OSLAR_EL1
64-bitDebugLock access to the debug registers, in the same way ASLRL_EL1 locks the architectural feature registers: write a magic value to lock, and a different one to unlock. Once locked, a debugger cannot change breakpoints behind the operating system's back.
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 | OSL[0:0] | 1 | 0x0 | Lock status. Write-only, so it reads as zero; the write takes effect whether or not the previous state allowed it. |