Re: [PATCH v5 16/16] x86/tdx: Add cmdline option to force use of ioremap_host_shared
From: Andi Kleen
Date: Mon Oct 11 2021 - 13:35:24 EST
Presumably bios code is in arch/x86 and drivers/acpi, right?
Up to 200 calls the majority of which is likely private ...
Yes.
I don't have better ideas but the current setup will just
result in people making their guests vulnerable whenever they
want to allow device pass-through.
Yes that's true. For current TDX our target is virtual devices only. But
if pass through usage will be really wide spread we may need to revisit.
-Andi