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I've been working on a Windows 10 HVM on a Debian 10 dom0. When I was first trying to make the VM, I was getting IOMMU errors. I had a hard time figuring out what to do about this, and finally discovered that putting iommu=no-igfx in the grub stopped the errors.

Unfortunately, without the graphics support the VM is understandably slow, and can crash. I was also only now pointed to the page which says to report any errors that get fixed by using iommu=no-igfx.

I'm attaching a copy of xl dmesg from before I put in the no-igfx. The bottom is the iommu errors. If there is a better way for me to share the output, please let me know.

Attachment: xendmesg.log
Description: Text Data



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