Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754896Ab3DVKrF (ORCPT ); Mon, 22 Apr 2013 06:47:05 -0400 Received: from cam-admin0.cambridge.arm.com ([217.140.96.50]:57294 "EHLO cam-admin0.cambridge.arm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751216Ab3DVKrE (ORCPT ); Mon, 22 Apr 2013 06:47:04 -0400 Date: Mon, 22 Apr 2013 11:46:54 +0100 From: Will Deacon To: Sebastian Gottschall Cc: "linux-arm-kernel@lists.infradead.org" , "linux-kernel@vger.kernel.org" , marc.zyngier@arm.com, dave.martin@arm.com Subject: Re: arm: ARM_VIRT_EXT is not supported by all v7 platforms, so it should not be enabled by default Message-ID: <20130422104653.GA2572@mudshark.cambridge.arm.com> References: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.21 (2010-09-15) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 897 Lines: 21 On Fri, Apr 19, 2013 at 07:07:15PM +0100, Sebastian Gottschall wrote: > introduced in kernel 3.9 CONFIG_ARM_VIRT_EXT is default for all V7 arm > cpu's. this is wrong and breaks smp support on BCM4708 for example. > so keep it optional since no all v7 cpu's seem to support it. BCM4708 > for instance is a arm cortex-a9. please merge this into one of the next > patches. This was intentional, since ARM_VIRT_EXT shouldn't have any visible effect when selected on CPUs without the virtualisation extensions. If this is breaking SMP support, then there is a bug somewhere, so please can elaborate on the problems which you are seeing? Cheers, Will -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/