Hi list, I´m planning to buy a new machine and I´ll need to have pci passthrough working on it. Looking at Xen wiki (http://wiki.xen.org/wiki/VTdHowTo) there are some recommended chipsets and motherboards but the list is little outdated, I can´t find those hardware anymore. I´m looking at Intel DZ68DB MotherBoard (Z68 chipset, http://www.intel.com/support/motherboards/desktop/sb/cs-030922.htm) that intel´s website claim to have vt-d support. Someone has Xen PCI Passthrough working on this board/chipset model ? I would like to know from the list some working PCI Passthrough configuration with new hardware. Best Regards, Alexandre
Looking at that link, I see the board on the Intel *VT* list, NOT the *VT with Directed I/O* (aka, VT-d) list. The VT list is presumably referring just to VT-x (virtualization extensions), and they are not being listed as supporting VT-d (IOMMU). I can''t speak much about the motherboard stuff, but for the processor, if you''re going Intel, ark.intel.com will tell you if a processor supports VT-d or not. On Mon, Nov 21, 2011 at 3:05 PM, Alexandre Biancalana <biancalana@gmail.com>wrote:> Hi list, > > I´m planning to buy a new machine and I´ll need to have pci > passthrough working on it. > > Looking at Xen wiki (http://wiki.xen.org/wiki/VTdHowTo) there are > some recommended chipsets and motherboards but the list is little > outdated, I can´t find those hardware anymore. > > I´m looking at Intel DZ68DB MotherBoard (Z68 chipset, > http://www.intel.com/support/motherboards/desktop/sb/cs-030922.htm) > that intel´s website claim to have vt-d support. Someone has Xen PCI > Passthrough working on this board/chipset model ? > > I would like to know from the list some working PCI Passthrough > configuration with new hardware. > > Best Regards, > Alexandre > > _______________________________________________ > Xen-users mailing list > Xen-users@lists.xensource.com > http://lists.xensource.com/xen-users >_______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users
Well I can confirm the Asus P8B has a working iommu chipset (c206) after the bios update. On Mon, Nov 21, 2011 at 6:48 PM, Felix Kuperjans <felix@desaster-games.com>wrote:> Please send all e-mails also to the mailing list (reply to list (if your > mail client supports this) or reply to all). > > Am 22.11.2011 00:42, schrieb Ben Himberg: > > Well I can confirm the Asus P8B has a working iommu chipset (c206) after > the bios update. > > On Mon, Nov 21, 2011 at 5:00 PM, Felix Kuperjans <felix@desaster-games.com > > wrote: > >> Hello, >> >> Am 21.11.2011 21:11, schrieb John Sherwood: >> >> Looking at that link, I see the board on the Intel *VT* list, NOT the *VT >> with Directed I/O* (aka, VT-d) list. The VT list is presumably referring >> just to VT-x (virtualization extensions), and they are not being listed as >> supporting VT-d (IOMMU). >> >> I can''t speak much about the motherboard stuff, but for the processor, if >> you''re going Intel, ark.intel.com will tell you if a processor supports >> VT-d or not. >> >> Processor support alone is not enough for VT-d. VT-d must be also >> supported and enabled on the chipset (and therefore, the mainboard >> BIOS/EFI). >> >> It''s sometimes hard to find resources if a mainboard really has a working >> IOMMU, that''s why the list in the Xen Wiki is usually very valuable. >> >> >> On Mon, Nov 21, 2011 at 3:05 PM, Alexandre Biancalana < >> biancalana@gmail.com> wrote: >> >>> Hi list, >>> >>> I´m planning to buy a new machine and I´ll need to have pci >>> passthrough working on it. >>> >> AFAIK, pci passthrough to paravirtual Linux guests would also be >> possible without hardware support. >> >> >>> Looking at Xen wiki (http://wiki.xen.org/wiki/VTdHowTo) there are >>> some recommended chipsets and motherboards but the list is little >>> outdated, I can´t find those hardware anymore. >>> >>> I´m looking at Intel DZ68DB MotherBoard (Z68 chipset, >>> http://www.intel.com/support/motherboards/desktop/sb/cs-030922.htm) >>> that intel´s website claim to have vt-d support. Someone has Xen PCI >>> Passthrough working on this board/chipset model ? >>> >>> I would like to know from the list some working PCI Passthrough >>> configuration with new hardware. >>> >>> Best Regards, >>> Alexandre >> >> Best Regards, >> Felix >> >> _______________________________________________ >> Xen-users mailing list >> Xen-users@lists.xensource.com >> http://lists.xensource.com/xen-users >> > >_______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users
Hi John, On Mon, Nov 21, 2011 at 6:11 PM, John Sherwood <jrs@vt.edu> wrote:> Looking at that link, I see the board on the Intel *VT* list, NOT the *VT > with Directed I/O* (aka, VT-d) list. The VT list is presumably referring > just to VT-x (virtualization extensions), and they are not being listed as > supporting VT-d (IOMMU).I know that.> I can''t speak much about the motherboard stuff, but for the processor, if > you''re going Intel, ark.intel.com will tell you if a processor supports VT-d > or not.You''re right I haven''t paid attention that the link has two tables... the Z68 really don''t have the feature.. my fault. Thank you for your time.
On Mon, Nov 21, 2011 at 8:00 PM, Felix Kuperjans <felix@desaster-games.com> wrote:> Hello, > > Am 21.11.2011 21:11, schrieb John Sherwood: > > Looking at that link, I see the board on the Intel *VT* list, NOT the *VT > with Directed I/O* (aka, VT-d) list. The VT list is presumably referring > just to VT-x (virtualization extensions), and they are not being listed as > supporting VT-d (IOMMU). > > I can''t speak much about the motherboard stuff, but for the processor, if > you''re going Intel, ark.intel.com will tell you if a processor supports VT-d > or not. > > Processor support alone is not enough for VT-d. VT-d must be also supported > and enabled on the chipset (and therefore, the mainboard BIOS/EFI). > > It''s sometimes hard to find resources if a mainboard really has a working > IOMMU, that''s why the list in the Xen Wiki is usually very valuable. > > On Mon, Nov 21, 2011 at 3:05 PM, Alexandre Biancalana <biancalana@gmail.com> > wrote: >> >> Hi list, >> >> I´m planning to buy a new machine and I´ll need to have pci >> passthrough working on it. > > AFAIK, pci passthrough to paravirtual Linux guests would also be possible > without hardware support.Reading the wiki again, I''ve see that pci passthrough is possible to paravirtualized guests without VT-d, this is great! Actually I was planning to buy new hardware because until now I can''t do pci passthrough with my actual computer. I''m running Xen version 3.3.1 with AMD Phenom 8450. I need to do pci passthrough of a modem (for asterisk) and a video capture adapter (cftv). Lets go back to the tests. Best Regards, Alexandre