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Re: [Xen-devel] [RFC] XenGT - An Mediated Graphics Passthrough Solution from Intel



> -----Original Message-----
> 
> XenGT implements the mediator in dom0, called vgt driver. This avoids
> adding complex device knowledge to Xen, and also permits a more flexible
> release model. In the meantime, we want to have a unified architecture to
> mediate all the VMs, including dom0. Thus, We developed a ³deprivileged²
> dom0 mode, which essentially trapped Dom0's access to selected resources
> (graphics resources in XenGT case) and forwarded to vgt driver (which is
> also in Dom0) for processing.
> 

Hi,

  Thanks for sharing the patches. From my cursory glance at the code do seem to 
have put quite a lot of it into the hypervisor itself. Are you implementing 
your device model there and talking directly to the vgt driver in some way, or 
is trapped IO going via QEMU?

  Paul

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