(old) htmldiff from-(new)

ITLBIMVA, Instruction TLB Invalidate by VA

The ITLBIMVA characteristics are:

Purpose

Invalidate all cached copies of translation table entries from instruction 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 System instruction.

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

Configuration

Attributes

ITLBIMVA is a 32-bit System instruction.

Field descriptions

The ITLBIMVA input value bit assignments are:

313029282726252423222120191817161514131211109876543210
VA0 0 0 0 RES0ASID

VA, bits [31:12]

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

Accesses to this instruction use the following encodings:

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

coprocopc1CRnCRmopc2
opc1opc2CRncoprocCRm
0b11110b0000b10000b01010b001
0b0000b0010b10000b11110b0101

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 ITLBIASID(R[t]); elsif PSTATE.EL == EL2 then ITLBIASID(R[t]); elsif PSTATE.EL == EL3 then ITLBIASID(R[t]);




2713/0312/20192018 2116:5942; e5e4db499bf9867a4b93324c4dbac985d3da93766379d01c197f1d40720d32d0f84c419c9187c009

Copyright © 2010-20192010-2018 Arm Limited or its affiliates. All rights reserved. This document is Non-Confidential.

(old) htmldiff from-(new)