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xen-devel
Re: [Xen-devel] Problems with xen 4.1.x + passthrough + pvonhvm
On Tue, 6 Sep 2011, Benjamin Schweikert wrote:
> Hi,
> I have a Gigabyte 890FXA-UD5 Mainboard with Debian Squeeze (with Debians
> Xen Kernel-2.6.32) and xen 4.0.2 running. I am able to use PV Domains
> with passthrough and HVM Domains (Kernel 2.6.38 with pvonhvm) with pci
> and vga passthroug without any problems.
>
> If I upgrade xen to 4.1.x I can still use my pv domains with pci
> passthrough. I can also use a Win 7 HVM domain with pci passthrough. But
> if I want to use a Ubuntu Natty HVM domain with pci and vga passthrough
> I am running into some errors. Remember, this setup was running with xen
> 4.0.2.
> I attached some log files for every case I tested.
>
> Things that work with the Ubuntu Natty HVM wit Xen 4.1.x:
> - Without passthroughing anything, everything is working
> - Using a Kernel older than 2.6.36 everything is wirking incl. pci and
> vga passthrough
>
> Things I tried without success:
> - Kernel 2.6.38 and 3.0.4 with pvonhvm
> - xen_platform_pci=0
> - hda instead of xvda in the config file
>
> I hope somebody got a good idea how to fix this problem.
There are some known issues with pv on hvm and xen 4.1.1, they should be
fixed in 4.1.2 (not out yet).
The patches you are looking for are:
http://marc.info/?l=xen-devel&m=131478605912076
http://marc.info/?l=xen-devel&m=131478611612127
if you clone the xen-4.1-testing tree
(http://xenbits.xen.org/hg/xen-4.1-testing.hg) they should be there.
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