B2.91 SCTLR_EL2, System Control Register, EL2
The SCTLR_EL2 provides top-level control of the system, including its memory system at EL2.
Bit field descriptions
SCTLR_EL2 is a 32-bit register, and is part of:
• The Virtualization registers functional group.
• The Other system control registers functional group.
31 0
EE
2526 20 19 18 12 11 2 14 3
WXN
I C A M
SA
30 29 28 27 24 23 22 21 17 16 15 14 13 10 6 5
RES0
RES1
Figure B2-75 SCTLR_EL2 bit assignments
This register resets to 0x30C50838.
Configurations
If EL2 is not implemented, this register is RES0 from EL3.
Bit fields and details that are not provided in this description are architecturally defined. See the
Arm
®
Architecture Reference Manual Armv8, for Armv8-A architecture profile.
B2 AArch64 system registers
B2.91 SCTLR_EL2, System Control Register, EL2
100798_0300_00_en Copyright © 2016–2018 Arm Limited or its affiliates. All rights
reserved.
B2-275
Non-Confidential
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