Re: [PATCH v4 6/6] xen/igd: use custom option ROM if provided

On 7/31/2026 8:17 PM, Chuck Zmudzinski wrote:

> 
> As mentioned in the message accompanying Patch 4 of this patchset,
> the official edk2 project does not provide support for the Intel
> IGD, but some OVMF patches for Intel IGD support are available
> online for KVM/VFIO guests, such as at the links below (they apply
> to the OvmfPkgX64 platform):
> 
> https://github.com/cmd2001/build-edk2-gvtd
> https://eci.intel.com/docs/3.3/components/kvm-hypervisor.html#build-ovmf-fd-for-kvm
> https://github.com/LongQT-sea/intel-igpu-passthru

And also from Tomita:

https://github.com/tomitamoeko/VfioIgdPkg

Thanks, Tomita!

> 
> With such patches it is reported that the passed through Intel
> IGD device lights up the display during early boot from OVMF
> and the guest bootloader in KVM/VFIO guests provided that the
> administrator provides the correct ROM file via the 'romfile'
> setting for the passed thorugh Intel iGD device and applies
> appropriate patches to the OvmfPkgX64 platform.
> 
> It should also be possible to add Intel IGD support for the OvmfXen
> platform also but I have not seen any such patches online for OvmfXen
> and if anyone knows of such patches online I would be interested to
> be informed about them. I am also working on my own patches to
> add Intel IGD support to the OvmfXen platform, in private for now.
> If anyone is interested, I can make the work I have done so far
> toward this goal avalable online.
>