diff options
Diffstat (limited to 'vl.c')
| -rw-r--r-- | vl.c | 70 |
1 files changed, 39 insertions, 31 deletions
@@ -186,7 +186,6 @@ enum vga_retrace_method vga_retrace_method = VGA_RETRACE_DUMB; static DisplayState *display_state; DisplayType display_type = DT_DEFAULT; const char* keyboard_layout = NULL; -static int64_t ticks_per_sec; ram_addr_t ram_size; int nb_nics; NICInfo nd_table[MAX_NICS]; @@ -609,10 +608,15 @@ static int64_t cpu_get_icount(void) /***********************************************************/ /* guest cycle counter */ -static int64_t cpu_ticks_prev; -static int64_t cpu_ticks_offset; -static int64_t cpu_clock_offset; -static int cpu_ticks_enabled; +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 ticks_per_sec; +} TimersState; + +TimersState timers_state; /* return the host CPU cycle counter and handle stop/restart */ int64_t cpu_get_ticks(void) @@ -620,18 +624,18 @@ int64_t cpu_get_ticks(void) if (use_icount) { return cpu_get_icount(); } - if (!cpu_ticks_enabled) { - return cpu_ticks_offset; + if (!timers_state.cpu_ticks_enabled) { + return timers_state.cpu_ticks_offset; } else { int64_t ticks; ticks = cpu_get_real_ticks(); - if (cpu_ticks_prev > ticks) { + if (timers_state.cpu_ticks_prev > ticks) { /* Note: non increasing ticks may happen if the host uses software suspend */ - cpu_ticks_offset += cpu_ticks_prev - ticks; + timers_state.cpu_ticks_offset += timers_state.cpu_ticks_prev - ticks; } - cpu_ticks_prev = ticks; - return ticks + cpu_ticks_offset; + timers_state.cpu_ticks_prev = ticks; + return ticks + timers_state.cpu_ticks_offset; } } @@ -639,21 +643,21 @@ int64_t cpu_get_ticks(void) static int64_t cpu_get_clock(void) { int64_t ti; - if (!cpu_ticks_enabled) { - return cpu_clock_offset; + if (!timers_state.cpu_ticks_enabled) { + return timers_state.cpu_clock_offset; } else { ti = get_clock(); - return ti + cpu_clock_offset; + return ti + timers_state.cpu_clock_offset; } } /* enable cpu_get_ticks() */ void cpu_enable_ticks(void) { - if (!cpu_ticks_enabled) { - cpu_ticks_offset -= cpu_get_real_ticks(); - cpu_clock_offset -= get_clock(); - cpu_ticks_enabled = 1; + 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; } } @@ -661,10 +665,10 @@ void cpu_enable_ticks(void) cpu_get_ticks() after that. */ void cpu_disable_ticks(void) { - if (cpu_ticks_enabled) { - cpu_ticks_offset = cpu_get_ticks(); - cpu_clock_offset = cpu_get_clock(); - cpu_ticks_enabled = 0; + 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; } } @@ -1034,13 +1038,13 @@ int64_t qemu_get_clock(QEMUClock *clock) int64_t get_ticks_per_sec(void) { - return ticks_per_sec; + return timers_state.ticks_per_sec; } static void init_timers(void) { init_get_clock(); - ticks_per_sec = QEMU_TIMER_BASE; + timers_state.ticks_per_sec = QEMU_TIMER_BASE; rt_clock = qemu_new_clock(QEMU_TIMER_REALTIME); vm_clock = qemu_new_clock(QEMU_TIMER_VIRTUAL); } @@ -1072,19 +1076,23 @@ void qemu_get_timer(QEMUFile *f, QEMUTimer *ts) static void timer_save(QEMUFile *f, void *opaque) { - qemu_put_be64(f, cpu_ticks_offset); - qemu_put_be64(f, ticks_per_sec); - qemu_put_be64(f, cpu_clock_offset); + struct TimersState *s = opaque; + + qemu_put_be64(f, s->cpu_ticks_offset); + qemu_put_be64(f, s->ticks_per_sec); + qemu_put_be64(f, s->cpu_clock_offset); } static int timer_load(QEMUFile *f, void *opaque, int version_id) { + struct TimersState *s = opaque; + if (version_id != 1 && version_id != 2) return -EINVAL; - cpu_ticks_offset=qemu_get_be64(f); - ticks_per_sec=qemu_get_be64(f); + s->cpu_ticks_offset = qemu_get_be64(f); + s->ticks_per_sec = qemu_get_be64(f); if (version_id == 2) { - cpu_clock_offset=qemu_get_be64(f); + s->cpu_clock_offset = qemu_get_be64(f); } return 0; } @@ -5618,7 +5626,7 @@ int main(int argc, char **argv, char **envp) if (qemu_opts_foreach(&qemu_drive_opts, drive_init_func, machine, 1) != 0) exit(1); - register_savevm("timer", 0, 2, timer_save, timer_load, NULL); + register_savevm("timer", 0, 2, timer_save, timer_load, &timers_state); register_savevm_live("ram", 0, 3, ram_save_live, NULL, ram_load, NULL); /* Maintain compatibility with multiple stdio monitors */ |