ERXPFGF_EL1, Selected Pseudo-fault Generation Feature Register
The ERXPFGF_EL1 characteristics are:
Purpose
Accesses the ERR<n>PFGF register for the error record selected by ERRSELR_EL1.SEL.
Configuration
This register is present only when ARMv8.4-RAS is implemented. Otherwise, direct accesses to ERXPFGF_EL1 are UNDEFINED.
Attributes
ERXPFGF_EL1 is a 64-bit register.
Field descriptions
The ERXPFGF_EL1 bit assignments are:
| 63 | 62 | 61 | 60 | 59 | 58 | 57 | 56 | 55 | 54 | 53 | 52 | 51 | 50 | 49 | 48 | 47 | 46 | 45 | 44 | 43 | 42 | 41 | 40 | 39 | 38 | 37 | 36 | 35 | 34 | 33 | 32 |
| ERR<n>PFGF | |||||||||||||||||||||||||||||||
| ERR<n>PFGF | |||||||||||||||||||||||||||||||
| 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 |
Bits [63:0]
ERXPFGF_EL1 accesses ERR<n>PFGF, where n is the value in ERRSELR_EL1.SEL.
Accessing the ERXPFGF_EL1
If ERRIDR_EL1.NUM == 0 or ERRSELR_EL1.SEL is set to a value greater than or equal to ERRIDR_EL1.NUM, then one of the following occurs:
-
An UNKNOWN record is selected.
-
ERXPFGF_EL1 is RAZ/WI.
-
Direct reads and writes of ERXPFGF_EL1 are NOPs.
-
Direct reads and writes of ERXPFGF_EL1 are UNDEFINED.
If ERRSELR_EL1.SEL selects an error record that does not implement the RAS Common Fault Injection Model Extension, then one of the following occurs:
-
ERXPFGF_EL1 is RAZ/WI.
-
Direct reads and writes of ERXPFGF_EL1 are NOPs.
-
Direct reads and writes of ERXPFGF_EL1 are UNDEFINED.
An error record does not implement the RAS Common Fault Injection Model Extension when ERR<n>FR.INJ == 0b00.
Accesses to this register use the following encodings:
MRS <Xt>, ERXPFGF_EL1
| op0 | op1 | CRn | CRm | op2 |
|---|---|---|---|---|
| 0b11 | 0b000 | 0b0101 | 0b0100 | 0b100 |
if PSTATE.EL == EL0 then
UNDEFINED;
elsif PSTATE.EL == EL1 then
if EL2Enabled() && !ELUsingAArch32(EL2) && HCR_EL2.FIEN == '0' then
AArch64.SystemAccessTrap(EL2, 0x18);
elsif HaveEL(EL3) && !ELUsingAArch32(EL3) && SCR_EL3.FIEN == '0' then
AArch64.SystemAccessTrap(EL3, 0x18);
else
return ERXPFGF_EL1;
elsif PSTATE.EL == EL2 then
if HaveEL(EL3) && !ELUsingAArch32(EL3) && SCR_EL3.FIEN == '0' then
AArch64.SystemAccessTrap(EL3, 0x18);
else
return ERXPFGF_EL1;
elsif PSTATE.EL == EL3 then
return ERXPFGF_EL1;