Re: [PATCH v4 0/2] MR6225: Populate ARM64 ID register registry keys using the SMBIOS.

[Billy Laws (＠bylaws)]

On Fri Sep  6 20:47:12 2024 +0000, Martin Storsjö wrote:
> FYI, this isn't universally the case - Linux trapping and emulating them
> hasn't been around since forever.
> Linux v4.11 added `HWCAP_CPUID`, and if this hwcap is enabled, the
> trapping is supported. (I'm not sure if there are kernels past 4.11 that
> don't have it set, though.) I do run wine on arm64 on a couple of old
> devboards that run Linux 4.4 kernels - although I haven't updated my
> version of Wine on them for quite a while...
> Anyway, ideally, we'd check `getauxval(AT_HWCAP) & HWCAP_CPUID` before
> going ahead and trying to read these registers - even if few users today
> really run older kernels.

Ah yep, realised this earlier but forgot to address, will Mr a fix