Intel® Core™ Ultra Processors for H-series and U-series Platforms CFG and MEM Registers
| ID | Date | Version | Classification |
|---|---|---|---|
| 795258 | 12/14/2023 | Public |
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Enhanced Command Capabilities (ECMD_CAP3_0_0_0_VTDBAR) – Offset 448
This register is used by hardware to list which operations can be performed through the Enhanced Command Register (ECMD_REG).
| Bit Range | Default | Access | Field Name and Description |
|---|---|---|---|
| 63:54 | 0h | RO | Reserved |
| 53 | 0h | RO | Unfreeze Perfmon Counters Support (UFZCNTS) Refer to VT-d specification |
| 52 | 0h | RO | Freeze Perfmon Counters Support (FZCNTS) Refer to VT-d specification |
| 51 | 0h | RO | Reset Perfmon Counter Values Support (RCNTS) Refer to VT-d specification |
| 50 | 0h | RO | Reset Perfmon Counter Configuration Support (RCFGS) Refer to VT-d specification |
| 49 | 0h | RO | Disable Perfmon Counter Support (DCNTS) Refer to VT-d specification |
| 48 | 0h | RO | Enable Perfmon Counter Support (ECNTS) Refer to VT-d specification |
| 47:0 | 0h | RO | Reserved |