[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [Xen-devel] [v5][PATCH 0/5] xen: add Intel IGD passthrough support
Hi, I've been working on IGD passthrough using native qemu and VFIO, (without any XEN components). This work hasn't progressed in recent, but I am able to continue it again. Late last year I was in discussions with Allen Kay, Vikas Shivappa from Intel and Alex Williamson from Redhat, which resulted in successfully loading the i915 driver with opregion support which provided Intel frame buffer, but I did not get 2D or 3D acceleration working.Â
I did this using Q35. The code is not without similar hacks that have been scrutinised here, and most intellectual parts of the code come from XEN (like the opregion location and size) - the code in parts should look similar. but Alex helped me convert it from XEN to QEMU.
with the disclaimer that this is code is immature, has been written to prove out the concept (not to be suggested as appropriate for upstream) and may not even patch correctly. but as some indication of the direction I was taking. please look here:Âhttps://github.com/UmbraMalison/qemu-igdvfio
I realise that this takes this conversation on yet another tangent, however my justification for doing is that many of the root discussions and potential flaws of cross xen implementation and use of piix are at least addressed.
Also, if there is potential for further help in completing this task that would be well received. I am still keen to complete this implementation and hope to find some missing pieces in Tiejun's work, currently I am re-basing on v2.0.0.
Best, Andy On 25 June 2014 03:17, Tiejun Chen <tiejun.chen@xxxxxxxxx> wrote: V5 is generated just based on Paolo's some comments. _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxx http://lists.xen.org/xen-devel
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