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[174.21.143.238]) by smtp.gmail.com with ESMTPSA id b5sm237658pju.50.2020.05.19.11.56.45 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 19 May 2020 11:56:45 -0700 (PDT) From: Richard Henderson To: qemu-devel@nongnu.org Subject: [PATCH 0/2] linux-user: mmap/mprotect prot values Date: Tue, 19 May 2020 11:56:43 -0700 Message-Id: <20200519185645.3915-1-richard.henderson@linaro.org> X-Mailer: git-send-email 2.20.1 MIME-Version: 1.0 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: No matching host in p0f cache. That's all we know. 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_PASS=-0.001, URIBL_BLOCKED=0.001 autolearn=_AUTOLEARN 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: laurent@vivier.eu Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" The new validation hook will give me a place to add extra hooks to handle BTI and MTE. But in the meantime, we can adjust the host page protections to make PROT_EXEC reliable. r~ Richard Henderson (2): linux-user: Validate mmap/mprotect prot value linux-user: Adjust guest page protection for the host linux-user/mmap.c | 110 ++++++++++++++++++++++++++++++++-------------- 1 file changed, 77 insertions(+), 33 deletions(-) -- 2.20.1