The DBGAUTHSTATUS characteristics are:
Provides information about the state of the IMPLEMENTATION DEFINED authentication interface for debug.
AArch32 System register DBGAUTHSTATUS bits [31:0] are architecturally mapped to AArch64 System register DBGAUTHSTATUS_EL1[31:0] .
AArch32 System register DBGAUTHSTATUS bits [31:0] are architecturally mapped to External register DBGAUTHSTATUS_EL1[31:0] .
This register is required in all implementations.
DBGAUTHSTATUS is a 32-bit register.
The DBGAUTHSTATUS bit assignments are:
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 |
RES0 | SNID | SID | NSNID | NSID |
Reserved, RES0.
Secure Non-Invasive Debug.
This field has the same value as DBGAUTHSTATUS.SID.
Secure Non-Invasive Debug.
SNID | Meaning |
---|---|
0b00 |
Not implemented. EL3 is not implemented and the Effective value of SCR.NS is 1. |
0b10 |
Implemented and disabled. ExternalSecureNoninvasiveDebugEnabled() == FALSE. |
0b11 |
Implemented and enabled. ExternalSecureNoninvasiveDebugEnabled() == TRUE. |
All other values are reserved.
Secure Invasive Debug.
SID | Meaning |
---|---|
0b00 |
Not implemented. EL3 is not implemented and the Effective value of SCR_EL3.NS is 1. |
0b10 |
Implemented and disabled. ExternalSecureInvasiveDebugEnabled() == FALSE. |
0b11 |
Implemented and enabled. ExternalSecureInvasiveDebugEnabled() == TRUE. |
All other values are reserved.
Non-secure Non-invasive debug.
NSNID | Meaning |
---|---|
0b00 |
Not implemented. EL3 is not implemented and the Effective value of SCR.NS is 0. |
0b11 |
Implemented and enabled. EL3 is implemented or the Effective value of SCR.NS is 1. |
All other values are reserved.
Non-secure Non-Invasive Debug.
NSNID | Meaning |
---|---|
0b00 |
Not implemented. EL3 is not implemented and the Effective value of SCR.NS is 0 |
0b10 |
Implemented and disabled. ExternalNoninvasiveDebugEnabled() == FALSE. |
0b11 |
Implemented and enabled. ExternalNoninvasiveDebugEnabled() == TRUE. |
All other values are reserved.
Non-secure Invasive Debug.
NSID | Meaning |
---|---|
0b00 |
Not implemented. EL3 is not implemented or the Effective value of SCR_EL3.NS is 0. |
0b10 |
Implemented and disabled. ExternalInvasiveDebugEnabled() == FALSE. |
0b11 |
Implemented and enabled. ExternalInvasiveDebugEnabled() == TRUE. |
All other values are reserved.
Accesses to this register use the following encodings:
coproc | opc1 | CRn | CRm | opc2 |
---|---|---|---|---|
0b1110 | 0b000 | 0b0111 | 0b1110 | 0b110 |
if PSTATE.EL == EL0 then UNDEFINED; elsif PSTATE.EL == EL1 then if EL2Enabled() && !ELUsingAArch32(EL2) && MDCR_EL2.<TDE,TDA> != '00' then AArch64.AArch32SystemAccessTrap(EL2, 0x05); elsif EL2Enabled() && ELUsingAArch32(EL2) && HDCR.<TDE,TDA> != '00' then AArch32.TakeHypTrapException(0x05); elsif HaveEL(EL3) && !ELUsingAArch32(EL3) && MDCR_EL3.TDA == '1' then AArch64.AArch32SystemAccessTrap(EL3, 0x05); else return DBGAUTHSTATUS; elsif PSTATE.EL == EL2 then if HaveEL(EL3) && !ELUsingAArch32(EL3) && MDCR_EL3.TDA == '1' then AArch64.AArch32SystemAccessTrap(EL3, 0x05); else return DBGAUTHSTATUS; elsif PSTATE.EL == EL3 then return DBGAUTHSTATUS;
27/03/2019 21:59; e5e4db499bf9867a4b93324c4dbac985d3da9376
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