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

This instruction has no applicable fields.

The value in the register specified by <Xt> is ignored.

Executing the IC IALLUIS instruction

The Rt field should be set to 0b11111. If the Rt field is not set to 0b11111, it is CONSTRAINED UNPREDICTABLE whether:

Accesses to this instruction use the following encodings in the System instruction encoding space:

IC IALLUIS{, <Xt>}

op0op1CRnCRmop2
0b010b0000b01110b00010b000

if PSTATE.EL == EL0 then UNDEFINED; elsif PSTATE.EL == EL1 then if EL2Enabled() && HCR_EL2.TPU == '1' then AArch64.SystemAccessTrap(EL2, 0x18); elsif EL2Enabled() && HCR_EL2.TICAB == '1' then AArch64.SystemAccessTrap(EL2, 0x18); elsif EL2Enabled() && (!HaveEL(EL3) || SCR_EL3.FGTEn == '1') && HFGITR_EL2.ICIALLUIS == '1' then AArch64.SystemAccessTrap(EL2, 0x18); else IC_IALLUIS(); elsif PSTATE.EL == EL2 then IC_IALLUIS(); elsif PSTATE.EL == EL3 then IC_IALLUIS();


30/06/2021 09:39; 4f5dd962f4e34e1ac282f76da4d6e7fc4cab087e

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