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xemu/vl.c
Paolo Bonzini db1a49726c split out qemu-timer.c 
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2010-03-17 11:16:15 -05:00

5047 lines
129 KiB
C
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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>
/* Needed early for CONFIG_BSD etc. */
#include "config-host.h"
#ifndef _WIN32
#include <libgen.h>
#include <pwd.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 <libutil.h>
#else
#include <util.h>
#endif
#else
#ifdef __linux__
#include <pty.h>
#include <malloc.h>
#include <sys/prctl.h>
#include <linux/ppdev.h>
#include <linux/parport.h>
#endif
#ifdef __sun__
#include <sys/stat.h>
#include <sys/ethernet.h>
#include <sys/sockio.h>
#include <netinet/arp.h>
#include <netinet/in.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>
/* See MySQL bug #7156 (http://bugs.mysql.com/bug.php?id=7156) for
discussion about Solaris header problems */
extern int madvise(caddr_t, size_t, int);
#endif
#endif
#endif
#if defined(__OpenBSD__)
#include <util.h>
#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 "hw/hw.h"
#include "hw/boards.h"
#include "hw/usb.h"
#include "hw/pcmcia.h"
#include "hw/pc.h"
#include "hw/audiodev.h"
#include "hw/isa.h"
#include "hw/baum.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 "bt-host.h"
#include "net.h"
#include "net/slirp.h"
#include "monitor.h"
#include "console.h"
#include "sysemu.h"
#include "gdbstub.h"
#include "qemu-timer.h"
#include "qemu-char.h"
#include "cache-utils.h"
#include "block.h"
#include "block_int.h"
#include "block-migration.h"
#include "dma.h"
#include "audio/audio.h"
#include "migration.h"
#include "kvm.h"
#include "balloon.h"
#include "qemu-option.h"
#include "qemu-config.h"
#include "qemu-objects.h"
#include "disas.h"
#include "exec-all.h"
#include "qemu_socket.h"
#include "slirp/libslirp.h"
#include "qemu-queue.h"
//#define DEBUG_NET
//#define DEBUG_SLIRP
#define DEFAULT_RAM_SIZE 128
#define MAX_VIRTIO_CONSOLES 1
static const char *data_dir;
const char *bios_name = NULL;
/* Note: drives_table[MAX_DRIVES] is a dummy block driver if none available
to store the VM snapshots */
struct drivelist drives = QTAILQ_HEAD_INITIALIZER(drives);
struct driveoptlist driveopts = QTAILQ_HEAD_INITIALIZER(driveopts);
enum vga_retrace_method vga_retrace_method = VGA_RETRACE_DUMB;
DisplayType display_type = DT_DEFAULT;
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 vm_running;
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;
#ifdef TARGET_SPARC
int graphic_width = 1024;
int graphic_height = 768;
int graphic_depth = 8;
#else
int graphic_width = 800;
int graphic_height = 600;
int graphic_depth = 15;
#endif
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];
#ifdef TARGET_I386
int win2k_install_hack = 0;
int rtc_td_hack = 0;
#endif
int usb_enabled = 0;
int singlestep = 0;
int smp_cpus = 1;
int max_cpus = 0;
int smp_cores = 1;
int smp_threads = 1;
const char *vnc_display;
int acpi_enabled = 1;
int no_hpet = 0;
int fd_bootchk = 1;
int no_reboot = 0;
int no_shutdown = 0;
int cursor_hide = 1;
int graphic_rotate = 0;
uint8_t irq0override = 1;
#ifndef _WIN32
int daemonize = 0;
#endif
const char *watchdog;
const char *option_rom[MAX_OPTION_ROMS];
int nb_option_roms;
int semihosting_enabled = 0;
#ifdef TARGET_ARM
int old_param = 0;
#endif
const char *qemu_name;
int alt_grab = 0;
int ctrl_grab = 0;
#if defined(TARGET_SPARC) || defined(TARGET_PPC)
unsigned int nb_prom_envs = 0;
const char *prom_envs[MAX_PROM_ENVS];
#endif
int boot_menu;
int nb_numa_nodes;
uint64_t node_mem[MAX_NODES];
uint64_t node_cpumask[MAX_NODES];
static CPUState *cur_cpu;
static CPUState *next_cpu;
static QEMUTimer *nographic_timer;
uint8_t qemu_uuid[16];
static QEMUBootSetHandler *boot_set_handler;
static void *boot_set_opaque;
#ifdef SIGRTMIN
#define SIG_IPI (SIGRTMIN+4)
#else
#define SIG_IPI SIGUSR1
#endif
static int default_serial = 1;
static int default_parallel = 1;
static int default_virtcon = 1;
static int default_monitor = 1;
static int default_vga = 1;
static int default_floppy = 1;
static int default_cdrom = 1;
static int default_sdcard = 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-drive", .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 = "cirrus-vga", .flag = &default_vga },
{ .driver = "vmware-svga", .flag = &default_vga },
};
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;
}
/***********************************************************/
/* x86 ISA bus support */
target_phys_addr_t isa_mem_base = 0;
PicState2 *isa_pic;
/***********************************************************/
void hw_error(const char *fmt, ...)
{
va_list ap;
CPUState *env;
va_start(ap, fmt);
fprintf(stderr, "qemu: hardware error: ");
vfprintf(stderr, fmt, ap);
fprintf(stderr, "\n");
for(env = first_cpu; env != NULL; env = env->next_cpu) {
fprintf(stderr, "CPU #%d:\n", env->cpu_index);
#ifdef TARGET_I386
cpu_dump_state(env, stderr, fprintf, X86_DUMP_FPU);
#else
cpu_dump_state(env, stderr, fprintf, 0);
#endif
}
va_end(ap);
abort();
}
static void set_proc_name(const char *s)
{
#if defined(__linux__) && defined(PR_SET_NAME)
char name[16];
if (!s)
return;
name[sizeof(name) - 1] = 0;
strncpy(name, s, sizeof(name));
/* Could rewrite argv[0] too, but that's a bit more complicated.
This simple way is enough for `top'. */
prctl(PR_SET_NAME, name);
#endif
}
/***************/
/* ballooning */
static QEMUBalloonEvent *qemu_balloon_event;
void *qemu_balloon_event_opaque;
void qemu_add_balloon_handler(QEMUBalloonEvent *func, void *opaque)
{
qemu_balloon_event = func;
qemu_balloon_event_opaque = opaque;
}
int qemu_balloon(ram_addr_t target, MonitorCompletion cb, void *opaque)
{
if (qemu_balloon_event) {
qemu_balloon_event(qemu_balloon_event_opaque, target, cb, opaque);
return 1;
} else {
return 0;
}
}
int qemu_balloon_status(MonitorCompletion cb, void *opaque)
{
if (qemu_balloon_event) {
qemu_balloon_event(qemu_balloon_event_opaque, 0, cb, opaque);
return 1;
} else {
return 0;
}
}
/***********************************************************/
/* real time host monotonic timer */
/* compute with 96 bit intermediate result: (a*b)/c */
uint64_t muldiv64(uint64_t a, uint32_t b, uint32_t c)
{
union {
uint64_t ll;
struct {
#ifdef HOST_WORDS_BIGENDIAN
uint32_t high, low;
#else
uint32_t low, high;
#endif
} l;
} u, res;
uint64_t rl, rh;
u.ll = a;
rl = (uint64_t)u.l.low * (uint64_t)b;
rh = (uint64_t)u.l.high * (uint64_t)b;
rh += (rl >> 32);
res.l.high = rh / c;
res.l.low = (((rh % c) << 32) + (rl & 0xffffffff)) / c;
return res.ll;
}
/***********************************************************/
/* host time/date access */
void qemu_get_timedate(struct tm *tm, int offset)
{
time_t ti;
struct tm *ret;
time(&ti);
ti += offset;
if (rtc_date_offset == -1) {
if (rtc_utc)
ret = gmtime(&ti);
else
ret = localtime(&ti);
} else {
ti -= rtc_date_offset;
ret = gmtime(&ti);
}
memcpy(tm, ret, sizeof(struct tm));
}
int qemu_timedate_diff(struct tm *tm)
{
time_t seconds;
if (rtc_date_offset == -1)
if (rtc_utc)
seconds = mktimegm(tm);
else
seconds = mktime(tm);
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, "vm")) {
rtc_clock = vm_clock;
} else {
fprintf(stderr, "qemu: invalid option value '%s'\n", value);
exit(1);
}
}
#ifdef CONFIG_TARGET_I386
value = qemu_opt_get(opts, "driftfix");
if (value) {
if (!strcmp(buf, "slew")) {
rtc_td_hack = 1;
} else if (!strcmp(buf, "none")) {
rtc_td_hack = 0;
} else {
fprintf(stderr, "qemu: invalid option value '%s'\n", value);
exit(1);
}
}
#endif
}
#ifdef _WIN32
static void socket_cleanup(void)
{
WSACleanup();
}
static int socket_init(void)
{
WSADATA Data;
int ret, err;
ret = WSAStartup(MAKEWORD(2,2), &Data);
if (ret != 0) {
err = WSAGetLastError();
fprintf(stderr, "WSAStartup: %d\n", err);
return -1;
}
atexit(socket_cleanup);
return 0;
}
#endif
/***********************************************************/
/* 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 = qemu_mallocz(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;
}
/***********************************************************/
/* QEMU Block devices */
#define HD_ALIAS "index=%d,media=disk"
#define CDROM_ALIAS "index=2,media=cdrom"
#define FD_ALIAS "index=%d,if=floppy"
#define PFLASH_ALIAS "if=pflash"
#define MTD_ALIAS "if=mtd"
#define SD_ALIAS "index=0,if=sd"
QemuOpts *drive_add(const char *file, const char *fmt, ...)
{
va_list ap;
char optstr[1024];
QemuOpts *opts;
va_start(ap, fmt);
vsnprintf(optstr, sizeof(optstr), fmt, ap);
va_end(ap);
opts = qemu_opts_parse(&qemu_drive_opts, optstr, 0);
if (!opts) {
fprintf(stderr, "%s: huh? duplicate? (%s)\n",
__FUNCTION__, optstr);
return NULL;
}
if (file)
qemu_opt_set(opts, "file", file);
return opts;
}
DriveInfo *drive_get(BlockInterfaceType type, int bus, int unit)
{
DriveInfo *dinfo;
/* seek interface, bus and unit */
QTAILQ_FOREACH(dinfo, &drives, next) {
if (dinfo->type == type &&
dinfo->bus == bus &&
dinfo->unit == unit)
return dinfo;
}
return NULL;
}
DriveInfo *drive_get_by_id(const char *id)
{
DriveInfo *dinfo;
QTAILQ_FOREACH(dinfo, &drives, next) {
if (strcmp(id, dinfo->id))
continue;
return dinfo;
}
return NULL;
}
int drive_get_max_bus(BlockInterfaceType type)
{
int max_bus;
DriveInfo *dinfo;
max_bus = -1;
QTAILQ_FOREACH(dinfo, &drives, next) {
if(dinfo->type == type &&
dinfo->bus > max_bus)
max_bus = dinfo->bus;
}
return max_bus;
}
const char *drive_get_serial(BlockDriverState *bdrv)
{
DriveInfo *dinfo;
QTAILQ_FOREACH(dinfo, &drives, next) {
if (dinfo->bdrv == bdrv)
return dinfo->serial;
}
return "\0";
}
BlockInterfaceErrorAction drive_get_on_error(
BlockDriverState *bdrv, int is_read)
{
DriveInfo *dinfo;
QTAILQ_FOREACH(dinfo, &drives, next) {
if (dinfo->bdrv == bdrv)
return is_read ? dinfo->on_read_error : dinfo->on_write_error;
}
return is_read ? BLOCK_ERR_REPORT : BLOCK_ERR_STOP_ENOSPC;
}
static void bdrv_format_print(void *opaque, const char *name)
{
fprintf(stderr, " %s", name);
}
void drive_uninit(DriveInfo *dinfo)
{
qemu_opts_del(dinfo->opts);
bdrv_delete(dinfo->bdrv);
QTAILQ_REMOVE(&drives, dinfo, next);
qemu_free(dinfo);
}
static int parse_block_error_action(const char *buf, int is_read)
{
if (!strcmp(buf, "ignore")) {
return BLOCK_ERR_IGNORE;
} else if (!is_read && !strcmp(buf, "enospc")) {
return BLOCK_ERR_STOP_ENOSPC;
} else if (!strcmp(buf, "stop")) {
return BLOCK_ERR_STOP_ANY;
} else if (!strcmp(buf, "report")) {
return BLOCK_ERR_REPORT;
} else {
fprintf(stderr, "qemu: '%s' invalid %s error action\n",
buf, is_read ? "read" : "write");
return -1;
}
}
DriveInfo *drive_init(QemuOpts *opts, void *opaque,
int *fatal_error)
{
const char *buf;
const char *file = NULL;
char devname[128];
const char *serial;
const char *mediastr = "";
BlockInterfaceType type;
enum { MEDIA_DISK, MEDIA_CDROM } media;
int bus_id, unit_id;
int cyls, heads, secs, translation;
BlockDriver *drv = NULL;
QEMUMachine *machine = opaque;
int max_devs;
int index;
int cache;
int aio = 0;
int ro = 0;
int bdrv_flags;
int on_read_error, on_write_error;
const char *devaddr;
DriveInfo *dinfo;
int snapshot = 0;
*fatal_error = 1;
translation = BIOS_ATA_TRANSLATION_AUTO;
cache = 1;
if (machine && machine->use_scsi) {
type = IF_SCSI;
max_devs = MAX_SCSI_DEVS;
pstrcpy(devname, sizeof(devname), "scsi");
} else {
type = IF_IDE;
max_devs = MAX_IDE_DEVS;
pstrcpy(devname, sizeof(devname), "ide");
}
media = MEDIA_DISK;
/* extract parameters */
bus_id = qemu_opt_get_number(opts, "bus", 0);
unit_id = qemu_opt_get_number(opts, "unit", -1);
index = qemu_opt_get_number(opts, "index", -1);
cyls = qemu_opt_get_number(opts, "cyls", 0);
heads = qemu_opt_get_number(opts, "heads", 0);
secs = qemu_opt_get_number(opts, "secs", 0);
snapshot = qemu_opt_get_bool(opts, "snapshot", 0);
ro = qemu_opt_get_bool(opts, "readonly", 0);
file = qemu_opt_get(opts, "file");
serial = qemu_opt_get(opts, "serial");
if ((buf = qemu_opt_get(opts, "if")) != NULL) {
pstrcpy(devname, sizeof(devname), buf);
if (!strcmp(buf, "ide")) {
type = IF_IDE;
max_devs = MAX_IDE_DEVS;
} else if (!strcmp(buf, "scsi")) {
type = IF_SCSI;
max_devs = MAX_SCSI_DEVS;
} else if (!strcmp(buf, "floppy")) {
type = IF_FLOPPY;
max_devs = 0;
} else if (!strcmp(buf, "pflash")) {
type = IF_PFLASH;
max_devs = 0;
} else if (!strcmp(buf, "mtd")) {
type = IF_MTD;
max_devs = 0;
} else if (!strcmp(buf, "sd")) {
type = IF_SD;
max_devs = 0;
} else if (!strcmp(buf, "virtio")) {
type = IF_VIRTIO;
max_devs = 0;
} else if (!strcmp(buf, "xen")) {
type = IF_XEN;
max_devs = 0;
} else if (!strcmp(buf, "none")) {
type = IF_NONE;
max_devs = 0;
} else {
fprintf(stderr, "qemu: unsupported bus type '%s'\n", buf);
return NULL;
}
}
if (cyls || heads || secs) {
if (cyls < 1 || (type == IF_IDE && cyls > 16383)) {
fprintf(stderr, "qemu: '%s' invalid physical cyls number\n", buf);
return NULL;
}
if (heads < 1 || (type == IF_IDE && heads > 16)) {
fprintf(stderr, "qemu: '%s' invalid physical heads number\n", buf);
return NULL;
}
if (secs < 1 || (type == IF_IDE && secs > 63)) {
fprintf(stderr, "qemu: '%s' invalid physical secs number\n", buf);
return NULL;
}
}
if ((buf = qemu_opt_get(opts, "trans")) != NULL) {
if (!cyls) {
fprintf(stderr,
"qemu: '%s' trans must be used with cyls,heads and secs\n",
buf);
return NULL;
}
if (!strcmp(buf, "none"))
translation = BIOS_ATA_TRANSLATION_NONE;
else if (!strcmp(buf, "lba"))
translation = BIOS_ATA_TRANSLATION_LBA;
else if (!strcmp(buf, "auto"))
translation = BIOS_ATA_TRANSLATION_AUTO;
else {
fprintf(stderr, "qemu: '%s' invalid translation type\n", buf);
return NULL;
}
}
if ((buf = qemu_opt_get(opts, "media")) != NULL) {
if (!strcmp(buf, "disk")) {
media = MEDIA_DISK;
} else if (!strcmp(buf, "cdrom")) {
if (cyls || secs || heads) {
fprintf(stderr,
"qemu: '%s' invalid physical CHS format\n", buf);
return NULL;
}
media = MEDIA_CDROM;
} else {
fprintf(stderr, "qemu: '%s' invalid media\n", buf);
return NULL;
}
}
if ((buf = qemu_opt_get(opts, "cache")) != NULL) {
if (!strcmp(buf, "off") || !strcmp(buf, "none"))
cache = 0;
else if (!strcmp(buf, "writethrough"))
cache = 1;
else if (!strcmp(buf, "writeback"))
cache = 2;
else {
fprintf(stderr, "qemu: invalid cache option\n");
return NULL;
}
}
#ifdef CONFIG_LINUX_AIO
if ((buf = qemu_opt_get(opts, "aio")) != NULL) {
if (!strcmp(buf, "threads"))
aio = 0;
else if (!strcmp(buf, "native"))
aio = 1;
else {
fprintf(stderr, "qemu: invalid aio option\n");
return NULL;
}
}
#endif
if ((buf = qemu_opt_get(opts, "format")) != NULL) {
if (strcmp(buf, "?") == 0) {
fprintf(stderr, "qemu: Supported formats:");
bdrv_iterate_format(bdrv_format_print, NULL);
fprintf(stderr, "\n");
return NULL;
}
drv = bdrv_find_whitelisted_format(buf);
if (!drv) {
fprintf(stderr, "qemu: '%s' invalid format\n", buf);
return NULL;
}
}
on_write_error = BLOCK_ERR_STOP_ENOSPC;
if ((buf = qemu_opt_get(opts, "werror")) != NULL) {
if (type != IF_IDE && type != IF_SCSI && type != IF_VIRTIO) {
fprintf(stderr, "werror is no supported by this format\n");
return NULL;
}
on_write_error = parse_block_error_action(buf, 0);
if (on_write_error < 0) {
return NULL;
}
}
on_read_error = BLOCK_ERR_REPORT;
if ((buf = qemu_opt_get(opts, "rerror")) != NULL) {
if (type != IF_IDE && type != IF_VIRTIO) {
fprintf(stderr, "rerror is no supported by this format\n");
return NULL;
}
on_read_error = parse_block_error_action(buf, 1);
if (on_read_error < 0) {
return NULL;
}
}
if ((devaddr = qemu_opt_get(opts, "addr")) != NULL) {
if (type != IF_VIRTIO) {
fprintf(stderr, "addr is not supported\n");
return NULL;
}
}
/* compute bus and unit according index */
if (index != -1) {
if (bus_id != 0 || unit_id != -1) {
fprintf(stderr,
"qemu: index cannot be used with bus and unit\n");
return NULL;
}
if (max_devs == 0)
{
unit_id = index;
bus_id = 0;
} else {
unit_id = index % max_devs;
bus_id = index / max_devs;
}
}
/* if user doesn't specify a unit_id,
* try to find the first free
*/
if (unit_id == -1) {
unit_id = 0;
while (drive_get(type, bus_id, unit_id) != NULL) {
unit_id++;
if (max_devs && unit_id >= max_devs) {
unit_id -= max_devs;
bus_id++;
}
}
}
/* check unit id */
if (max_devs && unit_id >= max_devs) {
fprintf(stderr, "qemu: unit %d too big (max is %d)\n",
unit_id, max_devs - 1);
return NULL;
}
/*
* ignore multiple definitions
*/
if (drive_get(type, bus_id, unit_id) != NULL) {
*fatal_error = 0;
return NULL;
}
/* init */
dinfo = qemu_mallocz(sizeof(*dinfo));
if ((buf = qemu_opts_id(opts)) != NULL) {
dinfo->id = qemu_strdup(buf);
} else {
/* no id supplied -> create one */
dinfo->id = qemu_mallocz(32);
if (type == IF_IDE || type == IF_SCSI)
mediastr = (media == MEDIA_CDROM) ? "-cd" : "-hd";
if (max_devs)
snprintf(dinfo->id, 32, "%s%i%s%i",
devname, bus_id, mediastr, unit_id);
else
snprintf(dinfo->id, 32, "%s%s%i",
devname, mediastr, unit_id);
}
dinfo->bdrv = bdrv_new(dinfo->id);
dinfo->devaddr = devaddr;
dinfo->type = type;
dinfo->bus = bus_id;
dinfo->unit = unit_id;
dinfo->on_read_error = on_read_error;
dinfo->on_write_error = on_write_error;
dinfo->opts = opts;
if (serial)
strncpy(dinfo->serial, serial, sizeof(serial));
QTAILQ_INSERT_TAIL(&drives, dinfo, next);
switch(type) {
case IF_IDE:
case IF_SCSI:
case IF_XEN:
case IF_NONE:
switch(media) {
case MEDIA_DISK:
if (cyls != 0) {
bdrv_set_geometry_hint(dinfo->bdrv, cyls, heads, secs);
bdrv_set_translation_hint(dinfo->bdrv, translation);
}
break;
case MEDIA_CDROM:
bdrv_set_type_hint(dinfo->bdrv, BDRV_TYPE_CDROM);
break;
}
break;
case IF_SD:
/* FIXME: This isn't really a floppy, but it's a reasonable
approximation. */
case IF_FLOPPY:
bdrv_set_type_hint(dinfo->bdrv, BDRV_TYPE_FLOPPY);
break;
case IF_PFLASH:
case IF_MTD:
break;
case IF_VIRTIO:
/* add virtio block device */
opts = qemu_opts_create(&qemu_device_opts, NULL, 0);
qemu_opt_set(opts, "driver", "virtio-blk-pci");
qemu_opt_set(opts, "drive", dinfo->id);
if (devaddr)
qemu_opt_set(opts, "addr", devaddr);
break;
case IF_COUNT:
abort();
}
if (!file) {
*fatal_error = 0;
return NULL;
}
bdrv_flags = 0;
if (snapshot) {
bdrv_flags |= BDRV_O_SNAPSHOT;
cache = 2; /* always use write-back with snapshot */
}
if (cache == 0) /* no caching */
bdrv_flags |= BDRV_O_NOCACHE;
else if (cache == 2) /* write-back */
bdrv_flags |= BDRV_O_CACHE_WB;
if (aio == 1) {
bdrv_flags |= BDRV_O_NATIVE_AIO;
} else {
bdrv_flags &= ~BDRV_O_NATIVE_AIO;
}
if (ro == 1) {
if (type != IF_SCSI && type != IF_VIRTIO && type != IF_FLOPPY) {
fprintf(stderr, "qemu: readonly flag not supported for drive with this interface\n");
return NULL;
}
}
/*
* cdrom is read-only. Set it now, after above interface checking
* since readonly attribute not explicitly required, so no error.
*/
if (media == MEDIA_CDROM) {
ro = 1;
}
bdrv_flags |= ro ? 0 : BDRV_O_RDWR;
if (bdrv_open2(dinfo->bdrv, file, bdrv_flags, drv) < 0) {
fprintf(stderr, "qemu: could not open disk image %s: %s\n",
file, strerror(errno));
return NULL;
}
if (bdrv_key_required(dinfo->bdrv))
autostart = 0;
*fatal_error = 0;
return dinfo;
}
static int drive_init_func(QemuOpts *opts, void *opaque)
{
QEMUMachine *machine = opaque;
int fatal_error = 0;
if (drive_init(opts, machine, &fatal_error) == NULL) {
if (fatal_error)
return 1;
}
return 0;
}
static int drive_enable_snapshot(QemuOpts *opts, void *opaque)
{
if (NULL == qemu_opt_get(opts, "snapshot")) {
qemu_opt_set(opts, "snapshot", "on");
}
return 0;
}
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 int parse_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 dependant 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');
}
return bitmap;
}
static void restore_boot_devices(void *opaque)
{
char *standard_boot_devices = opaque;
qemu_boot_set(standard_boot_devices);
qemu_unregister_reset(restore_boot_devices, standard_boot_devices);
qemu_free(standard_boot_devices);
}
static void numa_add(const char *optarg)
{
char option[128];
char *endptr;
unsigned long long value, endvalue;
int nodenr;
optarg = get_opt_name(option, 128, optarg, ',') + 1;
if (!strcmp(option, "node")) {
if (get_param_value(option, 128, "nodeid", optarg) == 0) {
nodenr = nb_numa_nodes;
} else {
nodenr = strtoull(option, NULL, 10);
}
if (get_param_value(option, 128, "mem", optarg) == 0) {
node_mem[nodenr] = 0;
} else {
value = strtoull(option, &endptr, 0);
switch (*endptr) {
case 0: case 'M': case 'm':
value <<= 20;
break;
case 'G': case 'g':
value <<= 30;
break;
}
node_mem[nodenr] = value;
}
if (get_param_value(option, 128, "cpus", optarg) == 0) {
node_cpumask[nodenr] = 0;
} else {
value = strtoull(option, &endptr, 10);
if (value >= 64) {
value = 63;
fprintf(stderr, "only 64 CPUs in NUMA mode supported.\n");
} else {
if (*endptr == '-') {
endvalue = strtoull(endptr+1, &endptr, 10);
if (endvalue >= 63) {
endvalue = 62;
fprintf(stderr,
"only 63 CPUs in NUMA mode supported.\n");
}
value = (2ULL << endvalue) - (1ULL << value);
} else {
value = 1ULL << value;
}
}
node_cpumask[nodenr] = value;
}
nb_numa_nodes++;
}
return;
}
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 {
if (sockets) {
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, int is_hotplug)
{
const char *p;
USBDevice *dev = NULL;
if (!usb_enabled)
return -1;
/* drivers with .usbdevice_name entry in USBDeviceInfo */
dev = usbdevice_create(devname);
if (dev)
goto done;
/* the other ones */
if (strstart(devname, "host:", &p)) {
dev = usb_host_device_open(p);
} else if (!strcmp(devname, "bt") || strstart(devname, "bt:", &p)) {
dev = usb_bt_init(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 usb_host_device_close(p);
if (!usb_enabled)
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, 0);
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, 1) < 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 = qemu_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;
qemu_free(entry);
}
}
void pcmcia_info(Monitor *mon)
{
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");
}
/***********************************************************/
/* I/O handling */
typedef struct IOHandlerRecord {
int fd;
IOCanRWHandler *fd_read_poll;
IOHandler *fd_read;
IOHandler *fd_write;
int deleted;
void *opaque;
/* temporary data */
struct pollfd *ufd;
struct IOHandlerRecord *next;
} IOHandlerRecord;
static IOHandlerRecord *first_io_handler;
/* XXX: fd_read_poll should be suppressed, but an API change is
necessary in the character devices to suppress fd_can_read(). */
int qemu_set_fd_handler2(int fd,
IOCanRWHandler *fd_read_poll,
IOHandler *fd_read,
IOHandler *fd_write,
void *opaque)
{
IOHandlerRecord **pioh, *ioh;
if (!fd_read && !fd_write) {
pioh = &first_io_handler;
for(;;) {
ioh = *pioh;
if (ioh == NULL)
break;
if (ioh->fd == fd) {
ioh->deleted = 1;
break;
}
pioh = &ioh->next;
}
} else {
for(ioh = first_io_handler; ioh != NULL; ioh = ioh->next) {
if (ioh->fd == fd)
goto found;
}
ioh = qemu_mallocz(sizeof(IOHandlerRecord));
ioh->next = first_io_handler;
first_io_handler = ioh;
found:
ioh->fd = fd;
ioh->fd_read_poll = fd_read_poll;
ioh->fd_read = fd_read;
ioh->fd_write = fd_write;
ioh->opaque = opaque;
ioh->deleted = 0;
}
return 0;
}
int qemu_set_fd_handler(int fd,
IOHandler *fd_read,
IOHandler *fd_write,
void *opaque)
{
return qemu_set_fd_handler2(fd, NULL, fd_read, fd_write, opaque);
}
#ifdef _WIN32
/***********************************************************/
/* Polling handling */
typedef struct PollingEntry {
PollingFunc *func;
void *opaque;
struct PollingEntry *next;
} PollingEntry;
static PollingEntry *first_polling_entry;
int qemu_add_polling_cb(PollingFunc *func, void *opaque)
{
PollingEntry **ppe, *pe;
pe = qemu_mallocz(sizeof(PollingEntry));
pe->func = func;
pe->opaque = opaque;
for(ppe = &first_polling_entry; *ppe != NULL; ppe = &(*ppe)->next);
*ppe = pe;
return 0;
}
void qemu_del_polling_cb(PollingFunc *func, void *opaque)
{
PollingEntry **ppe, *pe;
for(ppe = &first_polling_entry; *ppe != NULL; ppe = &(*ppe)->next) {
pe = *ppe;
if (pe->func == func && pe->opaque == opaque) {
*ppe = pe->next;
qemu_free(pe);
break;
}
}
}
/***********************************************************/
/* Wait objects support */
typedef struct WaitObjects {
int num;
HANDLE events[MAXIMUM_WAIT_OBJECTS + 1];
WaitObjectFunc *func[MAXIMUM_WAIT_OBJECTS + 1];
void *opaque[MAXIMUM_WAIT_OBJECTS + 1];
} WaitObjects;
static WaitObjects wait_objects = {0};
int qemu_add_wait_object(HANDLE handle, WaitObjectFunc *func, void *opaque)
{
WaitObjects *w = &wait_objects;
if (w->num >= MAXIMUM_WAIT_OBJECTS)
return -1;
w->events[w->num] = handle;
w->func[w->num] = func;
w->opaque[w->num] = opaque;
w->num++;
return 0;
}
void qemu_del_wait_object(HANDLE handle, WaitObjectFunc *func, void *opaque)
{
int i, found;
WaitObjects *w = &wait_objects;
found = 0;
for (i = 0; i < w->num; i++) {
if (w->events[i] == handle)
found = 1;
if (found) {
w->events[i] = w->events[i + 1];
w->func[i] = w->func[i + 1];
w->opaque[i] = w->opaque[i + 1];
}
}
if (found)
w->num--;
}
#endif
/***********************************************************/
/* ram save/restore */
#define RAM_SAVE_FLAG_FULL 0x01 /* Obsolete, not used anymore */
#define RAM_SAVE_FLAG_COMPRESS 0x02
#define RAM_SAVE_FLAG_MEM_SIZE 0x04
#define RAM_SAVE_FLAG_PAGE 0x08
#define RAM_SAVE_FLAG_EOS 0x10
static int is_dup_page(uint8_t *page, uint8_t ch)
{
uint32_t val = ch << 24 | ch << 16 | ch << 8 | ch;
uint32_t *array = (uint32_t *)page;
int i;
for (i = 0; i < (TARGET_PAGE_SIZE / 4); i++) {
if (array[i] != val)
return 0;
}
return 1;
}
static int ram_save_block(QEMUFile *f)
{
static ram_addr_t current_addr = 0;
ram_addr_t saved_addr = current_addr;
ram_addr_t addr = 0;
int found = 0;
while (addr < last_ram_offset) {
if (cpu_physical_memory_get_dirty(current_addr, MIGRATION_DIRTY_FLAG)) {
uint8_t *p;
cpu_physical_memory_reset_dirty(current_addr,
current_addr + TARGET_PAGE_SIZE,
MIGRATION_DIRTY_FLAG);
p = qemu_get_ram_ptr(current_addr);
if (is_dup_page(p, *p)) {
qemu_put_be64(f, current_addr | RAM_SAVE_FLAG_COMPRESS);
qemu_put_byte(f, *p);
} else {
qemu_put_be64(f, current_addr | RAM_SAVE_FLAG_PAGE);
qemu_put_buffer(f, p, TARGET_PAGE_SIZE);
}
found = 1;
break;
}
addr += TARGET_PAGE_SIZE;
current_addr = (saved_addr + addr) % last_ram_offset;
}
return found;
}
static uint64_t bytes_transferred;
static ram_addr_t ram_save_remaining(void)
{
ram_addr_t addr;
ram_addr_t count = 0;
for (addr = 0; addr < last_ram_offset; addr += TARGET_PAGE_SIZE) {
if (cpu_physical_memory_get_dirty(addr, MIGRATION_DIRTY_FLAG))
count++;
}
return count;
}
uint64_t ram_bytes_remaining(void)
{
return ram_save_remaining() * TARGET_PAGE_SIZE;
}
uint64_t ram_bytes_transferred(void)
{
return bytes_transferred;
}
uint64_t ram_bytes_total(void)
{
return last_ram_offset;
}
static int ram_save_live(Monitor *mon, QEMUFile *f, int stage, void *opaque)
{
ram_addr_t addr;
uint64_t bytes_transferred_last;
double bwidth = 0;
uint64_t expected_time = 0;
if (stage < 0) {
cpu_physical_memory_set_dirty_tracking(0);
return 0;
}
if (cpu_physical_sync_dirty_bitmap(0, TARGET_PHYS_ADDR_MAX) != 0) {
qemu_file_set_error(f);
return 0;
}
if (stage == 1) {
bytes_transferred = 0;
/* Make sure all dirty bits are set */
for (addr = 0; addr < last_ram_offset; addr += TARGET_PAGE_SIZE) {
if (!cpu_physical_memory_get_dirty(addr, MIGRATION_DIRTY_FLAG))
cpu_physical_memory_set_dirty(addr);
}
/* Enable dirty memory tracking */
cpu_physical_memory_set_dirty_tracking(1);
qemu_put_be64(f, last_ram_offset | RAM_SAVE_FLAG_MEM_SIZE);
}
bytes_transferred_last = bytes_transferred;
bwidth = qemu_get_clock_ns(rt_clock);
while (!qemu_file_rate_limit(f)) {
int ret;
ret = ram_save_block(f);
bytes_transferred += ret * TARGET_PAGE_SIZE;
if (ret == 0) /* no more blocks */
break;
}
bwidth = qemu_get_clock_ns(rt_clock) - bwidth;
bwidth = (bytes_transferred - bytes_transferred_last) / bwidth;
/* if we haven't transferred anything this round, force expected_time to a
* a very high value, but without crashing */
if (bwidth == 0)
bwidth = 0.000001;
/* try transferring iterative blocks of memory */
if (stage == 3) {
/* flush all remaining blocks regardless of rate limiting */
while (ram_save_block(f) != 0) {
bytes_transferred += TARGET_PAGE_SIZE;
}
cpu_physical_memory_set_dirty_tracking(0);
}
qemu_put_be64(f, RAM_SAVE_FLAG_EOS);
expected_time = ram_save_remaining() * TARGET_PAGE_SIZE / bwidth;
return (stage == 2) && (expected_time <= migrate_max_downtime());
}
static int ram_load(QEMUFile *f, void *opaque, int version_id)
{
ram_addr_t addr;
int flags;
if (version_id != 3)
return -EINVAL;
do {
addr = qemu_get_be64(f);
flags = addr & ~TARGET_PAGE_MASK;
addr &= TARGET_PAGE_MASK;
if (flags & RAM_SAVE_FLAG_MEM_SIZE) {
if (addr != last_ram_offset)
return -EINVAL;
}
if (flags & RAM_SAVE_FLAG_COMPRESS) {
uint8_t ch = qemu_get_byte(f);
memset(qemu_get_ram_ptr(addr), ch, TARGET_PAGE_SIZE);
#ifndef _WIN32
if (ch == 0 &&
(!kvm_enabled() || kvm_has_sync_mmu())) {
madvise(qemu_get_ram_ptr(addr), TARGET_PAGE_SIZE, MADV_DONTNEED);
}
#endif
} else if (flags & RAM_SAVE_FLAG_PAGE) {
qemu_get_buffer(f, qemu_get_ram_ptr(addr), TARGET_PAGE_SIZE);
}
if (qemu_file_has_error(f)) {
return -EIO;
}
} while (!(flags & RAM_SAVE_FLAG_EOS));
return 0;
}
void qemu_service_io(void)
{
qemu_notify_event();
}
/***********************************************************/
/* 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;
}
static QEMUMachine *find_default_machine(void)
{
QEMUMachine *m;
for(m = first_machine; m != NULL; m = m->next) {
if (m->is_default) {
return m;
}
}
return NULL;
}
/***********************************************************/
/* main execution loop */
static void gui_update(void *opaque)
{
uint64_t interval = GUI_REFRESH_INTERVAL;
DisplayState *ds = opaque;
DisplayChangeListener *dcl = ds->listeners;
qemu_flush_coalesced_mmio_buffer();
dpy_refresh(ds);
while (dcl != NULL) {
if (dcl->gui_timer_interval &&
dcl->gui_timer_interval < interval)
interval = dcl->gui_timer_interval;
dcl = dcl->next;
}
qemu_mod_timer(ds->gui_timer, interval + qemu_get_clock(rt_clock));
}
static void nographic_update(void *opaque)
{
uint64_t interval = GUI_REFRESH_INTERVAL;
qemu_flush_coalesced_mmio_buffer();
qemu_mod_timer(nographic_timer, interval + qemu_get_clock(rt_clock));
}
void cpu_synchronize_all_states(void)
{
CPUState *cpu;
for (cpu = first_cpu; cpu; cpu = cpu->next_cpu) {
cpu_synchronize_state(cpu);
}
}
void cpu_synchronize_all_post_reset(void)
{
CPUState *cpu;
for (cpu = first_cpu; cpu; cpu = cpu->next_cpu) {
cpu_synchronize_post_reset(cpu);
}
}
void cpu_synchronize_all_post_init(void)
{
CPUState *cpu;
for (cpu = first_cpu; cpu; cpu = cpu->next_cpu) {
cpu_synchronize_post_init(cpu);
}
}
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 = qemu_mallocz(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);
qemu_free (e);
}
static void vm_state_notify(int running, int reason)
{
VMChangeStateEntry *e;
for (e = vm_change_state_head.lh_first; e; e = e->entries.le_next) {
e->cb(e->opaque, running, reason);
}
}
static void resume_all_vcpus(void);
static void pause_all_vcpus(void);
void vm_start(void)
{
if (!vm_running) {
cpu_enable_ticks();
vm_running = 1;
vm_state_notify(1, 0);
resume_all_vcpus();
}
}
/* 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;
static int powerdown_requested;
static int debug_requested;
static int vmstop_requested;
int qemu_shutdown_requested(void)
{
int r = shutdown_requested;
shutdown_requested = 0;
return r;
}
int qemu_reset_requested(void)
{
int r = reset_requested;
reset_requested = 0;
return r;
}
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;
}
static int qemu_vmstop_requested(void)
{
int r = vmstop_requested;
vmstop_requested = 0;
return r;
}
static void do_vm_stop(int reason)
{
if (vm_running) {
cpu_disable_ticks();
vm_running = 0;
pause_all_vcpus();
vm_state_notify(0, reason);
monitor_protocol_event(QEVENT_STOP, NULL);
}
}
void qemu_register_reset(QEMUResetHandler *func, void *opaque)
{
QEMUResetEntry *re = qemu_mallocz(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);
qemu_free(re);
return;
}
}
}
void qemu_system_reset(void)
{
QEMUResetEntry *re, *nre;
/* reset all devices */
QTAILQ_FOREACH_SAFE(re, &reset_handlers, entry, nre) {
re->func(re->opaque);
}
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;
}
qemu_notify_event();
}
void qemu_system_shutdown_request(void)
{
shutdown_requested = 1;
qemu_notify_event();
}
void qemu_system_powerdown_request(void)
{
powerdown_requested = 1;
qemu_notify_event();
}
static int cpu_can_run(CPUState *env)
{
if (env->stop)
return 0;
if (env->stopped)
return 0;
if (!vm_running)
return 0;
return 1;
}
static int cpu_has_work(CPUState *env)
{
if (env->stop)
return 1;
if (env->stopped)
return 0;
if (!env->halted)
return 1;
if (qemu_cpu_has_work(env))
return 1;
return 0;
}
static int tcg_has_work(void)
{
CPUState *env;
for (env = first_cpu; env != NULL; env = env->next_cpu)
if (cpu_has_work(env))
return 1;
return 0;
}
#ifndef _WIN32
static int io_thread_fd = -1;
static void qemu_event_increment(void)
{
/* Write 8 bytes to be compatible with eventfd. */
static uint64_t val = 1;
ssize_t ret;
if (io_thread_fd == -1)
return;
do {
ret = write(io_thread_fd, &val, sizeof(val));
} while (ret < 0 && errno == EINTR);
/* EAGAIN is fine, a read must be pending. */
if (ret < 0 && errno != EAGAIN) {
fprintf(stderr, "qemu_event_increment: write() filed: %s\n",
strerror(errno));
exit (1);
}
}
static void qemu_event_read(void *opaque)
{
int fd = (unsigned long)opaque;
ssize_t len;
char buffer[512];
/* Drain the notify pipe. For eventfd, only 8 bytes will be read. */
do {
len = read(fd, buffer, sizeof(buffer));
} while ((len == -1 && errno == EINTR) || len == sizeof(buffer));
}
static int qemu_event_init(void)
{
int err;
int fds[2];
err = qemu_eventfd(fds);
if (err == -1)
return -errno;
err = fcntl_setfl(fds[0], O_NONBLOCK);
if (err < 0)
goto fail;
err = fcntl_setfl(fds[1], O_NONBLOCK);
if (err < 0)
goto fail;
qemu_set_fd_handler2(fds[0], NULL, qemu_event_read, NULL,
(void *)(unsigned long)fds[0]);
io_thread_fd = fds[1];
return 0;
fail:
close(fds[0]);
close(fds[1]);
return err;
}
#else
HANDLE qemu_event_handle;
static void dummy_event_handler(void *opaque)
{
}
static int qemu_event_init(void)
{
qemu_event_handle = CreateEvent(NULL, FALSE, FALSE, NULL);
if (!qemu_event_handle) {
fprintf(stderr, "Failed CreateEvent: %ld\n", GetLastError());
return -1;
}
qemu_add_wait_object(qemu_event_handle, dummy_event_handler, NULL);
return 0;
}
static void qemu_event_increment(void)
{
if (!SetEvent(qemu_event_handle)) {
fprintf(stderr, "qemu_event_increment: SetEvent failed: %ld\n",
GetLastError());
exit (1);
}
}
#endif
#ifndef CONFIG_IOTHREAD
static int qemu_init_main_loop(void)
{
return qemu_event_init();
}
void qemu_init_vcpu(void *_env)
{
CPUState *env = _env;
env->nr_cores = smp_cores;
env->nr_threads = smp_threads;
if (kvm_enabled())
kvm_init_vcpu(env);
return;
}
int qemu_cpu_self(void *env)
{
return 1;
}
static void resume_all_vcpus(void)
{
}
static void pause_all_vcpus(void)
{
}
void qemu_cpu_kick(void *env)
{
return;
}
void qemu_notify_event(void)
{
CPUState *env = cpu_single_env;
qemu_event_increment ();
if (env) {
cpu_exit(env);
}
if (next_cpu && env != next_cpu) {
cpu_exit(next_cpu);
}
}
void qemu_mutex_lock_iothread(void) {}
void qemu_mutex_unlock_iothread(void) {}
void vm_stop(int reason)
{
do_vm_stop(reason);
}
#else /* CONFIG_IOTHREAD */
#include "qemu-thread.h"
QemuMutex qemu_global_mutex;
static QemuMutex qemu_fair_mutex;
static QemuThread io_thread;
static QemuThread *tcg_cpu_thread;
static QemuCond *tcg_halt_cond;
static int qemu_system_ready;
/* cpu creation */
static QemuCond qemu_cpu_cond;
/* system init */
static QemuCond qemu_system_cond;
static QemuCond qemu_pause_cond;
static void tcg_block_io_signals(void);
static void kvm_block_io_signals(CPUState *env);
static void unblock_io_signals(void);
static int qemu_init_main_loop(void)
{
int ret;
ret = qemu_event_init();
if (ret)
return ret;
qemu_cond_init(&qemu_pause_cond);
qemu_mutex_init(&qemu_fair_mutex);
qemu_mutex_init(&qemu_global_mutex);
qemu_mutex_lock(&qemu_global_mutex);
unblock_io_signals();
qemu_thread_self(&io_thread);
return 0;
}
static void qemu_wait_io_event_common(CPUState *env)
{
if (env->stop) {
env->stop = 0;
env->stopped = 1;
qemu_cond_signal(&qemu_pause_cond);
}
}
static void qemu_wait_io_event(CPUState *env)
{
while (!tcg_has_work())
qemu_cond_timedwait(env->halt_cond, &qemu_global_mutex, 1000);
qemu_mutex_unlock(&qemu_global_mutex);
/*
* Users of qemu_global_mutex can be starved, having no chance
* to acquire it since this path will get to it first.
* So use another lock to provide fairness.
*/
qemu_mutex_lock(&qemu_fair_mutex);
qemu_mutex_unlock(&qemu_fair_mutex);
qemu_mutex_lock(&qemu_global_mutex);
qemu_wait_io_event_common(env);
}
static void qemu_kvm_eat_signal(CPUState *env, int timeout)
{
struct timespec ts;
int r, e;
siginfo_t siginfo;
sigset_t waitset;
ts.tv_sec = timeout / 1000;
ts.tv_nsec = (timeout % 1000) * 1000000;
sigemptyset(&waitset);
sigaddset(&waitset, SIG_IPI);
qemu_mutex_unlock(&qemu_global_mutex);
r = sigtimedwait(&waitset, &siginfo, &ts);
e = errno;
qemu_mutex_lock(&qemu_global_mutex);
if (r == -1 && !(e == EAGAIN || e == EINTR)) {
fprintf(stderr, "sigtimedwait: %s\n", strerror(e));
exit(1);
}
}
static void qemu_kvm_wait_io_event(CPUState *env)
{
while (!cpu_has_work(env))
qemu_cond_timedwait(env->halt_cond, &qemu_global_mutex, 1000);
qemu_kvm_eat_signal(env, 0);
qemu_wait_io_event_common(env);
}
static int qemu_cpu_exec(CPUState *env);
static void *kvm_cpu_thread_fn(void *arg)
{
CPUState *env = arg;
qemu_thread_self(env->thread);
if (kvm_enabled())
kvm_init_vcpu(env);
kvm_block_io_signals(env);
/* signal CPU creation */
qemu_mutex_lock(&qemu_global_mutex);
env->created = 1;
qemu_cond_signal(&qemu_cpu_cond);
/* and wait for machine initialization */
while (!qemu_system_ready)
qemu_cond_timedwait(&qemu_system_cond, &qemu_global_mutex, 100);
while (1) {
if (cpu_can_run(env))
qemu_cpu_exec(env);
qemu_kvm_wait_io_event(env);
}
return NULL;
}
static bool tcg_cpu_exec(void);
static void *tcg_cpu_thread_fn(void *arg)
{
CPUState *env = arg;
tcg_block_io_signals();
qemu_thread_self(env->thread);
/* signal CPU creation */
qemu_mutex_lock(&qemu_global_mutex);
for (env = first_cpu; env != NULL; env = env->next_cpu)
env->created = 1;
qemu_cond_signal(&qemu_cpu_cond);
/* and wait for machine initialization */
while (!qemu_system_ready)
qemu_cond_timedwait(&qemu_system_cond, &qemu_global_mutex, 100);
while (1) {
tcg_cpu_exec();
qemu_wait_io_event(cur_cpu);
}
return NULL;
}
void qemu_cpu_kick(void *_env)
{
CPUState *env = _env;
qemu_cond_broadcast(env->halt_cond);
if (kvm_enabled())
qemu_thread_signal(env->thread, SIG_IPI);
}
int qemu_cpu_self(void *_env)
{
CPUState *env = _env;
QemuThread this;
qemu_thread_self(&this);
return qemu_thread_equal(&this, env->thread);
}
static void cpu_signal(int sig)
{
if (cpu_single_env)
cpu_exit(cpu_single_env);
}
static void tcg_block_io_signals(void)
{
sigset_t set;
struct sigaction sigact;
sigemptyset(&set);
sigaddset(&set, SIGUSR2);
sigaddset(&set, SIGIO);
sigaddset(&set, SIGALRM);
sigaddset(&set, SIGCHLD);
pthread_sigmask(SIG_BLOCK, &set, NULL);
sigemptyset(&set);
sigaddset(&set, SIG_IPI);
pthread_sigmask(SIG_UNBLOCK, &set, NULL);
memset(&sigact, 0, sizeof(sigact));
sigact.sa_handler = cpu_signal;
sigaction(SIG_IPI, &sigact, NULL);
}
static void dummy_signal(int sig)
{
}
static void kvm_block_io_signals(CPUState *env)
{
int r;
sigset_t set;
struct sigaction sigact;
sigemptyset(&set);
sigaddset(&set, SIGUSR2);
sigaddset(&set, SIGIO);
sigaddset(&set, SIGALRM);
sigaddset(&set, SIGCHLD);
sigaddset(&set, SIG_IPI);
pthread_sigmask(SIG_BLOCK, &set, NULL);
pthread_sigmask(SIG_BLOCK, NULL, &set);
sigdelset(&set, SIG_IPI);
memset(&sigact, 0, sizeof(sigact));
sigact.sa_handler = dummy_signal;
sigaction(SIG_IPI, &sigact, NULL);
r = kvm_set_signal_mask(env, &set);
if (r) {
fprintf(stderr, "kvm_set_signal_mask: %s\n", strerror(r));
exit(1);
}
}
static void unblock_io_signals(void)
{
sigset_t set;
sigemptyset(&set);
sigaddset(&set, SIGUSR2);
sigaddset(&set, SIGIO);
sigaddset(&set, SIGALRM);
pthread_sigmask(SIG_UNBLOCK, &set, NULL);
sigemptyset(&set);
sigaddset(&set, SIG_IPI);
pthread_sigmask(SIG_BLOCK, &set, NULL);
}
static void qemu_signal_lock(unsigned int msecs)
{
qemu_mutex_lock(&qemu_fair_mutex);
while (qemu_mutex_trylock(&qemu_global_mutex)) {
qemu_thread_signal(tcg_cpu_thread, SIG_IPI);
if (!qemu_mutex_timedlock(&qemu_global_mutex, msecs))
break;
}
qemu_mutex_unlock(&qemu_fair_mutex);
}
void qemu_mutex_lock_iothread(void)
{
if (kvm_enabled()) {
qemu_mutex_lock(&qemu_fair_mutex);
qemu_mutex_lock(&qemu_global_mutex);
qemu_mutex_unlock(&qemu_fair_mutex);
} else
qemu_signal_lock(100);
}
void qemu_mutex_unlock_iothread(void)
{
qemu_mutex_unlock(&qemu_global_mutex);
}
static int all_vcpus_paused(void)
{
CPUState *penv = first_cpu;
while (penv) {
if (!penv->stopped)
return 0;
penv = (CPUState *)penv->next_cpu;
}
return 1;
}
static void pause_all_vcpus(void)
{
CPUState *penv = first_cpu;
while (penv) {
penv->stop = 1;
qemu_thread_signal(penv->thread, SIG_IPI);
qemu_cpu_kick(penv);
penv = (CPUState *)penv->next_cpu;
}
while (!all_vcpus_paused()) {
qemu_cond_timedwait(&qemu_pause_cond, &qemu_global_mutex, 100);
penv = first_cpu;
while (penv) {
qemu_thread_signal(penv->thread, SIG_IPI);
penv = (CPUState *)penv->next_cpu;
}
}
}
static void resume_all_vcpus(void)
{
CPUState *penv = first_cpu;
while (penv) {
penv->stop = 0;
penv->stopped = 0;
qemu_thread_signal(penv->thread, SIG_IPI);
qemu_cpu_kick(penv);
penv = (CPUState *)penv->next_cpu;
}
}
static void tcg_init_vcpu(void *_env)
{
CPUState *env = _env;
/* share a single thread for all cpus with TCG */
if (!tcg_cpu_thread) {
env->thread = qemu_mallocz(sizeof(QemuThread));
env->halt_cond = qemu_mallocz(sizeof(QemuCond));
qemu_cond_init(env->halt_cond);
qemu_thread_create(env->thread, tcg_cpu_thread_fn, env);
while (env->created == 0)
qemu_cond_timedwait(&qemu_cpu_cond, &qemu_global_mutex, 100);
tcg_cpu_thread = env->thread;
tcg_halt_cond = env->halt_cond;
} else {
env->thread = tcg_cpu_thread;
env->halt_cond = tcg_halt_cond;
}
}
static void kvm_start_vcpu(CPUState *env)
{
env->thread = qemu_mallocz(sizeof(QemuThread));
env->halt_cond = qemu_mallocz(sizeof(QemuCond));
qemu_cond_init(env->halt_cond);
qemu_thread_create(env->thread, kvm_cpu_thread_fn, env);
while (env->created == 0)
qemu_cond_timedwait(&qemu_cpu_cond, &qemu_global_mutex, 100);
}
void qemu_init_vcpu(void *_env)
{
CPUState *env = _env;
env->nr_cores = smp_cores;
env->nr_threads = smp_threads;
if (kvm_enabled())
kvm_start_vcpu(env);
else
tcg_init_vcpu(env);
}
void qemu_notify_event(void)
{
qemu_event_increment();
}
static void qemu_system_vmstop_request(int reason)
{
vmstop_requested = reason;
qemu_notify_event();
}
void vm_stop(int reason)
{
QemuThread me;
qemu_thread_self(&me);
if (!qemu_thread_equal(&me, &io_thread)) {
qemu_system_vmstop_request(reason);
/*
* FIXME: should not return to device code in case
* vm_stop() has been requested.
*/
if (cpu_single_env) {
cpu_exit(cpu_single_env);
cpu_single_env->stop = 1;
}
return;
}
do_vm_stop(reason);
}
#endif
#ifdef _WIN32
static void host_main_loop_wait(int *timeout)
{
int ret, ret2, i;
PollingEntry *pe;
/* XXX: need to suppress polling by better using win32 events */
ret = 0;
for(pe = first_polling_entry; pe != NULL; pe = pe->next) {
ret |= pe->func(pe->opaque);
}
if (ret == 0) {
int err;
WaitObjects *w = &wait_objects;
ret = WaitForMultipleObjects(w->num, w->events, FALSE, *timeout);
if (WAIT_OBJECT_0 + 0 <= ret && ret <= WAIT_OBJECT_0 + w->num - 1) {
if (w->func[ret - WAIT_OBJECT_0])
w->func[ret - WAIT_OBJECT_0](w->opaque[ret - WAIT_OBJECT_0]);
/* Check for additional signaled events */
for(i = (ret - WAIT_OBJECT_0 + 1); i < w->num; i++) {
/* Check if event is signaled */
ret2 = WaitForSingleObject(w->events[i], 0);
if(ret2 == WAIT_OBJECT_0) {
if (w->func[i])
w->func[i](w->opaque[i]);
} else if (ret2 == WAIT_TIMEOUT) {
} else {
err = GetLastError();
fprintf(stderr, "WaitForSingleObject error %d %d\n", i, err);
}
}
} else if (ret == WAIT_TIMEOUT) {
} else {
err = GetLastError();
fprintf(stderr, "WaitForMultipleObjects error %d %d\n", ret, err);
}
}
*timeout = 0;
}
#else
static void host_main_loop_wait(int *timeout)
{
}
#endif
void main_loop_wait(int nonblocking)
{
IOHandlerRecord *ioh;
fd_set rfds, wfds, xfds;
int ret, nfds;
struct timeval tv;
int timeout;
if (nonblocking)
timeout = 0;
else {
timeout = qemu_calculate_timeout();
qemu_bh_update_timeout(&timeout);
}
host_main_loop_wait(&timeout);
/* poll any events */
/* XXX: separate device handlers from system ones */
nfds = -1;
FD_ZERO(&rfds);
FD_ZERO(&wfds);
FD_ZERO(&xfds);
for(ioh = first_io_handler; ioh != NULL; ioh = ioh->next) {
if (ioh->deleted)
continue;
if (ioh->fd_read &&
(!ioh->fd_read_poll ||
ioh->fd_read_poll(ioh->opaque) != 0)) {
FD_SET(ioh->fd, &rfds);
if (ioh->fd > nfds)
nfds = ioh->fd;
}
if (ioh->fd_write) {
FD_SET(ioh->fd, &wfds);
if (ioh->fd > nfds)
nfds = ioh->fd;
}
}
tv.tv_sec = timeout / 1000;
tv.tv_usec = (timeout % 1000) * 1000;
slirp_select_fill(&nfds, &rfds, &wfds, &xfds);
qemu_mutex_unlock_iothread();
ret = select(nfds + 1, &rfds, &wfds, &xfds, &tv);
qemu_mutex_lock_iothread();
if (ret > 0) {
IOHandlerRecord **pioh;
for(ioh = first_io_handler; ioh != NULL; ioh = ioh->next) {
if (!ioh->deleted && ioh->fd_read && FD_ISSET(ioh->fd, &rfds)) {
ioh->fd_read(ioh->opaque);
}
if (!ioh->deleted && ioh->fd_write && FD_ISSET(ioh->fd, &wfds)) {
ioh->fd_write(ioh->opaque);
}
}
/* remove deleted IO handlers */
pioh = &first_io_handler;
while (*pioh) {
ioh = *pioh;
if (ioh->deleted) {
*pioh = ioh->next;
qemu_free(ioh);
} else
pioh = &ioh->next;
}
}
slirp_select_poll(&rfds, &wfds, &xfds, (ret < 0));
qemu_run_all_timers();
/* Check bottom-halves last in case any of the earlier events triggered
them. */
qemu_bh_poll();
}
static int qemu_cpu_exec(CPUState *env)
{
int ret;
#ifdef CONFIG_PROFILER
int64_t ti;
#endif
#ifdef CONFIG_PROFILER
ti = profile_getclock();
#endif
if (use_icount) {
int64_t count;
int decr;
qemu_icount -= (env->icount_decr.u16.low + env->icount_extra);
env->icount_decr.u16.low = 0;
env->icount_extra = 0;
count = qemu_icount_round (qemu_next_deadline());
qemu_icount += count;
decr = (count > 0xffff) ? 0xffff : count;
count -= decr;
env->icount_decr.u16.low = decr;
env->icount_extra = count;
}
ret = cpu_exec(env);
#ifdef CONFIG_PROFILER
qemu_time += profile_getclock() - ti;
#endif
if (use_icount) {
/* Fold pending instructions back into the
instruction counter, and clear the interrupt flag. */
qemu_icount -= (env->icount_decr.u16.low
+ env->icount_extra);
env->icount_decr.u32 = 0;
env->icount_extra = 0;
}
return ret;
}
static bool tcg_cpu_exec(void)
{
int ret = 0;
if (next_cpu == NULL)
next_cpu = first_cpu;
for (; next_cpu != NULL; next_cpu = next_cpu->next_cpu) {
CPUState *env = cur_cpu = next_cpu;
qemu_clock_enable(vm_clock,
(cur_cpu->singlestep_enabled & SSTEP_NOTIMER) == 0);
if (qemu_alarm_pending())
break;
if (cpu_can_run(env))
ret = qemu_cpu_exec(env);
else if (env->stop)
break;
if (ret == EXCP_DEBUG) {
gdb_set_stop_cpu(env);
debug_requested = 1;
break;
}
}
return tcg_has_work();
}
static int vm_can_run(void)
{
if (powerdown_requested)
return 0;
if (reset_requested)
return 0;
if (shutdown_requested)
return 0;
if (debug_requested)
return 0;
return 1;
}
qemu_irq qemu_system_powerdown;
static void main_loop(void)
{
int r;
#ifdef CONFIG_IOTHREAD
qemu_system_ready = 1;
qemu_cond_broadcast(&qemu_system_cond);
#endif
for (;;) {
do {
bool nonblocking = false;
#ifdef CONFIG_PROFILER
int64_t ti;
#endif
#ifndef CONFIG_IOTHREAD
nonblocking = tcg_cpu_exec();
#endif
#ifdef CONFIG_PROFILER
ti = profile_getclock();
#endif
main_loop_wait(nonblocking);
#ifdef CONFIG_PROFILER
dev_time += profile_getclock() - ti;
#endif
} while (vm_can_run());
if (qemu_debug_requested()) {
vm_stop(EXCP_DEBUG);
}
if (qemu_shutdown_requested()) {
monitor_protocol_event(QEVENT_SHUTDOWN, NULL);
if (no_shutdown) {
vm_stop(0);
no_shutdown = 0;
} else
break;
}
if (qemu_reset_requested()) {
pause_all_vcpus();
qemu_system_reset();
resume_all_vcpus();
}
if (qemu_powerdown_requested()) {
monitor_protocol_event(QEVENT_POWERDOWN, NULL);
qemu_irq_raise(qemu_system_powerdown);
}
if ((r = qemu_vmstop_requested())) {
vm_stop(r);
}
}
pause_all_vcpus();
}
static void version(void)
{
printf("QEMU PC emulator version " QEMU_VERSION QEMU_PKGVERSION ", Copyright (c) 2003-2008 Fabrice Bellard\n");
}
static void help(int exitcode)
{
const char *options_help =
#define DEF(option, opt_arg, opt_enum, opt_help) \
opt_help
#define DEFHEADING(text) stringify(text) "\n"
#include "qemu-options.h"
#undef DEF
#undef DEFHEADING
#undef GEN_DOCS
;
version();
printf("usage: %s [options] [disk_image]\n"
"\n"
"'disk_image' is a raw hard image image for IDE hard disk 0\n"
"\n"
"%s\n"
"During 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",
"qemu",
options_help);
exit(exitcode);
}
#define HAS_ARG 0x0001
enum {
#define DEF(option, opt_arg, opt_enum, opt_help) \
opt_enum,
#define DEFHEADING(text)
#include "qemu-options.h"
#undef DEF
#undef DEFHEADING
#undef GEN_DOCS
};
typedef struct QEMUOption {
const char *name;
int flags;
int index;
} QEMUOption;
static const QEMUOption qemu_options[] = {
{ "h", 0, QEMU_OPTION_h },
#define DEF(option, opt_arg, opt_enum, opt_help) \
{ option, opt_arg, opt_enum },
#define DEFHEADING(text)
#include "qemu-options.h"
#undef DEF
#undef DEFHEADING
#undef GEN_DOCS
{ NULL },
};
#ifdef HAS_AUDIO
struct soundhw soundhw[] = {
#ifdef HAS_AUDIO_CHOICE
#if defined(TARGET_I386) || defined(TARGET_MIPS)
{
"pcspk",
"PC speaker",
0,
1,
{ .init_isa = pcspk_audio_init }
},
#endif
#ifdef CONFIG_SB16
{
"sb16",
"Creative Sound Blaster 16",
0,
1,
{ .init_isa = SB16_init }
},
#endif
#ifdef CONFIG_CS4231A
{
"cs4231a",
"CS4231A",
0,
1,
{ .init_isa = cs4231a_init }
},
#endif
#ifdef CONFIG_ADLIB
{
"adlib",
#ifdef HAS_YMF262
"Yamaha YMF262 (OPL3)",
#else
"Yamaha YM3812 (OPL2)",
#endif
0,
1,
{ .init_isa = Adlib_init }
},
#endif
#ifdef CONFIG_GUS
{
"gus",
"Gravis Ultrasound GF1",
0,
1,
{ .init_isa = GUS_init }
},
#endif
#ifdef CONFIG_AC97
{
"ac97",
"Intel 82801AA AC97 Audio",
0,
0,
{ .init_pci = ac97_init }
},
#endif
#ifdef CONFIG_ES1370
{
"es1370",
"ENSONIQ AudioPCI ES1370",
0,
0,
{ .init_pci = es1370_init }
},
#endif
#endif /* HAS_AUDIO_CHOICE */
{ NULL, NULL, 0, 0, { NULL } }
};
static void select_soundhw (const char *optarg)
{
struct soundhw *c;
if (*optarg == '?') {
show_valid_cards:
printf ("Valid sound card names (comma separated):\n");
for (c = soundhw; c->name; ++c) {
printf ("%-11s %s\n", c->name, c->descr);
}
printf ("\n-soundhw all will enable all of the above\n");
exit (*optarg != '?');
}
else {
size_t l;
const char *p;
char *e;
int bad_card = 0;
if (!strcmp (optarg, "all")) {
for (c = soundhw; c->name; ++c) {
c->enabled = 1;
}
return;
}
p = optarg;
while (*p) {
e = strchr (p, ',');
l = !e ? strlen (p) : (size_t) (e - p);
for (c = soundhw; c->name; ++c) {
if (!strncmp (c->name, p, l) && !c->name[l]) {
c->enabled = 1;
break;
}
}
if (!c->name) {
if (l > 80) {
fprintf (stderr,
"Unknown sound card name (too big to show)\n");
}
else {
fprintf (stderr, "Unknown sound card name `%.*s'\n",
(int) l, p);
}
bad_card = 1;
}
p += l + (e != NULL);
}
if (bad_card)
goto show_valid_cards;
}
}
#endif
static void select_vgahw (const char *p)
{
const char *opts;
default_vga = 0;
vga_interface_type = VGA_NONE;
if (strstart(p, "std", &opts)) {
vga_interface_type = VGA_STD;
} else if (strstart(p, "cirrus", &opts)) {
vga_interface_type = VGA_CIRRUS;
} else if (strstart(p, "vmware", &opts)) {
vga_interface_type = VGA_VMWARE;
} else if (strstart(p, "xenfb", &opts)) {
vga_interface_type = VGA_XENFB;
} 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;
}
}
#ifdef TARGET_I386
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_device_opts, arg+7, 0);
if (!opts)
return -1;
} else {
/* create empty opts */
opts = qemu_opts_create(&qemu_device_opts, NULL, 0);
}
qemu_opt_set(opts, "driver", "virtio-balloon-pci");
return 0;
}
return -1;
}
#endif
#ifdef _WIN32
static BOOL WINAPI qemu_ctrl_handler(DWORD type)
{
exit(STATUS_CONTROL_C_EXIT);
return TRUE;
}
#endif
int qemu_uuid_parse(const char *str, uint8_t *uuid)
{
int ret;
if(strlen(str) != 36)
return -1;
ret = sscanf(str, UUID_FMT, &uuid[0], &uuid[1], &uuid[2], &uuid[3],
&uuid[4], &uuid[5], &uuid[6], &uuid[7], &uuid[8], &uuid[9],
&uuid[10], &uuid[11], &uuid[12], &uuid[13], &uuid[14], &uuid[15]);
if(ret != 16)
return -1;
#ifdef TARGET_I386
smbios_add_field(1, offsetof(struct smbios_type_1, uuid), 16, uuid);
#endif
return 0;
}
#ifndef _WIN32
static void termsig_handler(int signal)
{
qemu_system_shutdown_request();
}
static void sigchld_handler(int signal)
{
waitpid(-1, NULL, WNOHANG);
}
static void sighandler_setup(void)
{
struct sigaction act;
memset(&act, 0, sizeof(act));
act.sa_handler = termsig_handler;
sigaction(SIGINT, &act, NULL);
sigaction(SIGHUP, &act, NULL);
sigaction(SIGTERM, &act, NULL);
act.sa_handler = sigchld_handler;
act.sa_flags = SA_NOCLDSTOP;
sigaction(SIGCHLD, &act, NULL);
}
#endif
#ifdef _WIN32
/* Look for support files in the same directory as the executable. */
static char *find_datadir(const char *argv0)
{
char *p;
char buf[MAX_PATH];
DWORD len;
len = GetModuleFileName(NULL, buf, sizeof(buf) - 1);
if (len == 0) {
return NULL;
}
buf[len] = 0;
p = buf + len - 1;
while (p != buf && *p != '\\')
p--;
*p = 0;
if (access(buf, R_OK) == 0) {
return qemu_strdup(buf);
}
return NULL;
}
#else /* !_WIN32 */
/* Find a likely location for support files using the location of the binary.
For installed binaries this will be "$bindir/../share/qemu". When
running from the build tree this will be "$bindir/../pc-bios". */
#define SHARE_SUFFIX "/share/qemu"
#define BUILD_SUFFIX "/pc-bios"
static char *find_datadir(const char *argv0)
{
char *dir;
char *p = NULL;
char *res;
char buf[PATH_MAX];
size_t max_len;
#if defined(__linux__)
{
int len;
len = readlink("/proc/self/exe", buf, sizeof(buf) - 1);
if (len > 0) {
buf[len] = 0;
p = buf;
}
}
#elif defined(__FreeBSD__)
{
int len;
len = readlink("/proc/curproc/file", buf, sizeof(buf) - 1);
if (len > 0) {
buf[len] = 0;
p = buf;
}
}
#endif
/* If we don't have any way of figuring out the actual executable
location then try argv[0]. */
if (!p) {
p = realpath(argv0, buf);
if (!p) {
return NULL;
}
}
dir = dirname(p);
dir = dirname(dir);
max_len = strlen(dir) +
MAX(strlen(SHARE_SUFFIX), strlen(BUILD_SUFFIX)) + 1;
res = qemu_mallocz(max_len);
snprintf(res, max_len, "%s%s", dir, SHARE_SUFFIX);
if (access(res, R_OK)) {
snprintf(res, max_len, "%s%s", dir, BUILD_SUFFIX);
if (access(res, R_OK)) {
qemu_free(res);
res = NULL;
}
}
return res;
}
#undef SHARE_SUFFIX
#undef BUILD_SUFFIX
#endif
char *qemu_find_file(int type, const char *name)
{
int len;
const char *subdir;
char *buf;
/* If name contains path separators then try it as a straight path. */
if ((strchr(name, '/') || strchr(name, '\\'))
&& access(name, R_OK) == 0) {
return qemu_strdup(name);
}
switch (type) {
case QEMU_FILE_TYPE_BIOS:
subdir = "";
break;
case QEMU_FILE_TYPE_KEYMAP:
subdir = "keymaps/";
break;
default:
abort();
}
len = strlen(data_dir) + strlen(name) + strlen(subdir) + 2;
buf = qemu_mallocz(len);
snprintf(buf, len, "%s/%s%s", data_dir, subdir, name);
if (access(buf, R_OK)) {
qemu_free(buf);
return NULL;
}
return buf;
}
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;
return 0;
}
static int chardev_init_func(QemuOpts *opts, void *opaque)
{
CharDriverState *chr;
chr = qemu_chr_open_opts(opts, NULL);
if (!chr)
return -1;
return 0;
}
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, "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 {
if (monitor_device_index) {
snprintf(label, sizeof(label), "monitor%d",
monitor_device_index);
} else {
snprintf(label, sizeof(label), "monitor");
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_mon_opts, label, 1);
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 */
} type;
const char *cmdline;
QTAILQ_ENTRY(device_config) next;
};
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 = qemu_mallocz(sizeof(*conf));
conf->type = type;
conf->cmdline = cmdline;
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;
rc = func(conf->cmdline);
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_open(label, devname, NULL);
if (!serial_hds[index]) {
fprintf(stderr, "qemu: could not open serial device '%s': %s\n",
devname, strerror(errno));
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_open(label, devname, NULL);
if (!parallel_hds[index]) {
fprintf(stderr, "qemu: could not open parallel device '%s': %s\n",
devname, strerror(errno));
return -1;
}
index++;
return 0;
}
static int virtcon_parse(const char *devname)
{
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(&qemu_device_opts, NULL, 0);
qemu_opt_set(bus_opts, "driver", "virtio-serial");
dev_opts = qemu_opts_create(&qemu_device_opts, NULL, 0);
qemu_opt_set(dev_opts, "driver", "virtconsole");
snprintf(label, sizeof(label), "virtcon%d", index);
virtcon_hds[index] = qemu_chr_open(label, devname, NULL);
if (!virtcon_hds[index]) {
fprintf(stderr, "qemu: could not open virtio console '%s': %s\n",
devname, strerror(errno));
return -1;
}
qemu_opt_set(dev_opts, "chardev", label);
index++;
return 0;
}
static int debugcon_parse(const char *devname)
{
QemuOpts *opts;
if (!qemu_chr_open("debugcon", devname, NULL)) {
exit(1);
}
opts = qemu_opts_create(&qemu_device_opts, "debugcon", 1);
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 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;
}
int main(int argc, char **argv, char **envp)
{
const char *gdbstub_dev = NULL;
uint32_t boot_devices_bitmap = 0;
int i;
int snapshot, linux_boot, net_boot;
const char *icount_option = NULL;
const char *initrd_filename;
const char *kernel_filename, *kernel_cmdline;
char boot_devices[33] = "cad"; /* default to HD->floppy->CD-ROM */
DisplayState *ds;
DisplayChangeListener *dcl;
int cyls, heads, secs, translation;
QemuOpts *hda_opts = NULL, *opts;
int optind;
const char *optarg;
const char *loadvm = NULL;
QEMUMachine *machine;
const char *cpu_model;
#ifndef _WIN32
int fds[2];
#endif
int tb_size;
const char *pid_file = NULL;
const char *incoming = NULL;
#ifndef _WIN32
int fd = 0;
struct passwd *pwd = NULL;
const char *chroot_dir = NULL;
const char *run_as = NULL;
#endif
CPUState *env;
int show_vnc_port = 0;
int defconfig = 1;
error_set_progname(argv[0]);
init_clocks();
qemu_cache_utils_init(envp);
QLIST_INIT (&vm_change_state_head);
#ifndef _WIN32
{
struct sigaction act;
sigfillset(&act.sa_mask);
act.sa_flags = 0;
act.sa_handler = SIG_IGN;
sigaction(SIGPIPE, &act, NULL);
}
#else
SetConsoleCtrlHandler(qemu_ctrl_handler, TRUE);
/* Note: cpu_interrupt() is currently not SMP safe, so we force
QEMU to run on a single CPU */
{
HANDLE h;
DWORD mask, smask;
int i;
h = GetCurrentProcess();
if (GetProcessAffinityMask(h, &mask, &smask)) {
for(i = 0; i < 32; i++) {
if (mask & (1 << i))
break;
}
if (i != 32) {
mask = 1 << i;
SetProcessAffinityMask(h, mask);
}
}
}
#endif
module_call_init(MODULE_INIT_MACHINE);
machine = find_default_machine();
cpu_model = NULL;
initrd_filename = NULL;
ram_size = 0;
snapshot = 0;
kernel_filename = NULL;
kernel_cmdline = "";
cyls = heads = secs = 0;
translation = BIOS_ATA_TRANSLATION_AUTO;
for (i = 0; i < MAX_NODES; i++) {
node_mem[i] = 0;
node_cpumask[i] = 0;
}
nb_numa_nodes = 0;
nb_nics = 0;
tb_size = 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=0;
break;
}
}
}
if (defconfig) {
const char *fname;
FILE *fp;
fname = CONFIG_QEMU_CONFDIR "/qemu.conf";
fp = fopen(fname, "r");
if (fp) {
if (qemu_config_parse(fp, fname) != 0) {
exit(1);
}
fclose(fp);
}
fname = CONFIG_QEMU_CONFDIR "/target-" TARGET_ARCH ".conf";
fp = fopen(fname, "r");
if (fp) {
if (qemu_config_parse(fp, fname) != 0) {
exit(1);
}
fclose(fp);
}
}
#if defined(cpudef_setup)
cpudef_setup(); /* parse cpu definitions in target config file */
#endif
/* second pass of option parsing */
optind = 1;
for(;;) {
if (optind >= argc)
break;
if (argv[optind][0] != '-') {
hda_opts = drive_add(argv[optind++], HD_ALIAS, 0);
} else {
const QEMUOption *popt;
popt = lookup_opt(argc, argv, &optarg, &optind);
switch(popt->index) {
case QEMU_OPTION_M:
machine = find_machine(optarg);
if (!machine) {
QEMUMachine *m;
printf("Supported machines are:\n");
for(m = first_machine; m != NULL; m = m->next) {
if (m->alias)
printf("%-10s %s (alias of %s)\n",
m->alias, m->desc, m->name);
printf("%-10s %s%s\n",
m->name, m->desc,
m->is_default ? " (default)" : "");
}
exit(*optarg != '?');
}
break;
case QEMU_OPTION_cpu:
/* hw initialization will check this */
if (*optarg == '?') {
/* XXX: implement xxx_cpu_list for targets that still miss it */
#if defined(cpu_list_id)
cpu_list_id(stdout, &fprintf, optarg);
#elif defined(cpu_list)
cpu_list(stdout, &fprintf); /* deprecated */
#endif
exit(0);
} else {
cpu_model = optarg;
}
break;
case QEMU_OPTION_initrd:
initrd_filename = optarg;
break;
case QEMU_OPTION_hda:
if (cyls == 0)
hda_opts = drive_add(optarg, HD_ALIAS, 0);
else
hda_opts = drive_add(optarg, HD_ALIAS
",cyls=%d,heads=%d,secs=%d%s",
0, cyls, heads, secs,
translation == BIOS_ATA_TRANSLATION_LBA ?
",trans=lba" :
translation == BIOS_ATA_TRANSLATION_NONE ?
",trans=none" : "");
break;
case QEMU_OPTION_hdb:
case QEMU_OPTION_hdc:
case QEMU_OPTION_hdd:
drive_add(optarg, HD_ALIAS, popt->index - QEMU_OPTION_hda);
break;
case QEMU_OPTION_drive:
drive_add(NULL, "%s", optarg);
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(optarg, MTD_ALIAS);
break;
case QEMU_OPTION_sd:
drive_add(optarg, SD_ALIAS);
break;
case QEMU_OPTION_pflash:
drive_add(optarg, PFLASH_ALIAS);
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:
if (nb_numa_nodes >= MAX_NODES) {
fprintf(stderr, "qemu: too many NUMA nodes\n");
exit(1);
}
numa_add(optarg);
break;
case QEMU_OPTION_nographic:
display_type = DT_NOGRAPHIC;
break;
#ifdef CONFIG_CURSES
case QEMU_OPTION_curses:
display_type = DT_CURSES;
break;
#endif
case QEMU_OPTION_portrait:
graphic_rotate = 1;
break;
case QEMU_OPTION_kernel:
kernel_filename = optarg;
break;
case QEMU_OPTION_append:
kernel_cmdline = optarg;
break;
case QEMU_OPTION_cdrom:
drive_add(optarg, CDROM_ALIAS);
break;
case QEMU_OPTION_boot:
{
static const char * const params[] = {
"order", "once", "menu", 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)) {
boot_devices_bitmap = parse_bootdevices(buf);
pstrcpy(boot_devices, sizeof(boot_devices), buf);
}
if (!legacy) {
if (get_param_value(buf, sizeof(buf),
"once", optarg)) {
boot_devices_bitmap |= parse_bootdevices(buf);
standard_boot_devices = qemu_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);
}
}
}
}
break;
case QEMU_OPTION_fda:
case QEMU_OPTION_fdb:
drive_add(optarg, FD_ALIAS, popt->index - QEMU_OPTION_fda);
break;
#ifdef TARGET_I386
case QEMU_OPTION_no_fd_bootchk:
fd_bootchk = 0;
break;
#endif
case QEMU_OPTION_netdev:
if (net_client_parse(&qemu_netdev_opts, optarg) == -1) {
exit(1);
}
break;
case QEMU_OPTION_net:
if (net_client_parse(&qemu_net_opts, optarg) == -1) {
exit(1);
}
break;
#ifdef CONFIG_SLIRP
case QEMU_OPTION_tftp:
legacy_tftp_prefix = optarg;
break;
case QEMU_OPTION_bootp:
legacy_bootp_filename = optarg;
break;
#ifndef _WIN32
case QEMU_OPTION_smb:
if (net_slirp_smb(optarg) < 0)
exit(1);
break;
#endif
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;
#ifdef HAS_AUDIO
case QEMU_OPTION_audio_help:
AUD_help ();
exit (0);
break;
case QEMU_OPTION_soundhw:
select_soundhw (optarg);
break;
#endif
case QEMU_OPTION_h:
help(0);
break;
case QEMU_OPTION_version:
version();
exit(0);
break;
case QEMU_OPTION_m: {
uint64_t value;
char *ptr;
value = strtoul(optarg, &ptr, 10);
switch (*ptr) {
case 0: case 'M': case 'm':
value <<= 20;
break;
case 'G': case 'g':
value <<= 30;
break;
default:
fprintf(stderr, "qemu: invalid ram size: %s\n", optarg);
exit(1);
}
/* On 32-bit hosts, QEMU is limited by virtual address space */
if (value > (2047 << 20) && HOST_LONG_BITS == 32) {
fprintf(stderr, "qemu: at most 2047 MB RAM can be simulated\n");
exit(1);
}
if (value != (uint64_t)(ram_addr_t)value) {
fprintf(stderr, "qemu: ram size too large\n");
exit(1);
}
ram_size = value;
break;
}
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:
{
int mask;
const CPULogItem *item;
mask = cpu_str_to_log_mask(optarg);
if (!mask) {
printf("Log items (comma separated):\n");
for(item = cpu_log_items; item->mask != 0; item++) {
printf("%-10s %s\n", item->name, item->help);
}
exit(1);
}
cpu_set_log(mask);
}
break;
case QEMU_OPTION_s:
gdbstub_dev = "tcp::" DEFAULT_GDBSTUB_PORT;
break;
case QEMU_OPTION_gdb:
gdbstub_dev = optarg;
break;
case QEMU_OPTION_L:
data_dir = 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:
select_vgahw (optarg);
break;
#if defined(TARGET_PPC) || defined(TARGET_SPARC)
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;
#endif
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_mon_opts, optarg, 1);
if (!opts) {
fprintf(stderr, "parse error: %s\n", optarg);
exit(1);
}
default_monitor = 0;
break;
case QEMU_OPTION_chardev:
opts = qemu_opts_parse(&qemu_chardev_opts, optarg, 1);
if (!opts) {
fprintf(stderr, "parse error: %s\n", optarg);
exit(1);
}
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;
#endif
case QEMU_OPTION_pidfile:
pid_file = optarg;
break;
#ifdef TARGET_I386
case QEMU_OPTION_win2k_hack:
win2k_install_hack = 1;
break;
case QEMU_OPTION_rtc_td_hack:
rtc_td_hack = 1;
break;
case QEMU_OPTION_acpitable:
if(acpi_table_add(optarg) < 0) {
fprintf(stderr, "Wrong acpi table provided\n");
exit(1);
}
break;
case QEMU_OPTION_smbios:
if(smbios_entry_add(optarg) < 0) {
fprintf(stderr, "Wrong smbios provided\n");
exit(1);
}
break;
#endif
#ifdef CONFIG_KVM
case QEMU_OPTION_enable_kvm:
kvm_allowed = 1;
break;
#endif
case QEMU_OPTION_usb:
usb_enabled = 1;
break;
case QEMU_OPTION_usbdevice:
usb_enabled = 1;
add_device_config(DEV_USB, optarg);
break;
case QEMU_OPTION_device:
if (!qemu_opts_parse(&qemu_device_opts, 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:
display_type = DT_VNC;
vnc_display = optarg;
break;
#ifdef TARGET_I386
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;
#endif
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;
#ifndef _WIN32
case QEMU_OPTION_daemonize:
daemonize = 1;
break;
#endif
case QEMU_OPTION_option_rom:
if (nb_option_roms >= MAX_OPTION_ROMS) {
fprintf(stderr, "Too many option ROMs\n");
exit(1);
}
option_rom[nb_option_roms] = optarg;
nb_option_roms++;
break;
#if defined(TARGET_ARM) || defined(TARGET_M68K)
case QEMU_OPTION_semihosting:
semihosting_enabled = 1;
break;
#endif
case QEMU_OPTION_name:
qemu_name = qemu_strdup(optarg);
{
char *p = strchr(qemu_name, ',');
if (p != NULL) {
*p++ = 0;
if (strncmp(p, "process=", 8)) {
fprintf(stderr, "Unknown subargument %s to -name", p);
exit(1);
}
p += 8;
set_proc_name(p);
}
}
break;
#if defined(TARGET_SPARC) || defined(TARGET_PPC)
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;
#endif
#ifdef TARGET_ARM
case QEMU_OPTION_old_param:
old_param = 1;
break;
#endif
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_rtc_opts, optarg, 0);
if (!opts) {
fprintf(stderr, "parse error: %s\n", optarg);
exit(1);
}
configure_rtc(opts);
break;
case QEMU_OPTION_tb_size:
tb_size = strtol(optarg, NULL, 0);
if (tb_size < 0)
tb_size = 0;
break;
case QEMU_OPTION_icount:
icount_option = optarg;
break;
case QEMU_OPTION_incoming:
incoming = optarg;
break;
case QEMU_OPTION_nodefaults:
default_serial = 0;
default_parallel = 0;
default_virtcon = 0;
default_monitor = 0;
default_vga = 0;
default_net = 0;
default_floppy = 0;
default_cdrom = 0;
default_sdcard = 0;
break;
#ifndef _WIN32
case QEMU_OPTION_chroot:
chroot_dir = optarg;
break;
case QEMU_OPTION_runas:
run_as = optarg;
break;
#endif
#ifdef CONFIG_XEN
case QEMU_OPTION_xen_domid:
xen_domid = atoi(optarg);
break;
case QEMU_OPTION_xen_create:
xen_mode = XEN_CREATE;
break;
case QEMU_OPTION_xen_attach:
xen_mode = XEN_ATTACH;
break;
#endif
case QEMU_OPTION_readconfig:
{
FILE *fp;
fp = fopen(optarg, "r");
if (fp == NULL) {
fprintf(stderr, "open %s: %s\n", optarg, strerror(errno));
exit(1);
}
if (qemu_config_parse(fp, optarg) != 0) {
exit(1);
}
fclose(fp);
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;
}
}
}
}
loc_set_none();
/* If no data_dir is specified then try to find it relative to the
executable path. */
if (!data_dir) {
data_dir = find_datadir(argv[0]);
}
/* If all else fails use the install patch specified when building. */
if (!data_dir) {
data_dir = CONFIG_QEMU_SHAREDIR;
}
/*
* 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);
}
qemu_opts_foreach(&qemu_device_opts, default_driver_check, NULL, 0);
qemu_opts_foreach(&qemu_global_opts, 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->no_vga) {
default_vga = 0;
}
if (machine->no_floppy) {
default_floppy = 0;
}
if (machine->no_cdrom) {
default_cdrom = 0;
}
if (machine->no_sdcard) {
default_sdcard = 0;
}
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_serial)
add_device_config(DEV_SERIAL, "stdio");
if (default_virtcon)
add_device_config(DEV_VIRTCON, "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_vga)
vga_interface_type = VGA_CIRRUS;
if (qemu_opts_foreach(&qemu_chardev_opts, chardev_init_func, NULL, 1) != 0)
exit(1);
#ifndef _WIN32
if (daemonize) {
pid_t pid;
if (pipe(fds) == -1)
exit(1);
pid = fork();
if (pid > 0) {
uint8_t status;
ssize_t len;
close(fds[1]);
again:
len = read(fds[0], &status, 1);
if (len == -1 && (errno == EINTR))
goto again;
if (len != 1)
exit(1);
else if (status == 1) {
fprintf(stderr, "Could not acquire pidfile: %s\n", strerror(errno));
exit(1);
} else
exit(0);
} else if (pid < 0)
exit(1);
close(fds[0]);
qemu_set_cloexec(fds[1]);
setsid();
pid = fork();
if (pid > 0)
exit(0);
else if (pid < 0)
exit(1);
umask(027);
signal(SIGTSTP, SIG_IGN);
signal(SIGTTOU, SIG_IGN);
signal(SIGTTIN, SIG_IGN);
}
#endif
if (pid_file && qemu_create_pidfile(pid_file) != 0) {
#ifndef _WIN32
if (daemonize) {
uint8_t status = 1;
if (write(fds[1], &status, 1) != 1) {
perror("daemonize. Writing to pipe\n");
}
} else
#endif
fprintf(stderr, "Could not acquire pid file: %s\n", strerror(errno));
exit(1);
}
if (kvm_enabled()) {
int ret;
ret = kvm_init(smp_cpus);
if (ret < 0) {
fprintf(stderr, "failed to initialize KVM\n");
exit(1);
}
}
if (qemu_init_main_loop()) {
fprintf(stderr, "qemu_init_main_loop failed\n");
exit(1);
}
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);
}
#ifndef _WIN32
/* Win32 doesn't support line-buffering and requires size >= 2 */
setvbuf(stdout, NULL, _IOLBF, 0);
#endif
if (init_timer_alarm() < 0) {
fprintf(stderr, "could not initialize alarm timer\n");
exit(1);
}
configure_icount(icount_option);
#ifdef _WIN32
socket_init();
#endif
if (net_init_clients() < 0) {
exit(1);
}
net_boot = (boot_devices_bitmap >> ('n' - 'a')) & 0xF;
net_set_boot_mask(net_boot);
/* init the bluetooth world */
if (foreach_device_config(DEV_BT, bt_parse))
exit(1);
/* init the memory */
if (ram_size == 0)
ram_size = DEFAULT_RAM_SIZE * 1024 * 1024;
/* init the dynamic translator */
cpu_exec_init_all(tb_size * 1024 * 1024);
bdrv_init_with_whitelist();
blk_mig_init();
if (default_cdrom) {
/* we always create the cdrom drive, even if no disk is there */
drive_add(NULL, CDROM_ALIAS);
}
if (default_floppy) {
/* we always create at least one floppy */
drive_add(NULL, FD_ALIAS, 0);
}
if (default_sdcard) {
/* we always create one sd slot, even if no card is in it */
drive_add(NULL, SD_ALIAS);
}
/* open the virtual block devices */
if (snapshot)
qemu_opts_foreach(&qemu_drive_opts, drive_enable_snapshot, NULL, 0);
if (qemu_opts_foreach(&qemu_drive_opts, drive_init_func, machine, 1) != 0)
exit(1);
register_savevm_live("ram", 0, 3, NULL, ram_save_live, NULL,
ram_load, NULL);
if (nb_numa_nodes > 0) {
int i;
if (nb_numa_nodes > smp_cpus) {
nb_numa_nodes = smp_cpus;
}
/* 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 (node_cpumask[i] != 0)
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 < smp_cpus; i++) {
node_cpumask[i % nb_numa_nodes] |= 1 << i;
}
}
}
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_DEBUGCON, debugcon_parse) < 0)
exit(1);
module_call_init(MODULE_INIT_DEVICE);
if (qemu_opts_foreach(&qemu_device_opts, device_help_func, NULL, 0) != 0)
exit(0);
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();
machine->init(ram_size, boot_devices,
kernel_filename, kernel_cmdline, initrd_filename, cpu_model);
cpu_synchronize_all_post_init();
#ifndef _WIN32
/* must be after terminal init, SDL library changes signal handlers */
sighandler_setup();
#endif
for (env = first_cpu; env != NULL; env = env->next_cpu) {
for (i = 0; i < nb_numa_nodes; i++) {
if (node_cpumask[i] & (1 << env->cpu_index)) {
env->numa_node = i;
}
}
}
current_machine = machine;
/* init USB devices */
if (usb_enabled) {
if (foreach_device_config(DEV_USB, usb_parse) < 0)
exit(1);
}
/* init generic devices */
if (qemu_opts_foreach(&qemu_device_opts, device_init_func, NULL, 1) != 0)
exit(1);
net_check_clients();
/* just use the first displaystate for the moment */
ds = get_displaystate();
if (display_type == DT_DEFAULT) {
#if defined(CONFIG_SDL) || defined(CONFIG_COCOA)
display_type = DT_SDL;
#else
display_type = DT_VNC;
vnc_display = "localhost:0,to=99";
show_vnc_port = 1;
#endif
}
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
case DT_VNC:
vnc_display_init(ds);
if (vnc_display_open(ds, vnc_display) < 0)
exit(1);
if (show_vnc_port) {
printf("VNC server running on `%s'\n", vnc_display_local_addr(ds));
}
break;
default:
break;
}
dpy_resize(ds);
dcl = ds->listeners;
while (dcl != NULL) {
if (dcl->dpy_refresh != NULL) {
ds->gui_timer = qemu_new_timer(rt_clock, gui_update, ds);
qemu_mod_timer(ds->gui_timer, qemu_get_clock(rt_clock));
}
dcl = dcl->next;
}
if (display_type == DT_NOGRAPHIC || display_type == DT_VNC) {
nographic_timer = qemu_new_timer(rt_clock, nographic_update, NULL);
qemu_mod_timer(nographic_timer, qemu_get_clock(rt_clock));
}
text_consoles_set_display(ds);
if (qemu_opts_foreach(&qemu_mon_opts, mon_init_func, NULL, 1) != 0)
exit(1);
if (gdbstub_dev && gdbserver_start(gdbstub_dev) < 0) {
fprintf(stderr, "qemu: could not open gdbserver on device '%s'\n",
gdbstub_dev);
exit(1);
}
qdev_machine_creation_done();
if (rom_load_all() != 0) {
fprintf(stderr, "rom loading failed\n");
exit(1);
}
qemu_system_reset();
if (loadvm) {
if (load_vmstate(loadvm) < 0) {
autostart = 0;
}
}
if (incoming) {
qemu_start_incoming_migration(incoming);
} else if (autostart) {
vm_start();
}
#ifndef _WIN32
if (daemonize) {
uint8_t status = 0;
ssize_t len;
again1:
len = write(fds[1], &status, 1);
if (len == -1 && (errno == EINTR))
goto again1;
if (len != 1)
exit(1);
if (chdir("/")) {
perror("not able to chdir to /");
exit(1);
}
TFR(fd = qemu_open("/dev/null", O_RDWR));
if (fd == -1)
exit(1);
}
if (run_as) {
pwd = getpwnam(run_as);
if (!pwd) {
fprintf(stderr, "User \"%s\" doesn't exist\n", run_as);
exit(1);
}
}
if (chroot_dir) {
if (chroot(chroot_dir) < 0) {
fprintf(stderr, "chroot failed\n");
exit(1);
}
if (chdir("/")) {
perror("not able to chdir to /");
exit(1);
}
}
if (run_as) {
if (setgid(pwd->pw_gid) < 0) {
fprintf(stderr, "Failed to setgid(%d)\n", pwd->pw_gid);
exit(1);
}
if (setuid(pwd->pw_uid) < 0) {
fprintf(stderr, "Failed to setuid(%d)\n", pwd->pw_uid);
exit(1);
}
if (setuid(0) != -1) {
fprintf(stderr, "Dropping privileges failed\n");
exit(1);
}
}
if (daemonize) {
dup2(fd, 0);
dup2(fd, 1);
dup2(fd, 2);
close(fd);
}
#endif
main_loop();
quit_timers();
net_cleanup();
return 0;
}
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