You copied the Doc URL to your clipboard.

TLBI VMALLE1, TLB Invalidate by VMID, All at stage 1, EL1

The TLBI VMALLE1 characteristics are:

Purpose

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

  • The entry is a stage 1 translation table entry, from any level of the translation table walk.

  • When EL2 is implemented and enabled in the Security state described by the current value of SCR_EL3.NS:

    • If HCR_EL2.{E2H, TGE} is not {1, 1}, the entry would be used with the current VMID and would be required to translate the specified VA using the EL1&0 translation regime.

    • If HCR_EL2.{E2H, TGE} is {1, 1}, the entry would be required to translate the specified VA using the EL2&0 translation regime.

  • When EL2 is not implemented or is disabled in the current Security state, the entry would be required to translate the specified VA using the EL1&0 translation regime.

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

Note

For the EL1&0 translation regimes, the invalidation applies to both global entries, and non-global entries with any ASID.

Configuration

There are no configuration notes.

Attributes

TLBI VMALLE1 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 VMALLE1 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:

  • The instruction is UNDEFINED.

  • The instruction behaves as if the Xt field is set to 0b11111.

Accesses to this instruction use the following encodings:

TLBI VMALLE1{, <Xt>}

op0op1CRnCRmop2
0b010b0000b10000b01110b000
if PSTATE.EL == EL0 then
    UNDEFINED;
elsif PSTATE.EL == EL1 then
    if EL2Enabled() && HCR_EL2.TTLB == '1' then
        AArch64.SystemAccessTrap(EL2, 0x18);
    elsif EL2Enabled() && (!HaveEL(EL3) || SCR_EL3.FGTEn == '1') && HFGITR_EL2.TLBIVMALLE1 == '1' then
        AArch64.SystemAccessTrap(EL2, 0x18);
    elsif EL2Enabled() && HCR_EL2.FB == '1' then
        TLBI_VMALLE1IS();
    else
        TLBI_VMALLE1();
elsif PSTATE.EL == EL2 then
    TLBI_VMALLE1();
elsif PSTATE.EL == EL3 then
    TLBI_VMALLE1();


Previous Next