TLBI ALLE2, TLB Invalidate All, EL2

The TLBI ALLE2 characteristics are:

Purpose

If EL2 is implemented and enabled in the current Security state, invalidates cached copies of translation table entries from TLBs that meet all the following requirements:

The invalidation only applies to the PE that executes this System instruction.

Configuration

Attributes

TLBI ALLE2 is a 64-bit System instruction.

Field descriptions

TLBI ALLE2 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 TLBI ALLE2 instruction

Accesses to this instruction use the following encodings:

TLBI ALLE2{, <Xt>}

op0op1CRnCRmop2Rt
0b010b1000b10000b01110b0000b11111

if PSTATE.EL == EL0 then UNDEFINED; elsif PSTATE.EL == EL1 then UNDEFINED; 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 TLBI_ALLE2(); elsif PSTATE.EL == EL3 then if !EL2Enabled() then UNDEFINED; elsif IsFeatureImplemented("Morello") && !CapIsSystemAccessEnabled() && !Halted() then AArch64.SystemAccessTrap(EL3, 0x18); else TLBI_ALLE2();




12/01/2022 09:56; 05a4944b4b04e7ab50def8c126b479d22136f35b

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