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Diffstat (limited to 'Documentation/driver-api/mei/mei.rst')
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diff --git a/Documentation/driver-api/mei/mei.rst b/Documentation/driver-api/mei/mei.rst index 5aa3a5e6496a..c7f10a4b46ff 100644 --- a/Documentation/driver-api/mei/mei.rst +++ b/Documentation/driver-api/mei/mei.rst @@ -17,33 +17,6 @@ Each Intel ME feature (Intel ME Client) is addressed by a GUID/UUID and each client has its own protocol. The protocol is message-based with a header and payload up to 512 bytes. -Prominent usage of the Intel ME Interface is to communicate with Intel(R) -Active Management Technology (Intel AMT) implemented in firmware running on -the Intel ME. - -Intel AMT provides the ability to manage a host remotely out-of-band (OOB) -even when the operating system running on the host processor has crashed or -is in a sleep state. - -Some examples of Intel AMT usage are: - - Monitoring hardware state and platform components - - Remote power off/on (useful for green computing or overnight IT - maintenance) - - OS updates - - Storage of useful platform information such as software assets - - Built-in hardware KVM - - Selective network isolation of Ethernet and IP protocol flows based - on policies set by a remote management console - - IDE device redirection from remote management console - -Intel AMT (OOB) communication is based on SOAP (deprecated -starting with Release 6.0) over HTTP/S or WS-Management protocol over -HTTP/S that are received from a remote management console application. - -For more information about Intel AMT: -http://software.intel.com/sites/manageability/AMT_Implementation_and_Reference_Guide - - Intel MEI Driver ================ @@ -169,82 +142,9 @@ The Intel MEI Driver supports the following IOCTL commands: in order to receive an event -Intel ME Applications -===================== - - 1) Intel Local Management Service (Intel LMS) - - Applications running locally on the platform communicate with Intel AMT Release - 2.0 and later releases in the same way that network applications do via SOAP - over HTTP (deprecated starting with Release 6.0) or with WS-Management over - SOAP over HTTP. This means that some Intel AMT features can be accessed from a - local application using the same network interface as a remote application - communicating with Intel AMT over the network. - - When a local application sends a message addressed to the local Intel AMT host - name, the Intel LMS, which listens for traffic directed to the host name, - intercepts the message and routes it to the Intel MEI. - For more information: - http://software.intel.com/sites/manageability/AMT_Implementation_and_Reference_Guide - Under "About Intel AMT" => "Local Access" - - For downloading Intel LMS: - http://software.intel.com/en-us/articles/download-the-latest-intel-amt-open-source-drivers/ - - The Intel LMS opens a connection using the Intel MEI driver to the Intel LMS - firmware feature using a defined UUID and then communicates with the feature - using a protocol called Intel AMT Port Forwarding Protocol (Intel APF protocol). - The protocol is used to maintain multiple sessions with Intel AMT from a - single application. - - See the protocol specification in the Intel AMT Software Development Kit (SDK) - http://software.intel.com/sites/manageability/AMT_Implementation_and_Reference_Guide - Under "SDK Resources" => "Intel(R) vPro(TM) Gateway (MPS)" - => "Information for Intel(R) vPro(TM) Gateway Developers" - => "Description of the Intel AMT Port Forwarding (APF) Protocol" - - 2) Intel AMT Remote configuration using a Local Agent - - A Local Agent enables IT personnel to configure Intel AMT out-of-the-box - without requiring installing additional data to enable setup. The remote - configuration process may involve an ISV-developed remote configuration - agent that runs on the host. - For more information: - http://software.intel.com/sites/manageability/AMT_Implementation_and_Reference_Guide - Under "Setup and Configuration of Intel AMT" => - "SDK Tools Supporting Setup and Configuration" => - "Using the Local Agent Sample" - - An open source Intel AMT configuration utility, implementing a local agent - that accesses the Intel MEI driver, can be found here: - http://software.intel.com/en-us/articles/download-the-latest-intel-amt-open-source-drivers/ - - -Intel AMT OS Health Watchdog -============================ - -The Intel AMT Watchdog is an OS Health (Hang/Crash) watchdog. -Whenever the OS hangs or crashes, Intel AMT will send an event -to any subscriber to this event. This mechanism means that -IT knows when a platform crashes even when there is a hard failure on the host. - -The Intel AMT Watchdog is composed of two parts: - 1) Firmware feature - receives the heartbeats - and sends an event when the heartbeats stop. - 2) Intel MEI iAMT watchdog driver - connects to the watchdog feature, - configures the watchdog and sends the heartbeats. - -The Intel iAMT watchdog MEI driver uses the kernel watchdog API to configure -the Intel AMT Watchdog and to send heartbeats to it. The default timeout of the -watchdog is 120 seconds. - -If the Intel AMT is not enabled in the firmware then the watchdog client won't enumerate -on the me client bus and watchdog devices won't be exposed. Supported Chipsets ================== 82X38/X48 Express and newer - ---- linux-mei@linux.intel.com |