ERXFR_EL1, Selected Error Record Feature Register

The ERXFR_EL1 characteristics are:

Purpose

Accesses ERR<n>FR for the error record <n> selected by ERRSELR_EL1.SEL.

Configuration

AArch64 System register ERXFR_EL1 bits [31:0] are architecturally mapped to AArch32 System register ERXFR[31:0] .

AArch64 System register ERXFR_EL1 bits [63:32] are architecturally mapped to AArch32 System register ERXFR2[31:0] .

This register is present only when FEAT_RAS is implemented. Otherwise, direct accesses to ERXFR_EL1 are UNDEFINED.

Attributes

ERXFR_EL1 is a 64-bit register.

Field descriptions

The ERXFR_EL1 bit assignments are:

6362616059585756555453525150494847464544434241403938373635343332
ERR<n>FR
ERR<n>FR
313029282726252423222120191817161514131211109876543210

Bits [63:0]

ERXFR_EL1 accesses ERR<n>FR, where <n> is the value in ERRSELR_EL1.SEL.

Accessing the ERXFR_EL1

If ERRIDR_EL1.NUM == 0x0000 or ERRSELR_EL1.SEL is set to a value greater than or equal to ERRIDR_EL1.NUM, then one of the following occurs:

Accesses to this register use the following encodings:

MRS <Xt>, ERXFR_EL1

op0op1CRnCRmop2
0b110b0000b01010b01000b000

if PSTATE.EL == EL0 then UNDEFINED; elsif PSTATE.EL == EL1 then if Halted() && HaveEL(EL3) && EDSCR.SDD == '1' && boolean IMPLEMENTATION_DEFINED "EL3 trap priority when SDD == '1'" && SCR_EL3.TERR == '1' then UNDEFINED; elsif EL2Enabled() && HCR_EL2.TERR == '1' then AArch64.SystemAccessTrap(EL2, 0x18); elsif EL2Enabled() && (!HaveEL(EL3) || SCR_EL3.FGTEn == '1') && HFGRTR_EL2.ERXFR_EL1 == '1' then AArch64.SystemAccessTrap(EL2, 0x18); elsif HaveEL(EL3) && SCR_EL3.TERR == '1' then if Halted() && EDSCR.SDD == '1' then UNDEFINED; else AArch64.SystemAccessTrap(EL3, 0x18); else return ERXFR_EL1; elsif PSTATE.EL == EL2 then if Halted() && HaveEL(EL3) && EDSCR.SDD == '1' && boolean IMPLEMENTATION_DEFINED "EL3 trap priority when SDD == '1'" && SCR_EL3.TERR == '1' then UNDEFINED; elsif HaveEL(EL3) && SCR_EL3.TERR == '1' then if Halted() && EDSCR.SDD == '1' then UNDEFINED; else AArch64.SystemAccessTrap(EL3, 0x18); else return ERXFR_EL1; elsif PSTATE.EL == EL3 then return ERXFR_EL1;




30/09/2020 15:07; ccead0cb9f089f9ceec50268e82aec9e71047211

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