Get Memory Soft Isolation Address
更新时间： 2026/08/06
在Gitcode上查看源码Get Memory Soft Isolation Address
Change History
| openUBMC Version | Revision Date | Description |
|---|---|---|
| 25.06 | 2025/06/26 | Initial draft: add command details |
Basic Information
Function Description
Obtaining the Memory Soft Isolation Address
Privilege
DiagnoseMgnt
Command Information
Request Information
| Byte | Data Field |
|---|---|
| NetFn | 30h |
| CMD | 92h |
| 1:3 | Manufacturer ID, LS Byte first. The length is fixed to three bytes. For example, if the vendor ID is 2011 and the corresponding hexadecimal value is 0x0007DB, the first byte is DBh, the second byte is 07h, and the third byte is 00h. |
| 4 | Sub command, sub command=38h |
| 5 | Domain 0- Obtain the memory soft isolation address. 1: The BIOS obtains the UCE address of the FDM memory. |
| 6:9 | Capability of obtaining the faulty address from the specified memory is reserved |
| 10:11 | Read offset, starting from 0 and LSB first |
| 12 | Read length. If the length is unknown, set it to 0xff. |
Response Information
| Byte | Data Field |
|---|---|
| 1 | Completion Code D6h-indicates that the command is not registered on the BMC and the version is not matched. The BIOS SMI interrupt processing function automatically selects a BT channel to report fault information based on the returned value.If the value is obtained in the boot phase, the isolation function is not supported and the isolation operation is not performed. |
| 2:4 | Manufacturer ID, LS Byte first. The length is fixed to three bytes. For example, if the vendor ID is 2011 and the corresponding hexadecimal value is 0x0007DB, the first byte is DBh, the second byte is 07h, and the third byte is 00h. |
| When the value of Domain in a request message is 0, the format of the corresponding response message is as follows: | |
| 5 | [7]: resvered [6:1]: segment, 1-based. For high-performance servers such as 9032, each segment indicates a 4-socket partition. The BDF is numbered in the 4-socket system. To be compatible with earlier products and facilitate unified BMC management, the 8100 and other 4-socket or lower-socket systems do not need to distinguish BDFs by segment. Therefore, the segment is always 0. [0]: whether the frame is the last frame 0-last frame 1-casecade frame |
| 6 | datalen: length of the returned data, which is the offset address read by the BIOS next time. |
| 7:14 | Soft-isolated memory address 0, 8-byte physical address after 1 MB alignment |
| 15 | CPU ID of memory address 0 for soft isolation |
| 16 | Channel ID of memory address 0 for soft isolation |
| 17 | DIMM ID of memory address 0 for soft isolation |
| 18 | Reserved. The default value is 0. |
| 19:26 | Soft isolated memory address 1, 8-byte physical address after 1 MB alignment |
| 27 | CPU ID of soft-isolated memory address 1 |
| 28 | Channel ID of memory address 1 for soft isolation |
| 29 | DIMM ID of memory address 1 for soft isolation |
| 30 | Reserved. The default value is 0. |
| ..... | - |
| 7+12N:14+12N | Soft-isolated memory address 0, 8-byte physical address after 1 MB alignment |
| 15+12N | CPU ID of memory address 0 for soft isolation |
| 16+12N | Channel ID of memory address 0 for soft isolation |
| 17+12N | DIMM ID of memory address 0 for soft isolation |
| 18+12N | Reserved. The default value is 0. |
| If the value of Domain in a request message is 1, the format of the corresponding response message is as follows: | |
| 5 | datalen: length of the returned data |
| 6 | Mem0cpu |
| 7 | Mem0channel |
| 8 | Mem0dimm |
| ..... | - |
| 1+3N+5 | MemNcpu |
| 2+3N+5 | MemNchannel |
| 3+3N+5 | MemNdimm |
Command Example
Obtain the current soft isolation address.
Request:
bash
ipmicmd -k "0f 00 30 92 db 07 00 38 00 00 00 00 00 00 00 01" smi 0Response:
text
0f 31 00 92 00 db 07 00 00 00