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sysemu: generalise qtest_warp_clock as qemu_clock_advance_virtual_time

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Move the key functionality of moving time forward into the clock
sub-system itself. This will allow us to plumb in time control into
plugins.

Signed-off-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20240620152220.2192768-7-alex.bennee@linaro.org>
This commit is contained in:
Alex Bennée 2024-06-20 16:22:14 +01:00
parent e83e386200
commit ffbc394946
3 changed files with 44 additions and 22 deletions
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26
util/qemu-timer.c
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@ -645,6 +645,11 @@ int64_t qemu_clock_get_ns(QEMUClockType type)
}
}
static void qemu_virtual_clock_set_ns(int64_t time)
{
return cpus_set_virtual_clock(time);
}
void init_clocks(QEMUTimerListNotifyCB *notify_cb)
{
QEMUClockType type;
@ -675,3 +680,24 @@ bool qemu_clock_run_all_timers(void)
return progress;
}
int64_t qemu_clock_advance_virtual_time(int64_t dest)
{
int64_t clock = qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL);
AioContext *aio_context;
aio_context = qemu_get_aio_context();
while (clock < dest) {
int64_t deadline = qemu_clock_deadline_ns_all(QEMU_CLOCK_VIRTUAL,
QEMU_TIMER_ATTR_ALL);
int64_t warp = qemu_soonest_timeout(dest - clock, deadline);
qemu_virtual_clock_set_ns(qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL) + warp);
qemu_clock_run_timers(QEMU_CLOCK_VIRTUAL);
timerlist_run_timers(aio_context->tlg.tl[QEMU_CLOCK_VIRTUAL]);
clock = qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL);
}
qemu_clock_notify(QEMU_CLOCK_VIRTUAL);
return clock;
}