |
{ |
3241 |
int r = shutdown_requested;
|
3242 |
shutdown_requested = 0;
|
3243 |
return r;
|
3244 |
} |
3245 |
|
3246 |
int qemu_reset_requested(void) |
3247 |
{ |
3248 |
int r = reset_requested;
|
3249 |
reset_requested = 0;
|
3250 |
return r;
|
3251 |
} |
3252 |
|
3253 |
int qemu_powerdown_requested(void) |
3254 |
{ |
3255 |
int r = powerdown_requested;
|
3256 |
powerdown_requested = 0;
|
3257 |
return r;
|
3258 |
} |
3259 |
|
3260 |
static int qemu_debug_requested(void) |
3261 |
{ |
3262 |
int r = debug_requested;
|
3263 |
debug_requested = 0;
|
3264 |
return r;
|
3265 |
} |
3266 |
|
3267 |
static int qemu_vmstop_requested(void) |
3268 |
{ |
3269 |
int r = vmstop_requested;
|
3270 |
vmstop_requested = 0;
|
3271 |
return r;
|
3272 |
} |
3273 |
|
3274 |
static void do_vm_stop(int reason) |
3275 |
{ |
3276 |
if (vm_running) {
|
3277 |
cpu_disable_ticks(); |
3278 |
vm_running = 0;
|
3279 |
pause_all_vcpus(); |
3280 |
vm_state_notify(0, reason);
|
3281 |
} |
3282 |
} |
3283 |
|
3284 |
void qemu_register_reset(QEMUResetHandler *func, void *opaque) |
3285 |
{ |
3286 |
QEMUResetEntry *re = qemu_mallocz(sizeof(QEMUResetEntry));
|
3287 |
|
3288 |
re->func = func; |
3289 |
re->opaque = opaque; |
3290 |
QTAILQ_INSERT_TAIL(&reset_handlers, re, entry); |
3291 |
} |
3292 |
|
3293 |
void qemu_unregister_reset(QEMUResetHandler *func, void *opaque) |
3294 |
{ |
3295 |
QEMUResetEntry *re; |
3296 |
|
3297 |
QTAILQ_FOREACH(re, &reset_handlers, entry) { |
3298 |
if (re->func == func && re->opaque == opaque) {
|
3299 |
QTAILQ_REMOVE(&reset_handlers, re, entry); |
3300 |
qemu_free(re); |
3301 |
return;
|
3302 |
} |
3303 |
} |
3304 |
} |
3305 |
|
3306 |
void qemu_system_reset(void) |
3307 |
{ |
3308 |
QEMUResetEntry *re, *nre; |
3309 |
|
3310 |
/* reset all devices */
|
3311 |
QTAILQ_FOREACH_SAFE(re, &reset_handlers, entry, nre) { |
3312 |
re->func(re->opaque); |
3313 |
} |
3314 |
} |
3315 |
|
3316 |
void qemu_system_reset_request(void) |
3317 |
{ |
3318 |
if (no_reboot) {
|
3319 |
shutdown_requested = 1;
|
3320 |
} else {
|
3321 |
reset_requested = 1;
|
3322 |
} |
3323 |
qemu_notify_event(); |
3324 |
} |
3325 |
|
3326 |
void qemu_system_shutdown_request(void) |
3327 |
{ |
3328 |
shutdown_requested = 1;
|
3329 |
qemu_notify_event(); |
3330 |
} |
3331 |
|
3332 |
void qemu_system_powerdown_request(void) |
3333 |
{ |
3334 |
powerdown_requested = 1;
|
3335 |
qemu_notify_event(); |
3336 |
} |
3337 |
|
3338 |
#ifdef CONFIG_IOTHREAD
|
3339 |
static void qemu_system_vmstop_request(int reason) |
3340 |
{ |
3341 |
vmstop_requested = reason; |
3342 |
qemu_notify_event(); |
3343 |
} |
3344 |
#endif
|
3345 |
|
3346 |
#ifndef _WIN32
|
3347 |
static int io_thread_fd = -1; |
3348 |
|
3349 |
static void qemu_event_increment(void) |
3350 |
{ |
3351 |
static const char byte = 0; |
3352 |
|
3353 |
if (io_thread_fd == -1) |
3354 |
return;
|
3355 |
|
3356 |
write(io_thread_fd, &byte, sizeof(byte));
|
3357 |
} |
3358 |
|
3359 |
static void qemu_event_read(void *opaque) |
3360 |
{ |
3361 |
int fd = (unsigned long)opaque; |
3362 |
ssize_t len; |
3363 |
|
3364 |
/* Drain the notify pipe */
|
3365 |
do {
|
3366 |
char buffer[512]; |
3367 |
len = read(fd, buffer, sizeof(buffer));
|
3368 |
} while ((len == -1 && errno == EINTR) || len > 0); |
3369 |
} |
3370 |
|
3371 |
static int qemu_event_init(void) |
3372 |
{ |
3373 |
int err;
|
3374 |
int fds[2]; |
3375 |
|
3376 |
err = qemu_pipe(fds); |
3377 |
if (err == -1) |
3378 |
return -errno;
|
3379 |
|
3380 |
err = fcntl_setfl(fds[0], O_NONBLOCK);
|
3381 |
if (err < 0) |
3382 |
goto fail;
|
3383 |
|
3384 |
err = fcntl_setfl(fds[1], O_NONBLOCK);
|
3385 |
if (err < 0) |
3386 |
goto fail;
|
3387 |
|
3388 |
qemu_set_fd_handler2(fds[0], NULL, qemu_event_read, NULL, |
3389 |
(void *)(unsigned long)fds[0]); |
3390 |
|
3391 |
io_thread_fd = fds[1];
|
3392 |
return 0; |
3393 |
|
3394 |
fail:
|
3395 |
close(fds[0]);
|
3396 |
close(fds[1]);
|
3397 |
return err;
|
3398 |
} |
3399 |
#else
|
3400 |
HANDLE qemu_event_handle; |
3401 |
|
3402 |
static void dummy_event_handler(void *opaque) |
3403 |
{ |
3404 |
} |
3405 |
|
3406 |
static int qemu_event_init(void) |
3407 |
{ |
3408 |
qemu_event_handle = CreateEvent(NULL, FALSE, FALSE, NULL); |
3409 |
if (!qemu_event_handle) {
|
3410 |
fprintf(stderr, "Failed CreateEvent: %ld\n", GetLastError());
|
3411 |
return -1; |
3412 |
} |
3413 |
qemu_add_wait_object(qemu_event_handle, dummy_event_handler, NULL);
|
3414 |
return 0; |
3415 |
} |
3416 |
|
3417 |
static void qemu_event_increment(void) |
3418 |
{ |
3419 |
if (!SetEvent(qemu_event_handle)) {
|
3420 |
fprintf(stderr, "qemu_event_increment: SetEvent failed: %ld\n",
|
3421 |
GetLastError()); |
3422 |
exit (1);
|
3423 |
} |
3424 |
} |
3425 |
#endif
|
3426 |
|
3427 |
static int cpu_can_run(CPUState *env) |
3428 |
{ |
3429 |
if (env->stop)
|
3430 |
return 0; |
3431 |
if (env->stopped)
|
3432 |
return 0; |
3433 |
return 1; |
3434 |
} |
3435 |
|
3436 |
#ifndef CONFIG_IOTHREAD
|
3437 |
static int qemu_init_main_loop(void) |
3438 |
{ |
3439 |
return qemu_event_init();
|
3440 |
} |
3441 |
|
3442 |
void qemu_init_vcpu(void *_env) |
3443 |
{ |
3444 |
CPUState *env = _env; |
3445 |
|
3446 |
if (kvm_enabled())
|
3447 |
kvm_init_vcpu(env); |
3448 |
env->nr_cores = smp_cores; |
3449 |
env->nr_threads = smp_threads; |
3450 |
return;
|
3451 |
} |
3452 |
|
3453 |
int qemu_cpu_self(void *env) |
3454 |
{ |
3455 |
return 1; |
3456 |
} |
3457 |
|
3458 |
static void resume_all_vcpus(void) |
3459 |
{ |
3460 |
} |
3461 |
|
3462 |
static void pause_all_vcpus(void) |
3463 |
{ |
3464 |
} |
3465 |
|
3466 |
void qemu_cpu_kick(void *env) |
3467 |
{ |
3468 |
return;
|
3469 |
} |
3470 |
|
3471 |
void qemu_notify_event(void) |
3472 |
{ |
3473 |
CPUState *env = cpu_single_env; |
3474 |
|
3475 |
if (env) {
|
3476 |
cpu_exit(env); |
3477 |
} |
3478 |
} |
3479 |
|
3480 |
void qemu_mutex_lock_iothread(void) {} |
3481 |
void qemu_mutex_unlock_iothread(void) {} |
3482 |
|
3483 |
void vm_stop(int reason) |
3484 |
{ |
3485 |
do_vm_stop(reason); |
3486 |
} |
3487 |
|
3488 |
#else /* CONFIG_IOTHREAD */ |
3489 |
|
3490 |
#include "qemu-thread.h" |
3491 |
|
3492 |
QemuMutex qemu_global_mutex; |
3493 |
static QemuMutex qemu_fair_mutex;
|
3494 |
|
3495 |
static QemuThread io_thread;
|
3496 |
|
3497 |
static QemuThread *tcg_cpu_thread;
|
3498 |
static QemuCond *tcg_halt_cond;
|
3499 |
|
3500 |
static int qemu_system_ready; |
3501 |
/* cpu creation */
|
3502 |
static QemuCond qemu_cpu_cond;
|
3503 |
/* system init */
|
3504 |
static QemuCond qemu_system_cond;
|
3505 |
static QemuCond qemu_pause_cond;
|
3506 |
|
3507 |
static void block_io_signals(void); |
3508 |
static void unblock_io_signals(void); |
3509 |
static int tcg_has_work(void); |
3510 |
|
3511 |
static int qemu_init_main_loop(void) |
3512 |
{ |
3513 |
int ret;
|
3514 |
|
3515 |
ret = qemu_event_init(); |
3516 |
if (ret)
|
3517 |
return ret;
|
3518 |
|
3519 |
qemu_cond_init(&qemu_pause_cond); |
3520 |
qemu_mutex_init(&qemu_fair_mutex); |
3521 |
qemu_mutex_init(&qemu_global_mutex); |
3522 |
qemu_mutex_lock(&qemu_global_mutex); |
3523 |
|
3524 |
unblock_io_signals(); |
3525 |
qemu_thread_self(&io_thread); |
3526 |
|
3527 |
return 0; |
3528 |
} |
3529 |
|
3530 |
static void qemu_wait_io_event(CPUState *env) |
3531 |
{ |
3532 |
while (!tcg_has_work())
|
3533 |
qemu_cond_timedwait(env->halt_cond, &qemu_global_mutex, 1000);
|
3534 |
|
3535 |
qemu_mutex_unlock(&qemu_global_mutex); |
3536 |
|
3537 |
/*
|
3538 |
* Users of qemu_global_mutex can be starved, having no chance
|
3539 |
* to acquire it since this path will get to it first.
|
3540 |
* So use another lock to provide fairness.
|
3541 |
*/
|
3542 |
qemu_mutex_lock(&qemu_fair_mutex); |
3543 |
qemu_mutex_unlock(&qemu_fair_mutex); |
3544 |
|
3545 |
qemu_mutex_lock(&qemu_global_mutex); |
3546 |
if (env->stop) {
|
3547 |
env->stop = 0;
|
3548 |
env->stopped = 1;
|
3549 |
qemu_cond_signal(&qemu_pause_cond); |
3550 |
} |
3551 |
} |
3552 |
|
3553 |
static int qemu_cpu_exec(CPUState *env); |
3554 |
|
3555 |
static void *kvm_cpu_thread_fn(void *arg) |
3556 |
{ |
3557 |
CPUState *env = arg; |
3558 |
|
3559 |
block_io_signals(); |
3560 |
qemu_thread_self(env->thread); |
3561 |
if (kvm_enabled())
|
3562 |
kvm_init_vcpu(env); |
3563 |
|
3564 |
/* signal CPU creation */
|
3565 |
qemu_mutex_lock(&qemu_global_mutex); |
3566 |
env->created = 1;
|
3567 |
qemu_cond_signal(&qemu_cpu_cond); |
3568 |
|
3569 |
/* and wait for machine initialization */
|
3570 |
while (!qemu_system_ready)
|
3571 |
qemu_cond_timedwait(&qemu_system_cond, &qemu_global_mutex, 100);
|
3572 |
|
3573 |
while (1) { |
3574 |
if (cpu_can_run(env))
|
3575 |
qemu_cpu_exec(env); |
3576 |
qemu_wait_io_event(env); |
3577 |
} |
3578 |
|
3579 |
return NULL; |
3580 |
} |
3581 |
|
3582 |
static void tcg_cpu_exec(void); |
3583 |
|
3584 |
static void *tcg_cpu_thread_fn(void *arg) |
3585 |
{ |
3586 |
CPUState *env = arg; |
3587 |
|
3588 |
block_io_signals(); |
3589 |
qemu_thread_self(env->thread); |
3590 |
|
3591 |
/* signal CPU creation */
|
3592 |
qemu_mutex_lock(&qemu_global_mutex); |
3593 |
for (env = first_cpu; env != NULL; env = env->next_cpu) |
3594 |
env->created = 1;
|
3595 |
qemu_cond_signal(&qemu_cpu_cond); |
3596 |
|
3597 |
/* and wait for machine initialization */
|
3598 |
while (!qemu_system_ready)
|
3599 |
qemu_cond_timedwait(&qemu_system_cond, &qemu_global_mutex, 100);
|
3600 |
|
3601 |
while (1) { |
3602 |
tcg_cpu_exec(); |
3603 |
qemu_wait_io_event(cur_cpu); |
3604 |
} |
3605 |
|
3606 |
return NULL; |
3607 |
} |
3608 |
|
3609 |
void qemu_cpu_kick(void *_env) |
3610 |
{ |
3611 |
CPUState *env = _env; |
3612 |
qemu_cond_broadcast(env->halt_cond); |
3613 |
if (kvm_enabled())
|
3614 |
qemu_thread_signal(env->thread, SIGUSR1); |
3615 |
} |
3616 |
|
3617 |
int qemu_cpu_self(void *_env) |
3618 |
{ |
3619 |
CPUState *env = _env; |
3620 |
QemuThread this; |
3621 |
|
3622 |
qemu_thread_self(&this); |
3623 |
|
3624 |
return qemu_thread_equal(&this, env->thread);
|
3625 |
} |
3626 |
|
3627 |
static void cpu_signal(int sig) |
3628 |
{ |
3629 |
if (cpu_single_env)
|
3630 |
cpu_exit(cpu_single_env); |
3631 |
} |
3632 |
|
3633 |
static void block_io_signals(void) |
3634 |
{ |
3635 |
sigset_t set; |
3636 |
struct sigaction sigact;
|
3637 |
|
3638 |
sigemptyset(&set); |
3639 |
sigaddset(&set, SIGUSR2); |
3640 |
sigaddset(&set, SIGIO); |
3641 |
sigaddset(&set, SIGALRM); |
3642 |
pthread_sigmask(SIG_BLOCK, &set, NULL);
|
3643 |
|
3644 |
sigemptyset(&set); |
3645 |
sigaddset(&set, SIGUSR1); |
3646 |
pthread_sigmask(SIG_UNBLOCK, &set, NULL);
|
3647 |
|
3648 |
memset(&sigact, 0, sizeof(sigact)); |
3649 |
sigact.sa_handler = cpu_signal; |
3650 |
sigaction(SIGUSR1, &sigact, NULL);
|
3651 |
} |
3652 |
|
3653 |
static void unblock_io_signals(void) |
3654 |
{ |
3655 |
sigset_t set; |
3656 |
|
3657 |
sigemptyset(&set); |
3658 |
sigaddset(&set, SIGUSR2); |
3659 |
sigaddset(&set, SIGIO); |
3660 |
sigaddset(&set, SIGALRM); |
3661 |
pthread_sigmask(SIG_UNBLOCK, &set, NULL);
|
3662 |
|
3663 |
sigemptyset(&set); |
3664 |
sigaddset(&set, SIGUSR1); |
3665 |
pthread_sigmask(SIG_BLOCK, &set, NULL);
|
3666 |
} |
3667 |
|
3668 |
static void qemu_signal_lock(unsigned int msecs) |
3669 |
{ |
3670 |
qemu_mutex_lock(&qemu_fair_mutex); |
3671 |
|
3672 |
while (qemu_mutex_trylock(&qemu_global_mutex)) {
|
3673 |
qemu_thread_signal(tcg_cpu_thread, SIGUSR1); |
3674 |
if (!qemu_mutex_timedlock(&qemu_global_mutex, msecs))
|
3675 |
break;
|
3676 |
} |
3677 |
qemu_mutex_unlock(&qemu_fair_mutex); |
3678 |
} |
3679 |
|
3680 |
void qemu_mutex_lock_iothread(void) |
3681 |
{ |
3682 |
if (kvm_enabled()) {
|
3683 |
qemu_mutex_lock(&qemu_fair_mutex); |
3684 |
qemu_mutex_lock(&qemu_global_mutex); |
3685 |
qemu_mutex_unlock(&qemu_fair_mutex); |
3686 |
} else
|
3687 |
qemu_signal_lock(100);
|
3688 |
} |
3689 |
|
3690 |
void qemu_mutex_unlock_iothread(void) |
3691 |
{ |
3692 |
qemu_mutex_unlock(&qemu_global_mutex); |
3693 |
} |
3694 |
|
3695 |
static int all_vcpus_paused(void) |
3696 |
{ |
3697 |
CPUState *penv = first_cpu; |
3698 |
|
3699 |
while (penv) {
|
3700 |
if (!penv->stopped)
|
3701 |
return 0; |
3702 |
penv = (CPUState *)penv->next_cpu; |
3703 |
} |
3704 |
|
3705 |
return 1; |
3706 |
} |
3707 |
|
3708 |
static void pause_all_vcpus(void) |
3709 |
{ |
3710 |
CPUState *penv = first_cpu; |
3711 |
|
3712 |
while (penv) {
|
3713 |
penv->stop = 1;
|
3714 |
qemu_thread_signal(penv->thread, SIGUSR1); |
3715 |
qemu_cpu_kick(penv); |
3716 |
penv = (CPUState *)penv->next_cpu; |
3717 |
} |
3718 |
|
3719 |
while (!all_vcpus_paused()) {
|
3720 |
qemu_cond_timedwait(&qemu_pause_cond, &qemu_global_mutex, 100);
|
3721 |
penv = first_cpu; |
3722 |
while (penv) {
|
3723 |
qemu_thread_signal(penv->thread, SIGUSR1); |
3724 |
penv = (CPUState *)penv->next_cpu; |
3725 |
} |
3726 |
} |
3727 |
} |
3728 |
|
3729 |
static void resume_all_vcpus(void) |
3730 |
{ |
3731 |
CPUState *penv = first_cpu; |
3732 |
|
3733 |
while (penv) {
|
3734 |
penv->stop = 0;
|
3735 |
penv->stopped = 0;
|
3736 |
qemu_thread_signal(penv->thread, SIGUSR1); |
3737 |
qemu_cpu_kick(penv); |
3738 |
penv = (CPUState *)penv->next_cpu; |
3739 |
} |
3740 |
} |
3741 |
|
3742 |
static void tcg_init_vcpu(void *_env) |
3743 |
{ |
3744 |
CPUState *env = _env; |
3745 |
/* share a single thread for all cpus with TCG */
|
3746 |
if (!tcg_cpu_thread) {
|
3747 |
env->thread = qemu_mallocz(sizeof(QemuThread));
|
3748 |
env->halt_cond = qemu_mallocz(sizeof(QemuCond));
|
3749 |
qemu_cond_init(env->halt_cond); |
3750 |
qemu_thread_create(env->thread, tcg_cpu_thread_fn, env); |
3751 |
while (env->created == 0) |
3752 |
qemu_cond_timedwait(&qemu_cpu_cond, &qemu_global_mutex, 100);
|
3753 |
tcg_cpu_thread = env->thread; |
3754 |
tcg_halt_cond = env->halt_cond; |
3755 |
} else {
|
3756 |
env->thread = tcg_cpu_thread; |
3757 |
env->halt_cond = tcg_halt_cond; |
3758 |
} |
3759 |
} |
3760 |
|
3761 |
static void kvm_start_vcpu(CPUState *env) |
3762 |
{ |
3763 |
env->thread = qemu_mallocz(sizeof(QemuThread));
|
3764 |
env->halt_cond = qemu_mallocz(sizeof(QemuCond));
|
3765 |
qemu_cond_init(env->halt_cond); |
3766 |
qemu_thread_create(env->thread, kvm_cpu_thread_fn, env); |
3767 |
while (env->created == 0) |
3768 |
qemu_cond_timedwait(&qemu_cpu_cond, &qemu_global_mutex, 100);
|
3769 |
} |
3770 |
|
3771 |
void qemu_init_vcpu(void *_env) |
3772 |
{ |
3773 |
CPUState *env = _env; |
3774 |
|
3775 |
if (kvm_enabled())
|
3776 |
kvm_start_vcpu(env); |
3777 |
else
|
3778 |
tcg_init_vcpu(env); |
3779 |
env->nr_cores = smp_cores; |
3780 |
env->nr_threads = smp_threads; |
3781 |
} |
3782 |
|
3783 |
void qemu_notify_event(void) |
3784 |
{ |
3785 |
qemu_event_increment(); |
3786 |
} |
3787 |
|
3788 |
void vm_stop(int reason) |
3789 |
{ |
3790 |
QemuThread me; |
3791 |
qemu_thread_self(&me); |
3792 |
|
3793 |
if (!qemu_thread_equal(&me, &io_thread)) {
|
3794 |
qemu_system_vmstop_request(reason); |
3795 |
/*
|
3796 |
* FIXME: should not return to device code in case
|
3797 |
* vm_stop() has been requested.
|
3798 |
*/
|
3799 |
if (cpu_single_env) {
|
3800 |
cpu_exit(cpu_single_env); |
3801 |
cpu_single_env->stop = 1;
|
3802 |
} |
3803 |
return;
|
3804 |
} |
3805 |
do_vm_stop(reason); |
3806 |
} |
3807 |
|
3808 |
#endif
|
3809 |
|
3810 |
|
3811 |
#ifdef _WIN32
|
3812 |
static void host_main_loop_wait(int *timeout) |
3813 |
{ |
3814 |
int ret, ret2, i;
|
3815 |
PollingEntry *pe; |
3816 |
|
3817 |
|
3818 |
/* XXX: need to suppress polling by better using win32 events */
|
3819 |
ret = 0;
|
3820 |
for(pe = first_polling_entry; pe != NULL; pe = pe->next) { |
3821 |
ret |= pe->func(pe->opaque); |
3822 |
} |
3823 |
if (ret == 0) { |
3824 |
int err;
|
3825 |
WaitObjects *w = &wait_objects; |
3826 |
|
3827 |
ret = WaitForMultipleObjects(w->num, w->events, FALSE, *timeout); |
3828 |
if (WAIT_OBJECT_0 + 0 <= ret && ret <= WAIT_OBJECT_0 + w->num - 1) { |
3829 |
if (w->func[ret - WAIT_OBJECT_0])
|
3830 |
w->func[ret - WAIT_OBJECT_0](w->opaque[ret - WAIT_OBJECT_0]); |
3831 |
|
3832 |
/* Check for additional signaled events */
|
3833 |
for(i = (ret - WAIT_OBJECT_0 + 1); i < w->num; i++) { |
3834 |
|
3835 |
/* Check if event is signaled */
|
3836 |
ret2 = WaitForSingleObject(w->events[i], 0);
|
3837 |
if(ret2 == WAIT_OBJECT_0) {
|
3838 |
if (w->func[i])
|
3839 |
w->func[i](w->opaque[i]); |
3840 |
} else if (ret2 == WAIT_TIMEOUT) { |
3841 |
} else {
|
3842 |
err = GetLastError(); |
3843 |
fprintf(stderr, "WaitForSingleObject error %d %d\n", i, err);
|
3844 |
} |
3845 |
} |
3846 |
} else if (ret == WAIT_TIMEOUT) { |
3847 |
} else {
|
3848 |
err = GetLastError(); |
3849 |
fprintf(stderr, "WaitForMultipleObjects error %d %d\n", ret, err);
|
3850 |
} |
3851 |
} |
3852 |
|
3853 |
*timeout = 0;
|
3854 |
} |
3855 |
#else
|
3856 |
static void host_main_loop_wait(int *timeout) |
3857 |
{ |
3858 |
} |
3859 |
#endif
|
3860 |
|
3861 |
void main_loop_wait(int timeout) |
3862 |
{ |
3863 |
IOHandlerRecord *ioh; |
3864 |
fd_set rfds, wfds, xfds; |
3865 |
int ret, nfds;
|
3866 |
struct timeval tv;
|
3867 |
|
3868 |
qemu_bh_update_timeout(&timeout); |
3869 |
|
3870 |
host_main_loop_wait(&timeout); |
3871 |
|
3872 |
/* poll any events */
|
3873 |
/* XXX: separate device handlers from system ones */
|
3874 |
nfds = -1;
|
3875 |
FD_ZERO(&rfds); |
3876 |
FD_ZERO(&wfds); |
3877 |
FD_ZERO(&xfds); |
3878 |
for(ioh = first_io_handler; ioh != NULL; ioh = ioh->next) { |
3879 |
if (ioh->deleted)
|
3880 |
continue;
|
3881 |
if (ioh->fd_read &&
|
3882 |
(!ioh->fd_read_poll || |
3883 |
ioh->fd_read_poll(ioh->opaque) != 0)) {
|
3884 |
FD_SET(ioh->fd, &rfds); |
3885 |
if (ioh->fd > nfds)
|
3886 |
nfds = ioh->fd; |
3887 |
} |
3888 |
if (ioh->fd_write) {
|
3889 |
FD_SET(ioh->fd, &wfds); |
3890 |
if (ioh->fd > nfds)
|
3891 |
nfds = ioh->fd; |
3892 |
} |
3893 |
} |
3894 |
|
3895 |
tv.tv_sec = timeout / 1000;
|
3896 |
tv.tv_usec = (timeout % 1000) * 1000; |
3897 |
|
3898 |
slirp_select_fill(&nfds, &rfds, &wfds, &xfds); |
3899 |
|
3900 |
qemu_mutex_unlock_iothread(); |
3901 |
ret = select(nfds + 1, &rfds, &wfds, &xfds, &tv);
|
3902 |
qemu_mutex_lock_iothread(); |
3903 |
if (ret > 0) { |
3904 |
IOHandlerRecord **pioh; |
3905 |
|
3906 |
for(ioh = first_io_handler; ioh != NULL; ioh = ioh->next) { |
3907 |
if (!ioh->deleted && ioh->fd_read && FD_ISSET(ioh->fd, &rfds)) {
|
3908 |
ioh->fd_read(ioh->opaque); |
3909 |
} |
3910 |
if (!ioh->deleted && ioh->fd_write && FD_ISSET(ioh->fd, &wfds)) {
|
3911 |
ioh->fd_write(ioh->opaque); |
3912 |
} |
3913 |
} |
3914 |
|
3915 |
/* remove deleted IO handlers */
|
3916 |
pioh = &first_io_handler; |
3917 |
while (*pioh) {
|
3918 |
ioh = *pioh; |
3919 |
if (ioh->deleted) {
|
3920 |
*pioh = ioh->next; |
3921 |
qemu_free(ioh); |
3922 |
} else
|
3923 |
pioh = &ioh->next; |
3924 |
} |
3925 |
} |
3926 |
|
3927 |
slirp_select_poll(&rfds, &wfds, &xfds, (ret < 0));
|
3928 |
|
3929 |
/* rearm timer, if not periodic */
|
3930 |
if (alarm_timer->flags & ALARM_FLAG_EXPIRED) {
|
3931 |
alarm_timer->flags &= ~ALARM_FLAG_EXPIRED; |
3932 |
qemu_rearm_alarm_timer(alarm_timer); |
3933 |
} |
3934 |
|
3935 |
/* vm time timers */
|
3936 |
if (vm_running) {
|
3937 |
if (!cur_cpu || likely(!(cur_cpu->singlestep_enabled & SSTEP_NOTIMER)))
|
3938 |
qemu_run_timers(&active_timers[QEMU_CLOCK_VIRTUAL], |
3939 |
qemu_get_clock(vm_clock)); |
3940 |
} |
3941 |
|
3942 |
/* real time timers */
|
3943 |
qemu_run_timers(&active_timers[QEMU_CLOCK_REALTIME], |
3944 |
qemu_get_clock(rt_clock)); |
3945 |
|
3946 |
qemu_run_timers(&active_timers[QEMU_CLOCK_HOST], |
3947 |
qemu_get_clock(host_clock)); |
3948 |
|
3949 |
/* Check bottom-halves last in case any of the earlier events triggered
|
3950 |
them. */
|
3951 |
qemu_bh_poll(); |
3952 |
|
3953 |
} |
3954 |
|
3955 |
static int qemu_cpu_exec(CPUState *env) |
3956 |
{ |
3957 |
int ret;
|
3958 |
#ifdef CONFIG_PROFILER
|
3959 |
int64_t ti; |
3960 |
#endif
|
3961 |
|
3962 |
#ifdef CONFIG_PROFILER
|
3963 |
ti = profile_getclock(); |
3964 |
#endif
|
3965 |
if (use_icount) {
|
3966 |
int64_t count; |
3967 |
int decr;
|
3968 |
qemu_icount -= (env->icount_decr.u16.low + env->icount_extra); |
3969 |
env->icount_decr.u16.low = 0;
|
3970 |
env->icount_extra = 0;
|
3971 |
count = qemu_next_deadline(); |
3972 |
count = (count + (1 << icount_time_shift) - 1) |
3973 |
>> icount_time_shift; |
3974 |
qemu_icount += count; |
3975 |
decr = (count > 0xffff) ? 0xffff : count; |
3976 |
count -= decr; |
3977 |
env->icount_decr.u16.low = decr; |
3978 |
env->icount_extra = count; |
3979 |
} |
3980 |
ret = cpu_exec(env); |
3981 |
#ifdef CONFIG_PROFILER
|
3982 |
qemu_time += profile_getclock() - ti; |
3983 |
#endif
|
3984 |
if (use_icount) {
|
3985 |
/* Fold pending instructions back into the
|
3986 |
instruction counter, and clear the interrupt flag. */
|
3987 |
qemu_icount -= (env->icount_decr.u16.low |
3988 |
+ env->icount_extra); |
3989 |
env->icount_decr.u32 = 0;
|
3990 |
env->icount_extra = 0;
|
3991 |
} |
3992 |
return ret;
|
3993 |
} |
3994 |
|
3995 |
static void tcg_cpu_exec(void) |
3996 |
{ |
3997 |
int ret = 0; |
3998 |
|
3999 |
if (next_cpu == NULL) |
4000 |
next_cpu = first_cpu; |
4001 |
for (; next_cpu != NULL; next_cpu = next_cpu->next_cpu) { |
4002 |
CPUState *env = cur_cpu = next_cpu; |
4003 |
|
4004 |
if (!vm_running)
|
4005 |
break;
|
4006 |
if (timer_alarm_pending) {
|
4007 |
timer_alarm_pending = 0;
|
4008 |
break;
|
4009 |
} |
4010 |
if (cpu_can_run(env))
|
4011 |
ret = qemu_cpu_exec(env); |
4012 |
if (ret == EXCP_DEBUG) {
|
4013 |
gdb_set_stop_cpu(env); |
4014 |
debug_requested = 1;
|
4015 |
break;
|
4016 |
} |
4017 |
} |
4018 |
} |
4019 |
|
4020 |
static int cpu_has_work(CPUState *env) |
4021 |
{ |
4022 |
if (env->stop)
|
4023 |
return 1; |
4024 |
if (env->stopped)
|
4025 |
return 0; |
4026 |
if (!env->halted)
|
4027 |
return 1; |
4028 |
if (qemu_cpu_has_work(env))
|
4029 |
return 1; |
4030 |
return 0; |
4031 |
} |
4032 |
|
4033 |
static int tcg_has_work(void) |
4034 |
{ |
4035 |
CPUState *env; |
4036 |
|
4037 |
for (env = first_cpu; env != NULL; env = env->next_cpu) |
4038 |
if (cpu_has_work(env))
|
4039 |
return 1; |
4040 |
return 0; |
4041 |
} |
4042 |
|
4043 |
static int qemu_calculate_timeout(void) |
4044 |
{ |
4045 |
#ifndef CONFIG_IOTHREAD
|
4046 |
int timeout;
|
4047 |
|
4048 |
if (!vm_running)
|
4049 |
timeout = 5000;
|
4050 |
else if (tcg_has_work()) |
4051 |
timeout = 0;
|
4052 |
else if (!use_icount) |
4053 |
timeout = 5000;
|
4054 |
else {
|
4055 |
/* XXX: use timeout computed from timers */
|
4056 |
int64_t add; |
4057 |
int64_t delta; |
4058 |
/* Advance virtual time to the next event. */
|
4059 |
if (use_icount == 1) { |
4060 |
/* When not using an adaptive execution frequency
|
4061 |
we tend to get badly out of sync with real time,
|
4062 |
so just delay for a reasonable amount of time. */
|
4063 |
delta = 0;
|
4064 |
} else {
|
4065 |
delta = cpu_get_icount() - cpu_get_clock(); |
4066 |
} |
4067 |
if (delta > 0) { |
4068 |
/* If virtual time is ahead of real time then just
|
4069 |
wait for IO. */
|
4070 |
timeout = (delta / 1000000) + 1; |
4071 |
} else {
|
4072 |
/* Wait for either IO to occur or the next
|
4073 |
timer event. */
|
4074 |
add = qemu_next_deadline(); |
4075 |
/* We advance the timer before checking for IO.
|
4076 |
Limit the amount we advance so that early IO
|
4077 |
activity won't get the guest too far ahead. */
|
4078 |
if (add > 10000000) |
4079 |
add = 10000000;
|
4080 |
delta += add; |
4081 |
add = (add + (1 << icount_time_shift) - 1) |
4082 |
>> icount_time_shift; |
4083 |
qemu_icount += add; |
4084 |
timeout = delta / 1000000;
|
4085 |
if (timeout < 0) |
4086 |
timeout = 0;
|
4087 |
} |
4088 |
} |
4089 |
|
4090 |
return timeout;
|
4091 |
#else /* CONFIG_IOTHREAD */ |
4092 |
return 1000; |
4093 |
#endif
|
4094 |
} |
4095 |
|
4096 |
static int vm_can_run(void) |
4097 |
{ |
4098 |
if (powerdown_requested)
|
4099 |
return 0; |
4100 |
if (reset_requested)
|
4101 |
return 0; |
4102 |
if (shutdown_requested)
|
4103 |
return 0; |
4104 |
if (debug_requested)
|
4105 |
return 0; |
4106 |
return 1; |
4107 |
} |
4108 |
|
4109 |
qemu_irq qemu_system_powerdown; |
4110 |
|
4111 |
static void main_loop(void) |
4112 |
{ |
4113 |
int r;
|
4114 |
|
4115 |
#ifdef CONFIG_IOTHREAD
|
4116 |
qemu_system_ready = 1;
|
4117 |
qemu_cond_broadcast(&qemu_system_cond); |
4118 |
#endif
|
4119 |
|
4120 |
for (;;) {
|
4121 |
do {
|
4122 |
#ifdef CONFIG_PROFILER
|
4123 |
int64_t ti; |
4124 |
#endif
|
4125 |
#ifndef CONFIG_IOTHREAD
|
4126 |
tcg_cpu_exec(); |
4127 |
#endif
|
4128 |
#ifdef CONFIG_PROFILER
|
4129 |
ti = profile_getclock(); |
4130 |
#endif
|
4131 |
main_loop_wait(qemu_calculate_timeout()); |
4132 |
#ifdef CONFIG_PROFILER
|
4133 |
dev_time += profile_getclock() - ti; |
4134 |
#endif
|
4135 |
} while (vm_can_run());
|
4136 |
|
4137 |
if (qemu_debug_requested()) {
|
4138 |
monitor_protocol_event(QEVENT_DEBUG, NULL);
|
4139 |
vm_stop(EXCP_DEBUG); |
4140 |
} |
4141 |
if (qemu_shutdown_requested()) {
|
4142 |
monitor_protocol_event(QEVENT_SHUTDOWN, NULL);
|
4143 |
if (no_shutdown) {
|
4144 |
vm_stop(0);
|
4145 |
no_shutdown = 0;
|
4146 |
} else
|
4147 |
break;
|
4148 |
} |
4149 |
if (qemu_reset_requested()) {
|
4150 |
monitor_protocol_event(QEVENT_RESET, NULL);
|
4151 |
pause_all_vcpus(); |
4152 |
qemu_system_reset(); |
4153 |
resume_all_vcpus(); |
4154 |
} |
4155 |
if (qemu_powerdown_requested()) {
|
4156 |
monitor_protocol_event(QEVENT_POWERDOWN, NULL);
|
4157 |
qemu_irq_raise(qemu_system_powerdown); |
4158 |
} |
4159 |
if ((r = qemu_vmstop_requested())) {
|
4160 |
monitor_protocol_event(QEVENT_STOP, NULL);
|
4161 |
vm_stop(r); |
4162 |
} |
4163 |
} |
4164 |
pause_all_vcpus(); |
4165 |
} |
4166 |
|
4167 |
static void version(void) |
4168 |
{ |
4169 |
printf("QEMU PC emulator version " QEMU_VERSION QEMU_PKGVERSION ", Copyright (c) 2003-2008 Fabrice Bellard\n"); |
4170 |
} |
4171 |
|
4172 |
static void help(int exitcode) |
4173 |
{ |
4174 |
version(); |
4175 |
printf("usage: %s [options] [disk_image]\n"
|
4176 |
"\n"
|
4177 |
"'disk_image' is a raw hard image image for IDE hard disk 0\n"
|
4178 |
"\n"
|
4179 |
#define DEF(option, opt_arg, opt_enum, opt_help) \
|
4180 |
opt_help |
4181 |
#define DEFHEADING(text) stringify(text) "\n" |
4182 |
#include "qemu-options.h" |
4183 |
#undef DEF
|
4184 |
#undef DEFHEADING
|
4185 |
#undef GEN_DOCS
|
4186 |
"\n"
|
4187 |
"During emulation, the following keys are useful:\n"
|
4188 |
"ctrl-alt-f toggle full screen\n"
|
4189 |
"ctrl-alt-n switch to virtual console 'n'\n"
|
4190 |
"ctrl-alt toggle mouse and keyboard grab\n"
|
4191 |
"\n"
|
4192 |
"When using -nographic, press 'ctrl-a h' to get some help.\n"
|
4193 |
, |
4194 |
"qemu",
|
4195 |
DEFAULT_RAM_SIZE, |
4196 |
#ifndef _WIN32
|
4197 |
DEFAULT_NETWORK_SCRIPT, |
4198 |
DEFAULT_NETWORK_DOWN_SCRIPT, |
4199 |
#endif
|
4200 |
DEFAULT_GDBSTUB_PORT, |
4201 |
"/tmp/qemu.log");
|
4202 |
exit(exitcode); |
4203 |
} |
4204 |
|
4205 |
#define HAS_ARG 0x0001 |
4206 |
|
4207 |
enum {
|
4208 |
#define DEF(option, opt_arg, opt_enum, opt_help) \
|
4209 |
opt_enum, |
4210 |
#define DEFHEADING(text)
|
4211 |
#include "qemu-options.h" |
4212 |
#undef DEF
|
4213 |
#undef DEFHEADING
|
4214 |
#undef GEN_DOCS
|
4215 |
}; |
4216 |
|
4217 |
typedef struct QEMUOption { |
4218 |
const char *name; |
4219 |
int flags;
|
4220 |
int index;
|
4221 |
} QEMUOption; |
4222 |
|
4223 |
static const QEMUOption qemu_options[] = { |
4224 |
{ "h", 0, QEMU_OPTION_h }, |
4225 |
#define DEF(option, opt_arg, opt_enum, opt_help) \
|
4226 |
{ option, opt_arg, opt_enum }, |
4227 |
#define DEFHEADING(text)
|
4228 |
#include "qemu-options.h" |
4229 |
#undef DEF
|
4230 |
#undef DEFHEADING
|
4231 |
#undef GEN_DOCS
|
4232 |
{ NULL },
|
4233 |
}; |
4234 |
|
4235 |
#ifdef HAS_AUDIO
|
4236 |
struct soundhw soundhw[] = {
|
4237 |
#ifdef HAS_AUDIO_CHOICE
|
4238 |
#if defined(TARGET_I386) || defined(TARGET_MIPS)
|
4239 |
{ |
4240 |
"pcspk",
|
4241 |
"PC speaker",
|
4242 |
0,
|
4243 |
1,
|
4244 |
{ .init_isa = pcspk_audio_init } |
4245 |
}, |
4246 |
#endif
|
4247 |
|
4248 |
#ifdef CONFIG_SB16
|
4249 |
{ |
4250 |
"sb16",
|
4251 |
"Creative Sound Blaster 16",
|
4252 |
0,
|
4253 |
1,
|
4254 |
{ .init_isa = SB16_init } |
4255 |
}, |
4256 |
#endif
|
4257 |
|
4258 |
#ifdef CONFIG_CS4231A
|
4259 |
{ |
4260 |
"cs4231a",
|
4261 |
"CS4231A",
|
4262 |
0,
|
4263 |
1,
|
4264 |
{ .init_isa = cs4231a_init } |
4265 |
}, |
4266 |
#endif
|
4267 |
|
4268 |
#ifdef CONFIG_ADLIB
|
4269 |
{ |
4270 |
"adlib",
|
4271 |
#ifdef HAS_YMF262
|
4272 |
"Yamaha YMF262 (OPL3)",
|
4273 |
#else
|
4274 |
"Yamaha YM3812 (OPL2)",
|
4275 |
#endif
|
4276 |
0,
|
4277 |
1,
|
4278 |
{ .init_isa = Adlib_init } |
4279 |
}, |
4280 |
#endif
|
4281 |
|
4282 |
#ifdef CONFIG_GUS
|
4283 |
{ |
4284 |
"gus",
|
4285 |
"Gravis Ultrasound GF1",
|
4286 |
0,
|
4287 |
1,
|
4288 |
{ .init_isa = GUS_init } |
4289 |
}, |
4290 |
#endif
|
4291 |
|
4292 |
#ifdef CONFIG_AC97
|
4293 |
{ |
4294 |
"ac97",
|
4295 |
"Intel 82801AA AC97 Audio",
|
4296 |
0,
|
4297 |
0,
|
4298 |
{ .init_pci = ac97_init } |
4299 |
}, |
4300 |
#endif
|
4301 |
|
4302 |
#ifdef CONFIG_ES1370
|
4303 |
{ |
4304 |
"es1370",
|
4305 |
"ENSONIQ AudioPCI ES1370",
|
4306 |
0,
|
4307 |
0,
|
4308 |
{ .init_pci = es1370_init } |
4309 |
}, |
4310 |
#endif
|
4311 |
|
4312 |
#endif /* HAS_AUDIO_CHOICE */ |
4313 |
|
4314 |
{ NULL, NULL, 0, 0, { NULL } } |
4315 |
}; |
4316 |
|
4317 |
static void select_soundhw (const char *optarg) |
4318 |
{ |
4319 |
struct soundhw *c;
|
4320 |
|
4321 |
if (*optarg == '?') { |
4322 |
show_valid_cards:
|
4323 |
|
4324 |
printf ("Valid sound card names (comma separated):\n");
|
4325 |
for (c = soundhw; c->name; ++c) {
|
4326 |
printf ("%-11s %s\n", c->name, c->descr);
|
4327 |
} |
4328 |
printf ("\n-soundhw all will enable all of the above\n");
|
4329 |
exit (*optarg != '?');
|
4330 |
} |
4331 |
else {
|
4332 |
size_t l; |
4333 |
const char *p; |
4334 |
char *e;
|
4335 |
int bad_card = 0; |
4336 |
|
4337 |
if (!strcmp (optarg, "all")) { |
4338 |
for (c = soundhw; c->name; ++c) {
|
4339 |
c->enabled = 1;
|
4340 |
} |
4341 |
return;
|
4342 |
} |
4343 |
|
4344 |
p = optarg; |
4345 |
while (*p) {
|
4346 |
e = strchr (p, ',');
|
4347 |
l = !e ? strlen (p) : (size_t) (e - p); |
4348 |
|
4349 |
for (c = soundhw; c->name; ++c) {
|
4350 |
if (!strncmp (c->name, p, l) && !c->name[l]) {
|
4351 |
c->enabled = 1;
|
4352 |
break;
|
4353 |
} |
4354 |
} |
4355 |
|
4356 |
if (!c->name) {
|
4357 |
if (l > 80) { |
4358 |
fprintf (stderr, |
4359 |
"Unknown sound card name (too big to show)\n");
|
4360 |
} |
4361 |
else {
|
4362 |
fprintf (stderr, "Unknown sound card name `%.*s'\n",
|
4363 |
(int) l, p);
|
4364 |
} |
4365 |
bad_card = 1;
|
4366 |
} |
4367 |
p += l + (e != NULL);
|
4368 |
} |
4369 |
|
4370 |
if (bad_card)
|
4371 |
goto show_valid_cards;
|
4372 |
} |
4373 |
} |
4374 |
#endif
|
4375 |
|
4376 |
static void select_vgahw (const char *p) |
4377 |
{ |
4378 |
const char *opts; |
4379 |
|
4380 |
default_vga = 0;
|
4381 |
vga_interface_type = VGA_NONE; |
4382 |
if (strstart(p, "std", &opts)) { |
4383 |
vga_interface_type = VGA_STD; |
4384 |
} else if (strstart(p, "cirrus", &opts)) { |
4385 |
vga_interface_type = VGA_CIRRUS; |
4386 |
} else if (strstart(p, "vmware", &opts)) { |
4387 |
vga_interface_type = VGA_VMWARE; |
4388 |
} else if (strstart(p, "xenfb", &opts)) { |
4389 |
vga_interface_type = VGA_XENFB; |
4390 |
} else if (!strstart(p, "none", &opts)) { |
4391 |
invalid_vga:
|
4392 |
fprintf(stderr, "Unknown vga type: %s\n", p);
|
4393 |
exit(1);
|
4394 |
} |
4395 |
while (*opts) {
|
4396 |
const char *nextopt; |
4397 |
|
4398 |
if (strstart(opts, ",retrace=", &nextopt)) { |
4399 |
opts = nextopt; |
4400 |
if (strstart(opts, "dumb", &nextopt)) |
4401 |
vga_retrace_method = VGA_RETRACE_DUMB; |
4402 |
else if (strstart(opts, "precise", &nextopt)) |
4403 |
vga_retrace_method = VGA_RETRACE_PRECISE; |
4404 |
else goto invalid_vga; |
4405 |
} else goto invalid_vga; |
4406 |
opts = nextopt; |
4407 |
} |
4408 |
} |
4409 |
|
4410 |
#ifdef TARGET_I386
|
4411 |
static int balloon_parse(const char *arg) |
4412 |
{ |
4413 |
QemuOpts *opts; |
4414 |
|
4415 |
if (strcmp(arg, "none") == 0) { |
4416 |
return 0; |
4417 |
} |
4418 |
|
4419 |
if (!strncmp(arg, "virtio", 6)) { |
4420 |
if (arg[6] == ',') { |
4421 |
/* have params -> parse them */
|
4422 |
opts = qemu_opts_parse(&qemu_device_opts, arg+7, NULL); |
4423 |
if (!opts)
|
4424 |
return -1; |
4425 |
} else {
|
4426 |
/* create empty opts */
|
4427 |
opts = qemu_opts_create(&qemu_device_opts, NULL, 0); |
4428 |
} |
4429 |
qemu_opt_set(opts, "driver", "virtio-balloon-pci"); |
4430 |
return 0; |
4431 |
} |
4432 |
|
4433 |
return -1; |
4434 |
} |
4435 |
#endif
|
4436 |
|
4437 |
#ifdef _WIN32
|
4438 |
static BOOL WINAPI qemu_ctrl_handler(DWORD type)
|
4439 |
{ |
4440 |
exit(STATUS_CONTROL_C_EXIT); |
4441 |
return TRUE;
|
4442 |
} |
4443 |
#endif
|
4444 |
|
4445 |
int qemu_uuid_parse(const char *str, uint8_t *uuid) |
4446 |
{ |
4447 |
int ret;
|
4448 |
|
4449 |
if(strlen(str) != 36) |
4450 |
return -1; |
4451 |
|
4452 |
ret = sscanf(str, UUID_FMT, &uuid[0], &uuid[1], &uuid[2], &uuid[3], |
4453 |
&uuid[4], &uuid[5], &uuid[6], &uuid[7], &uuid[8], &uuid[9], |
4454 |
&uuid[10], &uuid[11], &uuid[12], &uuid[13], &uuid[14], &uuid[15]); |
4455 |
|
4456 |
if(ret != 16) |
4457 |
return -1; |
4458 |
|
4459 |
#ifdef TARGET_I386
|
4460 |
smbios_add_field(1, offsetof(struct smbios_type_1, uuid), 16, uuid); |
4461 |
#endif
|
4462 |
|
4463 |
return 0; |
4464 |
} |
4465 |
|
4466 |
#ifndef _WIN32
|
4467 |
|
4468 |
static void termsig_handler(int signal) |
4469 |
{ |
4470 |
qemu_system_shutdown_request(); |
4471 |
} |
4472 |
|
4473 |
static void sigchld_handler(int signal) |
4474 |
{ |
4475 |
waitpid(-1, NULL, WNOHANG); |
4476 |
} |
4477 |
|
4478 |
static void sighandler_setup(void) |
4479 |
{ |
4480 |
struct sigaction act;
|
4481 |
|
4482 |
memset(&act, 0, sizeof(act)); |
4483 |
act.sa_handler = termsig_handler; |
4484 |
sigaction(SIGINT, &act, NULL);
|
4485 |
sigaction(SIGHUP, &act, NULL);
|
4486 |
sigaction(SIGTERM, &act, NULL);
|
4487 |
|
4488 |
act.sa_handler = sigchld_handler; |
4489 |
act.sa_flags = SA_NOCLDSTOP; |
4490 |
sigaction(SIGCHLD, &act, NULL);
|
4491 |
} |
4492 |
|
4493 |
#endif
|
4494 |
|
4495 |
#ifdef _WIN32
|
4496 |
/* Look for support files in the same directory as the executable. */
|
4497 |
static char *find_datadir(const char *argv0) |
4498 |
{ |
4499 |
char *p;
|
4500 |
char buf[MAX_PATH];
|
4501 |
DWORD len; |
4502 |
|
4503 |
len = GetModuleFileName(NULL, buf, sizeof(buf) - 1); |
4504 |
if (len == 0) { |
4505 |
return NULL; |
4506 |
} |
4507 |
|
4508 |
buf[len] = 0;
|
4509 |
p = buf + len - 1;
|
4510 |
while (p != buf && *p != '\\') |
4511 |
p--; |
4512 |
*p = 0;
|
4513 |
if (access(buf, R_OK) == 0) { |
4514 |
return qemu_strdup(buf);
|
4515 |
} |
4516 |
return NULL; |
4517 |
} |
4518 |
#else /* !_WIN32 */ |
4519 |
|
4520 |
/* Find a likely location for support files using the location of the binary.
|
4521 |
For installed binaries this will be "$bindir/../share/qemu". When
|
4522 |
running from the build tree this will be "$bindir/../pc-bios". */
|
4523 |
#define SHARE_SUFFIX "/share/qemu" |
4524 |
#define BUILD_SUFFIX "/pc-bios" |
4525 |
static char *find_datadir(const char *argv0) |
4526 |
{ |
4527 |
char *dir;
|
4528 |
char *p = NULL; |
4529 |
char *res;
|
4530 |
char buf[PATH_MAX];
|
4531 |
size_t max_len; |
4532 |
|
4533 |
#if defined(__linux__)
|
4534 |
{ |
4535 |
int len;
|
4536 |
len = readlink("/proc/self/exe", buf, sizeof(buf) - 1); |
4537 |
if (len > 0) { |
4538 |
buf[len] = 0;
|
4539 |
p = buf; |
4540 |
} |
4541 |
} |
4542 |
#elif defined(__FreeBSD__)
|
4543 |
{ |
4544 |
int len;
|
4545 |
len = readlink("/proc/curproc/file", buf, sizeof(buf) - 1); |
4546 |
if (len > 0) { |
4547 |
buf[len] = 0;
|
4548 |
p = buf; |
4549 |
} |
4550 |
} |
4551 |
#endif
|
4552 |
/* If we don't have any way of figuring out the actual executable
|
4553 |
location then try argv[0]. */
|
4554 |
if (!p) {
|
4555 |
p = realpath(argv0, buf); |
4556 |
if (!p) {
|
4557 |
return NULL; |
4558 |
} |
4559 |
} |
4560 |
dir = dirname(p); |
4561 |
dir = dirname(dir); |
4562 |
|
4563 |
max_len = strlen(dir) + |
4564 |
MAX(strlen(SHARE_SUFFIX), strlen(BUILD_SUFFIX)) + 1;
|
4565 |
res = qemu_mallocz(max_len); |
4566 |
snprintf(res, max_len, "%s%s", dir, SHARE_SUFFIX);
|
4567 |
if (access(res, R_OK)) {
|
4568 |
snprintf(res, max_len, "%s%s", dir, BUILD_SUFFIX);
|
4569 |
if (access(res, R_OK)) {
|
4570 |
qemu_free(res); |
4571 |
res = NULL;
|
4572 |
} |
4573 |
} |
4574 |
|
4575 |
return res;
|
4576 |
} |
4577 |
#undef SHARE_SUFFIX
|
4578 |
#undef BUILD_SUFFIX
|
4579 |
#endif
|
4580 |
|
4581 |
char *qemu_find_file(int type, const char *name) |
4582 |
{ |
4583 |
int len;
|
4584 |
const char *subdir; |
4585 |
char *buf;
|
4586 |
|
4587 |
/* If name contains path separators then try it as a straight path. */
|
4588 |
if ((strchr(name, '/') || strchr(name, '\\')) |
4589 |
&& access(name, R_OK) == 0) {
|
4590 |
return qemu_strdup(name);
|
4591 |
} |
4592 |
switch (type) {
|
4593 |
case QEMU_FILE_TYPE_BIOS:
|
4594 |
subdir = "";
|
4595 |
break;
|
4596 |
case QEMU_FILE_TYPE_KEYMAP:
|
4597 |
subdir = "keymaps/";
|
4598 |
break;
|
4599 |
default:
|
4600 |
abort(); |
4601 |
} |
4602 |
len = strlen(data_dir) + strlen(name) + strlen(subdir) + 2;
|
4603 |
buf = qemu_mallocz(len); |
4604 |
snprintf(buf, len, "%s/%s%s", data_dir, subdir, name);
|
4605 |
if (access(buf, R_OK)) {
|
4606 |
qemu_free(buf); |
4607 |
return NULL; |
4608 |
} |
4609 |
return buf;
|
4610 |
} |
4611 |
|
4612 |
static int device_init_func(QemuOpts *opts, void *opaque) |
4613 |
{ |
4614 |
DeviceState *dev; |
4615 |
|
4616 |
dev = qdev_device_add(opts); |
4617 |
if (!dev)
|
4618 |
return -1; |
4619 |
return 0; |
4620 |
} |
4621 |
|
4622 |
static int chardev_init_func(QemuOpts *opts, void *opaque) |
4623 |
{ |
4624 |
CharDriverState *chr; |
4625 |
|
4626 |
chr = qemu_chr_open_opts(opts, NULL);
|
4627 |
if (!chr)
|
4628 |
return -1; |
4629 |
return 0; |
4630 |
} |
4631 |
|
4632 |
struct device_config {
|
4633 |
enum {
|
4634 |
DEV_USB, /* -usbdevice */
|
4635 |
DEV_BT, /* -bt */
|
4636 |
DEV_SERIAL, /* -serial */
|
4637 |
DEV_PARALLEL, /* -parallel */
|
4638 |
DEV_MONITOR, /* -monitor */
|
4639 |
} type; |
4640 |
const char *cmdline; |
4641 |
QTAILQ_ENTRY(device_config) next; |
4642 |
}; |
4643 |
QTAILQ_HEAD(, device_config) device_configs = QTAILQ_HEAD_INITIALIZER(device_configs); |
4644 |
|
4645 |
static void add_device_config(int type, const char *cmdline) |
4646 |
{ |
4647 |
struct device_config *conf;
|
4648 |
|
4649 |
conf = qemu_mallocz(sizeof(*conf));
|
4650 |
conf->type = type; |
4651 |
conf->cmdline = cmdline; |
4652 |
QTAILQ_INSERT_TAIL(&device_configs, conf, next); |
4653 |
} |
4654 |
|
4655 |
static int foreach_device_config(int type, int (*func)(const char *cmdline)) |
4656 |
{ |
4657 |
struct device_config *conf;
|
4658 |
int rc;
|
4659 |
|
4660 |
QTAILQ_FOREACH(conf, &device_configs, next) { |
4661 |
if (conf->type != type)
|
4662 |
continue;
|
4663 |
rc = func(conf->cmdline); |
4664 |
if (0 != rc) |
4665 |
return rc;
|
4666 |
} |
4667 |
return 0; |
4668 |
} |
4669 |
|
4670 |
static int serial_parse(const char *devname) |
4671 |
{ |
4672 |
static int index = 0; |
4673 |
char label[32]; |
4674 |
|
4675 |
if (strcmp(devname, "none") == 0) |
4676 |
return 0; |
4677 |
if (index == MAX_SERIAL_PORTS) {
|
4678 |
fprintf(stderr, "qemu: too many serial ports\n");
|
4679 |
exit(1);
|
4680 |
} |
4681 |
snprintf(label, sizeof(label), "serial%d", index); |
4682 |
serial_hds[index] = qemu_chr_open(label, devname, NULL);
|
4683 |
if (!serial_hds[index]) {
|
4684 |
fprintf(stderr, "qemu: could not open serial device '%s': %s\n",
|
4685 |
devname, strerror(errno)); |
4686 |
return -1; |
4687 |
} |
4688 |
index++; |
4689 |
return 0; |
4690 |
} |
4691 |
|
4692 |
static int parallel_parse(const char *devname) |
4693 |
{ |
4694 |
static int index = 0; |
4695 |
char label[32]; |
4696 |
|
4697 |
if (strcmp(devname, "none") == 0) |
4698 |
return 0; |
4699 |
if (index == MAX_PARALLEL_PORTS) {
|
4700 |
fprintf(stderr, "qemu: too many parallel ports\n");
|
4701 |
exit(1);
|
4702 |
} |
4703 |
snprintf(label, sizeof(label), "parallel%d", index); |
4704 |
parallel_hds[index] = qemu_chr_open(label, devname, NULL);
|
4705 |
if (!parallel_hds[index]) {
|
4706 |
fprintf(stderr, "qemu: could not open parallel device '%s': %s\n",
|
4707 |
devname, strerror(errno)); |
4708 |
return -1; |
4709 |
} |
4710 |
index++; |
4711 |
return 0; |
4712 |
} |
4713 |
|
4714 |
static int monitor_parse(const char *devname) |
4715 |
{ |
4716 |
static int index = 0; |
4717 |
char label[32]; |
4718 |
|
4719 |
if (strcmp(devname, "none") == 0) |
4720 |
return 0; |
4721 |
if (index == MAX_MONITOR_DEVICES) {
|
4722 |
fprintf(stderr, "qemu: too many monitor devices\n");
|
4723 |
exit(1);
|
4724 |
} |
4725 |
if (index == 0) { |
4726 |
snprintf(label, sizeof(label), "monitor"); |
4727 |
} else {
|
4728 |
snprintf(label, sizeof(label), "monitor%d", index); |
4729 |
} |
4730 |
monitor_hds[index] = qemu_chr_open(label, devname, NULL);
|
4731 |
if (!monitor_hds[index]) {
|
4732 |
fprintf(stderr, "qemu: could not open monitor device '%s'\n",
|
4733 |
devname); |
4734 |
return -1; |
4735 |
} |
4736 |
index++; |
4737 |
return 0; |
4738 |
} |
4739 |
|
4740 |
int main(int argc, char **argv, char **envp) |
4741 |
{ |
4742 |
const char *gdbstub_dev = NULL; |
4743 |
uint32_t boot_devices_bitmap = 0;
|
4744 |
int i;
|
4745 |
int snapshot, linux_boot, net_boot;
|
4746 |
const char *initrd_filename; |
4747 |
const char *kernel_filename, *kernel_cmdline; |
4748 |
char boot_devices[33] = "cad"; /* default to HD->floppy->CD-ROM */ |
4749 |
DisplayState *ds; |
4750 |
DisplayChangeListener *dcl; |
4751 |
int cyls, heads, secs, translation;
|
4752 |
QemuOpts *hda_opts = NULL, *opts;
|
4753 |
int optind;
|
4754 |
const char *r, *optarg; |
4755 |
const char *virtio_consoles[MAX_VIRTIO_CONSOLES]; |
4756 |
int virtio_console_index;
|
4757 |
const char *loadvm = NULL; |
4758 |
QEMUMachine *machine; |
4759 |
const char *cpu_model; |
4760 |
#ifndef _WIN32
|
4761 |
int fds[2]; |
4762 |
#endif
|
4763 |
int tb_size;
|
4764 |
const char *pid_file = NULL; |
4765 |
const char *incoming = NULL; |
4766 |
#ifndef _WIN32
|
4767 |
int fd = 0; |
4768 |
struct passwd *pwd = NULL; |
4769 |
const char *chroot_dir = NULL; |
4770 |
const char *run_as = NULL; |
4771 |
#endif
|
4772 |
CPUState *env; |
4773 |
int show_vnc_port = 0; |
4774 |
|
4775 |
init_clocks(); |
4776 |
|
4777 |
qemu_errors_to_file(stderr); |
4778 |
qemu_cache_utils_init(envp); |
4779 |
|
4780 |
QLIST_INIT (&vm_change_state_head); |
4781 |
#ifndef _WIN32
|
4782 |
{ |
4783 |
struct sigaction act;
|
4784 |
sigfillset(&act.sa_mask); |
4785 |
act.sa_flags = 0;
|
4786 |
act.sa_handler = SIG_IGN; |
4787 |
sigaction(SIGPIPE, &act, NULL);
|
4788 |
} |
4789 |
#else
|
4790 |
SetConsoleCtrlHandler(qemu_ctrl_handler, TRUE); |
4791 |
/* Note: cpu_interrupt() is currently not SMP safe, so we force
|
4792 |
QEMU to run on a single CPU */
|
4793 |
{ |
4794 |
HANDLE h; |
4795 |
DWORD mask, smask; |
4796 |
int i;
|
4797 |
h = GetCurrentProcess(); |
4798 |
if (GetProcessAffinityMask(h, &mask, &smask)) {
|
4799 |
for(i = 0; i < 32; i++) { |
4800 |
if (mask & (1 << i)) |
4801 |
break;
|
4802 |
} |
4803 |
if (i != 32) { |
4804 |
mask = 1 << i;
|
4805 |
SetProcessAffinityMask(h, mask); |
4806 |
} |
4807 |
} |
4808 |
} |
4809 |
#endif
|
4810 |
|
4811 |
module_call_init(MODULE_INIT_MACHINE); |
4812 |
machine = find_default_machine(); |
4813 |
cpu_model = NULL;
|
4814 |
initrd_filename = NULL;
|
4815 |
ram_size = 0;
|
4816 |
snapshot = 0;
|
4817 |
kernel_filename = NULL;
|
4818 |
kernel_cmdline = "";
|
4819 |
cyls = heads = secs = 0;
|
4820 |
translation = BIOS_ATA_TRANSLATION_AUTO; |
4821 |
|
4822 |
for(i = 0; i < MAX_VIRTIO_CONSOLES; i++) |
4823 |
virtio_consoles[i] = NULL;
|
4824 |
virtio_console_index = 0;
|
4825 |
|
4826 |
for (i = 0; i < MAX_NODES; i++) { |
4827 |
node_mem[i] = 0;
|
4828 |
node_cpumask[i] = 0;
|
4829 |
} |
4830 |
|
4831 |
nb_numa_nodes = 0;
|
4832 |
nb_nics = 0;
|
4833 |
|
4834 |
tb_size = 0;
|
4835 |
autostart= 1;
|
4836 |
|
4837 |
optind = 1;
|
4838 |
for(;;) {
|
4839 |
if (optind >= argc)
|
4840 |
break;
|
4841 |
r = argv[optind]; |
4842 |
if (r[0] != '-') { |
4843 |
hda_opts = drive_add(argv[optind++], HD_ALIAS, 0);
|
4844 |
} else {
|
4845 |
const QEMUOption *popt;
|
4846 |
|
4847 |
optind++; |
4848 |
/* Treat --foo the same as -foo. */
|
4849 |
if (r[1] == '-') |
4850 |
r++; |
4851 |
popt = qemu_options; |
4852 |
for(;;) {
|
4853 |
if (!popt->name) {
|
4854 |
fprintf(stderr, "%s: invalid option -- '%s'\n",
|
4855 |
argv[0], r);
|
4856 |
exit(1);
|
4857 |
} |
4858 |
if (!strcmp(popt->name, r + 1)) |
4859 |
break;
|
4860 |
popt++; |
4861 |
} |
4862 |
if (popt->flags & HAS_ARG) {
|
4863 |
if (optind >= argc) {
|
4864 |
fprintf(stderr, "%s: option '%s' requires an argument\n",
|
4865 |
argv[0], r);
|
4866 |
exit(1);
|
4867 |
} |
4868 |
optarg = argv[optind++]; |
4869 |
} else {
|
4870 |
optarg = NULL;
|
4871 |
} |
4872 |
|
4873 |
switch(popt->index) {
|
4874 |
case QEMU_OPTION_M:
|
4875 |
machine = find_machine(optarg); |
4876 |
if (!machine) {
|
4877 |
QEMUMachine *m; |
4878 |
printf("Supported machines are:\n");
|
4879 |
for(m = first_machine; m != NULL; m = m->next) { |
4880 |
if (m->alias)
|
4881 |
printf("%-10s %s (alias of %s)\n",
|
4882 |
m->alias, m->desc, m->name); |
4883 |
printf("%-10s %s%s\n",
|
4884 |
m->name, m->desc, |
4885 |
m->is_default ? " (default)" : ""); |
4886 |
} |
4887 |
exit(*optarg != '?');
|
4888 |
} |
4889 |
break;
|
4890 |
case QEMU_OPTION_cpu:
|
4891 |
/* hw initialization will check this */
|
4892 |
if (*optarg == '?') { |
4893 |
/* XXX: implement xxx_cpu_list for targets that still miss it */
|
4894 |
#if defined(cpu_list)
|
4895 |
cpu_list(stdout, &fprintf); |
4896 |
#endif
|
4897 |
exit(0);
|
4898 |
} else {
|
4899 |
cpu_model = optarg; |
4900 |
} |
4901 |
break;
|
4902 |
case QEMU_OPTION_initrd:
|
4903 |
initrd_filename = optarg; |
4904 |
break;
|
4905 |
case QEMU_OPTION_hda:
|
4906 |
if (cyls == 0) |
4907 |
hda_opts = drive_add(optarg, HD_ALIAS, 0);
|
4908 |
else
|
4909 |
hda_opts = drive_add(optarg, HD_ALIAS |
4910 |
",cyls=%d,heads=%d,secs=%d%s",
|
4911 |
0, cyls, heads, secs,
|
4912 |
translation == BIOS_ATA_TRANSLATION_LBA ? |
4913 |
",trans=lba" :
|
4914 |
translation == BIOS_ATA_TRANSLATION_NONE ? |
4915 |
",trans=none" : ""); |
4916 |
break;
|
4917 |
case QEMU_OPTION_hdb:
|
4918 |
case QEMU_OPTION_hdc:
|
4919 |
case QEMU_OPTION_hdd:
|
4920 |
drive_add(optarg, HD_ALIAS, popt->index - QEMU_OPTION_hda); |
4921 |
break;
|
4922 |
case QEMU_OPTION_drive:
|
4923 |
drive_add(NULL, "%s", optarg); |
4924 |
break;
|
4925 |
case QEMU_OPTION_set:
|
4926 |
if (qemu_set_option(optarg) != 0) |
4927 |
exit(1);
|
4928 |
break;
|
4929 |
case QEMU_OPTION_global:
|
4930 |
if (qemu_global_option(optarg) != 0) |
4931 |
exit(1);
|
4932 |
break;
|
4933 |
case QEMU_OPTION_mtdblock:
|
4934 |
drive_add(optarg, MTD_ALIAS); |
4935 |
break;
|
4936 |
case QEMU_OPTION_sd:
|
4937 |
drive_add(optarg, SD_ALIAS); |
4938 |
break;
|
4939 |
case QEMU_OPTION_pflash:
|
4940 |
drive_add(optarg, PFLASH_ALIAS); |
4941 |
break;
|
4942 |
case QEMU_OPTION_snapshot:
|
4943 |
snapshot = 1;
|
4944 |
break;
|
4945 |
case QEMU_OPTION_hdachs:
|
4946 |
{ |
4947 |
const char *p; |
4948 |
p = optarg; |
4949 |
cyls = strtol(p, (char **)&p, 0); |
4950 |
if (cyls < 1 || cyls > 16383) |
4951 |
goto chs_fail;
|
4952 |
if (*p != ',') |
4953 |
goto chs_fail;
|
4954 |
p++; |
4955 |
heads = strtol(p, (char **)&p, 0); |
4956 |
if (heads < 1 || heads > 16) |
4957 |
goto chs_fail;
|
4958 |
if (*p != ',') |
4959 |
goto chs_fail;
|
4960 |
p++; |
4961 |
secs = strtol(p, (char **)&p, 0); |
4962 |
if (secs < 1 || secs > 63) |
4963 |
goto chs_fail;
|
4964 |
if (*p == ',') { |
4965 |
p++; |
4966 |
if (!strcmp(p, "none")) |
4967 |
translation = BIOS_ATA_TRANSLATION_NONE; |
4968 |
else if (!strcmp(p, "lba")) |
4969 |
translation = BIOS_ATA_TRANSLATION_LBA; |
4970 |
else if (!strcmp(p, "auto")) |
4971 |
translation = BIOS_ATA_TRANSLATION_AUTO; |
4972 |
else
|
4973 |
goto chs_fail;
|
4974 |
} else if (*p != '\0') { |
4975 |
chs_fail:
|
4976 |
fprintf(stderr, "qemu: invalid physical CHS format\n");
|
4977 |
exit(1);
|
4978 |
} |
4979 |
if (hda_opts != NULL) { |
4980 |
char num[16]; |
4981 |
snprintf(num, sizeof(num), "%d", cyls); |
4982 |
qemu_opt_set(hda_opts, "cyls", num);
|
4983 |
snprintf(num, sizeof(num), "%d", heads); |
4984 |
qemu_opt_set(hda_opts, "heads", num);
|
4985 |
snprintf(num, sizeof(num), "%d", secs); |
4986 |
qemu_opt_set(hda_opts, "secs", num);
|
4987 |
if (translation == BIOS_ATA_TRANSLATION_LBA)
|
4988 |
qemu_opt_set(hda_opts, "trans", "lba"); |
4989 |
if (translation == BIOS_ATA_TRANSLATION_NONE)
|
4990 |
qemu_opt_set(hda_opts, "trans", "none"); |
4991 |
} |
4992 |
} |
4993 |
break;
|
4994 |
case QEMU_OPTION_numa:
|
4995 |
if (nb_numa_nodes >= MAX_NODES) {
|
4996 |
fprintf(stderr, "qemu: too many NUMA nodes\n");
|
4997 |
exit(1);
|
4998 |
} |
4999 |
numa_add(optarg); |
5000 |
break;
|
5001 |
case QEMU_OPTION_nographic:
|
5002 |
display_type = DT_NOGRAPHIC; |
5003 |
break;
|
5004 |
#ifdef CONFIG_CURSES
|
5005 |
case QEMU_OPTION_curses:
|
5006 |
display_type = DT_CURSES; |
5007 |
break;
|
5008 |
#endif
|
5009 |
case QEMU_OPTION_portrait:
|
5010 |
graphic_rotate = 1;
|
5011 |
break;
|
5012 |
case QEMU_OPTION_kernel:
|
5013 |
kernel_filename = optarg; |
5014 |
break;
|
5015 |
case QEMU_OPTION_append:
|
5016 |
kernel_cmdline = optarg; |
5017 |
break;
|
5018 |
case QEMU_OPTION_cdrom:
|
5019 |
drive_add(optarg, CDROM_ALIAS); |
5020 |
break;
|
5021 |
case QEMU_OPTION_boot:
|
5022 |
{ |
5023 |
static const char * const params[] = { |
5024 |
"order", "once", "menu", NULL |
5025 |
}; |
5026 |
char buf[sizeof(boot_devices)]; |
5027 |
char *standard_boot_devices;
|
5028 |
int legacy = 0; |
5029 |
|
5030 |
if (!strchr(optarg, '=')) { |
5031 |
legacy = 1;
|
5032 |
pstrcpy(buf, sizeof(buf), optarg);
|
5033 |
} else if (check_params(buf, sizeof(buf), params, optarg) < 0) { |
5034 |
fprintf(stderr, |
5035 |
"qemu: unknown boot parameter '%s' in '%s'\n",
|
5036 |
buf, optarg); |
5037 |
exit(1);
|
5038 |
} |
5039 |
|
5040 |
if (legacy ||
|
5041 |
get_param_value(buf, sizeof(buf), "order", optarg)) { |
5042 |
boot_devices_bitmap = parse_bootdevices(buf); |
5043 |
pstrcpy(boot_devices, sizeof(boot_devices), buf);
|
5044 |
} |
5045 |
if (!legacy) {
|
5046 |
if (get_param_value(buf, sizeof(buf), |
5047 |
"once", optarg)) {
|
5048 |
boot_devices_bitmap |= parse_bootdevices(buf); |
5049 |
standard_boot_devices = qemu_strdup(boot_devices); |
5050 |
pstrcpy(boot_devices, sizeof(boot_devices), buf);
|
5051 |
qemu_register_reset(restore_boot_devices, |
5052 |
standard_boot_devices); |
5053 |
} |
5054 |
if (get_param_value(buf, sizeof(buf), |
5055 |
"menu", optarg)) {
|
5056 |
if (!strcmp(buf, "on")) { |
5057 |
boot_menu = 1;
|
5058 |
} else if (!strcmp(buf, "off")) { |
5059 |
boot_menu = 0;
|
5060 |
} else {
|
5061 |
fprintf(stderr, |
5062 |
"qemu: invalid option value '%s'\n",
|
5063 |
buf); |
5064 |
exit(1);
|
5065 |
} |
5066 |
} |
5067 |
} |
5068 |
} |
5069 |
break;
|
5070 |
case QEMU_OPTION_fda:
|
5071 |
case QEMU_OPTION_fdb:
|
5072 |
drive_add(optarg, FD_ALIAS, popt->index - QEMU_OPTION_fda); |
5073 |
break;
|
5074 |
#ifdef TARGET_I386
|
5075 |
case QEMU_OPTION_no_fd_bootchk:
|
5076 |
fd_bootchk = 0;
|
5077 |
break;
|
5078 |
#endif
|
5079 |
case QEMU_OPTION_netdev:
|
5080 |
if (net_client_parse(&qemu_netdev_opts, optarg) == -1) { |
5081 |
exit(1);
|
5082 |
} |
5083 |
break;
|
5084 |
case QEMU_OPTION_net:
|
5085 |
if (net_client_parse(&qemu_net_opts, optarg) == -1) { |
5086 |
exit(1);
|
5087 |
} |
5088 |
break;
|
5089 |
#ifdef CONFIG_SLIRP
|
5090 |
case QEMU_OPTION_tftp:
|
5091 |
legacy_tftp_prefix = optarg; |
5092 |
break;
|
5093 |
case QEMU_OPTION_bootp:
|
5094 |
legacy_bootp_filename = optarg; |
5095 |
break;
|
5096 |
#ifndef _WIN32
|
5097 |
case QEMU_OPTION_smb:
|
5098 |
if (net_slirp_smb(optarg) < 0) |
5099 |
exit(1);
|
5100 |
break;
|
5101 |
#endif
|
5102 |
case QEMU_OPTION_redir:
|
5103 |
if (net_slirp_redir(optarg) < 0) |
5104 |
exit(1);
|
5105 |
break;
|
5106 |
#endif
|
5107 |
case QEMU_OPTION_bt:
|
5108 |
add_device_config(DEV_BT, optarg); |
5109 |
break;
|
5110 |
#ifdef HAS_AUDIO
|
5111 |
case QEMU_OPTION_audio_help:
|
5112 |
AUD_help (); |
5113 |
exit (0);
|
5114 |
break;
|
5115 |
case QEMU_OPTION_soundhw:
|
5116 |
select_soundhw (optarg); |
5117 |
break;
|
5118 |
#endif
|
5119 |
case QEMU_OPTION_h:
|
5120 |
help(0);
|
5121 |
break;
|
5122 |
case QEMU_OPTION_version:
|
5123 |
version(); |
5124 |
exit(0);
|
5125 |
break;
|
5126 |
case QEMU_OPTION_m: {
|
5127 |
uint64_t value; |
5128 |
char *ptr;
|
5129 |
|
5130 |
value = strtoul(optarg, &ptr, 10);
|
5131 |
switch (*ptr) {
|
5132 |
case 0: case 'M': case 'm': |
5133 |
value <<= 20;
|
5134 |
break;
|
5135 |
case 'G': case 'g': |
5136 |
value <<= 30;
|
5137 |
break;
|
5138 |
default:
|
5139 |
fprintf(stderr, "qemu: invalid ram size: %s\n", optarg);
|
5140 |
exit(1);
|
5141 |
} |
5142 |
|
5143 |
/* On 32-bit hosts, QEMU is limited by virtual address space */
|
5144 |
if (value > (2047 << 20) && HOST_LONG_BITS == 32) { |
5145 |
fprintf(stderr, "qemu: at most 2047 MB RAM can be simulated\n");
|
5146 |
exit(1);
|
5147 |
} |
5148 |
if (value != (uint64_t)(ram_addr_t)value) {
|
5149 |
fprintf(stderr, "qemu: ram size too large\n");
|
5150 |
exit(1);
|
5151 |
} |
5152 |
ram_size = value; |
5153 |
break;
|
5154 |
} |
5155 |
case QEMU_OPTION_d:
|
5156 |
{ |
5157 |
int mask;
|
5158 |
const CPULogItem *item;
|
5159 |
|
5160 |
mask = cpu_str_to_log_mask(optarg); |
5161 |
if (!mask) {
|
5162 |
printf("Log items (comma separated):\n");
|
5163 |
for(item = cpu_log_items; item->mask != 0; item++) { |
5164 |
printf("%-10s %s\n", item->name, item->help);
|
5165 |
} |
5166 |
exit(1);
|
5167 |
} |
5168 |
cpu_set_log(mask); |
5169 |
} |
5170 |
break;
|
5171 |
case QEMU_OPTION_s:
|
5172 |
gdbstub_dev = "tcp::" DEFAULT_GDBSTUB_PORT;
|
5173 |
break;
|
5174 |
case QEMU_OPTION_gdb:
|
5175 |
gdbstub_dev = optarg; |
5176 |
break;
|
5177 |
case QEMU_OPTION_L:
|
5178 |
data_dir = optarg; |
5179 |
break;
|
5180 |
case QEMU_OPTION_bios:
|
5181 |
bios_name = optarg; |
5182 |
break;
|
5183 |
case QEMU_OPTION_singlestep:
|
5184 |
singlestep = 1;
|
5185 |
break;
|
5186 |
case QEMU_OPTION_S:
|
5187 |
autostart = 0;
|
5188 |
break;
|
5189 |
case QEMU_OPTION_k:
|
5190 |
keyboard_layout = optarg; |
5191 |
break;
|
5192 |
case QEMU_OPTION_localtime:
|
5193 |
rtc_utc = 0;
|
5194 |
break;
|
5195 |
case QEMU_OPTION_vga:
|
5196 |
select_vgahw (optarg); |
5197 |
break;
|
5198 |
#if defined(TARGET_PPC) || defined(TARGET_SPARC)
|
5199 |
case QEMU_OPTION_g:
|
5200 |
{ |
5201 |
const char *p; |
5202 |
int w, h, depth;
|
5203 |
p = optarg; |
5204 |
w = strtol(p, (char **)&p, 10); |
5205 |
if (w <= 0) { |
5206 |
graphic_error:
|
5207 |
fprintf(stderr, "qemu: invalid resolution or depth\n");
|
5208 |
exit(1);
|
5209 |
} |
5210 |
if (*p != 'x') |
5211 |
goto graphic_error;
|
5212 |
p++; |
5213 |
h = strtol(p, (char **)&p, 10); |
5214 |
if (h <= 0) |
5215 |
goto graphic_error;
|
5216 |
if (*p == 'x') { |
5217 |
p++; |
5218 |
depth = strtol(p, (char **)&p, 10); |
5219 |
if (depth != 8 && depth != 15 && depth != 16 && |
5220 |
depth != 24 && depth != 32) |
5221 |
goto graphic_error;
|
5222 |
} else if (*p == '\0') { |
5223 |
depth = graphic_depth; |
5224 |
} else {
|
5225 |
goto graphic_error;
|
5226 |
} |
5227 |
|
5228 |
graphic_width = w; |
5229 |
graphic_height = h; |
5230 |
graphic_depth = depth; |
5231 |
} |
5232 |
break;
|
5233 |
#endif
|
5234 |
case QEMU_OPTION_echr:
|
5235 |
{ |
5236 |
char *r;
|
5237 |
term_escape_char = strtol(optarg, &r, 0);
|
5238 |
if (r == optarg)
|
5239 |
printf("Bad argument to echr\n");
|
5240 |
break;
|
5241 |
} |
5242 |
case QEMU_OPTION_monitor:
|
5243 |
add_device_config(DEV_MONITOR, optarg); |
5244 |
default_monitor = 0;
|
5245 |
break;
|
5246 |
case QEMU_OPTION_chardev:
|
5247 |
opts = qemu_opts_parse(&qemu_chardev_opts, optarg, "backend");
|
5248 |
if (!opts) {
|
5249 |
fprintf(stderr, "parse error: %s\n", optarg);
|
5250 |
exit(1);
|
5251 |
} |
5252 |
break;
|
5253 |
case QEMU_OPTION_serial:
|
5254 |
add_device_config(DEV_SERIAL, optarg); |
5255 |
default_serial = 0;
|
5256 |
break;
|
5257 |
case QEMU_OPTION_watchdog:
|
5258 |
if (watchdog) {
|
5259 |
fprintf(stderr, |
5260 |
"qemu: only one watchdog option may be given\n");
|
5261 |
return 1; |
5262 |
} |
5263 |
watchdog = optarg; |
5264 |
break;
|
5265 |
case QEMU_OPTION_watchdog_action:
|
5266 |
if (select_watchdog_action(optarg) == -1) { |
5267 |
fprintf(stderr, "Unknown -watchdog-action parameter\n");
|
5268 |
exit(1);
|
5269 |
} |
5270 |
break;
|
5271 |
case QEMU_OPTION_virtiocon:
|
5272 |
if (virtio_console_index >= MAX_VIRTIO_CONSOLES) {
|
5273 |
fprintf(stderr, "qemu: too many virtio consoles\n");
|
5274 |
exit(1);
|
5275 |
} |
5276 |
virtio_consoles[virtio_console_index] = optarg; |
5277 |
virtio_console_index++; |
5278 |
break;
|
5279 |
case QEMU_OPTION_parallel:
|
5280 |
add_device_config(DEV_PARALLEL, optarg); |
5281 |
default_parallel = 0;
|
5282 |
break;
|
5283 |
case QEMU_OPTION_loadvm:
|
5284 |
loadvm = optarg; |
5285 |
break;
|
5286 |
case QEMU_OPTION_full_screen:
|
5287 |
full_screen = 1;
|
5288 |
break;
|
5289 |
#ifdef CONFIG_SDL
|
5290 |
case QEMU_OPTION_no_frame:
|
5291 |
no_frame = 1;
|
5292 |
break;
|
5293 |
case QEMU_OPTION_alt_grab:
|
5294 |
alt_grab = 1;
|
5295 |
break;
|
5296 |
case QEMU_OPTION_ctrl_grab:
|
5297 |
ctrl_grab = 1;
|
5298 |
break;
|
5299 |
case QEMU_OPTION_no_quit:
|
5300 |
no_quit = 1;
|
5301 |
break;
|
5302 |
case QEMU_OPTION_sdl:
|
5303 |
display_type = DT_SDL; |
5304 |
break;
|
5305 |
#endif
|
5306 |
case QEMU_OPTION_pidfile:
|
5307 |
pid_file = optarg; |
5308 |
break;
|
5309 |
#ifdef TARGET_I386
|
5310 |
case QEMU_OPTION_win2k_hack:
|
5311 |
win2k_install_hack = 1;
|
5312 |
break;
|
5313 |
case QEMU_OPTION_rtc_td_hack:
|
5314 |
rtc_td_hack = 1;
|
5315 |
break;
|
5316 |
case QEMU_OPTION_acpitable:
|
5317 |
if(acpi_table_add(optarg) < 0) { |
5318 |
fprintf(stderr, "Wrong acpi table provided\n");
|
5319 |
exit(1);
|
5320 |
} |
5321 |
break;
|
5322 |
case QEMU_OPTION_smbios:
|
5323 |
if(smbios_entry_add(optarg) < 0) { |
5324 |
fprintf(stderr, "Wrong smbios provided\n");
|
5325 |
exit(1);
|
5326 |
} |
5327 |
break;
|
5328 |
#endif
|
5329 |
#ifdef CONFIG_KVM
|
5330 |
case QEMU_OPTION_enable_kvm:
|
5331 |
kvm_allowed = 1;
|
5332 |
break;
|
5333 |
#endif
|
5334 |
case QEMU_OPTION_usb:
|
5335 |
usb_enabled = 1;
|
5336 |
break;
|
5337 |
case QEMU_OPTION_usbdevice:
|
5338 |
usb_enabled = 1;
|
5339 |
add_device_config(DEV_USB, optarg); |
5340 |
break;
|
5341 |
case QEMU_OPTION_device:
|
5342 |
if (!qemu_opts_parse(&qemu_device_opts, optarg, "driver")) { |
5343 |
exit(1);
|
5344 |
} |
5345 |
break;
|
5346 |
case QEMU_OPTION_smp:
|
5347 |
smp_parse(optarg); |
5348 |
if (smp_cpus < 1) { |
5349 |
fprintf(stderr, "Invalid number of CPUs\n");
|
5350 |
exit(1);
|
5351 |
} |
5352 |
if (max_cpus < smp_cpus) {
|
5353 |
fprintf(stderr, "maxcpus must be equal to or greater than "
|
5354 |
"smp\n");
|
5355 |
exit(1);
|
5356 |
} |
5357 |
if (max_cpus > 255) { |
5358 |
fprintf(stderr, "Unsupported number of maxcpus\n");
|
5359 |
exit(1);
|
5360 |
} |
5361 |
break;
|
5362 |
case QEMU_OPTION_vnc:
|
5363 |
display_type = DT_VNC; |
5364 |
vnc_display = optarg; |
5365 |
break;
|
5366 |
#ifdef TARGET_I386
|
5367 |
case QEMU_OPTION_no_acpi:
|
5368 |
acpi_enabled = 0;
|
5369 |
break;
|
5370 |
case QEMU_OPTION_no_hpet:
|
5371 |
no_hpet = 1;
|
5372 |
break;
|
5373 |
case QEMU_OPTION_balloon:
|
5374 |
if (balloon_parse(optarg) < 0) { |
5375 |
fprintf(stderr, "Unknown -balloon argument %s\n", optarg);
|
5376 |
exit(1);
|
5377 |
} |
5378 |
break;
|
5379 |
#endif
|
5380 |
case QEMU_OPTION_no_reboot:
|
5381 |
no_reboot = 1;
|
5382 |
break;
|
5383 |
case QEMU_OPTION_no_shutdown:
|
5384 |
no_shutdown = 1;
|
5385 |
break;
|
5386 |
case QEMU_OPTION_show_cursor:
|
5387 |
cursor_hide = 0;
|
5388 |
break;
|
5389 |
case QEMU_OPTION_uuid:
|
5390 |
if(qemu_uuid_parse(optarg, qemu_uuid) < 0) { |
5391 |
fprintf(stderr, "Fail to parse UUID string."
|
5392 |
" Wrong format.\n");
|
5393 |
exit(1);
|
5394 |
} |
5395 |
break;
|
5396 |
#ifndef _WIN32
|
5397 |
case QEMU_OPTION_daemonize:
|
5398 |
daemonize = 1;
|
5399 |
break;
|
5400 |
#endif
|
5401 |
case QEMU_OPTION_option_rom:
|
5402 |
if (nb_option_roms >= MAX_OPTION_ROMS) {
|
5403 |
fprintf(stderr, "Too many option ROMs\n");
|
5404 |
exit(1);
|
5405 |
} |
5406 |
option_rom[nb_option_roms] = optarg; |
5407 |
nb_option_roms++; |
5408 |
break;
|
5409 |
#if defined(TARGET_ARM) || defined(TARGET_M68K)
|
5410 |
case QEMU_OPTION_semihosting:
|
5411 |
semihosting_enabled = 1;
|
5412 |
break;
|
5413 |
#endif
|
5414 |
case QEMU_OPTION_name:
|
5415 |
qemu_name = qemu_strdup(optarg); |
5416 |
{ |
5417 |
char *p = strchr(qemu_name, ','); |
5418 |
if (p != NULL) { |
5419 |
*p++ = 0;
|
5420 |
if (strncmp(p, "process=", 8)) { |
5421 |
fprintf(stderr, "Unknown subargument %s to -name", p);
|
5422 |
exit(1);
|
5423 |
} |
5424 |
p += 8;
|
5425 |
set_proc_name(p); |
5426 |
} |
5427 |
} |
5428 |
break;
|
5429 |
#if defined(TARGET_SPARC) || defined(TARGET_PPC)
|
5430 |
case QEMU_OPTION_prom_env:
|
5431 |
if (nb_prom_envs >= MAX_PROM_ENVS) {
|
5432 |
fprintf(stderr, "Too many prom variables\n");
|
5433 |
exit(1);
|
5434 |
} |
5435 |
prom_envs[nb_prom_envs] = optarg; |
5436 |
nb_prom_envs++; |
5437 |
break;
|
5438 |
#endif
|
5439 |
#ifdef TARGET_ARM
|
5440 |
case QEMU_OPTION_old_param:
|
5441 |
old_param = 1;
|
5442 |
break;
|
5443 |
#endif
|
5444 |
case QEMU_OPTION_clock:
|
5445 |
configure_alarms(optarg); |
5446 |
break;
|
5447 |
case QEMU_OPTION_startdate:
|
5448 |
configure_rtc_date_offset(optarg, 1);
|
5449 |
break;
|
5450 |
case QEMU_OPTION_rtc:
|
5451 |
opts = qemu_opts_parse(&qemu_rtc_opts, optarg, NULL);
|
5452 |
if (!opts) {
|
5453 |
fprintf(stderr, "parse error: %s\n", optarg);
|
5454 |
exit(1);
|
5455 |
} |
5456 |
configure_rtc(opts); |
5457 |
break;
|
5458 |
case QEMU_OPTION_tb_size:
|
5459 |
tb_size = strtol(optarg, NULL, 0); |
5460 |
if (tb_size < 0) |
5461 |
tb_size = 0;
|
5462 |
break;
|
5463 |
case QEMU_OPTION_icount:
|
5464 |
use_icount = 1;
|
5465 |
if (strcmp(optarg, "auto") == 0) { |
5466 |
icount_time_shift = -1;
|
5467 |
} else {
|
5468 |
icount_time_shift = strtol(optarg, NULL, 0); |
5469 |
} |
5470 |
break;
|
5471 |
case QEMU_OPTION_incoming:
|
5472 |
incoming = optarg; |
5473 |
break;
|
5474 |
case QEMU_OPTION_nodefaults:
|
5475 |
default_serial = 0;
|
5476 |
default_parallel = 0;
|
5477 |
default_monitor = 0;
|
5478 |
default_vga = 0;
|
5479 |
default_net = 0;
|
5480 |
break;
|
5481 |
#ifndef _WIN32
|
5482 |
case QEMU_OPTION_chroot:
|
5483 |
chroot_dir = optarg; |
5484 |
break;
|
5485 |
case QEMU_OPTION_runas:
|
5486 |
run_as = optarg; |
5487 |
break;
|
5488 |
#endif
|
5489 |
#ifdef CONFIG_XEN
|
5490 |
case QEMU_OPTION_xen_domid:
|
5491 |
xen_domid = atoi(optarg); |
5492 |
break;
|
5493 |
case QEMU_OPTION_xen_create:
|
5494 |
xen_mode = XEN_CREATE; |
5495 |
break;
|
5496 |
case QEMU_OPTION_xen_attach:
|
5497 |
xen_mode = XEN_ATTACH; |
5498 |
break;
|
5499 |
#endif
|
5500 |
case QEMU_OPTION_readconfig:
|
5501 |
{ |
5502 |
FILE *fp; |
5503 |
fp = fopen(optarg, "r");
|
5504 |
if (fp == NULL) { |
5505 |
fprintf(stderr, "open %s: %s\n", optarg, strerror(errno));
|
5506 |
exit(1);
|
5507 |
} |
5508 |
if (qemu_config_parse(fp) != 0) { |
5509 |
exit(1);
|
5510 |
} |
5511 |
fclose(fp); |
5512 |
break;
|
5513 |
} |
5514 |
case QEMU_OPTION_writeconfig:
|
5515 |
{ |
5516 |
FILE *fp; |
5517 |
if (strcmp(optarg, "-") == 0) { |
5518 |
fp = stdout; |
5519 |
} else {
|
5520 |
fp = fopen(optarg, "w");
|
5521 |
if (fp == NULL) { |
5522 |
fprintf(stderr, "open %s: %s\n", optarg, strerror(errno));
|
5523 |
exit(1);
|
5524 |
} |
5525 |
} |
5526 |
qemu_config_write(fp); |
5527 |
fclose(fp); |
5528 |
break;
|
5529 |
} |
5530 |
} |
5531 |
} |
5532 |
} |
5533 |
|
5534 |
/* If no data_dir is specified then try to find it relative to the
|
5535 |
executable path. */
|
5536 |
if (!data_dir) {
|
5537 |
data_dir = find_datadir(argv[0]);
|
5538 |
} |
5539 |
/* If all else fails use the install patch specified when building. */
|
5540 |
if (!data_dir) {
|
5541 |
data_dir = CONFIG_QEMU_SHAREDIR; |
5542 |
} |
5543 |
|
5544 |
/*
|
5545 |
* Default to max_cpus = smp_cpus, in case the user doesn't
|
5546 |
* specify a max_cpus value.
|
5547 |
*/
|
5548 |
if (!max_cpus)
|
5549 |
max_cpus = smp_cpus; |
5550 |
|
5551 |
machine->max_cpus = machine->max_cpus ?: 1; /* Default to UP */ |
5552 |
if (smp_cpus > machine->max_cpus) {
|
5553 |
fprintf(stderr, "Number of SMP cpus requested (%d), exceeds max cpus "
|
5554 |
"supported by machine `%s' (%d)\n", smp_cpus, machine->name,
|
5555 |
machine->max_cpus); |
5556 |
exit(1);
|
5557 |
} |
5558 |
|
5559 |
qemu_opts_foreach(&qemu_device_opts, default_driver_check, NULL, 0); |
5560 |
|
5561 |
if (display_type == DT_NOGRAPHIC) {
|
5562 |
if (default_parallel)
|
5563 |
add_device_config(DEV_PARALLEL, "null");
|
5564 |
if (default_serial && default_monitor) {
|
5565 |
add_device_config(DEV_SERIAL, "mon:stdio");
|
5566 |
} else {
|
5567 |
if (default_serial)
|
5568 |
add_device_config(DEV_SERIAL, "stdio");
|
5569 |
if (default_monitor)
|
5570 |
add_device_config(DEV_MONITOR, "stdio");
|
5571 |
} |
5572 |
} else {
|
5573 |
if (default_serial)
|
5574 |
add_device_config(DEV_SERIAL, "vc:80Cx24C");
|
5575 |
if (default_parallel)
|
5576 |
add_device_config(DEV_PARALLEL, "vc:80Cx24C");
|
5577 |
if (default_monitor)
|
5578 |
add_device_config(DEV_MONITOR, "vc:80Cx24C");
|
5579 |
} |
5580 |
if (default_vga)
|
5581 |
vga_interface_type = VGA_CIRRUS; |
5582 |
|
5583 |
if (qemu_opts_foreach(&qemu_chardev_opts, chardev_init_func, NULL, 1) != 0) |
5584 |
exit(1);
|
5585 |
|
5586 |
#ifndef _WIN32
|
5587 |
if (daemonize) {
|
5588 |
pid_t pid; |
5589 |
|
5590 |
if (pipe(fds) == -1) |
5591 |
exit(1);
|
5592 |
|
5593 |
pid = fork(); |
5594 |
if (pid > 0) { |
5595 |
uint8_t status; |
5596 |
ssize_t len; |
5597 |
|
5598 |
close(fds[1]);
|
5599 |
|
5600 |
again:
|
5601 |
len = read(fds[0], &status, 1); |
5602 |
if (len == -1 && (errno == EINTR)) |
5603 |
goto again;
|
5604 |
|
5605 |
if (len != 1) |
5606 |
exit(1);
|
5607 |
else if (status == 1) { |
5608 |
fprintf(stderr, "Could not acquire pidfile: %s\n", strerror(errno));
|
5609 |
exit(1);
|
5610 |
} else
|
5611 |
exit(0);
|
5612 |
} else if (pid < 0) |
5613 |
exit(1);
|
5614 |
|
5615 |
close(fds[0]);
|
5616 |
qemu_set_cloexec(fds[1]);
|
5617 |
|
5618 |
setsid(); |
5619 |
|
5620 |
pid = fork(); |
5621 |
if (pid > 0) |
5622 |
exit(0);
|
5623 |
else if (pid < 0) |
5624 |
exit(1);
|
5625 |
|
5626 |
umask(027);
|
5627 |
|
5628 |
signal(SIGTSTP, SIG_IGN); |
5629 |
signal(SIGTTOU, SIG_IGN); |
5630 |
signal(SIGTTIN, SIG_IGN); |
5631 |
} |
5632 |
|
5633 |
if (pid_file && qemu_create_pidfile(pid_file) != 0) { |
5634 |
if (daemonize) {
|
5635 |
uint8_t status = 1;
|
5636 |
write(fds[1], &status, 1); |
5637 |
} else
|
5638 |
fprintf(stderr, "Could not acquire pid file: %s\n", strerror(errno));
|
5639 |
exit(1);
|
5640 |
} |
5641 |
#endif
|
5642 |
|
5643 |
if (kvm_enabled()) {
|
5644 |
int ret;
|
5645 |
|
5646 |
ret = kvm_init(smp_cpus); |
5647 |
if (ret < 0) { |
5648 |
fprintf(stderr, "failed to initialize KVM\n");
|
5649 |
exit(1);
|
5650 |
} |
5651 |
} |
5652 |
|
5653 |
if (qemu_init_main_loop()) {
|
5654 |
fprintf(stderr, "qemu_init_main_loop failed\n");
|
5655 |
exit(1);
|
5656 |
} |
5657 |
linux_boot = (kernel_filename != NULL);
|
5658 |
|
5659 |
if (!linux_boot && *kernel_cmdline != '\0') { |
5660 |
fprintf(stderr, "-append only allowed with -kernel option\n");
|
5661 |
exit(1);
|
5662 |
} |
5663 |
|
5664 |
if (!linux_boot && initrd_filename != NULL) { |
5665 |
fprintf(stderr, "-initrd only allowed with -kernel option\n");
|
5666 |
exit(1);
|
5667 |
} |
5668 |
|
5669 |
#ifndef _WIN32
|
5670 |
/* Win32 doesn't support line-buffering and requires size >= 2 */
|
5671 |
setvbuf(stdout, NULL, _IOLBF, 0); |
5672 |
#endif
|
5673 |
|
5674 |
if (init_timer_alarm() < 0) { |
5675 |
fprintf(stderr, "could not initialize alarm timer\n");
|
5676 |
exit(1);
|
5677 |
} |
5678 |
if (use_icount && icount_time_shift < 0) { |
5679 |
use_icount = 2;
|
5680 |
/* 125MIPS seems a reasonable initial guess at the guest speed.
|
5681 |
It will be corrected fairly quickly anyway. */
|
5682 |
icount_time_shift = 3;
|
5683 |
init_icount_adjust(); |
5684 |
} |
5685 |
|
5686 |
#ifdef _WIN32
|
5687 |
socket_init(); |
5688 |
#endif
|
5689 |
|
5690 |
if (net_init_clients() < 0) { |
5691 |
exit(1);
|
5692 |
} |
5693 |
|
5694 |
net_boot = (boot_devices_bitmap >> ('n' - 'a')) & 0xF; |
5695 |
net_set_boot_mask(net_boot); |
5696 |
|
5697 |
/* init the bluetooth world */
|
5698 |
if (foreach_device_config(DEV_BT, bt_parse))
|
5699 |
exit(1);
|
5700 |
|
5701 |
/* init the memory */
|
5702 |
if (ram_size == 0) |
5703 |
ram_size = DEFAULT_RAM_SIZE * 1024 * 1024; |
5704 |
|
5705 |
/* init the dynamic translator */
|
5706 |
cpu_exec_init_all(tb_size * 1024 * 1024); |
5707 |
|
5708 |
bdrv_init_with_whitelist(); |
5709 |
|
5710 |
blk_mig_init(); |
5711 |
|
5712 |
/* we always create the cdrom drive, even if no disk is there */
|
5713 |
drive_add(NULL, CDROM_ALIAS);
|
5714 |
|
5715 |
/* we always create at least one floppy */
|
5716 |
drive_add(NULL, FD_ALIAS, 0); |
5717 |
|
5718 |
/* we always create one sd slot, even if no card is in it */
|
5719 |
drive_add(NULL, SD_ALIAS);
|
5720 |
|
5721 |
/* open the virtual block devices */
|
5722 |
if (snapshot)
|
5723 |
qemu_opts_foreach(&qemu_drive_opts, drive_enable_snapshot, NULL, 0); |
5724 |
if (qemu_opts_foreach(&qemu_drive_opts, drive_init_func, machine, 1) != 0) |
5725 |
exit(1);
|
5726 |
|
5727 |
vmstate_register(0, &vmstate_timers ,&timers_state);
|
5728 |
register_savevm_live("ram", 0, 3, NULL, ram_save_live, NULL, |
5729 |
ram_load, NULL);
|
5730 |
|
5731 |
if (nb_numa_nodes > 0) { |
5732 |
int i;
|
5733 |
|
5734 |
if (nb_numa_nodes > smp_cpus) {
|
5735 |
nb_numa_nodes = smp_cpus; |
5736 |
} |
5737 |
|
5738 |
/* If no memory size if given for any node, assume the default case
|
5739 |
* and distribute the available memory equally across all nodes
|
5740 |
*/
|
5741 |
for (i = 0; i < nb_numa_nodes; i++) { |
5742 |
if (node_mem[i] != 0) |
5743 |
break;
|
5744 |
} |
5745 |
if (i == nb_numa_nodes) {
|
5746 |
uint64_t usedmem = 0;
|
5747 |
|
5748 |
/* On Linux, the each node's border has to be 8MB aligned,
|
5749 |
* the final node gets the rest.
|
5750 |
*/
|
5751 |
for (i = 0; i < nb_numa_nodes - 1; i++) { |
5752 |
node_mem[i] = (ram_size / nb_numa_nodes) & ~((1 << 23UL) - 1); |
5753 |
usedmem += node_mem[i]; |
5754 |
} |
5755 |
node_mem[i] = ram_size - usedmem; |
5756 |
} |
5757 |
|
5758 |
for (i = 0; i < nb_numa_nodes; i++) { |
5759 |
if (node_cpumask[i] != 0) |
5760 |
break;
|
5761 |
} |
5762 |
/* assigning the VCPUs round-robin is easier to implement, guest OSes
|
5763 |
* must cope with this anyway, because there are BIOSes out there in
|
5764 |
* real machines which also use this scheme.
|
5765 |
*/
|
5766 |
if (i == nb_numa_nodes) {
|
5767 |
for (i = 0; i < smp_cpus; i++) { |
5768 |
node_cpumask[i % nb_numa_nodes] |= 1 << i;
|
5769 |
} |
5770 |
} |
5771 |
} |
5772 |
|
5773 |
if (foreach_device_config(DEV_MONITOR, monitor_parse) < 0) |
5774 |
exit(1);
|
5775 |
if (foreach_device_config(DEV_SERIAL, serial_parse) < 0) |
5776 |
exit(1);
|
5777 |
if (foreach_device_config(DEV_PARALLEL, parallel_parse) < 0) |
5778 |
exit(1);
|
5779 |
|
5780 |
for(i = 0; i < MAX_VIRTIO_CONSOLES; i++) { |
5781 |
const char *devname = virtio_consoles[i]; |
5782 |
if (devname && strcmp(devname, "none")) { |
5783 |
char label[32]; |
5784 |
snprintf(label, sizeof(label), "virtcon%d", i); |
5785 |
virtcon_hds[i] = qemu_chr_open(label, devname, NULL);
|
5786 |
if (!virtcon_hds[i]) {
|
5787 |
fprintf(stderr, "qemu: could not open virtio console '%s': %s\n",
|
5788 |
devname, strerror(errno)); |
5789 |
exit(1);
|
5790 |
} |
5791 |
} |
5792 |
} |
5793 |
|
5794 |
module_call_init(MODULE_INIT_DEVICE); |
5795 |
|
5796 |
if (watchdog) {
|
5797 |
i = select_watchdog(watchdog); |
5798 |
if (i > 0) |
5799 |
exit (i == 1 ? 1 : 0); |
5800 |
} |
5801 |
|
5802 |
if (machine->compat_props) {
|
5803 |
qdev_prop_register_global_list(machine->compat_props); |
5804 |
} |
5805 |
qemu_add_globals(); |
5806 |
|
5807 |
machine->init(ram_size, boot_devices, |
5808 |
kernel_filename, kernel_cmdline, initrd_filename, cpu_model); |
5809 |
|
5810 |
|
5811 |
#ifndef _WIN32
|
5812 |
/* must be after terminal init, SDL library changes signal handlers */
|
5813 |
sighandler_setup(); |
5814 |
#endif
|
5815 |
|
5816 |
for (env = first_cpu; env != NULL; env = env->next_cpu) { |
5817 |
for (i = 0; i < nb_numa_nodes; i++) { |
5818 |
if (node_cpumask[i] & (1 << env->cpu_index)) { |
5819 |
env->numa_node = i; |
5820 |
} |
5821 |
} |
5822 |
} |
5823 |
|
5824 |
current_machine = machine; |
5825 |
|
5826 |
/* init USB devices */
|
5827 |
if (usb_enabled) {
|
5828 |
if (foreach_device_config(DEV_USB, usb_parse) < 0) |
5829 |
exit(1);
|
5830 |
} |
5831 |
|
5832 |
/* init generic devices */
|
5833 |
if (qemu_opts_foreach(&qemu_device_opts, device_init_func, NULL, 1) != 0) |
5834 |
exit(1);
|
5835 |
|
5836 |
if (!display_state)
|
5837 |
dumb_display_init(); |
5838 |
/* just use the first displaystate for the moment */
|
5839 |
ds = display_state; |
5840 |
|
5841 |
if (display_type == DT_DEFAULT) {
|
5842 |
#if defined(CONFIG_SDL) || defined(CONFIG_COCOA)
|
5843 |
display_type = DT_SDL; |
5844 |
#else
|
5845 |
display_type = DT_VNC; |
5846 |
vnc_display = "localhost:0,to=99";
|
5847 |
show_vnc_port = 1;
|
5848 |
#endif
|
5849 |
} |
5850 |
|
5851 |
|
5852 |
switch (display_type) {
|
5853 |
case DT_NOGRAPHIC:
|
5854 |
break;
|
5855 |
#if defined(CONFIG_CURSES)
|
5856 |
case DT_CURSES:
|
5857 |
curses_display_init(ds, full_screen); |
5858 |
break;
|
5859 |
#endif
|
5860 |
#if defined(CONFIG_SDL)
|
5861 |
case DT_SDL:
|
5862 |
sdl_display_init(ds, full_screen, no_frame); |
5863 |
break;
|
5864 |
#elif defined(CONFIG_COCOA)
|
5865 |
case DT_SDL:
|
5866 |
cocoa_display_init(ds, full_screen); |
5867 |
break;
|
5868 |
#endif
|
5869 |
case DT_VNC:
|
5870 |
vnc_display_init(ds); |
5871 |
if (vnc_display_open(ds, vnc_display) < 0) |
5872 |
exit(1);
|
5873 |
|
5874 |
if (show_vnc_port) {
|
5875 |
printf("VNC server running on `%s'\n", vnc_display_local_addr(ds));
|
5876 |
} |
5877 |
break;
|
5878 |
default:
|
5879 |
break;
|
5880 |
} |
5881 |
dpy_resize(ds); |
5882 |
|
5883 |
dcl = ds->listeners; |
5884 |
while (dcl != NULL) { |
5885 |
if (dcl->dpy_refresh != NULL) { |
5886 |
ds->gui_timer = qemu_new_timer(rt_clock, gui_update, ds); |
5887 |
qemu_mod_timer(ds->gui_timer, qemu_get_clock(rt_clock)); |
5888 |
} |
5889 |
dcl = dcl->next; |
5890 |
} |
5891 |
|
5892 |
if (display_type == DT_NOGRAPHIC || display_type == DT_VNC) {
|
5893 |
nographic_timer = qemu_new_timer(rt_clock, nographic_update, NULL);
|
5894 |
qemu_mod_timer(nographic_timer, qemu_get_clock(rt_clock)); |
5895 |
} |
5896 |
|
5897 |
text_consoles_set_display(display_state); |
5898 |
|
5899 |
for (i = 0; i < MAX_MONITOR_DEVICES; i++) { |
5900 |
if (monitor_hds[i]) {
|
5901 |
monitor_init(monitor_hds[i], |
5902 |
MONITOR_USE_READLINE | |
5903 |
((i == 0) ? MONITOR_IS_DEFAULT : 0)); |
5904 |
} |
5905 |
} |
5906 |
|
5907 |
if (gdbstub_dev && gdbserver_start(gdbstub_dev) < 0) { |
5908 |
fprintf(stderr, "qemu: could not open gdbserver on device '%s'\n",
|
5909 |
gdbstub_dev); |
5910 |
exit(1);
|
5911 |
} |
5912 |
|
5913 |
qdev_machine_creation_done(); |
5914 |
|
5915 |
rom_load_all(); |
5916 |
|
5917 |
qemu_system_reset(); |
5918 |
if (loadvm) {
|
5919 |
if (load_vmstate(cur_mon, loadvm) < 0) { |
5920 |
autostart = 0;
|
5921 |
} |
5922 |
} |
5923 |
|
5924 |
if (incoming) {
|
5925 |
qemu_start_incoming_migration(incoming); |
5926 |
} else if (autostart) { |
5927 |
vm_start(); |
5928 |
} |
5929 |
|
5930 |
#ifndef _WIN32
|
5931 |
if (daemonize) {
|
5932 |
uint8_t status = 0;
|
5933 |
ssize_t len; |
5934 |
|
5935 |
again1:
|
5936 |
len = write(fds[1], &status, 1); |
5937 |
if (len == -1 && (errno == EINTR)) |
5938 |
goto again1;
|
5939 |
|
5940 |
if (len != 1) |
5941 |
exit(1);
|
5942 |
|
5943 |
chdir("/");
|
5944 |
TFR(fd = qemu_open("/dev/null", O_RDWR));
|
5945 |
if (fd == -1) |
5946 |
exit(1);
|
5947 |
} |
5948 |
|
5949 |
if (run_as) {
|
5950 |
pwd = getpwnam(run_as); |
5951 |
if (!pwd) {
|
5952 |
fprintf(stderr, "User \"%s\" doesn't exist\n", run_as);
|
5953 |
exit(1);
|
5954 |
} |
5955 |
} |
5956 |
|
5957 |
if (chroot_dir) {
|
5958 |
if (chroot(chroot_dir) < 0) { |
5959 |
fprintf(stderr, "chroot failed\n");
|
5960 |
exit(1);
|
5961 |
} |
5962 |
chdir("/");
|
5963 |
} |
5964 |
|
5965 |
if (run_as) {
|
5966 |
if (setgid(pwd->pw_gid) < 0) { |
5967 |
fprintf(stderr, "Failed to setgid(%d)\n", pwd->pw_gid);
|
5968 |
exit(1);
|
5969 |
} |
5970 |
if (setuid(pwd->pw_uid) < 0) { |
5971 |
fprintf(stderr, "Failed to setuid(%d)\n", pwd->pw_uid);
|
5972 |
exit(1);
|
5973 |
} |
5974 |
if (setuid(0) != -1) { |
5975 |
fprintf(stderr, "Dropping privileges failed\n");
|
5976 |
exit(1);
|
5977 |
} |
5978 |
} |
5979 |
|
5980 |
if (daemonize) {
|
5981 |
dup2(fd, 0);
|
5982 |
dup2(fd, 1);
|
5983 |
dup2(fd, 2);
|
5984 |
|
5985 |
close(fd); |
5986 |
} |
5987 |
#endif
|
5988 |
|
5989 |
main_loop(); |
5990 |
quit_timers(); |
5991 |
net_cleanup(); |
5992 |
|
5993 |
return 0; |
5994 |
} |