coreboot July 2013

coreboot@coreboot.org

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108 discussions

[kevin@koconnor.net: [SeaBIOS] [ANNOUNCE] SeaBIOS 1.7.3]
by Peter Stuge 13 Jul '13

13 Jul '13

----- Forwarded message from Kevin O'Connor ----- The 1.7.3 version of SeaBIOS has now been released. ----- End forwarded message ----- Do we want to bump the version tag in coreboot Kconfig? //Peter

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Re: [coreboot] Supported laptops (again), treacherous computing
by David Hubbard 12 Jul '13

12 Jul '13

On Fri, Jul 12, 2013 at 9:42 AM, ron minnich <rminnich(a)gmail.com> wrote: > It's kind of useless to point to a bunch of random laptops with a > compatible chipset. It's never that simple. You don't know what the EC > is or how to talk to it, and you don't have critical info you need to > really make this work. So count on about a year of effort, > potentially. What if there's a magic i2c mux down in there somewhere? > What if there's some weird flash locking? And on and on, it's a long > list. > > If somebody wants a laptop with coreboot today, that has vendor > support, get an acer c7 chromebook. If you can stand the keyboard, > which you really want to test. But it's an incredible deal. > > ron > > To echo what Ron said, if you want to devote the time and resources, those AMD laptops do look tempting. The linux kernel has spoiled us: at the OS level there are de-facto standards, largely dictated by Microsoft. Linux developers spend most of their effort working on 3rd-party add-on hardware support. I'm as concerned about treacherous computing as anybody. But face the facts: coreboot's supported hardware list is just not very comprehensive. And the laptop options right now are Intel-based, all with things like the EC, IMC, ME ... Intel is hard at work adding hidden treacherous computing. Catching up to Intel and beating them at their own game is a tall order. How do you want to help? You can get a Thinkpad right now, with the best coreboot has to offer, knowing full well it isn't 100% free (yet). You can start a porting effort for those AMD laptops. Really, it's a green field and wide open and I think the project is pretty welcoming to new contributors. The only thing you should be aware of is that coreboot is _hard_. Like, harder than Linux, harder than reversing a closed app, harder than unlocking cell phones and rooting them, but imo worth it. Cheers, David

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Supported laptops (again), treacherous computing
by Nikita Karetnikov 12 Jul '13

12 Jul '13

I'm looking for an x86_64 laptop to try Coreboot. I've looked through the archives [1,2] and the wiki [3]; it seems the most popular machines are x60s and t60. However, these machines are shipped in different configurations [4,5]. This page [6] mentions Core Duo Mobile L2300, which has a 32-bit instruction set [7], so I'm not really interested. And this one [8] says about Core 2 Duo T7200 [9] and Core 2 Duo Mobile L7400 [10] (each has a 64-bit instruction set). Is there a configuration that doesn't require non-free [11] components? It's not clear from this page [12]. And this answer [13] is a bit confusing because it just mentions x60, not a particular configuration. Is there a need to worry about microcode or EC? Are there any plans regarding them? For example, even "the first fully free laptop" has freedom-related issues with EC [14]. Also, this processor [10] has so-called embedded options. I'm a bit concerned. I don't have any personal experience with such technologies, but these links [15--19] are scary. Could anyone elaborate? For instance, this page [16] says that one can remotely enable AMT even if it was disabled in BIOS. Can Coreboot permanently disable such "features"? Can it disable DRM [20]? TL;DR: I'm looking for an x86_64 laptop that should work with Coreboot, shouldn't have nasty "features," shouldn't refuse to boot if I replace a component, and shouldn't require non-free software to run. [1] http://www.coreboot.org/pipermail/coreboot/2013-June/076058.html [2] http://www.coreboot.org/pipermail/coreboot/2013-June/076070.html [3] http://www.coreboot.org/Laptop#Laptops_with_coreboot_Support [4] http://www.thinkwiki.org/wiki/Category:X60s [5] http://www.thinkwiki.org/wiki/Category:T60 [6] http://www.coreboot.org/Thinkpad_X60s [7] http://ark.intel.com/products/27228/Intel-Core-Duo-Processor-L2300-%282M-Ca… [8] http://www.coreboot.org/Supported_Motherboards#Laptops [9] http://ark.intel.com/products/27255/Intel-Core2-Duo-Processor-T7200-4M-Cach… [10] http://ark.intel.com/products/28026/Intel-Core2-Duo-Processor-L7400-4M-Cach… [11] https://gnu.org/philosophy/free-sw [12] http://www.coreboot.org/Thinkpad_X60s#proprietary_components_status [13] http://www.coreboot.org/pipermail/coreboot/2013-June/075948.html [14] http://libreplanet.org/wiki/Group:Hardware/Freest#Lemote_Yeeloong_8089_and_… [15] https://en.wikipedia.org/wiki/Intel_vPro#Security_and_privacy_concerns [16] http://forums.lenovo.com/t5/Security-Malware/Intel-AMT-backdoor-enabled-by-… [17] http://linux.die.net/man/7/amt-howto [18] http://software.intel.com/sites/manageability/AMT_Implementation_and_Refere… [19] http://software.intel.com/sites/manageability/AMT_Implementation_and_Refere… [20] http://www.defectivebydesign.org/

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Re: [coreboot] why "/root_complex" is deprecated
by Kyösti Mälkki 12 Jul '13

12 Jul '13

On Fri, 2013-07-12 at 10:05 +0800, WANG Siyuan wrote: > Hi, > When I compile AMD Parmer, I got this warning: > WARNING: Use of deprecated chip component > northbridge/amd/agesa/family15tn/root_complex > > I found this warning is printed by util/sconfig/main.c line 172 > > Why 'northbridge/amd/agesa/family15tn/root_complex' is deprecated? > > -- > Yours sincerely, > WANG Siyuan > Hi I recently removed all /root_complex directories to remove the unnecessary complexity it introduced in the Kconfig system. The nodes in devicetree no longer contained any code to execute, if they ever did. The term "Root Complex" has a meaning in PCI-e architecture. In my opinion that does not match the use found in our devicetree.cb files with the root_complex entries containing CPU clusters. We should come up with a clean plan what is used as the root item in the devicetree.cb as our devicetree enumeration is already hard enough to understand. I think it would make sense to always have mainboard/ as the root to make things easier. Kyösti

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why "/root_complex" is deprecated
by WANG Siyuan 12 Jul '13

12 Jul '13

Hi, When I compile AMD Parmer, I got this warning: WARNING: Use of deprecated chip component northbridge/amd/agesa/family15tn/root_complex I found this warning is printed by util/sconfig/main.c line 172 Why 'northbridge/amd/agesa/family15tn/root_complex' is deprecated? -- Yours sincerely, WANG Siyuan

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Please test proposed tool chain with GCC 4.8.1, binutils 2.23.2, …
by Paul Menzel 11 Jul '13

11 Jul '13

Dear coreboot folks, as GCC 4.8.1 is pretty new, it would be nice if you could help making sure, that nothing breaks and test the new tool chain [1] by building an image with it and build it for your board. Author: Stefan Reinauer <reinauer(a)chromium.org> Date: 2013-07-10 14:27:56 -0700 buildgcc: Update reference toolchain * GCC 4.8.1 * binutils 2.23.2 * GDB 7.6 * ACPICA 20130626 * Python 3.3.2 ... this adds support for Aarch64. For Ron. Change-Id: Idec91bcd615bc35c83373bd23d4681f1c8eb015c Please comment in the Gerrit review what boards you tested with. Thanks, Paul [1] http://review.coreboot.org/#/c/3758/

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Re: [coreboot] Overview of latest Google patch push?
by ron minnich 10 Jul '13

10 Jul '13

If somebody wants to get the command-line interface to gerrit going and show us how, I would love it. The web interface is nice but past a point is very time-wasting. ron

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Re: [coreboot] google patch set
by Samuel Casa 10 Jul '13

10 Jul '13

i dont have that much time at the moment but i want to work on the beaglebone port! On Jul 10, 2013 5:13 PM, "ron minnich" <rminnich(a)gmail.com> wrote: > Yeah, it's a lot, eh? > > I can think of a few main areas: > 1. ARM support -- 3 new mainboards in progress > 2. The graphics stuff -- with final haswell support on the way > 3. the usual random bug fixes and improvements > > You might conclude from all this that coreboot is important at google :-) > > We would be very, very happy to have someone outside google engage > with the beaglebone effort. Anyone? > > ron > > -- > coreboot mailing list: coreboot(a)coreboot.org > http://www.coreboot.org/mailman/listinfo/coreboot >

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Overview of latest Google patch push?
by Paul Menzel 10 Jul '13

10 Jul '13

Dear Google coreboot folks, thank you for upstreaming your patches. As there are so many patches, could you please send an overview, so the big picture is clear. It would be awesome if you could also include a list of crucial patches, which should get the most attention. I am not sure if that is possible at all, but it would help to get the patches in in my opinion. And lastly, do you know of a way to order the patches regarding their dependencies in Gerrit? Thanks, Paul

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Re: [coreboot] How to add prints to the boot screen
by David Hubbard 10 Jul '13

10 Jul '13

Hi Pankaj, Please provide lots of details, such as: what board are you using? What is your coreboot config? Coreboot itself will not print things on the VGA console. You should look at the payload if you want to customize the boot screen. David On Wed, Jul 10, 2013 at 12:50 PM, Pankaj Chhabra <chhabra.pankaj(a)gmail.com>wrote: > Hello, > > I need to add some prints to the boot screen. Could some one please share > how to do printf, when I use it, it does not display anything. > > printf's in bootsplash.c and boot.c do appear. > > Please let me know how to add prints to the BIOS screen. > > Thanks, > Pankaj > > -- > coreboot mailing list: coreboot(a)coreboot.org > http://www.coreboot.org/mailman/listinfo/coreboot >

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coreboot July 2013