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 987DBC4450A for ; Sun, 19 Jul 2026 08:12:17 +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=Jdc4NZ4fCrchLbdzXa9P9x3og3lAwXtd8QJFMhOzwBc=; b=BjbKVM5sSRE8+X VSw6nqE3k9cf6DkgEJlhDOEi2InO9ti7QIQZ7Iua6aFWEBSc4skLcjwWTDnb5hXfHxLAOKzomhzMl RCBTw1izYl2Yo7TbymXa8R5htCOnjnHZZn0/75lb46CNlHHm8M1DOya0pZ/ERYxyzHuFVKXWQUH7a dqHQ91PMFwo0DrI/WkrGjR1AtZmwe/qtaYTN1+97okAOhY+068Ex7RWfm9cLVrqWJ0R8C/ShBaawM QF0WLpJp5YKijeUs4YW37bgYsA/61NAF4qUwyZGnQj4RYuAXVHbHKRPlvARghbueDjG8fE0r1ZGIL uhcGooX3mzaMlXYfIUag==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.99.1 #2 (Red Hat Linux)) id 1wlMcg-00000004piG-1dLP; Sun, 19 Jul 2026 08:11:42 +0000 Received: from m16.mail.163.com ([220.197.31.2]) by bombadil.infradead.org with esmtps (Exim 4.99.1 #2 (Red Hat Linux)) id 1wlMcd-00000004pfI-3f8B for linux-riscv@lists.infradead.org; Sun, 19 Jul 2026 08:11:41 +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=jZ Moaj6iXtsIsiavVwALtLTmgKmKM6rTa+1phtopYkY=; b=TWRouIRHkCiMvzj1Nl V8pIshbWBv41R1PKB1+gep8WhUOhWc0+WKiesKjQHIhWlMxZCS6RrM+WvQn4y9d+ iue4S6I6rcutWMd5SZ8qyCB+xB9Z4Eig7jMK0jKqewf3wvE8w/dg2sataAwhJ+Ne ox7W5Co1+F+mue16VlDfDtCSk= Received: from Ubuntu.. (unknown []) by gzga-smtp-mtada-g0-1 (Coremail) with SMTP id _____wC3z6F9hlxq+TAUKA--.58193S2; Sun, 19 Jul 2026 16:10:38 +0800 (CST) From: Xiaofeng Yuan To: pjw@kernel.org Cc: palmer@dabbelt.com, aou@eecs.berkeley.edu, namcao@linutronix.de, alex@ghiti.fr, broonie@kernel.org, linux-riscv@lists.infradead.org, linux-kernel@vger.kernel.org Subject: [PATCH v2 0/2] riscv: fix kprobes on minimal kernel configs Date: Sun, 19 Jul 2026 08:10:34 +0000 Message-ID: <20260719081037.5749-1-xiaofengmian@163.com> X-Mailer: git-send-email 2.43.0 MIME-Version: 1.0 X-CM-TRANSID: _____wC3z6F9hlxq+TAUKA--.58193S2 X-Coremail-Antispam: 1Uf129KBjvdXoW7XryDJFy8ur18KFyxKF13twb_yoWxuwc_Ww 1Sqryagw48Wa9IgF1I9ws5Xryqkay7Way8Ar4jvF9Fgw1a93sxA3sYgF98Aa1qyrWFkrs3 Za95ZFZ3Ar4IqjkaLaAFLSUrUUUUjb8apTn2vfkv8UJUUUU8Yxn0WfASr-VFAUDa7-sFnT 9fnUUvcSsGvfC2KfnxnUUI43ZEXa7IU8y5l5UUUUU== X-Originating-IP: [39.187.244.72] X-CM-SenderInfo: p0ld0w5hqjzxldq6il2tof0z/xtbDAR5ydWpchn5CfgAA3q X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.9.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20260719_011140_292954_4091D296 X-CRM114-Status: UNSURE ( 6.29 ) 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. v2: - use CONFIG_STRICT_MODULE_RWX instead of CONFIG_ARCH_HAS_EXECMEM_ROX in PATCH 1/2 (per Nam Cao's review) 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 | 3 ++- arch/riscv/mm/init.c | 4 +++- 2 files changed, 5 insertions(+), 2 deletions(-) _______________________________________________ linux-riscv mailing list linux-riscv@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-riscv