From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from m16.mail.163.com (m16.mail.163.com [220.197.31.4]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 7FEF5366054 for ; Wed, 1 Jul 2026 10:29:03 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=220.197.31.4 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1782901750; cv=none; b=tNtnUZwlu9Ka0vyBItv62z9wZysVYfV5iIHIDJuezz4Inc4kKCbfEe06EA5Uu2AwP158GuH5fU1Y9//1SFndX3Ca9x5f3XepWeBOl5nPyvFwC4qHGYGEIVFtyoyDht6XsG2mZF+oNL1EIK62IbBXeyo9zucItH0hqeijCuhVr3M= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1782901750; c=relaxed/simple; bh=FNl1ipYTEf/oTXGfobnmmG3g34fS8piKCEH5P4Ni+z8=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=qJYqL3JSGopudBCOoqVG6lefHVYJcdCpa9XyfYgifApBmw9vsf9v2LgXx38QnY+P3UA0E2LuM2Nf7BPhoNtZUs/xdQ0SkpGV6dtXnZqtVaBVjNBNqwF8JygZStq6Bmj5Omp0plJGlrcaFDmHTIFZXT5RxaKCwXXymCJYdQ1SLhQ= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=163.com; spf=pass smtp.mailfrom=163.com; dkim=pass (1024-bit key) header.d=163.com header.i=@163.com header.b=QJiQl+Rn; arc=none smtp.client-ip=220.197.31.4 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=163.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=163.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=163.com header.i=@163.com header.b="QJiQl+Rn" 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=/J wselaR8mY1mClm5Tt418iCkr+E5uSdRucyEMGk4z0=; b=QJiQl+RnAr24f8LGOx RBmJPTrN8e/GJ/Z1WuzTJBlM2QtOUMr88ghXOLb2oHjWFsUdXR5EOMm6Mi5aDKXH cvuFhLdYSCAPwEonJipTU+OjF0G/zkMuJwh4K5v5oAErzxFdKbFjDXkMpX6Azz5i H922Fe5Dvcc0mKI/edoBBHGhI= Received: from Ubuntu.. (unknown []) by gzga-smtp-mtada-g0-2 (Coremail) with SMTP id _____wD3V0jH60Rq_FlzGw--.4936S2; Wed, 01 Jul 2026 18:28:24 +0800 (CST) From: Xiaofeng Yuan To: Paul Walmsley , Palmer Dabbelt , Albert Ou Cc: Alexandre Ghiti , Mark Brown , linux-riscv@lists.infradead.org, linux-kernel@vger.kernel.org, xiaofengmian@163.com Subject: [PATCH 0/2] riscv: fix kprobes on minimal kernel configs Date: Wed, 1 Jul 2026 10:28:20 +0000 Message-ID: <20260701102822.95459-1-xiaofengmian@163.com> X-Mailer: git-send-email 2.43.0 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-CM-TRANSID:_____wD3V0jH60Rq_FlzGw--.4936S2 X-Coremail-Antispam: 1Uf129KBjvdXoW7XryDJFy8ur18KFyxKF13twb_yoW3XFg_Cr 1SqryfKrWrWFZIgFy8Kws3Gryqk397WrW8Ar1UZF9Fgw17uwnxC3sakF1DA3Z2yryrtFs7 Zas5urWvkr4SqjkaLaAFLSUrUUUUjb8apTn2vfkv8UJUUUU8Yxn0WfASr-VFAUDa7-sFnT 9fnUUvcSsGvfC2KfnxnUUI43ZEXa7sRZAwI5UUUUU== X-CM-SenderInfo: p0ld0w5hqjzxldq6il2tof0z/xtbDAQjY22pE68jxNwAA3B 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. Xiaofeng Yuan (2): riscv: mm: make EXECMEM_KPROBES writable without ARCH_HAS_EXECMEM_ROX riscv: patch: skip fixmap mapping when kernel text is already writable Xiaofeng Yuan (2): riscv: mm: make EXECMEM_KPROBES writable without ARCH_HAS_EXECMEM_ROX 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(-) -- 2.43.0