REVIDR_EL1, Revision ID Register

The REVIDR_EL1 characteristics are:

Purpose

Provides implementation-specific minor revision information.

Configuration

AArch64 System register REVIDR_EL1 bits [31:0] are architecturally mapped to AArch32 System register REVIDR[31:0] .

If REVIDR_EL1 has the same value as MIDR_EL1, then its contents have no significance.

Attributes

REVIDR_EL1 is a 64-bit register.

Field descriptions

The REVIDR_EL1 bit assignments are:

6362616059585756555453525150494847464544434241403938373635343332
IMPLEMENTATION DEFINED
IMPLEMENTATION DEFINED
313029282726252423222120191817161514131211109876543210

IMPLEMENTATION DEFINED, bits [63:0]

IMPLEMENTATION DEFINED.

Accessing the REVIDR_EL1

Accesses to this register use the following encodings:

MRS <Xt>, REVIDR_EL1

op0CRnop1op2CRm
0b110b00000b0000b1100b0000

if PSTATE.EL == EL0 then UNDEFINED; elsif PSTATE.EL == EL1 then if EL2Enabled() && !ELUsingAArch32(EL2) && HCR_EL2.TID1 == '1' then AArch64.SystemAccessTrap(EL2, 0x18); else return REVIDR_EL1; elsif PSTATE.EL == EL2 then return REVIDR_EL1; elsif PSTATE.EL == EL3 then return REVIDR_EL1;




13/12/2018 16:42; 6379d01c197f1d40720d32d0f84c419c9187c009

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