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 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 smtp.lore.kernel.org (Postfix) with ESMTPS id 90708C05027 for ; Tue, 14 Mar 2023 18:20:00 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Subject:Cc:To:From:Message-ID:Date:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=cYryj3EYT9WJYTQjZ0a5r/qIl7T0iGaUk1KdZLV6ZPo=; b=0Bj2JFdvPURosz cGR/UdcCV2Z9XeOo+AGLGFah2780ETelpizrHjy4S9TKstdQuzoLOf/6Tcey8UJlJtTkBm8Ok6jFk oCJxyYBzCG2LJoZCbV+GEYkWoYpa9SSPqEMFx1QME45MvdtAltaUGeDFmZEgC+wSW2rzccqlq5azK p7oVDF8FP4s3dJrUBJQJbeBxrIaN7vlt/PyoxiCIYmSaWy9E7kJlzE0REq1BVhl5XonXZcrJORgWw OfpPAApjIW7oblbdBt9wCIpdK6oekGxujWg3QcBqyj6k8QMSJZh+3lAr2q27eOjnJYLyTDIkD4hjw tjOWQHHncihRIvCZG0vw==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.96 #2 (Red Hat Linux)) id 1pc9Eh-00B9wE-2Q; Tue, 14 Mar 2023 18:18:59 +0000 Received: from dfw.source.kernel.org ([139.178.84.217]) by bombadil.infradead.org with esmtps (Exim 4.96 #2 (Red Hat Linux)) id 1pc9Ed-00B9v6-2j for linux-arm-kernel@lists.infradead.org; Tue, 14 Mar 2023 18:18:58 +0000 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 dfw.source.kernel.org (Postfix) with ESMTPS id 78672618B8; Tue, 14 Mar 2023 18:18:53 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id DFBFFC4339B; Tue, 14 Mar 2023 18:18:52 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1678817932; bh=My0qKjylZkeXmptIjgNvTHL0FPeH1/JBYiGK3HqA+Ko=; h=Date:From:To:Cc:Subject:In-Reply-To:References:From; b=LBrhjt/XIWz1B2ALxXNBkHMWdd+HVFNDEtyPA+f2BaFSFRqTYBmyU8cKcdAfCqe3o ZPwJMhoj5nEI4lIOpk5l2kDHyNBPCRzAz41YFTk0zEoGA9zAxbajM0mUnbML70SbsX z9ziiKEEPev+zLa1wUUF/+flhVH34ajRxeLJ/PmAEwbzs1VKudgPyNfK0o8Z2wvrWK E9M8psEg53FsIX/eVsvzSKAa2//TGt3ecb+citG3qrDW5Z8USVaxxzXwY5Rm4qZ7R6 KxbCTyVdO3jFaLH98SCYGKXcABFZTXJLJwoaaHd+aS3mJXQ2fxmUz/yvx/2KdVbrB3 I2l1bGz6f4JHw== Received: from sofa.misterjones.org ([185.219.108.64] helo=goblin-girl.misterjones.org) by disco-boy.misterjones.org with esmtpsa (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.95) (envelope-from ) id 1pc9EY-0003h6-EE; Tue, 14 Mar 2023 18:18:50 +0000 Date: Tue, 14 Mar 2023 18:18:50 +0000 Message-ID: <86edprxkl1.wl-maz@kernel.org> From: Marc Zyngier To: Colton Lewis Cc: kvmarm@lists.linux.dev, kvm@vger.kernel.org, linux-arm-kernel@lists.infradead.org, james.morse@arm.com, suzuki.poulose@arm.com, oliver.upton@linux.dev, yuzenghui@huawei.com, ricarkol@google.com, sveith@amazon.de, dwmw2@infradead.org Subject: Re: [PATCH 15/16] KVM: arm64: selftests: Augment existing timer test to handle variable offsets In-Reply-To: References: <86o7owyj0a.wl-maz@kernel.org> User-Agent: Wanderlust/2.15.9 (Almost Unreal) SEMI-EPG/1.14.7 (Harue) FLIM-LB/1.14.9 (=?UTF-8?B?R29qxY0=?=) APEL-LB/10.8 EasyPG/1.0.0 Emacs/28.2 (aarch64-unknown-linux-gnu) MULE/6.0 (HANACHIRUSATO) MIME-Version: 1.0 (generated by SEMI-EPG 1.14.7 - "Harue") X-SA-Exim-Connect-IP: 185.219.108.64 X-SA-Exim-Rcpt-To: coltonlewis@google.com, kvmarm@lists.linux.dev, kvm@vger.kernel.org, linux-arm-kernel@lists.infradead.org, james.morse@arm.com, suzuki.poulose@arm.com, oliver.upton@linux.dev, yuzenghui@huawei.com, ricarkol@google.com, sveith@amazon.de, dwmw2@infradead.org X-SA-Exim-Mail-From: maz@kernel.org X-SA-Exim-Scanned: No (on disco-boy.misterjones.org); SAEximRunCond expanded to false X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230314_111857_108471_7FD78B6F X-CRM114-Status: GOOD ( 15.27 ) 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: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On Tue, 14 Mar 2023 17:47:01 +0000, Colton Lewis wrote: > > I'll be looking at it and will keep in mind your questions about my > hardware should I find any issues. Yes it has ECV and CNTPOFF but no I > didn't try turning it off for this because my issue occured only when > setting a physical offset and that can't be done without ECV. And yet this is exactly what these patches do: allow setting a physical offset without ECV+CNTPOFF. CNTPOFF is only a performance optimisation. It could be that my handling of CNTPOFF is buggy, or that your HW is less than stellar, or both. Testing the various combinations would certainly help. M. -- Without deviation from the norm, progress is not possible. _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel