Re: [RFC v2-fix 1/1] x86/tdx: Handle in-kernel MMIO

[Andi Kleen]

> virtio-pci, which is going to used by pretty much all traditional VMs, uses iomap.
> See vp_get(), vp_set(), and all the vp_io{read,write}*() wrappers.

That's true. But there are still all the other users. So it doesn't 
solve the problem. In the end I'm fairly sure we would need to patch 
readl/writel and friends.

-Andi