[PATCH v1 15/18] arm64: disable EL2 traps for PIE

[Mark Brown]

On Thu, Mar 09, 2023 at 02:52:43PM +0000, Joey Gouly wrote:

> Disable trapping of TCR2_EL1 and PIRx_EL1 registers, so they can be
> accessed from by EL1.

There should be an update to booting.rst documenting what's needed here,
and also what we need EL3 to do for use at EL2.

Reviewed-by: Mark Brown <broonie at kernel.org>
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