DTLBIMVA, Data TLB Invalidate by VA

The DTLBIMVA characteristics are:

Purpose

Invalidate all cached copies of translation table entries from data TLBs that meet the following requirements:

From the entries that match these requirement, the entries that are invalidated are required for the following translation regime:

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

Arm deprecates the use of this instruction. It is only provided for backwards compatibility with earlier versions of the Arm architecture.

Configuration

Attributes

DTLBIMVA is a 32-bit System instruction.

Field descriptions

The DTLBIMVA input value bit assignments are:

313029282726252423222120191817161514131211109876543210
VA0000ASID

VA, bits [31:12]

Virtual address to match. Any TLB entries that match the ASID value and VA value will be affected by this operation.

Bits [11:8]

Reserved, RES0.

ASID, bits [7:0]

ASID value to match. Any TLB entries that match the ASID value and VA value will be affected by this operation.

Global TLB entries that match the VA value will be affected by this operation, regardless of the value of the ASID field.

Executing the DTLBIMVA instruction

Accesses to this instruction use the following encodings:

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

opc1opc2CRncoprocCRm
0b0000b0010b10000b11110b0110

if PSTATE.EL == EL0 then UNDEFINED; elsif PSTATE.EL == EL1 then if EL2Enabled() && !ELUsingAArch32(EL2) && HSTR_EL2.T8 == '1' then AArch64.AArch32SystemAccessTrap(EL2, 0x03); elsif EL2Enabled() && ELUsingAArch32(EL2) && HSTR.T8 == '1' then AArch32.TakeHypTrapException(0x03); elsif EL2Enabled() && !ELUsingAArch32(EL2) && HCR_EL2.TTLB == '1' then AArch64.AArch32SystemAccessTrap(EL2, 0x03); elsif EL2Enabled() && !ELUsingAArch32(EL2) && HCR.TTLB == '1' then AArch32.TakeHypTrapException(0x03); else DTLBIMVA(R[t]); elsif PSTATE.EL == EL2 then DTLBIMVA(R[t]); elsif PSTATE.EL == EL3 then DTLBIMVA(R[t]);




13/12/2018 16:42; 6379d01c197f1d40720d32d0f84c419c9187c009

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