"Storage keys are not part of addressable storage."

http://publibfp.dhe.ibm.com/epubs/pdf/a227832d.pdf page 3-9

Joe

On Tue, Nov 22, 2022 at 9:22 AM Ian Worthington <
[email protected]> wrote:

> Does anyone know where the storage protection keys are kept?  It seems
> that the processors maintain recent keys in the TLB to be accessed by the
> DAT,  but where do they live when they're not in the TLB?  Surely we need
> one byte per 4k page per address space, which could be quite a bit of
> storage, so I'm assuming this has to be above the bar now? I can't see any
> information in the pop about this.
>
>
> Best wishes / Mejores deseos /  Meilleurs vœux
>
> Ian ...
>
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