From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from lists1p.gnu.org (lists1p.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 80AEFC9830E for ; Fri, 25 Sep 2026 09:40:25 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists1p.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1xA2Ob-0000Q2-4M; Fri, 25 Sep 2026 05:39:09 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists1p.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1xA2OT-0000Ow-Qa for qemu-devel@nongnu.org; Fri, 25 Sep 2026 05:39:03 -0400 Received: from tor.source.kernel.org ([172.105.4.254]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1xA2OS-0006Ef-Eq for qemu-devel@nongnu.org; Fri, 25 Sep 2026 05:39:01 -0400 Received: from smtp.kernel.org (quasi.space.kernel.org [100.103.45.18]) by tor.source.kernel.org (Postfix) with ESMTP id C35486022F; Fri, 25 Sep 2026 09:38:59 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id F0FBE1F000FF; Fri, 25 Sep 2026 09:38:57 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1790329139; bh=ECyzsDtcDEjajNrCXxTfs09UvMY1Lp8zlSn++FOVyE4=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=JQ4Hg4IUriKQEViNP/Mg8ThD/YBIizn9pebLsh+LLRJRQzdqdHZrh7JcOKVWwUgxO 1MAp70iE4EKrZ8hW+QkAXqGVWebl7Vjjw4VeMXat8KZUdrPP0yBsMe11qGETA8aR8T apXPl1QJ89H1o5Pnikb4tEfSNLQozQUYvoqNV7VQ3OTn9Z1DkD3ZcU2+Mhed449vJw Ab+ky4CEfcXSFlLqE8kkfcIvy/FrtyRtqlhek2FdNn/O7O/uVTDOw9ru+B04PF+PHa XwryZ7XIjqdLlgdoNLeP2AYvQBraMcggjxfBT4nMisNlk9bEUqpopBDnzILwRvM01+ +jyWKQqgYv2zQ== From: Helge Deller To: qemu-devel@nongnu.org Cc: Pierrick Bouvier , Paolo Bonzini , Yoshinori Sato , Richard Henderson , Helge Deller , Laurent Vivier Subject: [PULL 6/8] accel/tcg: Set CF_NOIRQ during cpu_exec_step_atomic Date: Fri, 25 Sep 2026 11:38:42 +0200 Message-ID: <20260925093844.5685-7-deller@kernel.org> X-Mailer: git-send-email 2.54.0 In-Reply-To: <20260925093844.5685-1-deller@kernel.org> References: <20260925093844.5685-1-deller@kernel.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Received-SPF: pass client-ip=172.105.4.254; envelope-from=deller@kernel.org; helo=tor.source.kernel.org X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.001, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: qemu development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org From: Richard Henderson Do not go through the effort of grabbing the exclusive lock only to check for interrupts and exit without making progress. Cc: qemu-stable@nongnu.org Signed-off-by: Richard Henderson Tested-by: Mikulas Patocka Signed-off-by: Helge Deller --- accel/tcg/cpu-exec.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/accel/tcg/cpu-exec.c b/accel/tcg/cpu-exec.c index 5226cfb765..f4428e9f7b 100644 --- a/accel/tcg/cpu-exec.c +++ b/accel/tcg/cpu-exec.c @@ -566,7 +566,8 @@ void cpu_exec_step_atomic(CPUState *cpu) /* Execute in a serial context. */ s.cflags &= ~CF_PARALLEL; /* After 1 insn, return and release the exclusive lock. */ - s.cflags |= CF_NO_GOTO_TB | CF_NO_GOTO_PTR | 1; + s.cflags |= CF_NO_GOTO_TB | CF_NO_GOTO_PTR | CF_NOIRQ | 1; + /* * No need to check_for_breakpoints here. * We only arrive in cpu_exec_step_atomic after beginning execution -- 2.54.0