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| Capability Name | Capability Value | Generic Capability | Descriptiopn |
|---|---|---|---|
cpuModelSpecificationBinding | strictBinding equalOrBetterBinding |  | VDUs may be developed, compiled, optimized or validated on particular CPU models. Some deployments may wish to permit the VDU to be deployed on a platform with the specified CPU only, or with an alternative CPU with the same architecture, instruction set, and if specified, instruction set extensions, or with a CPU of equivalent or greater capability. |
instructionSetRequirements | aes, sse, avx, cat, cmt, mbm, ddio, smt, rdrand, etc etc | | Long list of instruction set extensions. |
simultaneousMultiThreading | Enabled disabled | | The use of Simultaneous Multi-Threading HW is an efficient way to increase the compute capacity of a platform. SMT HW threads share some CPU core resources. In some VDU implementations, it may be necessary to very explicitly control the HW thread allocation on a platform. This could be to help ensure locality in data caches or as a mechanism to enhance determinism |
hypervisorConfiguration | HPET memoryCompaction kernelSamepageMerging | | Long list: High Precision Event Timer configuration, memory compaction, kernel samepage merging, etc. |
computeRas | pciDetectedAndCorrectedErrors pciDetectedAndUncorrectedErrors | | Reliability, Availability, Serviceability (RAS) Long list of values: pciDetectedAndCorrectedErrors, pciDetectedAndUncorrectedErrors |
cpuModel | List of model identifiers | The CPU model for which the VDU has been developed, compiled for, optimized on, validated on or preferred for some reason. | |
directIoAccessToCache | Values – TBD | Descriptions related to cache functions – TBD | |
accelerator | Values – TBD | Descriptions related to accelerator functions – TBD | |
measuredLaunchEnvironment | Values – TBD | Descriptions related to boot environment functions – TBD | |
secureEnclave | Values – TBD | Descriptions related to secure region functions – TBD | |
numVirtualCpu | 1-N | Number of virtual CPUs | |
virtualCpuClock | 0-N | Minimum virtual CPU clock rate (e.g. in MHz). The cardinality can be 0 during the allocation request, if no particular value is requested. | |
logicalCpuPinningPolicy | dedicated shared | Determines if CPUs from the host platform should be committed to the VDU or shared between VDUs. | |
logicalCpuThreadPinningPolicy | require isolate prefer | Determines the manner in which CPU (HW) threads are allocated to VDUs. Require means CPU (HW) thread siblings should be allocated Isolate means allocate CPU (HW) threads from different execution units. Prefer means ideally allocate CPU HW threads from the same physical execution units but if not available, continue with allocation. |
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