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refactor(context mgmt): add cm_prepare_el3_exit_ns function

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As part of the RFC:
https://review.trustedfirmware.org/c/TF-A/trusted-firmware-a/+/13651,
this patch adds the 'cm_prepare_el3_exit_ns' function. The function is
a wrapper to 'cm_prepare_el3_exit' function for Non-secure state.

When EL2 sysregs context exists (CTX_INCLUDE_EL2_REGS is
enabled) EL1 and EL2 sysreg values are restored from the context
instead of directly updating the registers.

Signed-off-by: Zelalem Aweke <zelalem.aweke@arm.com>
Change-Id: I9b071030576bb05500d54090e2a03b3f125d1653
This commit is contained in:
Zelalem Aweke 2022-01-31 16:59:42 -06:00 • committed by Joanna Farley
parent fd5da7a847
commit 8b95e84870
8 changed files with 94 additions and 18 deletions
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4
lib/psci/psci_on.c
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@ -1,5 +1,5 @@
/*
* Copyright (c) 2013-2020, ARM Limited and Contributors. All rights reserved.
* Copyright (c) 2013-2022, ARM Limited and Contributors. All rights reserved.
*
* SPDX-License-Identifier: BSD-3-Clause
*/
@ -229,5 +229,5 @@ void psci_cpu_on_finish(unsigned int cpu_idx, const psci_power_state_t *state_in
* information that we had stashed away during the cpu_on
* call to set this cpu on its way.
*/
cm_prepare_el3_exit(NON_SECURE);
cm_prepare_el3_exit_ns();
}