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Thu, 08 Apr 2021 07:25:22 -0700 (PDT) Received: from [192.168.1.11] ([71.212.131.83]) by smtp.gmail.com with ESMTPSA id w203sm24151236pfc.188.2021.04.08.07.25.22 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Thu, 08 Apr 2021 07:25:22 -0700 (PDT) Subject: Re: [PATCH v4 00/12] target/arm mte fixes To: Peter Maydell References: <20210406174031.64299-1-richard.henderson@linaro.org> From: Richard Henderson Message-ID: <18c76f1b-cba5-8205-b945-bb908d460bf2@linaro.org> Date: Thu, 8 Apr 2021 07:25:19 -0700 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.7.1 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-US Content-Transfer-Encoding: 7bit Received-SPF: pass client-ip=2607:f8b0:4864:20::62a; envelope-from=richard.henderson@linaro.org; helo=mail-pl1-x62a.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=unavailable 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: qemu-arm , QEMU Developers Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" On 4/8/21 5:47 AM, Peter Maydell wrote: >> Richard Henderson (12): >> accel/tcg: Preserve PAGE_ANON when changing page permissions >> target/arm: Check PAGE_WRITE_ORG for MTE writeability >> target/arm: Fix mte_checkN >> target/arm: Split out mte_probe_int >> target/arm: Fix unaligned checks for mte_check1, mte_probe1 >> test/tcg/aarch64: Add mte-5 >> target/arm: Replace MTEDESC ESIZE+TSIZE with SIZEM1 >> target/arm: Merge mte_check1, mte_checkN >> target/arm: Rename mte_probe1 to mte_probe >> target/arm: Simplify sve mte checking >> target/arm: Remove log2_esize parameter to gen_mte_checkN >> exec: Fix overlap of PAGE_ANON and PAGE_TARGET_1 > > So, what should we do with this series for 6.0 ? We'll be at rc3 > next week, and this big a change seems risky at this point > in the cycle. Is there anything in here that's worth extracting > as a for-6.0 change? (maybe patches 1, 2, 12?) Definitely 12, since that broke BTI. Patches 1 and 2 are certainly simple enough. Otherwise... the rest would be nice to have. It's quite isolated to mte=on. If you defer, I guess that's fine too -- the bug report did come in quite late. r~