From mboxrd@z Thu Jan 1 00:00:00 1970 Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.remote-ip=217.140.110.172 ARC-Seal: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; cv=none; t=1794410953; b=qsDZ7S2SiVrZQRTHJkUBnE/Q8y5p4d6gxxb/HF8T5nf04aIpGp/B8/qkvkZHeRYoWclJ /zOmVUviyPpD3JBwTFP/PGHnVEv8npVEzme8mJODxJqvpQfCn8VrQ9PcosgJ1hI/24odZ OhGBNT2qZHu/j8WIwfqunxLKmpQps50f7g0XwTWFRUkffHGwX+io+1cjHUljlnSlMNnLX jS2QQvJkKFeOw8nV/Zp9cRxvjKaWUl25p3qwwEJQ/I/87/feHH1TVO7K7DwJcAlDutUpn IGWmV/nQfFfV/VXOCOifvgFkbghHM9YXldVw/YrrsLcKFQ5V+3tRmPHBbc+9OtVe0yg== ARC-Message-Signature: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; c=relaxed/relaxed; t=1794410953; h=DMARC-Filter:Received:Received:DKIM-Signature:Message-ID:Date: MIME-Version:User-Agent:Subject:To:Cc:References:From: Content-Language:In-Reply-To:Content-Type:Content-Transfer-Encoding; bh=zx9iLP78IiBq1ALzjHVMZmBMtAYpZpkd8prlcsOB6hg=; b=QGlpoSd3Ix465KlcCb7Ezzj7L4iUYkuxEkaKOv6U7B1bw9iXZQBWhaFuJ1tUnDLIY9A/ uyj3Li50nyYxFNVBHph6AWOZJN8ZGfal/mTWANRyzsTSBaPs7YAjK258MbrpZjfH5ovpx j9whNW5wTEMDWhFcC0exkDzyRRx6Ea8bVJ4PAdYVaFp8c+FUHuSFFS/XmVPqPEkA9BY7x MqkybolwSHFiBfkXM7Ckl8DVRkmVKJSQwfQ0R2Zk0HCn3evFjaOopTnxvtQ2M6iia4oFr 6OBZc4lNjn2/8+ndajcN1oR9NqMvttEPTtgkIir/9PrOohZgD4sIZUdzeKSZYJ5tenw== ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass header.from=arm.com; spf=pass smtp.mailfrom=arm.com; dkim=pass header.d=arm.com header.i=@arm.com header.a=rsa-sha256 header.s=foss header.b=Dhj0+Yym; arc=none smtp.remote-ip=217.140.110.172 Received: from foss.arm.com (foss.arm.com [217.140.110.172]) by smtp.subspace.kernel.org (Postfix) with ESMTP id 1A408606A332; Wed, 11 Nov 2026 15:29:12 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.2 smtp.subspace.kernel.org 1A408606A332 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=arm.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=arm.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=arm.com header.i=@arm.com header.a=rsa-sha256 header.s=foss header.b=Dhj0+Yym Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 4C9A61576; Wed, 11 Nov 2026 07:29:09 -0800 (PST) Received: from [10.43.20.72] (e126510-lin.lund.arm.com [10.43.20.72]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id A40E73F632; Wed, 11 Nov 2026 07:29:05 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=arm.com; s=foss; t=1794410952; bh=zx9iLP78IiBq1ALzjHVMZmBMtAYpZpkd8prlcsOB6hg=; h=Date:Subject:To:Cc:References:From:In-Reply-To:From; b=Dhj0+YymHc7rFomknPwPRmnpBiVc9HeX4e1Mrc54aUxPNZzLyPVAjsbvoz7F/WA5c x/6gWKxQMKSaONFtPfoPEoqkOwozaexXi53y72L4XOIUfLKIaabfuCO6VO8rtFgrHt 4l+2j1iAJMYNQaTu2anzXCelavKQ28MV+LNM1n5g= Message-ID: <0b29393f-bb84-4df1-a699-f7afcb50f2e8@arm.com> Date: Wed, 11 Nov 2026 16:29:02 +0100 X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH RFC v10 22/22] mm: Add basic tests for kpkeys_hardened_pgtables To: Mark Brown Cc: linux-hardening@vger.kernel.org, Andrew Morton , Ard Biesheuvel , Andy Lutomirski , Catalin Marinas , Dave Hansen , "David Hildenbrand (Arm)" , Jann Horn , Jeff Xu , Joey Gouly , Kees Cook , Linu Cherian , Linus Walleij , Marc Zyngier , Matthew Wilcox , Maxwell Bland , "Mike Rapoport (IBM)" , Peter Zijlstra , Pierre Langlois , =?UTF-8?Q?Pierre-Cl=C3=A9ment_Tosi?= , Quentin Perret , Rick Edgecombe , Ryan Roberts , Vlastimil Babka , Will Deacon , Yang Shi , Yeoreum Yun , linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-mm@kvack.org, x86@kernel.org, Ira Weiny , Lorenzo Stoakes , Thomas Gleixner References: <20261109-kpkeys-v10-0-aa6c4d9603bc@arm.com> <20261109-kpkeys-v10-22-aa6c4d9603bc@arm.com> <2d13fbb7-b5b4-446e-8709-5b43349ff19a@sirena.org.uk> <9e59fd71-97e7-422c-a7dd-bc23c6e6a852@arm.com> <717cccfe-81d6-4e09-a466-5361ae27776f@sirena.org.uk> From: Kevin Brodsky Content-Language: en-GB In-Reply-To: <717cccfe-81d6-4e09-a466-5361ae27776f@sirena.org.uk> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit On 10/11/2026 12:24, Mark Brown wrote: > On Tue, Nov 10, 2026 at 10:01:36AM +0100, Kevin Brodsky wrote: > >> Do you mean adding the dependency KPKEYS_HARDENED_PGTABLES=y to >> tools/testing/kunit/configs/all_tests.config? Indeed that would only be >> meaningful on arm64 (for now). That said it wouldn't hurt other >> architectures, so happy to add it there if you think that's worth it. > Yes, or something like that - unfortunately KUnit checks to see if the > config options appear in the configuration so something that vanishes on > other architectures causes issues. Alright, I guess there's not much we can do then, short of creating arch-specific fragments. > Perhaps the default for the config > option ought to depend on KUNIT_ALL_TESTS? Not sure I'm following, the config already has default KUNIT_ALL_TESTS? - Kevin