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TLBI ALLE3IS, TLBI ALLE3ISNXS, TLB Invalidate All, EL3, Inner Shareable

The TLBI ALLE3IS, TLBI ALLE3ISNXS characteristics are:

Purpose

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

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

If FEAT_XS is implemented, the nXS variant of this System instruction is defined.

Both variants perform the same invalidation, but the TLBI System instruction without the nXS qualifier waits for all memory accesses using in-scope old translation information to complete before it is considered complete.

The TLBI System instruction with the nXS qualifier is considered complete when the subset of these memory accesses with XS attribute set to 0 are complete.

Configuration

There are no configuration notes.

Attributes

TLBI ALLE3IS, TLBI ALLE3ISNXS 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 ALLE3IS, TLBI ALLE3ISNXS 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 ALLE3IS{, <Xt>}

op0op1CRnCRmop2
0b010b1100b10000b00110b000

if PSTATE.EL == EL0 then UNDEFINED; elsif PSTATE.EL == EL1 then UNDEFINED; elsif PSTATE.EL == EL2 then UNDEFINED; elsif PSTATE.EL == EL3 then TLBI_ALL(SecurityStateAtEL(EL3), Regime_EL3, Shareability_Inner, TLBI_AllAttr);TLBI_ALLE3IS();

TLBI ALLE3ISNXS{, <Xt>}

op0op1CRnCRmop2
0b010b1100b10010b00110b000

if !IsFeatureImplemented(FEAT_XS) then UNDEFINED; elsif PSTATE.EL == EL0 then UNDEFINED; elsif PSTATE.EL == EL1 then UNDEFINED; elsif PSTATE.EL == EL2 then UNDEFINED; elsif PSTATE.EL == EL3 then TLBI_ALL(SecurityStateAtEL(EL3), Regime_EL3, Shareability_Inner, TLBI_ExcludeXS);




3001/0907/2020 15:0757; ccead0cb9f089f9ceec50268e82aec9e7104721180324f0b9997bede489cc15ad1565345720bcd2a

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