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qemu/vl.c
Gerd Hoffmann 4524051c32 Add search path support for qemu data files. 
This patch allows to specify multiple directories where qemu should look
for data files.  To implement that the behavior of the -L switch is
slightly different now:  Instead of replacing the data directory the
path specified will be appended to the data directory list.  So when
specifiying -L multiple times all directories specified will be checked,
in the order they are specified on the command line, instead of just the
last one.

Additionally the default paths are always appended to the directory
data list.  This allows to specify a incomplete directory (such as the
seabios out/ directory) via -L.  Anything not found there will be loaded
from the default paths, so you don't have to create a symlink farm for
all the rom blobs.

For trouble-shooting a tracepoint has been added, logging which blob
has been loaded from which location.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Message-id: 1362739344-8068-1-git-send-email-kraxel@redhat.com
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2013-03-12 13:42:28 -05:00

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/*
* QEMU System Emulator
*
* Copyright (c) 2003-2008 Fabrice Bellard
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
#include <unistd.h>
#include <fcntl.h>
#include <signal.h>
#include <time.h>
#include <errno.h>
#include <sys/time.h>
#include <zlib.h>
#include "qemu/bitmap.h"
/* Needed early for CONFIG_BSD etc. */
#include "config-host.h"
#ifndef _WIN32
#include <libgen.h>
#include <sys/times.h>
#include <sys/wait.h>
#include <termios.h>
#include <sys/mman.h>
#include <sys/ioctl.h>
#include <sys/resource.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <net/if.h>
#include <arpa/inet.h>
#include <dirent.h>
#include <netdb.h>
#include <sys/select.h>
#ifdef CONFIG_BSD
#include <sys/stat.h>
#if defined(__FreeBSD__) || defined(__FreeBSD_kernel__) || defined(__DragonFly__)
#include <sys/sysctl.h>
#else
#include <util.h>
#endif
#else
#ifdef __linux__
#include <malloc.h>
#include <linux/ppdev.h>
#include <linux/parport.h>
#endif
#ifdef CONFIG_SECCOMP
#include "sysemu/seccomp.h"
#endif
#ifdef __sun__
#include <sys/stat.h>
#include <sys/ethernet.h>
#include <sys/sockio.h>
#include <netinet/arp.h>
#include <netinet/in_systm.h>
#include <netinet/ip.h>
#include <netinet/ip_icmp.h> // must come after ip.h
#include <netinet/udp.h>
#include <netinet/tcp.h>
#include <net/if.h>
#include <syslog.h>
#include <stropts.h>
#endif
#endif
#endif
#if defined(CONFIG_VDE)
#include <libvdeplug.h>
#endif
#ifdef _WIN32
#include <windows.h>
#endif
#ifdef CONFIG_SDL
#if defined(__APPLE__) || defined(main)
#include <SDL.h>
int qemu_main(int argc, char **argv, char **envp);
int main(int argc, char **argv)
{
return qemu_main(argc, argv, NULL);
}
#undef main
#define main qemu_main
#endif
#endif /* CONFIG_SDL */
#ifdef CONFIG_COCOA
#undef main
#define main qemu_main
#endif /* CONFIG_COCOA */
#include <glib.h>
#include "hw/hw.h"
#include "hw/boards.h"
#include "hw/usb.h"
#include "hw/pcmcia.h"
#include "hw/pc.h"
#include "hw/isa.h"
#include "hw/bt.h"
#include "hw/watchdog.h"
#include "hw/smbios.h"
#include "hw/xen.h"
#include "hw/qdev.h"
#include "hw/loader.h"
#include "monitor/qdev.h"
#include "bt/bt.h"
#include "net/net.h"
#include "net/slirp.h"
#include "monitor/monitor.h"
#include "ui/console.h"
#include "sysemu/sysemu.h"
#include "exec/gdbstub.h"
#include "qemu/timer.h"
#include "char/char.h"
#include "qemu/cache-utils.h"
#include "sysemu/blockdev.h"
#include "hw/block-common.h"
#include "migration/block.h"
#include "tpm/tpm.h"
#include "sysemu/dma.h"
#include "audio/audio.h"
#include "migration/migration.h"
#include "sysemu/kvm.h"
#include "qapi/qmp/qjson.h"
#include "qemu/option.h"
#include "qemu/config-file.h"
#include "qemu-options.h"
#include "qmp-commands.h"
#include "qemu/main-loop.h"
#ifdef CONFIG_VIRTFS
#include "fsdev/qemu-fsdev.h"
#endif
#include "sysemu/qtest.h"
#include "disas/disas.h"
#include "qemu/sockets.h"
#include "slirp/libslirp.h"
#include "trace.h"
#include "trace/control.h"
#include "qemu/queue.h"
#include "sysemu/cpus.h"
#include "sysemu/arch_init.h"
#include "qemu/osdep.h"
#include "ui/qemu-spice.h"
#include "qapi/string-input-visitor.h"
//#define DEBUG_NET
//#define DEBUG_SLIRP
#define DEFAULT_RAM_SIZE 128
#define MAX_VIRTIO_CONSOLES 1
#define MAX_SCLP_CONSOLES 1
static const char *data_dir[16];
static int data_dir_idx;
const char *bios_name = NULL;
enum vga_retrace_method vga_retrace_method = VGA_RETRACE_DUMB;
DisplayType display_type = DT_DEFAULT;
static int display_remote;
const char* keyboard_layout = NULL;
ram_addr_t ram_size;
const char *mem_path = NULL;
#ifdef MAP_POPULATE
int mem_prealloc = 0; /* force preallocation of physical target memory */
#endif
int nb_nics;
NICInfo nd_table[MAX_NICS];
int autostart;
static int rtc_utc = 1;
static int rtc_date_offset = -1; /* -1 means no change */
QEMUClock *rtc_clock;
int vga_interface_type = VGA_NONE;
static int full_screen = 0;
#ifdef CONFIG_SDL
static int no_frame = 0;
#endif
int no_quit = 0;
CharDriverState *serial_hds[MAX_SERIAL_PORTS];
CharDriverState *parallel_hds[MAX_PARALLEL_PORTS];
CharDriverState *virtcon_hds[MAX_VIRTIO_CONSOLES];
CharDriverState *sclp_hds[MAX_SCLP_CONSOLES];
int win2k_install_hack = 0;
int singlestep = 0;
int smp_cpus = 1;
int max_cpus = 0;
int smp_cores = 1;
int smp_threads = 1;
#ifdef CONFIG_VNC
const char *vnc_display;
#endif
int acpi_enabled = 1;
int no_hpet = 0;
int fd_bootchk = 1;
static int no_reboot;
int no_shutdown = 0;
int cursor_hide = 1;
int graphic_rotate = 0;
const char *watchdog;
QEMUOptionRom option_rom[MAX_OPTION_ROMS];
int nb_option_roms;
int semihosting_enabled = 0;
int old_param = 0;
const char *qemu_name;
int alt_grab = 0;
int ctrl_grab = 0;
unsigned int nb_prom_envs = 0;
const char *prom_envs[MAX_PROM_ENVS];
int boot_menu;
uint8_t *boot_splash_filedata;
size_t boot_splash_filedata_size;
uint8_t qemu_extra_params_fw[2];
typedef struct FWBootEntry FWBootEntry;
struct FWBootEntry {
QTAILQ_ENTRY(FWBootEntry) link;
int32_t bootindex;
DeviceState *dev;
char *suffix;
};
static QTAILQ_HEAD(, FWBootEntry) fw_boot_order =
QTAILQ_HEAD_INITIALIZER(fw_boot_order);
int nb_numa_nodes;
uint64_t node_mem[MAX_NODES];
unsigned long *node_cpumask[MAX_NODES];
uint8_t qemu_uuid[16];
static QEMUBootSetHandler *boot_set_handler;
static void *boot_set_opaque;
static NotifierList exit_notifiers =
NOTIFIER_LIST_INITIALIZER(exit_notifiers);
static NotifierList machine_init_done_notifiers =
NOTIFIER_LIST_INITIALIZER(machine_init_done_notifiers);
static bool tcg_allowed = true;
bool kvm_allowed;
bool xen_allowed;
uint32_t xen_domid;
enum xen_mode xen_mode = XEN_EMULATE;
static int tcg_tb_size;
static int default_serial = 1;
static int default_parallel = 1;
static int default_virtcon = 1;
static int default_sclp = 1;
static int default_monitor = 1;
static int default_floppy = 1;
static int default_cdrom = 1;
static int default_sdcard = 1;
static int default_vga = 1;
static struct {
const char *driver;
int *flag;
} default_list[] = {
{ .driver = "isa-serial", .flag = &default_serial },
{ .driver = "isa-parallel", .flag = &default_parallel },
{ .driver = "isa-fdc", .flag = &default_floppy },
{ .driver = "ide-cd", .flag = &default_cdrom },
{ .driver = "ide-hd", .flag = &default_cdrom },
{ .driver = "ide-drive", .flag = &default_cdrom },
{ .driver = "scsi-cd", .flag = &default_cdrom },
{ .driver = "virtio-serial-pci", .flag = &default_virtcon },
{ .driver = "virtio-serial-s390", .flag = &default_virtcon },
{ .driver = "virtio-serial", .flag = &default_virtcon },
{ .driver = "VGA", .flag = &default_vga },
{ .driver = "isa-vga", .flag = &default_vga },
{ .driver = "cirrus-vga", .flag = &default_vga },
{ .driver = "isa-cirrus-vga", .flag = &default_vga },
{ .driver = "vmware-svga", .flag = &default_vga },
{ .driver = "qxl-vga", .flag = &default_vga },
};
static QemuOptsList qemu_rtc_opts = {
.name = "rtc",
.head = QTAILQ_HEAD_INITIALIZER(qemu_rtc_opts.head),
.desc = {
{
.name = "base",
.type = QEMU_OPT_STRING,
},{
.name = "clock",
.type = QEMU_OPT_STRING,
},{
.name = "driftfix",
.type = QEMU_OPT_STRING,
},
{ /* end of list */ }
},
};
static QemuOptsList qemu_sandbox_opts = {
.name = "sandbox",
.implied_opt_name = "enable",
.head = QTAILQ_HEAD_INITIALIZER(qemu_sandbox_opts.head),
.desc = {
{
.name = "enable",
.type = QEMU_OPT_BOOL,
},
{ /* end of list */ }
},
};
static QemuOptsList qemu_trace_opts = {
.name = "trace",
.implied_opt_name = "trace",
.head = QTAILQ_HEAD_INITIALIZER(qemu_trace_opts.head),
.desc = {
{
.name = "events",
.type = QEMU_OPT_STRING,
},{
.name = "file",
.type = QEMU_OPT_STRING,
},
{ /* end of list */ }
},
};
static QemuOptsList qemu_option_rom_opts = {
.name = "option-rom",
.implied_opt_name = "romfile",
.head = QTAILQ_HEAD_INITIALIZER(qemu_option_rom_opts.head),
.desc = {
{
.name = "bootindex",
.type = QEMU_OPT_NUMBER,
}, {
.name = "romfile",
.type = QEMU_OPT_STRING,
},
{ /* end of list */ }
},
};
static QemuOptsList qemu_machine_opts = {
.name = "machine",
.implied_opt_name = "type",
.merge_lists = true,
.head = QTAILQ_HEAD_INITIALIZER(qemu_machine_opts.head),
.desc = {
{
.name = "type",
.type = QEMU_OPT_STRING,
.help = "emulated machine"
}, {
.name = "accel",
.type = QEMU_OPT_STRING,
.help = "accelerator list",
}, {
.name = "kernel_irqchip",
.type = QEMU_OPT_BOOL,
.help = "use KVM in-kernel irqchip",
}, {
.name = "kvm_shadow_mem",
.type = QEMU_OPT_SIZE,
.help = "KVM shadow MMU size",
}, {
.name = "kernel",
.type = QEMU_OPT_STRING,
.help = "Linux kernel image file",
}, {
.name = "initrd",
.type = QEMU_OPT_STRING,
.help = "Linux initial ramdisk file",
}, {
.name = "append",
.type = QEMU_OPT_STRING,
.help = "Linux kernel command line",
}, {
.name = "dtb",
.type = QEMU_OPT_STRING,
.help = "Linux kernel device tree file",
}, {
.name = "dumpdtb",
.type = QEMU_OPT_STRING,
.help = "Dump current dtb to a file and quit",
}, {
.name = "phandle_start",
.type = QEMU_OPT_STRING,
.help = "The first phandle ID we may generate dynamically",
}, {
.name = "dt_compatible",
.type = QEMU_OPT_STRING,
.help = "Overrides the \"compatible\" property of the dt root node",
}, {
.name = "dump-guest-core",
.type = QEMU_OPT_BOOL,
.help = "Include guest memory in a core dump",
}, {
.name = "mem-merge",
.type = QEMU_OPT_BOOL,
.help = "enable/disable memory merge support",
},{
.name = "usb",
.type = QEMU_OPT_BOOL,
.help = "Set on/off to enable/disable usb",
},
{ /* End of list */ }
},
};
static QemuOptsList qemu_boot_opts = {
.name = "boot-opts",
.head = QTAILQ_HEAD_INITIALIZER(qemu_boot_opts.head),
.desc = {
/* the three names below are not used now */
{
.name = "order",
.type = QEMU_OPT_STRING,
}, {
.name = "once",
.type = QEMU_OPT_STRING,
}, {
.name = "menu",
.type = QEMU_OPT_STRING,
/* following are really used */
}, {
.name = "splash",
.type = QEMU_OPT_STRING,
}, {
.name = "splash-time",
.type = QEMU_OPT_STRING,
}, {
.name = "reboot-timeout",
.type = QEMU_OPT_STRING,
},
{ /*End of list */ }
},
};
static QemuOptsList qemu_add_fd_opts = {
.name = "add-fd",
.head = QTAILQ_HEAD_INITIALIZER(qemu_add_fd_opts.head),
.desc = {
{
.name = "fd",
.type = QEMU_OPT_NUMBER,
.help = "file descriptor of which a duplicate is added to fd set",
},{
.name = "set",
.type = QEMU_OPT_NUMBER,
.help = "ID of the fd set to add fd to",
},{
.name = "opaque",
.type = QEMU_OPT_STRING,
.help = "free-form string used to describe fd",
},
{ /* end of list */ }
},
};
static QemuOptsList qemu_object_opts = {
.name = "object",
.implied_opt_name = "qom-type",
.head = QTAILQ_HEAD_INITIALIZER(qemu_object_opts.head),
.desc = {
{ }
},
};
static QemuOptsList qemu_tpmdev_opts = {
.name = "tpmdev",
.implied_opt_name = "type",
.head = QTAILQ_HEAD_INITIALIZER(qemu_tpmdev_opts.head),
.desc = {
{
.name = "type",
.type = QEMU_OPT_STRING,
.help = "Type of TPM backend",
},
{
.name = "cancel-path",
.type = QEMU_OPT_STRING,
.help = "Sysfs file entry for canceling TPM commands",
},
{
.name = "path",
.type = QEMU_OPT_STRING,
.help = "Path to TPM device on the host",
},
{ /* end of list */ }
},
};
const char *qemu_get_vm_name(void)
{
return qemu_name;
}
static void res_free(void)
{
if (boot_splash_filedata != NULL) {
g_free(boot_splash_filedata);
boot_splash_filedata = NULL;
}
}
static int default_driver_check(QemuOpts *opts, void *opaque)
{
const char *driver = qemu_opt_get(opts, "driver");
int i;
if (!driver)
return 0;
for (i = 0; i < ARRAY_SIZE(default_list); i++) {
if (strcmp(default_list[i].driver, driver) != 0)
continue;
*(default_list[i].flag) = 0;
}
return 0;
}
/***********************************************************/
/* QEMU state */
static RunState current_run_state = RUN_STATE_PRELAUNCH;
typedef struct {
RunState from;
RunState to;
} RunStateTransition;
static const RunStateTransition runstate_transitions_def[] = {
/* from -> to */
{ RUN_STATE_DEBUG, RUN_STATE_RUNNING },
{ RUN_STATE_INMIGRATE, RUN_STATE_RUNNING },
{ RUN_STATE_INMIGRATE, RUN_STATE_PAUSED },
{ RUN_STATE_INTERNAL_ERROR, RUN_STATE_PAUSED },
{ RUN_STATE_INTERNAL_ERROR, RUN_STATE_FINISH_MIGRATE },
{ RUN_STATE_IO_ERROR, RUN_STATE_RUNNING },
{ RUN_STATE_IO_ERROR, RUN_STATE_FINISH_MIGRATE },
{ RUN_STATE_PAUSED, RUN_STATE_RUNNING },
{ RUN_STATE_PAUSED, RUN_STATE_FINISH_MIGRATE },
{ RUN_STATE_POSTMIGRATE, RUN_STATE_RUNNING },
{ RUN_STATE_POSTMIGRATE, RUN_STATE_FINISH_MIGRATE },
{ RUN_STATE_PRELAUNCH, RUN_STATE_RUNNING },
{ RUN_STATE_PRELAUNCH, RUN_STATE_FINISH_MIGRATE },
{ RUN_STATE_PRELAUNCH, RUN_STATE_INMIGRATE },
{ RUN_STATE_FINISH_MIGRATE, RUN_STATE_RUNNING },
{ RUN_STATE_FINISH_MIGRATE, RUN_STATE_POSTMIGRATE },
{ RUN_STATE_RESTORE_VM, RUN_STATE_RUNNING },
{ RUN_STATE_RUNNING, RUN_STATE_DEBUG },
{ RUN_STATE_RUNNING, RUN_STATE_INTERNAL_ERROR },
{ RUN_STATE_RUNNING, RUN_STATE_IO_ERROR },
{ RUN_STATE_RUNNING, RUN_STATE_PAUSED },
{ RUN_STATE_RUNNING, RUN_STATE_FINISH_MIGRATE },
{ RUN_STATE_RUNNING, RUN_STATE_RESTORE_VM },
{ RUN_STATE_RUNNING, RUN_STATE_SAVE_VM },
{ RUN_STATE_RUNNING, RUN_STATE_SHUTDOWN },
{ RUN_STATE_RUNNING, RUN_STATE_WATCHDOG },
{ RUN_STATE_SAVE_VM, RUN_STATE_RUNNING },
{ RUN_STATE_SHUTDOWN, RUN_STATE_PAUSED },
{ RUN_STATE_SHUTDOWN, RUN_STATE_FINISH_MIGRATE },
{ RUN_STATE_DEBUG, RUN_STATE_SUSPENDED },
{ RUN_STATE_RUNNING, RUN_STATE_SUSPENDED },
{ RUN_STATE_SUSPENDED, RUN_STATE_RUNNING },
{ RUN_STATE_SUSPENDED, RUN_STATE_FINISH_MIGRATE },
{ RUN_STATE_WATCHDOG, RUN_STATE_RUNNING },
{ RUN_STATE_WATCHDOG, RUN_STATE_FINISH_MIGRATE },
{ RUN_STATE_MAX, RUN_STATE_MAX },
};
static bool runstate_valid_transitions[RUN_STATE_MAX][RUN_STATE_MAX];
bool runstate_check(RunState state)
{
return current_run_state == state;
}
static void runstate_init(void)
{
const RunStateTransition *p;
memset(&runstate_valid_transitions, 0, sizeof(runstate_valid_transitions));
for (p = &runstate_transitions_def[0]; p->from != RUN_STATE_MAX; p++) {
runstate_valid_transitions[p->from][p->to] = true;
}
}
/* This function will abort() on invalid state transitions */
void runstate_set(RunState new_state)
{
assert(new_state < RUN_STATE_MAX);
if (!runstate_valid_transitions[current_run_state][new_state]) {
fprintf(stderr, "ERROR: invalid runstate transition: '%s' -> '%s'\n",
RunState_lookup[current_run_state],
RunState_lookup[new_state]);
abort();
}
current_run_state = new_state;
}
int runstate_is_running(void)
{
return runstate_check(RUN_STATE_RUNNING);
}
StatusInfo *qmp_query_status(Error **errp)
{
StatusInfo *info = g_malloc0(sizeof(*info));
info->running = runstate_is_running();
info->singlestep = singlestep;
info->status = current_run_state;
return info;
}
/***********************************************************/
/* real time host monotonic timer */
/***********************************************************/
/* host time/date access */
void qemu_get_timedate(struct tm *tm, int offset)
{
time_t ti;
time(&ti);
ti += offset;
if (rtc_date_offset == -1) {
if (rtc_utc)
gmtime_r(&ti, tm);
else
localtime_r(&ti, tm);
} else {
ti -= rtc_date_offset;
gmtime_r(&ti, tm);
}
}
int qemu_timedate_diff(struct tm *tm)
{
time_t seconds;
if (rtc_date_offset == -1)
if (rtc_utc)
seconds = mktimegm(tm);
else {
struct tm tmp = *tm;
tmp.tm_isdst = -1; /* use timezone to figure it out */
seconds = mktime(&tmp);
}
else
seconds = mktimegm(tm) + rtc_date_offset;
return seconds - time(NULL);
}
void rtc_change_mon_event(struct tm *tm)
{
QObject *data;
data = qobject_from_jsonf("{ 'offset': %d }", qemu_timedate_diff(tm));
monitor_protocol_event(QEVENT_RTC_CHANGE, data);
qobject_decref(data);
}
static void configure_rtc_date_offset(const char *startdate, int legacy)
{
time_t rtc_start_date;
struct tm tm;
if (!strcmp(startdate, "now") && legacy) {
rtc_date_offset = -1;
} else {
if (sscanf(startdate, "%d-%d-%dT%d:%d:%d",
&tm.tm_year,
&tm.tm_mon,
&tm.tm_mday,
&tm.tm_hour,
&tm.tm_min,
&tm.tm_sec) == 6) {
/* OK */
} else if (sscanf(startdate, "%d-%d-%d",
&tm.tm_year,
&tm.tm_mon,
&tm.tm_mday) == 3) {
tm.tm_hour = 0;
tm.tm_min = 0;
tm.tm_sec = 0;
} else {
goto date_fail;
}
tm.tm_year -= 1900;
tm.tm_mon--;
rtc_start_date = mktimegm(&tm);
if (rtc_start_date == -1) {
date_fail:
fprintf(stderr, "Invalid date format. Valid formats are:\n"
"'2006-06-17T16:01:21' or '2006-06-17'\n");
exit(1);
}
rtc_date_offset = time(NULL) - rtc_start_date;
}
}
static void configure_rtc(QemuOpts *opts)
{
const char *value;
value = qemu_opt_get(opts, "base");
if (value) {
if (!strcmp(value, "utc")) {
rtc_utc = 1;
} else if (!strcmp(value, "localtime")) {
rtc_utc = 0;
} else {
configure_rtc_date_offset(value, 0);
}
}
value = qemu_opt_get(opts, "clock");
if (value) {
if (!strcmp(value, "host")) {
rtc_clock = host_clock;
} else if (!strcmp(value, "rt")) {
rtc_clock = rt_clock;
} else if (!strcmp(value, "vm")) {
rtc_clock = vm_clock;
} else {
fprintf(stderr, "qemu: invalid option value '%s'\n", value);
exit(1);
}
}
value = qemu_opt_get(opts, "driftfix");
if (value) {
if (!strcmp(value, "slew")) {
static GlobalProperty slew_lost_ticks[] = {
{
.driver = "mc146818rtc",
.property = "lost_tick_policy",
.value = "slew",
},
{ /* end of list */ }
};
qdev_prop_register_global_list(slew_lost_ticks);
} else if (!strcmp(value, "none")) {
/* discard is default */
} else {
fprintf(stderr, "qemu: invalid option value '%s'\n", value);
exit(1);
}
}
}
/***********************************************************/
/* Bluetooth support */
static int nb_hcis;
static int cur_hci;
static struct HCIInfo *hci_table[MAX_NICS];
static struct bt_vlan_s {
struct bt_scatternet_s net;
int id;
struct bt_vlan_s *next;
} *first_bt_vlan;
/* find or alloc a new bluetooth "VLAN" */
static struct bt_scatternet_s *qemu_find_bt_vlan(int id)
{
struct bt_vlan_s **pvlan, *vlan;
for (vlan = first_bt_vlan; vlan != NULL; vlan = vlan->next) {
if (vlan->id == id)
return &vlan->net;
}
vlan = g_malloc0(sizeof(struct bt_vlan_s));
vlan->id = id;
pvlan = &first_bt_vlan;
while (*pvlan != NULL)
pvlan = &(*pvlan)->next;
*pvlan = vlan;
return &vlan->net;
}
static void null_hci_send(struct HCIInfo *hci, const uint8_t *data, int len)
{
}
static int null_hci_addr_set(struct HCIInfo *hci, const uint8_t *bd_addr)
{
return -ENOTSUP;
}
static struct HCIInfo null_hci = {
.cmd_send = null_hci_send,
.sco_send = null_hci_send,
.acl_send = null_hci_send,
.bdaddr_set = null_hci_addr_set,
};
struct HCIInfo *qemu_next_hci(void)
{
if (cur_hci == nb_hcis)
return &null_hci;
return hci_table[cur_hci++];
}
static struct HCIInfo *hci_init(const char *str)
{
char *endp;
struct bt_scatternet_s *vlan = 0;
if (!strcmp(str, "null"))
/* null */
return &null_hci;
else if (!strncmp(str, "host", 4) && (str[4] == '\0' || str[4] == ':'))
/* host[:hciN] */
return bt_host_hci(str[4] ? str + 5 : "hci0");
else if (!strncmp(str, "hci", 3)) {
/* hci[,vlan=n] */
if (str[3]) {
if (!strncmp(str + 3, ",vlan=", 6)) {
vlan = qemu_find_bt_vlan(strtol(str + 9, &endp, 0));
if (*endp)
vlan = 0;
}
} else
vlan = qemu_find_bt_vlan(0);
if (vlan)
return bt_new_hci(vlan);
}
fprintf(stderr, "qemu: Unknown bluetooth HCI `%s'.\n", str);
return 0;
}
static int bt_hci_parse(const char *str)
{
struct HCIInfo *hci;
bdaddr_t bdaddr;
if (nb_hcis >= MAX_NICS) {
fprintf(stderr, "qemu: Too many bluetooth HCIs (max %i).\n", MAX_NICS);
return -1;
}
hci = hci_init(str);
if (!hci)
return -1;
bdaddr.b[0] = 0x52;
bdaddr.b[1] = 0x54;
bdaddr.b[2] = 0x00;
bdaddr.b[3] = 0x12;
bdaddr.b[4] = 0x34;
bdaddr.b[5] = 0x56 + nb_hcis;
hci->bdaddr_set(hci, bdaddr.b);
hci_table[nb_hcis++] = hci;
return 0;
}
static void bt_vhci_add(int vlan_id)
{
struct bt_scatternet_s *vlan = qemu_find_bt_vlan(vlan_id);
if (!vlan->slave)
fprintf(stderr, "qemu: warning: adding a VHCI to "
"an empty scatternet %i\n", vlan_id);
bt_vhci_init(bt_new_hci(vlan));
}
static struct bt_device_s *bt_device_add(const char *opt)
{
struct bt_scatternet_s *vlan;
int vlan_id = 0;
char *endp = strstr(opt, ",vlan=");
int len = (endp ? endp - opt : strlen(opt)) + 1;
char devname[10];
pstrcpy(devname, MIN(sizeof(devname), len), opt);
if (endp) {
vlan_id = strtol(endp + 6, &endp, 0);
if (*endp) {
fprintf(stderr, "qemu: unrecognised bluetooth vlan Id\n");
return 0;
}
}
vlan = qemu_find_bt_vlan(vlan_id);
if (!vlan->slave)
fprintf(stderr, "qemu: warning: adding a slave device to "
"an empty scatternet %i\n", vlan_id);
if (!strcmp(devname, "keyboard"))
return bt_keyboard_init(vlan);
fprintf(stderr, "qemu: unsupported bluetooth device `%s'\n", devname);
return 0;
}
static int bt_parse(const char *opt)
{
const char *endp, *p;
int vlan;
if (strstart(opt, "hci", &endp)) {
if (!*endp || *endp == ',') {
if (*endp)
if (!strstart(endp, ",vlan=", 0))
opt = endp + 1;
return bt_hci_parse(opt);
}
} else if (strstart(opt, "vhci", &endp)) {
if (!*endp || *endp == ',') {
if (*endp) {
if (strstart(endp, ",vlan=", &p)) {
vlan = strtol(p, (char **) &endp, 0);
if (*endp) {
fprintf(stderr, "qemu: bad scatternet '%s'\n", p);
return 1;
}
} else {
fprintf(stderr, "qemu: bad parameter '%s'\n", endp + 1);
return 1;
}
} else
vlan = 0;
bt_vhci_add(vlan);
return 0;
}
} else if (strstart(opt, "device:", &endp))
return !bt_device_add(endp);
fprintf(stderr, "qemu: bad bluetooth parameter '%s'\n", opt);
return 1;
}
static int parse_sandbox(QemuOpts *opts, void *opaque)
{
/* FIXME: change this to true for 1.3 */
if (qemu_opt_get_bool(opts, "enable", false)) {
#ifdef CONFIG_SECCOMP
if (seccomp_start() < 0) {
qerror_report(ERROR_CLASS_GENERIC_ERROR,
"failed to install seccomp syscall filter in the kernel");
return -1;
}
#else
qerror_report(ERROR_CLASS_GENERIC_ERROR,
"sandboxing request but seccomp is not compiled into this build");
return -1;
#endif
}
return 0;
}
/*********QEMU USB setting******/
bool usb_enabled(bool default_usb)
{
QemuOpts *mach_opts;
mach_opts = qemu_opts_find(qemu_find_opts("machine"), 0);
if (mach_opts) {
return qemu_opt_get_bool(mach_opts, "usb", default_usb);
}
return default_usb;
}
#ifndef _WIN32
static int parse_add_fd(QemuOpts *opts, void *opaque)
{
int fd, dupfd, flags;
int64_t fdset_id;
const char *fd_opaque = NULL;
fd = qemu_opt_get_number(opts, "fd", -1);
fdset_id = qemu_opt_get_number(opts, "set", -1);
fd_opaque = qemu_opt_get(opts, "opaque");
if (fd < 0) {
qerror_report(ERROR_CLASS_GENERIC_ERROR,
"fd option is required and must be non-negative");
return -1;
}
if (fd <= STDERR_FILENO) {
qerror_report(ERROR_CLASS_GENERIC_ERROR,
"fd cannot be a standard I/O stream");
return -1;
}
/*
* All fds inherited across exec() necessarily have FD_CLOEXEC
* clear, while qemu sets FD_CLOEXEC on all other fds used internally.
*/
flags = fcntl(fd, F_GETFD);
if (flags == -1 || (flags & FD_CLOEXEC)) {
qerror_report(ERROR_CLASS_GENERIC_ERROR,
"fd is not valid or already in use");
return -1;
}
if (fdset_id < 0) {
qerror_report(ERROR_CLASS_GENERIC_ERROR,
"set option is required and must be non-negative");
return -1;
}
#ifdef F_DUPFD_CLOEXEC
dupfd = fcntl(fd, F_DUPFD_CLOEXEC, 0);
#else
dupfd = dup(fd);
if (dupfd != -1) {
qemu_set_cloexec(dupfd);
}
#endif
if (dupfd == -1) {
qerror_report(ERROR_CLASS_GENERIC_ERROR,
"Error duplicating fd: %s", strerror(errno));
return -1;
}
/* add the duplicate fd, and optionally the opaque string, to the fd set */
monitor_fdset_add_fd(dupfd, true, fdset_id, fd_opaque ? true : false,
fd_opaque, NULL);
return 0;
}
static int cleanup_add_fd(QemuOpts *opts, void *opaque)
{
int fd;
fd = qemu_opt_get_number(opts, "fd", -1);
close(fd);
return 0;
}
#endif
/***********************************************************/
/* QEMU Block devices */
#define HD_OPTS "media=disk"
#define CDROM_OPTS "media=cdrom"
#define FD_OPTS ""
#define PFLASH_OPTS ""
#define MTD_OPTS ""
#define SD_OPTS ""
static int drive_init_func(QemuOpts *opts, void *opaque)
{
BlockInterfaceType *block_default_type = opaque;
return drive_init(opts, *block_default_type) == NULL;
}
static int drive_enable_snapshot(QemuOpts *opts, void *opaque)
{
if (NULL == qemu_opt_get(opts, "snapshot")) {
qemu_opt_set(opts, "snapshot", "on");
}
return 0;
}
static void default_drive(int enable, int snapshot, BlockInterfaceType type,
int index, const char *optstr)
{
QemuOpts *opts;
if (!enable || drive_get_by_index(type, index)) {
return;
}
opts = drive_add(type, index, NULL, optstr);
if (snapshot) {
drive_enable_snapshot(opts, NULL);
}
if (!drive_init(opts, type)) {
exit(1);
}
}
void qemu_register_boot_set(QEMUBootSetHandler *func, void *opaque)
{
boot_set_handler = func;
boot_set_opaque = opaque;
}
int qemu_boot_set(const char *boot_devices)
{
if (!boot_set_handler) {
return -EINVAL;
}
return boot_set_handler(boot_set_opaque, boot_devices);
}
static void validate_bootdevices(char *devices)
{
/* We just do some generic consistency checks */
const char *p;
int bitmap = 0;
for (p = devices; *p != '\0'; p++) {
/* Allowed boot devices are:
* a-b: floppy disk drives
* c-f: IDE disk drives
* g-m: machine implementation dependent drives
* n-p: network devices
* It's up to each machine implementation to check if the given boot
* devices match the actual hardware implementation and firmware
* features.
*/
if (*p < 'a' || *p > 'p') {
fprintf(stderr, "Invalid boot device '%c'\n", *p);
exit(1);
}
if (bitmap & (1 << (*p - 'a'))) {
fprintf(stderr, "Boot device '%c' was given twice\n", *p);
exit(1);
}
bitmap |= 1 << (*p - 'a');
}
}
static void restore_boot_devices(void *opaque)
{
char *standard_boot_devices = opaque;
static int first = 1;
/* Restore boot order and remove ourselves after the first boot */
if (first) {
first = 0;
return;
}
qemu_boot_set(standard_boot_devices);
qemu_unregister_reset(restore_boot_devices, standard_boot_devices);
g_free(standard_boot_devices);
}
void add_boot_device_path(int32_t bootindex, DeviceState *dev,
const char *suffix)
{
FWBootEntry *node, *i;
if (bootindex < 0) {
return;
}
assert(dev != NULL || suffix != NULL);
node = g_malloc0(sizeof(FWBootEntry));
node->bootindex = bootindex;
node->suffix = suffix ? g_strdup(suffix) : NULL;
node->dev = dev;
QTAILQ_FOREACH(i, &fw_boot_order, link) {
if (i->bootindex == bootindex) {
fprintf(stderr, "Two devices with same boot index %d\n", bootindex);
exit(1);
} else if (i->bootindex < bootindex) {
continue;
}
QTAILQ_INSERT_BEFORE(i, node, link);
return;
}
QTAILQ_INSERT_TAIL(&fw_boot_order, node, link);
}
/*
* This function returns null terminated string that consist of new line
* separated device paths.
*
* memory pointed by "size" is assigned total length of the array in bytes
*
*/
char *get_boot_devices_list(size_t *size)
{
FWBootEntry *i;
size_t total = 0;
char *list = NULL;
QTAILQ_FOREACH(i, &fw_boot_order, link) {
char *devpath = NULL, *bootpath;
size_t len;
if (i->dev) {
devpath = qdev_get_fw_dev_path(i->dev);
assert(devpath);
}
if (i->suffix && devpath) {
size_t bootpathlen = strlen(devpath) + strlen(i->suffix) + 1;
bootpath = g_malloc(bootpathlen);
snprintf(bootpath, bootpathlen, "%s%s", devpath, i->suffix);
g_free(devpath);
} else if (devpath) {
bootpath = devpath;
} else {
assert(i->suffix);
bootpath = g_strdup(i->suffix);
}
if (total) {
list[total-1] = '\n';
}
len = strlen(bootpath) + 1;
list = g_realloc(list, total + len);
memcpy(&list[total], bootpath, len);
total += len;
g_free(bootpath);
}
*size = total;
return list;
}
static void numa_node_parse_cpus(int nodenr, const char *cpus)
{
char *endptr;
unsigned long long value, endvalue;
/* Empty CPU range strings will be considered valid, they will simply
* not set any bit in the CPU bitmap.
*/
if (!*cpus) {
return;
}
if (parse_uint(cpus, &value, &endptr, 10) < 0) {
goto error;
}
if (*endptr == '-') {
if (parse_uint_full(endptr + 1, &endvalue, 10) < 0) {
goto error;
}
} else if (*endptr == '\0') {
endvalue = value;
} else {
goto error;
}
if (endvalue >= MAX_CPUMASK_BITS) {
endvalue = MAX_CPUMASK_BITS - 1;
fprintf(stderr,
"qemu: NUMA: A max of %d VCPUs are supported\n",
MAX_CPUMASK_BITS);
}
if (endvalue < value) {
goto error;
}
bitmap_set(node_cpumask[nodenr], value, endvalue-value+1);
return;
error:
fprintf(stderr, "qemu: Invalid NUMA CPU range: %s\n", cpus);
exit(1);
}
static void numa_add(const char *optarg)
{
char option[128];
char *endptr;
unsigned long long nodenr;
optarg = get_opt_name(option, 128, optarg, ',');
if (*optarg == ',') {
optarg++;
}
if (!strcmp(option, "node")) {
if (nb_numa_nodes >= MAX_NODES) {
fprintf(stderr, "qemu: too many NUMA nodes\n");
exit(1);
}
if (get_param_value(option, 128, "nodeid", optarg) == 0) {
nodenr = nb_numa_nodes;
} else {
if (parse_uint_full(option, &nodenr, 10) < 0) {
fprintf(stderr, "qemu: Invalid NUMA nodeid: %s\n", option);
exit(1);
}
}
if (nodenr >= MAX_NODES) {
fprintf(stderr, "qemu: invalid NUMA nodeid: %llu\n", nodenr);
exit(1);
}
if (get_param_value(option, 128, "mem", optarg) == 0) {
node_mem[nodenr] = 0;
} else {
int64_t sval;
sval = strtosz(option, &endptr);
if (sval < 0 || *endptr) {
fprintf(stderr, "qemu: invalid numa mem size: %s\n", optarg);
exit(1);
}
node_mem[nodenr] = sval;
}
if (get_param_value(option, 128, "cpus", optarg) != 0) {
numa_node_parse_cpus(nodenr, option);
}
nb_numa_nodes++;
} else {
fprintf(stderr, "Invalid -numa option: %s\n", option);
exit(1);
}
}
static void smp_parse(const char *optarg)
{
int smp, sockets = 0, threads = 0, cores = 0;
char *endptr;
char option[128];
smp = strtoul(optarg, &endptr, 10);
if (endptr != optarg) {
if (*endptr == ',') {
endptr++;
}
}
if (get_param_value(option, 128, "sockets", endptr) != 0)
sockets = strtoull(option, NULL, 10);
if (get_param_value(option, 128, "cores", endptr) != 0)
cores = strtoull(option, NULL, 10);
if (get_param_value(option, 128, "threads", endptr) != 0)
threads = strtoull(option, NULL, 10);
if (get_param_value(option, 128, "maxcpus", endptr) != 0)
max_cpus = strtoull(option, NULL, 10);
/* compute missing values, prefer sockets over cores over threads */
if (smp == 0 || sockets == 0) {
sockets = sockets > 0 ? sockets : 1;
cores = cores > 0 ? cores : 1;
threads = threads > 0 ? threads : 1;
if (smp == 0) {
smp = cores * threads * sockets;
}
} else {
if (cores == 0) {
threads = threads > 0 ? threads : 1;
cores = smp / (sockets * threads);
} else {
threads = smp / (cores * sockets);
}
}
smp_cpus = smp;
smp_cores = cores > 0 ? cores : 1;
smp_threads = threads > 0 ? threads : 1;
if (max_cpus == 0)
max_cpus = smp_cpus;
}
/***********************************************************/
/* USB devices */
static int usb_device_add(const char *devname)
{
const char *p;
USBDevice *dev = NULL;
if (!usb_enabled(false)) {
return -1;
}
/* drivers with .usbdevice_name entry in USBDeviceInfo */
dev = usbdevice_create(devname);
if (dev)
goto done;
/* the other ones */
#ifndef CONFIG_LINUX
/* only the linux version is qdev-ified, usb-bsd still needs this */
if (strstart(devname, "host:", &p)) {
dev = usb_host_device_open(usb_bus_find(-1), p);
} else
#endif
if (!strcmp(devname, "bt") || strstart(devname, "bt:", &p)) {
dev = usb_bt_init(usb_bus_find(-1),
devname[2] ? hci_init(p)
: bt_new_hci(qemu_find_bt_vlan(0)));
} else {
return -1;
}
if (!dev)
return -1;
done:
return 0;
}
static int usb_device_del(const char *devname)
{
int bus_num, addr;
const char *p;
if (strstart(devname, "host:", &p)) {
return -1;
}
if (!usb_enabled(false)) {
return -1;
}
p = strchr(devname, '.');
if (!p)
return -1;
bus_num = strtoul(devname, NULL, 0);
addr = strtoul(p + 1, NULL, 0);
return usb_device_delete_addr(bus_num, addr);
}
static int usb_parse(const char *cmdline)
{
int r;
r = usb_device_add(cmdline);
if (r < 0) {
fprintf(stderr, "qemu: could not add USB device '%s'\n", cmdline);
}
return r;
}
void do_usb_add(Monitor *mon, const QDict *qdict)
{
const char *devname = qdict_get_str(qdict, "devname");
if (usb_device_add(devname) < 0) {
error_report("could not add USB device '%s'", devname);
}
}
void do_usb_del(Monitor *mon, const QDict *qdict)
{
const char *devname = qdict_get_str(qdict, "devname");
if (usb_device_del(devname) < 0) {
error_report("could not delete USB device '%s'", devname);
}
}
/***********************************************************/
/* PCMCIA/Cardbus */
static struct pcmcia_socket_entry_s {
PCMCIASocket *socket;
struct pcmcia_socket_entry_s *next;
} *pcmcia_sockets = 0;
void pcmcia_socket_register(PCMCIASocket *socket)
{
struct pcmcia_socket_entry_s *entry;
entry = g_malloc(sizeof(struct pcmcia_socket_entry_s));
entry->socket = socket;
entry->next = pcmcia_sockets;
pcmcia_sockets = entry;
}
void pcmcia_socket_unregister(PCMCIASocket *socket)
{
struct pcmcia_socket_entry_s *entry, **ptr;
ptr = &pcmcia_sockets;
for (entry = *ptr; entry; ptr = &entry->next, entry = *ptr)
if (entry->socket == socket) {
*ptr = entry->next;
g_free(entry);
}
}
void pcmcia_info(Monitor *mon, const QDict *qdict)
{
struct pcmcia_socket_entry_s *iter;
if (!pcmcia_sockets)
monitor_printf(mon, "No PCMCIA sockets\n");
for (iter = pcmcia_sockets; iter; iter = iter->next)
monitor_printf(mon, "%s: %s\n", iter->socket->slot_string,
iter->socket->attached ? iter->socket->card_string :
"Empty");
}
/***********************************************************/
/* machine registration */
static QEMUMachine *first_machine = NULL;
QEMUMachine *current_machine = NULL;
int qemu_register_machine(QEMUMachine *m)
{
QEMUMachine **pm;
pm = &first_machine;
while (*pm != NULL)
pm = &(*pm)->next;
m->next = NULL;
*pm = m;
return 0;
}
static QEMUMachine *find_machine(const char *name)
{
QEMUMachine *m;
for(m = first_machine; m != NULL; m = m->next) {
if (!strcmp(m->name, name))
return m;
if (m->alias && !strcmp(m->alias, name))
return m;
}
return NULL;
}
QEMUMachine *find_default_machine(void)
{
QEMUMachine *m;
for(m = first_machine; m != NULL; m = m->next) {
if (m->is_default) {
return m;
}
}
return NULL;
}
MachineInfoList *qmp_query_machines(Error **errp)
{
MachineInfoList *mach_list = NULL;
QEMUMachine *m;
for (m = first_machine; m; m = m->next) {
MachineInfoList *entry;
MachineInfo *info;
info = g_malloc0(sizeof(*info));
if (m->is_default) {
info->has_is_default = true;
info->is_default = true;
}
if (m->alias) {
info->has_alias = true;
info->alias = g_strdup(m->alias);
}
info->name = g_strdup(m->name);
entry = g_malloc0(sizeof(*entry));
entry->value = info;
entry->next = mach_list;
mach_list = entry;
}
return mach_list;
}
/***********************************************************/
/* main execution loop */
static void gui_update(void *opaque)
{
uint64_t interval = GUI_REFRESH_INTERVAL;
DisplayState *ds = opaque;
DisplayChangeListener *dcl;
dpy_refresh(ds);
QLIST_FOREACH(dcl, &ds->listeners, next) {
if (dcl->gui_timer_interval &&
dcl->gui_timer_interval < interval)
interval = dcl->gui_timer_interval;
}
qemu_mod_timer(ds->gui_timer, interval + qemu_get_clock_ms(rt_clock));
}
void gui_setup_refresh(DisplayState *ds)
{
DisplayChangeListener *dcl;
bool need_timer = false;
bool have_gfx = false;
bool have_text = false;
QLIST_FOREACH(dcl, &ds->listeners, next) {
if (dcl->dpy_refresh != NULL) {
need_timer = true;
}
if (dcl->dpy_gfx_update != NULL) {
have_gfx = true;
}
if (dcl->dpy_text_update != NULL) {
have_text = true;
}
}
if (need_timer && ds->gui_timer == NULL) {
ds->gui_timer = qemu_new_timer_ms(rt_clock, gui_update, ds);
qemu_mod_timer(ds->gui_timer, qemu_get_clock_ms(rt_clock));
}
if (!need_timer && ds->gui_timer != NULL) {
qemu_del_timer(ds->gui_timer);
qemu_free_timer(ds->gui_timer);
ds->gui_timer = NULL;
}
ds->have_gfx = have_gfx;
ds->have_text = have_text;
}
struct vm_change_state_entry {
VMChangeStateHandler *cb;
void *opaque;
QLIST_ENTRY (vm_change_state_entry) entries;
};
static QLIST_HEAD(vm_change_state_head, vm_change_state_entry) vm_change_state_head;
VMChangeStateEntry *qemu_add_vm_change_state_handler(VMChangeStateHandler *cb,
void *opaque)
{
VMChangeStateEntry *e;
e = g_malloc0(sizeof (*e));
e->cb = cb;
e->opaque = opaque;
QLIST_INSERT_HEAD(&vm_change_state_head, e, entries);
return e;
}
void qemu_del_vm_change_state_handler(VMChangeStateEntry *e)
{
QLIST_REMOVE (e, entries);
g_free (e);
}
void vm_state_notify(int running, RunState state)
{
VMChangeStateEntry *e;
trace_vm_state_notify(running, state);
for (e = vm_change_state_head.lh_first; e; e = e->entries.le_next) {
e->cb(e->opaque, running, state);
}
}
void vm_start(void)
{
if (!runstate_is_running()) {
cpu_enable_ticks();
runstate_set(RUN_STATE_RUNNING);
vm_state_notify(1, RUN_STATE_RUNNING);
resume_all_vcpus();
monitor_protocol_event(QEVENT_RESUME, NULL);
}
}
/* reset/shutdown handler */
typedef struct QEMUResetEntry {
QTAILQ_ENTRY(QEMUResetEntry) entry;
QEMUResetHandler *func;
void *opaque;
} QEMUResetEntry;
static QTAILQ_HEAD(reset_handlers, QEMUResetEntry) reset_handlers =
QTAILQ_HEAD_INITIALIZER(reset_handlers);
static int reset_requested;
static int shutdown_requested, shutdown_signal = -1;
static pid_t shutdown_pid;
static int powerdown_requested;
static int debug_requested;
static int suspend_requested;
static int wakeup_requested;
static NotifierList powerdown_notifiers =
NOTIFIER_LIST_INITIALIZER(powerdown_notifiers);
static NotifierList suspend_notifiers =
NOTIFIER_LIST_INITIALIZER(suspend_notifiers);
static NotifierList wakeup_notifiers =
NOTIFIER_LIST_INITIALIZER(wakeup_notifiers);
static uint32_t wakeup_reason_mask = ~0;
static RunState vmstop_requested = RUN_STATE_MAX;
int qemu_shutdown_requested_get(void)
{
return shutdown_requested;
}
int qemu_reset_requested_get(void)
{
return reset_requested;
}
static int qemu_shutdown_requested(void)
{
int r = shutdown_requested;
shutdown_requested = 0;
return r;
}
static void qemu_kill_report(void)
{
if (!qtest_enabled() && shutdown_signal != -1) {
fprintf(stderr, "qemu: terminating on signal %d", shutdown_signal);
if (shutdown_pid == 0) {
/* This happens for eg ^C at the terminal, so it's worth
* avoiding printing an odd message in that case.
*/
fputc('\n', stderr);
} else {
fprintf(stderr, " from pid " FMT_pid "\n", shutdown_pid);
}
shutdown_signal = -1;
}
}
static int qemu_reset_requested(void)
{
int r = reset_requested;
reset_requested = 0;
return r;
}
static int qemu_suspend_requested(void)
{
int r = suspend_requested;
suspend_requested = 0;
return r;
}
static int qemu_wakeup_requested(void)
{
int r = wakeup_requested;
wakeup_requested = 0;
return r;
}
static int qemu_powerdown_requested(void)
{
int r = powerdown_requested;
powerdown_requested = 0;
return r;
}
static int qemu_debug_requested(void)
{
int r = debug_requested;
debug_requested = 0;
return r;
}
/* We use RUN_STATE_MAX but any invalid value will do */
static bool qemu_vmstop_requested(RunState *r)
{
if (vmstop_requested < RUN_STATE_MAX) {
*r = vmstop_requested;
vmstop_requested = RUN_STATE_MAX;
return true;
}
return false;
}
void qemu_register_reset(QEMUResetHandler *func, void *opaque)
{
QEMUResetEntry *re = g_malloc0(sizeof(QEMUResetEntry));
re->func = func;
re->opaque = opaque;
QTAILQ_INSERT_TAIL(&reset_handlers, re, entry);
}
void qemu_unregister_reset(QEMUResetHandler *func, void *opaque)
{
QEMUResetEntry *re;
QTAILQ_FOREACH(re, &reset_handlers, entry) {
if (re->func == func && re->opaque == opaque) {
QTAILQ_REMOVE(&reset_handlers, re, entry);
g_free(re);
return;
}
}
}
void qemu_devices_reset(void)
{
QEMUResetEntry *re, *nre;
/* reset all devices */
QTAILQ_FOREACH_SAFE(re, &reset_handlers, entry, nre) {
re->func(re->opaque);
}
}
void qemu_system_reset(bool report)
{
if (current_machine && current_machine->reset) {
current_machine->reset();
} else {
qemu_devices_reset();
}
if (report) {
monitor_protocol_event(QEVENT_RESET, NULL);
}
cpu_synchronize_all_post_reset();
}
void qemu_system_reset_request(void)
{
if (no_reboot) {
shutdown_requested = 1;
} else {
reset_requested = 1;
}
cpu_stop_current();
qemu_notify_event();
}
static void qemu_system_suspend(void)
{
pause_all_vcpus();
notifier_list_notify(&suspend_notifiers, NULL);
runstate_set(RUN_STATE_SUSPENDED);
monitor_protocol_event(QEVENT_SUSPEND, NULL);
}
void qemu_system_suspend_request(void)
{
if (runstate_check(RUN_STATE_SUSPENDED)) {
return;
}
suspend_requested = 1;
cpu_stop_current();
qemu_notify_event();
}
void qemu_register_suspend_notifier(Notifier *notifier)
{
notifier_list_add(&suspend_notifiers, notifier);
}
void qemu_system_wakeup_request(WakeupReason reason)
{
if (!runstate_check(RUN_STATE_SUSPENDED)) {
return;
}
if (!(wakeup_reason_mask & (1 << reason))) {
return;
}
runstate_set(RUN_STATE_RUNNING);
notifier_list_notify(&wakeup_notifiers, &reason);
wakeup_requested = 1;
qemu_notify_event();
}
void qemu_system_wakeup_enable(WakeupReason reason, bool enabled)
{
if (enabled) {
wakeup_reason_mask |= (1 << reason);
} else {
wakeup_reason_mask &= ~(1 << reason);
}
}
void qemu_register_wakeup_notifier(Notifier *notifier)
{
notifier_list_add(&wakeup_notifiers, notifier);
}
void qemu_system_killed(int signal, pid_t pid)
{
shutdown_signal = signal;
shutdown_pid = pid;
no_shutdown = 0;
qemu_system_shutdown_request();
}
void qemu_system_shutdown_request(void)
{
shutdown_requested = 1;
qemu_notify_event();
}
static void qemu_system_powerdown(void)
{
monitor_protocol_event(QEVENT_POWERDOWN, NULL);
notifier_list_notify(&powerdown_notifiers, NULL);
}
void qemu_system_powerdown_request(void)
{
powerdown_requested = 1;
qemu_notify_event();
}
void qemu_register_powerdown_notifier(Notifier *notifier)
{
notifier_list_add(&powerdown_notifiers, notifier);
}
void qemu_system_debug_request(void)
{
debug_requested = 1;
qemu_notify_event();
}
void qemu_system_vmstop_request(RunState state)
{
vmstop_requested = state;
qemu_notify_event();
}
static bool main_loop_should_exit(void)
{
RunState r;
if (qemu_debug_requested()) {
vm_stop(RUN_STATE_DEBUG);
}
if (qemu_suspend_requested()) {
qemu_system_suspend();
}
if (qemu_shutdown_requested()) {
qemu_kill_report();
monitor_protocol_event(QEVENT_SHUTDOWN, NULL);
if (no_shutdown) {
vm_stop(RUN_STATE_SHUTDOWN);
} else {
return true;
}
}
if (qemu_reset_requested()) {
pause_all_vcpus();
cpu_synchronize_all_states();
qemu_system_reset(VMRESET_REPORT);
resume_all_vcpus();
if (runstate_check(RUN_STATE_INTERNAL_ERROR) ||
runstate_check(RUN_STATE_SHUTDOWN)) {
runstate_set(RUN_STATE_PAUSED);
}
}
if (qemu_wakeup_requested()) {
pause_all_vcpus();
cpu_synchronize_all_states();
qemu_system_reset(VMRESET_SILENT);
resume_all_vcpus();
monitor_protocol_event(QEVENT_WAKEUP, NULL);
}
if (qemu_powerdown_requested()) {
qemu_system_powerdown();
}
if (qemu_vmstop_requested(&r)) {
vm_stop(r);
}
return false;
}
static void main_loop(void)
{
bool nonblocking;
int last_io = 0;
#ifdef CONFIG_PROFILER
int64_t ti;
#endif
do {
nonblocking = !kvm_enabled() && last_io > 0;
#ifdef CONFIG_PROFILER
ti = profile_getclock();
#endif
last_io = main_loop_wait(nonblocking);
#ifdef CONFIG_PROFILER
dev_time += profile_getclock() - ti;
#endif
} while (!main_loop_should_exit());
}
static void version(void)
{
printf("QEMU emulator version " QEMU_VERSION QEMU_PKGVERSION ", Copyright (c) 2003-2008 Fabrice Bellard\n");
}
static void help(int exitcode)
{
version();
printf("usage: %s [options] [disk_image]\n\n"
"'disk_image' is a raw hard disk image for IDE hard disk 0\n\n",
error_get_progname());
#define QEMU_OPTIONS_GENERATE_HELP
#include "qemu-options-wrapper.h"
printf("\nDuring emulation, the following keys are useful:\n"
"ctrl-alt-f toggle full screen\n"
"ctrl-alt-n switch to virtual console 'n'\n"
"ctrl-alt toggle mouse and keyboard grab\n"
"\n"
"When using -nographic, press 'ctrl-a h' to get some help.\n");
exit(exitcode);
}
#define HAS_ARG 0x0001
typedef struct QEMUOption {
const char *name;
int flags;
int index;
uint32_t arch_mask;
} QEMUOption;
static const QEMUOption qemu_options[] = {
{ "h", 0, QEMU_OPTION_h, QEMU_ARCH_ALL },
#define QEMU_OPTIONS_GENERATE_OPTIONS
#include "qemu-options-wrapper.h"
{ NULL },
};
static bool vga_available(void)
{
return object_class_by_name("VGA") || object_class_by_name("isa-vga");
}
static bool cirrus_vga_available(void)
{
return object_class_by_name("cirrus-vga")
|| object_class_by_name("isa-cirrus-vga");
}
static bool vmware_vga_available(void)
{
return object_class_by_name("vmware-svga");
}
static bool qxl_vga_available(void)
{
return object_class_by_name("qxl-vga");
}
static void select_vgahw (const char *p)
{
const char *opts;
vga_interface_type = VGA_NONE;
if (strstart(p, "std", &opts)) {
if (vga_available()) {
vga_interface_type = VGA_STD;
} else {
fprintf(stderr, "Error: standard VGA not available\n");
exit(0);
}
} else if (strstart(p, "cirrus", &opts)) {
if (cirrus_vga_available()) {
vga_interface_type = VGA_CIRRUS;
} else {
fprintf(stderr, "Error: Cirrus VGA not available\n");
exit(0);
}
} else if (strstart(p, "vmware", &opts)) {
if (vmware_vga_available()) {
vga_interface_type = VGA_VMWARE;
} else {
fprintf(stderr, "Error: VMWare SVGA not available\n");
exit(0);
}
} else if (strstart(p, "xenfb", &opts)) {
vga_interface_type = VGA_XENFB;
} else if (strstart(p, "qxl", &opts)) {
if (qxl_vga_available()) {
vga_interface_type = VGA_QXL;
} else {
fprintf(stderr, "Error: QXL VGA not available\n");
exit(0);
}
} else if (!strstart(p, "none", &opts)) {
invalid_vga:
fprintf(stderr, "Unknown vga type: %s\n", p);
exit(1);
}
while (*opts) {
const char *nextopt;
if (strstart(opts, ",retrace=", &nextopt)) {
opts = nextopt;
if (strstart(opts, "dumb", &nextopt))
vga_retrace_method = VGA_RETRACE_DUMB;
else if (strstart(opts, "precise", &nextopt))
vga_retrace_method = VGA_RETRACE_PRECISE;
else goto invalid_vga;
} else goto invalid_vga;
opts = nextopt;
}
}
static DisplayType select_display(const char *p)
{
const char *opts;
DisplayType display = DT_DEFAULT;
if (strstart(p, "sdl", &opts)) {
#ifdef CONFIG_SDL
display = DT_SDL;
while (*opts) {
const char *nextopt;
if (strstart(opts, ",frame=", &nextopt)) {
opts = nextopt;
if (strstart(opts, "on", &nextopt)) {
no_frame = 0;
} else if (strstart(opts, "off", &nextopt)) {
no_frame = 1;
} else {
goto invalid_sdl_args;
}
} else if (strstart(opts, ",alt_grab=", &nextopt)) {
opts = nextopt;
if (strstart(opts, "on", &nextopt)) {
alt_grab = 1;
} else if (strstart(opts, "off", &nextopt)) {
alt_grab = 0;
} else {
goto invalid_sdl_args;
}
} else if (strstart(opts, ",ctrl_grab=", &nextopt)) {
opts = nextopt;
if (strstart(opts, "on", &nextopt)) {
ctrl_grab = 1;
} else if (strstart(opts, "off", &nextopt)) {
ctrl_grab = 0;
} else {
goto invalid_sdl_args;
}
} else if (strstart(opts, ",window_close=", &nextopt)) {
opts = nextopt;
if (strstart(opts, "on", &nextopt)) {
no_quit = 0;
} else if (strstart(opts, "off", &nextopt)) {
no_quit = 1;
} else {
goto invalid_sdl_args;
}
} else {
invalid_sdl_args:
fprintf(stderr, "Invalid SDL option string: %s\n", p);
exit(1);
}
opts = nextopt;
}
#else
fprintf(stderr, "SDL support is disabled\n");
exit(1);
#endif
} else if (strstart(p, "vnc", &opts)) {
#ifdef CONFIG_VNC
display_remote++;
if (*opts) {
const char *nextopt;
if (strstart(opts, "=", &nextopt)) {
vnc_display = nextopt;
}
}
if (!vnc_display) {
fprintf(stderr, "VNC requires a display argument vnc=<display>\n");
exit(1);
}
#else
fprintf(stderr, "VNC support is disabled\n");
exit(1);
#endif
} else if (strstart(p, "curses", &opts)) {
#ifdef CONFIG_CURSES
display = DT_CURSES;
#else
fprintf(stderr, "Curses support is disabled\n");
exit(1);
#endif
} else if (strstart(p, "gtk", &opts)) {
#ifdef CONFIG_GTK
display = DT_GTK;
#else
fprintf(stderr, "GTK support is disabled\n");
exit(1);
#endif
} else if (strstart(p, "none", &opts)) {
display = DT_NONE;
} else {
fprintf(stderr, "Unknown display type: %s\n", p);
exit(1);
}
return display;
}
static int balloon_parse(const char *arg)
{
QemuOpts *opts;
if (strcmp(arg, "none") == 0) {
return 0;
}
if (!strncmp(arg, "virtio", 6)) {
if (arg[6] == ',') {
/* have params -> parse them */
opts = qemu_opts_parse(qemu_find_opts("device"), arg+7, 0);
if (!opts)
return -1;
} else {
/* create empty opts */
opts = qemu_opts_create_nofail(qemu_find_opts("device"));
}
qemu_opt_set(opts, "driver", "virtio-balloon");
return 0;
}
return -1;
}
char *qemu_find_file(int type, const char *name)
{
int i;
const char *subdir;
char *buf;
/* Try the name as a straight path first */
if (access(name, R_OK) == 0) {
trace_load_file(name, name);
return g_strdup(name);
}
switch (type) {
case QEMU_FILE_TYPE_BIOS:
subdir = "";
break;
case QEMU_FILE_TYPE_KEYMAP:
subdir = "keymaps/";
break;
default:
abort();
}
for (i = 0; i < data_dir_idx; i++) {
buf = g_strdup_printf("%s/%s%s", data_dir[i], subdir, name);
if (access(buf, R_OK) == 0) {
trace_load_file(name, buf);
return buf;
}
g_free(buf);
}
return NULL;
}
static int device_help_func(QemuOpts *opts, void *opaque)
{
return qdev_device_help(opts);
}
static int device_init_func(QemuOpts *opts, void *opaque)
{
DeviceState *dev;
dev = qdev_device_add(opts);
if (!dev)
return -1;
object_unref(OBJECT(dev));
return 0;
}
static int chardev_init_func(QemuOpts *opts, void *opaque)
{
Error *local_err = NULL;
qemu_chr_new_from_opts(opts, NULL, &local_err);
if (error_is_set(&local_err)) {
fprintf(stderr, "%s\n", error_get_pretty(local_err));
error_free(local_err);
return -1;
}
return 0;
}
#ifdef CONFIG_VIRTFS
static int fsdev_init_func(QemuOpts *opts, void *opaque)
{
int ret;
ret = qemu_fsdev_add(opts);
return ret;
}
#endif
static int mon_init_func(QemuOpts *opts, void *opaque)
{
CharDriverState *chr;
const char *chardev;
const char *mode;
int flags;
mode = qemu_opt_get(opts, "mode");
if (mode == NULL) {
mode = "readline";
}
if (strcmp(mode, "readline") == 0) {
flags = MONITOR_USE_READLINE;
} else if (strcmp(mode, "control") == 0) {
flags = MONITOR_USE_CONTROL;
} else {
fprintf(stderr, "unknown monitor mode \"%s\"\n", mode);
exit(1);
}
if (qemu_opt_get_bool(opts, "pretty", 0))
flags |= MONITOR_USE_PRETTY;
if (qemu_opt_get_bool(opts, "default", 0))
flags |= MONITOR_IS_DEFAULT;
chardev = qemu_opt_get(opts, "chardev");
chr = qemu_chr_find(chardev);
if (chr == NULL) {
fprintf(stderr, "chardev \"%s\" not found\n", chardev);
exit(1);
}
monitor_init(chr, flags);
return 0;
}
static void monitor_parse(const char *optarg, const char *mode)
{
static int monitor_device_index = 0;
QemuOpts *opts;
const char *p;
char label[32];
int def = 0;
if (strstart(optarg, "chardev:", &p)) {
snprintf(label, sizeof(label), "%s", p);
} else {
snprintf(label, sizeof(label), "compat_monitor%d",
monitor_device_index);
if (monitor_device_index == 0) {
def = 1;
}
opts = qemu_chr_parse_compat(label, optarg);
if (!opts) {
fprintf(stderr, "parse error: %s\n", optarg);
exit(1);
}
}
opts = qemu_opts_create(qemu_find_opts("mon"), label, 1, NULL);
if (!opts) {
fprintf(stderr, "duplicate chardev: %s\n", label);
exit(1);
}
qemu_opt_set(opts, "mode", mode);
qemu_opt_set(opts, "chardev", label);
if (def)
qemu_opt_set(opts, "default", "on");
monitor_device_index++;
}
struct device_config {
enum {
DEV_USB, /* -usbdevice */
DEV_BT, /* -bt */
DEV_SERIAL, /* -serial */
DEV_PARALLEL, /* -parallel */
DEV_VIRTCON, /* -virtioconsole */
DEV_DEBUGCON, /* -debugcon */
DEV_GDB, /* -gdb, -s */
DEV_SCLP, /* s390 sclp */
} type;
const char *cmdline;
Location loc;
QTAILQ_ENTRY(device_config) next;
};
static QTAILQ_HEAD(, device_config) device_configs =
QTAILQ_HEAD_INITIALIZER(device_configs);
static void add_device_config(int type, const char *cmdline)
{
struct device_config *conf;
conf = g_malloc0(sizeof(*conf));
conf->type = type;
conf->cmdline = cmdline;
loc_save(&conf->loc);
QTAILQ_INSERT_TAIL(&device_configs, conf, next);
}
static int foreach_device_config(int type, int (*func)(const char *cmdline))
{
struct device_config *conf;
int rc;
QTAILQ_FOREACH(conf, &device_configs, next) {
if (conf->type != type)
continue;
loc_push_restore(&conf->loc);
rc = func(conf->cmdline);
loc_pop(&conf->loc);
if (0 != rc)
return rc;
}
return 0;
}
static int serial_parse(const char *devname)
{
static int index = 0;
char label[32];
if (strcmp(devname, "none") == 0)
return 0;
if (index == MAX_SERIAL_PORTS) {
fprintf(stderr, "qemu: too many serial ports\n");
exit(1);
}
snprintf(label, sizeof(label), "serial%d", index);
serial_hds[index] = qemu_chr_new(label, devname, NULL);
if (!serial_hds[index]) {
fprintf(stderr, "qemu: could not connect serial device"
" to character backend '%s'\n", devname);
return -1;
}
index++;
return 0;
}
static int parallel_parse(const char *devname)
{
static int index = 0;
char label[32];
if (strcmp(devname, "none") == 0)
return 0;
if (index == MAX_PARALLEL_PORTS) {
fprintf(stderr, "qemu: too many parallel ports\n");
exit(1);
}
snprintf(label, sizeof(label), "parallel%d", index);
parallel_hds[index] = qemu_chr_new(label, devname, NULL);
if (!parallel_hds[index]) {
fprintf(stderr, "qemu: could not connect parallel device"
" to character backend '%s'\n", devname);
return -1;
}
index++;
return 0;
}
static int virtcon_parse(const char *devname)
{
QemuOptsList *device = qemu_find_opts("device");
static int index = 0;
char label[32];
QemuOpts *bus_opts, *dev_opts;
if (strcmp(devname, "none") == 0)
return 0;
if (index == MAX_VIRTIO_CONSOLES) {
fprintf(stderr, "qemu: too many virtio consoles\n");
exit(1);
}
bus_opts = qemu_opts_create_nofail(device);
if (arch_type == QEMU_ARCH_S390X) {
qemu_opt_set(bus_opts, "driver", "virtio-serial-s390");
} else {
qemu_opt_set(bus_opts, "driver", "virtio-serial-pci");
}
dev_opts = qemu_opts_create_nofail(device);
qemu_opt_set(dev_opts, "driver", "virtconsole");
snprintf(label, sizeof(label), "virtcon%d", index);
virtcon_hds[index] = qemu_chr_new(label, devname, NULL);
if (!virtcon_hds[index]) {
fprintf(stderr, "qemu: could not connect virtio console"
" to character backend '%s'\n", devname);
return -1;
}
qemu_opt_set(dev_opts, "chardev", label);
index++;
return 0;
}
static int sclp_parse(const char *devname)
{
QemuOptsList *device = qemu_find_opts("device");
static int index = 0;
char label[32];
QemuOpts *dev_opts;
if (strcmp(devname, "none") == 0) {
return 0;
}
if (index == MAX_SCLP_CONSOLES) {
fprintf(stderr, "qemu: too many sclp consoles\n");
exit(1);
}
assert(arch_type == QEMU_ARCH_S390X);
dev_opts = qemu_opts_create(device, NULL, 0, NULL);
qemu_opt_set(dev_opts, "driver", "sclpconsole");
snprintf(label, sizeof(label), "sclpcon%d", index);
sclp_hds[index] = qemu_chr_new(label, devname, NULL);
if (!sclp_hds[index]) {
fprintf(stderr, "qemu: could not connect sclp console"
" to character backend '%s'\n", devname);
return -1;
}
qemu_opt_set(dev_opts, "chardev", label);
index++;
return 0;
}
static int debugcon_parse(const char *devname)
{
QemuOpts *opts;
if (!qemu_chr_new("debugcon", devname, NULL)) {
exit(1);
}
opts = qemu_opts_create(qemu_find_opts("device"), "debugcon", 1, NULL);
if (!opts) {
fprintf(stderr, "qemu: already have a debugcon device\n");
exit(1);
}
qemu_opt_set(opts, "driver", "isa-debugcon");
qemu_opt_set(opts, "chardev", "debugcon");
return 0;
}
static QEMUMachine *machine_parse(const char *name)
{
QEMUMachine *m, *machine = NULL;
if (name) {
machine = find_machine(name);
}
if (machine) {
return machine;
}
printf("Supported machines are:\n");
for (m = first_machine; m != NULL; m = m->next) {
if (m->alias) {
printf("%-20s %s (alias of %s)\n", m->alias, m->desc, m->name);
}
printf("%-20s %s%s\n", m->name, m->desc,
m->is_default ? " (default)" : "");
}
exit(!name || !is_help_option(name));
}
static int tcg_init(void)
{
tcg_exec_init(tcg_tb_size * 1024 * 1024);
return 0;
}
static struct {
const char *opt_name;
const char *name;
int (*available)(void);
int (*init)(void);
bool *allowed;
} accel_list[] = {
{ "tcg", "tcg", tcg_available, tcg_init, &tcg_allowed },
{ "xen", "Xen", xen_available, xen_init, &xen_allowed },
{ "kvm", "KVM", kvm_available, kvm_init, &kvm_allowed },
{ "qtest", "QTest", qtest_available, qtest_init, &qtest_allowed },
};
static int configure_accelerator(void)
{
const char *p = NULL;
char buf[10];
int i, ret;
bool accel_initialised = false;
bool init_failed = false;
QemuOptsList *list = qemu_find_opts("machine");
if (!QTAILQ_EMPTY(&list->head)) {
p = qemu_opt_get(QTAILQ_FIRST(&list->head), "accel");
}
if (p == NULL) {
/* Use the default "accelerator", tcg */
p = "tcg";
}
while (!accel_initialised && *p != '\0') {
if (*p == ':') {
p++;
}
p = get_opt_name(buf, sizeof (buf), p, ':');
for (i = 0; i < ARRAY_SIZE(accel_list); i++) {
if (strcmp(accel_list[i].opt_name, buf) == 0) {
if (!accel_list[i].available()) {
printf("%s not supported for this target\n",
accel_list[i].name);
continue;
}
*(accel_list[i].allowed) = true;
ret = accel_list[i].init();
if (ret < 0) {
init_failed = true;
fprintf(stderr, "failed to initialize %s: %s\n",
accel_list[i].name,
strerror(-ret));
*(accel_list[i].allowed) = false;
} else {
accel_initialised = true;
}
break;
}
}
if (i == ARRAY_SIZE(accel_list)) {
fprintf(stderr, "\"%s\" accelerator does not exist.\n", buf);
}
}
if (!accel_initialised) {
if (!init_failed) {
fprintf(stderr, "No accelerator found!\n");
}
exit(1);
}
if (init_failed) {
fprintf(stderr, "Back to %s accelerator.\n", accel_list[i].name);
}
return !accel_initialised;
}
void qemu_add_exit_notifier(Notifier *notify)
{
notifier_list_add(&exit_notifiers, notify);
}
void qemu_remove_exit_notifier(Notifier *notify)
{
notifier_remove(notify);
}
static void qemu_run_exit_notifiers(void)
{
notifier_list_notify(&exit_notifiers, NULL);
}
void qemu_add_machine_init_done_notifier(Notifier *notify)
{
notifier_list_add(&machine_init_done_notifiers, notify);
}
static void qemu_run_machine_init_done_notifiers(void)
{
notifier_list_notify(&machine_init_done_notifiers, NULL);
}
static const QEMUOption *lookup_opt(int argc, char **argv,
const char **poptarg, int *poptind)
{
const QEMUOption *popt;
int optind = *poptind;
char *r = argv[optind];
const char *optarg;
loc_set_cmdline(argv, optind, 1);
optind++;
/* Treat --foo the same as -foo. */
if (r[1] == '-')
r++;
popt = qemu_options;
for(;;) {
if (!popt->name) {
error_report("invalid option");
exit(1);
}
if (!strcmp(popt->name, r + 1))
break;
popt++;
}
if (popt->flags & HAS_ARG) {
if (optind >= argc) {
error_report("requires an argument");
exit(1);
}
optarg = argv[optind++];
loc_set_cmdline(argv, optind - 2, 2);
} else {
optarg = NULL;
}
*poptarg = optarg;
*poptind = optind;
return popt;
}
static gpointer malloc_and_trace(gsize n_bytes)
{
void *ptr = malloc(n_bytes);
trace_g_malloc(n_bytes, ptr);
return ptr;
}
static gpointer realloc_and_trace(gpointer mem, gsize n_bytes)
{
void *ptr = realloc(mem, n_bytes);
trace_g_realloc(mem, n_bytes, ptr);
return ptr;
}
static void free_and_trace(gpointer mem)
{
trace_g_free(mem);
free(mem);
}
static int object_set_property(const char *name, const char *value, void *opaque)
{
Object *obj = OBJECT(opaque);
StringInputVisitor *siv;
Error *local_err = NULL;
if (strcmp(name, "qom-type") == 0 || strcmp(name, "id") == 0) {
return 0;
}
siv = string_input_visitor_new(value);
object_property_set(obj, string_input_get_visitor(siv), name, &local_err);
string_input_visitor_cleanup(siv);
if (local_err) {
qerror_report_err(local_err);
error_free(local_err);
return -1;
}
return 0;
}
static int object_create(QemuOpts *opts, void *opaque)
{
const char *type = qemu_opt_get(opts, "qom-type");
const char *id = qemu_opts_id(opts);
Object *obj;
g_assert(type != NULL);
if (id == NULL) {
qerror_report(QERR_MISSING_PARAMETER, "id");
return -1;
}
obj = object_new(type);
if (qemu_opt_foreach(opts, object_set_property, obj, 1) < 0) {
return -1;
}
object_property_add_child(container_get(object_get_root(), "/objects"),
id, obj, NULL);
return 0;
}
int main(int argc, char **argv, char **envp)
{
int i;
int snapshot, linux_boot;
const char *icount_option = NULL;
const char *initrd_filename;
const char *kernel_filename, *kernel_cmdline;
char boot_devices[33] = "";
DisplayState *ds;
int cyls, heads, secs, translation;
QemuOpts *hda_opts = NULL, *opts, *machine_opts;
QemuOptsList *olist;
int optind;
const char *optarg;
const char *loadvm = NULL;
QEMUMachine *machine;
const char *cpu_model;
const char *vga_model = "none";
const char *pid_file = NULL;
const char *incoming = NULL;
#ifdef CONFIG_VNC
int show_vnc_port = 0;
#endif
bool defconfig = true;
bool userconfig = true;
const char *log_mask = NULL;
const char *log_file = NULL;
GMemVTable mem_trace = {
.malloc = malloc_and_trace,
.realloc = realloc_and_trace,
.free = free_and_trace,
};
const char *trace_events = NULL;
const char *trace_file = NULL;
atexit(qemu_run_exit_notifiers);
error_set_progname(argv[0]);
g_mem_set_vtable(&mem_trace);
if (!g_thread_supported()) {
#if !GLIB_CHECK_VERSION(2, 31, 0)
g_thread_init(NULL);
#else
fprintf(stderr, "glib threading failed to initialize.\n");
exit(1);
#endif
}
module_call_init(MODULE_INIT_QOM);
qemu_add_opts(&qemu_drive_opts);
qemu_add_opts(&qemu_chardev_opts);
qemu_add_opts(&qemu_device_opts);
qemu_add_opts(&qemu_netdev_opts);
qemu_add_opts(&qemu_net_opts);
qemu_add_opts(&qemu_rtc_opts);
qemu_add_opts(&qemu_global_opts);
qemu_add_opts(&qemu_mon_opts);
qemu_add_opts(&qemu_trace_opts);
qemu_add_opts(&qemu_option_rom_opts);
qemu_add_opts(&qemu_machine_opts);
qemu_add_opts(&qemu_boot_opts);
qemu_add_opts(&qemu_sandbox_opts);
qemu_add_opts(&qemu_add_fd_opts);
qemu_add_opts(&qemu_object_opts);
qemu_add_opts(&qemu_tpmdev_opts);
runstate_init();
init_clocks();
rtc_clock = host_clock;
qemu_cache_utils_init(envp);
QLIST_INIT (&vm_change_state_head);
os_setup_early_signal_handling();
module_call_init(MODULE_INIT_MACHINE);
machine = find_default_machine();
cpu_model = NULL;
ram_size = 0;
snapshot = 0;
cyls = heads = secs = 0;
translation = BIOS_ATA_TRANSLATION_AUTO;
for (i = 0; i < MAX_NODES; i++) {
node_mem[i] = 0;
node_cpumask[i] = bitmap_new(MAX_CPUMASK_BITS);
}
nb_numa_nodes = 0;
nb_nics = 0;
autostart= 1;
/* first pass of option parsing */
optind = 1;
while (optind < argc) {
if (argv[optind][0] != '-') {
/* disk image */
optind++;
continue;
} else {
const QEMUOption *popt;
popt = lookup_opt(argc, argv, &optarg, &optind);
switch (popt->index) {
case QEMU_OPTION_nodefconfig:
defconfig = false;
break;
case QEMU_OPTION_nouserconfig:
userconfig = false;
break;
}
}
}
if (defconfig) {
int ret;
ret = qemu_read_default_config_files(userconfig);
if (ret < 0) {
exit(1);
}
}
/* second pass of option parsing */
optind = 1;
for(;;) {
if (optind >= argc)
break;
if (argv[optind][0] != '-') {
hda_opts = drive_add(IF_DEFAULT, 0, argv[optind++], HD_OPTS);
} else {
const QEMUOption *popt;
popt = lookup_opt(argc, argv, &optarg, &optind);
if (!(popt->arch_mask & arch_type)) {
printf("Option %s not supported for this target\n", popt->name);
exit(1);
}
switch(popt->index) {
case QEMU_OPTION_M:
machine = machine_parse(optarg);
break;
case QEMU_OPTION_no_kvm_irqchip: {
olist = qemu_find_opts("machine");
qemu_opts_parse(olist, "kernel_irqchip=off", 0);
break;
}
case QEMU_OPTION_cpu:
/* hw initialization will check this */
cpu_model = optarg;
break;
case QEMU_OPTION_hda:
{
char buf[256];
if (cyls == 0)
snprintf(buf, sizeof(buf), "%s", HD_OPTS);
else
snprintf(buf, sizeof(buf),
"%s,cyls=%d,heads=%d,secs=%d%s",
HD_OPTS , cyls, heads, secs,
translation == BIOS_ATA_TRANSLATION_LBA ?
",trans=lba" :
translation == BIOS_ATA_TRANSLATION_NONE ?
",trans=none" : "");
drive_add(IF_DEFAULT, 0, optarg, buf);
break;
}
case QEMU_OPTION_hdb:
case QEMU_OPTION_hdc:
case QEMU_OPTION_hdd:
drive_add(IF_DEFAULT, popt->index - QEMU_OPTION_hda, optarg,
HD_OPTS);
break;
case QEMU_OPTION_drive:
if (drive_def(optarg) == NULL) {
exit(1);
}
break;
case QEMU_OPTION_set:
if (qemu_set_option(optarg) != 0)
exit(1);
break;
case QEMU_OPTION_global:
if (qemu_global_option(optarg) != 0)
exit(1);
break;
case QEMU_OPTION_mtdblock:
drive_add(IF_MTD, -1, optarg, MTD_OPTS);
break;
case QEMU_OPTION_sd:
drive_add(IF_SD, -1, optarg, SD_OPTS);
break;
case QEMU_OPTION_pflash:
drive_add(IF_PFLASH, -1, optarg, PFLASH_OPTS);
break;
case QEMU_OPTION_snapshot:
snapshot = 1;
break;
case QEMU_OPTION_hdachs:
{
const char *p;
p = optarg;
cyls = strtol(p, (char **)&p, 0);
if (cyls < 1 || cyls > 16383)
goto chs_fail;
if (*p != ',')
goto chs_fail;
p++;
heads = strtol(p, (char **)&p, 0);
if (heads < 1 || heads > 16)
goto chs_fail;
if (*p != ',')
goto chs_fail;
p++;
secs = strtol(p, (char **)&p, 0);
if (secs < 1 || secs > 63)
goto chs_fail;
if (*p == ',') {
p++;
if (!strcmp(p, "none"))
translation = BIOS_ATA_TRANSLATION_NONE;
else if (!strcmp(p, "lba"))
translation = BIOS_ATA_TRANSLATION_LBA;
else if (!strcmp(p, "auto"))
translation = BIOS_ATA_TRANSLATION_AUTO;
else
goto chs_fail;
} else if (*p != '\0') {
chs_fail:
fprintf(stderr, "qemu: invalid physical CHS format\n");
exit(1);
}
if (hda_opts != NULL) {
char num[16];
snprintf(num, sizeof(num), "%d", cyls);
qemu_opt_set(hda_opts, "cyls", num);
snprintf(num, sizeof(num), "%d", heads);
qemu_opt_set(hda_opts, "heads", num);
snprintf(num, sizeof(num), "%d", secs);
qemu_opt_set(hda_opts, "secs", num);
if (translation == BIOS_ATA_TRANSLATION_LBA)
qemu_opt_set(hda_opts, "trans", "lba");
if (translation == BIOS_ATA_TRANSLATION_NONE)
qemu_opt_set(hda_opts, "trans", "none");
}
}
break;
case QEMU_OPTION_numa:
numa_add(optarg);
break;
case QEMU_OPTION_display:
display_type = select_display(optarg);
break;
case QEMU_OPTION_nographic:
display_type = DT_NOGRAPHIC;
break;
case QEMU_OPTION_curses:
#ifdef CONFIG_CURSES
display_type = DT_CURSES;
#else
fprintf(stderr, "Curses support is disabled\n");
exit(1);
#endif
break;
case QEMU_OPTION_portrait:
graphic_rotate = 90;
break;
case QEMU_OPTION_rotate:
graphic_rotate = strtol(optarg, (char **) &optarg, 10);
if (graphic_rotate != 0 && graphic_rotate != 90 &&
graphic_rotate != 180 && graphic_rotate != 270) {
fprintf(stderr,
"qemu: only 90, 180, 270 deg rotation is available\n");
exit(1);
}
break;
case QEMU_OPTION_kernel:
qemu_opts_set(qemu_find_opts("machine"), 0, "kernel", optarg);
break;
case QEMU_OPTION_initrd:
qemu_opts_set(qemu_find_opts("machine"), 0, "initrd", optarg);
break;
case QEMU_OPTION_append:
qemu_opts_set(qemu_find_opts("machine"), 0, "append", optarg);
break;
case QEMU_OPTION_dtb:
qemu_opts_set(qemu_find_opts("machine"), 0, "dtb", optarg);
break;
case QEMU_OPTION_cdrom:
drive_add(IF_DEFAULT, 2, optarg, CDROM_OPTS);
break;
case QEMU_OPTION_boot:
{
static const char * const params[] = {
"order", "once", "menu",
"splash", "splash-time",
"reboot-timeout", NULL
};
char buf[sizeof(boot_devices)];
char *standard_boot_devices;
int legacy = 0;
if (!strchr(optarg, '=')) {
legacy = 1;
pstrcpy(buf, sizeof(buf), optarg);
} else if (check_params(buf, sizeof(buf), params, optarg) < 0) {
fprintf(stderr,
"qemu: unknown boot parameter '%s' in '%s'\n",
buf, optarg);
exit(1);
}
if (legacy ||
get_param_value(buf, sizeof(buf), "order", optarg)) {
validate_bootdevices(buf);
pstrcpy(boot_devices, sizeof(boot_devices), buf);
}
if (!legacy) {
if (get_param_value(buf, sizeof(buf),
"once", optarg)) {
validate_bootdevices(buf);
standard_boot_devices = g_strdup(boot_devices);
pstrcpy(boot_devices, sizeof(boot_devices), buf);
qemu_register_reset(restore_boot_devices,
standard_boot_devices);
}
if (get_param_value(buf, sizeof(buf),
"menu", optarg)) {
if (!strcmp(buf, "on")) {
boot_menu = 1;
} else if (!strcmp(buf, "off")) {
boot_menu = 0;
} else {
fprintf(stderr,
"qemu: invalid option value '%s'\n",
buf);
exit(1);
}
}
if (!qemu_opts_parse(qemu_find_opts("boot-opts"),
optarg, 0)) {
exit(1);
}
}
}
break;
case QEMU_OPTION_fda:
case QEMU_OPTION_fdb:
drive_add(IF_FLOPPY, popt->index - QEMU_OPTION_fda,
optarg, FD_OPTS);
break;
case QEMU_OPTION_no_fd_bootchk:
fd_bootchk = 0;
break;
case QEMU_OPTION_netdev:
if (net_client_parse(qemu_find_opts("netdev"), optarg) == -1) {
exit(1);
}
break;
case QEMU_OPTION_net:
if (net_client_parse(qemu_find_opts("net"), optarg) == -1) {
exit(1);
}
break;
#ifdef CONFIG_LIBISCSI
case QEMU_OPTION_iscsi:
opts = qemu_opts_parse(qemu_find_opts("iscsi"), optarg, 0);
if (!opts) {
exit(1);
}
break;
#endif
#ifdef CONFIG_SLIRP
case QEMU_OPTION_tftp:
legacy_tftp_prefix = optarg;
break;
case QEMU_OPTION_bootp:
legacy_bootp_filename = optarg;
break;
case QEMU_OPTION_redir:
if (net_slirp_redir(optarg) < 0)
exit(1);
break;
#endif
case QEMU_OPTION_bt:
add_device_config(DEV_BT, optarg);
break;
case QEMU_OPTION_audio_help:
if (!(audio_available())) {
printf("Option %s not supported for this target\n", popt->name);
exit(1);
}
AUD_help ();
exit (0);
break;
case QEMU_OPTION_soundhw:
if (!(audio_available())) {
printf("Option %s not supported for this target\n", popt->name);
exit(1);
}
select_soundhw (optarg);
break;
case QEMU_OPTION_h:
help(0);
break;
case QEMU_OPTION_version:
version();
exit(0);
break;
case QEMU_OPTION_m: {
int64_t value;
uint64_t sz;
char *end;
value = strtosz(optarg, &end);
if (value < 0 || *end) {
fprintf(stderr, "qemu: invalid ram size: %s\n", optarg);
exit(1);
}
sz = QEMU_ALIGN_UP((uint64_t)value, 8192);
ram_size = sz;
if (ram_size != sz) {
fprintf(stderr, "qemu: ram size too large\n");
exit(1);
}
break;
}
#ifdef CONFIG_TPM
case QEMU_OPTION_tpmdev:
if (tpm_config_parse(qemu_find_opts("tpmdev"), optarg) < 0) {
exit(1);
}
break;
#endif
case QEMU_OPTION_mempath:
mem_path = optarg;
break;
#ifdef MAP_POPULATE
case QEMU_OPTION_mem_prealloc:
mem_prealloc = 1;
break;
#endif
case QEMU_OPTION_d:
log_mask = optarg;
break;
case QEMU_OPTION_D:
log_file = optarg;
break;
case QEMU_OPTION_s:
add_device_config(DEV_GDB, "tcp::" DEFAULT_GDBSTUB_PORT);
break;
case QEMU_OPTION_gdb:
add_device_config(DEV_GDB, optarg);
break;
case QEMU_OPTION_L:
if (data_dir_idx < ARRAY_SIZE(data_dir)) {
data_dir[data_dir_idx++] = optarg;
}
break;
case QEMU_OPTION_bios:
bios_name = optarg;
break;
case QEMU_OPTION_singlestep:
singlestep = 1;
break;
case QEMU_OPTION_S:
autostart = 0;
break;
case QEMU_OPTION_k:
keyboard_layout = optarg;
break;
case QEMU_OPTION_localtime:
rtc_utc = 0;
break;
case QEMU_OPTION_vga:
vga_model = optarg;
default_vga = 0;
break;
case QEMU_OPTION_g:
{
const char *p;
int w, h, depth;
p = optarg;
w = strtol(p, (char **)&p, 10);
if (w <= 0) {
graphic_error:
fprintf(stderr, "qemu: invalid resolution or depth\n");
exit(1);
}
if (*p != 'x')
goto graphic_error;
p++;
h = strtol(p, (char **)&p, 10);
if (h <= 0)
goto graphic_error;
if (*p == 'x') {
p++;
depth = strtol(p, (char **)&p, 10);
if (depth != 8 && depth != 15 && depth != 16 &&
depth != 24 && depth != 32)
goto graphic_error;
} else if (*p == '\0') {
depth = graphic_depth;
} else {
goto graphic_error;
}
graphic_width = w;
graphic_height = h;
graphic_depth = depth;
}
break;
case QEMU_OPTION_echr:
{
char *r;
term_escape_char = strtol(optarg, &r, 0);
if (r == optarg)
printf("Bad argument to echr\n");
break;
}
case QEMU_OPTION_monitor:
monitor_parse(optarg, "readline");
default_monitor = 0;
break;
case QEMU_OPTION_qmp:
monitor_parse(optarg, "control");
default_monitor = 0;
break;
case QEMU_OPTION_mon:
opts = qemu_opts_parse(qemu_find_opts("mon"), optarg, 1);
if (!opts) {
exit(1);
}
default_monitor = 0;
break;
case QEMU_OPTION_chardev:
opts = qemu_opts_parse(qemu_find_opts("chardev"), optarg, 1);
if (!opts) {
exit(1);
}
break;
case QEMU_OPTION_fsdev:
olist = qemu_find_opts("fsdev");
if (!olist) {
fprintf(stderr, "fsdev is not supported by this qemu build.\n");
exit(1);
}
opts = qemu_opts_parse(olist, optarg, 1);
if (!opts) {
exit(1);
}
break;
case QEMU_OPTION_virtfs: {
QemuOpts *fsdev;
QemuOpts *device;
const char *writeout, *sock_fd, *socket;
olist = qemu_find_opts("virtfs");
if (!olist) {
fprintf(stderr, "virtfs is not supported by this qemu build.\n");
exit(1);
}
opts = qemu_opts_parse(olist, optarg, 1);
if (!opts) {
exit(1);
}
if (qemu_opt_get(opts, "fsdriver") == NULL ||
qemu_opt_get(opts, "mount_tag") == NULL) {
fprintf(stderr, "Usage: -virtfs fsdriver,mount_tag=tag.\n");
exit(1);
}
fsdev = qemu_opts_create(qemu_find_opts("fsdev"),
qemu_opt_get(opts, "mount_tag"),
1, NULL);
if (!fsdev) {
fprintf(stderr, "duplicate fsdev id: %s\n",
qemu_opt_get(opts, "mount_tag"));
exit(1);
}
writeout = qemu_opt_get(opts, "writeout");
if (writeout) {
#ifdef CONFIG_SYNC_FILE_RANGE
qemu_opt_set(fsdev, "writeout", writeout);
#else
fprintf(stderr, "writeout=immediate not supported on "
"this platform\n");
exit(1);
#endif
}
qemu_opt_set(fsdev, "fsdriver", qemu_opt_get(opts, "fsdriver"));
qemu_opt_set(fsdev, "path", qemu_opt_get(opts, "path"));
qemu_opt_set(fsdev, "security_model",
qemu_opt_get(opts, "security_model"));
socket = qemu_opt_get(opts, "socket");
if (socket) {
qemu_opt_set(fsdev, "socket", socket);
}
sock_fd = qemu_opt_get(opts, "sock_fd");
if (sock_fd) {
qemu_opt_set(fsdev, "sock_fd", sock_fd);
}
qemu_opt_set_bool(fsdev, "readonly",
qemu_opt_get_bool(opts, "readonly", 0));
device = qemu_opts_create_nofail(qemu_find_opts("device"));
qemu_opt_set(device, "driver", "virtio-9p-pci");
qemu_opt_set(device, "fsdev",
qemu_opt_get(opts, "mount_tag"));
qemu_opt_set(device, "mount_tag",
qemu_opt_get(opts, "mount_tag"));
break;
}
case QEMU_OPTION_virtfs_synth: {
QemuOpts *fsdev;
QemuOpts *device;
fsdev = qemu_opts_create(qemu_find_opts("fsdev"), "v_synth",
1, NULL);
if (!fsdev) {
fprintf(stderr, "duplicate option: %s\n", "virtfs_synth");
exit(1);
}
qemu_opt_set(fsdev, "fsdriver", "synth");
device = qemu_opts_create_nofail(qemu_find_opts("device"));
qemu_opt_set(device, "driver", "virtio-9p-pci");
qemu_opt_set(device, "fsdev", "v_synth");
qemu_opt_set(device, "mount_tag", "v_synth");
break;
}
case QEMU_OPTION_serial:
add_device_config(DEV_SERIAL, optarg);
default_serial = 0;
if (strncmp(optarg, "mon:", 4) == 0) {
default_monitor = 0;
}
break;
case QEMU_OPTION_watchdog:
if (watchdog) {
fprintf(stderr,
"qemu: only one watchdog option may be given\n");
return 1;
}
watchdog = optarg;
break;
case QEMU_OPTION_watchdog_action:
if (select_watchdog_action(optarg) == -1) {
fprintf(stderr, "Unknown -watchdog-action parameter\n");
exit(1);
}
break;
case QEMU_OPTION_virtiocon:
add_device_config(DEV_VIRTCON, optarg);
default_virtcon = 0;
if (strncmp(optarg, "mon:", 4) == 0) {
default_monitor = 0;
}
break;
case QEMU_OPTION_parallel:
add_device_config(DEV_PARALLEL, optarg);
default_parallel = 0;
if (strncmp(optarg, "mon:", 4) == 0) {
default_monitor = 0;
}
break;
case QEMU_OPTION_debugcon:
add_device_config(DEV_DEBUGCON, optarg);
break;
case QEMU_OPTION_loadvm:
loadvm = optarg;
break;
case QEMU_OPTION_full_screen:
full_screen = 1;
break;
#ifdef CONFIG_SDL
case QEMU_OPTION_no_frame:
no_frame = 1;
break;
case QEMU_OPTION_alt_grab:
alt_grab = 1;
break;
case QEMU_OPTION_ctrl_grab:
ctrl_grab = 1;
break;
case QEMU_OPTION_no_quit:
no_quit = 1;
break;
case QEMU_OPTION_sdl:
display_type = DT_SDL;
break;
#else
case QEMU_OPTION_no_frame:
case QEMU_OPTION_alt_grab:
case QEMU_OPTION_ctrl_grab:
case QEMU_OPTION_no_quit:
case QEMU_OPTION_sdl:
fprintf(stderr, "SDL support is disabled\n");
exit(1);
#endif
case QEMU_OPTION_pidfile:
pid_file = optarg;
break;
case QEMU_OPTION_win2k_hack:
win2k_install_hack = 1;
break;
case QEMU_OPTION_rtc_td_hack: {
static GlobalProperty slew_lost_ticks[] = {
{
.driver = "mc146818rtc",
.property = "lost_tick_policy",
.value = "slew",
},
{ /* end of list */ }
};
qdev_prop_register_global_list(slew_lost_ticks);
break;
}
case QEMU_OPTION_acpitable:
do_acpitable_option(optarg);
break;
case QEMU_OPTION_smbios:
do_smbios_option(optarg);
break;
case QEMU_OPTION_enable_kvm:
olist = qemu_find_opts("machine");
qemu_opts_parse(olist, "accel=kvm", 0);
break;
case QEMU_OPTION_machine:
olist = qemu_find_opts("machine");
opts = qemu_opts_parse(olist, optarg, 1);
if (!opts) {
exit(1);
}
optarg = qemu_opt_get(opts, "type");
if (optarg) {
machine = machine_parse(optarg);
}
break;
case QEMU_OPTION_no_kvm:
olist = qemu_find_opts("machine");
qemu_opts_parse(olist, "accel=tcg", 0);
break;
case QEMU_OPTION_no_kvm_pit: {
fprintf(stderr, "Warning: KVM PIT can no longer be disabled "
"separately.\n");
break;
}
case QEMU_OPTION_no_kvm_pit_reinjection: {
static GlobalProperty kvm_pit_lost_tick_policy[] = {
{
.driver = "kvm-pit",
.property = "lost_tick_policy",
.value = "discard",
},
{ /* end of list */ }
};
fprintf(stderr, "Warning: option deprecated, use "
"lost_tick_policy property of kvm-pit instead.\n");
qdev_prop_register_global_list(kvm_pit_lost_tick_policy);
break;
}
case QEMU_OPTION_usb:
olist = qemu_find_opts("machine");
qemu_opts_parse(olist, "usb=on", 0);
break;
case QEMU_OPTION_usbdevice:
olist = qemu_find_opts("machine");
qemu_opts_parse(olist, "usb=on", 0);
add_device_config(DEV_USB, optarg);
break;
case QEMU_OPTION_device:
if (!qemu_opts_parse(qemu_find_opts("device"), optarg, 1)) {
exit(1);
}
break;
case QEMU_OPTION_smp:
smp_parse(optarg);
if (smp_cpus < 1) {
fprintf(stderr, "Invalid number of CPUs\n");
exit(1);
}
if (max_cpus < smp_cpus) {
fprintf(stderr, "maxcpus must be equal to or greater than "
"smp\n");
exit(1);
}
if (max_cpus > 255) {
fprintf(stderr, "Unsupported number of maxcpus\n");
exit(1);
}
break;
case QEMU_OPTION_vnc:
#ifdef CONFIG_VNC
display_remote++;
vnc_display = optarg;
#else
fprintf(stderr, "VNC support is disabled\n");
exit(1);
#endif
break;
case QEMU_OPTION_no_acpi:
acpi_enabled = 0;
break;
case QEMU_OPTION_no_hpet:
no_hpet = 1;
break;
case QEMU_OPTION_balloon:
if (balloon_parse(optarg) < 0) {
fprintf(stderr, "Unknown -balloon argument %s\n", optarg);
exit(1);
}
break;
case QEMU_OPTION_no_reboot:
no_reboot = 1;
break;
case QEMU_OPTION_no_shutdown:
no_shutdown = 1;
break;
case QEMU_OPTION_show_cursor:
cursor_hide = 0;
break;
case QEMU_OPTION_uuid:
if(qemu_uuid_parse(optarg, qemu_uuid) < 0) {
fprintf(stderr, "Fail to parse UUID string."
" Wrong format.\n");
exit(1);
}
break;
case QEMU_OPTION_option_rom:
if (nb_option_roms >= MAX_OPTION_ROMS) {
fprintf(stderr, "Too many option ROMs\n");
exit(1);
}
opts = qemu_opts_parse(qemu_find_opts("option-rom"), optarg, 1);
if (!opts) {
exit(1);
}
option_rom[nb_option_roms].name = qemu_opt_get(opts, "romfile");
option_rom[nb_option_roms].bootindex =
qemu_opt_get_number(opts, "bootindex", -1);
if (!option_rom[nb_option_roms].name) {
fprintf(stderr, "Option ROM file is not specified\n");
exit(1);
}
nb_option_roms++;
break;
case QEMU_OPTION_semihosting:
semihosting_enabled = 1;
break;
case QEMU_OPTION_tdf:
fprintf(stderr, "Warning: user space PIT time drift fix "
"is no longer supported.\n");
break;
case QEMU_OPTION_name:
qemu_name = g_strdup(optarg);
{
char *p = strchr(qemu_name, ',');
if (p != NULL) {
*p++ = 0;
if (strncmp(p, "process=", 8)) {
fprintf(stderr, "Unknown subargument %s to -name\n", p);
exit(1);
}
p += 8;
os_set_proc_name(p);
}
}
break;
case QEMU_OPTION_prom_env:
if (nb_prom_envs >= MAX_PROM_ENVS) {
fprintf(stderr, "Too many prom variables\n");
exit(1);
}
prom_envs[nb_prom_envs] = optarg;
nb_prom_envs++;
break;
case QEMU_OPTION_old_param:
old_param = 1;
break;
case QEMU_OPTION_clock:
configure_alarms(optarg);
break;
case QEMU_OPTION_startdate:
configure_rtc_date_offset(optarg, 1);
break;
case QEMU_OPTION_rtc:
opts = qemu_opts_parse(qemu_find_opts("rtc"), optarg, 0);
if (!opts) {
exit(1);
}
configure_rtc(opts);
break;
case QEMU_OPTION_tb_size:
tcg_tb_size = strtol(optarg, NULL, 0);
if (tcg_tb_size < 0) {
tcg_tb_size = 0;
}
break;
case QEMU_OPTION_icount:
icount_option = optarg;
break;
case QEMU_OPTION_incoming:
incoming = optarg;
runstate_set(RUN_STATE_INMIGRATE);
break;
case QEMU_OPTION_nodefaults:
default_serial = 0;
default_parallel = 0;
default_virtcon = 0;
default_sclp = 0;
default_monitor = 0;
default_net = 0;
default_floppy = 0;
default_cdrom = 0;
default_sdcard = 0;
default_vga = 0;
break;
case QEMU_OPTION_xen_domid:
if (!(xen_available())) {
printf("Option %s not supported for this target\n", popt->name);
exit(1);
}
xen_domid = atoi(optarg);
break;
case QEMU_OPTION_xen_create:
if (!(xen_available())) {
printf("Option %s not supported for this target\n", popt->name);
exit(1);
}
xen_mode = XEN_CREATE;
break;
case QEMU_OPTION_xen_attach:
if (!(xen_available())) {
printf("Option %s not supported for this target\n", popt->name);
exit(1);
}
xen_mode = XEN_ATTACH;
break;
case QEMU_OPTION_trace:
{
opts = qemu_opts_parse(qemu_find_opts("trace"), optarg, 0);
if (!opts) {
exit(1);
}
trace_events = qemu_opt_get(opts, "events");
trace_file = qemu_opt_get(opts, "file");
break;
}
case QEMU_OPTION_readconfig:
{
int ret = qemu_read_config_file(optarg);
if (ret < 0) {
fprintf(stderr, "read config %s: %s\n", optarg,
strerror(-ret));
exit(1);
}
break;
}
case QEMU_OPTION_spice:
olist = qemu_find_opts("spice");
if (!olist) {
fprintf(stderr, "spice is not supported by this qemu build.\n");
exit(1);
}
opts = qemu_opts_parse(olist, optarg, 0);
if (!opts) {
exit(1);
}
display_remote++;
break;
case QEMU_OPTION_writeconfig:
{
FILE *fp;
if (strcmp(optarg, "-") == 0) {
fp = stdout;
} else {
fp = fopen(optarg, "w");
if (fp == NULL) {
fprintf(stderr, "open %s: %s\n", optarg, strerror(errno));
exit(1);
}
}
qemu_config_write(fp);
fclose(fp);
break;
}
case QEMU_OPTION_qtest:
qtest_chrdev = optarg;
break;
case QEMU_OPTION_qtest_log:
qtest_log = optarg;
break;
case QEMU_OPTION_sandbox:
opts = qemu_opts_parse(qemu_find_opts("sandbox"), optarg, 1);
if (!opts) {
exit(1);
}
break;
case QEMU_OPTION_add_fd:
#ifndef _WIN32
opts = qemu_opts_parse(qemu_find_opts("add-fd"), optarg, 0);
if (!opts) {
exit(1);
}
#else
error_report("File descriptor passing is disabled on this "
"platform");
exit(1);
#endif
break;
case QEMU_OPTION_object:
opts = qemu_opts_parse(qemu_find_opts("object"), optarg, 1);
if (!opts) {
exit(1);
}
break;
default:
os_parse_cmd_args(popt->index, optarg);
}
}
}
loc_set_none();
if (qemu_init_main_loop()) {
fprintf(stderr, "qemu_init_main_loop failed\n");
exit(1);
}
if (qemu_opts_foreach(qemu_find_opts("sandbox"), parse_sandbox, NULL, 0)) {
exit(1);
}
#ifndef _WIN32
if (qemu_opts_foreach(qemu_find_opts("add-fd"), parse_add_fd, NULL, 1)) {
exit(1);
}
if (qemu_opts_foreach(qemu_find_opts("add-fd"), cleanup_add_fd, NULL, 1)) {
exit(1);
}
#endif
if (machine == NULL) {
fprintf(stderr, "No machine found.\n");
exit(1);
}
if (machine->hw_version) {
qemu_set_version(machine->hw_version);
}
if (qemu_opts_foreach(qemu_find_opts("object"),
object_create, NULL, 0) != 0) {
exit(1);
}
/* Init CPU def lists, based on config
* - Must be called after all the qemu_read_config_file() calls
* - Must be called before list_cpus()
* - Must be called before machine->init()
*/
cpudef_init();
if (cpu_model && is_help_option(cpu_model)) {
list_cpus(stdout, &fprintf, cpu_model);
exit(0);
}
/* Open the logfile at this point, if necessary. We can't open the logfile
* when encountering either of the logging options (-d or -D) because the
* other one may be encountered later on the command line, changing the
* location or level of logging.
*/
if (log_mask) {
int mask;
if (log_file) {
qemu_set_log_filename(log_file);
}
mask = qemu_str_to_log_mask(log_mask);
if (!mask) {
qemu_print_log_usage(stdout);
exit(1);
}
qemu_set_log(mask);
}
if (!trace_backend_init(trace_events, trace_file)) {
exit(1);
}
/* If no data_dir is specified then try to find it relative to the
executable path. */
if (data_dir_idx < ARRAY_SIZE(data_dir)) {
data_dir[data_dir_idx] = os_find_datadir(argv[0]);
if (data_dir[data_dir_idx] != NULL) {
data_dir_idx++;
}
}
/* If all else fails use the install path specified when building. */
if (data_dir_idx < ARRAY_SIZE(data_dir)) {
data_dir[data_dir_idx++] = CONFIG_QEMU_DATADIR;
}
/*
* Default to max_cpus = smp_cpus, in case the user doesn't
* specify a max_cpus value.
*/
if (!max_cpus)
max_cpus = smp_cpus;
machine->max_cpus = machine->max_cpus ?: 1; /* Default to UP */
if (smp_cpus > machine->max_cpus) {
fprintf(stderr, "Number of SMP cpus requested (%d), exceeds max cpus "
"supported by machine `%s' (%d)\n", smp_cpus, machine->name,
machine->max_cpus);
exit(1);
}
/*
* Get the default machine options from the machine if it is not already
* specified either by the configuration file or by the command line.
*/
if (machine->default_machine_opts) {
qemu_opts_set_defaults(qemu_find_opts("machine"),
machine->default_machine_opts, 0);
}
qemu_opts_foreach(qemu_find_opts("device"), default_driver_check, NULL, 0);
qemu_opts_foreach(qemu_find_opts("global"), default_driver_check, NULL, 0);
if (machine->no_serial) {
default_serial = 0;
}
if (machine->no_parallel) {
default_parallel = 0;
}
if (!machine->use_virtcon) {
default_virtcon = 0;
}
if (!machine->use_sclp) {
default_sclp = 0;
}
if (machine->no_floppy) {
default_floppy = 0;
}
if (machine->no_cdrom) {
default_cdrom = 0;
}
if (machine->no_sdcard) {
default_sdcard = 0;
}
if (is_daemonized()) {
/* According to documentation and historically, -nographic redirects
* serial port, parallel port and monitor to stdio, which does not work
* with -daemonize. We can redirect these to null instead, but since
* -nographic is legacy, let's just error out.
* We disallow -nographic only if all other ports are not redirected
* explicitly, to not break existing legacy setups which uses
* -nographic _and_ redirects all ports explicitly - this is valid
* usage, -nographic is just a no-op in this case.
*/
if (display_type == DT_NOGRAPHIC
&& (default_parallel || default_serial
|| default_monitor || default_virtcon)) {
fprintf(stderr, "-nographic can not be used with -daemonize\n");
exit(1);
}
#ifdef CONFIG_CURSES
if (display_type == DT_CURSES) {
fprintf(stderr, "curses display can not be used with -daemonize\n");
exit(1);
}
#endif
}
if (display_type == DT_NOGRAPHIC) {
if (default_parallel)
add_device_config(DEV_PARALLEL, "null");
if (default_serial && default_monitor) {
add_device_config(DEV_SERIAL, "mon:stdio");
} else if (default_virtcon && default_monitor) {
add_device_config(DEV_VIRTCON, "mon:stdio");
} else if (default_sclp && default_monitor) {
add_device_config(DEV_SCLP, "mon:stdio");
} else {
if (default_serial)
add_device_config(DEV_SERIAL, "stdio");
if (default_virtcon)
add_device_config(DEV_VIRTCON, "stdio");
if (default_sclp) {
add_device_config(DEV_SCLP, "stdio");
}
if (default_monitor)
monitor_parse("stdio", "readline");
}
} else {
if (default_serial)
add_device_config(DEV_SERIAL, "vc:80Cx24C");
if (default_parallel)
add_device_config(DEV_PARALLEL, "vc:80Cx24C");
if (default_monitor)
monitor_parse("vc:80Cx24C", "readline");
if (default_virtcon)
add_device_config(DEV_VIRTCON, "vc:80Cx24C");
if (default_sclp) {
add_device_config(DEV_SCLP, "vc:80Cx24C");
}
}
if (display_type == DT_DEFAULT && !display_remote) {
#if defined(CONFIG_GTK)
display_type = DT_GTK;
#elif defined(CONFIG_SDL) || defined(CONFIG_COCOA)
display_type = DT_SDL;
#elif defined(CONFIG_VNC)
vnc_display = "localhost:0,to=99";
show_vnc_port = 1;
#else
display_type = DT_NONE;
#endif
}
#if defined(CONFIG_GTK)
if (display_type == DT_GTK) {
early_gtk_display_init();
}
#endif
socket_init();
if (qemu_opts_foreach(qemu_find_opts("chardev"), chardev_init_func, NULL, 1) != 0)
exit(1);
#ifdef CONFIG_VIRTFS
if (qemu_opts_foreach(qemu_find_opts("fsdev"), fsdev_init_func, NULL, 1) != 0) {
exit(1);
}
#endif
os_daemonize();
if (pid_file && qemu_create_pidfile(pid_file) != 0) {
os_pidfile_error();
exit(1);
}
/* init the memory */
if (ram_size == 0) {
ram_size = DEFAULT_RAM_SIZE * 1024 * 1024;
}
if (qemu_opts_foreach(qemu_find_opts("device"), device_help_func, NULL, 0)
!= 0) {
exit(0);
}
configure_accelerator();
machine_opts = qemu_opts_find(qemu_find_opts("machine"), 0);
if (machine_opts) {
kernel_filename = qemu_opt_get(machine_opts, "kernel");
initrd_filename = qemu_opt_get(machine_opts, "initrd");
kernel_cmdline = qemu_opt_get(machine_opts, "append");
} else {
kernel_filename = initrd_filename = kernel_cmdline = NULL;
}
if (!kernel_cmdline) {
kernel_cmdline = "";
}
linux_boot = (kernel_filename != NULL);
if (!linux_boot && *kernel_cmdline != '\0') {
fprintf(stderr, "-append only allowed with -kernel option\n");
exit(1);
}
if (!linux_boot && initrd_filename != NULL) {
fprintf(stderr, "-initrd only allowed with -kernel option\n");
exit(1);
}
if (!linux_boot && machine_opts && qemu_opt_get(machine_opts, "dtb")) {
fprintf(stderr, "-dtb only allowed with -kernel option\n");
exit(1);
}
os_set_line_buffering();
qemu_init_cpu_loop();
qemu_mutex_lock_iothread();
#ifdef CONFIG_SPICE
/* spice needs the timers to be initialized by this point */
qemu_spice_init();
#endif
if (icount_option && (kvm_enabled() || xen_enabled())) {
fprintf(stderr, "-icount is not allowed with kvm or xen\n");
exit(1);
}
configure_icount(icount_option);
/* clean up network at qemu process termination */
atexit(&net_cleanup);
if (net_init_clients() < 0) {
exit(1);
}
#ifdef CONFIG_TPM
if (tpm_init() < 0) {
exit(1);
}
#endif
/* init the bluetooth world */
if (foreach_device_config(DEV_BT, bt_parse))
exit(1);
if (!xen_enabled()) {
/* On 32-bit hosts, QEMU is limited by virtual address space */
if (ram_size > (2047 << 20) && HOST_LONG_BITS == 32) {
fprintf(stderr, "qemu: at most 2047 MB RAM can be simulated\n");
exit(1);
}
}
cpu_exec_init_all();
bdrv_init_with_whitelist();
blk_mig_init();
/* open the virtual block devices */
if (snapshot)
qemu_opts_foreach(qemu_find_opts("drive"), drive_enable_snapshot, NULL, 0);
if (qemu_opts_foreach(qemu_find_opts("drive"), drive_init_func,
&machine->block_default_type, 1) != 0) {
exit(1);
}
default_drive(default_cdrom, snapshot, machine->block_default_type, 2,
CDROM_OPTS);
default_drive(default_floppy, snapshot, IF_FLOPPY, 0, FD_OPTS);
default_drive(default_sdcard, snapshot, IF_SD, 0, SD_OPTS);
register_savevm_live(NULL, "ram", 0, 4, &savevm_ram_handlers, NULL);
if (nb_numa_nodes > 0) {
int i;
if (nb_numa_nodes > MAX_NODES) {
nb_numa_nodes = MAX_NODES;
}
/* If no memory size if given for any node, assume the default case
* and distribute the available memory equally across all nodes
*/
for (i = 0; i < nb_numa_nodes; i++) {
if (node_mem[i] != 0)
break;
}
if (i == nb_numa_nodes) {
uint64_t usedmem = 0;
/* On Linux, the each node's border has to be 8MB aligned,
* the final node gets the rest.
*/
for (i = 0; i < nb_numa_nodes - 1; i++) {
node_mem[i] = (ram_size / nb_numa_nodes) & ~((1 << 23UL) - 1);
usedmem += node_mem[i];
}
node_mem[i] = ram_size - usedmem;
}
for (i = 0; i < nb_numa_nodes; i++) {
if (!bitmap_empty(node_cpumask[i], MAX_CPUMASK_BITS)) {
break;
}
}
/* assigning the VCPUs round-robin is easier to implement, guest OSes
* must cope with this anyway, because there are BIOSes out there in
* real machines which also use this scheme.
*/
if (i == nb_numa_nodes) {
for (i = 0; i < max_cpus; i++) {
set_bit(i, node_cpumask[i % nb_numa_nodes]);
}
}
}
if (qemu_opts_foreach(qemu_find_opts("mon"), mon_init_func, NULL, 1) != 0) {
exit(1);
}
if (foreach_device_config(DEV_SERIAL, serial_parse) < 0)
exit(1);
if (foreach_device_config(DEV_PARALLEL, parallel_parse) < 0)
exit(1);
if (foreach_device_config(DEV_VIRTCON, virtcon_parse) < 0)
exit(1);
if (foreach_device_config(DEV_SCLP, sclp_parse) < 0) {
exit(1);
}
if (foreach_device_config(DEV_DEBUGCON, debugcon_parse) < 0)
exit(1);
/* If no default VGA is requested, the default is "none". */
if (default_vga) {
if (cirrus_vga_available()) {
vga_model = "cirrus";
} else if (vga_available()) {
vga_model = "std";
}
}
select_vgahw(vga_model);
if (watchdog) {
i = select_watchdog(watchdog);
if (i > 0)
exit (i == 1 ? 1 : 0);
}
if (machine->compat_props) {
qdev_prop_register_global_list(machine->compat_props);
}
qemu_add_globals();
qdev_machine_init();
QEMUMachineInitArgs args = { .ram_size = ram_size,
.boot_device = (boot_devices[0] == '\0') ?
machine->boot_order :
boot_devices,
.kernel_filename = kernel_filename,
.kernel_cmdline = kernel_cmdline,
.initrd_filename = initrd_filename,
.cpu_model = cpu_model };
machine->init(&args);
cpu_synchronize_all_post_init();
set_numa_modes();
current_machine = machine;
/* init USB devices */
if (usb_enabled(false)) {
if (foreach_device_config(DEV_USB, usb_parse) < 0)
exit(1);
}
/* init generic devices */
if (qemu_opts_foreach(qemu_find_opts("device"), device_init_func, NULL, 1) != 0)
exit(1);
net_check_clients();
/* just use the first displaystate for the moment */
ds = get_displaystate();
/* init local displays */
switch (display_type) {
case DT_NOGRAPHIC:
break;
#if defined(CONFIG_CURSES)
case DT_CURSES:
curses_display_init(ds, full_screen);
break;
#endif
#if defined(CONFIG_SDL)
case DT_SDL:
sdl_display_init(ds, full_screen, no_frame);
break;
#elif defined(CONFIG_COCOA)
case DT_SDL:
cocoa_display_init(ds, full_screen);
break;
#endif
#if defined(CONFIG_GTK)
case DT_GTK:
gtk_display_init(ds);
break;
#endif
default:
break;
}
/* must be after terminal init, SDL library changes signal handlers */
os_setup_signal_handling();
#ifdef CONFIG_VNC
/* init remote displays */
if (vnc_display) {
Error *local_err = NULL;
vnc_display_init(ds);
vnc_display_open(ds, vnc_display, &local_err);
if (local_err != NULL) {
fprintf(stderr, "Failed to start VNC server on `%s': %s\n",
vnc_display, error_get_pretty(local_err));
error_free(local_err);
exit(1);
}
if (show_vnc_port) {
printf("VNC server running on `%s'\n", vnc_display_local_addr(ds));
}
}
#endif
#ifdef CONFIG_SPICE
if (using_spice && !qxl_enabled) {
qemu_spice_display_init(ds);
}
#endif
/* display setup */
text_consoles_set_display(ds);
if (foreach_device_config(DEV_GDB, gdbserver_start) < 0) {
exit(1);
}
qdev_machine_creation_done();
if (rom_load_all() != 0) {
fprintf(stderr, "rom loading failed\n");
exit(1);
}
/* TODO: once all bus devices are qdevified, this should be done
* when bus is created by qdev.c */
qemu_register_reset(qbus_reset_all_fn, sysbus_get_default());
qemu_run_machine_init_done_notifiers();
qemu_system_reset(VMRESET_SILENT);
if (loadvm) {
if (load_vmstate(loadvm) < 0) {
autostart = 0;
}
}
if (incoming) {
Error *local_err = NULL;
qemu_start_incoming_migration(incoming, &local_err);
if (local_err) {
fprintf(stderr, "-incoming %s: %s\n", incoming, error_get_pretty(local_err));
error_free(local_err);
exit(1);
}
} else if (autostart) {
vm_start();
}
os_setup_post();
resume_all_vcpus();
main_loop();
bdrv_close_all();
pause_all_vcpus();
res_free();
#ifdef CONFIG_TPM
tpm_cleanup();
#endif
return 0;
}
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