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Re: [PATCH] Implement protection key support for POWER
On 05/23/2018 12:33 PM, Florian Weimer wrote:
> The userspace interface contract is that you have to call pkey_alloc,
> and if that succeeds, you know that you an call pkey_set and
> pkey_get. pkey_alloc is the only way to get a key number that is
That makes perfect sense, thanks for explaining that. So on pre-ISA3.0
hardware you can't get a value from pkey_alloc() because the kernel
would handle that side of the equation.
Are we interested in adding this support right know given the bugs
and potential future changes? I know that your patch implies that you
think it's going to be useful, but I want to call this out explicitly