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[71.212.39.66]) by smtp.gmail.com with ESMTPSA id d9443c01a7336-21de32eb419sm65698135ad.145.2025.02.02.19.18.33 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 02 Feb 2025 19:18:33 -0800 (PST) From: Richard Henderson To: qemu-devel@nongnu.org Cc: pbonzini@redhat.com, mark.cave-ayland@ilande.co.uk, berrange@redhat.com, philmd@linaro.org, thuth@redhat.com Subject: [PATCH v2 13/14] meson: Deprecate 32-bit host support Date: Sun, 2 Feb 2025 19:18:20 -0800 Message-ID: <20250203031821.741477-14-richard.henderson@linaro.org> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20250203031821.741477-1-richard.henderson@linaro.org> References: <20250203031821.741477-1-richard.henderson@linaro.org> MIME-Version: 1.0 Received-SPF: pass client-ip=2607:f8b0:4864:20::62c; envelope-from=richard.henderson@linaro.org; helo=mail-pl1-x62c.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: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+patch=linaro.org@nongnu.org Sender: qemu-devel-bounces+patch=linaro.org@nongnu.org We deprecated i686 system mode support for qemu 8.0. However, to make real cleanups to TCG we need to deprecate all 32-bit hosts. Signed-off-by: Richard Henderson Reviewed-by: Thomas Huth Reviewed-by: Alex Bennée --- docs/about/deprecated.rst | 7 +++++++ meson.build | 6 ++---- 2 files changed, 9 insertions(+), 4 deletions(-) diff --git a/docs/about/deprecated.rst b/docs/about/deprecated.rst index 4a3c302962..7c61d0ba16 100644 --- a/docs/about/deprecated.rst +++ b/docs/about/deprecated.rst @@ -204,6 +204,13 @@ 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. +32-bit host operating systems (since 10.0) +'''''''''''''''''''''''''''''''''''''''''' + +Keeping 32-bit host support alive is a substantial burden for the +QEMU project. Thus QEMU will in future drop the support for all +32-bit host systems. + System emulator CPUs -------------------- diff --git a/meson.build b/meson.build index 866b8ce477..0dae54da0d 100644 --- a/meson.build +++ b/meson.build @@ -4833,14 +4833,12 @@ if host_arch == 'unknown' message('configure has succeeded and you can continue to build, but') message('QEMU will use a slow interpreter to emulate the target CPU.') endif -elif host_arch == 'mips' +elif host_long_bits < 64 message() warning('DEPRECATED HOST CPU') message() message('Support for CPU host architecture ' + cpu + ' is going to be') - message('dropped as soon as the QEMU project stops supporting Debian 12') - message('("Bookworm"). Going forward, the QEMU project will not guarantee') - message('that QEMU will compile or work on this host CPU.') + message('dropped in a future QEMU release.') endif if not supported_oses.contains(host_os)