From mboxrd@z Thu Jan 1 00:00:00 1970 From: Julien Grall Subject: Re: [PATCH v2 2/8] tools: arm: report an error if the guest RAM is too large Date: Fri, 25 Apr 2014 12:50:32 +0100 Message-ID: <535A4C08.6000108@linaro.org> References: <1398424945.18537.424.camel@kazak.uk.xensource.com> <1398424967-9306-2-git-send-email-ian.campbell@citrix.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii"; Format="flowed" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <1398424967-9306-2-git-send-email-ian.campbell@citrix.com> List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Sender: xen-devel-bounces@lists.xen.org Errors-To: xen-devel-bounces@lists.xen.org To: Ian Campbell , xen-devel@lists.xen.org Cc: ian.jackson@eu.citrix.com, tim@xen.org, stefano.stabellini@eu.citrix.com List-Id: xen-devel@lists.xenproject.org Hi Ian, On 25/04/14 12:22, Ian Campbell wrote: > Due to the layout of the guest physical address space we cannot support more > than 768M of RAM before overrunning the area set aside for the grant table. Due > to the presence of the magic pages at the end of the RAM region guests are > actually limited to 767M. > > Catch this case during domain build and fail gracefully instead of obscurely > later on. > > Signed-off-by: Ian Campbell > --- > This is the only patch in this series which I consider to be suitable for > backporting to Xen 4.4 I agree with you. Without this the guest can crash with weird error. For this patch: Acked-by: Julien Grall -- Julien Grall