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 lists.gnu.org (lists.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 0D22BC5475B for ; Mon, 11 Mar 2024 17:46:23 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1rjjeE-0002V4-Qi; Mon, 11 Mar 2024 13:41:14 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1rjjeC-0002UK-Ly for qemu-devel@nongnu.org; Mon, 11 Mar 2024 13:41:12 -0400 Received: from mail-pf1-x42d.google.com ([2607:f8b0:4864:20::42d]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1rjjeA-0007LL-Oj for qemu-devel@nongnu.org; Mon, 11 Mar 2024 13:41:12 -0400 Received: by mail-pf1-x42d.google.com with SMTP id d2e1a72fcca58-6e5a50d91b4so3152525b3a.2 for ; Mon, 11 Mar 2024 10:41:10 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1710178869; x=1710783669; darn=nongnu.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=zYd02SLfgP/LCWG+Mrru0HvWw0TZYZU2hsjtTtlA/n0=; b=gJFtBBXkulb8RBZMXYFemYICx4m0WVqcvgzw5x9zHiO6X9/qyLtGTff0hw3x/iaVg3 SO7lLp/zSC3f0nxbY+T5oT6m7nIXxKhkp19Ls2haNyxKfd7apNFSlakLofGtPxQR+4et qkl2zluO0QgaFtduSAsCJBQV0xiYlQCFAFBl5YhK3VplgjyEAjBMwxQCfilmA407F7B0 2/3Rhi4nQQ3XMXxg6L4mK5AkbwlvSzkvfWAzRlB2/cTBFUZPpcUtCRC+Bg+vPvERnqu3 T1SV5DJ6Y5TfbK4mEpZn0KQ6Qo2E/FvGOBlTgnFfci/va8HhTffxXRZb2c1rHt1FKB/j iDmA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1710178869; x=1710783669; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=zYd02SLfgP/LCWG+Mrru0HvWw0TZYZU2hsjtTtlA/n0=; b=jgLq6lmro235JX+3CiAf3/be4aS+cnwvN1cZiRt0L+uzN62V2YABlhg/a+YCQdvhKj 70H4cvPfef/vsvle/HzD/ABH95tUYIKnTR48Ei4UJn1ekP9NJoJMPMbN/86WjzPrD1c3 QqnwrK/T9hrvcPy9LEQs2yQpb8MVCgM8Zoo4Kiow4rVEefDG0I477uPXOb7qqM8eSpP3 fkBachu+eI/yPplv8s2OloIkye533C9MSwr7kVGGhA1XD2F3gNyCbX9WU//63lb+jTwE txllJte7Wh8ghf9f7MsGxQzvGHKWcb5WxeN4+6bix37H2QQaXc0zITT6q1+1enbDgpru 20Mw== X-Gm-Message-State: AOJu0YyARegjDMjjObnZ0ryfJkWdnd7ho7ld+YGFZuW/XLwryFZ14he6 dRdTjWFYfdv4Gff46bqmATeWhU7CId4crSN4vQ4G1MyEaJgn8VH/IAnZBBjwKPc= X-Google-Smtp-Source: AGHT+IFEW4kHNws9S75IZ2FSIr5IIrHrUjMISTYkQyCh5bMdiJVDKOJdfPElSeMvp/3/FIl1qbcYLA== X-Received: by 2002:a05:6a20:6a23:b0:1a1:4e68:30db with SMTP id p35-20020a056a206a2300b001a14e6830dbmr9792704pzk.12.1710178869131; Mon, 11 Mar 2024 10:41:09 -0700 (PDT) Received: from wheely.local0.net ([118.208.155.46]) by smtp.gmail.com with ESMTPSA id a18-20020a62d412000000b006e67b4d7b74sm4593187pfh.197.2024.03.11.10.41.04 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 11 Mar 2024 10:41:08 -0700 (PDT) From: Nicholas Piggin To: qemu-devel@nongnu.org Cc: Nicholas Piggin , Pavel Dovgalyuk , =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= , Richard Henderson , =?UTF-8?q?Alex=20Benn=C3=A9e?= , Paolo Bonzini , John Snow , Cleber Rosa , Wainer dos Santos Moschetta , Beraldo Leal , Michael Tokarev Subject: [PATCH v4 06/24] chardev: set record/replay on the base device of a muxed device Date: Tue, 12 Mar 2024 03:40:08 +1000 Message-ID: <20240311174026.2177152-7-npiggin@gmail.com> X-Mailer: git-send-email 2.42.0 In-Reply-To: <20240311174026.2177152-1-npiggin@gmail.com> References: <20240311174026.2177152-1-npiggin@gmail.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Received-SPF: pass client-ip=2607:f8b0:4864:20::42d; envelope-from=npiggin@gmail.com; helo=mail-pf1-x42d.google.com 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, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, FREEMAIL_FROM=0.001, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 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: 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 chardev events to a muxed device don't get recorded because e.g., qemu_chr_be_write() checks whether the base device has the record flag set. This can be seen when replaying a trace that has characters typed into the console, an examination of the log shows they are not recorded. Setting QEMU_CHAR_FEATURE_REPLAY on the base chardev fixes the problem. Signed-off-by: Nicholas Piggin --- chardev/char.c | 71 +++++++++++++++++++++++++++++++++++--------------- 1 file changed, 50 insertions(+), 21 deletions(-) diff --git a/chardev/char.c b/chardev/char.c index 3c43fb1278..ba847b6e9e 100644 --- a/chardev/char.c +++ b/chardev/char.c @@ -615,11 +615,24 @@ ChardevBackend *qemu_chr_parse_opts(QemuOpts *opts, Error **errp) return backend; } -Chardev *qemu_chr_new_from_opts(QemuOpts *opts, GMainContext *context, - Error **errp) +static void qemu_chardev_set_replay(Chardev *chr, Error **errp) +{ + if (replay_mode != REPLAY_MODE_NONE) { + if (CHARDEV_GET_CLASS(chr)->chr_ioctl) { + error_setg(errp, "Replay: ioctl is not supported " + "for serial devices yet"); + return; + } + qemu_chr_set_feature(chr, QEMU_CHAR_FEATURE_REPLAY); + replay_register_char_driver(chr); + } +} + +static Chardev *__qemu_chr_new_from_opts(QemuOpts *opts, GMainContext *context, + bool replay, Error **errp) { const ChardevClass *cc; - Chardev *chr = NULL; + Chardev *base = NULL, *chr = NULL; ChardevBackend *backend = NULL; const char *name = qemu_opt_get(opts, "backend"); const char *id = qemu_opts_id(opts); @@ -657,11 +670,11 @@ Chardev *qemu_chr_new_from_opts(QemuOpts *opts, GMainContext *context, chr = qemu_chardev_new(bid ? bid : id, object_class_get_name(OBJECT_CLASS(cc)), backend, context, errp); - if (chr == NULL) { goto out; } + base = chr; if (bid) { Chardev *mux; qapi_free_ChardevBackend(backend); @@ -681,11 +694,25 @@ Chardev *qemu_chr_new_from_opts(QemuOpts *opts, GMainContext *context, out: qapi_free_ChardevBackend(backend); g_free(bid); + + if (replay && base) { + /* RR should be set on the base device, not the mux */ + qemu_chardev_set_replay(base, errp); + } + return chr; } -Chardev *qemu_chr_new_noreplay(const char *label, const char *filename, - bool permit_mux_mon, GMainContext *context) +Chardev *qemu_chr_new_from_opts(QemuOpts *opts, GMainContext *context, + Error **errp) +{ + /* XXX: should this really not record/replay? */ + return __qemu_chr_new_from_opts(opts, context, false, errp); +} + +static Chardev *__qemu_chr_new(const char *label, const char *filename, + bool permit_mux_mon, GMainContext *context, + bool replay) { const char *p; Chardev *chr; @@ -693,14 +720,22 @@ Chardev *qemu_chr_new_noreplay(const char *label, const char *filename, Error *err = NULL; if (strstart(filename, "chardev:", &p)) { - return qemu_chr_find(p); + chr = qemu_chr_find(p); + if (replay) { + qemu_chardev_set_replay(chr, &err); + if (err) { + error_report_err(err); + return NULL; + } + } + return chr; } opts = qemu_chr_parse_compat(label, filename, permit_mux_mon); if (!opts) return NULL; - chr = qemu_chr_new_from_opts(opts, context, &err); + chr = __qemu_chr_new_from_opts(opts, context, replay, &err); if (!chr) { error_report_err(err); goto out; @@ -722,24 +757,18 @@ out: return chr; } +Chardev *qemu_chr_new_noreplay(const char *label, const char *filename, + bool permit_mux_mon, GMainContext *context) +{ + return __qemu_chr_new(label, filename, permit_mux_mon, context, false); +} + static Chardev *qemu_chr_new_permit_mux_mon(const char *label, const char *filename, bool permit_mux_mon, GMainContext *context) { - Chardev *chr; - chr = qemu_chr_new_noreplay(label, filename, permit_mux_mon, context); - if (chr) { - if (replay_mode != REPLAY_MODE_NONE) { - qemu_chr_set_feature(chr, QEMU_CHAR_FEATURE_REPLAY); - } - if (qemu_chr_replay(chr) && CHARDEV_GET_CLASS(chr)->chr_ioctl) { - error_report("Replay: ioctl is not supported " - "for serial devices yet"); - } - replay_register_char_driver(chr); - } - return chr; + return __qemu_chr_new(label, filename, permit_mux_mon, context, true); } Chardev *qemu_chr_new(const char *label, const char *filename, -- 2.42.0