From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from pigeon.gentoo.org ([208.92.234.80] helo=lists.gentoo.org) by finch.gentoo.org with esmtp (Exim 4.60) (envelope-from ) id 1Qw5jh-0001Ro-TO for garchives@archives.gentoo.org; Wed, 24 Aug 2011 05:10:46 +0000 Received: from pigeon.gentoo.org (localhost [127.0.0.1]) by pigeon.gentoo.org (Postfix) with SMTP id AA47E21C0BC; Wed, 24 Aug 2011 05:10:32 +0000 (UTC) Received: from mail-pz0-f42.google.com (mail-pz0-f42.google.com [209.85.210.42]) by pigeon.gentoo.org (Postfix) with ESMTP id C542921C0BC for ; Wed, 24 Aug 2011 05:09:27 +0000 (UTC) Received: by pzk37 with SMTP id 37so236753pzk.1 for ; Tue, 23 Aug 2011 22:09:27 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :content-type; bh=he49HpS6iJ5JFoSHjNumKC7cxHCVF2p4If6CcJrhh9Q=; b=snRLQVs1GzbDYZbgNH9EqXxlgZ9S585g6/mmWJC21skNk/cfF6uFDm4BVWidOiia0W uoxNmTHqkKftjxmQ4NQIq/OHMU0ErWJ966nLKRgDD3iWiE8W6pQgojnEHHwAaHVGlwpm fTeS0OITtPiyQO7RXD1XiVAVOUVwF9Q5cUvqg= Precedence: bulk List-Post: List-Help: List-Unsubscribe: List-Subscribe: List-Id: Gentoo Linux mail X-BeenThere: gentoo-user@lists.gentoo.org Reply-to: gentoo-user@lists.gentoo.org MIME-Version: 1.0 Received: by 10.142.195.2 with SMTP id s2mr2607125wff.79.1314162567043; Tue, 23 Aug 2011 22:09:27 -0700 (PDT) Received: by 10.142.70.2 with HTTP; Tue, 23 Aug 2011 22:09:27 -0700 (PDT) In-Reply-To: References: Date: Wed, 24 Aug 2011 01:09:27 -0400 Message-ID: Subject: Re: [gentoo-user] CONFIG_IOMMU_SUPPORT??? From: Gregory Woodbury To: gentoo-user@lists.gentoo.org Content-Type: multipart/alternative; boundary=000e0cd14760fc5a1c04ab3950c2 X-Archives-Salt: X-Archives-Hash: bdfc81bfd4cb838690978396f8761467 --000e0cd14760fc5a1c04ab3950c2 Content-Type: text/plain; charset=UTF-8 On Wed, Aug 24, 2011 at 12:18 AM, Hilco Wijbenga wrote: > On 23 August 2011 20:38, Mark Knecht wrote: > > Hi all, > > Can someone point me toward somehow enabling CONFIG_IOMMU_SUPPORT? > > It is apparently a kernel config option no required by > > virtualbox-drivers but I'm not finding it in the 3.0.3 kernel. I > > suspect there's something else I need to enable before this option > > becomes available? Unfortunately I haven't been able to Google what I > > need to do to find it. > IOMMU_SUPPORT is a derived value that becomes set when any of the various IOMMU devices are enabled. I enabled the IBM "CALGARY" IOMMU and the AMD IOMMU to get the VBox build to stop complaining. I was also getting complaints about PCI_STUB support from VBox, but the running VMs don't need the vboxpcistub.ko driver to work. -- G.Wolfe Woodbury --000e0cd14760fc5a1c04ab3950c2 Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: quoted-printable

On Wed, Aug 24, 2011 at 12:18 AM, Hilco = Wijbenga <= hilco.wijbenga@gmail.com> wrote:
On 23 August 2011 20:38, Mark Knecht <markknecht@gmail.com> wrote:
> Hi all,
> =C2=A0 Can someone point me toward somehow enabling CONFIG_IOMMU_SUPPO= RT?
> It is apparently a kernel config option no required by
> virtualbox-drivers but I'm not finding it in the 3.0.3 kernel. I > suspect there's something else I need to enable before this option=
> becomes available? Unfortunately I haven't been able to Google wha= t I
> need to do to find it.

IOMMU_SUPPORT is a der= ived value that becomes set when any of the various IOMMU
devices are en= abled.=C2=A0 I enabled the IBM "CALGARY" IOMMU and the AMD IOMMU = to get the
VBox build to stop complaining.

I was also getting complaints about = PCI_STUB support from VBox, but the running VMs don't
need the vboxp= cistub.ko driver to work.

--
G.Wolfe Woodbury
=C2=A0
--000e0cd14760fc5a1c04ab3950c2--