TLBIMVAA, TLB Invalidate by VA, All ASID

The TLBIMVAA characteristics are:

Purpose

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

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

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

Configuration

This instruction is present only when AArch32 is supported at any Exception level. Otherwise, direct accesses to TLBIMVAA are UNDEFINED.

Attributes

TLBIMVAA is a 32-bit System instruction.

Field descriptions

The TLBIMVAA input value bit assignments are:

313029282726252423222120191817161514131211109876543210
VARES0

VA, bits [31:12]

Virtual address to match. Any unlocked TLB entries that match the VA will be affected by this System instruction, regardless of the ASID.

Bits [11:0]

Reserved, RES0.

Executing the TLBIMVAA instruction

Accesses to this instruction use the following encodings:

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

coprocopc1CRnCRmopc2
0b11110b0000b10000b01110b011

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); elsif EL2Enabled() && ELUsingAArch32(EL2) && HCR.FB == '1' then TLBIMVAAIS(R[t]); else TLBIMVAA(R[t]); elsif PSTATE.EL == EL2 then TLBIMVAA(R[t]); elsif PSTATE.EL == EL3 then TLBIMVAA(R[t]);




30/09/2020 15:07; ccead0cb9f089f9ceec50268e82aec9e71047211

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