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-rw-r--r--Documentation/misc-devices/mei/mei.txt126
1 files changed, 67 insertions, 59 deletions
diff --git a/Documentation/misc-devices/mei/mei.txt b/Documentation/misc-devices/mei/mei.txt
index 15bba1aeba9a..8d47501bba0a 100644
--- a/Documentation/misc-devices/mei/mei.txt
+++ b/Documentation/misc-devices/mei/mei.txt
@@ -1,8 +1,8 @@
Intel(R) Management Engine Interface (Intel(R) MEI)
-=======================
+===================================================
Introduction
-=======================
+============
The Intel Management Engine (Intel ME) is an isolated and protected computing
resource (Co-processor) residing inside certain Intel chipsets. The Intel ME
@@ -19,7 +19,7 @@ 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
+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)
@@ -44,8 +44,9 @@ 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
-=======================
+================
The driver exposes a misc device called /dev/mei.
@@ -91,8 +92,10 @@ A code snippet for an application communicating with Intel AMTHI client:
[...]
close(fd);
-IOCTL:
-======
+
+IOCTL
+=====
+
The Intel MEI Driver supports the following IOCTL command:
IOCTL_MEI_CONNECT_CLIENT Connect to firmware Feature (client).
@@ -122,58 +125,61 @@ The Intel MEI Driver supports the following IOCTL command:
data that can be sent or received. (e.g. if MTU=2K, can send
requests up to bytes 2k and received responses up to 2k bytes).
-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:
-=============================
+
+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
@@ -192,8 +198,10 @@ watchdog is 120 seconds.
If the Intel AMT Watchdog feature does not exist (i.e. the connection failed),
the Intel MEI driver will disable the sending of heartbeats.
-Supported Chipsets:
+
+Supported Chipsets
==================
+
7 Series Chipset Family
6 Series Chipset Family
5 Series Chipset Family