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| H A D | thread_a64.S | b8cb450197c441fcaab05004201e371f0e1f605a Mon Sep 19 13:46:53 UTC 2022 Jens Wiklander <jens.wiklander@linaro.org> core: add missing pauth key saving in foreign interrupt handler
When a foreign interrupt (non-secure) is trapped in OP-TEE the state of
the current thread is saved similarly to when an RPC is performed.
With pointer authentication enabled two more registers which are part of
the current context, APIAKEYHI-EL1 and APIAKEYLO-EL1, are added. These
registers contains a key needed for pointer authentication. This key is
unique per context so it must always be saved and restored when
switching context.
Prior to this patch the step where this key is saved in the foreign
interrupt handler was missing, so fix this by adding the missing step.
Fixes: 2b06f9dede33 ("Add basic pointer authentication support for TA's")
Acked-by: Jerome Forissier <jerome.forissier@linaro.org>
Acked-by: Etienne Carriere <etienne.carriere@linaro.org>
Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org>
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