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IC IALLUIS, Instruction Cache Invalidate All to PoU, Inner Shareable

The IC IALLUIS characteristics are:

Purpose

Invalidate all instruction caches in Inner Shareable domain to Point of Unification.

Configuration

AArch64 System instruction IC IALLUIS performs the same function as AArch32 System instruction ICIALLUIS.

Attributes

IC IALLUIS is a 64-bit System instruction.

Field descriptions

IC IALLUIS ignores the value in the register specified by the instruction encoding. Software does not have to write a value to the register before issuing this instruction.

Executing the IC IALLUIS instruction

Accesses to this instruction use the following encodings:

IC IALLUIS{, <Xt>}

Rtop0op1op2CRnCRm
0b111110b010b0000b0000b01110b0001
if PSTATE.EL == EL0 then
    UNDEFINED;
elsif PSTATE.EL == EL1 then
    if EL2Enabled() && !ELUsingAArch32(EL2) && HCR_EL2.TPU == '1' then
        AArch64.SystemAccessTrap(EL2, 0x18);
    elsif EL2Enabled() && !ELUsingAArch32(EL2) && HCR_EL2.TICAB == '1' then
        AArch64.SystemAccessTrap(EL2, 0x18);
    else
        IC_IALLUIS();
elsif PSTATE.EL == EL2 then
    IC_IALLUIS();
elsif PSTATE.EL == EL3 then
    IC_IALLUIS();
              


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