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TLBIASIDIS: TLB Invalidate by ASID match, Inner Shareable

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 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 EL1 is capable of using AArch32. Otherwise, direct accesses to TLBIASIDIS are UNDEFINED.

Attributes

TLBIASIDIS is a 32-bit System instruction.

Field descriptions

313029282726252423222120191817161514131211109876543210
RES0ASID

Bits [31:8]

Reserved, RES0.

ASID, bits [7:0]

ASID value to match. Any TLB entries for non-global pages that match the ASID values will be affected by this System instruction.

Executing TLBIASIDIS

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

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

coprocopc1CRnCRmopc2
0b11110b0000b10000b00110b010

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_EL2.TTLBIS == '1' then AArch64.AArch32SystemAccessTrap(EL2, 0x03); elsif EL2Enabled() && ELUsingAArch32(EL2) && HCR.TTLB == '1' then AArch32.TakeHypTrapException(0x03); elsif EL2Enabled() && ELUsingAArch32(EL2) && HCR2.TTLBIS == '1' then AArch32.TakeHypTrapException(0x03); else if IsFeatureImplemented(FEAT_XS) && !ELUsingAArch32(EL2) && IsFeatureImplemented(FEAT_HCX) && IsHCRXEL2Enabled() && HCRX_EL2.FnXS == '1' then AArch32.TLBI_ASID(SecurityStateAtEL(EL1), Regime_EL10, VMID[], Shareability_ISH, TLBI_ExcludeXS, R[t]); else AArch32.TLBI_ASID(SecurityStateAtEL(EL1), Regime_EL10, VMID[], Shareability_ISH, TLBI_AllAttr, R[t]); elsif PSTATE.EL == EL2 then AArch32.TLBI_ASID(SecurityStateAtEL(EL1), Regime_EL10, VMID[], Shareability_ISH, TLBI_AllAttr, R[t]); elsif PSTATE.EL == EL3 then AArch32.TLBI_ASID(SecurityStateAtEL(EL3), Regime_EL30, VMID_NONE, Shareability_ISH, TLBI_AllAttr, R[t]);