[PATCH v1 15/20] arm64: add POE signal support

[Mark Brown]

On Tue, Oct 10, 2023 at 10:57:02AM +0100, Joey Gouly wrote:
> On Thu, Oct 05, 2023 at 03:34:29PM +0100, Mark Brown wrote:
> > On Wed, Sep 27, 2023 at 03:01:18PM +0100, Joey Gouly wrote:

> > > Add PKEY support to signals, by saving and restoring POR_EL0 from the stackframe.

> > It'd be nice to have at least a basic test that validates that we
> > generate a POE signal frame when expected, though that should be a very
> > minor thing which is unlikely to ever actually spot anything.

> The selftests/mm/protection_keys.c looks for the POE signal frame, do you think
> we need a separate test?

Like I say it'd be a very minor thing to have one - it is more just a
thing you'd go looking for in the signals tests rather than something
that's absolutely essential.  For trivial things like TPIDR2 I've just
added a trivial thing that verifies that the frame is present iff the
matching HWCAP is set.  Having the test in the mm tests is probably fine
though.
-------------- next part --------------
A non-text attachment was scrubbed...
Name: signature.asc
Type: application/pgp-signature
Size: 488 bytes
Desc: not available
URL: <http://lists.infradead.org/pipermail/linux-arm-kernel/attachments/20231010/2b354fd8/attachment-0001.sig>