ANBZ: #24 - Intel: backport Intel Platform Monitoring Technology (PMT) framework · Pull Request !8 · anolis/cloud-kernel

Intel Platform Monitoring Technology (PMT) is an architecture for enumerating and accessing hardware monitoring capabilities on a device. This MR is to add support for the PMT framework.

PMT defines several capabilities to support collecting monitoring data from hardware. All are discoverable as separate instances of the PCIE Designated Vendor extended capability (DVSEC) with the Intel vendor code. The DVSEC ID field uniquely identifies the capability. Each DVSEC also provides a BAR offset to a header that defines capability-specific attributes, including GUID, feature type, offset and length, as well as configuration settings where applicable. The GUID uniquely identifies the register space of any monitor data exposed by the capability.

Main upstream patch: https://lkml.org/lkml/2020/7/14/64

New ABI added document: https://www.kernel.org/doc/html/latest/admin-guide/abi-testing.html#abi-file-testing-sysfs-class-intel-pmt

Test summary:

- unit test done, driver attached and work properly, interface read verified.
- build successfully
- boot test passed on SPR
- performance test done, no obvious issue found

类型	指派人员	状态
审查	Shiloong xunlei Artie Ding zelindeng 已审查通过	已完成 (1/1人)
测试	小龙已测试通过	已完成 (1/1人)

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