Thread (2 messages) 2 messages, 2 authors, 2018-11-27

Re: pkeys: Reserve PKEY_DISABLE_READ

From: Dave Hansen <hidden>
Date: 2018-11-27 15:31:41
Also in: linux-mm, linuxppc-dev

Possibly related (same subject, not in this thread)

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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