From dbc480fb28a694ad5a587be025eabfded7c7784b Mon Sep 17 00:00:00 2001 From: Alyssa Rosenzweig Date: Fri, 17 Mar 2017 22:24:25 -0700 Subject: Convert documentation to markdown --- docs/hcl/t400.html | 179 ----------------------------------------------------- 1 file changed, 179 deletions(-) delete mode 100644 docs/hcl/t400.html (limited to 'docs/hcl/t400.html') diff --git a/docs/hcl/t400.html b/docs/hcl/t400.html deleted file mode 100644 index 56dfea24..00000000 --- a/docs/hcl/t400.html +++ /dev/null @@ -1,179 +0,0 @@ - - - - - - - - - ThinkPad T400 - - - - -
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ThinkPad T400

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- It is believed that all or most T400 laptops are compatible. - See notes about CPU compatibility - for potential incompatibilities. -

- -

- There are two possible flash chip sizes for the T400: 4MiB (32Mbit) or 8MiB (64Mbit). - This can be identified by the type of flash chip below the palmrest: 4MiB is SOIC-8, 8MiB - is SOIC-16. -

- -

- The T400 laptops come with the ME (and sometimes AMT in addition) before flashing libreboot. Libreboot disables and removes it - by using a modified descriptor: see gm45_remove_me.html (contains notes, plus - instructions) -

- -

- Flashing instructions can be found at ../install/#flashrom -

- -

- Back to previous index. -

-
- -
- -

EC update

- -

- It is recommended that you update to the latest EC firmware version. - The EC firmware - is separate from libreboot, so we don't actually provide that, but - if you still have Lenovo BIOS then you can just run the Lenovo BIOS - update utility, which will update both the BIOS and EC version. - See: -

- -

- NOTE: this can only be done when you are using Lenovo BIOS. How to - update the EC firmware while running libreboot is unknown. - Libreboot only replaces the BIOS firmware, not EC. -

-

- Updated EC firmware has several advantages e.g. - bettery battery handling. -

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- -

Compatibility (without blobs)

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-

Hardware virtualization (vt-x)

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- The T400, when run without CPU microcode updates in coreboot, currently kernel panics - if running QEMU with vt-x enabled on 2 cores for the guest. With a single core enabled - for the guest, the guest panics (but the host is fine). Working around this in QEMU - might be possible; if not, software virtualization should work fine (it's just slower). -

-

- On GM45 hardware (with libreboot), make sure that the kvm and kvm_intel kernel modules - are not loaded, when using QEMU. -

-

- The following errata datasheet from Intel might help with investigation: - http://download.intel.com/design/mobile/specupdt/320121.pdf -

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- -
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- The T400 is almost identical to the X200, code-wise. See x200.html. -

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Hardware register dumps

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- The coreboot wiki shows - how to collect various logs useful in porting to new - boards. Following are outputs from the T400: -

- - - -
- -
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- Copyright © 2015 Leah Rowe <info@minifree.org>
- Permission is granted to copy, distribute and/or modify this document - under the terms of the Creative Commons Attribution-ShareAlike 4.0 International license - or any later version published by Creative Commons; - - A copy of the license can be found at ../cc-by-sa-4.0.txt -

- -

- Updated versions of the license (when available) can be found at - https://creativecommons.org/licenses/by-sa/4.0/legalcode -

- -

- UNLESS OTHERWISE SEPARATELY UNDERTAKEN BY THE LICENSOR, TO THE - EXTENT POSSIBLE, THE LICENSOR OFFERS THE LICENSED MATERIAL AS-IS - AND AS-AVAILABLE, AND MAKES NO REPRESENTATIONS OR WARRANTIES OF - ANY KIND CONCERNING THE LICENSED MATERIAL, WHETHER EXPRESS, - IMPLIED, STATUTORY, OR OTHER. THIS INCLUDES, WITHOUT LIMITATION, - WARRANTIES OF TITLE, MERCHANTABILITY, FITNESS FOR A PARTICULAR - PURPOSE, NON-INFRINGEMENT, ABSENCE OF LATENT OR OTHER DEFECTS, - ACCURACY, OR THE PRESENCE OR ABSENCE OF ERRORS, WHETHER OR NOT - KNOWN OR DISCOVERABLE. WHERE DISCLAIMERS OF WARRANTIES ARE NOT - ALLOWED IN FULL OR IN PART, THIS DISCLAIMER MAY NOT APPLY TO YOU. -

-

- TO THE EXTENT POSSIBLE, IN NO EVENT WILL THE LICENSOR BE LIABLE - TO YOU ON ANY LEGAL THEORY (INCLUDING, WITHOUT LIMITATION, - NEGLIGENCE) OR OTHERWISE FOR ANY DIRECT, SPECIAL, INDIRECT, - INCIDENTAL, CONSEQUENTIAL, PUNITIVE, EXEMPLARY, OR OTHER LOSSES, - COSTS, EXPENSES, OR DAMAGES ARISING OUT OF THIS PUBLIC LICENSE OR - USE OF THE LICENSED MATERIAL, EVEN IF THE LICENSOR HAS BEEN - ADVISED OF THE POSSIBILITY OF SUCH LOSSES, COSTS, EXPENSES, OR - DAMAGES. WHERE A LIMITATION OF LIABILITY IS NOT ALLOWED IN FULL OR - IN PART, THIS LIMITATION MAY NOT APPLY TO YOU. -

-

- The disclaimer of warranties and limitation of liability provided - above shall be interpreted in a manner that, to the extent - possible, most closely approximates an absolute disclaimer and - waiver of all liability. -

- -
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