From mboxrd@z Thu Jan 1 00:00:00 1970 From: Mukesh Rathor Subject: Re: [V1 PATCH 2/3] pvh: fix pirq path for pvh Date: Tue, 25 Feb 2014 12:44:59 -0800 Message-ID: <20140225124459.792471cf@mantra.us.oracle.com> References: <1393290237-28427-1-git-send-email-mukesh.rathor@oracle.com> <1393290237-28427-2-git-send-email-mukesh.rathor@oracle.com> <1393290237-28427-3-git-send-email-mukesh.rathor@oracle.com> <530C7048020000780011F0D9@nat28.tlf.novell.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: Received: from mail6.bemta4.messagelabs.com ([85.158.143.247]) by lists.xen.org with esmtp (Exim 4.72) (envelope-from ) id 1WIOsE-000837-Mv for xen-devel@lists.xenproject.org; Tue, 25 Feb 2014 20:45:06 +0000 In-Reply-To: <530C7048020000780011F0D9@nat28.tlf.novell.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: Jan Beulich Cc: xen-devel@lists.xenproject.org List-Id: xen-devel@lists.xenproject.org On Tue, 25 Feb 2014 09:28:24 +0000 "Jan Beulich" wrote: > >>> On 25.02.14 at 02:03, Mukesh Rathor > >>> wrote: > > Just like hvm, pirq eoi shared page is not there for pvh. pvh should > > not touch any pv_domain fields. > > While the latter is true, wasn't it that IRQ handling wise PVH is > using PV mechanisms? In which case the EOI map page would be of > interest, and rather than guarding the accesses you ought to move > the field out of pv_domain. It would be, but my proposals to move the fields out in earlier patches had been turned down by you. So, while I work on another solution, this would help. It's on my list to work on. As soon as dom0 pvh patches are in, I intend to work on fixmes. I don't understand very well whats going on with pirq eoi, so need to study it both in xen and linux, and focussing on one thing at a time really helps mortals like me :) ... thanks, Mukesh