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IC IALLU, Instruction Cache Invalidate All to PoU

The IC IALLU characteristics are:

Purpose

Invalidate all instruction caches to Point of Unification.

Configuration

AArch64 System instruction IC IALLU performs the same function as AArch32 System instruction ICIALLU.

Attributes

IC IALLU 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 IC IALLU 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:

Accesses to this instruction use the following encodings:

IC IALLU{, <Xt>}

op0op1CRnCRmop2
0b010b0000b01110b01010b000

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.TOCU == '1' then AArch64.SystemAccessTrap(EL2, 0x18); elsif EL2Enabled() && !ELUsingAArch32(EL2) && (!HaveEL(EL3) || SCR_EL3.FGTEn == '1') && HFGITR_EL2.ICIALLU == '1' then AArch64.SystemAccessTrap(EL2, 0x18); elsif EL2Enabled() && !ELUsingAArch32(EL2) && HCR_EL2.FB == '1' then IC_IALLUIS(); else IC_IALLU(); elsif PSTATE.EL == EL2 then IC_IALLU(); elsif PSTATE.EL == EL3 then IC_IALLU();




0114/0704/2020 1520:5709; 80324f0b9997bede489cc15ad1565345720bcd2adff0d3e465311dd9ce541b6a1e1d6c05a0668645

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