From: "Philippe Mathieu-Daudé" <philmd@linaro.org>
To: qemu-devel@nongnu.org
Cc: "Stefan Hajnoczi" <stefanha@redhat.com>,
"Fam Zheng" <fam@euphon.net>,
qemu-block@nongnu.org, "Paolo Bonzini" <pbonzini@redhat.com>,
"Pavel Dovgalyuk" <pavel.dovgaluk@ispras.ru>,
"Philippe Mathieu-Daudé" <philmd@linaro.org>
Subject: [PATCH 1/3] util/async: Only call icount_notify_exit() if icount is enabled
Date: Thu, 7 Dec 2023 11:26:29 +0100 [thread overview]
Message-ID: <20231207102632.33634-2-philmd@linaro.org> (raw)
In-Reply-To: <20231207102632.33634-1-philmd@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
---
stubs/icount.c | 2 +-
util/async.c | 16 +++++++++-------
2 files changed, 10 insertions(+), 8 deletions(-)
diff --git a/stubs/icount.c b/stubs/icount.c
index 6df8c2bf7d..fc3beac003 100644
--- a/stubs/icount.c
+++ b/stubs/icount.c
@@ -43,7 +43,7 @@ void icount_account_warp_timer(void)
{
abort();
}
-
void icount_notify_exit(void)
{
+ abort();
}
diff --git a/util/async.c b/util/async.c
index 8f90ddc304..9007642c27 100644
--- a/util/async.c
+++ b/util/async.c
@@ -94,13 +94,15 @@ static void aio_bh_enqueue(QEMUBH *bh, unsigned new_flags)
}
aio_notify(ctx);
- /*
- * Workaround for record/replay.
- * vCPU execution should be suspended when new BH is set.
- * This is needed to avoid guest timeouts caused
- * by the long cycles of the execution.
- */
- icount_notify_exit();
+ if (unlikely(icount_enabled())) {
+ /*
+ * Workaround for record/replay.
+ * vCPU execution should be suspended when new BH is set.
+ * This is needed to avoid guest timeouts caused
+ * by the long cycles of the execution.
+ */
+ icount_notify_exit();
+ }
}
/* Only called from aio_bh_poll() and aio_ctx_finalize() */
--
2.41.0
next prev parent reply other threads:[~2023-12-07 10:27 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-12-07 10:26 [PATCH 0/3] sysemu/replay: Restrict icount to TCG system emulation Philippe Mathieu-Daudé
2023-12-07 10:26 ` Philippe Mathieu-Daudé [this message]
2023-12-07 10:26 ` [PATCH 2/3] sysemu/replay: Restrict icount to TCG emulation Philippe Mathieu-Daudé
2023-12-07 10:26 ` [PATCH 3/3] sysemu/replay: Restrict icount to system emulation Philippe Mathieu-Daudé
2023-12-07 13:46 ` Philippe Mathieu-Daudé
2023-12-07 13:51 ` Philippe Mathieu-Daudé
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