From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Jan Beulich" Subject: Re: [PATCH v3 07/32] xen/x86: fix arch_set_info_guest for HVM guests Date: Fri, 24 Jul 2015 06:41:33 -0600 Message-ID: <55B24E9D02000078000952B0@prv-mh.provo.novell.com> References: <1435923310-9019-1-git-send-email-roger.pau@citrix.com> <1435923310-9019-8-git-send-email-roger.pau@citrix.com> <55A3E0F102000078000903B5@mail.emea.novell.com> <55B0C100.6000308@citrix.com> <55B0EC520200007800094842@prv-mh.provo.novell.com> <1437651718.19412.92.camel@citrix.com> <55B103DD.4030901@citrix.com> <55B125440200007800094BD2@prv-mh.provo.novell.com> <55B10CDB.5010708@citrix.com> <1437667259.24746.12.camel@citrix.com> <55B11316.2000201@citrix.com> <55B130420200007800094CB8@prv-mh.provo.novell.com> <55B11CBE.8050704@citrix.com> <55B1208C.9090207@citrix.com> <55B211D70200007800094FCF@prv-mh.provo.novell.com> <55B20C9D.5070708@citrix.com> <55B21D47.4010109@citrix.com> <55B22647.7040301@citrix.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: Received: from mail6.bemta5.messagelabs.com ([195.245.231.135]) by lists.xen.org with esmtp (Exim 4.72) (envelope-from ) id 1ZIcIC-0000OX-Rx for xen-devel@lists.xenproject.org; Fri, 24 Jul 2015 12:41:36 +0000 In-Reply-To: <55B22647.7040301@citrix.com> Content-Disposition: inline List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Sender: xen-devel-bounces@lists.xen.org Errors-To: xen-devel-bounces@lists.xen.org To: =?UTF-8?Q?Roger=20Pau=20Monn=C3=A9?= Cc: Ian Campbell , Andrew Cooper , David Vrabel , xen-devel@lists.xenproject.org, Boris Ostrovsky List-Id: xen-devel@lists.xenproject.org >>> On 24.07.15 at 13:49, wrote: > El 24/07/15 a les 13.11, Andrew Cooper ha escrit: >> To start straight in 64bit, you need gdtr and cs as a minimum >> >> With that in mind, room for each of the task registers, and segment >> selectors. > > I was planning to say that on both 32 and 64 bits we start with a flat > GDT (like we do for the BSP). You'd have to explain what "flat GDT" actually is. There are flat segments, but I'm unaware of flat descriptor tables. Jan