SPSEL
64-bitTrapWhich exception bank to use at EL2 or EL3: 0 for SP_ELx, 1 for SP_Elx. The upper bank is not used for normal exception entry, which is a distinction that costs people an afternoon the first time they meet it.
Field layout
RES0[63:1]63:1
0
byte 7
byte 6
byte 5
byte 4
byte 3
byte 2
byte 1
byte 0
Current value hover a field to locate it
B7
B6
B5
B4
B3
B2
B1
B0
Fields
| Bits | Field | Bits | Value | Description |
|---|---|---|---|---|
| 63:1 | RES0[63:1] | 63 | 0x0 (0) | Reserved. |
| 0 | SP[0] | 1 | 0x0 | Clear selects the dedicated SP_ELx bank; set selects the general SP_Elx bank. |