Debug Change PE State to EL2 allows the debugger to move the PE into EL2 from a lower Exception level.
DCPS2 is undefined if any of:
When the PE executes DCPS2:
For more information on the operation of the DCPS<n> instructions, see DCPS.
| 15 | 14 | 13 | 12 | 11 | 10 | 9 | 8 | 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 | 15 | 14 | 13 | 12 | 11 | 10 | 9 | 8 | 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 |
| 1 | 1 | 1 | 1 | 0 | 1 | 1 | 1 | 1 | 0 | 0 | 0 | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 |
if !HaveEL(EL2) then UNDEFINED;
if !Halted() || !EL2Enabled() then UNDEFINED; if ELUsingAArch32(EL2) then AArch32.WriteMode(M32_Hyp); PSTATE.E = HSCTLR.EE; ELR_hyp = bits(32) UNKNOWN; HSR = bits(32) UNKNOWN; SPSR_hyp = bits(32) UNKNOWN; DLR = bits(32) UNKNOWN; DSPSR = bits(32) UNKNOWN; else // Targeting EL2 using AArch64 AArch64.MaybeZeroRegisterUppers(); MaybeZeroSVEUppers(EL2); PSTATE.nRW = '0'; PSTATE.SP = '1'; PSTATE.EL = EL2; if IsFeatureImplemented(FEAT_PAN) && SCTLR_EL2.SPAN == '0' && ELIsInHost(EL0) then PSTATE.PAN = '1'; if IsFeatureImplemented(FEAT_UAO) then PSTATE.UAO = '0'; ELR_EL2 = bits(64) UNKNOWN; ESR_EL2 = bits(64) UNKNOWN; SPSR_EL2 = bits(64) UNKNOWN; DLR_EL0 = bits(64) UNKNOWN; DSPSR_EL0 = bits(64) UNKNOWN; // SCTLR_EL2.IESB might be ignored in Debug state. if (IsFeatureImplemented(FEAT_IESB) && SCTLR_EL2.IESB == '1' && !ConstrainUnpredictableBool(Unpredictable_IESBinDebug)) then SynchronizeErrors(); UpdateEDSCRFields(); // Update EDSCR PE state flags
Internal version only: isa v01_31, pseudocode v2024-03_rel ; Build timestamp: 2024-03-25T10:05
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