coreboot May 2018

coreboot@coreboot.org

51 participants
137 discussions

Optiplex 790 now has preliminary support by coreboot

by Taiidan＠gmx.com

https://review.coreboot.org/21774 In case anyone else didn't notice - It is a sandy/ivy system with IOMMU. This is great and should help get coreboot in to the corporate user world.

2 years

Re: [coreboot] Upgrade the 12 years old LZMA libraries - should we do it?

by Carl-Daniel Hailfinger

Hi Ivan, On 03.04.2018 20:03, Ivan Ivanov wrote: > I have noticed that both coreboot and seabios are using the very old > versions of LZMA SDK. True. I introduced the lzma code in coreboot (back when it was called LinuxBIOS) when we were working on OLPC XO-1 support. > If we will upgrade our LZMA libraries from the > outdated-by-12-years 4.42 to the current version 18.04 , speed and > compression ratio should improve and maybe a few bugs will be fixed. Do you have any numbers for this? An improved compression ratio and improved speed would be nice indeed, but how does the size of the decompression code change? If the decompression code grows more than the size reduction from better compression, it would be a net loss. A significantly reduced decompression speed would also be a problem. Decompression speed would have to be measured both for stream decompression (i.e. the decompressor gets the compressed data in single-byte or multibyte chunks) as well as full-size decompression (i.e. the decompressor can access all compressed data at once). We also have to make sure that stream decompression still works after the change. > Do you think it should be done, or you are OK with using such an > outdated version? A size benefit for the resulting image is a good reason to switch. Regards, Carl-Daniel

2 years, 11 months

Re: [coreboot] AMD IMC open source firmware replacement

by Rudolf Marek

Dne 30.5.2018 v 16:06 Mike Banon napsal(a): > Hi Rudolf, > > Regarding this part: > " To check if IMC is active check if PCI 0:14.3 0x40 bit7 set. " > what command do I need to use to check this? Try: sudo setpci -s 14.3 40.b Despite command name, it will print the value. Thanks Rudolf

3 years

Lenovo T410 Coreboot

by A. Veek

3 years, 1 month

FOSDEM Hardware Enablement Devroom

by Paul Kocialkowski

A Hardware Enablement devroom will be taking place at FOSDEM this year, on Sunday 10 December 2017. This newly-created devroom is the result of 3 proposals that were merged together. It is co-organized by several individuals. The devroom covers all aspects related to hardware enablement and support with free software, including aspects related to boot software, firmwares, drivers and userspace tools and adaptation. Proposals for talks related to these topics are welcome and can be submitted until Sunday 26 November 2017 via the pentabarf interface. Short talks are encouraged over longer ones in order to cover a wide range of topics. The announcement for the devroom, that contains all the useful information, was published at: https://lists.fosdem.org/pipermail/fosdem/2017-October/002649.html Cheers and see you at FOSDEM! -- Paul Kocialkowski, developer of free digital technology and hardware support Website: https://www.paulk.fr/ Coding blog: https://code.paulk.fr/ Git repositories: https://git.paulk.fr/ https://git.code.paulk.fr/

3 years, 1 month

Re: [coreboot] Building coreboot for Apollo Lake: missing 'IFWI' region

by Nico Huber

Hello Hal, On 28.05.2018 08:06, Hal Martin wrote: > Name Offset Type Size Comp > ... > cpu_microcode_blob.bin 0x6f00 microcode 0 none The size looks troubling, I think you really need the correct microcode binary to get into coreboot. Make 100% sure it matches your SKU. > Is it expected that ifwitool will not work on the coreboot generated image? > Or does this indicate I've made a mistake somewhere? I'm not sure. I'd extract the bios/ifwi region using ifdtool and try to run ifwitool on that. Nico

3 years, 7 months

Re: [coreboot] POWER9 / Talos II coreboot support?

by Timothy Pearson

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 On 05/03/2018 06:02 PM, ron minnich wrote: > > > On Thu, May 3, 2018 at 1:20 PM Timothy Pearson > <tpearson(a)raptorengineering.com <mailto:tpearson@raptorengineering.com>> > wrote: > > -----BEGIN PGP SIGNED MESSAGE----- > Hash: SHA256 > > I think I was being a bit pessimistic / too careful here. We're close > to getting the docs publicly released, but that doesn't help anyone > wanting access right now, which is why I mentioned the other route. > IBM's committed to getting the documentation released, they're just > making sure that what they release is actually correct for the products > it covers. > > It might make sense to get our "working group" together over the next > few weeks, by which time the documentation should be available in public > form. > > Are you interested in joining? :-) > > > of course, but not until those docs are freed up. > We're getting there. First manual to be released is the processor user guide. More to follow, including register documentation, in around a week. Users guide: https://wiki.raptorcs.com/wiki/File:POWER9_um_OpenPOWER_v20GA_09APR2018_pub… > Context: I've been trying for 2 years now to get OPAL released under > dual gpl2 licensing with the current apache2 license, apache2 and gpl2 > are not compatible, so we'd be in a bit of a mess should we use OPAL > code in coreboot, and it would be easiest if we were able to use some of > that code. > > The first response from IBM was "why do you think you need coreboot?" I > worked through that, and there was agreement in the end it ought to > happen, said agreement reached about 2 years ago. Stuff Would Happen, I > was told. After that, silence. We've reignited this. It's underway. :-) > This is pretty much par for the course with Power. In 1990 I spent two > years getting an agreement that would allow me to .... get more agreements. We've plowed through this already and are at the action point. For the most part, just let me know what you need and I'll see if we can get it published. > So close doesn't count. Once I see the kind of docs I need to see, not > requiring a clickwrap, and covering all aspects of every chip on your > board, I'm in: I'll order a board. Until then, I can't really do much. Is the NIC an issue? There are several people working on REing the hardware with some great progress [1][2], but there's really no way to get Broadcom to ever release official documentation. Everything else on the libre-friendly non-SAS version either has docs available or we are close to getting them published. > Thanks for your efforts on Power! No problem! We still consider Power the best path forward for powerful libre systems at this point, getting really tired of the other vendors actively working against efforts to create open firmware (this includes SiFive at this point). Will keep you posted as we get more docs published online, but thought you and the others here might at least be interested in the users guide. > ron > > [1] https://wiki.raptorcs.com/wiki/BCM5719 [2] IRC discussions on #talos-workstation - -- Timothy Pearson Raptor Engineering +1 (415) 727-8645 (direct line) +1 (512) 690-0200 (switchboard) https://www.raptorengineering.com -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iQEcBAEBCAAGBQJa9pj/AAoJEK+E3vEXDOFbF70IAJohByTnLWTDC/I5q4FNi/on bS+gTBs373Cd5iIFaYCrVxYU4udDIDy3fjhBG6Y64AjQFtu4KSXkjbR/aldfnk36 mUfOul59kY+DDIaQOBEuHBsq0YoF1oFy4LBbiSpZXTZh5SDAbSleeg6tKJDqzR4Z zirXrZN8Vsv+FneQmbXAt+LqqveZcKTUz5vG5GaJCC/i6fyrkr/oI9Ffw/vlFcAI 3d9Ni/YzuKmdQN+rPcvJViNoBYsQ0aumAwrTc45omZDK5Mg3I+B+6vC27CDhwB23 TtKNw456tF5i0P9NhqjdQnqMdNc2BvocJQxyXOfvnPSXHW6DSAV4tT3+lh8PAyM= =EbtA -----END PGP SIGNATURE-----

3 years, 7 months

Re: [coreboot] Porting coreboot to new board

by Nico Huber

Hello Zvika, On 31.05.2018 04:39, Zvi Vered wrote: > The links you provided: > https://www.coreboot.org/Motherboard_Porting_Guide > https://www.coreboot.org/Developer_Manual > > Does not mention Intel's FSP at all. there is few FSP documentation maintained by the coreboot community. But there exists a book [1] and some documentation in our source repo- sitory [2]. I have to admit, I have read neither of them. I'm used to read code instead (it is always right and never outdated). So I can't tell how useful the documentation is. > > How FSP is integrated during coreboot porting ? > src\venorcode\intel contains 2 FSP versions. There are actually three: src/vendorcode/fsp1_0/ src/vendorcode/fsp/fsp1_1/ src/vendorcode/fsp/fsp2_0/ For your platform, FSP1.1 and FSP2.0 binaries exist. > src\soc\intel contains fsp_baytrail, fsp_broadwell_de These are for different chips. Your E3-1505M v5 is a Skylake processor. We were used to name the directories explicitly with fsp_ prefix before, because there were sometimes alternatives to FSP in the tree. That stopped with Skylake, so src/soc/intel/*lake are all FSP based, too. src/soc/skylake/ contains the chipset support for your platform. As mentioned above, two FSP versions exist for Skylake. The original Skylake FSP was version 1.1 but because its successor Kaby Lake is mostly compatible, the src/soc/skylake/ code also supports Kaby Lake and the newer Kaby Lake FSP 2.0 also supports Skylake. IMO, you should choose which version of FSP you want to use, first. I would advice you to use FSP 2.0 because that is generally better supported in coreboot and FSP 1.1 lacks quite some options that you might need for your mainboard. There are few publicly available blobs [3,4]. Alas, the public FSP 2.0 binary [4] is not officially validated for Skylake (but works so far in any case known to us). If you have a contact to Intel and an NDA, you can ask Intel for a binary for you processor, of course. I also want to encourage you to do so because Intel still has to learn that people are interested in coreboot+FSP. > Can you please tell what is the best starting point for a XEON board ? > I think there are no "Intel® XEON® Processor E3-1505M v5" boards in last > version of coreboot. > Am I right ? It depends more on the chipset variant than the processor. I did a port for a board with the C236 chipset. Yours might have the mobile version of that chipset which comes very close. My code is not upstreamed yet. Let me know if you want to peek at it soon. Other boards that use a similar chipset are: src/mainboard/intel/kblrvp/ (kblrvp8 variant) src/mainboard/intel/saddlebrook/ Nico [1] https://www.apress.com/us/book/9781484200711 Should be free to download. [2] Documentation/Intel/index.html [3] https://github.com/IntelFsp/FSP/tree/Skylake [4] https://github.com/IntelFsp/FSP/tree/Kabylake

3 years, 7 months

Re: [coreboot] Porting coreboot to new board

by Zvi Vered

Hi All, The links you provided: https://www.coreboot.org/Motherboard_Porting_Guide https://www.coreboot.org/Developer_Manual Does not mention Intel's FSP at all. How FSP is integrated during coreboot porting ? src\venorcode\intel contains 2 FSP versions. src\soc\intel contains fsp_baytrail, fsp_broadwell_de Thank you, Zvika On Thu, May 31, 2018 at 2:07 AM Youness Alaoui < kakaroto(a)kakaroto.homelinux.net> wrote: > This is the best I can do for you : > > > https://ark.intel.com/products/89608/Intel-Xeon-Processor-E3-1505M-v5-8M-Ca… > > Product Collection: Intel® Xeon® Processor E3 v5 Family > Code Name: Products formerly Skylake > > kakaroto@kakaroto:~/coding/purism/coreboot$ git grep SOC_INTEL_SKYLAKE > | grep mainboard > src/mainboard/google/chell/Kconfig: select SOC_INTEL_SKYLAKE > src/mainboard/google/glados/Kconfig: select SOC_INTEL_SKYLAKE > src/mainboard/google/lars/Kconfig: select SOC_INTEL_SKYLAKE > src/mainboard/intel/kblrvp/Kconfig: select SOC_INTEL_SKYLAKE > src/mainboard/intel/kunimitsu/Kconfig: select SOC_INTEL_SKYLAKE > src/mainboard/intel/saddlebrook/Kconfig: select SOC_INTEL_SKYLAKE > src/mainboard/purism/librem_skl/Kconfig: select SOC_INTEL_SKYLAKE > > I'm going to assume that the skylake Xeon is supported and will work > (from a coreboot standpoint) just the same as a Core i5 or whatever, > but it might not be the case. That will be your job to figure the rest > out. > > Good luck, > Youness. > > > On Wed, May 30, 2018 at 3:35 PM, Zvi Vered <veredz72(a)gmail.com> wrote: > > Hello Youness, > > > > Thank you very much for the detailed information ! > > > > Can you please tell what is the best starting point for a XEON board ? > > I think there are no "Intel® XEON® Processor E3-1505M v5" boards in last > > version of coreboot. > > Am I right ? > > > > Best regards, > > Zvika > > > > On Tue, May 29, 2018 at 9:15 PM Youness Alaoui > > <kakaroto(a)kakaroto.homelinux.net> wrote: > >> > >> Hi, > >> > >> I suggest you read the wiki : > >> https://www.coreboot.org/Developer_Manual and > >> https://www.coreboot.org/Motherboard_Porting_Guide > >> I would also suggest maybe (optional) that you read my blog posts > >> about my own experience porting coreboot to a new motherboard : > >> https://puri.sm/posts/diving-back-into-coreboot-development/ > >> https://puri.sm/posts/librem-13-coreboot-report-january-12-2017/ > >> https://puri.sm/posts/librem-13-coreboot-report-february-3rd-2017/ > >> https://puri.sm/posts/librem-13-coreboot-report-february-25th-2017/ > >> https://puri.sm/posts/coreboot-on-the-librem-13-v2-part-1/ > >> https://puri.sm/posts/coreboot-on-the-skylake-librems-part-2/ > >> > >> To answer your specific questions : It depends on your machine, is it > >> AMD or is it Intel? Is it Ivybridge or Broadwell or Skylake or > >> Apollolake, etc.. ? Does it have soldered RAM or does it use SODIMMs? > >> Depending on the CPU architecture, the CPU 'brand' and even the model > >> of the CPU itself, the port will be done very differently. You'd first > >> want to find a mainboard that is as close as your current one, and > >> start modifying that, there isn't "one mainboard to use as base" > >> because the code, files, etc.. are almost unique depending on the > >> CPU/northbridge/southbridge model, so use the closest one as your > >> base. > >> As far as I know, the file board_info.txt is just information about > >> the board, it's not getting used by coreboot, it's more of an > >> indication for developers. > >> As for the other files, it will depend once again on your board. I'd > >> say Kconfig and devicetree.cb are mandatory, the rest may or may not > >> be mandatory depending on your hardware. The cmos.layout for example > >> isn't mandatory, but you'd probably need it if you enable CMOS support > >> in your KConfig, The 'spd' files containing the RAM's SPD EEPROM > >> information are mandatory only if your board has soldered RAM (common > >> in laptops but not in desktops), but they are not needed (and actually > >> can't be provided) if the motherboard has SODIMM slots instead. So it > >> all depends. Your best bet is to look at what's there and see if you > >> need it or not and if you do, understand what it's for and what needs > >> to be changed in order to match your board. > >> Don't forget that before you get your board to boot with coreboot, you > >> will probably have to flash it and brick your board 100 times, so make > >> sure you have a backup of your original ROM copied somewhere safe and > >> that you have the hardware to re-program the SPI flash externally (and > >> test that it works), before you attempt to flash it. > >> Also, make sure you are patient, and ready to learn! > >> > >> Good luck! > >> Youness. > >> > >> > >> On Mon, May 28, 2018 at 10:31 PM, Zvi Vered <veredz72(a)gmail.com> wrote: > >> > Hello, > >> > > >> > I have to port coreboot to a new "Mainboard" not listed in menuconfig. > >> > Is there a basic "Mainboard" I should use as a starting point that > will > >> > be > >> > copied to my board ? > >> > > >> > The file board_info.txt contains few parameters. > >> > How can I know the meaning of each parameter and its possible values ? > >> > > >> > The board kontron/kt690 for example contains few files like: > >> > cmos.layout, > >> > devicetree.cb, etc > >> > Are all those files mandatory ? > >> > Is there a list of mandatory files or routines required in order to > port > >> > a > >> > board ? > >> > > >> > Your help is highly appreciated. > >> > Best regards, > >> > Zvika > >> > > >> > -- > >> > coreboot mailing list: coreboot(a)coreboot.org > >> > https://mail.coreboot.org/mailman/listinfo/coreboot >

3 years, 7 months

Re: [coreboot] Porting coreboot to new board

by Youness Alaoui

This is the best I can do for you : https://ark.intel.com/products/89608/Intel-Xeon-Processor-E3-1505M-v5-8M-Ca… Product Collection: Intel® Xeon® Processor E3 v5 Family Code Name: Products formerly Skylake kakaroto@kakaroto:~/coding/purism/coreboot$ git grep SOC_INTEL_SKYLAKE | grep mainboard src/mainboard/google/chell/Kconfig: select SOC_INTEL_SKYLAKE src/mainboard/google/glados/Kconfig: select SOC_INTEL_SKYLAKE src/mainboard/google/lars/Kconfig: select SOC_INTEL_SKYLAKE src/mainboard/intel/kblrvp/Kconfig: select SOC_INTEL_SKYLAKE src/mainboard/intel/kunimitsu/Kconfig: select SOC_INTEL_SKYLAKE src/mainboard/intel/saddlebrook/Kconfig: select SOC_INTEL_SKYLAKE src/mainboard/purism/librem_skl/Kconfig: select SOC_INTEL_SKYLAKE I'm going to assume that the skylake Xeon is supported and will work (from a coreboot standpoint) just the same as a Core i5 or whatever, but it might not be the case. That will be your job to figure the rest out. Good luck, Youness. On Wed, May 30, 2018 at 3:35 PM, Zvi Vered <veredz72(a)gmail.com> wrote: > Hello Youness, > > Thank you very much for the detailed information ! > > Can you please tell what is the best starting point for a XEON board ? > I think there are no "Intel® XEON® Processor E3-1505M v5" boards in last > version of coreboot. > Am I right ? > > Best regards, > Zvika > > On Tue, May 29, 2018 at 9:15 PM Youness Alaoui > <kakaroto(a)kakaroto.homelinux.net> wrote: >> >> Hi, >> >> I suggest you read the wiki : >> https://www.coreboot.org/Developer_Manual and >> https://www.coreboot.org/Motherboard_Porting_Guide >> I would also suggest maybe (optional) that you read my blog posts >> about my own experience porting coreboot to a new motherboard : >> https://puri.sm/posts/diving-back-into-coreboot-development/ >> https://puri.sm/posts/librem-13-coreboot-report-january-12-2017/ >> https://puri.sm/posts/librem-13-coreboot-report-february-3rd-2017/ >> https://puri.sm/posts/librem-13-coreboot-report-february-25th-2017/ >> https://puri.sm/posts/coreboot-on-the-librem-13-v2-part-1/ >> https://puri.sm/posts/coreboot-on-the-skylake-librems-part-2/ >> >> To answer your specific questions : It depends on your machine, is it >> AMD or is it Intel? Is it Ivybridge or Broadwell or Skylake or >> Apollolake, etc.. ? Does it have soldered RAM or does it use SODIMMs? >> Depending on the CPU architecture, the CPU 'brand' and even the model >> of the CPU itself, the port will be done very differently. You'd first >> want to find a mainboard that is as close as your current one, and >> start modifying that, there isn't "one mainboard to use as base" >> because the code, files, etc.. are almost unique depending on the >> CPU/northbridge/southbridge model, so use the closest one as your >> base. >> As far as I know, the file board_info.txt is just information about >> the board, it's not getting used by coreboot, it's more of an >> indication for developers. >> As for the other files, it will depend once again on your board. I'd >> say Kconfig and devicetree.cb are mandatory, the rest may or may not >> be mandatory depending on your hardware. The cmos.layout for example >> isn't mandatory, but you'd probably need it if you enable CMOS support >> in your KConfig, The 'spd' files containing the RAM's SPD EEPROM >> information are mandatory only if your board has soldered RAM (common >> in laptops but not in desktops), but they are not needed (and actually >> can't be provided) if the motherboard has SODIMM slots instead. So it >> all depends. Your best bet is to look at what's there and see if you >> need it or not and if you do, understand what it's for and what needs >> to be changed in order to match your board. >> Don't forget that before you get your board to boot with coreboot, you >> will probably have to flash it and brick your board 100 times, so make >> sure you have a backup of your original ROM copied somewhere safe and >> that you have the hardware to re-program the SPI flash externally (and >> test that it works), before you attempt to flash it. >> Also, make sure you are patient, and ready to learn! >> >> Good luck! >> Youness. >> >> >> On Mon, May 28, 2018 at 10:31 PM, Zvi Vered <veredz72(a)gmail.com> wrote: >> > Hello, >> > >> > I have to port coreboot to a new "Mainboard" not listed in menuconfig. >> > Is there a basic "Mainboard" I should use as a starting point that will >> > be >> > copied to my board ? >> > >> > The file board_info.txt contains few parameters. >> > How can I know the meaning of each parameter and its possible values ? >> > >> > The board kontron/kt690 for example contains few files like: >> > cmos.layout, >> > devicetree.cb, etc >> > Are all those files mandatory ? >> > Is there a list of mandatory files or routines required in order to port >> > a >> > board ? >> > >> > Your help is highly appreciated. >> > Best regards, >> > Zvika >> > >> > -- >> > coreboot mailing list: coreboot(a)coreboot.org >> > https://mail.coreboot.org/mailman/listinfo/coreboot

3 years, 7 months

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coreboot May 2018