Re: [PATCH] x86/cpu: Disable FRED when PTI is forced on

H. Peter Anvin
2026-04-22T15:02:11Z

On April 22, 2026 5:08:27 AM PDT, Andrew Cooper <andrew.cooper3@citrix.com> wrote:
>> FRED and PTI were never intended to work together. No FRED hardware is
>> vulnerable to Meltdown and all of it should have LASS anyway.
>
>Careful.  All Intel parts maybe, but Intel is not the only vendor
>implementing FRED.
>
>~Andrew

We know. AMD are aware of the tradeoff as well and presumably have their own approach(es) to avoid these problems.