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SubjectRe: [PATCH v6 07/13] arm64: add basic pointer authentication support
On Fri 2018-12-07 18:39:25, Kristina Martsenko wrote:
> From: Mark Rutland <mark.rutland@arm.com>
>
> This patch adds basic support for pointer authentication, allowing
> userspace to make use of APIAKey, APIBKey, APDAKey, APDBKey, and
> APGAKey. The kernel maintains key values for each process (shared by all
> threads within), which are initialised to random values at exec()
time.

...

> +/*
> + * We give each process its own keys, which are shared by all threads. The keys
> + * are inherited upon fork(), and reinitialised upon exec*().
> + */
> +struct ptrauth_keys {
> + struct ptrauth_key apia;
> + struct ptrauth_key apib;
> + struct ptrauth_key apda;
> + struct ptrauth_key apdb;
> + struct ptrauth_key apga;
> +};

intstruction_a, data_a, generic_a? Should be easier to understand than
"apdb" ...

Pavel
--
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
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