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PMOVSSET_EL0

Performance Monitors Overflow Flag Status Set Register

Allows software to set the unsigned overflow flags for the following counters to 1:

Reading from this register shows the current unsigned overflow flag values.

Configuration

AArch64 System register PMOVSSET_EL0 bits [63:0] are architecturally mapped to AArch64 System register PMOVSCLR_EL0[63:0].

AArch64 System register PMOVSSET_EL0 bits [63:0] are architecturally mapped to External register PMOVS[63:0].

AArch64 System register PMOVSSET_EL0 bits [31:0] are architecturally mapped to AArch32 System register PMOVSSET[31:0].

AArch64 System register PMOVSSET_EL0 bits [31:0] are architecturally mapped to AArch32 System register PMOVSR[31:0].

AArch64 System register PMOVSSET_EL0 bits [31:0] are architecturally mapped to External register PMOVSCLR_EL0[31:0].

AArch64 System register PMOVSSET_EL0 bits [31:0] are architecturally mapped to External register PMOVSSET_EL0[31:0].

AArch64 System register PMOVSSET_EL0 bits [63:32] are architecturally mapped to External register PMOVSCLR_EL0[63:32] when FEAT_PMUv3p9 is implemented or FEAT_PMUv3_EXT64 is implemented.

AArch64 System register PMOVSSET_EL0 bits [63:32] are architecturally mapped to External register PMOVSSET_EL0[63:32] when FEAT_PMUv3p9 is implemented or FEAT_PMUv3_EXT64 is implemented.

This register is present only when FEAT_PMUv3 is implemented and FEAT_AA64 is implemented. Otherwise, direct accesses to PMOVSSET_EL0 are UNDEFINED.

Attributes

PMOVSSET_EL0 is a 64-bit register.

Field descriptions

6362616059585756555453525150494847464544434241403938373635343332
313029282726252423222120191817161514131211109876543210
RES0F0
CP30P29P28P27P26P25P24P23P22P21P20P19P18P17P16P15P14P13P12P11P10P9P8P7P6P5P4P3P2P1P0

Bits [63:33]:

Reserved, RES0.

F0, bit [32] when FEAT_PMUv3_ICNTR is implemented:

Unsigned overflow flag for PMICNTR_EL0 set. On writes, allows software to set the unsigned overflow flag for PMICNTR_EL0 to 1. On reads, returns the unsigned overflow flag for PMICNTR_EL0 overflow status.

F0Meaning
0b0

PMICNTR_EL0 has not overflowed.

0b1

PMICNTR_EL0 has overflowed.

The reset behavior of this field is:

Accessing this field has the following behavior:

Otherwise:

Reserved, RES0.

C, bit [31]:

Unsigned overflow flag for PMCCNTR_EL0 set. On writes, allows software to set the unsigned overflow flag for PMCCNTR_EL0 to 1. On reads, returns the unsigned overflow flag for PMCCNTR_EL0 overflow status.

CMeaning
0b0

PMCCNTR_EL0 has not overflowed.

0b1

PMCCNTR_EL0 has overflowed.

PMCR_EL0.LC controls whether an overflow is detected from unsigned overflow of PMCCNTR_EL0[31:0] or unsigned overflow of PMCCNTR_EL0[63:0].

The reset behavior of this field is:

Accessing this field has the following behavior:

P<m>, bit [m], for m = 30 to 0:

Unsigned overflow flag for PMEVCNTR<m>_EL0 set. On writes, allows software to set the unsigned overflow flag for PMEVCNTR<m>_EL0 to 1. On reads, returns the unsigned overflow flag for PMEVCNTR<m>_EL0 overflow status.

P<m>Meaning
0b0

PMEVCNTR<m>_EL0 has not overflowed.

0b1

PMEVCNTR<m>_EL0 has overflowed.

If FEAT_PMUv3p5 is implemented, MDCR_EL2.HLP and PMCR_EL0.LP control whether an overflow is detected from unsigned overflow of PMEVCNTR<m>_EL0[31:0] or unsigned overflow of PMEVCNTR<m>_EL0[63:0].

The reset behavior of this field is:

Accessing this field has the following behavior:

Access Instructions

Accesses to this register use the following encodings in the System register encoding space:

MRS <Xt>, PMOVSSET_EL0

(op0 = 0b11, op1 = 0b011, CRn = 0b1001, CRm = 0b1110, op2 = 0b011)

if !(IsFeatureImplemented(FEAT_PMUv3) && IsFeatureImplemented(FEAT_AA64)) then Undefined(); elsif HaveEL(EL3) && PSTATE.EL != EL3 && EL3SDDUndefPriority() && MDCR_EL3().TPM == '1' then Undefined(); elsif PSTATE.EL == EL0 then if PMUSERENR_EL0().EN == '0' && (!IsFeatureImplemented(FEAT_PMUv3p9) || PMUSERENR_EL0().UEN == '0') then AArch64_SystemAccessTraptoEL1orEL2(0x18); elsif EL2Enabled() && EffectivelyAtEL0NotInHost() && IsFeatureImplemented(FEAT_FGT) && (!HaveEL(EL3) || SCR_EL3().FGTEn == '1') && HDFGRTR_EL2().PMOVS == '1' then AArch64_SystemAccessTrap(EL2, 0x18); elsif EL2Enabled() && MDCR_EL2().TPM == '1' then AArch64_SystemAccessTrap(EL2, 0x18); elsif HaveEL(EL3) && MDCR_EL3().TPM == '1' then if EL3SDDUndef() then Undefined(); else AArch64_SystemAccessTrap(EL3, 0x18); end; else X{64}(t) = PMOVSSET_EL0(); end; elsif PSTATE.EL == EL1 then if EL2Enabled() && IsFeatureImplemented(FEAT_FGT) && (!HaveEL(EL3) || SCR_EL3().FGTEn == '1') && HDFGRTR_EL2().PMOVS == '1' then AArch64_SystemAccessTrap(EL2, 0x18); elsif EL2Enabled() && MDCR_EL2().TPM == '1' then AArch64_SystemAccessTrap(EL2, 0x18); elsif HaveEL(EL3) && MDCR_EL3().TPM == '1' then if EL3SDDUndef() then Undefined(); else AArch64_SystemAccessTrap(EL3, 0x18); end; else X{64}(t) = PMOVSSET_EL0(); end; elsif PSTATE.EL == EL2 then if HaveEL(EL3) && MDCR_EL3().TPM == '1' then if EL3SDDUndef() then Undefined(); else AArch64_SystemAccessTrap(EL3, 0x18); end; else X{64}(t) = PMOVSSET_EL0(); end; elsif PSTATE.EL == EL3 then X{64}(t) = PMOVSSET_EL0(); end;

MSR PMOVSSET_EL0, <Xt>

(op0 = 0b11, op1 = 0b011, CRn = 0b1001, CRm = 0b1110, op2 = 0b011)

if !(IsFeatureImplemented(FEAT_PMUv3) && IsFeatureImplemented(FEAT_AA64)) then Undefined(); elsif HaveEL(EL3) && PSTATE.EL != EL3 && EL3SDDUndefPriority() && MDCR_EL3().TPM == '1' then Undefined(); elsif PSTATE.EL == EL0 then if PMUSERENR_EL0().EN == '0' && (!IsFeatureImplemented(FEAT_PMUv3p9) || PMUSERENR_EL0().UEN == '0') then AArch64_SystemAccessTraptoEL1orEL2(0x18); elsif EL2Enabled() && EffectivelyAtEL0NotInHost() && IsFeatureImplemented(FEAT_FGT) && (!HaveEL(EL3) || SCR_EL3().FGTEn == '1') && HDFGWTR_EL2().PMOVS == '1' then AArch64_SystemAccessTrap(EL2, 0x18); elsif EL2Enabled() && MDCR_EL2().TPM == '1' then AArch64_SystemAccessTrap(EL2, 0x18); elsif HaveEL(EL3) && MDCR_EL3().TPM == '1' then if EL3SDDUndef() then Undefined(); else AArch64_SystemAccessTrap(EL3, 0x18); end; else PMOVSSET_EL0() = X{64}(t); end; elsif PSTATE.EL == EL1 then if EL2Enabled() && IsFeatureImplemented(FEAT_FGT) && (!HaveEL(EL3) || SCR_EL3().FGTEn == '1') && HDFGWTR_EL2().PMOVS == '1' then AArch64_SystemAccessTrap(EL2, 0x18); elsif EL2Enabled() && MDCR_EL2().TPM == '1' then AArch64_SystemAccessTrap(EL2, 0x18); elsif HaveEL(EL3) && MDCR_EL3().TPM == '1' then if EL3SDDUndef() then Undefined(); else AArch64_SystemAccessTrap(EL3, 0x18); end; else PMOVSSET_EL0() = X{64}(t); end; elsif PSTATE.EL == EL2 then if HaveEL(EL3) && MDCR_EL3().TPM == '1' then if EL3SDDUndef() then Undefined(); else AArch64_SystemAccessTrap(EL3, 0x18); end; else PMOVSSET_EL0() = X{64}(t); end; elsif PSTATE.EL == EL3 then PMOVSSET_EL0() = X{64}(t); end;


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