From mboxrd@z Thu Jan 1 00:00:00 1970 From: Michael Abd-El-Malek Subject: Re: Vanilla Linux 64-bit paravirt guest support Date: Thu, 10 Apr 2008 00:14:36 -0400 Message-ID: <47FD942C.5040503@cmu.edu> References: <47FAF285.10103@cmu.edu> <47FBE3CF.4000107@goop.org> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <47FBE3CF.4000107@goop.org> List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Sender: xen-devel-bounces@lists.xensource.com Errors-To: xen-devel-bounces@lists.xensource.com To: Jeremy Fitzhardinge Cc: xen-devel , Eduardo Habkost List-Id: xen-devel@lists.xenproject.org Jeremy Fitzhardinge wrote: > Michael Abd-El-Malek wrote: >> Can someone tell me what the status of 64-bit paravirtualization >> support is in the vanilla Linux tree? It seems that 2.6.24 only has >> 32-bit PV support. And it seems that 2.6.25 will be getting 64-bit PV >> support. Will it be complete? > > No, 2.6.25 will not have 64-bit Xen support. I'm hoping it will be > ready for .26. Is 64-bit domU support available anywhere at the moment? For example, what is the status of the git://git.et.redhat.com/xen-pvops-64.git tree? I pulled that tree and tried building 64-bit Xen domU support (since this tree allows you to configure the kernel with that capability, unlike the vanilla Linux tree). But compilation failed in enlighten.c because xen_smp_ops isn't defined in x86_64. >> On a related note: is it possible to compile the PV network/block >> drivers for a HVM Linux guest with the newest kernels? Compilation >> failed and a previous message on the list says that you can't do >> that. The reason I'd want to do this is to let me run a 64-bit recent >> Linux kernel with PV drivers. > > No, we don't support that for the moment, though it would be a useful > thing to have. Is there a reason this wouldn't work, or is it just "scripting changes" that need to be done? Thanks, Mike