Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755346Ab2KMQx0 (ORCPT ); Tue, 13 Nov 2012 11:53:26 -0500 Received: from smtp.citrix.com ([66.165.176.89]:58943 "EHLO SMTP.CITRIX.COM" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755282Ab2KMQxY (ORCPT ); Tue, 13 Nov 2012 11:53:24 -0500 X-IronPort-AV: E=Sophos;i="4.80,768,1344211200"; d="scan'208";a="44442869" Date: Tue, 13 Nov 2012 16:38:55 +0000 From: Stefano Stabellini X-X-Sender: sstabellini@kaball.uk.xensource.com To: Yinghai Lu CC: Thomas Gleixner , Ingo Molnar , "H. Peter Anvin" , Jacob Shin , Andrew Morton , Stefano Stabellini , Konrad Rzeszutek Wilk , "linux-kernel@vger.kernel.org" Subject: Re: [PATCH 28/46] x86, mm: Add pointer about Xen mmu requirement for alloc_low_pages In-Reply-To: <1352755122-25660-29-git-send-email-yinghai@kernel.org> Message-ID: References: <20121112193044.GA11615@phenom.dumpdata.com> <1352755122-25660-1-git-send-email-yinghai@kernel.org> <1352755122-25660-29-git-send-email-yinghai@kernel.org> User-Agent: Alpine 2.02 (DEB 1266 2009-07-14) MIME-Version: 1.0 Content-Type: text/plain; charset="US-ASCII" Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1140 Lines: 38 On Mon, 12 Nov 2012, Yinghai Lu wrote: > From: Stefano Stabellini > > Add link to commit 279b706 for more information > > Signed-off-by: Yinghai Lu ah, here it is, OK then > arch/x86/mm/init.c | 5 +++++ > 1 files changed, 5 insertions(+), 0 deletions(-) > > diff --git a/arch/x86/mm/init.c b/arch/x86/mm/init.c > index f5e0120..a7939ed 100644 > --- a/arch/x86/mm/init.c > +++ b/arch/x86/mm/init.c > @@ -25,6 +25,11 @@ unsigned long __meminitdata pgt_buf_top; > > static unsigned long min_pfn_mapped; > > +/* > + * Pages returned are already directly mapped. > + * > + * Changing that is likely to break Xen, see commit 279b706 for detail info. ^detailed > + */ > __ref void *alloc_low_pages(unsigned int num) > { > unsigned long pfn; > -- > 1.7.7 > -- 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/