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