TLBI ALLE2OS, TLB Invalidate All, EL2, Outer Shareable

The TLBI ALLE2OS characteristics are:

Purpose

If EL2 is implemented and enabled in the current Security state, invalidates cached copies of translation table entries from TLBs that meet all the following requirements:

The invalidation applies to all PEs in the same Outer Shareable shareability domain as the PE that executes this System instruction.

Configuration

This instruction is present only when FEAT_TLBIOS is implemented. Otherwise, direct accesses to TLBI ALLE2OS are UNDEFINED.

Attributes

TLBI ALLE2OS 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 ALLE2OS 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:

Accesses to this instruction use the following encodings:

TLBI ALLE2OS{, <Xt>}

op0op1CRnCRmop2
0b010b1000b10000b00010b000

if PSTATE.EL == EL0 then UNDEFINED; elsif PSTATE.EL == EL1 then if EL2Enabled() && HCR_EL2.NV == '1' then AArch64.SystemAccessTrap(EL2, 0x18); else UNDEFINED; elsif PSTATE.EL == EL2 then TLBI_ALLE2OS(); elsif PSTATE.EL == EL3 then if !EL2Enabled() then UNDEFINED; else TLBI_ALLE2OS();




01/07/2020 15:57; 80324f0b9997bede489cc15ad1565345720bcd2a

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