From nobody Tue Nov 18 14:13:42 2025 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=fail(p=none dis=none) header.from=ispras.ru ARC-Seal: i=1; a=rsa-sha256; t=1611060159; cv=none; d=zohomail.com; s=zohoarc; b=jJj20U5dwFOjhl1F93hGRs85oHDN4KtjSzR+IlfKI4AcO+jzhV2ZCSGBLd4dvisVvC0mLfOeNMP1epWX4VNzIqufs4JvIGNCeUWDSAg9HnHnbyR4SDpURJTAbOp3SHOJuCJHzYrj1I8IG1jkRkHJjw+6ze95XSTEY+SMh5nd+jM= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1611060159; h=Content-Type:Content-Transfer-Encoding:Cc:Date:From:List-Subscribe:List-Post:List-Id:List-Archive:List-Help:List-Unsubscribe:MIME-Version:Message-ID:Sender:Subject:To; bh=vuUoJfbuY4/YNca6WqvgRwLFYMxAgL7Swzjq0QndHH8=; b=WlLEYdzUG8ZszLIZHgHYb3v51BM2q0dr1lSWHMnXzVu+YRjsLQemBUda9dBOM0XZPTFsmKGx3jB/UImrNREk2mwYI9+uFJH5Ac9wJ/XFE+cNJQxdO54CBLeZjrJjjHxfjNLNM80ksNa+eauixA4eT9NH7dkVnIMAbLc5W0Sa6f0= ARC-Authentication-Results: i=1; mx.zohomail.com; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=fail header.from= (p=none dis=none) header.from= Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1611060159623583.7638845198387; Tue, 19 Jan 2021 04:42:39 -0800 (PST) Received: from localhost ([::1]:56396 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1l1qLF-0006kE-MZ for importer@patchew.org; Tue, 19 Jan 2021 07:42:37 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]:35162) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1l1qIp-0005hj-LC for qemu-devel@nongnu.org; Tue, 19 Jan 2021 07:40:07 -0500 Received: from mail.ispras.ru ([83.149.199.84]:50202) by eggs.gnu.org with esmtps (TLS1.2:DHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1l1qIm-0001gs-SS for qemu-devel@nongnu.org; Tue, 19 Jan 2021 07:40:07 -0500 Received: from [127.0.1.1] (unknown [62.118.151.149]) by mail.ispras.ru (Postfix) with ESMTPSA id C9F8440D403E; Tue, 19 Jan 2021 12:39:53 +0000 (UTC) Subject: [PATCH] replay: fix replay of the interrupts From: Pavel Dovgalyuk To: qemu-devel@nongnu.org Date: Tue, 19 Jan 2021 15:39:53 +0300 Message-ID: <161105999349.694343.16096128094758045254.stgit@pasha-ThinkPad-X280> User-Agent: StGit/0.23 MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=83.149.199.84; envelope-from=pavel.dovgalyuk@ispras.ru; helo=mail.ispras.ru X-Spam_score_int: -18 X-Spam_score: -1.9 X-Spam_bar: - X-Spam_report: (-1.9 / 5.0 requ) BAYES_00=-1.9, 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: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: pbonzini@redhat.com, richard.henderson@linaro.org, pavel.dovgalyuk@ispras.ru Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" Sometimes interrupt event comes at the same time with the virtual timers. In this case replay tries to proceed the timers, because deadline for them is zero. This patch allows processing interrupts and exceptions by entering the vCPU execution loop, when deadline is zero, but checkpoint associated with virtual timers is not ready to be replayed. Signed-off-by: Pavel Dovgalyuk --- accel/tcg/tcg-cpus-icount.c | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) diff --git a/accel/tcg/tcg-cpus-icount.c b/accel/tcg/tcg-cpus-icount.c index 9f45432275..a6d2bb8a88 100644 --- a/accel/tcg/tcg-cpus-icount.c +++ b/accel/tcg/tcg-cpus-icount.c @@ -81,7 +81,13 @@ void icount_handle_deadline(void) int64_t deadline =3D qemu_clock_deadline_ns_all(QEMU_CLOCK_VIRTUAL, QEMU_TIMER_ATTR_ALL); =20 - if (deadline =3D=3D 0) { + /* + * Instructions, interrupts, and exceptions are processed in cpu-exec. + * Don't interrupt cpu thread, when these events are waiting + * (i.e., there is no checkpoint) + */ + if (deadline =3D=3D 0 + && (replay_mode =3D=3D REPLAY_MODE_RECORD || replay_has_checkpoint= ())) { icount_notify_aio_contexts(); } }