Intel Sapphire Rapids PECI Support Coming With Linux 6.6
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Intel PECI is the proprietary communication channel for Intel CPUs and chipset components. PECI has been found on Intel server platforms going back more than a decade while the Linux kernel support was added last year. This exposes thermal information and other environment details to external platform hardware like BMCs on servers for monitoring and control.
With the PECI pull request for Linux 6.6, Intel Sapphire Rapids support is now wired up to this hardware monitoring driver code. There is also a Nuvoton PECI controller node added as part of this pull too. This Sapphire Rapids support has been tested with both the CPU and DIMM memory temperature reporting to be working via the PECI interface.
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