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TLBIMVAAL, TLB Invalidate by VA, All ASID, Last level

The TLBIMVAAL characteristics are:

Purpose

Invalidate all cached copies of translation table entries from TLBs that meet the following requirements:

  • The entry is a stage 1 translation table entry, from the final level of the translation table walk.
  • The entry would be used to translate the specified address.
  • If EL2 is implemented and enabled in the current Security state, the entry would be used with the current VMID.

From the entries that match these requirement, the entries that are invalidated are required for the following translation regime:

  • If executed at Secure EL1 when EL3 is using AArch64, the Secure EL1&0 translation regime.
  • If executed in Secure state when EL3 is using AArch32, the Secure PL1&0 translation regime.
  • If executed in Non-secure state, the Non-secure PL1&0 translation regime.

The invalidation only applies to the PE that executes this instruction.

Configuration

Note

This System instruction is not implemented in architecture versions before Armv8.

Attributes

TLBIMVAAL is a 32-bit System instruction.

Field descriptions

The TLBIMVAAL input value bit assignments are:

313029282726252423222120191817161514131211109876543210
VA000000000000

VA, bits [31:12]

Virtual address to match. Any unlocked TLB entries that match the VA will be affected by this operation, regardless of the ASID.

Bits [11:0]

Reserved, RES0.

Executing the TLBIMVAAL instruction

Accesses to this instruction use the following encodings:

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

opc1opc2CRncoprocCRm
0b0000b1110b10000b11110b0111
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);
    elsif EL2Enabled() && ELUsingAArch32(EL2) && HCR.FB == '1' then
        TLBIMVAALIS(R[t]);
    else
        TLBIMVAAL(R[t]);
elsif PSTATE.EL == EL2 then
    TLBIMVAAL(R[t]);
elsif PSTATE.EL == EL3 then
    TLBIMVAAL(R[t]);
              


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