From mboxrd@z Thu Jan 1 00:00:00 1970 From: Joop Boonen Subject: Re: IOMMU and AMD 890fx Date: Sat, 26 Jun 2010 22:49:17 +0200 Message-ID: <4C2667CD.9030200@web.de> References: <3399D2269986104B959D31B7E919313C06E2BD8E@SAUSEXMBP01.amd.com> <4410545273.20100510083852@eikelenboom.it> <571239012.20100603101930@eikelenboom.it> <1857fd65263c9155e5f307f3b7e329d0.squirrel@www.boonen.name> <1807175740.20100603112310@eikelenboom.it> <20100603112649.GG11162@8bytes.org> <4C079729.8030502@amd.com> <20100610194947.17e0f6ad@ado-gentoo> <4C113911.9030005@amd.com> <20100610201527.61351484@ado-gentoo> <4C160DBF.8030701@jkg-it-services.de> <4C163371.7090809@amd.com> <4C17F2B4.7040208@web.de> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable Return-path: In-Reply-To: <4C17F2B4.7040208@web.de> List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Sender: xen-devel-bounces@lists.xensource.com Errors-To: xen-devel-bounces@lists.xensource.com To: Andre Przywara Cc: Leonardo Prosperi , =?ISO-8859-1?Q?hbiel-Gr=E4ther?= , =?ISO-8859-1?Q?Jens_Kre?=, Joerg Roedel , "Huang2, Wei" , Eikelenboom , "xen-devel@lists.xensource.com" , Andrew Oakley List-Id: xen-devel@lists.xenproject.org I've just got the Biostar mainboard. I can cant find any option for enabling IOMMU. When i check via: ls /sys/firmware/acpi/tables/ APIC DSDT FACP FACS HPET MCFG OEMB SRAT SSDT dynamic dmesg |grep -i iommu lspci -d 1002:5a23 I don't see any traces of IOMMU. I'm going to contact Biostar about this, I hope I can per sway them to enable IOMMU. Regards, Joop. On 06/15/2010 11:37 PM, Joop Boonen wrote: > I've got the following answer from Biostar in respect to the Biostar > TA890FXE main board. > http://www.biostar.com.tw/app/en/mb/introduction.php?S_ID=3D482 > > > The motherboard supports IOMMU, but the CPU you are installing also mus= t > support IOMMU. > > > > support@biostar-usa.com > 626-581-1055 menu select 2=20 > > > > I've just took the risk to order this mainboard as the main board is > relatively cheap and I hope/presume the IOMMU will be supported > eventually if it's not supported yet. > I'll update you when I know the result. > I understood IOMMU is not related to the CPU i.e. IOMMU should also be > supported when the CPU on the main board is a AMD Phenom II X2 550 Blac= k > Edition? > > On 06/14/2010 03:49 PM, Andre Przywara wrote: > =20 >> Jens Krehbiel-Gr=E4ther wrote: >> =20 >>> Hi! >>> >>> I now got a Asus Crosshair IV mainboard and here are the outputs >>> after I enabled the IOMMU option in the bios: >>> >>> xen-01:~# ls /sys/firmware/acpi/tables/ >>> APIC DSDT dynamic FACP FACS HPET IVRS MCFG OEMB SRAT SSDT >>> xen-01:~# dmesg |grep -i iommu >>> [ 1.691432] AMD-Vi: Enabling IOMMU at 0000:00:00.2 cap 0x40 >>> xen-01:~# lspci -d 1002:5a23 >>> 00:00.2 Generic system peripheral [0806]: ATI Technologies Inc Device >>> 5a23 >>> xen-01:~# >>> >>> So here is the IOMMU of the 890FX. Will go further for testing now.. >>> =20 >> Great news, thanks for pursuing that. >> >> For the other boards: >> We have identified an issue and are working on a solution. Stay tuned. >> >> Also please note that sometimes board vendors also call the AMD64 GART >> an IOMMU, so if you have correspondence with them, make sure you are >> talking about the same thing. >> >> Regards, >> Andre. >> >> =20 > > _______________________________________________ > Xen-devel mailing list > Xen-devel@lists.xensource.com > http://lists.xensource.com/xen-devel > =20