Re: [RFC 18/21] arm/cpu: Introduce a customizable kvm host cpu model

[Peter Maydell]

On Mon, 4 Nov 2024 at 17:09, Eric Auger <eric.auger@redhat.com> wrote:
> Was just wondering if all the writable ID reg fields were associated to
> an official FEAT_ listed in this feature list.
> Let's take for instance CTR_EL0.DIC. Is it associated to a given
> extension or is it just implementation defined?

CTR_EL0.DIC is IMPDEF choice of 0 or 1. There's no associated
FEAT_* -- as an implementation, you are effectively just
reporting here what your implementation's properties are.

(CTR_EL0 is not an ID register in the architectural sense.)

thanks
-- PMM