B2.97 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.
Figure B2-80 SCTLR_EL2 bit assignments
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This register resets to 0x30C50838.


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.

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