Re: [coreboot] Powersavings: 8W of difference between bios and coreboot

2016-11-19 Thread Alexander Couzens
Hi Charlotte, here are some description of the EC in your board. Don't know how much you already know. The Thinkpad has 2 EC controller. 1x Thinker 1x H8S (W530 has a SMSC chip). The ectool dump only shows a buffer, which both side(host+ec) can use to communicate. The ectool usually talks to t

Re: [coreboot] native video init question

2016-11-19 Thread Charlotte Plusplus
So I used inteltool, checked to compute the values, then even tried with autoport. The number match, the EDID is correct, and the panel is properly detected. But the internal display still shows a garbled picture with stretched letters. I'm out of ideas to get native video init working.

[coreboot] Searching for datasheets concerning AMD SB950 southbridge chipset

2016-11-19 Thread Marty Plummer
Greetings, In response to a bit of utter stupidity with the vendor UEFI firmware on my motherboard I've decided to have a go at porting coreboot to it. I've already gathered datasheets for most components on my motherboard, but I have yet to locate the various datasheets and guides regarding the S

Re: [coreboot] Support for student project

2016-11-19 Thread Trammell Hudson
On Sun, Nov 20, 2016 at 01:08:30AM +, Peter Stuge wrote: > [...] > Given your focus on USB, a Linux payload with custom initramfs is > especially interesting. Tobias -- I've been working on building a Linux payload with a focus on how to integrate with the TPM and other security research. The

Re: [coreboot] Support for student project

2016-11-19 Thread Peter Stuge
Hi Tobias, Tobias Wegner wrote: > 'badusb' > One of our main security targets is to stop boot sector attacks. Then use a payload which ignores MBR, such as FILO, Linux or GRUB. Almost anything except SeaBIOS. Given your focus on USB, a Linux payload with custom initramfs is especially interestin

Re: [coreboot] Powersavings: 8W of difference between bios and coreboot

2016-11-19 Thread Charlotte Plusplus
Quick update: I tried experimenting on the w530 to find which ACPI call turns off the dGPU. bbswitch reported it was: \_SB.PCI0.LPC.EC.PUBS._OFF however, in tests with powertop it failed to show any improvement. A lot of information was found on https://github.com/Lekensteyn/acpi-stuff/blob/master

Re: [coreboot] DMA protection? [AMD-Vi]

2016-11-19 Thread taii...@gmx.com
You the man! Very informative >:D Was the card malicious or just horribly programmed? How much would it run for you fellas to make DMA protection happen? On 11/15/2016 04:58 PM, Timothy Pearson wrote: -BEGIN PGP SIGNED MESSAGE- Hash: SHA1 On 11/15/2016 03:35 PM,taii...@gmx.com

Re: [coreboot] Success: Native gfx init on T500 with 1680x1050 display working w/o VGA blob

2016-11-19 Thread Merlin Büge
Hi Daniel, I'm not really qualified to answer your questions, but two things: > - the memtest86+ payload does not boot (or it boots but shows no image, I > don't know. Is it possible to make memtest86+ use the 1680x1050 resolution?). The libreboot project publishes extra ROMs for memtest, which

[coreboot] Support for student project

2016-11-19 Thread Tobias Wegner
Dear developers of Coreboot. I am a student at the University of Bremen, Germany. In our recently started project 'badUSB' our team researches for new ways to detect and prevent attacks through reverse engineered USB devices-firmware (so called 'badusb'). One of our main security targets is to

[coreboot] Success: Native gfx init on T500 with 1680x1050 display working w/o VGA blob

2016-11-19 Thread Daniel Kulesz via coreboot
Hi folks, already since a while, there exists a hardware mod for the Thinkpad T500 which allows to run a quadcore CPU from from the Q9000-QX9300 series using Coreboot [1]. After trying various Coreboot configurations, I managed to make the current coreboot-master (e39a8a9c092ed66686632d591ec84e