lkml.org 
[lkml]   [2022]   [Mar]   [7]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [PATCH RFC] arm64: improve display about CPU architecture in cpuinfo
On Mon, 07 Mar 2022 03:04:17 +0000,
Rongwei Wang <rongwei.wang@linux.alibaba.com> wrote:
>
> Now, it is unsuitable for both ARMv8 and ARMv9 to show a
> fixed string "CPU architecture: 8" in /proc/cpuinfo.

Please read the various threads that have been going on over the past
10+ years about *why* we don't allow this sort of change (TL;DR: it
breaks userspace, and we don't do that).

Also, there is no material difference between v8 and v9 that would be
observable from userspace outside of the "Features:" line. And if that
doesn't convince you, just think of '8' as the number of bytes used by
a virtual address. You can't make that a '9'. Yet.

M.

--
Without deviation from the norm, progress is not possible.

\
 
 \ /
  Last update: 2022-03-07 09:45    [W:1.924 / U:0.032 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site