From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 093E4D59D99 for ; Sun, 14 Dec 2025 14:21:08 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1vUmxd-0000qo-3n; Sun, 14 Dec 2025 09:20:33 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1vUmxb-0000qf-C3 for qemu-devel@nongnu.org; Sun, 14 Dec 2025 09:20:31 -0500 Received: from smtp232.sjtu.edu.cn ([202.120.2.232]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1vUmxY-0006Su-MW for qemu-devel@nongnu.org; Sun, 14 Dec 2025 09:20:31 -0500 Received: from proxy188.sjtu.edu.cn (smtp188.sjtu.edu.cn [202.120.2.188]) by smtp232.sjtu.edu.cn (Postfix) with ESMTPS id D7ADF1009BEE8; Sun, 14 Dec 2025 22:20:17 +0800 (CST) Received: from pc.. (unknown [202.120.40.100]) by proxy188.sjtu.edu.cn (Postfix) with ESMTPSA id 0B24037C806; Sun, 14 Dec 2025 22:20:17 +0800 (CST) From: Ziyang Zhang To: qemu-devel Cc: Riku Voipio , Laurent Vivier , Alex Bennee , Alexandre Iooss , Mahmoud Mandour , Pierrick Bouvier , Richard Henderson , Zhengwei Qi , Yun Wang , Mingyuan Xia , Kailiang Xu , Ziyang Zhang Subject: [PATCH v3 0/2] linux-user: add plugin API to filter syscalls Date: Sun, 14 Dec 2025 22:19:57 +0800 Message-Id: <20251214141959.175805-1-functioner@sjtu.edu.cn> X-Mailer: git-send-email 2.34.1 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Received-SPF: pass client-ip=202.120.2.232; envelope-from=functioner@sjtu.edu.cn; helo=smtp232.sjtu.edu.cn X-Spam_score_int: -18 X-Spam_score: -1.9 X-Spam_bar: - X-Spam_report: (-1.9 / 5.0 requ) BAYES_00=-1.9, RCVD_IN_VALIDITY_CERTIFIED_BLOCKED=0.001, RCVD_IN_VALIDITY_RPBL_BLOCKED=0.001, 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 We choose a smaller magic syscall number to avoid the illegal instruction exception [1] on qemu-arm. PATCH v3: 1. Change to a smaller magic syscall number and add comments 2. Set register flags out of the for-loop PATCH v2: 1. Rebased on newest version of master PATCH v1: 1. Format the code RFC v2: 1. Simplify the syscall filter mechanism and remove fork-cpu 2. Add QEMU_PLUGIN_EV_VCPU_SYSCALL_FILTER enum RFC v1: 1. Add syscall filter registry 2. Add fork-cpu interface to re-enter cpu_loop when handling syscalls [1] https://lore.kernel.org/qemu-devel/20251212141541.1792111-1-functioner@sjtu.edu.cn/T/#m0e6809c5a894d64a8b7e67324a4b7cb414c644bf Ziyang Zhang (2): linux-user: add plugin API to filter syscalls tcg tests: add a test to verify the syscall filter plugin API include/qemu/plugin-event.h | 1 + include/qemu/plugin.h | 33 ++++++++++++----- include/qemu/qemu-plugin.h | 32 ++++++++++++++++ include/user/syscall-trace.h | 17 +++++++++ linux-user/syscall.c | 7 +++- plugins/api.c | 7 ++++ plugins/core.c | 37 +++++++++++++++++++ tests/tcg/multiarch/Makefile.target | 4 +- .../multiarch/test-plugin-syscall-filter.c | 35 ++++++++++++++++++ tests/tcg/plugins/syscall.c | 19 ++++++++++ 10 files changed, 180 insertions(+), 12 deletions(-) create mode 100644 tests/tcg/multiarch/test-plugin-syscall-filter.c -- 2.34.1