The ITLBIMVA characteristics are:
Invalidate all cached copies of translation table entries from instruction 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 only applies to the PE that executes this System instruction.
Arm deprecates the use of this System instruction. It is only provided for backwards compatibility with earlier versions of the Arm architecture.
This instruction is present only when AArch32 is supported at any Exception level. Otherwise, direct accesses to ITLBIMVA are UNDEFINED.
ITLBIMVA is a 32-bit System instruction.
The ITLBIMVA input value bit assignments are:
31 | 30 | 29 | 28 | 27 | 26 | 25 | 24 | 23 | 22 | 21 | 20 | 19 | 18 | 17 | 16 | 15 | 14 | 13 | 12 | 11 | 10 | 9 | 8 | 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 |
VA | RES0 | ASID |
Virtual address to match. Any TLB entries that match the ASID value and VA value will be affected by this System instruction.
Reserved, RES0.
ASID value to match. Any TLB entries that match the ASID value and VA value will be affected by this System instruction.
Global TLB entries that match the VA value will be affected by this operation, regardless of the value of the ASID field.
Accesses to this instruction use the following encodings:
coproc | opc1 | CRn | CRm | opc2 |
---|---|---|---|---|
0b1111 | 0b000 | 0b1000 | 0b0101 | 0b001 |
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.TTLB == '1' then AArch32.TakeHypTrapException(0x03); else if IsFeatureImplemented(FEAT_XS) && !ELUsingAArch32(EL2) && IsFeatureImplemented(FEAT_HCX) && IsHCRXEL2Enabled() && HCRX_EL2.FnXS == '1' then AArch32.ITLBI_VA(SecurityStateAtEL(EL1), Regime_EL10, VMID[], Shareability_NSH, TLBILevel_Any, TLBI_ExcludeXS, R[t]); else AArch32.ITLBI_VA(SecurityStateAtEL(EL1), Regime_EL10, VMID[], Shareability_NSH, TLBILevel_Any, TLBI_AllAttr, R[t]); elsif PSTATE.EL == EL2 then AArch32.ITLBI_VA(SecurityStateAtEL(EL1), Regime_EL10, VMID[], Shareability_NSH, TLBILevel_Any, TLBI_AllAttr, R[t]); elsif PSTATE.EL == EL3 then AArch32.ITLBI_VA(SecurityStateAtEL(EL3), Regime_EL30, VMID_NONE, Shareability_NSH, TLBILevel_Any, TLBI_AllAttr, R[t]);
30/03/2021 20:51; e3551d56dc294a4d55296a6c10544191ada08a8e
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