120 lines
4.2 KiB
Plaintext
120 lines
4.2 KiB
Plaintext
What: /sys/class/intel_pmt/
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Date: October 2020
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KernelVersion: 5.10
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Contact: David Box <david.e.box@linux.intel.com>
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Description:
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The intel_pmt/ class directory contains information for
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devices that expose hardware telemetry using Intel Platform
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Monitoring Technology (PMT)
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What: /sys/class/intel_pmt/telem<x>
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Date: October 2020
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KernelVersion: 5.10
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Contact: David Box <david.e.box@linux.intel.com>
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Description:
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The telem<x> directory contains files describing an instance of
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a PMT telemetry device that exposes hardware telemetry. Each
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telem<x> directory has an associated telem file. This file
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may be opened and mapped or read to access the telemetry space
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of the device. The register layout of the telemetry space is
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determined from an XML file that matches the PCI device id and
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GUID for the device.
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What: /sys/class/intel_pmt/telem<x>/telem
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Date: October 2020
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KernelVersion: 5.10
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Contact: David Box <david.e.box@linux.intel.com>
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Description:
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(RO) The telemetry data for this telemetry device. This file
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may be mapped or read to obtain the data.
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What: /sys/class/intel_pmt/telem<x>/guid
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Date: October 2020
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KernelVersion: 5.10
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Contact: David Box <david.e.box@linux.intel.com>
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Description:
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(RO) The GUID for this telemetry device. The GUID identifies
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the version of the XML file for the parent device that is to
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be used to get the register layout.
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What: /sys/class/intel_pmt/telem<x>/size
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Date: October 2020
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KernelVersion: 5.10
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Contact: David Box <david.e.box@linux.intel.com>
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Description:
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(RO) The size of telemetry region in bytes that corresponds to
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the mapping size for the telem file.
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What: /sys/class/intel_pmt/telem<x>/offset
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Date: October 2020
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KernelVersion: 5.10
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Contact: David Box <david.e.box@linux.intel.com>
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Description:
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(RO) The offset of telemetry region in bytes that corresponds to
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the mapping for the telem file.
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What: /sys/class/intel_pmt/crashlog<x>
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Date: October 2020
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KernelVersion: 5.10
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Contact: Alexander Duyck <alexander.h.duyck@linux.intel.com>
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Description:
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The crashlog<x> directory contains files for configuring an
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instance of a PMT crashlog device that can perform crash data
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recording. Each crashlog<x> device has an associated crashlog
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file. This file can be opened and mapped or read to access the
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resulting crashlog buffer. The register layout for the buffer
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can be determined from an XML file of specified GUID for the
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parent device.
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What: /sys/class/intel_pmt/crashlog<x>/crashlog
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Date: October 2020
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KernelVersion: 5.10
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Contact: David Box <david.e.box@linux.intel.com>
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Description:
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(RO) The crashlog buffer for this crashlog device. This file
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may be mapped or read to obtain the data.
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What: /sys/class/intel_pmt/crashlog<x>/guid
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Date: October 2020
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KernelVersion: 5.10
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Contact: Alexander Duyck <alexander.h.duyck@linux.intel.com>
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Description:
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(RO) The GUID for this crashlog device. The GUID identifies the
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version of the XML file for the parent device that should be
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used to determine the register layout.
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What: /sys/class/intel_pmt/crashlog<x>/size
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Date: October 2020
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KernelVersion: 5.10
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Contact: Alexander Duyck <alexander.h.duyck@linux.intel.com>
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Description:
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(RO) The length of the result buffer in bytes that corresponds
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to the size for the crashlog buffer.
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What: /sys/class/intel_pmt/crashlog<x>/offset
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Date: October 2020
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KernelVersion: 5.10
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Contact: Alexander Duyck <alexander.h.duyck@linux.intel.com>
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Description:
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(RO) The offset of the buffer in bytes that corresponds
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to the mapping for the crashlog device.
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What: /sys/class/intel_pmt/crashlog<x>/enable
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Date: October 2020
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KernelVersion: 5.10
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Contact: Alexander Duyck <alexander.h.duyck@linux.intel.com>
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Description:
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(RW) Boolean value controlling if the crashlog functionality
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is enabled for the crashlog device.
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What: /sys/class/intel_pmt/crashlog<x>/trigger
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Date: October 2020
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KernelVersion: 5.10
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Contact: Alexander Duyck <alexander.h.duyck@linux.intel.com>
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Description:
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(RW) Boolean value controlling the triggering of the crashlog
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device node. When read it provides data on if the crashlog has
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been triggered. When written to it can be used to either clear
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the current trigger by writing false, or to trigger a new
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event if the trigger is not currently set.
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