From mboxrd@z Thu Jan 1 00:00:00 1970 From: catalin.marinas@arm.com (Catalin Marinas) Date: Tue, 24 Jul 2012 10:41:43 +0100 Subject: [RFC 01/23] ARM: LPAE: disable phys-to-virt patching on PAE systems In-Reply-To: <1343092165-9470-2-git-send-email-cyril@ti.com> References: <1343092165-9470-1-git-send-email-cyril@ti.com> <1343092165-9470-2-git-send-email-cyril@ti.com> Message-ID: <20120724094143.GB20132@arm.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org On Tue, Jul 24, 2012 at 02:09:03AM +0100, Cyril Chemparathy wrote: > From: Vitaly Andrianov > > The current phys-to-virt patching mechanism is broken on PAE machines with > 64-bit physical addressing. This patch disables the patching mechanism in > such configurations. It may be broken, I don't remember whether I tested this feature. What's the PHYS_OFFSET on your platform? Is it within the low 4GB range? -- Catalin From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753510Ab2GXJmV (ORCPT ); Tue, 24 Jul 2012 05:42:21 -0400 Received: from cam-admin0.cambridge.arm.com ([217.140.96.50]:42148 "EHLO cam-admin0.cambridge.arm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753313Ab2GXJmT (ORCPT ); Tue, 24 Jul 2012 05:42:19 -0400 Date: Tue, 24 Jul 2012 10:41:43 +0100 From: Catalin Marinas To: Cyril Chemparathy Cc: "linux-arm-kernel@lists.infradead.org" , "linux-kernel@vger.kernel.org" , "nico@linaro.org" , Will Deacon , Vitaly Andrianov Subject: Re: [RFC 01/23] ARM: LPAE: disable phys-to-virt patching on PAE systems Message-ID: <20120724094143.GB20132@arm.com> References: <1343092165-9470-1-git-send-email-cyril@ti.com> <1343092165-9470-2-git-send-email-cyril@ti.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1343092165-9470-2-git-send-email-cyril@ti.com> User-Agent: Mutt/1.5.20 (2009-06-14) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Tue, Jul 24, 2012 at 02:09:03AM +0100, Cyril Chemparathy wrote: > From: Vitaly Andrianov > > The current phys-to-virt patching mechanism is broken on PAE machines with > 64-bit physical addressing. This patch disables the patching mechanism in > such configurations. It may be broken, I don't remember whether I tested this feature. What's the PHYS_OFFSET on your platform? Is it within the low 4GB range? -- Catalin