Re: [PATCH v5 16/16] x86/tdx: Add cmdline option to force use of ioremap_host_shared

Andi Kleen
2021-10-12T17:55:31Z

> I mean ... it's already wide spread.

I meant wide spread usage with confidential guests.

> If we support it with TDX
> it will be used with TDX.

It has some security trade offs. The main reason to use TDX is security.
Also when people take the VT-d tradeoffs they might be ok with the BIOS
trade offs too.

-Andi