coreboot June 2017

coreboot@coreboot.org

57 participants
159 discussions

ThinkPad X230 force battery discharge?
by Marek Behun 06 Jun '17

06 Jun '17

Hello, so I have found here https://wej.k.vu/coreboot/coreboot_on_the_lenovo_thinkpad_x220/ that I can set battery thresholds on X230 via ectool (or are the addresses for X220 only?). Is there a way to force discharge on the battery even when on AC adapter? Does someone have the information about all the settings in the EC ram on x230? Thank you. Marek

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BUG : riscv register address is incorrect
by 王翔 06 Jun '17

06 Jun '17

I tried using spike to debug the coreboot code. But encountered a problem: **mcounteren/smcounteren** address is not correct. The bug code is in `src/arch/riscv/virtual_memory.c` ``` 313 // Enable all user/supervisor-mode counters using 314 // v1.9.1 register addresses. 315 // They moved from the earlier spec. 316 // Until we trust our toolchain use the hardcoded constants. 317 // These were in flux and people who get the older toolchain 318 // will have difficult-to-debug failures. 319 write_csr(/*mcounteren*/0x320, 7); //this address shoud fix to 0x306 320 write_csr(/*scounteren*/0x321, 7); //this address shoud fix to 0x106 ``` I have already submitted a patch. https://review.coreboot.org/#/c/20043/ ------------------ 王翔安全研究员广州市腾御安信息科技有限公司广州市天河区珠江新城华穗路406号保利克洛维二期中景A座1020-1024

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Re: [coreboot] Current, BLOB free laptop available Europe?
by Paul Kocialkowski 06 Jun '17

06 Jun '17

Hey, Le lundi 05 juin 2017 à 18:20 +0300, Mike Banon a écrit : > actually Lenovo G505S has more freedom in some relations, if compared > to Chromebook R13 : for example, G505S does not require blobs for WiFi > and Bluetooth if you replace its' preinstalled Broadcom half size mini > PCI-e card with Atheros AR9462 (which has 2.4 GHz + 5 GHz + Bluetooth > and is top-of-the-line ath9k card) and its' price is just $8-$10 with > free shipping included ;) Well, I don't think that Wi-Fi is really a big deal compared to having coprocessors that can only run proprietary software, in addition to proprietary graphics init along with a proprietary EC. You can easily use an external ath9k_htc USB dongle on CrOS devices instead of the internal one, which solves the Wi-Fi situation easily. There's hope for the G505s though and I truly hope it can get close to the current freedom status of ARM CrOS devices! (And I'm still working hard to improve the EC situation.) > also there are some great technical > opportunities which chromebooks do not have - e.g. you could replace > WiFi mini pci-e card with double SATA ports RAID card, or you can > install 16 GB of RAM because G505S RAM is not soldered ! Still could > get G505S in good condition at many USA / European markets, e.g. > yesterday at eBay I saw G505S based at USA which costs just $95, also > UK-based in nearly mint condition ;) Also there are a lot of spare > parts available, which helps to ensure the long lifetime of this great > performance quad core laptop ( Chromebook is not even close at > performance, as far as I know ) Yeah, those are definitely nice technical features (but they're not freedom- related)! I also have a bit of a hard time with devices I can't replace broken parts for, because they're all soldered onto the same board! Cheers, Paul > On Wed, May 31, 2017 at 11:03 AM, Paul Kocialkowski <contact(a)paulk.fr> wrote: > > Hi, > > > > Le mardi 23 mai 2017 à 08:54 +0200, Paul Menzel a écrit : > > > I am looking for a new portable device available in Europe. > > > > > > Is it true, that the Acer Chromebook R 13 [1], is the only current BLOB > > > free device? The device currently costs 400 €. Is MediaTek “a good > > > citizen”, that means, do they provide datasheets and work on drivers? > > > > The Chromebook R13 (elm) is very close to being able to boot without non- > > free > > blobs. The only remaining blobs are the MT8173 PCM firmwares[0] in ARM > > Trusted > > Firmware. I am working hard to liberate them and I'm very confident that it > > will > > happen pretty soon. > > > > However, note that the kernel will require blobs for features such as: > > * hardware video decoding > > * Wi-Fi and bluetooth > > * GPU support > > > > I'm also not sure about the status of the PD (USB type-C controller) chip. > > It > > might also be running a proprietary firmware (maybe someone from the CrOS > > team > > can clarify this). > > > > Also, note that as usual with laptops, there are lots of other non-free > > components around that are preinstalled on the device, such as the webcam > > firmware. > > > > Note that ARMv7 CrOS devices (mainly RK3288 and Tegra K1) can also boot > > blobless > > and generally require less kernel blobs too. They also have much better > > upstream > > Linux support than the ARMv8 ones (which are more recent). For instance, I'm > > running a mainline kernel on the Tegra K1 nyans, which is quite usable > > despite > > some issues that I have left to fix. There's also a very high chance that > > the > > GPU will work with nouveau and free firmwares eventually (I'll be working > > with > > nouveau developers to try and make this happen). > > > > > The Samsung Chromebook Plus/Pro with RK3399 [2] are only available in > > > the USA, right? > > > > I am not aware of it being available in Europe. However, if you're fine with > > a > > qwerty layout, they work just as well in Europe ;) > > > > RK3399 can currently already boot blobless but also requires kernel blobs. > > However, it seems that the boot is currently broken with coreboot master and > > ToT > > depthcharge and vboot (I'll be investigating this soon). > > > > Also, the Chromebook Plus (kevin) does have a free software PD firmware. > > > > Finally, note that the Chromebook Pro is an Intel x86 device, so probably > > not > > very interesting given what you're looking for. > > > > Cheers, > > > > [0]: https://github.com/ARM-software/arm-trusted-firmware/blob/master/plat/m > > ediatek/mt8173/drivers/spm/spm_mcdi.c > > > > -- > > 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/ > > -- > > coreboot mailing list: coreboot(a)coreboot.org > > https://mail.coreboot.org/mailman/listinfo/coreboot -- 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] Asus M2N-E
by Martin A 05 Jun '17

05 Jun '17

Hi Mike, I use Cutecom. Why ? Martin ________________________________ De : Mike Banon <mikebdp2(a)gmail.com> Envoyé : lundi 5 juin 2017 17:03 À : Martin A Objet : Re: [coreboot] Asus M2N-E Hi Martin! Please tell: what tools are you using to receive this coreboot booting log? On Wed, May 24, 2017 at 12:14 AM, Martin A <tintinsansmilou(a)hotmail.com<mailto:tintinsansmilou@hotmail.com>> wrote: Ok Timothy, Thanks a lot for your help, really appreciate. I tried try with a dual core Athlon 64 X2 and the boot log is an exact copy of the Opteron's. So it has something to do with the mainboard. Hope Uwe Hermann see this. Martin. ________________________________ De : Timothy Pearson <tpearson(a)raptorengineering.com<mailto:tpearson@raptorengineering.com>> Envoyé : mardi 23 mai 2017 19:56 À : Martin A Cc : coreboot(a)coreboot.org<mailto:coreboot@coreboot.org> Objet : Re: [coreboot] Asus M2N-E -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 On 05/23/2017 03:37 AM, Martin A wrote: > > > Sorry, here is the "not so perfect" boot log. > > Many weirds points, no ? > > Thank you very much > > > Martin > > > ----------------------------------------------------------------------------------------------------------------------------------------------- > > BSP overran lower stack boundary. Undefined behaviour may result! <snip> This is probably the issue right here. This means a coreboot developer (preferably with access to this hardware) needs to take a look at the stack allocation for the 0xf Opteron chips to see why coreboot is overrunning the stack space. - -- Timothy Pearson Raptor Engineering +1 (415) 727-8645 (direct line) +1 (512) 690-0200 (switchboard) https://www.raptorengineering.com Raptor Engineering::Home Page<https://www.raptorengineering.com/> www.raptorengineering.com<http://www.raptorengineering.com> Let Raptor Engineering handle your next high-performance digital design! We offer consulting services in: Embedded systems design; Boot firmware development (e.g ... -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/ iQEcBAEBAgAGBQJZJHfKAAoJEK+E3vEXDOFbEl8H/1ZRYw1tQABpk/uhhuHY0R5G 97B6BaRW0PIJXUg0ekGCYfPEqXgtiSsr1K77VMY8wpov1aNkaGEMjRw300he4Dk2 sPqjUqwaHB57+qw1W9YYbYsDf3JGZEizNd9WapixHS1pXhEGDoR/g6NPL6LFyZMr +RGjPnLIBq5yksGGnF4UMa9/VWmdBXzUDcrFAKYB1ptQe42sIvtE8KvMRtXZmYqr bvS5WAksOPjZhmNntDPxopQE0HaxUyMZJINVALBVj+Hq20gFOWCwnNuB8m78zDPl 47ncYoHV82UKGEzklWlF1ohEKUAIKdI0NrbBqXxbk0zJabaYoEkIu3gVEKlgFKc= =r7in -----END PGP SIGNATURE----- -- coreboot mailing list: coreboot(a)coreboot.org<mailto:coreboot@coreboot.org> https://mail.coreboot.org/mailman/listinfo/coreboot

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Re: [coreboot] make crossgcc-i386 : ubsan.c error (with fix!) for GCC
by Paul Kocialkowski 05 Jun '17

05 Jun '17

Hi, Le dimanche 04 juin 2017 à 22:49 +0000, qma ster a écrit : > Good day! While building the coreboot's toolchain by using GCC 7.1.1 > version, I am getting the following error: […] > Found this solution here - > https://patchwork.openembedded.org/patch/138884/ . Would be great if > you could somehow import it to your code I've had the very same issue when building crossgcc today. Would you like to make a patch to coreboot for that? If not, I'll probably end up doing it soon. Cheers, -- 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] VT-d support
by Himanshu Chauhan 05 Jun '17

05 Jun '17

> On 05-Jun-2017, at 10:19 PM, ron minnich <rminnich(a)gmail.com> wrote: > > The reason I ask about what you need is that on chromebooks the main coreboot support came down to 'don't disable anything’. I think its can’t just be disabled. Its just that kernel is not given any knowledge about its existence. This is what I want to know. The commercial BIOSes give an option of “enable VT-d” support. What do they do when this option is selected? Can this be implemented in Coreboot? This probably brings me to your next question of what is required. I would spend some time to figure that out. > > The DMAR requirements are not met on all platforms. But even after boot you can insert DMAR tables into kernels. > > So there is a key distinction between required support and desired support, and I wonder if you could figure out what is required and let us know what it is. > > BTW, Do we have core boot tested on Intel’s Atom based C3xxx family SoCs? > > On Mon, Jun 5, 2017 at 9:39 AM Zoran Stojsavljevic <zoran.stojsavljevic(a)gmail.com> wrote: > > what support does it need? > > Intel Virtualization Technology for Directed I/O" (VT-d). VT-d is a virtualized IOMMU, so by using HYP type 1 there should be a VT-d driver supporting VT-d HW extension (?), as my best understanding is > > The practical implications are Graphics and Network Connectivity in Guests. DMA Remapping is the feature of VT-d. > > Good net pointer to read: https://unix.stackexchange.com/questions/34428/do-virtualbox-or-vmware-use-… > > > Is anybody working on this? > > Don't think so... If anything is done, I guess, it is done by simplistic implementation of the feature called: pass-through (so guest by its own drivers is using directly platform devices' HW bypassing HYP1, my best guess). > > Zoran > On Mon, Jun 5, 2017 at 6:11 PM, ron minnich <rminnich(a)gmail.com> wrote: > > > On Mon, Jun 5, 2017 at 9:00 AM Himanshu Chauhan <hschauhan(a)nulltrace.org> wrote: > Hi, > > VT-d requires support from BIOS. Does coreboot support VT-d? > > > > what support does it need? > > -- > coreboot mailing list: coreboot(a)coreboot.org > https://mail.coreboot.org/mailman/listinfo/coreboot

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Re: [coreboot] VT-d support
by Himanshu Chauhan 05 Jun '17

05 Jun '17

> On 05-Jun-2017, at 10:50 PM, ron minnich <rminnich(a)gmail.com> wrote: > > > > On Mon, Jun 5, 2017 at 9:58 AM Himanshu Chauhan <hschauhan(a)nulltrace.org> wrote: > > I think its can’t just be disabled. > > oh, really? Why do you think that? Have you looked at the relevant MSR and what is the basis of your claim? I was just guessing what it could be. :) > > ron

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Re: [coreboot] VT-d support
by Zaolin 05 Jun '17

05 Jun '17

You are asking for VT-d support. You are talking about Intel platforms ? But for which specific platform you are asking for ? There are so many.. Am 05.06.2017 um 10:24 schrieb Himanshu Chauhan: > >> On 05-Jun-2017, at 9:41 PM, ron minnich <rminnich(a)gmail.com> wrote: >> >> >> >> On Mon, Jun 5, 2017 at 9:00 AM Himanshu Chauhan <hschauhan(a)nulltrace.org> wrote: >> Hi, >> >> VT-d requires support from BIOS. Does coreboot support VT-d? >> >> >> >> what support does it need? > BIOS adds DMAR and other entries in the ACPI table. I am not quite sure how these entries are formed exactly though. > > https://www.mjmwired.net/kernel/Documentation/Intel-IOMMU.txt > > http://www.intel.com/content/dam/www/public/us/en/documents/product-specifi… > > Is anybody working on this? > > Regards > Himanshu > > > >

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Re: [coreboot] VT-d support
by ron minnich 05 Jun '17

05 Jun '17

The reason I ask about what you need is that on chromebooks the main coreboot support came down to 'don't disable anything'. The DMAR requirements are not met on all platforms. But even after boot you can insert DMAR tables into kernels. So there is a key distinction between required support and desired support, and I wonder if you could figure out what is required and let us know what it is. On Mon, Jun 5, 2017 at 9:39 AM Zoran Stojsavljevic < zoran.stojsavljevic(a)gmail.com> wrote: > > what support does it need? > > Intel Virtualization Technology for Directed I/O" (VT-d). VT-d is a > virtualized IOMMU, so by using HYP type 1 there should be a VT-d driver > supporting VT-d HW extension (?), as my best understanding is > > The practical implications are Graphics and Network Connectivity in > Guests. DMA Remapping is the feature of VT-d. > > Good net pointer to read: > https://unix.stackexchange.com/questions/34428/do-virtualbox-or-vmware-use-… > > > Is anybody working on this? > > Don't think so... If anything is done, I guess, it is done by simplistic > implementation of the feature called: pass-through (so guest by its own > drivers is using directly platform devices' HW bypassing HYP1, my best > guess). > > Zoran > On Mon, Jun 5, 2017 at 6:11 PM, ron minnich <rminnich(a)gmail.com> wrote: > >> >> >> On Mon, Jun 5, 2017 at 9:00 AM Himanshu Chauhan <hschauhan(a)nulltrace.org> >> wrote: >> >>> Hi, >>> >>> VT-d requires support from BIOS. Does coreboot support VT-d? >>> >>> >>> >> what support does it need? >> >> -- >> coreboot mailing list: coreboot(a)coreboot.org >> https://mail.coreboot.org/mailman/listinfo/coreboot >> >

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Re: [coreboot] VT-d support
by Zoran Stojsavljevic 05 Jun '17

05 Jun '17

> what support does it need? Intel Virtualization Technology for Directed I/O" (VT-d). VT-d is a virtualized IOMMU, so by using HYP type 1 there should be a VT-d driver supporting VT-d HW extension (?), as my best understanding is The practical implications are Graphics and Network Connectivity in Guests. DMA Remapping is the feature of VT-d. Good net pointer to read: https://unix.stackexchange.com/questions/34428/do- virtualbox-or-vmware-use-the-intel-vt-d-feature > Is anybody working on this? Don't think so... If anything is done, I guess, it is done by simplistic implementation of the feature called: pass-through (so guest by its own drivers is using directly platform devices' HW bypassing HYP1, my best guess). Zoran On Mon, Jun 5, 2017 at 6:11 PM, ron minnich <rminnich(a)gmail.com> wrote: > > > On Mon, Jun 5, 2017 at 9:00 AM Himanshu Chauhan <hschauhan(a)nulltrace.org> > wrote: > >> Hi, >> >> VT-d requires support from BIOS. Does coreboot support VT-d? >> >> >> > what support does it need? > > -- > coreboot mailing list: coreboot(a)coreboot.org > https://mail.coreboot.org/mailman/listinfo/coreboot >

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coreboot June 2017