jefby
Posts: 1
Joined: Thu Mar 27, 2014 3:45 am

raspberry pi 3 don't recognize armv8

Sat Apr 16, 2016 2:10 pm

Hi, I bought a raspberry pi 3 B board, and use command dmesg, i found some strange information:

Code: Select all

[    0.000000] Linux version 4.1.19-v7+ (dc4@dc4-XPS13-9333) (gcc version 4.9.3 (crosstool-NG crosstool-ng-1.22.0-88-g8460611) ) #858 SMP Tue Mar 15 15:56:00 GMT 2016
[    0.000000] CPU: ARMv7 Processor [410fd034] revision 4 (ARMv7), cr=10c5383d
[    0.000000] CPU: PIPT / VIPT nonaliasing data cache, VIPT aliasing instruction cache
[    0.000000] Machine model: Raspberry Pi 3 Model B Rev 1.2
AFAK, raspberry pi 3 B is armv8, why kernel recognize armv7? Does raspberry pi support aarch64 mode now?

Thanks very much.

ghans
Posts: 7882
Joined: Mon Dec 12, 2011 8:30 pm
Location: Germany

Re: raspberry pi 3 don't recognize armv8

Sat Apr 16, 2016 4:00 pm

The Raspberry Pi runs in ARMv7 mode for the time
being. Even /proc/cpuinfo will report an ARMv7 machine.

You can get experimental AArch64/ARMv8 kernels.
Whether they will become the default is not yet determined.

ghans
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