From mboxrd@z Thu Jan 1 00:00:00 1970 From: Ian Campbell Subject: Re: (v2) Design proposal for RMRR fix Date: Wed, 14 Jan 2015 12:17:58 +0000 Message-ID: <1421237878.19103.244.camel@citrix.com> References: <54B3A71002000078000538E1@mail.emea.novell.com> <54B3AB380200007800053917@mail.emea.novell.com> <54B3AE8802000078000539B7@mail.emea.novell.com> <54B515E6020000780005444A@mail.emea.novell.com> <54B54D48020000780005473E@mail.emea.novell.com> <54B540AA.1010905@eu.citrix.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Sender: xen-devel-bounces@lists.xen.org Errors-To: xen-devel-bounces@lists.xen.org To: "Tian, Kevin" Cc: "wei.liu2@citrix.com" , "stefano.stabellini@eu.citrix.com" , George Dunlap , "tim@xen.org" , "ian.jackson@eu.citrix.com" , "xen-devel@lists.xen.org" , Jan Beulich , "Zhang, Yang Z" , "Chen, Tiejun" List-Id: xen-devel@lists.xenproject.org On Wed, 2015-01-14 at 08:06 +0000, Tian, Kevin wrote: > - RMRRs conflicting with guest BIOS in <1MB area, as an example of > hard conflicts OOI what is the (estimated) probability of such an RMRR existing which doesn't already conflict with the real host BIOS? Host BIOSes are generally large compared to the guest BIOS, but with the amount of decompression and relocation etc they do I don't know how much of them generally remains in the <1MB region. Ian.