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[Qemu-devel] [PATCH 06/18] tweak qemu_notify_event
From: |
Paolo Bonzini |
Subject: |
[Qemu-devel] [PATCH 06/18] tweak qemu_notify_event |
Date: |
Wed, 10 Mar 2010 11:38:43 +0100 |
Instead of testing specially next_cpu in host_alarm_handler, just do
that in qemu_notify_event. The idea is, if we are not running (or
not yet running) target CPU code, prepare things so that the execution
loop is exited asap; just make that clear.
Signed-off-by: Paolo Bonzini <address@hidden>
---
vl.c | 10 +++-------
1 files changed, 3 insertions(+), 7 deletions(-)
diff --git a/vl.c b/vl.c
index a546d85..1328979 100644
--- a/vl.c
+++ b/vl.c
@@ -1055,13 +1055,6 @@ static void host_alarm_handler(int host_signum)
qemu_get_clock(host_clock))) {
t->expired = alarm_has_dynticks(t);
-
-#ifndef CONFIG_IOTHREAD
- if (next_cpu) {
- /* stop the currently executing cpu because a timer occured */
- cpu_exit(next_cpu);
- }
-#endif
t->pending = 1;
qemu_notify_event();
}
@@ -3365,6 +3358,9 @@ void qemu_notify_event(void)
if (env) {
cpu_exit(env);
}
+ if (next_cpu && env != next_cpu) {
+ cpu_exit(next_cpu);
+ }
}
void qemu_mutex_lock_iothread(void) {}
--
1.6.6
- [Qemu-devel] [PATCH 00/18] extract qemu-timer.c, Paolo Bonzini, 2010/03/10
- [Qemu-devel] [PATCH 01/18] avoid dubiously clever code in win32_start_timer, Paolo Bonzini, 2010/03/10
- [Qemu-devel] [PATCH 02/18] fix error in win32_rearm_timer, Paolo Bonzini, 2010/03/10
- [Qemu-devel] [PATCH 03/18] only one flag is needed for alarm_timer, Paolo Bonzini, 2010/03/10
- [Qemu-devel] [PATCH 04/18] more alarm timer cleanup, Paolo Bonzini, 2010/03/10
- [Qemu-devel] [PATCH 05/18] do not use qemu_event_increment outside qemu_notify_event, Paolo Bonzini, 2010/03/10
- [Qemu-devel] [PATCH 07/18] remove qemu_rearm_alarm_timer from main loop, Paolo Bonzini, 2010/03/10
- [Qemu-devel] [PATCH 08/18] extract timer handling out of main_loop_wait, Paolo Bonzini, 2010/03/10
- [Qemu-devel] [PATCH 06/18] tweak qemu_notify_event,
Paolo Bonzini <=
- [Qemu-devel] [PATCH 10/18] introduce and use qemu_clock_enable, Paolo Bonzini, 2010/03/10
- [Qemu-devel] [PATCH 11/18] centralize handling of -icount, Paolo Bonzini, 2010/03/10
- [Qemu-devel] [PATCH 09/18] change qemu_run_timers interface, Paolo Bonzini, 2010/03/10
- [Qemu-devel] [PATCH 13/18] add qemu_alarm_pending, Paolo Bonzini, 2010/03/10
- [Qemu-devel] [PATCH 12/18] add qemu_icount_round, Paolo Bonzini, 2010/03/10
- [Qemu-devel] [PATCH 14/18] new function qemu_icount_delta, Paolo Bonzini, 2010/03/10
- [Qemu-devel] [PATCH 15/18] move vmstate registration of vmstate_timers earlier, Paolo Bonzini, 2010/03/10
- [Qemu-devel] [PATCH 16/18] place together more #ifdef CONFIG_IOTHREAD blocks, Paolo Bonzini, 2010/03/10
- [Qemu-devel] [PATCH 17/18] disentangle tcg and deadline calculation, Paolo Bonzini, 2010/03/10
- [Qemu-devel] [PATCH 18/18] split out qemu-timer.c, Paolo Bonzini, 2010/03/10