Re: [Xen-users] vga passthrogh on mainboards with broken ivrs tables

[David Sutton <kantras@xxxxxxxxx>]

Michael & Eric,

On Tue, Dec 24, 2013 at 6:42 AM, Michaael Mair-Keimberger <m.mairkeimberger@xxxxxxxxx> wrote:

Hi Eric,

I still couldn't get it to work. However, since the ivrs_ioapic kernel
parameter didn't do anything (i didn't even got any log messages about
it) i've dug further into this parameter.
Sadly i found out it's not included in xen-4.3.1 and since gentoo
doesn't provide git ebuilds for xen i'll gonna wait until next xen
will be released. xen-4.4 should be release on 21.01.14 - Thats not that
far away and i guess i can wait for it :)

If you want to passthrough your graphic card i suggest you to install a older
version of xen. Personally i have my own xen-4.2.1 ebuild which don't
include XSA-36. That one works perfectly well.
If irvs_ioapic won't help with next xen I'll go back too...

Regards,

Michael

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  Just wanting to check the basics - have you also make sure you've installed the latest BIOS update for your motherboard? Sometimes these updates contain fixes fror issues such as bad table entries. 

Regards,

  David

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