TLBIALLNSNHIS, TLB Invalidate All, Non-Secure Non-Hyp, Inner Shareable

The TLBIALLNSNHIS characteristics are:

Purpose

If EL2 is implemented, invalidate all cached copies of translation table entries from TLBs that are from any level of the translation table walk that would be required for stage 1 or stage 2 of the Non-secure PL1&0 translation regime, regardless of the associated VMID.

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

Configuration

This instruction is present only when FEAT_AA32EL2 is implemented. Otherwise, direct accesses to TLBIALLNSNHIS are UNDEFINED.

Attributes

TLBIALLNSNHIS is a 32-bit System instruction.

Field descriptions

This instruction has no applicable fields.

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

Executing TLBIALLNSNHIS

If this instruction is executed in a Secure privileged mode other than Monitor mode, then the behavior is CONSTRAINED UNPREDICTABLE, and one of the following behaviors must occur:

Accesses to this instruction use the following encodings in the System instruction encoding space:

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

coprocopc1CRnCRmopc2
0b11110b1000b10000b00110b100

if !IsFeatureImplemented(FEAT_AA32EL2) then UNDEFINED; elsif PSTATE.EL == EL0 then UNDEFINED; elsif PSTATE.EL == EL1 then if EL2Enabled() && IsFeatureImplemented(FEAT_AA64EL2) && !ELUsingAArch32(EL2) && HSTR_EL2.T8 == '1' then AArch64.AArch32SystemAccessTrap(EL2, 0x03); elsif EL2Enabled() && IsFeatureImplemented(FEAT_AA32EL2) && ELUsingAArch32(EL2) && HSTR.T8 == '1' then AArch32.TakeHypTrapException(0x03); else UNDEFINED; elsif PSTATE.EL == EL2 then AArch32.TLBI_ALL(SecurityStateAtEL(EL1), Regime_EL10, Broadcast_ISH, TLBI_AllAttr); elsif PSTATE.EL == EL3 then if !HaveEL(EL2) then UNDEFINED; else AArch32.TLBI_ALL(SS_NonSecure, Regime_EL10, Broadcast_ISH, TLBI_AllAttr);


21/03/2025 17:52; 154105dd5041532b480d9ef0c018b8420cbe5c19

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