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Wed, 05 May 2021 03:43:18 -0700 (PDT) Received: from zen.linaroharston ([51.148.130.216]) by smtp.gmail.com with ESMTPSA id f22sm5376662wmj.42.2021.05.05.03.43.17 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 05 May 2021 03:43:17 -0700 (PDT) Received: from zen (localhost [127.0.0.1]) by zen.linaroharston (Postfix) with ESMTP id 9A5FD1FF7E; Wed, 5 May 2021 11:43:16 +0100 (BST) References: <20210505092259.8202-1-alex.bennee@linaro.org> <20210505092259.8202-6-alex.bennee@linaro.org> <87lf8to49d.fsf@linaro.org> User-agent: mu4e 1.5.13; emacs 28.0.50 From: Alex =?utf-8?Q?Benn=C3=A9e?= To: =?utf-8?Q?Daniel_P=2E_Berrang=C3=A9?= Subject: Re: [PATCH v1 5/7] docs: mark intention to deprecate TCG tracing functionality Date: Wed, 05 May 2021 11:41:46 +0100 In-reply-to: <87lf8to49d.fsf@linaro.org> Message-ID: <87im3xo3zv.fsf@linaro.org> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Received-SPF: pass client-ip=2a00:1450:4864:20::32f; envelope-from=alex.bennee@linaro.org; helo=mail-wm1-x32f.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, RCVD_IN_DNSWL_NONE=-0.0001, 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: "reviewer:Incompatible changes" , qemu-devel@nongnu.org, robhenry@microsoft.com, aaron@os.amperecomputing.com, vilanova@imperial.ac.uk, mahmoudabdalghany@outlook.com, minyihh@uci.edu, cota@braap.org, stefanha@redhat.com, mohamad.gebai@gmail.com, kuhn.chenqun@huawei.com, matheus.ferst@eldorado.org.br Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" Alex Benn=C3=A9e writes: > Daniel P. Berrang=C3=A9 writes: > >> On Wed, May 05, 2021 at 10:22:57AM +0100, Alex Benn=C3=A9e wrote: >>> +TCG introspection features >>> +-------------------------- >>> + >>> +TCG trace-events (since 6.1) >>> +'''''''''''''''''''''''''''' >>> + >>> +The ability to add new TCG trace points has bit rotted and as the >> >> When you say this "has bit rotted", just how bad is the situation ? >> >> Is the TCG tracing still usable at all, or is is fully broken >> already ? > > Well patches 6/7 got it working for generic TCG things. I haven't been > able to get the architecture one working but I suspect that is some sort > of interaction between the per-arch trace header generation that I > haven't quite figured out yet. Ahh it's since 7609ffb919 (trace: fix tcg tracing build breakage) which limited tcg/vcpu events to the root trace-events file. --=20 Alex Benn=C3=A9e