From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jan Kiszka Subject: Re: PCI passthrough on Sony Vaio F11 laptop... Date: Sat, 13 Nov 2010 20:03:21 +0100 Message-ID: <4CDEE0F9.4070207@web.de> References: <4CDDCE40.9050001@brakkee.org> <4CDE746A.2090701@web.de> <4CDE79AF.4040002@brakkee.org> Mime-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="------------enig765C03BBE8D3E51576C24BA4" Cc: kvm@vger.kernel.org To: Erik Brakkee Return-path: Received: from fmmailgate02.web.de ([217.72.192.227]:47232 "EHLO fmmailgate02.web.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755061Ab0KMTD2 (ORCPT ); Sat, 13 Nov 2010 14:03:28 -0500 In-Reply-To: <4CDE79AF.4040002@brakkee.org> Sender: kvm-owner@vger.kernel.org List-ID: This is an OpenPGP/MIME signed message (RFC 2440 and 3156) --------------enig765C03BBE8D3E51576C24BA4 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable Am 13.11.2010 12:42, Erik Brakkee wrote: > Jan Kiszka wrote: >> >> What IRQ is the sky2 using when assigned to the host? Is it really a >> shared IRQ (I bet not as it should be using MSI)? >> >> Also, check in the libvirt logs what qemu-kvm reports on the console. >> >> Jan >> >> =20 > The output from 'cat /proc/interrupts' directly after boot is in the > sky2.interrupts. >=20 > The relevant line from the output is > 35: 0 0 0 0 1 =20 > 0 0 0 PCI-MSI-edge sky2@pci:0000:04:00.0 >=20 > So it looks like it is using MSI (although I don't have clue what that > means). MSIs are interrupts that, among other things, are not shared. So you can't run into conflicts. >=20 > The log file for my domain (the name is "other") is attached in "other.= log" > In the log file I see: >=20 > No IOMMU found. Unable to assign device "hostdev0" >=20 > Does this mean that I don't have IOMMU available on my laptop? The > output from 'dmesg | grep -i IOMMU' showed that Intel-IOMMI was enabled= , > but perhaps that means only that the IOMMU option is activated but not > that it is really functioning. >=20 > It must be either (1) Intel VT-d available on my laptop and there is > some configuration/software problem or (2) The output from dmesg is > misleading. What do you think? Strange, should work. I would suggest to post your full kernel log, maybe there is some enlightening message hidden. I don't think it is a problem of your kernel version, but I'm able to pass through devices on OpenSUSE 11.3 with kernel-desktop-2.6.36-90.1.x86_64 from their kernel repository. Jan --------------enig765C03BBE8D3E51576C24BA4 Content-Type: application/pgp-signature; name="signature.asc" Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename="signature.asc" -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.15 (GNU/Linux) Comment: Using GnuPG with SUSE - http://enigmail.mozdev.org/ iEYEARECAAYFAkze4P8ACgkQitSsb3rl5xRklwCg27qb2dKCzHxDA9A5RVuy1MJE SUAAoMBZGBvCXDwlFbJPu/EsdrcX02uI =+S1k -----END PGP SIGNATURE----- --------------enig765C03BBE8D3E51576C24BA4--