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Tue, 02 Dec 2025 18:07:40 -0800 (PST) Received: from [192.168.1.87] ([38.41.223.211]) by smtp.gmail.com with ESMTPSA id 98e67ed59e1d1-34910b78f3bsm770427a91.2.2025.12.02.18.07.39 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Tue, 02 Dec 2025 18:07:39 -0800 (PST) Message-ID: Date: Tue, 2 Dec 2025 18:07:38 -0800 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH 1/2] linux-user: add a plugin API to filter syscalls Content-Language: en-US To: Ziyang Zhang , qemu-devel Cc: Riku Voipio , Laurent Vivier , Alex Bennee , Alexandre Iooss , Mahmoud Mandour , Richard Henderson , Zhengwei Qi , Yun Wang , Mingyuan Xia , Kailiang Xu References: <20251110133442.579086-1-functioner@sjtu.edu.cn> <20251110133442.579086-2-functioner@sjtu.edu.cn> From: Pierrick Bouvier In-Reply-To: <20251110133442.579086-2-functioner@sjtu.edu.cn> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Received-SPF: pass client-ip=2607:f8b0:4864:20::1035; envelope-from=pierrick.bouvier@linaro.org; helo=mail-pj1-x1035.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 11/10/25 5:34 AM, Ziyang Zhang wrote: > This commit adds a syscall filter API to the TCG plugin API set. > Plugins can register a filter callback to QEMU to decide whether > to intercept a syscall, process it and bypass the QEMU syscall > handler. > > Signed-off-by: Ziyang Zhang > Co-authored-by: Mingyuan Xia > --- > include/qemu/plugin-event.h | 1 + > include/qemu/plugin.h | 29 +++++++++++++++++++++-------- > include/qemu/qemu-plugin.h | 24 ++++++++++++++++++++++++ > include/user/syscall-trace.h | 17 +++++++++++++++++ > linux-user/syscall.c | 7 +++++-- > plugins/api.c | 7 +++++++ > plugins/core.c | 36 ++++++++++++++++++++++++++++++++++++ > 7 files changed, 111 insertions(+), 10 deletions(-) > Looks good to me, and will be useful for syscalls obervation, fuzzing, and integrating native libraries through hypercall mechanism. It's worth merging this. Reviewed-by: Pierrick Bouvier