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Tue, 10 Sep 2024 07:07:48 -0700 (PDT) From: =?UTF-8?q?Alex=20Benn=C3=A9e?= To: qemu-devel@nongnu.org Cc: Eduardo Habkost , Zhao Liu , Marcel Apfelbaum , Beraldo Leal , =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= , Alexandre Iooss , =?UTF-8?q?Alex=20Benn=C3=A9e?= , Pierrick Bouvier , Yanan Wang , Peter Maydell , Mahmoud Mandour , Thomas Huth , qemu-arm@nongnu.org, devel@lists.libvirt.org, Jiaxun Yang , Paolo Bonzini , Richard Henderson , Wainer dos Santos Moschetta Subject: [PATCH 12/26] deprecation: don't enable TCG plugins by default with TCI Date: Tue, 10 Sep 2024 15:07:19 +0100 Message-Id: <20240910140733.4007719-13-alex.bennee@linaro.org> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20240910140733.4007719-1-alex.bennee@linaro.org> References: <20240910140733.4007719-1-alex.bennee@linaro.org> 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=2a00:1450:4864:20::631; envelope-from=alex.bennee@linaro.org; helo=mail-ej1-x631.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=unavailable 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+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @linaro.org) X-ZM-MESSAGEID: 1725977336696116600 The softmmu memory instrumentation test sees so many more accesses than a normal translated host and its really not worth fixing up. Lets deprecate this odd configuration and save on the CI cycles. Signed-off-by: Alex Benn=C3=A9e Reviewed-by: Pierrick Bouvier --- docs/about/deprecated.rst | 8 ++++++++ configure | 11 +++++++++-- 2 files changed, 17 insertions(+), 2 deletions(-) diff --git a/docs/about/deprecated.rst b/docs/about/deprecated.rst index f7c7c33d39..5aa2e35314 100644 --- a/docs/about/deprecated.rst +++ b/docs/about/deprecated.rst @@ -196,6 +196,14 @@ benefits from having plenty of host memory it seems re= asonable to encourage users to use 64 bit builds of QEMU for analysis work whatever targets they are instrumenting. =20 +TCG Plugin support not enabled by default with TCI (since 9.2) +'''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''' + +While the TCG interpreter can interpret the TCG ops used by plugins it +is going to be so much slower it wouldn't make sense for any serious +instrumentation. Due to implementation differences there will also be +anomalies in things like memory instrumentation. + System emulator CPUs -------------------- =20 diff --git a/configure b/configure index 14581c1b9a..1bda6b3a3b 100755 --- a/configure +++ b/configure @@ -629,6 +629,9 @@ meson_option_parse() { exit 1 fi } +has_meson_option() { + test "${meson_options#*"$1"}" !=3D "$meson_options" +} =20 meson_add_machine_file() { if test "$cross_compile" =3D "yes"; then @@ -1048,8 +1051,12 @@ if test "$static" =3D "yes" ; then plugins=3D"no" fi if test "$plugins" !=3D "no" && test $host_bits -eq 64; then - plugins=3Dyes - subdirs=3D"$subdirs contrib/plugins" + if has_meson_option "-Dtcg_interpreter=3Dtrue"; then + plugins=3D"no" + else + plugins=3Dyes + subdirs=3D"$subdirs contrib/plugins" + fi fi =20 cat > $TMPC << EOF --=20 2.39.2