commit 29080bba23551f225b3e3ff27b40941283919ed9
author Sona Mathew <sonarebecca.mathew@arm.com> Mon Feb 03 00:42:47 2025 -0600
committer Sona Mathew <sonarebecca.mathew@arm.com> Thu Feb 20 21:13:32 2025 -0600
tree 3edc7ac9e5426cc44fc4603871958a23735dda1f
parent 87dbaca6650c260e7f4e689d1f4bf7031d72f758

fix(rmm): add support for BRBCR_EL2 register for feat_brbe

Currently BRBE is being disabled for Realm world in EL3 by
switching the SBRBE bit in mdcr_el3 register to 0b00.
The patch removes the switching of SBRBE bits, and adds
context switch of BRBCR_EL2 register.

Change-Id: I66ca13edefc37e40fa265fd438b0b66f7d09b4bb
Signed-off-by: Sona Mathew <sonarebecca.mathew@arm.com>

include/arch/aarch64/arch_helpers.h

diff --git a/include/arch/aarch64/arch_helpers.h b/include/arch/aarch64/arch_helpers.h
index 4b08337..abe379d 100644
--- a/include/arch/aarch64/arch_helpers.h
+++ b/include/arch/aarch64/arch_helpers.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2013-2024, Arm Limited and Contributors. All rights reserved.
+ * Copyright (c) 2013-2025, Arm Limited and Contributors. All rights reserved.
  *
  * SPDX-License-Identifier: BSD-3-Clause
  */
@@ -716,6 +716,9 @@
 DEFINE_RENAME_SYSREG_RW_FUNCS(cpuppmcr_el3, CPUPPMCR_EL3)
 DEFINE_RENAME_SYSREG_RW_FUNCS(cpumpmmcr_el3, CPUMPMMCR_EL3)
 
+/* Armv9.1 FEAT_BRBE Registers */
+DEFINE_RENAME_SYSREG_RW_FUNCS(brbcr_el2, BRBCR_EL2)
+
 /* Armv9.2 RME Registers */
 DEFINE_RENAME_SYSREG_RW_FUNCS(gptbr_el3, GPTBR_EL3)
 DEFINE_RENAME_SYSREG_RW_FUNCS(gpccr_el3, GPCCR_EL3)