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 X-Spam-Level: X-Spam-Status: No, score=-11.2 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,INCLUDES_CR_TRAILER,MAILING_LIST_MULTI,SPF_HELO_NONE, SPF_PASS,URIBL_BLOCKED,USER_AGENT_SANE_1 autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id C4696C4338F for ; Tue, 24 Aug 2021 15:55:51 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 858C8611C9 for ; Tue, 24 Aug 2021 15:55:51 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.1 mail.kernel.org 858C8611C9 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=kernel.org Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:Content-Type: List-Subscribe:List-Help:List-Post:List-Archive:List-Unsubscribe:List-Id: In-Reply-To:MIME-Version:References:Message-ID:Subject:Cc:To:From:Date: Reply-To:Content-Transfer-Encoding:Content-ID:Content-Description:Resent-Date :Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=aT8u4mrAW62P6R6FMH3ey+MXgkwADz10d06PH2V1L14=; b=w9DyhQeNWiorVbnxFa4cD2DLhu iqhoZ0tTJATf08H/2AdEZYJ3xu5h8FRJZRRmYnOKpc8lBjdNMlAM4SPoN5toXHYT0+yTORFkxDy7U 0YQFRL+3HkAvjx4qd4ISsR4jOB5dlTEy+L7HJGkTgqkT67QjPoaYbfBrJ0ybisA07hY9bQDv2F9SI dFidX2uZHr+P4nsILMLBN1Lg1M4VMKbp5DygyOoNPCEOiLd3SgzWKDZwlQX9oRGp/rwg+mpLXpLLk gjpLVS3OkS4SoQNrxA32MRXklX29Oc785qYW/3TRtQQ3pbRd+mIaZpcTzaz9WY9+G79WeJVqpJPFz t/SDXTjA==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1mIYkA-003oD8-OO; Tue, 24 Aug 2021 15:53:42 +0000 Received: from mail.kernel.org ([198.145.29.99]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1mIYk7-003oCe-NA for linux-arm-kernel@lists.infradead.org; Tue, 24 Aug 2021 15:53:40 +0000 Received: by mail.kernel.org (Postfix) with ESMTPSA id BD745611C8; Tue, 24 Aug 2021 15:53:38 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1629820419; bh=S/+dn5ZBf/rML65m4XV8wU/VMONHlR/+MQQqXYZkqgU=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=KfeVCFFuBeoTUCsw1Kix4Dpc+24YZ5NVlYR4yZmIinQnDASuOVIebwHtoHFWpQUua 7FDKLN5cH+BfWhcZhUfdQs5D6iJbwxoUG0Hm3NMJ9NWDOffP6TFS3QCmjNlKjF/Txa AQYc0JOG1uNyumVsXjynz9dRpi3yPM8UFp/y2bcUnNbeCxxmN3e92Rsmzd82ip1FkT qjxctXTRKKRsSHnGgJ1o+Oxgq21ggtz99A1CSUx2Oz93ju7y8aRymaulMgFe69CAGv 4PB/FpmIR3cCiM5OMxBZg4tewwZXZ3dT6sAmSXbJvvzyktqRGvzmKYATQvVkdF4YJs 7/NggtmaC1K1w== Date: Tue, 24 Aug 2021 16:53:12 +0100 From: Mark Brown To: Alexandru Elisei Cc: catalin.marinas@arm.com, will@kernel.org, maz@kernel.org, james.morse@arm.com, suzuki.poulose@arm.com, linux-arm-kernel@lists.infradead.org, kvmarm@lists.cs.columbia.edu Subject: Re: [PATCH v2] arm64: Do not trap PMSNEVFR_EL1 Message-ID: <20210824155312.GD4393@sirena.org.uk> References: <20210824154523.906270-1-alexandru.elisei@arm.com> MIME-Version: 1.0 In-Reply-To: <20210824154523.906270-1-alexandru.elisei@arm.com> X-Cookie: Sentient plasmoids are a gas. User-Agent: Mutt/1.10.1 (2018-07-13) X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20210824_085339_811529_A1097DF5 X-CRM114-Status: GOOD ( 10.25 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: multipart/mixed; boundary="===============7603795256952323749==" Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org --===============7603795256952323749== Content-Type: multipart/signed; micalg=pgp-sha512; protocol="application/pgp-signature"; boundary="GyRA7555PLgSTuth" Content-Disposition: inline --GyRA7555PLgSTuth Content-Type: text/plain; charset=us-ascii Content-Disposition: inline On Tue, Aug 24, 2021 at 04:45:23PM +0100, Alexandru Elisei wrote: > Commit 31c00d2aeaa2 ("arm64: Disable fine grained traps on boot") zeroed > the fine grained trap registers to prevent unwanted register traps from > occuring. However, for the PMSNEVFR_EL1 register, the corresponding > HDFG{R,W}TR_EL2.nPMSNEVFR_EL1 fields must be 1 to disable trapping. Set > both fields to 1 if FEAT_SPEv1p2 is detected to disable read and write > traps. Reviewed-by: Mark Brown --GyRA7555PLgSTuth Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iQEzBAABCgAdFiEEreZoqmdXGLWf4p/qJNaLcl1Uh9AFAmElFecACgkQJNaLcl1U h9CEkAf/aKONR9MrgUCx5/TwTo/XLS84ZwikykFHKlvZAE7ttsl0qmqxnOMkW8E3 DACgUHB+eqDA9eXbF0KDo3fj9T12aBKRm4NafiepudpKpPKyP5D/2YACB4jbUAP/ Ov+nLv2IzSd8VmqTjzX70C81XFzsAh9pbkdLJp3qPOCSX30b0Zg1J07TfCOUiPH0 yIJjlcqEsPcq+eRJT3AHaik017fbSjl9Kk+mV/BEz1m+hfaexCcXR8poNQFmxghp KIsdEW8M25qW+JKbFU1+WQIIh8dAPWl8R1rzZWbY7YOO+2ExawRZ3PjedYoAgpOb Zzkh8t0pygHbOgfPYr+hpNwrbn3ZfA== =cXNj -----END PGP SIGNATURE----- --GyRA7555PLgSTuth-- --===============7603795256952323749== Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Disposition: inline _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel --===============7603795256952323749==--