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AMAIR_EL3, Auxiliary Memory Attribute Indirection Register (EL3)

The AMAIR_EL3 characteristics are:

Purpose

Provides IMPLEMENTATION DEFINED memory attributes for the memory regions specified by MAIR_EL3.

Configuration

RW fields in this register reset to architecturally UNKNOWN values.

Attributes

AMAIR_EL3 is a 64-bit register.

Field descriptions

The AMAIR_EL3 bit assignments are:

6362616059585756555453525150494847464544434241403938373635343332
IMPLEMENTATION DEFINED
IMPLEMENTATION DEFINED
313029282726252423222120191817161514131211109876543210

AMAIR_EL3 is permitted to be cached in a TLB.

IMPLEMENTATION DEFINED, bits [63:0]

IMPLEMENTATION DEFINED.

This field resets to an architecturally UNKNOWN value.

Accessing the AMAIR_EL3

AMAIR_EL3 is permitted to be cached in a TLB.

Accesses to this register use the following encodings:

MRS <Xt>, AMAIR_EL3

op0op1CRnCRmop2
op0CRnop1op2CRm
0b110b1100b10100b00110b000
0b110b10100b1100b0000b0011

if PSTATE.EL == EL0 then UNDEFINED; elsif PSTATE.EL == EL1 then UNDEFINED; elsif PSTATE.EL == EL2 then UNDEFINED; elsif PSTATE.EL == EL3 then return AMAIR_EL3;

MSR AMAIR_EL3, <Xt>

op0op1CRnCRmop2
op0CRnop1op2CRm
0b110b1100b10100b00110b000
0b110b10100b1100b0000b0011

if PSTATE.EL == EL0 then UNDEFINED; elsif PSTATE.EL == EL1 then UNDEFINED; elsif PSTATE.EL == EL2 then UNDEFINED; elsif PSTATE.EL == EL3 then AMAIR_EL3 = X[t];




2713/0312/20192018 2116:5942; e5e4db499bf9867a4b93324c4dbac985d3da93766379d01c197f1d40720d32d0f84c419c9187c009

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