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

IC IALLU 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 IALLU instruction

Accesses to this instruction use the following encodings:

IC IALLU{, <Xt>}

op0op1CRnCRmop2Rt
0b010b0000b01110b01010b0000b11111

if PSTATE.EL == EL0 then UNDEFINED; elsif PSTATE.EL == EL1 then if IsFeatureImplemented("Morello") && !CapIsSystemAccessEnabled() && !Halted() then if TargetELForCapabilityExceptions() == EL1 then AArch64.SystemAccessTrap(EL1, 0x18); elsif TargetELForCapabilityExceptions() == EL2 then AArch64.SystemAccessTrap(EL2, 0x18); else AArch64.SystemAccessTrap(EL3, 0x18); elsif 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) && HCR_EL2.FB == '1' then IC_IALLUIS(); else IC_IALLU(); elsif PSTATE.EL == EL2 then if IsFeatureImplemented("Morello") && !CapIsSystemAccessEnabled() && !Halted() then if TargetELForCapabilityExceptions() == EL2 then AArch64.SystemAccessTrap(EL2, 0x18); else AArch64.SystemAccessTrap(EL3, 0x18); else IC_IALLU(); elsif PSTATE.EL == EL3 then if IsFeatureImplemented("Morello") && !CapIsSystemAccessEnabled() && !Halted() then AArch64.SystemAccessTrap(EL3, 0x18); else IC_IALLU();




12/01/2022 09:56; 05a4944b4b04e7ab50def8c126b479d22136f35b

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