TLBI ALLE2OS, TLB Invalidate All, EL2, Outer Shareable

The TLBI ALLE2OS characteristics are:

Purpose

If EL2 is implemented and enabled in the current Security state, invalidates cached copies of translation table entries from TLBs that meet all the following requirements:

The invalidation only applies to all PEs in the same Outer Shareable shareability domain as the PE that executes this instruction.

Configuration

This instruction is present only when ARMv8.4-TLBI is implemented. Otherwise, direct accesses to TLBI ALLE2OS are UNDEFINED.

Attributes

TLBI ALLE2OS is a 64-bit System instruction.

Field descriptions

TLBI ALLE2OS ignores the value in the register specified by the instruction encoding. Software does not have to write a value to the register before issuing this instruction.

Executing the TLBI ALLE2OS instruction

Accesses to this instruction use the following encodings:

TLBI ALLE2OS{, <Xt>}

Rtop0op1op2CRnCRm
0b111110b010b1000b0000b10000b0001

if PSTATE.EL == EL0 then UNDEFINED; elsif PSTATE.EL == EL1 then if EL2Enabled() && HCR_EL2.NV == '1' then AArch64.SystemAccessTrap(EL2, 0x18); else UNDEFINED; elsif PSTATE.EL == EL2 then TLBI_ALLE2OS(); elsif PSTATE.EL == EL3 then if !EL2Enabled() then UNDEFINED; else TLBI_ALLE2OS();




13/12/2018 16:42; 6379d01c197f1d40720d32d0f84c419c9187c009

Copyright © 2010-2018 Arm Limited or its affiliates. All rights reserved. This document is Non-Confidential.