Summary
Validate Support for CXL and PCIe* 5.0 is available on Intel® Xeon® Scalable Processors.
Description
- Unable to determine if Intel® Xeon® supports Compute Express Link (CXL) and PCIe* 5.0.
- Need to build a heterogeneous memory system which needs CPI/CXL features to maintain cache coherence and fast virtual-to-physical address translation via TLB instead of software translation.
Resolution
Support for CXL and PCIe* 5.0 is available in the 4th Generation Intel® Xeon® Scalable Processors.
| Generation | CXL | PCIe* 5.0 |
| 1st Generation Intel® Xeon® Scalable Processors | Not Supported | Not Supported |
| 2nd Generation Intel® Xeon® Scalable Processors | Not Supported | Not Supported |
| 3rd Generation Intel® Xeon® Scalable Processors | Not Supported | Not Supported |
| 4th Generation Intel® Xeon® Scalable Processors | Supported | Supported |
| 5th Generation Intel® Xeon® Scalable Processors | Supported | Supported |
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