Re: Relax CPU features sanity checking on heterogeneous architectures

From: Stephen Boyd
Date: Fri Oct 18 2019 - 10:33:34 EST


Quoting Marc Zyngier (2019-10-18 00:20:56)
>
> If this SoC is anythinig like SM8150, 32bit guests will be hit and
> miss,
> depending on the CPU your guest runs on, or is migrated to. We need to
> either drop capabilities from the 32bit-capable CPU, or prevent the
> non-32bit capable CPU from booting if a 32bit guest has been started.
>
> You just have to hope that the kernel is entered at EL2, and that QC's
> "value add" has been moved somewhere else...
>

Ok that's good.