[PATCH 01/14] arm64: cpufeature: Handle NV_frac as a synonym of NV2

[Aneesh Kumar K.V]

Marc Zyngier <maz at kernel.org> writes:

> With ARMv9.5, an implementation supporting Nested Virtualization
> is allowed to only support NV2, and to avoid supporting the old
> (and useless) ARMv8.3 variant.
>
> This is indicated by ID_AA64MMFR2_EL1.NV being 0 (as if NV wasn't
> implemented) and ID_AA64MMDR4_EL1.NV_frac being 1 (indicating that
                            ^ F
The register name is wrong there.

> NV2 is actually supported).
>

-aneesh