#ifdef __linux__
#include <pty.h>
#include <malloc.h>
-#include <linux/rtc.h>
#include <sys/prctl.h>
-/* For the benefit of older linux systems which don't supply it,
- we use a local copy of hpet.h. */
-/* #include <linux/hpet.h> */
-#include "hpet.h"
-
#include <linux/ppdev.h>
#include <linux/parport.h>
#endif
#include <libvdeplug.h>
#endif
+#if defined(CONFIG_UUID)
+#include <uuid/uuid.h>
+#endif
+
#ifdef _WIN32
#include <windows.h>
-#include <mmsystem.h>
#endif
#ifdef CONFIG_SDL
#include "qemu-option.h"
#include "qemu-config.h"
#include "qemu-objects.h"
+#include "notify.h"
#include "disas.h"
static CPUState *cur_cpu;
static CPUState *next_cpu;
-static int timer_alarm_pending = 1;
-/* Conversion factor from emulated instructions to virtual clock ticks. */
-static int icount_time_shift;
-/* Arbitrarily pick 1MIPS as the minimum allowable speed. */
-#define MAX_ICOUNT_SHIFT 10
-/* Compensate for varying guest execution speed. */
-static int64_t qemu_icount_bias;
-static QEMUTimer *icount_rt_timer;
-static QEMUTimer *icount_vm_timer;
static QEMUTimer *nographic_timer;
uint8_t qemu_uuid[16];
static int default_floppy = 1;
static int default_cdrom = 1;
static int default_sdcard = 1;
+static int default_qmp = 1;
static struct {
const char *driver;
/* 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;
-}
-
-static int64_t get_clock_realtime(void)
-{
- struct timeval tv;
-
- gettimeofday(&tv, NULL);
- return tv.tv_sec * 1000000000LL + (tv.tv_usec * 1000);
-}
-
-#ifdef WIN32
-
-static int64_t clock_freq;
-
-static void init_get_clock(void)
-{
- LARGE_INTEGER freq;
- int ret;
- ret = QueryPerformanceFrequency(&freq);
- if (ret == 0) {
- fprintf(stderr, "Could not calibrate ticks\n");
- exit(1);
- }
- clock_freq = freq.QuadPart;
-}
-
-static int64_t get_clock(void)
-{
- LARGE_INTEGER ti;
- QueryPerformanceCounter(&ti);
- return muldiv64(ti.QuadPart, get_ticks_per_sec(), clock_freq);
-}
-
-#else
-
-static int use_rt_clock;
-
-static void init_get_clock(void)
-{
- use_rt_clock = 0;
-#if defined(__linux__) || (defined(__FreeBSD__) && __FreeBSD_version >= 500000) \
- || defined(__DragonFly__) || defined(__FreeBSD_kernel__)
- {
- struct timespec ts;
- if (clock_gettime(CLOCK_MONOTONIC, &ts) == 0) {
- use_rt_clock = 1;
- }
- }
-#endif
-}
-
-static int64_t get_clock(void)
-{
-#if defined(__linux__) || (defined(__FreeBSD__) && __FreeBSD_version >= 500000) \
- || defined(__DragonFly__) || defined(__FreeBSD_kernel__)
- if (use_rt_clock) {
- struct timespec ts;
- clock_gettime(CLOCK_MONOTONIC, &ts);
- return ts.tv_sec * 1000000000LL + ts.tv_nsec;
- } else
-#endif
- {
- /* XXX: using gettimeofday leads to problems if the date
- changes, so it should be avoided. */
- return get_clock_realtime();
- }
-}
-#endif
-
-/* Return the virtual CPU time, based on the instruction counter. */
-static int64_t cpu_get_icount(void)
-{
- int64_t icount;
- CPUState *env = cpu_single_env;;
- icount = qemu_icount;
- if (env) {
- if (!can_do_io(env))
- fprintf(stderr, "Bad clock read\n");
- icount -= (env->icount_decr.u16.low + env->icount_extra);
- }
- return qemu_icount_bias + (icount << icount_time_shift);
-}
-
-/***********************************************************/
-/* guest cycle counter */
-
-typedef struct TimersState {
- int64_t cpu_ticks_prev;
- int64_t cpu_ticks_offset;
- int64_t cpu_clock_offset;
- int32_t cpu_ticks_enabled;
- int64_t dummy;
-} TimersState;
-
-TimersState timers_state;
-
-/* return the host CPU cycle counter and handle stop/restart */
-int64_t cpu_get_ticks(void)
-{
- if (use_icount) {
- return cpu_get_icount();
- }
- if (!timers_state.cpu_ticks_enabled) {
- return timers_state.cpu_ticks_offset;
- } else {
- int64_t ticks;
- ticks = cpu_get_real_ticks();
- if (timers_state.cpu_ticks_prev > ticks) {
- /* Note: non increasing ticks may happen if the host uses
- software suspend */
- timers_state.cpu_ticks_offset += timers_state.cpu_ticks_prev - ticks;
- }
- timers_state.cpu_ticks_prev = ticks;
- return ticks + timers_state.cpu_ticks_offset;
- }
-}
-
-/* return the host CPU monotonic timer and handle stop/restart */
-static int64_t cpu_get_clock(void)
-{
- int64_t ti;
- if (!timers_state.cpu_ticks_enabled) {
- return timers_state.cpu_clock_offset;
- } else {
- ti = get_clock();
- return ti + timers_state.cpu_clock_offset;
- }
-}
-
-/* enable cpu_get_ticks() */
-void cpu_enable_ticks(void)
-{
- if (!timers_state.cpu_ticks_enabled) {
- timers_state.cpu_ticks_offset -= cpu_get_real_ticks();
- timers_state.cpu_clock_offset -= get_clock();
- timers_state.cpu_ticks_enabled = 1;
- }
-}
-
-/* disable cpu_get_ticks() : the clock is stopped. You must not call
- cpu_get_ticks() after that. */
-void cpu_disable_ticks(void)
-{
- if (timers_state.cpu_ticks_enabled) {
- timers_state.cpu_ticks_offset = cpu_get_ticks();
- timers_state.cpu_clock_offset = cpu_get_clock();
- timers_state.cpu_ticks_enabled = 0;
- }
-}
-
-/***********************************************************/
-/* timers */
-
-#define QEMU_CLOCK_REALTIME 0
-#define QEMU_CLOCK_VIRTUAL 1
-#define QEMU_CLOCK_HOST 2
-
-struct QEMUClock {
- int type;
- /* XXX: add frequency */
-};
-
-struct QEMUTimer {
- QEMUClock *clock;
- int64_t expire_time;
- QEMUTimerCB *cb;
- void *opaque;
- struct QEMUTimer *next;
-};
-
-struct qemu_alarm_timer {
- char const *name;
- unsigned int flags;
-
- int (*start)(struct qemu_alarm_timer *t);
- void (*stop)(struct qemu_alarm_timer *t);
- void (*rearm)(struct qemu_alarm_timer *t);
- void *priv;
-};
-
-#define ALARM_FLAG_DYNTICKS 0x1
-#define ALARM_FLAG_EXPIRED 0x2
-
-static inline int alarm_has_dynticks(struct qemu_alarm_timer *t)
-{
- return t && (t->flags & ALARM_FLAG_DYNTICKS);
-}
-
-static void qemu_rearm_alarm_timer(struct qemu_alarm_timer *t)
-{
- if (!alarm_has_dynticks(t))
- return;
-
- t->rearm(t);
-}
-
-/* TODO: MIN_TIMER_REARM_US should be optimized */
-#define MIN_TIMER_REARM_US 250
-
-static struct qemu_alarm_timer *alarm_timer;
-
-#ifdef _WIN32
-
-struct qemu_alarm_win32 {
- MMRESULT timerId;
- unsigned int period;
-} alarm_win32_data = {0, -1};
-
-static int win32_start_timer(struct qemu_alarm_timer *t);
-static void win32_stop_timer(struct qemu_alarm_timer *t);
-static void win32_rearm_timer(struct qemu_alarm_timer *t);
-
-#else
-
-static int unix_start_timer(struct qemu_alarm_timer *t);
-static void unix_stop_timer(struct qemu_alarm_timer *t);
-
-#ifdef __linux__
-
-static int dynticks_start_timer(struct qemu_alarm_timer *t);
-static void dynticks_stop_timer(struct qemu_alarm_timer *t);
-static void dynticks_rearm_timer(struct qemu_alarm_timer *t);
-
-static int hpet_start_timer(struct qemu_alarm_timer *t);
-static void hpet_stop_timer(struct qemu_alarm_timer *t);
-
-static int rtc_start_timer(struct qemu_alarm_timer *t);
-static void rtc_stop_timer(struct qemu_alarm_timer *t);
-
-#endif /* __linux__ */
-
-#endif /* _WIN32 */
-
-/* Correlation between real and virtual time is always going to be
- fairly approximate, so ignore small variation.
- When the guest is idle real and virtual time will be aligned in
- the IO wait loop. */
-#define ICOUNT_WOBBLE (get_ticks_per_sec() / 10)
-
-static void icount_adjust(void)
-{
- int64_t cur_time;
- int64_t cur_icount;
- int64_t delta;
- static int64_t last_delta;
- /* If the VM is not running, then do nothing. */
- if (!vm_running)
- return;
-
- cur_time = cpu_get_clock();
- cur_icount = qemu_get_clock(vm_clock);
- delta = cur_icount - cur_time;
- /* FIXME: This is a very crude algorithm, somewhat prone to oscillation. */
- if (delta > 0
- && last_delta + ICOUNT_WOBBLE < delta * 2
- && icount_time_shift > 0) {
- /* The guest is getting too far ahead. Slow time down. */
- icount_time_shift--;
- }
- if (delta < 0
- && last_delta - ICOUNT_WOBBLE > delta * 2
- && icount_time_shift < MAX_ICOUNT_SHIFT) {
- /* The guest is getting too far behind. Speed time up. */
- icount_time_shift++;
- }
- last_delta = delta;
- qemu_icount_bias = cur_icount - (qemu_icount << icount_time_shift);
-}
-
-static void icount_adjust_rt(void * opaque)
-{
- qemu_mod_timer(icount_rt_timer,
- qemu_get_clock(rt_clock) + 1000);
- icount_adjust();
-}
-
-static void icount_adjust_vm(void * opaque)
-{
- qemu_mod_timer(icount_vm_timer,
- qemu_get_clock(vm_clock) + get_ticks_per_sec() / 10);
- icount_adjust();
-}
-
-static void init_icount_adjust(void)
-{
- /* Have both realtime and virtual time triggers for speed adjustment.
- The realtime trigger catches emulated time passing too slowly,
- the virtual time trigger catches emulated time passing too fast.
- Realtime triggers occur even when idle, so use them less frequently
- than VM triggers. */
- icount_rt_timer = qemu_new_timer(rt_clock, icount_adjust_rt, NULL);
- qemu_mod_timer(icount_rt_timer,
- qemu_get_clock(rt_clock) + 1000);
- icount_vm_timer = qemu_new_timer(vm_clock, icount_adjust_vm, NULL);
- qemu_mod_timer(icount_vm_timer,
- qemu_get_clock(vm_clock) + get_ticks_per_sec() / 10);
-}
-
-static struct qemu_alarm_timer alarm_timers[] = {
-#ifndef _WIN32
-#ifdef __linux__
- {"dynticks", ALARM_FLAG_DYNTICKS, dynticks_start_timer,
- dynticks_stop_timer, dynticks_rearm_timer, NULL},
- /* HPET - if available - is preferred */
- {"hpet", 0, hpet_start_timer, hpet_stop_timer, NULL, NULL},
- /* ...otherwise try RTC */
- {"rtc", 0, rtc_start_timer, rtc_stop_timer, NULL, NULL},
-#endif
- {"unix", 0, unix_start_timer, unix_stop_timer, NULL, NULL},
-#else
- {"dynticks", ALARM_FLAG_DYNTICKS, win32_start_timer,
- win32_stop_timer, win32_rearm_timer, &alarm_win32_data},
- {"win32", 0, win32_start_timer,
- win32_stop_timer, NULL, &alarm_win32_data},
-#endif
- {NULL, }
-};
-
-static void show_available_alarms(void)
-{
- int i;
-
- printf("Available alarm timers, in order of precedence:\n");
- for (i = 0; alarm_timers[i].name; i++)
- printf("%s\n", alarm_timers[i].name);
-}
-
-static void configure_alarms(char const *opt)
-{
- int i;
- int cur = 0;
- int count = ARRAY_SIZE(alarm_timers) - 1;
- char *arg;
- char *name;
- struct qemu_alarm_timer tmp;
-
- if (!strcmp(opt, "?")) {
- show_available_alarms();
- exit(0);
- }
-
- arg = qemu_strdup(opt);
-
- /* Reorder the array */
- name = strtok(arg, ",");
- while (name) {
- for (i = 0; i < count && alarm_timers[i].name; i++) {
- if (!strcmp(alarm_timers[i].name, name))
- break;
- }
-
- if (i == count) {
- fprintf(stderr, "Unknown clock %s\n", name);
- goto next;
- }
-
- if (i < cur)
- /* Ignore */
- goto next;
-
- /* Swap */
- tmp = alarm_timers[i];
- alarm_timers[i] = alarm_timers[cur];
- alarm_timers[cur] = tmp;
-
- cur++;
-next:
- name = strtok(NULL, ",");
- }
-
- qemu_free(arg);
-
- if (cur) {
- /* Disable remaining timers */
- for (i = cur; i < count; i++)
- alarm_timers[i].name = NULL;
- } else {
- show_available_alarms();
- exit(1);
- }
-}
-
-#define QEMU_NUM_CLOCKS 3
-
-QEMUClock *rt_clock;
-QEMUClock *vm_clock;
-QEMUClock *host_clock;
-
-static QEMUTimer *active_timers[QEMU_NUM_CLOCKS];
-
-static QEMUClock *qemu_new_clock(int type)
-{
- QEMUClock *clock;
- clock = qemu_mallocz(sizeof(QEMUClock));
- clock->type = type;
- return clock;
-}
-
-QEMUTimer *qemu_new_timer(QEMUClock *clock, QEMUTimerCB *cb, void *opaque)
-{
- QEMUTimer *ts;
-
- ts = qemu_mallocz(sizeof(QEMUTimer));
- ts->clock = clock;
- ts->cb = cb;
- ts->opaque = opaque;
- return ts;
-}
-
-void qemu_free_timer(QEMUTimer *ts)
-{
- qemu_free(ts);
-}
-
-/* stop a timer, but do not dealloc it */
-void qemu_del_timer(QEMUTimer *ts)
-{
- QEMUTimer **pt, *t;
-
- /* NOTE: this code must be signal safe because
- qemu_timer_expired() can be called from a signal. */
- pt = &active_timers[ts->clock->type];
- for(;;) {
- t = *pt;
- if (!t)
- break;
- if (t == ts) {
- *pt = t->next;
- break;
- }
- pt = &t->next;
- }
-}
-
-/* modify the current timer so that it will be fired when current_time
- >= expire_time. The corresponding callback will be called. */
-void qemu_mod_timer(QEMUTimer *ts, int64_t expire_time)
-{
- QEMUTimer **pt, *t;
-
- qemu_del_timer(ts);
-
- /* add the timer in the sorted list */
- /* NOTE: this code must be signal safe because
- qemu_timer_expired() can be called from a signal. */
- pt = &active_timers[ts->clock->type];
- for(;;) {
- t = *pt;
- if (!t)
- break;
- if (t->expire_time > expire_time)
- break;
- pt = &t->next;
- }
- ts->expire_time = expire_time;
- ts->next = *pt;
- *pt = ts;
-
- /* Rearm if necessary */
- if (pt == &active_timers[ts->clock->type]) {
- if ((alarm_timer->flags & ALARM_FLAG_EXPIRED) == 0) {
- qemu_rearm_alarm_timer(alarm_timer);
- }
- /* Interrupt execution to force deadline recalculation. */
- if (use_icount)
- qemu_notify_event();
- }
-}
-
-int qemu_timer_pending(QEMUTimer *ts)
-{
- QEMUTimer *t;
- for(t = active_timers[ts->clock->type]; t != NULL; t = t->next) {
- if (t == ts)
- return 1;
- }
- return 0;
-}
-
-int qemu_timer_expired(QEMUTimer *timer_head, int64_t current_time)
-{
- if (!timer_head)
- return 0;
- return (timer_head->expire_time <= current_time);
-}
-
-static void qemu_run_timers(QEMUTimer **ptimer_head, int64_t current_time)
-{
- QEMUTimer *ts;
-
- for(;;) {
- ts = *ptimer_head;
- if (!ts || ts->expire_time > current_time)
- break;
- /* remove timer from the list before calling the callback */
- *ptimer_head = ts->next;
- ts->next = NULL;
-
- /* run the callback (the timer list can be modified) */
- ts->cb(ts->opaque);
- }
-}
-
-int64_t qemu_get_clock(QEMUClock *clock)
-{
- switch(clock->type) {
- case QEMU_CLOCK_REALTIME:
- return get_clock() / 1000000;
- default:
- case QEMU_CLOCK_VIRTUAL:
- if (use_icount) {
- return cpu_get_icount();
- } else {
- return cpu_get_clock();
- }
- case QEMU_CLOCK_HOST:
- return get_clock_realtime();
- }
-}
-
-int64_t qemu_get_clock_ns(QEMUClock *clock)
-{
- switch(clock->type) {
- case QEMU_CLOCK_REALTIME:
- return get_clock();
- default:
- case QEMU_CLOCK_VIRTUAL:
- if (use_icount) {
- return cpu_get_icount();
- } else {
- return cpu_get_clock();
- }
- case QEMU_CLOCK_HOST:
- return get_clock_realtime();
- }
-}
-
-static void init_clocks(void)
-{
- init_get_clock();
- rt_clock = qemu_new_clock(QEMU_CLOCK_REALTIME);
- vm_clock = qemu_new_clock(QEMU_CLOCK_VIRTUAL);
- host_clock = qemu_new_clock(QEMU_CLOCK_HOST);
-
- rtc_clock = host_clock;
-}
-
-/* save a timer */
-void qemu_put_timer(QEMUFile *f, QEMUTimer *ts)
-{
- uint64_t expire_time;
-
- if (qemu_timer_pending(ts)) {
- expire_time = ts->expire_time;
- } else {
- expire_time = -1;
- }
- qemu_put_be64(f, expire_time);
-}
-
-void qemu_get_timer(QEMUFile *f, QEMUTimer *ts)
-{
- uint64_t expire_time;
-
- expire_time = qemu_get_be64(f);
- if (expire_time != -1) {
- qemu_mod_timer(ts, expire_time);
- } else {
- qemu_del_timer(ts);
- }
-}
-
-static const VMStateDescription vmstate_timers = {
- .name = "timer",
- .version_id = 2,
- .minimum_version_id = 1,
- .minimum_version_id_old = 1,
- .fields = (VMStateField []) {
- VMSTATE_INT64(cpu_ticks_offset, TimersState),
- VMSTATE_INT64(dummy, TimersState),
- VMSTATE_INT64_V(cpu_clock_offset, TimersState, 2),
- VMSTATE_END_OF_LIST()
- }
-};
-
-static void qemu_event_increment(void);
-
-#ifdef _WIN32
-static void CALLBACK host_alarm_handler(UINT uTimerID, UINT uMsg,
- DWORD_PTR dwUser, DWORD_PTR dw1,
- DWORD_PTR dw2)
-#else
-static void host_alarm_handler(int host_signum)
-#endif
-{
-#if 0
-#define DISP_FREQ 1000
- {
- static int64_t delta_min = INT64_MAX;
- static int64_t delta_max, delta_cum, last_clock, delta, ti;
- static int count;
- ti = qemu_get_clock(vm_clock);
- if (last_clock != 0) {
- delta = ti - last_clock;
- if (delta < delta_min)
- delta_min = delta;
- if (delta > delta_max)
- delta_max = delta;
- delta_cum += delta;
- if (++count == DISP_FREQ) {
- printf("timer: min=%" PRId64 " us max=%" PRId64 " us avg=%" PRId64 " us avg_freq=%0.3f Hz\n",
- muldiv64(delta_min, 1000000, get_ticks_per_sec()),
- muldiv64(delta_max, 1000000, get_ticks_per_sec()),
- muldiv64(delta_cum, 1000000 / DISP_FREQ, get_ticks_per_sec()),
- (double)get_ticks_per_sec() / ((double)delta_cum / DISP_FREQ));
- count = 0;
- delta_min = INT64_MAX;
- delta_max = 0;
- delta_cum = 0;
- }
- }
- last_clock = ti;
- }
-#endif
- if (alarm_has_dynticks(alarm_timer) ||
- (!use_icount &&
- qemu_timer_expired(active_timers[QEMU_CLOCK_VIRTUAL],
- qemu_get_clock(vm_clock))) ||
- qemu_timer_expired(active_timers[QEMU_CLOCK_REALTIME],
- qemu_get_clock(rt_clock)) ||
- qemu_timer_expired(active_timers[QEMU_CLOCK_HOST],
- qemu_get_clock(host_clock))) {
- qemu_event_increment();
- if (alarm_timer) alarm_timer->flags |= ALARM_FLAG_EXPIRED;
-
-#ifndef CONFIG_IOTHREAD
- if (next_cpu) {
- /* stop the currently executing cpu because a timer occured */
- cpu_exit(next_cpu);
- }
-#endif
- timer_alarm_pending = 1;
- qemu_notify_event();
- }
-}
-
-static int64_t qemu_next_deadline(void)
-{
- /* To avoid problems with overflow limit this to 2^32. */
- int64_t delta = INT32_MAX;
-
- if (active_timers[QEMU_CLOCK_VIRTUAL]) {
- delta = active_timers[QEMU_CLOCK_VIRTUAL]->expire_time -
- qemu_get_clock(vm_clock);
- }
- if (active_timers[QEMU_CLOCK_HOST]) {
- int64_t hdelta = active_timers[QEMU_CLOCK_HOST]->expire_time -
- qemu_get_clock(host_clock);
- if (hdelta < delta)
- delta = hdelta;
- }
-
- if (delta < 0)
- delta = 0;
-
- return delta;
-}
-
-#if defined(__linux__)
-static uint64_t qemu_next_deadline_dyntick(void)
-{
- int64_t delta;
- int64_t rtdelta;
-
- if (use_icount)
- delta = INT32_MAX;
- else
- delta = (qemu_next_deadline() + 999) / 1000;
-
- if (active_timers[QEMU_CLOCK_REALTIME]) {
- rtdelta = (active_timers[QEMU_CLOCK_REALTIME]->expire_time -
- qemu_get_clock(rt_clock))*1000;
- if (rtdelta < delta)
- delta = rtdelta;
- }
-
- if (delta < MIN_TIMER_REARM_US)
- delta = MIN_TIMER_REARM_US;
-
- return delta;
-}
-#endif
-
-#ifndef _WIN32
-
-/* Sets a specific flag */
-static int fcntl_setfl(int fd, int flag)
-{
- int flags;
-
- flags = fcntl(fd, F_GETFL);
- if (flags == -1)
- return -errno;
-
- if (fcntl(fd, F_SETFL, flags | flag) == -1)
- return -errno;
-
- return 0;
-}
-
-#if defined(__linux__)
-
-#define RTC_FREQ 1024
-
-static void enable_sigio_timer(int fd)
-{
- struct sigaction act;
-
- /* timer signal */
- sigfillset(&act.sa_mask);
- act.sa_flags = 0;
- act.sa_handler = host_alarm_handler;
-
- sigaction(SIGIO, &act, NULL);
- fcntl_setfl(fd, O_ASYNC);
- fcntl(fd, F_SETOWN, getpid());
-}
-
-static int hpet_start_timer(struct qemu_alarm_timer *t)
-{
- struct hpet_info info;
- int r, fd;
-
- fd = qemu_open("/dev/hpet", O_RDONLY);
- if (fd < 0)
- return -1;
-
- /* Set frequency */
- r = ioctl(fd, HPET_IRQFREQ, RTC_FREQ);
- if (r < 0) {
- fprintf(stderr, "Could not configure '/dev/hpet' to have a 1024Hz timer. This is not a fatal\n"
- "error, but for better emulation accuracy type:\n"
- "'echo 1024 > /proc/sys/dev/hpet/max-user-freq' as root.\n");
- goto fail;
- }
-
- /* Check capabilities */
- r = ioctl(fd, HPET_INFO, &info);
- if (r < 0)
- goto fail;
-
- /* Enable periodic mode */
- r = ioctl(fd, HPET_EPI, 0);
- if (info.hi_flags && (r < 0))
- goto fail;
-
- /* Enable interrupt */
- r = ioctl(fd, HPET_IE_ON, 0);
- if (r < 0)
- goto fail;
-
- enable_sigio_timer(fd);
- t->priv = (void *)(long)fd;
-
- return 0;
-fail:
- close(fd);
- return -1;
-}
-
-static void hpet_stop_timer(struct qemu_alarm_timer *t)
-{
- int fd = (long)t->priv;
-
- close(fd);
-}
-
-static int rtc_start_timer(struct qemu_alarm_timer *t)
-{
- int rtc_fd;
- unsigned long current_rtc_freq = 0;
-
- TFR(rtc_fd = qemu_open("/dev/rtc", O_RDONLY));
- if (rtc_fd < 0)
- return -1;
- ioctl(rtc_fd, RTC_IRQP_READ, ¤t_rtc_freq);
- if (current_rtc_freq != RTC_FREQ &&
- ioctl(rtc_fd, RTC_IRQP_SET, RTC_FREQ) < 0) {
- fprintf(stderr, "Could not configure '/dev/rtc' to have a 1024 Hz timer. This is not a fatal\n"
- "error, but for better emulation accuracy either use a 2.6 host Linux kernel or\n"
- "type 'echo 1024 > /proc/sys/dev/rtc/max-user-freq' as root.\n");
- goto fail;
- }
- if (ioctl(rtc_fd, RTC_PIE_ON, 0) < 0) {
- fail:
- close(rtc_fd);
- return -1;
- }
-
- enable_sigio_timer(rtc_fd);
-
- t->priv = (void *)(long)rtc_fd;
-
- return 0;
-}
-
-static void rtc_stop_timer(struct qemu_alarm_timer *t)
-{
- int rtc_fd = (long)t->priv;
-
- close(rtc_fd);
-}
-
-static int dynticks_start_timer(struct qemu_alarm_timer *t)
-{
- struct sigevent ev;
- timer_t host_timer;
- struct sigaction act;
-
- sigfillset(&act.sa_mask);
- act.sa_flags = 0;
- act.sa_handler = host_alarm_handler;
-
- sigaction(SIGALRM, &act, NULL);
-
- /*
- * Initialize ev struct to 0 to avoid valgrind complaining
- * about uninitialized data in timer_create call
- */
- memset(&ev, 0, sizeof(ev));
- ev.sigev_value.sival_int = 0;
- ev.sigev_notify = SIGEV_SIGNAL;
- ev.sigev_signo = SIGALRM;
-
- if (timer_create(CLOCK_REALTIME, &ev, &host_timer)) {
- perror("timer_create");
-
- /* disable dynticks */
- fprintf(stderr, "Dynamic Ticks disabled\n");
-
- return -1;
- }
-
- t->priv = (void *)(long)host_timer;
-
- return 0;
-}
-
-static void dynticks_stop_timer(struct qemu_alarm_timer *t)
-{
- timer_t host_timer = (timer_t)(long)t->priv;
-
- timer_delete(host_timer);
-}
-
-static void dynticks_rearm_timer(struct qemu_alarm_timer *t)
-{
- timer_t host_timer = (timer_t)(long)t->priv;
- struct itimerspec timeout;
- int64_t nearest_delta_us = INT64_MAX;
- int64_t current_us;
-
- if (!active_timers[QEMU_CLOCK_REALTIME] &&
- !active_timers[QEMU_CLOCK_VIRTUAL] &&
- !active_timers[QEMU_CLOCK_HOST])
- return;
-
- nearest_delta_us = qemu_next_deadline_dyntick();
-
- /* check whether a timer is already running */
- if (timer_gettime(host_timer, &timeout)) {
- perror("gettime");
- fprintf(stderr, "Internal timer error: aborting\n");
- exit(1);
- }
- current_us = timeout.it_value.tv_sec * 1000000 + timeout.it_value.tv_nsec/1000;
- if (current_us && current_us <= nearest_delta_us)
- return;
-
- timeout.it_interval.tv_sec = 0;
- timeout.it_interval.tv_nsec = 0; /* 0 for one-shot timer */
- timeout.it_value.tv_sec = nearest_delta_us / 1000000;
- timeout.it_value.tv_nsec = (nearest_delta_us % 1000000) * 1000;
- if (timer_settime(host_timer, 0 /* RELATIVE */, &timeout, NULL)) {
- perror("settime");
- fprintf(stderr, "Internal timer error: aborting\n");
- exit(1);
- }
-}
-
-#endif /* defined(__linux__) */
-
-static int unix_start_timer(struct qemu_alarm_timer *t)
-{
- struct sigaction act;
- struct itimerval itv;
- int err;
-
- /* timer signal */
- sigfillset(&act.sa_mask);
- act.sa_flags = 0;
- act.sa_handler = host_alarm_handler;
-
- sigaction(SIGALRM, &act, NULL);
-
- itv.it_interval.tv_sec = 0;
- /* for i386 kernel 2.6 to get 1 ms */
- itv.it_interval.tv_usec = 999;
- itv.it_value.tv_sec = 0;
- itv.it_value.tv_usec = 10 * 1000;
-
- err = setitimer(ITIMER_REAL, &itv, NULL);
- if (err)
- return -1;
-
- return 0;
-}
-
-static void unix_stop_timer(struct qemu_alarm_timer *t)
-{
- struct itimerval itv;
-
- memset(&itv, 0, sizeof(itv));
- setitimer(ITIMER_REAL, &itv, NULL);
-}
-
-#endif /* !defined(_WIN32) */
-
-
-#ifdef _WIN32
-
-static int win32_start_timer(struct qemu_alarm_timer *t)
-{
- TIMECAPS tc;
- struct qemu_alarm_win32 *data = t->priv;
- UINT flags;
-
- memset(&tc, 0, sizeof(tc));
- timeGetDevCaps(&tc, sizeof(tc));
-
- if (data->period < tc.wPeriodMin)
- data->period = tc.wPeriodMin;
-
- timeBeginPeriod(data->period);
-
- flags = TIME_CALLBACK_FUNCTION;
- if (alarm_has_dynticks(t))
- flags |= TIME_ONESHOT;
- else
- flags |= TIME_PERIODIC;
-
- data->timerId = timeSetEvent(1, // interval (ms)
- data->period, // resolution
- host_alarm_handler, // function
- (DWORD)t, // parameter
- flags);
-
- if (!data->timerId) {
- fprintf(stderr, "Failed to initialize win32 alarm timer: %ld\n",
- GetLastError());
- timeEndPeriod(data->period);
- return -1;
- }
-
- return 0;
+#endif
}
+
+/***************/
+/* ballooning */
-static void win32_stop_timer(struct qemu_alarm_timer *t)
-{
- struct qemu_alarm_win32 *data = t->priv;
+static QEMUBalloonEvent *qemu_balloon_event;
+void *qemu_balloon_event_opaque;
- timeKillEvent(data->timerId);
- timeEndPeriod(data->period);
+void qemu_add_balloon_handler(QEMUBalloonEvent *func, void *opaque)
+{
+ qemu_balloon_event = func;
+ qemu_balloon_event_opaque = opaque;
}
-static void win32_rearm_timer(struct qemu_alarm_timer *t)
+int qemu_balloon(ram_addr_t target, MonitorCompletion cb, void *opaque)
{
- struct qemu_alarm_win32 *data = t->priv;
-
- if (!active_timers[QEMU_CLOCK_REALTIME] &&
- !active_timers[QEMU_CLOCK_VIRTUAL] &&
- !active_timers[QEMU_CLOCK_HOST])
- return;
-
- timeKillEvent(data->timerId);
-
- data->timerId = timeSetEvent(1,
- data->period,
- host_alarm_handler,
- (DWORD)t,
- TIME_ONESHOT | TIME_PERIODIC);
-
- if (!data->timerId) {
- fprintf(stderr, "Failed to re-arm win32 alarm timer %ld\n",
- GetLastError());
-
- timeEndPeriod(data->period);
- exit(1);
+ if (qemu_balloon_event) {
+ qemu_balloon_event(qemu_balloon_event_opaque, target, cb, opaque);
+ return 1;
+ } else {
+ return 0;
}
}
-#endif /* _WIN32 */
-
-static int init_timer_alarm(void)
+int qemu_balloon_status(MonitorCompletion cb, void *opaque)
{
- struct qemu_alarm_timer *t = NULL;
- int i, err = -1;
-
- for (i = 0; alarm_timers[i].name; i++) {
- t = &alarm_timers[i];
-
- err = t->start(t);
- if (!err)
- break;
- }
-
- if (err) {
- err = -ENOENT;
- goto fail;
+ if (qemu_balloon_event) {
+ qemu_balloon_event(qemu_balloon_event_opaque, 0, cb, opaque);
+ return 1;
+ } else {
+ return 0;
}
+}
- alarm_timer = t;
-
- return 0;
-fail:
- return err;
-}
+/***********************************************************/
+/* real time host monotonic timer */
-static void quit_timers(void)
+/* compute with 96 bit intermediate result: (a*b)/c */
+uint64_t muldiv64(uint64_t a, uint32_t b, uint32_t c)
{
- alarm_timer->stop(alarm_timer);
- alarm_timer = NULL;
+ 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;
}
/***********************************************************/
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;
}
#ifdef _WIN32
-static void socket_cleanup(void)
+static void socket_cleanup(Notifier *obj)
{
WSACleanup();
}
{
WSADATA Data;
int ret, err;
+ static Notifier notifier = { .notify = socket_cleanup };
ret = WSAStartup(MAKEWORD(2,2), &Data);
if (ret != 0) {
fprintf(stderr, "WSAStartup: %d\n", err);
return -1;
}
- atexit(socket_cleanup);
+ exit_notifier_add(¬ifier);
return 0;
}
#endif
+/*********************/
+/* Exit notifiers */
+/*********************/
+
+static NotifierList exit_notifiers = NOTIFIER_LIST_INITIALIZER(exit_notifiers);
+
+void exit_notifier_add(Notifier *notifier)
+{
+ notifier_list_add(&exit_notifiers, notifier);
+}
+
+void exit_notifier_remove(Notifier *notifier)
+{
+ notifier_list_remove(&exit_notifiers, notifier);
+}
+
+static void exit_notifier_notify(void)
+{
+ notifier_list_notify(&exit_notifiers);
+}
+
+static void exit_notifier_init(void)
+{
+ atexit(exit_notifier_notify);
+}
+
/***********************************************************/
/* Bluetooth support */
static int nb_hcis;
vsnprintf(optstr, sizeof(optstr), fmt, ap);
va_end(ap);
- opts = qemu_opts_parse(&qemu_drive_opts, optstr, NULL);
+ opts = qemu_opts_parse(&qemu_drive_opts, optstr, 0);
if (!opts) {
fprintf(stderr, "%s: huh? duplicate? (%s)\n",
__FUNCTION__, optstr);
{
const char *devname = qdict_get_str(qdict, "devname");
if (usb_device_add(devname, 1) < 0) {
- qemu_error("could not add USB device '%s'\n", devname);
+ error_report("could not add USB device '%s'", devname);
}
}
{
const char *devname = qdict_get_str(qdict, "devname");
if (usb_device_del(devname) < 0) {
- qemu_error("could not delete USB device '%s'\n", devname);
+ error_report("could not delete USB device '%s'", devname);
}
}
typedef struct IOHandlerRecord {
int fd;
- IOCanRWHandler *fd_read_poll;
+ IOCanReadHandler *fd_read_poll;
IOHandler *fd_read;
IOHandler *fd_write;
int deleted;
void *opaque;
/* temporary data */
struct pollfd *ufd;
- struct IOHandlerRecord *next;
+ QLIST_ENTRY(IOHandlerRecord) next;
} IOHandlerRecord;
-static IOHandlerRecord *first_io_handler;
+static QLIST_HEAD(, IOHandlerRecord) io_handlers =
+ QLIST_HEAD_INITIALIZER(io_handlers);
+
/* 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,
+ IOCanReadHandler *fd_read_poll,
IOHandler *fd_read,
IOHandler *fd_write,
void *opaque)
{
- IOHandlerRecord **pioh, *ioh;
+ IOHandlerRecord *ioh;
if (!fd_read && !fd_write) {
- pioh = &first_io_handler;
- for(;;) {
- ioh = *pioh;
- if (ioh == NULL)
- break;
+ QLIST_FOREACH(ioh, &io_handlers, next) {
if (ioh->fd == fd) {
ioh->deleted = 1;
break;
}
- pioh = &ioh->next;
}
} else {
- for(ioh = first_io_handler; ioh != NULL; ioh = ioh->next) {
+ QLIST_FOREACH(ioh, &io_handlers, next) {
if (ioh->fd == fd)
goto found;
}
ioh = qemu_mallocz(sizeof(IOHandlerRecord));
- ioh->next = first_io_handler;
- first_io_handler = ioh;
+ QLIST_INSERT_HEAD(&io_handlers, ioh, next);
found:
ioh->fd = fd;
ioh->fd_read_poll = fd_read_poll;
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;
cpu_enable_ticks();
vm_running = 1;
vm_state_notify(1, 0);
- qemu_rearm_alarm_timer(alarm_timer);
resume_all_vcpus();
}
}
vm_running = 0;
pause_all_vcpus();
vm_state_notify(0, reason);
+ monitor_protocol_event(QEVENT_STOP, NULL);
}
}
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)
qemu_notify_event();
}
-#ifdef CONFIG_IOTHREAD
-static void qemu_system_vmstop_request(int reason)
+static int cpu_can_run(CPUState *env)
{
- vmstop_requested = reason;
- qemu_notify_event();
+ 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;
}
-#endif
#ifndef _WIN32
static int io_thread_fd = -1;
}
#endif
-static int cpu_can_run(CPUState *env)
-{
- if (env->stop)
- return 0;
- if (env->stopped)
- return 0;
- if (!vm_running)
- return 0;
- return 1;
-}
-
#ifndef CONFIG_IOTHREAD
static int qemu_init_main_loop(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) {}
static void tcg_block_io_signals(void);
static void kvm_block_io_signals(CPUState *env);
static void unblock_io_signals(void);
-static int tcg_has_work(void);
-static int cpu_has_work(CPUState *env);
static int qemu_init_main_loop(void)
{
return NULL;
}
-static void tcg_cpu_exec(void);
+static bool tcg_cpu_exec(void);
static void *tcg_cpu_thread_fn(void *arg)
{
qemu_event_increment();
}
+static void qemu_system_vmstop_request(int reason)
+{
+ vmstop_requested = reason;
+ qemu_notify_event();
+}
+
void vm_stop(int reason)
{
QemuThread me;
}
#endif
-void main_loop_wait(int timeout)
+void main_loop_wait(int nonblocking)
{
IOHandlerRecord *ioh;
fd_set rfds, wfds, xfds;
int ret, nfds;
struct timeval tv;
+ int timeout;
- qemu_bh_update_timeout(&timeout);
+ if (nonblocking)
+ timeout = 0;
+ else {
+ timeout = qemu_calculate_timeout();
+ qemu_bh_update_timeout(&timeout);
+ }
host_main_loop_wait(&timeout);
FD_ZERO(&rfds);
FD_ZERO(&wfds);
FD_ZERO(&xfds);
- for(ioh = first_io_handler; ioh != NULL; ioh = ioh->next) {
+ QLIST_FOREACH(ioh, &io_handlers, next) {
if (ioh->deleted)
continue;
if (ioh->fd_read &&
ret = select(nfds + 1, &rfds, &wfds, &xfds, &tv);
qemu_mutex_lock_iothread();
if (ret > 0) {
- IOHandlerRecord **pioh;
+ IOHandlerRecord *pioh;
- for(ioh = first_io_handler; ioh != NULL; ioh = ioh->next) {
- if (!ioh->deleted && ioh->fd_read && FD_ISSET(ioh->fd, &rfds)) {
+ QLIST_FOREACH_SAFE(ioh, &io_handlers, next, pioh) {
+ if (ioh->deleted) {
+ QLIST_REMOVE(ioh, next);
+ qemu_free(ioh);
+ continue;
+ }
+ if (ioh->fd_read && FD_ISSET(ioh->fd, &rfds)) {
ioh->fd_read(ioh->opaque);
}
- if (!ioh->deleted && ioh->fd_write && FD_ISSET(ioh->fd, &wfds)) {
+ if (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));
- /* rearm timer, if not periodic */
- if (alarm_timer->flags & ALARM_FLAG_EXPIRED) {
- alarm_timer->flags &= ~ALARM_FLAG_EXPIRED;
- qemu_rearm_alarm_timer(alarm_timer);
- }
-
- /* vm time timers */
- if (vm_running) {
- if (!cur_cpu || likely(!(cur_cpu->singlestep_enabled & SSTEP_NOTIMER)))
- qemu_run_timers(&active_timers[QEMU_CLOCK_VIRTUAL],
- qemu_get_clock(vm_clock));
- }
-
- /* real time timers */
- qemu_run_timers(&active_timers[QEMU_CLOCK_REALTIME],
- qemu_get_clock(rt_clock));
-
- qemu_run_timers(&active_timers[QEMU_CLOCK_HOST],
- qemu_get_clock(host_clock));
+ qemu_run_all_timers();
/* Check bottom-halves last in case any of the earlier events triggered
them. */
qemu_icount -= (env->icount_decr.u16.low + env->icount_extra);
env->icount_decr.u16.low = 0;
env->icount_extra = 0;
- count = qemu_next_deadline();
- count = (count + (1 << icount_time_shift) - 1)
- >> icount_time_shift;
+ count = qemu_icount_round (qemu_next_deadline());
qemu_icount += count;
decr = (count > 0xffff) ? 0xffff : count;
count -= decr;
return ret;
}
-static void tcg_cpu_exec(void)
+static bool tcg_cpu_exec(void)
{
int ret = 0;
for (; next_cpu != NULL; next_cpu = next_cpu->next_cpu) {
CPUState *env = cur_cpu = next_cpu;
- if (timer_alarm_pending) {
- timer_alarm_pending = 0;
+ 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;
}
}
-}
-
-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;
-}
-
-static int qemu_calculate_timeout(void)
-{
-#ifndef CONFIG_IOTHREAD
- int timeout;
-
- if (!vm_running)
- timeout = 5000;
- else if (tcg_has_work())
- timeout = 0;
- else if (!use_icount)
- timeout = 5000;
- else {
- /* XXX: use timeout computed from timers */
- int64_t add;
- int64_t delta;
- /* Advance virtual time to the next event. */
- if (use_icount == 1) {
- /* When not using an adaptive execution frequency
- we tend to get badly out of sync with real time,
- so just delay for a reasonable amount of time. */
- delta = 0;
- } else {
- delta = cpu_get_icount() - cpu_get_clock();
- }
- if (delta > 0) {
- /* If virtual time is ahead of real time then just
- wait for IO. */
- timeout = (delta / 1000000) + 1;
- } else {
- /* Wait for either IO to occur or the next
- timer event. */
- add = qemu_next_deadline();
- /* We advance the timer before checking for IO.
- Limit the amount we advance so that early IO
- activity won't get the guest too far ahead. */
- if (add > 10000000)
- add = 10000000;
- delta += add;
- add = (add + (1 << icount_time_shift) - 1)
- >> icount_time_shift;
- qemu_icount += add;
- timeout = delta / 1000000;
- if (timeout < 0)
- timeout = 0;
- }
- }
-
- return timeout;
-#else /* CONFIG_IOTHREAD */
- return 1000;
-#endif
+ return tcg_has_work();
}
static int vm_can_run(void)
for (;;) {
do {
+ bool nonblocking = false;
#ifdef CONFIG_PROFILER
int64_t ti;
#endif
#ifndef CONFIG_IOTHREAD
- tcg_cpu_exec();
+ nonblocking = tcg_cpu_exec();
#endif
#ifdef CONFIG_PROFILER
ti = profile_getclock();
#endif
- main_loop_wait(qemu_calculate_timeout());
+ main_loop_wait(nonblocking);
#ifdef CONFIG_PROFILER
dev_time += profile_getclock() - ti;
#endif
} while (vm_can_run());
if (qemu_debug_requested()) {
- monitor_protocol_event(QEVENT_DEBUG, NULL);
vm_stop(EXCP_DEBUG);
}
if (qemu_shutdown_requested()) {
break;
}
if (qemu_reset_requested()) {
- monitor_protocol_event(QEVENT_RESET, NULL);
pause_all_vcpus();
qemu_system_reset();
resume_all_vcpus();
qemu_irq_raise(qemu_system_powerdown);
}
if ((r = qemu_vmstop_requested())) {
- monitor_protocol_event(QEVENT_STOP, NULL);
vm_stop(r);
}
}
if (!strncmp(arg, "virtio", 6)) {
if (arg[6] == ',') {
/* have params -> parse them */
- opts = qemu_opts_parse(&qemu_device_opts, arg+7, NULL);
+ opts = qemu_opts_parse(&qemu_device_opts, arg+7, 0);
if (!opts)
return -1;
} else {
char *r = argv[optind];
const char *optarg;
+ loc_set_cmdline(argv, optind, 1);
optind++;
/* Treat --foo the same as -foo. */
if (r[1] == '-')
popt = qemu_options;
for(;;) {
if (!popt->name) {
- fprintf(stderr, "%s: invalid option -- '%s'\n",
- argv[0], r);
+ error_report("invalid option");
exit(1);
}
if (!strcmp(popt->name, r + 1))
}
if (popt->flags & HAS_ARG) {
if (optind >= argc) {
- fprintf(stderr, "%s: option '%s' requires an argument\n",
- argv[0], r);
+ error_report("requires an argument");
exit(1);
}
optarg = argv[optind++];
+ loc_set_cmdline(argv, optind - 2, 2);
} else {
optarg = NULL;
}
return popt;
}
+static void qmp_add_default(void)
+{
+ char buffer[4096];
+ const char *home;
+ static uint8_t null_uuid[16];
+ uint8_t uuid[16];
+ int ret;
+
+ home = getenv("HOME");
+ if (!home) {
+ return;
+ }
+
+ if (memcmp(qemu_uuid, null_uuid, sizeof(null_uuid)) == 0) {
+#if defined(CONFIG_UUID)
+ uuid_generate(uuid);
+#else
+ return;
+#endif
+ } else {
+ memcpy(uuid, qemu_uuid, sizeof(qemu_uuid));
+ }
+
+ snprintf(buffer, sizeof(buffer), "%s/.qemu", home);
+#ifdef __MINGW32__
+ ret = mkdir(buffer);
+#else
+ ret = mkdir(buffer, 0755);
+#endif
+ if (ret == -1 && errno != EEXIST) {
+ fprintf(stderr, "could not open default QMP port\n");
+ return;
+ }
+
+ snprintf(buffer, sizeof(buffer), "%s/.qemu/qmp", home);
+#ifdef __MINGW32__
+ ret = mkdir(buffer);
+#else
+ ret = mkdir(buffer, 0755);
+#endif
+ if (ret == -1 && errno != EEXIST) {
+ fprintf(stderr, "could not open default QMP port\n");
+ return;
+ }
+
+ snprintf(buffer, sizeof(buffer),
+ "unix:%s/.qemu/qmp/" UUID_FMT ".sock,server,nowait",
+ home,
+ 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]);
+
+ monitor_parse(buffer, "control");
+}
+
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 */
int show_vnc_port = 0;
int defconfig = 1;
+ error_set_progname(argv[0]);
+
+ exit_notifier_init();
+
init_clocks();
- qemu_errors_to_file(stderr);
qemu_cache_utils_init(envp);
QLIST_INIT (&vm_change_state_head);
}
if (defconfig) {
+ const char *fname;
FILE *fp;
- fp = fopen(CONFIG_QEMU_CONFDIR "/qemu.conf", "r");
+
+ fname = CONFIG_QEMU_CONFDIR "/qemu.conf";
+ fp = fopen(fname, "r");
if (fp) {
- if (qemu_config_parse(fp) != 0) {
+ if (qemu_config_parse(fp, fname) != 0) {
exit(1);
}
fclose(fp);
}
- fp = fopen(CONFIG_QEMU_CONFDIR "/target-" TARGET_ARCH ".conf", "r");
+ fname = CONFIG_QEMU_CONFDIR "/target-" TARGET_ARCH ".conf";
+ fp = fopen(fname, "r");
if (fp) {
- if (qemu_config_parse(fp) != 0) {
+ if (qemu_config_parse(fp, fname) != 0) {
exit(1);
}
fclose(fp);
break;
case QEMU_OPTION_qmp:
monitor_parse(optarg, "control");
- default_monitor = 0;
+ default_qmp = 0;
break;
case QEMU_OPTION_mon:
- opts = qemu_opts_parse(&qemu_mon_opts, optarg, "chardev");
+ opts = qemu_opts_parse(&qemu_mon_opts, optarg, 1);
if (!opts) {
fprintf(stderr, "parse error: %s\n", optarg);
exit(1);
+ } else {
+ const char *mode;
+ mode = qemu_opt_get(opts, "mode");
+ if (mode == NULL || strcmp(mode, "readline") == 0) {
+ default_monitor = 0;
+ } else if (strcmp(mode, "control") == 0) {
+ default_qmp = 0;
+ }
}
- default_monitor = 0;
break;
case QEMU_OPTION_chardev:
- opts = qemu_opts_parse(&qemu_chardev_opts, optarg, "backend");
+ opts = qemu_opts_parse(&qemu_chardev_opts, optarg, 1);
if (!opts) {
fprintf(stderr, "parse error: %s\n", optarg);
exit(1);
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) {
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);
add_device_config(DEV_USB, optarg);
break;
case QEMU_OPTION_device:
- if (!qemu_opts_parse(&qemu_device_opts, optarg, "driver")) {
+ if (!qemu_opts_parse(&qemu_device_opts, optarg, 1)) {
exit(1);
}
break;
configure_rtc_date_offset(optarg, 1);
break;
case QEMU_OPTION_rtc:
- opts = qemu_opts_parse(&qemu_rtc_opts, optarg, NULL);
+ opts = qemu_opts_parse(&qemu_rtc_opts, optarg, 0);
if (!opts) {
fprintf(stderr, "parse error: %s\n", optarg);
exit(1);
tb_size = 0;
break;
case QEMU_OPTION_icount:
- use_icount = 1;
- if (strcmp(optarg, "auto") == 0) {
- icount_time_shift = -1;
- } else {
- icount_time_shift = strtol(optarg, NULL, 0);
- }
+ icount_option = optarg;
break;
case QEMU_OPTION_incoming:
incoming = optarg;
default_parallel = 0;
default_virtcon = 0;
default_monitor = 0;
+ default_qmp = 0;
default_vga = 0;
default_net = 0;
default_floppy = 0;
fprintf(stderr, "open %s: %s\n", optarg, strerror(errno));
exit(1);
}
- if (qemu_config_parse(fp) != 0) {
+ if (qemu_config_parse(fp, optarg) != 0) {
exit(1);
}
fclose(fp);
}
}
}
+ loc_set_none();
/* If no data_dir is specified then try to find it relative to the
executable path. */
if (default_virtcon)
add_device_config(DEV_VIRTCON, "vc:80Cx24C");
}
+ if (default_qmp) {
+ qmp_add_default();
+ }
if (default_vga)
vga_interface_type = VGA_CIRRUS;
fprintf(stderr, "could not initialize alarm timer\n");
exit(1);
}
- if (use_icount && icount_time_shift < 0) {
- use_icount = 2;
- /* 125MIPS seems a reasonable initial guess at the guest speed.
- It will be corrected fairly quickly anyway. */
- icount_time_shift = 3;
- init_icount_adjust();
- }
+ configure_icount(icount_option);
#ifdef _WIN32
socket_init();
if (qemu_opts_foreach(&qemu_drive_opts, drive_init_func, machine, 1) != 0)
exit(1);
- vmstate_register(0, &vmstate_timers ,&timers_state);
register_savevm_live("ram", 0, 3, NULL, ram_save_live, NULL,
ram_load, NULL);
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 */
qemu_system_reset();
if (loadvm) {
- if (load_vmstate(cur_mon, loadvm) < 0) {
+ if (load_vmstate(loadvm) < 0) {
autostart = 0;
}
}
projects / qemu.git / blobdiff