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 kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by smtp.lore.kernel.org (Postfix) with ESMTP id 415F8C43219 for ; Wed, 9 Nov 2022 13:35:12 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id 8D1D46B0072; Wed, 9 Nov 2022 08:35:11 -0500 (EST) Received: by kanga.kvack.org (Postfix, from userid 40) id 882018E0001; Wed, 9 Nov 2022 08:35:11 -0500 (EST) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 749636B0074; Wed, 9 Nov 2022 08:35:11 -0500 (EST) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (smtprelay0013.hostedemail.com [216.40.44.13]) by kanga.kvack.org (Postfix) with ESMTP id 670696B0072 for ; Wed, 9 Nov 2022 08:35:11 -0500 (EST) Received: from smtpin25.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay02.hostedemail.com (Postfix) with ESMTP id 2F652120B0A for ; Wed, 9 Nov 2022 13:35:11 +0000 (UTC) X-FDA: 80114000022.25.D1256DA Received: from ams.source.kernel.org (ams.source.kernel.org [145.40.68.75]) by imf21.hostedemail.com (Postfix) with ESMTP id 7EC2D1C0019 for ; Wed, 9 Nov 2022 13:35:05 +0000 (UTC) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ams.source.kernel.org (Postfix) with ESMTPS id B472DB81EBC; Wed, 9 Nov 2022 13:34:03 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id CC9CEC433C1; Wed, 9 Nov 2022 13:33:58 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1668000842; bh=iLOLzZH3lZ0qvtTlUeIyrFI4l/lH4TDEVH11XOog/eE=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=omUyaOtEQPiBhzHY1L9VpnHLIuaVkl0eYg9QuoErXUGMd2VUn0mOwLqybB9km4gvd rqJmvCfhlTtwp4/s9hNOzyXErsnghwrNr8wY0DoAk3d+902p1IEeBF7SoP0DJIEvk3 13IbKN562xfCr/xkoX/7c9jFUlRXseeoTkUx00AaAQJP6iSl6GUpjNXknwRpGMAJrm i3zVBOS2PraWOAC5F3q6rlHBIBg+D/HUhYwceoEL0vkE5MnrE/nx8LPEShMo7wDq5D T+fJiE0kcX/MrnjUBJOLBg7ZGhsElu+u+jCaUH2PZ0cwFjWnAA+OE9UaFiHtTU46nm cDmPqvckggbcg== Date: Wed, 9 Nov 2022 13:33:55 +0000 From: Mark Brown To: Joey Gouly Cc: Catalin Marinas , Andrew Morton , Lennart Poettering , Zbigniew =?utf-8?Q?J=C4=99drzejewski-Szmek?= , Alexander Viro , Kees Cook , Szabolcs Nagy , Jeremy Linton , Topi Miettinen , linux-mm@kvack.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linux-abi-devel@lists.sourceforge.net, nd@arm.com, shuah@kernel.org Subject: Re: [PATCH v1 2/2] kselftest: vm: add tests for memory-deny-write-execute Message-ID: References: <20221026150457.36957-1-joey.gouly@arm.com> <20221026150457.36957-3-joey.gouly@arm.com> <20221108173303.GA53007@e124191.cambridge.arm.com> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha512; protocol="application/pgp-signature"; boundary="PkmQYXH0bfQF8a57" Content-Disposition: inline In-Reply-To: <20221108173303.GA53007@e124191.cambridge.arm.com> X-Cookie: Sign here without admitting guilt. ARC-Seal: i=1; s=arc-20220608; d=hostedemail.com; t=1668000909; a=rsa-sha256; cv=none; b=JuGPHIemINzqwfYruABfNMoQecFPYawB5yd2xQqSR2yIwXyiiVbUWIfJ/+g1FW9MOh9Afb t7N8VzvALnCCJgNY25RTzEX8m/0hxV7BE+j9x/ymxb5BLUD0tTCYPyFZEm2nXLc1mxnmCM XTsu7wlLtBMa7pvMal3GeylVsreow1E= ARC-Authentication-Results: i=1; imf21.hostedemail.com; dkim=pass header.d=kernel.org header.s=k20201202 header.b=omUyaOtE; dmarc=pass (policy=none) header.from=kernel.org; spf=pass (imf21.hostedemail.com: domain of broonie@kernel.org designates 145.40.68.75 as permitted sender) smtp.mailfrom=broonie@kernel.org ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=hostedemail.com; s=arc-20220608; t=1668000909; h=from:from:sender:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:cc:mime-version:mime-version: content-type:content-type:content-transfer-encoding: in-reply-to:in-reply-to:references:references:dkim-signature; bh=HkXaflzyg+oVVmJg6M+z+ev1r3Q6HTWk4ikvNuybaqY=; b=dB+enW2L3Xz0qhnJ0/q8Zt4HDRh6U5VCESyu0AgmlGH+SyGrt/vTa+Xd2Lfm9wMBXhrSSZ ShSKXha2C7v+jIE/8X++YtNBFRJQHunp6BxRP5WCeGFvtmdRnOX0OYuH8y2rNsgi2nO2Qc Hrr++JV/FE8mRlvhJPt+BgyUieOHZvA= X-Rspamd-Queue-Id: 7EC2D1C0019 Authentication-Results: imf21.hostedemail.com; dkim=pass header.d=kernel.org header.s=k20201202 header.b=omUyaOtE; dmarc=pass (policy=none) header.from=kernel.org; spf=pass (imf21.hostedemail.com: domain of broonie@kernel.org designates 145.40.68.75 as permitted sender) smtp.mailfrom=broonie@kernel.org X-Rspam-User: X-Rspamd-Server: rspam01 X-Stat-Signature: cz69dpejuccitdz1dojfm5gtnstdnqn4 X-HE-Tag: 1668000905-984520 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: --PkmQYXH0bfQF8a57 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline On Tue, Nov 08, 2022 at 05:33:03PM +0000, Joey Gouly wrote: > On Fri, Oct 28, 2022 at 06:03:18PM +0100, Mark Brown wrote: > > On Wed, Oct 26, 2022 at 04:04:57PM +0100, Joey Gouly wrote: > > > +#ifdef __aarch64__ > > > +#define PROT_BTI 0x10 /* BTI guarded page */ > > > +#endif > > We should get this from the kernel headers shouldn't we? We generally > > rely on things getting pulled in from there rather than locally > > defining. > I believe the mman.h included is from the toolchain, not the kernel's uapi headers. > The toolchain I was using didn't have PROT_BTI defined in its mman.h I'd expect that whatever we're doing in the build process ought to be overriding the default headers provided by the toolchain, that's kind of the point here... --PkmQYXH0bfQF8a57 Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iQEzBAABCgAdFiEEreZoqmdXGLWf4p/qJNaLcl1Uh9AFAmNrrEIACgkQJNaLcl1U h9Dd2Qf+JstBgiUB9xskBNs/qV0yCbAwDcm1yxj1hcr7EBTB6UpqUs0dFMDc7viS tGVkyALj5WpqjA7o5D8zc+LMhA5cYPNZwNwuXm0DBcHp51LrlC9REsBLihDvOLDh S+wOnXfoajkP5Ujt2yRcwPufZ7tQ5z/SZJcy9LhffgLy/fC9cYiYviLakrw1P3Ua 6nm3muwCUaXteqgQHzduoJe7DXTOmROICv1r6yHSIwLHMIELEFAA89rHgIwpGqH/ UvqiB/v35R63DufGRHFedDk01tG5ZGe7wm7P9+1jlDVSECMJGI4l2MZyfn/iEekW +FVctvLpNpeb4nlV98EwvIx+OtnM+Q== =hO+N -----END PGP SIGNATURE----- --PkmQYXH0bfQF8a57--