From mboxrd@z Thu Jan 1 00:00:00 1970 From: Sander Eikelenboom Subject: Re: Re: vt-d p7p55d evo Date: Mon, 5 Apr 2010 23:24:36 +0200 Message-ID: <989182286.20100405232436@eikelenboom.it> References: <4BB6B79D.3070305@triad.rr.com> <4BB82E5A.4030400@triad.rr.com> <69A986FE-7EE1-48AD-9829-717094C9A49A@xs4all.nl> Mime-Version: 1.0 Content-Type: text/plain; charset=iso-8859-15 Content-Transfer-Encoding: quoted-printable Return-path: In-Reply-To: <69A986FE-7EE1-48AD-9829-717094C9A49A@xs4all.nl> List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Sender: xen-devel-bounces@lists.xensource.com Errors-To: xen-devel-bounces@lists.xensource.com To: Mark Hurenkamp Cc: xen-devel@lists.xensource.com, listmail List-Id: xen-devel@lists.xenproject.org Hi Mark, I guess that's your problem, your cpu doesn't seem to support VT-D, see http://ark.intel.com/Product.aspx?id=3D42915 Both CPU, chipset and bios most support it ... -- Sander Sunday, April 4, 2010, 1:28:34 PM, you wrote: >> I'm still pretty new to Xen so it could very well be that I've =20 >> misunderstood the requirements for certain capabilities. I thought =20 >> one of the wiki's had stated that to pass through to an hvm guest =20 >> you have to have VT-d though. Is there something specific that I =20 >> which can indicate its status after boot? >> >> bios: 1207 >> cpu: i7 860 >> grub2: http://pastebin.ca/1856369 >> xm dmesg: http://pastebin.ca/1856370 >> xm info: http://pastebin.ca/1856372 >> hvm cfg: http://pastebin.ca/1856376 >> I think I compiled the linux kernel at xen/stable git commit =20 >> 221c4dbf86 given the timestamp in xm info (all done same time frame) > From your earlier mail, it was not clear wether you were indeed using = =20 > hvm, and that xen enabled vt-d properly. > From your xm dmesg, and xm info, it is clear that iommu is indeed =20 > enabled for you, something which i've not been able to achieve with my = =20 > board. > Could the CPU make a difference here? I'm on a i5 750, and notice you =20 > are using an i7 860.... > I'll see if i can do some more experiments with my setup, perhaps =20 > switching back a few changesets to 4.0-rc8. > I'm not sure if the kernel makes a difference, but i'll see if i can =20 > match your configuration as close as possible. > Thanks for your input! > Mark. --=20 Best regards, Sander mailto:linux@eikelenboom.it