pkeys: Reserve PKEY_DISABLE_READ

Dave Hansen dave.hansen at intel.com
Wed Nov 28 02:31:38 AEDT 2018


On 11/27/18 3:57 AM, Florian Weimer wrote:
> I would have expected something that translates PKEY_DISABLE_WRITE |
> PKEY_DISABLE_READ into PKEY_DISABLE_ACCESS, and also accepts
> PKEY_DISABLE_ACCESS | PKEY_DISABLE_READ, for consistency with POWER.
> 
> (My understanding is that PKEY_DISABLE_ACCESS does not disable all
> access, but produces execute-only memory.)

Correct, it disables all data access, but not execution.



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