The BPIMVA characteristics are:
Invalidate virtual address from branch predictors.
This instruction is present only when EL1 is capable of using AArch32. Otherwise, direct accesses to BPIMVA are UNDEFINED.
In an implementation where the branch predictors are architecturally invisible, this instruction can execute as a NOP.
BPIMVA is a 32-bit System instruction.
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.
Accesses to this instruction use the following encodings in the System instruction encoding space:
coproc | opc1 | CRn | CRm | opc2 |
---|---|---|---|---|
0b1111 | 0b000 | 0b0111 | 0b0101 | 0b111 |
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); else BPIMVA(R[t]); elsif PSTATE.EL == EL2 then BPIMVA(R[t]); elsif PSTATE.EL == EL3 then BPIMVA(R[t]);
30/09/2022 15:58; 21c5a6dd0fdaf10a712e2f2d6fffbdbd66d4d96f
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