From: Richard Henderson <richard.henderson@linaro.org>
To: Pavel Dovgalyuk <pavel.dovgalyuk@ispras.ru>, qemu-devel@nongnu.org
Cc: pbonzini@redhat.com, alex.bennee@linaro.org, crosa@redhat.com,
f4bug@amsat.org
Subject: Re: [PATCH v2 2/9] replay: notify vCPU when BH is scheduled
Date: Wed, 4 May 2022 10:38:15 -0500 [thread overview]
Message-ID: <cbdbd90f-de6a-fc7f-0245-f3aac936a9b2@linaro.org> (raw)
In-Reply-To: <165165714007.1062896.13693480594668205608.stgit@pasha-ThinkPad-X280>
On 5/4/22 02:39, Pavel Dovgalyuk wrote:
> vCPU execution should be suspended when new BH is scheduled.
> This is needed to avoid guest timeouts caused by the long cycles
> of the execution. In replay mode execution may hang when
> vCPU sleeps and block event comes to the queue.
> This patch adds notification which wakes up vCPU or interrupts
> execution of guest code.
>
> Signed-off-by: Pavel Dovgalyuk<Pavel.Dovgalyuk@ispras.ru>
>
> --
>
> v2: changed first_cpu to current_cpu (suggested by Richard Henderson)
> ---
> include/sysemu/cpu-timers.h | 1 +
> softmmu/icount.c | 8 ++++++++
> stubs/icount.c | 4 ++++
> util/async.c | 8 ++++++++
> 4 files changed, 21 insertions(+)
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
r~
next prev parent reply other threads:[~2022-05-04 16:48 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-05-04 9:38 [PATCH v2 0/9] Record/replay refactoring and stuff Pavel Dovgalyuk
2022-05-04 9:38 ` [PATCH v2 1/9] replay: fix event queue flush for qemu shutdown Pavel Dovgalyuk
2022-05-04 9:39 ` [PATCH v2 2/9] replay: notify vCPU when BH is scheduled Pavel Dovgalyuk
2022-05-04 15:38 ` Richard Henderson [this message]
2022-05-04 9:39 ` [PATCH v2 3/9] replay: rewrite async event handling Pavel Dovgalyuk
2022-05-04 9:39 ` [PATCH v2 4/9] replay: simplify async event processing Pavel Dovgalyuk
2022-05-04 15:39 ` Richard Henderson
2022-05-04 9:39 ` [PATCH v2 5/9] docs: convert docs/devel/replay page to rst Pavel Dovgalyuk
2022-05-04 9:39 ` [PATCH v2 6/9] docs: move replay docs to docs/system/replay.rst Pavel Dovgalyuk
2022-05-04 9:39 ` [PATCH v2 7/9] tests/avocado: update replay_linux test Pavel Dovgalyuk
2022-05-04 9:39 ` [PATCH v2 8/9] tests/avocado: add replay Linux tests for virtio machine Pavel Dovgalyuk
2022-05-04 9:39 ` [PATCH v2 9/9] tests/avocado: add replay Linux test for Aarch64 machines Pavel Dovgalyuk
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