On 1/20/20 2:01 PM, Marc Zyngier wrote:
> On 2020-01-20 13:38, Vladimir Murzin wrote:
>> Updates to the Generic Timer architecture allow ID_PFR1.GenTimer to
>> have values other than 0 or 1 while still preserving backward
>> compatibility. At the moment, Linux is quite strict in the way it
>> handles this field at early boot and will not configure arch timer if
>> it doesn't find the value 1.
>>
>> Since here use ubfx for arch timer version extraction (hyb-stub build
>> with -march=armv7-a, so it is safe)
>>
>> To help backports (even though the code was correct at the time of writing)
>> Fixes: 8ec58be9f3ff ("ARM: virt: arch_timers: enable access to physical timers")
>> Signed-off-by: Vladimir Murzin <vladimir.murzin@xxxxxxx>
>
> Acked-by: Marc Zyngier <maz@xxxxxxxxxx>
>
> Feel free to put it into Russell's patch system.
Patch has been accepted as patch 8955/1
Thanks!
Vladimir
>
> Thanks,
>
> M.
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