Group: Hardware/Restrictions/anti-freedom/Intel Management Engine/HP Elitebook 2570p

From LibrePlanet
Jump to: navigation, search
(Introduction)
(Introduction)
Line 1: Line 1:
 
== Introduction ==
 
== Introduction ==
This laptop uses the Ivybridge microarchitecture.
 
 
 
This laptop cannot even boot without nonfree software.
 
This laptop cannot even boot without nonfree software.
  
However doing tests on it to understand better the Management Engine and its freedom is still interesting.
+
However doing tests on it to understand better the Management Engine and the laptop lack of freedom is still interesting.
  
 
As for now:
 
As for now:
* That laptop requires a signed and nonfree Management Engine firmware
+
* That laptop requires a signed and nonfree Management Engine firmware.
* It also requires a nonfree ec firmware that has to be part of the Coreboot image.
+
* It also requires a nonfree Embedded Controller (EC) firmware that has to be part of the Coreboot image.
 
* It still needs to be tested without CPU microcode.
 
* It still needs to be tested without CPU microcode.
 +
 +
== Hardware ==
 +
 +
This laptop uses the Ivybridge microarchitecture.
  
 
== Tests ==  
 
== Tests ==  

Revision as of 11:19, 28 February 2020

Introduction

This laptop cannot even boot without nonfree software.

However doing tests on it to understand better the Management Engine and the laptop lack of freedom is still interesting.

As for now:

  • That laptop requires a signed and nonfree Management Engine firmware.
  • It also requires a nonfree Embedded Controller (EC) firmware that has to be part of the Coreboot image.
  • It still needs to be tested without CPU microcode.

Hardware

This laptop uses the Ivybridge microarchitecture.

Tests

Test Results Comments
Keep ROMP + BUP ME partitions
  • Boots
FPTR, ROMP and BUP partitions were removed
  • The keyboard blinks (Is the EC firmware doing that)
  • After a timeout, the fan engages at full speed
  • Did Coreboot crash or panic?
  • TODO: retry with some other debug mechanism:
    • Try with beeps added and blinking removed from in Coreboot config
    • Try to get a Coreboot log with serial, usb debug, or other means
Removed completely the ME partition like for GM45 (1, 0xffff for region 2 base)
  • It powers off right after pressing the power on button