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[174.21.149.226]) by smtp.gmail.com with ESMTPSA id f6sm3305995pfn.189.2020.04.23.12.45.14 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Thu, 23 Apr 2020 12:45:14 -0700 (PDT) Subject: Re: [PATCH] linux-user/riscv: fix up struct target_ucontext definition To: LIU Zhiwei References: <20200412020830.607-1-zhiwei_liu@c-sky.com> <07931c1c-c7b3-510a-d3cf-5fb6bc877e87@c-sky.com> From: Richard Henderson Message-ID: <4b752be1-009d-8a25-9da7-3159d1a24e1c@linaro.org> Date: Thu, 23 Apr 2020 12:45:12 -0700 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.7.0 MIME-Version: 1.0 In-Reply-To: <07931c1c-c7b3-510a-d3cf-5fb6bc877e87@c-sky.com> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 8bit Received-SPF: pass client-ip=2607:f8b0:4864:20::541; envelope-from=richard.henderson@linaro.org; helo=mail-pg1-x541.google.com X-detected-operating-system: by eggs.gnu.org: Error: [-] PROGRAM ABORT : Malformed IPv6 address (bad octet value). Location : parse_addr6(), p0f-client.c:67 X-Received-From: 2607:f8b0:4864:20::541 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: qemu-riscv@nongnu.org, riku.voipio@iki.fi, laurent@vivier.eu, wxy194768@alibaba-inc.com, "qemu-devel@nongnu.org Developers" , wenmeng_zhang@c-sky.com, palmer@dabbelt.com, Alistair Francis Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" On 4/22/20 6:55 PM, LIU Zhiwei wrote: > As far as I know, Guo Ren and Greentime are supporting RVV on Linux, based on > the v0.7.1 QEMU implementation. > The main problem is that VLEN is not a  fixed number. Neither is the SVE vector length fixed. That's one of the reasons I pointed you at the AArch64 sigcontext for ideas. > When the Linux kernel released with RVV, I will push a new sigcontext structure > here. Yep. r~