TLBIALLH, TLB Invalidate All, Hyp mode

The TLBIALLH characteristics are:

Purpose

If EL2 is implemented, invalidate all cached copies of translation table entries from TLBs that are from any level of the translation table walk that would be required for the Non-secure EL2 translation regime.

The invalidation only applies to the PE that executes this System instruction.

Configuration

This instruction is present only when FEAT_AA32EL2 is implemented. Otherwise, direct accesses to TLBIALLH are UNDEFINED.

Attributes

TLBIALLH is a 32-bit System instruction.

Field descriptions

This instruction has no applicable fields.

The value in the register specified by <Rt> is ignored.

Executing TLBIALLH

If this instruction is executed in a Secure privileged mode other than Monitor mode, then the behavior is CONSTRAINED UNPREDICTABLE, and one of the following behaviors must occur:

Accesses to this instruction use the following encodings in the System instruction encoding space:

MCR{<c>}{<q>} <coproc>, {#}<opc1>, <Rt>, <CRn>, <CRm>{, {#}<opc2>}

coprocopc1CRnCRmopc2
0b11110b1000b10000b01110b000

if !IsFeatureImplemented(FEAT_AA32EL2) then UNDEFINED; elsif PSTATE.EL == EL0 then UNDEFINED; elsif PSTATE.EL == EL1 then if EL2Enabled() && IsFeatureImplemented(FEAT_AA64EL2) && !ELUsingAArch32(EL2) && HSTR_EL2.T8 == '1' then AArch64.AArch32SystemAccessTrap(EL2, 0x03); elsif EL2Enabled() && IsFeatureImplemented(FEAT_AA32EL2) && ELUsingAArch32(EL2) && HSTR.T8 == '1' then AArch32.TakeHypTrapException(0x03); else UNDEFINED; elsif PSTATE.EL == EL2 then AArch32.TLBI_ALL(SecurityStateAtEL(EL2), Regime_EL2, Broadcast_NSH, TLBI_AllAttr); elsif PSTATE.EL == EL3 then if !HaveEL(EL2) then UNDEFINED; else AArch32.TLBI_ALL(SS_NonSecure, Regime_EL2, Broadcast_NSH, TLBI_AllAttr);


21/03/2025 17:52; 154105dd5041532b480d9ef0c018b8420cbe5c19

Copyright © 2010-2025 Arm Limited or its affiliates. All rights reserved. This document is Non-Confidential.