Intel® Core™ Ultra Series 3 Processors CFG and MEM Registers
| ID | Date | Version | Classification |
|---|---|---|---|
| 872351 | 04/14/2026 | 001 | Public |
Table Offsets 0 (OFFSETS0) – Offset 60
Hardware implementations may place configuration tables in any otherwise unassigned address ranges within BAR0 MMIO space. This register indicates the offsets of these tables: Group Configuration, WQ Configuration, MSI-X Permissions, IMS, Performance Monitoring, and IDPT. Software must use the values in this register to determine the offsets of these tables, as the offsets may change between implementations.
| Bit Range | Default | Access | Field Name and Description |
|---|---|---|---|
| 63:48 | 0h | RO/V | IMS Offset (IMS) Indicates the offset of the Interrupt Message Storage. The offset is the value in this field times 0x100. If the Interrupt Message Storage Support field in the Scalable IOV capability is 0, the value in this field is undefined. |
| 47:32 | 2h | RO/V | MSI-X Permissions Offset (MSIXPERM) Indicates the offset of the MSI-X Permissions Table. The offset is the value in this field times 0x100. |
| 31:16 | 4h | RO/V | WQ Configuration Offset (WQCFG) Indicates the offset of the WQ Configuration Table. The offset is the value in this field times 0x100. |
| 15:0 | 3h | RO/V | Group Configuration Offset (GRPCFG) Indicates the offset of the Group Configuration Table. The offset is the value in this field times 0x100. |