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ACTLR_EL3, Auxiliary Control Register (EL3)

The ACTLR_EL3 characteristics are:

Purpose

Provides IMPLEMENTATION DEFINED configuration and control options for EL3.

Configuration

RW fields in this register reset to architecturally UNKNOWN values.

This register is present only when HaveEL(EL3 is implemented.). Otherwise, direct accesses to ACTLR_EL3 are UNDEFINED.

Attributes

ACTLR_EL3 is a 64-bit register.

Field descriptions

The ACTLR_EL3 bit assignments are:

6362616059585756555453525150494847464544434241403938373635343332
IMPLEMENTATION DEFINED
IMPLEMENTATION DEFINED
313029282726252423222120191817161514131211109876543210

IMPLEMENTATION DEFINED, bits [63:0]

IMPLEMENTATION DEFINED.

This field resets to an architecturally UNKNOWN value.

Accessing the ACTLR_EL3

Accesses to this register use the following encodings:

MRS <Xt>, ACTLR_EL3

op0op1CRnCRmop2
0b110b1100b00010b00000b001

if PSTATE.EL == EL0 then UNDEFINED; elsif PSTATE.EL == EL1 then UNDEFINED; elsif PSTATE.EL == EL2 then UNDEFINED; elsif PSTATE.EL == EL3 then return ACTLR_EL3;

MSR ACTLR_EL3, <Xt>

op0op1CRnCRmop2
0b110b1100b00010b00000b001

if PSTATE.EL == EL0 then UNDEFINED; elsif PSTATE.EL == EL1 then UNDEFINED; elsif PSTATE.EL == EL2 then UNDEFINED; elsif PSTATE.EL == EL3 then ACTLR_EL3 = X[t];




1327/1209/2019 1518:1348; 391b5248b29fb2f001ef74792eaacbd6fc72f2116134483bd14dc8c12a99c984cbfe3431cc1c9707

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