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[174.21.84.25]) by smtp.gmail.com with ESMTPSA id r123sm19810449pfc.67.2021.02.15.13.05.48 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Mon, 15 Feb 2021 13:05:49 -0800 (PST) Subject: Re: [RFC PATCH 31/42] default-configs: Support o32 ABI with R5900 64-bit MIPS CPU To: =?UTF-8?Q?Philippe_Mathieu-Daud=c3=a9?= , qemu-devel@nongnu.org References: <20210214175912.732946-1-f4bug@amsat.org> <20210214175912.732946-32-f4bug@amsat.org> From: Richard Henderson Message-ID: Date: Mon, 15 Feb 2021 13:05:47 -0800 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.10.0 MIME-Version: 1.0 In-Reply-To: <20210214175912.732946-32-f4bug@amsat.org> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 8bit Received-SPF: pass client-ip=2607:f8b0:4864:20::434; envelope-from=richard.henderson@linaro.org; helo=mail-pf1-x434.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, NICE_REPLY_A=-0.001, 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: Thomas Huth , Aleksandar Rikalo , Fredrik Noring , Laurent Vivier , Richard Henderson , =?UTF-8?Q?Alex_Benn=c3=a9e?= , Aurelien Jarno , "Maciej W. Rozycki" Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" On 2/14/21 9:59 AM, Philippe Mathieu-Daudé wrote: > MIPS o32 ABI on 64-bit CPUs looks like a ILP32-on-64bit data > model, allowing 64-bit arithmetic and data movement instructions. > > Since this ABI seems to have only ever been used for the > development of the PS2 with the "Sony Linux Toolkit for > Playstation 2" targetting the R5900 CPU (little-endian), > we name this user-mode target 'r5900o32el'. > > Inspired-by: Richard Henderson > Signed-off-by: Philippe Mathieu-Daudé > --- > v2: Rename qemu-mips64o32el -> qemu-r5900o32el (Fredrik) > --- > docs/user/main.rst | 3 +++ > default-configs/targets/r5900o32el-linux-user.mak | 7 +++++++ > 2 files changed, 10 insertions(+) > create mode 100644 default-configs/targets/r5900o32el-linux-user.mak Reviewed-by: Richard Henderson r~