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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (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 A0031C4451B for ; Mon, 20 Jul 2026 03:24:08 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:Message-ID:Date:Subject:Cc :To:From:Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:In-Reply-To:References: List-Owner; bh=bCnSmsbevGJyoj01c8n/B0dQa+hbe7+aoEy4uNCPW9Y=; b=gg8Q0Ecls0I25I BYM4OoDebJM31V1LbRPbQ2sAS8+XnVLL6KP0AfREECQdVwsamXT7TfDRAcMENId446xNAl6iiF8v/ k7paMhNiG+MCW6D3BVbMOmNxDCZmWXb7qVpmrsBf91xHylR8V3bGpxwhnZr5VFPbWQ4gE9y0yRTbU 2tQ0/Qyg+x1S4VIPWGq41I/hfhO6xvAvocw9XeFH4nVm2hCLAxr1u0k/vxIhMzsBM0u1Mu0PEksWz w2St3Ku1nc15ZHgm/9giGX+H16HWG+mQOQw/eB6wR+GOmStFhjrAkS6AMoGgKxIpoW4zcyid66lSN 0P2lJJdIZXbKPCzovLCg==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.99.1 #2 (Red Hat Linux)) id 1wlebT-00000005kwL-38Gp; Mon, 20 Jul 2026 03:23:39 +0000 Received: from m16.mail.163.com ([220.197.31.5]) by bombadil.infradead.org with esmtps (Exim 4.99.1 #2 (Red Hat Linux)) id 1wlebP-00000005kvG-1iEf for linux-riscv@lists.infradead.org; Mon, 20 Jul 2026 03:23:37 +0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=163.com; s=s110527; h=From:To:Subject:Date:Message-ID:MIME-Version; bh=+X Mn/HERRhRRdCWQyLmAD3zDxrzoE0ajebjYk7PWN9c=; b=SJAj9QxPGPtl/ULag3 wjlHyp7gnhGEdbqCSwYB8Qu6RsfjhvINBHreW06FjD4QYCZSd6BgtdJELsYtguyt r827Vq5wNHcpXJk4AKio9dIODgqcHarbjsXlCblAFkhVW49nBoeh9plVme9TAEgt NDCh77mQEHTW/zfXNbOR5DKAs= Received: from Ubuntu.. (unknown []) by gzsmtp3 (Coremail) with SMTP id PigvCgBH+wKTlF1qrd2XIg--.2654S2; Mon, 20 Jul 2026 11:23:00 +0800 (CST) From: Xiaofeng Yuan To: Paul Walmsley , Palmer Dabbelt , Albert Ou Cc: Alexandre Ghiti , Nam Cao , linux-riscv@lists.infradead.org, linux-kernel@vger.kernel.org, xiaofengmian@163.com Subject: [PATCH v4 0/2] riscv: fix kprobes on minimal kernel configs Date: Mon, 20 Jul 2026 03:22:55 +0000 Message-ID: <20260720032258.5188-1-xiaofengmian@163.com> X-Mailer: git-send-email 2.43.0 MIME-Version: 1.0 X-CM-TRANSID: PigvCgBH+wKTlF1qrd2XIg--.2654S2 X-Coremail-Antispam: 1Uf129KBjvdXoW7XryDJFy8ur18KFyxKF13twb_yoW3KFX_Gw 1xtry3K3y8XayakFn7Kw4fWryjkayqgay8Cr1UAFy2gwnI9r9xCas5tF98Aw47Ar4fKrn3 Zas3uFy3Ar1IqjkaLaAFLSUrUUUUjb8apTn2vfkv8UJUUUU8Yxn0WfASr-VFAUDa7-sFnT 9fnUUvcSsGvfC2KfnxnUUI43ZEXa7sRZJ5otUUUUU== X-Originating-IP: [223.104.164.77] X-CM-SenderInfo: p0ld0w5hqjzxldq6il2tof0z/xtbDAhQ8P2pdlJRRCQAA36 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.9.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20260719_202335_920412_7C3A725A X-CRM114-Status: UNSURE ( 6.36 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-riscv@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-riscv" Errors-To: linux-riscv-bounces+linux-riscv=archiver.kernel.org@lists.infradead.org When building with an allnoconfig-derived minimal configuration (without CONFIG_STRICT_MODULE_RWX), kprobes fails because instruction slot pages from EXECMEM_KPROBES are read-only and patch_map() bypasses the fixmap writable alias. These two patches fix the infrastructure. PATCH 1/2 changelog: v2: use CONFIG_STRICT_MODULE_RWX instead of ARCH_HAS_EXECMEM_ROX v3: add commit description v4: fix indent alignment PATCH 2/2 changelog: v2: add commit description v3: early return when !CONFIG_STRICT_MODULE_RWX Xiaofeng Yuan (2): riscv: mm: make EXECMEM_KPROBES writable without CONFIG_STRICT_MODULE_RWX riscv: patch: skip fixmap mapping when kernel text is already writable arch/riscv/kernel/patch.c | 4 ++-- arch/riscv/mm/init.c | 4 +++- 2 files changed, 6 insertions(+), 2 deletions(-) -- 2.43.0 _______________________________________________ linux-riscv mailing list linux-riscv@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-riscv