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TLBI ALLE3, TLB Invalidate All, EL3

The TLBI ALLE3 characteristics are:

Purpose

If EL3 is implemented, invalidates cached copies of translation table entries from TLBs that meet all the following requirements:

  • The entry is a stage 1 translation table entry, from any level of the translation table walk.

  • The entry would be required to translate an address using the EL3 translation regime.

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

Configuration

There are no configuration notes.

Attributes

TLBI ALLE3 is a 64-bit System instruction.

Field descriptions

This instruction has no applicable fields.

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

Executing the TLBI ALLE3 instruction

When executing this instruction Xt should be encoded as 0b11111. If the Xt field is not set to 0b11111, it is CONSTRAINED UNPREDICTABLE whether:

  • The instruction is UNDEFINED.

  • The instruction behaves as if the Xt field is set to 0b11111.

Accesses to this instruction use the following encodings:

TLBI ALLE3{, <Xt>}

op0op1CRnCRmop2
0b010b1100b10000b01110b000
if PSTATE.EL == EL0 then
    UNDEFINED;
elsif PSTATE.EL == EL1 then
    UNDEFINED;
elsif PSTATE.EL == EL2 then
    UNDEFINED;
elsif PSTATE.EL == EL3 then
    TLBI_ALLE3();