The ICIMVAU characteristics are:
Invalidate instruction cache line by virtual address to PoU.
AArch32 System instruction ICIMVAU performs the same function as AArch64 System instruction IC IVAU.
This instruction is present only when AArch32 is supported at any Exception level. Otherwise, direct accesses to ICIMVAU are UNDEFINED.
ICIMVAU is a 32-bit System instruction.
The ICIMVAU input value bit assignments are:
31 | 30 | 29 | 28 | 27 | 26 | 25 | 24 | 23 | 22 | 21 | 20 | 19 | 18 | 17 | 16 | 15 | 14 | 13 | 12 | 11 | 10 | 9 | 8 | 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 |
Virtual address to use |
Virtual address to use. No alignment restrictions apply to this VA.
Execution of this instruction might require an address translation from VA to PA, and that translation might fault. For more information, see 'AArch32 instruction cache maintenance instructions (IC*)'.
Accesses to this instruction use the following encodings:
coproc | opc1 | CRn | CRm | opc2 |
---|---|---|---|---|
0b1111 | 0b000 | 0b0111 | 0b0101 | 0b001 |
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.TOCU == '1' then AArch64.AArch32SystemAccessTrap(EL2, 0x03); elsif EL2Enabled() && ELUsingAArch32(EL2) && HCR.TPU == '1' then AArch32.TakeHypTrapException(0x03); elsif EL2Enabled() && ELUsingAArch32(EL2) && HCR2.TOCU == '1' then AArch32.TakeHypTrapException(0x03); else ICIMVAU(R[t]); elsif PSTATE.EL == EL2 then ICIMVAU(R[t]); elsif PSTATE.EL == EL3 then ICIMVAU(R[t]);
30/03/2021 20:51; e3551d56dc294a4d55296a6c10544191ada08a8e
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