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[88.187.86.199]) by smtp.gmail.com with ESMTPSA id ffacd0b85a97d-426ce5833dcsm3593962f8f.19.2025.10.10.03.39.07 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Fri, 10 Oct 2025 03:39:08 -0700 (PDT) Message-ID: <9c49aa4e-5402-42b6-9a80-ddd19bb81db5@linaro.org> Date: Fri, 10 Oct 2025 12:39:07 +0200 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v2 7/7] buildsys: Remove support for 32-bit MIPS hosts To: =?UTF-8?Q?Daniel_P=2E_Berrang=C3=A9?= Cc: qemu-devel@nongnu.org, =?UTF-8?Q?Alex_Benn=C3=A9e?= , Thomas Huth , Paolo Bonzini , Richard Henderson , =?UTF-8?Q?Marc-Andr=C3=A9_Lureau?= , devel@lists.libvirt.org, Jiaxun Yang , Aleksandar Rikalo , Riku Voipio , Huacai Chen , Aurelien Jarno References: <20251009195210.33161-1-philmd@linaro.org> <20251009195210.33161-8-philmd@linaro.org> Content-Language: en-US From: =?UTF-8?Q?Philippe_Mathieu-Daud=C3=A9?= In-Reply-To: Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit Received-SPF: pass client-ip=2a00:1450:4864:20::432; envelope-from=philmd@linaro.org; helo=mail-wr1-x432.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+qemu-devel=archiver.kernel.org@nongnu.org Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org On 10/10/25 10:46, Daniel P. Berrangé wrote: > On Thu, Oct 09, 2025 at 09:52:10PM +0200, Philippe Mathieu-Daudé wrote: >> Stop detecting 32-bit MIPS host as supported, update the >> deprecation document. See previous commit for rationale. >> >> Signed-off-by: Philippe Mathieu-Daudé >> --- >> docs/about/deprecated.rst | 13 +++++-------- >> docs/about/removed-features.rst | 6 ++++++ >> configure | 7 ------- >> 3 files changed, 11 insertions(+), 15 deletions(-) >> >> diff --git a/docs/about/deprecated.rst b/docs/about/deprecated.rst >> index 67e527740c0..79cc34cfeb6 100644 >> --- a/docs/about/deprecated.rst >> +++ b/docs/about/deprecated.rst >> @@ -172,17 +172,14 @@ This argument has always been ignored. >> Host Architectures >> ------------------ >> >> -Big endian MIPS since 7.2; 32-bit little endian MIPS since 9.2, MIPS since 11.0 > > Did 'Big endian MIPS' refer to 32-bit, or both 32 & 64-bit ? I'm guessing > it was only 32-bit BE, given the heading of your removed-features.txt > change. Both. * 7.2 deprecated: - 32-bit big endian MIPS host - 64-bit big endian MIPS host Not deprecated remaining: - 32-bit little endian MIPS host - 64-bit little endian MIPS host * 9.2 deprecated: - 32-bit little endian MIPS host Not deprecated remaining: - 64-bit little endian MIPS host * 11.0 deprecated: - 64-bit little endian MIPS host No non-deprecated MIPS host remaining As of 11.0 we can remove what was deprecated previous 10.1. > > But then did "MIPS since 11.0" refer to 64-bit little endian only, or > both big & little endian for 64-bit ? > > Given the wide variety of things all ambiguously called "MIPS", > its worth being explicit.... > >> -''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''' >> +MIPS (since 11.0) >> +''''''''''''''''' > > ...so if this is 64-bit MIPS, big & little endian, lets say so I'll update to "64-bit little endian MIPS". > >> >> -As Debian 10 ("Buster") moved into LTS the big endian 32 bit version of >> -MIPS moved out of support making it hard to maintain our >> -cross-compilation CI tests of the architecture. As we no longer have >> -CI coverage support may bitrot away before the deprecation process >> +MIPS is not supported by Debian 13 ("Trixie") and newer, making it hard to >> +maintain our cross-compilation CI tests of the architecture. As we no longer >> +have CI coverage support may bitrot away before the deprecation process >> completes. >> >> -Likewise, MIPS is not supported by Debian 13 ("Trixie") and newer. >> - >> System emulation on 32-bit x86 hosts (since 8.0) >> '''''''''''''''''''''''''''''''''''''''''''''''' >> >> diff --git a/docs/about/removed-features.rst b/docs/about/removed-features.rst >> index a5338e44c24..53829f59e65 100644 >> --- a/docs/about/removed-features.rst >> +++ b/docs/about/removed-features.rst >> @@ -896,6 +896,12 @@ work around the atomicity issues in system mode by running all vCPUs >> in a single thread context; in user mode atomicity was simply broken. >> From 10.0, QEMU has disabled configuration of 64-bit guests on 32-bit hosts. >> >> +32-bit MIPS (since 11.0) >> +'''''''''''''''''''''''' >> + >> +Debian 12 "Bookworm" removed support for 32-bit MIPS, making it hard to >> +maintain our cross-compilation CI tests of the architecture. >> + >> Guest Emulator ISAs >> -------------------