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 00561C4167B for ; Thu, 7 Dec 2023 13:37:35 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id 70BEC6B0089; Thu, 7 Dec 2023 08:37:35 -0500 (EST) Received: by kanga.kvack.org (Postfix, from userid 40) id 6BB7F6B008A; Thu, 7 Dec 2023 08:37:35 -0500 (EST) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 584736B008C; Thu, 7 Dec 2023 08:37:35 -0500 (EST) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (smtprelay0015.hostedemail.com [216.40.44.15]) by kanga.kvack.org (Postfix) with ESMTP id 478166B0089 for ; Thu, 7 Dec 2023 08:37:35 -0500 (EST) Received: from smtpin03.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay03.hostedemail.com (Postfix) with ESMTP id 1F7F2A0207 for ; 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imf15.hostedemail.com; dkim=none; dmarc=fail reason="SPF not aligned (relaxed), No valid DKIM" header.from=arm.com (policy=none); spf=pass (imf15.hostedemail.com: domain of cmarinas@kernel.org designates 145.40.73.55 as permitted sender) smtp.mailfrom=cmarinas@kernel.org ARC-Seal: i=1; s=arc-20220608; d=hostedemail.com; t=1701956253; a=rsa-sha256; cv=none; b=tH0w8fGdgokiity9yJWvhSZG/zKR7b4sCEdWCt7wjHASiEsr6oHY+NpAlS1uA9yWxIeWFN XCbm/aWg4p4DalY9L2UQWqjbSCvH9p2rM5rMfw++mqpSs48NHxAY1sZma5vQNjlRcfb00d dRXPR6W4NdGHFfFiqhGNxRoKvV+UUl4= Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by sin.source.kernel.org (Postfix) with ESMTP id C9594CE22DA; Thu, 7 Dec 2023 13:37:28 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 0FC8AC433C8; Thu, 7 Dec 2023 13:37:24 +0000 (UTC) Date: Thu, 7 Dec 2023 13:37:22 +0000 From: Catalin Marinas To: Joey Gouly Cc: linux-arm-kernel@lists.infradead.org, akpm@linux-foundation.org, aneesh.kumar@linux.ibm.com, broonie@kernel.org, dave.hansen@linux.intel.com, maz@kernel.org, oliver.upton@linux.dev, shuah@kernel.org, will@kernel.org, kvmarm@lists.linux.dev, linux-fsdevel@vger.kernel.org, linux-mm@kvack.org, linux-kselftest@vger.kernel.org, James Morse , Suzuki K Poulose , Zenghui Yu Subject: Re: [PATCH v3 04/25] arm64: disable trapping of POR_EL0 to EL2 Message-ID: References: <20231124163510.1835740-1-joey.gouly@arm.com> <20231124163510.1835740-5-joey.gouly@arm.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20231124163510.1835740-5-joey.gouly@arm.com> X-Rspamd-Queue-Id: DE93BA0020 X-Rspam-User: X-Rspamd-Server: rspam02 X-Stat-Signature: cjmaj3no44oqgg8ibfr8gsuxprrdq5b8 X-HE-Tag: 1701956252-244003 X-HE-Meta: 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 lMmqQEp/ 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 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: List-Subscribe: List-Unsubscribe: On Fri, Nov 24, 2023 at 04:34:49PM +0000, Joey Gouly wrote: > Allow EL0 or EL1 to access POR_EL0 without being trapped to EL2. > > Signed-off-by: Joey Gouly > Cc: Catalin Marinas > Cc: Will Deacon Acked-by: Catalin Marinas