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

Andi Kleen
2021-10-11T02:40:03Z

> The connection is quite unfortunate IMHO.
> Can't there be an option
> that unbreaks drivers *without* opening up security holes by
> making BIOS shared?

That would require new low level APIs that distinguish both cases, and a
tree sweep.

-Andi