coreboot June 2018

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105 discussions

Optiplex 790 now has preliminary support by coreboot
by Taiidan＠gmx.com 15 Jan '20

15 Jan '20

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.

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Re: [coreboot] Upgrade the 12 years old LZMA libraries - should we do it?
by Carl-Daniel Hailfinger 29 Jan '19

29 Jan '19

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 outdated-by-12-years 4.42 to the current version 18.04 , speed and 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 outdated version?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

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Re: [coreboot] AMD IMC open source firmware replacement
by Rudolf Marek 07 Jan '19

07 Jan '19

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

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Lenovo T410 Coreboot
by A. Veek 14 Dec '18

14 Dec '18

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FOSDEM Hardware Enablement Devroom
by Paul Kocialkowski 04 Dec '18

04 Dec '18

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/

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Re: [coreboot] RISC-V HiFive Unleashed board added to coreboot - has PCI-e slots via exp board
by Jonathan Neuschäfer 12 Sep '18

12 Sep '18

On Fri, Jun 22, 2018 at 03:04:06PM +0800, Shawn wrote: > Hi Jonathan, > > On Thu, Jun 21, 2018 at 7:48 PM, Jonathan Neuschäfer [...] > > With the unfinished coreboot port, I want it to look like this (although > > *a lot* of work has to be done on coreboot first, and I'm currently not > > actively working on that, for a few months): > > > > MSEL (ROM0) -> ZSBL (ROM1) -> coreboot (+bbl?) -> Linux, or > > MSEL (ROM0) -> coreboot (+bbl?) -> Linux > > > > ZSBL can be skipped, so you don't need to run closed source ROM code, at > > least as far as the hardware is concerned. > > > Is ZSBL really can be skipped? I thought it was part of internal ROM > inside the chip. Yes. If you set the MSEL switches to 0001, the code in the MSEL ROM (aka. ROM0) jumps directly into the memory-mapped SPI flash, instead of into the big ROM1, where ZSBL is. Coreboot doesn't yet support this mode, but the hardware allows it. > > (And note that this is just the situation on this particular SoC. Other > > SoCs from SiFive or other vendors may boot differently.) > > > Well, if FSBL is the place where coreboot comes into play, we might > only have two options: 1, Reversing the FSBL which is ~9k assembly LOC > 2, SiFive make the FSBL open source( I don't see any reason why they > don't do it if they intend to build an open eco-system for RISC-V). A high-level list of tasks that FSBL performs is in the manual[1]: • Switch core frequency to 1 GHz (or 500 MHz if TLCLKSEL =1) by configuring and running off the on-chip PLL • Configure DDR PLL, PHY, and controller • Set GEM GXL TX PLL to 125 MHz and reset it • If there is an external PHY, reset it • Download BBL from a partition with GUID type 2E54B353-1271-4842-806F-E436D6AF69851 • Scan the OTP for the chip serial number • Copy the embedded DTB to DDR, filling in FSBL version, memory size, and MAC address • Enable 15 of the 16 L2 ways (this removes almost all of the L2 LIM memory) • Jump to DDR memory (0x8000_0000) Initializing the PLLs and reading the OTP ROM should be easy enough because both are documented in, I think, sufficient detail. Section 20.3 describes the initialization sequence for the DRAM controller, but leaves out the values for the register for "memory timing settings, PAD mode configuration, initialization, and training." It says: "Please contact SiFive directly to determine the complete register settings for your application." I will ask on the forum. Assuming that SiFive will tell us the values of the missing configuration registers, I don't think we need to reverse-engineer FSBL. Greetings, Jonathan Neuschäfer [1]: https://www.sifive.com/documentation/chips/freedom-u540-c000-manual/

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Re: [coreboot] POWER9 / Talos II coreboot support?
by Timothy Pearson 05 Aug '18

05 Aug '18

As of late last week: W have the processor user guide, full register documentation, and a smattering of other resources released publicly [1]. The PHB documentation is still in process and still moving forward, along with the electrical datasheet. If you are interested in documentation that isn't already available and isn't on the to-do list, please let me know. My understanding is that the list above should be pretty much everything needed for firmware work. [1] https://wiki.raptorcs.com/wiki/Category:Documentation On 06/07/2018 08:05 PM, ron minnich wrote: > where are we on the docs at this point > > > On Thu, Jun 7, 2018 at 5:59 PM Timothy Pearson > <tpearson(a)raptorengineering.com <mailto:tpearson@raptorengineering.com>> > wrote: > > For anyone wanting a more affordable development platform for POWER9, > check out the Talos II Lite: > > https://raptorcs.com/TALOSIILITE/ > > Hopefully we're getting down to a price point where coreboot development > becomes more practical (if still a bit painful)? > > Looking forward to seeing coreboot on ppc64el systems! > > On 05/29/2018 03:45 PM, Timothy Pearson wrote: >> Sorry, can't add today....it's a little over 6,000 pages of new >> documentation. Still, hardly light reading! > >> On 05/29/2018 03:39 PM, Timothy Pearson wrote: >>> Register documentation was published today. Links to the three > volumes >>> (over 7000 pages of documentation!) > >>> > https://wiki.raptorcs.com/wiki/File:POWER9_Registers_vol1_version1.1_pub.pdf > >>> > https://wiki.raptorcs.com/wiki/File:POWER9_Registers_vol2_version1.2_pub.pdf > >>> > https://wiki.raptorcs.com/wiki/File:POWER9_Registers_vol3_version1.2_pub.pdf > >>> That leaves only the PHB documentation in process at this point. > Almost >>> there.... > >>> On 05/12/2018 02:34 AM, Timothy Pearson wrote: >>>> 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> > <mailto:tpearson@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

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Re: [coreboot] [RFH] Native AMD fam10-15 support
by Taiidan＠gmx.com 13 Jul '18

13 Jul '18

On 06/15/2018 03:33 AM, Kyösti Mälkki wrote: > On Fri, Jun 15, 2018 at 8:58 AM, Taiidan(a)gmx.com <Taiidan(a)gmx.com> wrote: > >> On 06/14/2018 08:42 PM, Kyösti Mälkki wrote: >>> On Thu, Jun 14, 2018 at 4:38 AM, qtux <mail(a)qtux.eu> wrote: >>> Now, since commit babb2e6 that claims to add S3 support on kgpe-d16 is >>> within the latter period, I do not quite see how S3 support could have >>> worked with that commit on kgpe-d16. Or maybe this feature was never >>> retested once it was rebased and upstreamed. Nor can I see how it >>> could have worked for any commit in 4.6 >> >> I just tested S3 again and it worked fine on my v4.6 D16. >> > > Please state the commit hash of the source tree you built and booted from, > we don't literally have such tag as "v4.6". I was using the coreboot-4.6.tar.xz from the coreboot download page which is why I didn't include the hash. [ 0.000000] DMI: ASUS KGPE-D16/KGPE-D16, BIOS 4.6-db508565d2483394b709654c57533e55eebace51 07/10/2017 > > Repeat tests with current master. Thanks, I will have info for you by the end of the this weekend and I will also investigate things myself if S3 doesn't work...

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Re: [coreboot] RV: Error booting with TPM enabled.
by Nico Huber 03 Jul '18

03 Jul '18

Hi, On 29.06.2018 16:13, Jorge Fernandez Monteagudo wrote: > In 00730F01/northbridge.c I can see: > [...] > static struct device_operations pci_domain_ops = { > [...] > and in 00660F01/northbridge.c there is no acpi_name! The most related to the previous one is: > [...] > static struct device_operations northbridge_operations = sorry, I wrote `northbridge device` sometimes, what I really meant is the `domain device`, hence you have to add it to `pci_domain_ops` just like in the 00730F01 case. > On monday I'll try to add the method to 00660F01 code! Good luck! Nico > > ________________________________ > De: Nico Huber <nico.h(a)gmx.de> > Enviado: viernes, 29 de junio de 2018 15:47:09 > Para: Jorge Fernandez Monteagudo; coreboot(a)coreboot.org; Zaolin > Asunto: Re: [coreboot] RV: Error booting with TPM enabled. > > On 29.06.2018 12:48, Jorge Fernandez Monteagudo wrote: >> Ok, I think I've found the problem... If I force in 'src/drivers/pc80/tpm/tis.c' >> >> the path value to "\\_SB_.PCI0.LIBR" it works! >> >> Now, I'll try to guess from where the "\_SB.\_SB.LIBR" current value comes from... >> but now it's working. > > This is expected if you still haven't implemented `.acpi_name` for > your northbridge device. In case you haven't tried it yet: Just copy > what `nb/amd/pi/00730F01/northbridge.c` does about `.acpi_name` to > `nb/amd/pi/00660F01/northbridge.c`. > > Again, if the domain device doesn't implement `.acpi_name`, its parent > device will be asked. And in this case the parent, the root device, > always returns `\_SB`. > > Nico >

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vboot
by Akendo 29 Jun '18

29 Jun '18

Hey everyone, I'm reading through the source code and found vboot. It should standing for verified boot. However I can't find any documentation(except the source code). Can anyone provide me with some explanation how to get it going or to make a little more sense of it? As far as I understand it needs to verify the signature against a Key/CA. This key should be located within the TPM. But how should the key/CA look like? Will be a classic x509 be enough? best regards, akendo

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coreboot June 2018