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The ICIALLUIS characteristics are:
Invalidate all instruction caches Inner Shareable to PoU. If branch predictors are architecturally visible, also flush branch predictors.
AArch32 System instruction ICIALLUIS performs the same function as AArch64 System instruction IC IALLUIS.
This instruction is present only when AArch32 is supported at any Exception level. Otherwise, direct accesses to ICIALLUIS are UNKNOWN.
ICIALLUIS is a 32-bit System instruction.
ICIALLUIS 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.
The PE ignores the value of <Rt>. Software does not have to write a value to this register before issuing this instruction.
Accesses to this instruction use the following encodings:
coproc | opc1 | CRn | CRm | opc2 |
---|---|---|---|---|
0b1111 | 0b000 | 0b0111 | 0b0001 | 0b000 |
if PSTATE.EL == EL0 then
UNDEFINED;
elsif PSTATE.EL == EL1 then
if EL2Enabled() && !ELUsingAArch32(EL2) && HSTR_EL2.T7 == '1' then
AArch64.AArch32SystemAccessTrap(EL2, 0x03);
elsif EL2Enabled() && ELUsingAArch32(EL2) && HSTR.T7 == '1' then
AArch32.TakeHypTrapException(0x03);
elsif EL2Enabled() && !ELUsingAArch32(EL2) && HCR_EL2.TPU == '1' then
AArch64.AArch32SystemAccessTrap(EL2, 0x03);
elsif EL2Enabled() && !ELUsingAArch32(EL2) && HCR_EL2.TICAB == '1' then
AArch64.AArch32SystemAccessTrap(EL2, 0x03);
elsif EL2Enabled() && !ELUsingAArch32(EL2) && HCR_EL2.TOCU == '1' then
AArch64.AArch32SystemAccessTrap(EL2, 0x03);
elsif EL2Enabled() && !ELUsingAArch32(EL2) && HCR.TPU == '1' then
AArch32.TakeHypTrapException(0x03);
elsif EL2Enabled() && ELUsingAArch32(EL2) && HCR2.TICAB == '1' then
AArch32.TakeHypTrapException(0x03);
elsif EL2Enabled() && ELUsingAArch32(EL2) && HCR2.TOCU == '1' then
AArch32.TakeHypTrapException(0x03);
else
ICIALLU();
elsif PSTATE.EL == EL2 then
ICIALLU();
elsif PSTATE.EL == EL3 then
ICIALLU();
1327/1209/2019 1518:1348; 391b5248b29fb2f001ef74792eaacbd6fc72f2116134483bd14dc8c12a99c984cbfe3431cc1c9707
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