提交 468cc7cf 编写于 作者: P Paolo Bonzini

icount: use cpu_get_icount() directly

This will help later when we will have to place these calls in
a critical section, and thus call a version of cpu_get_icount()
that does not take the lock.
Reviewed-by: NAlex Bligh <alex@alex.org.uk>
Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com>
上级 add40e97
......@@ -236,12 +236,15 @@ static void icount_adjust(void)
int64_t cur_icount;
int64_t delta;
static int64_t last_delta;
/* If the VM is not running, then do nothing. */
if (!runstate_is_running()) {
return;
}
cur_time = cpu_get_clock();
cur_icount = qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL);
cur_icount = cpu_get_icount();
delta = cur_icount - cur_time;
/* FIXME: This is a very crude algorithm, somewhat prone to oscillation. */
if (delta > 0
......@@ -297,7 +300,7 @@ static void icount_warp_rt(void *opaque)
* far ahead of real time.
*/
int64_t cur_time = cpu_get_clock();
int64_t cur_icount = qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL);
int64_t cur_icount = cpu_get_icount();
int64_t delta = cur_time - cur_icount;
qemu_icount_bias += MIN(warp_delta, delta);
}
......
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