From nobody Sun Feb 8 20:33:02 2026 Received: from m16.mail.163.com (m16.mail.163.com [117.135.210.2]) (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 9F69427FB35 for ; Thu, 15 Jan 2026 02:45:08 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=117.135.210.2 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1768445111; cv=none; b=Jc47hRu4rpGoMtziw6Pw/6XXoLHJBFv/IKfKLFZfUA8SVjR8B2S2+8vF9e/KZ5olnIdhZHuKlP4/lQudHhu5V9bdHdeOCek+xuOMpiElHjbya1E5UctZiCq5/FLB/lSv5xhLOGbwCmveGtxwGIiHM0Cqg0oQ9p4rHyem/1mMWiQ= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1768445111; c=relaxed/simple; bh=EbKfkObvFITDuJqXS218LcpddCLrRivjyoZZtU8h7wI=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=oTTAZiLyZqM3dH49t0yHzZPEgnVv8reOrVQlb/AAwpsS8miOuy1mnh5aiecWwuyCPnXBSveErdUo7N3zC8UbLBc7fuChSVluX8BnwK/fXya7bI6OEIKH/ur5woMVr3EhWNS5SheLJOmiM7ev8pJtk6bUKGmVQKSVSD2slQnozEY= 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=TFYyYYtB; arc=none smtp.client-ip=117.135.210.2 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="TFYyYYtB" 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=vA 4sG2LcbrHKYOPfRfHsAEkNum7WWXZhFvlb2/tyyv4=; b=TFYyYYtBiwIdA4AhIj OI27ipBY6bTZD7fnjgVPi2lLbHb5s5LAbNlh1yZ8qn0eM/7IndXz+ZTHkYpdx9SO LAvSyAD/Bo6RoWlqNsgVC+BkvqA7VJkqqhjbFtcG0XGQgz/HGxoTq4aaRyEiQmac /XClkkUEObqhczSmcbuRDDb2k= Received: from X13.domain.sensetime.com (unknown []) by gzsmtp4 (Coremail) with SMTP id PygvCgBHirCJVGhp+fTaLA--.16632S2; Thu, 15 Jan 2026 10:44:28 +0800 (CST) From: junan To: catalin.marinas@arm.com, will@kernel.org Cc: linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, oe-kbuild-all@lists.linux.dev, junan76@163.com, kernel test robot Subject: [PATCH v2] arm64: kconfig: Make STRICT_KERNEL_RWX visable. Date: Thu, 15 Jan 2026 10:34:18 +0800 Message-ID: <20260115023456.621586-2-junan76@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: quoted-printable X-CM-TRANSID: PygvCgBHirCJVGhp+fTaLA--.16632S2 X-Coremail-Antispam: 1Uf129KBjvJXoW7KrW8uFW3JF17JF18Zr4UXFb_yoW8CrW7pw n3uwnrJFW7Grn3JaykK3y3uF45Zan5Jay3WFW5C34jyrnrA34DuF9YvwnIvFWDX34Uu3yf ua4Sv3W2qw18XwUanT9S1TB71UUUUU7qnTZGkaVYY2UrUUUUjbIjqfuFe4nvWSU5nxnvy2 9KBjDUYxBIdaVFxhVjvjDU0xZFpf9x0pRVyxZUUUUU= X-CM-SenderInfo: pmxqt0ixw6il2tof0z/xtbC1A2sXmloVI0FzgAA34 Content-Type: text/plain; charset="utf-8" Make "STRICT_KERNEL_RWX" visable to menuconfig on arm64 platform. Breakpoints can not be set when using kgdb/kdb if "STRICT_KERNEL_RWX" equals to "y", but it has a default value "y" and is not visable in menuconfig on arm64. Link to kgdb/kdb doc: https://docs.kernel.org/process/debugging/kgdb.html Changes in v2: - Fix link error of "rodata_enabled" when allnoconfig is set - link to v1: https://lore.kernel.org/linux-arm-kernel/20260114013859.4981= 48-2-junan76@163.com/ Signed-off-by: junan Reported-by: kernel test robot Closes: https://lore.kernel.org/oe-kbuild-all/202601141630.sCPCgSYw-lkp@int= el.com/ --- arch/arm64/Kconfig | 2 ++ arch/arm64/mm/mmu.c | 4 ++++ 2 files changed, 6 insertions(+) diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig index 93173f0a09c7..cc3aaffa1e12 100644 --- a/arch/arm64/Kconfig +++ b/arch/arm64/Kconfig @@ -52,6 +52,8 @@ config ARM64 select ARCH_STACKWALK select ARCH_HAS_STRICT_KERNEL_RWX select ARCH_HAS_STRICT_MODULE_RWX + select ARCH_OPTIONAL_KERNEL_RWX if ARCH_HAS_STRICT_KERNEL_RWX + select ARCH_OPTIONAL_KERNEL_RWX_DEFAULT select ARCH_HAS_SYNC_DMA_FOR_DEVICE select ARCH_HAS_SYNC_DMA_FOR_CPU select ARCH_HAS_SYSCALL_WRAPPER diff --git a/arch/arm64/mm/mmu.c b/arch/arm64/mm/mmu.c index 8e1d80a7033e..4770204d9e22 100644 --- a/arch/arm64/mm/mmu.c +++ b/arch/arm64/mm/mmu.c @@ -1314,7 +1314,11 @@ void __init kpti_install_ng_mappings(void) =20 static pgprot_t __init kernel_exec_prot(void) { +#if defined(CONFIG_STRICT_KERNEL_RWX) || defined(CONFIG_STRICT_MODULE_RWX) return rodata_enabled ? PAGE_KERNEL_ROX : PAGE_KERNEL_EXEC; +#else + return PAGE_KERNEL_EXEC; +#endif } =20 static int __init map_entry_trampoline(void) --=20 2.43.0