aboutsummaryrefslogtreecommitdiff
path: root/util
diff options
context:
space:
mode:
authorPavel Dovgalyuk <Pavel.Dovgaluk@ispras.ru>2018-09-12 11:20:02 +0300
committerPaolo Bonzini <pbonzini@redhat.com>2018-10-02 19:08:58 +0200
commit87f4fe7653baf55b5c2f2753fe6003f473c07342 (patch)
tree1bfc1d1f1dfe334f259941eceb656667ec0c8044 /util
parentbb3d7702e8dd0fd84c9496e226b46ce964b76e13 (diff)
downloadqemu-87f4fe7653baf55b5c2f2753fe6003f473c07342.zip
qemu-87f4fe7653baf55b5c2f2753fe6003f473c07342.tar.gz
qemu-87f4fe7653baf55b5c2f2753fe6003f473c07342.tar.bz2
timer: introduce new virtual clock
Slirp and VNC modules use virtual clock for processing some events that are related to the guest execution speed. But virtual clock-related events are consideres to be deterministic and are recorded/replayed by icount mechanism. But slirp and VNC lie outside the recorded guest core (which includes CPU and peripherals). Therefore slirp and VNC are external for the guest, but should work at guest speed. This patch introduces new virtual clock which can be used for external subsystems for running timers that are synchronized with the guest. Signed-off-by: Pavel Dovgalyuk <Pavel.Dovgaluk@ispras.ru> Message-Id: <20180912082002.3228.82417.stgit@pasha-VirtualBox> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'util')
-rw-r--r--util/qemu-timer.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/util/qemu-timer.c b/util/qemu-timer.c
index 86bfe84..eb60d8f 100644
--- a/util/qemu-timer.c
+++ b/util/qemu-timer.c
@@ -496,6 +496,7 @@ bool timerlist_run_timers(QEMUTimerList *timer_list)
switch (timer_list->clock->type) {
case QEMU_CLOCK_REALTIME:
+ case QEMU_CLOCK_VIRTUAL_EXT:
break;
default:
case QEMU_CLOCK_VIRTUAL:
@@ -597,6 +598,7 @@ int64_t qemu_clock_get_ns(QEMUClockType type)
return get_clock();
default:
case QEMU_CLOCK_VIRTUAL:
+ case QEMU_CLOCK_VIRTUAL_EXT:
if (use_icount) {
return cpu_get_icount();
} else {