Re: [Xen-devel] Re: pci passthrough and Xenserver

[Ritu kaur <ritu.kaur.us@gmail.com>]

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Hi Ian,

Thank for the inputs, will try this out.

Thanks


On Wed, Mar 10, 2010 at 8:05 AM, Ian Campbell <Ian.Campbell@citrix.com>wrote:

> Please don't cross-post.
>
> On Wed, 2010-03-10 at 01:29 +0000, Ritu kaur wrote:
> > Hi,
> >
> > I had additional questions(I re-read the Assign_hardware...), and I
> > don't quite follow it completely. The config given is for dom0, it
> > doesn't have any information as to what domU will get access to this
> > pci device? Do I need to change config in domU as well, document
> > doesn't say anything about it. Furthermore, in the document I see
> > references to "xm pci-list-assignable-devices" cli's, however, XCP
> > comes with xe tool-stack, does it come with similar pci commands? I am
> > yet to install XCP, but wanted to check.
>
> With XenAPI you can set the VM.other-config:pci key to a comma separated
> list of "<bus>/<bdf>" where bus should always be 0 and <bdf> is the
> bus-device-function as seen in domain 0. For example to pass device
> 0000:07:10.0 through to a guest try:
>
> xe vm-param-set uuid=<uuid> other-config:pci=0000:07:10.0
>
> You may need to manually load the pciback module first.
>
> Ian.
>
> >
> > Thanks
> >
> >
> > On Tue, Mar 9, 2010 at 5:07 PM, Ritu kaur <ritu.kaur.us@gmail.com>
> > wrote:
> >         Hi,
> >
> >         I did go through  vmops.ml and I really didn't get much
> >         information on what config file it is reading or what changes
> >         are needed. I looked at
> >
> http://wiki.xensource.com/xenwiki/Assign_hardware_to_DomU_with_PCIBack_as_modulefrom the link given by Dullor, not sure whether those changes suffice XCP
> for pci passthrough hence thought of checking. Any inputs?
> >
> >         Thanks
> >
> >         On Mon, Mar 8, 2010 at 2:37 PM, James Troup
> >         <james@linuxterminal.com> wrote:
> >
> >
> >                 No PCI passthrough for XenServer AFAIK.
> >                 You need XCP for that and then it is still very
> >                 experimental with NO documentation except what is in
> >                 the code.
> >                 Line 483+
> >
> http://xenbits.xen.org/xapi/xen-api.hg?file/a8decf9d3bee/ocaml/xapi/vmops.ml
> >
> >
> >
> >                 ----- Original Message -----
> >                 From: "Ritu kaur" <ritu.kaur.us@gmail.com>
> >                 To: xen-devel@lists.xensource.com,
> >                 xen-users@lists.xensource.com
> >                 Sent: Tuesday, 9 March, 2010 6:29:49 AM
> >                 Subject: [Xen-users] pci passthrough and Xenserver
> >
> >                 Hi,
> >
> >                 We are running Citrix Xenserver 5.5(dom0) and PV
> >                 guests(domU). Since VT-d support is not required for
> >                 PV guests has anyone tried pci passthrough with Citrix
> >                 Xenserver? If yes what config file changes are
> >                 required in domU and dom0? I looked at Citrix forums
> >                 and xen.org/xen-users archives, not getting useful
> >                 information from it. Inputs much appreciated.
> >
> >                 Thanks
> >
> >
> >
> >                 _______________________________________________
> >                 Xen-users mailing list
> >                 Xen-users@lists.xensource.com
> >                 http://lists.xensource.com/xen-users
> >
> >
>
>
>

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