Get Watchdog Timer
更新时间： 2026/08/06
在Gitcode上查看源码Get Watchdog Timer
Change History
| openUBMC Version | Revision Date | Description |
|---|---|---|
| 25.06 | 2025/06/26 | Initial draft: add command details |
Basic Information
Function Description
Obtains the watchdog timer.
Privilege
ReadOnly
Command Information
Request Information
| Byte | Data Field |
|---|---|
| NetFn | App 06h |
| CMD | 25h |
Response Information
| Byte | Data Field |
|---|---|
| 1 | Completion Code |
| 2 | Timer Use [7]-1b =don't log [6]-1b=timer is started (running) 0b=timer is stopped [5:3]-reserved [2:0]-timer use (logged on expiration if don't log bit=0b) 000b=reserved 001b=BIOS FRB2 010b=BIOS/POST 011b=OS Load 100b=SMS/OS 101b=OEM 110b,111b=reserved |
| 3 | Timer Actions [7]-reserved [6:4]-pre-timeout interrupt 000b=none 001b=SMI (if implemented) 010b=NMI/Diagnostic Interrupt (if implemented) 011b=Messaging Interrupt (this would be the same interrupt as allocated to the messaging interface) 100b,111b=reserved [3]-reserved [2:0]-timeout action 000b=no action 001b=Hard Reset 010b=Power Down 011b=Power Cycle 100b,111b=reserved |
| 4 | Pre-timeout interval in seconds. '1' based. |
| 5 | Timer Use Expiration flags (1b=timer expired while associated 'use' was selected.) [7]-reserved [6]-reserved [5]-OEM [4]-SMS/OS [3]-OS Load [2]-BIOS/POST [1]-BIOS FRB2 [0]-reserved |
| 6 | Initial countdown value, lsbyte (100 ms/count) |
| 7 | Initial countdown, msbyte |
| 8 | Present countdown value, lsbyte. The initial countdown value and present countdown values should match immediately after the countdown is initialized via a Set Watchdog Timer command and after a Reset Watchdog Timer has been executed. Note that internal delays in the BMC may require software to delay up to 100 ms before seeing the countdown value change and be reflected in the Get Watchdog Timer command. |
| 9 | Present countdown value, msbyte |
Command Example
Obtain the watchdog timer.
Request:
bash
ipmicmd -k "0f 00 06 25" smi 0Response:
text
0f 07 00 25 00 00 00 00 00 00 00 00 00