#nixos-aarch64 on 2020-06-21

2019-09-27 17:31 gchristensen changed the topic of #nixos-aarch64 to: Get access to the NixOS Community aarch64 build box: https://github.com/nix-community/aarch64-build-box ... todo: https://hydra.nixos.org/jobset/nixpkgs/trunk#tabs-jobs build box status: https://status.nixos.org/grafana/d/5LANB9pZk/per-instance-metrics?orgId=1&refresh=30s&var-instance=147.75.77.190

00:10 <samueldr> progress with the pbp, the usb patches do indeed work

00:10 <samueldr> as is written in the mailing list exchange (I should have read) it is incomplete for display, but there is a link to a location with patches :)

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03:00 <samueldr> blah! about an hour of testing gone in smokes... enabling DEBUG in common.h must mess some timing critical thing in the SPL

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03:55 <clever> samueldr: ive run into the same problem with the rpi emmc driver, print too much in the critical sections, and all replies from the SD card get corrupted

03:58 <samueldr> and it looks like I can't get the display going with the partial information from that thread without actively looking into it

03:58 <samueldr> the user's config simply won't boot

03:58 <samueldr> *maybe* they used the rockchip blob and that's why they didn't face issues in the SPL

03:59 * clever heads off to bed

03:59 <samueldr> at the very least it looks like with 2020.04 and current master there is the same issue with the equivalent changes and equivalent config

03:59 <samueldr> I will too :)

04:00 <samueldr> hopefully DEBUG can be coaxed into giving enough info in the rockchip SPL without failing

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04:53 <angerman> wow Amlogic chips. What were they thinking with their Firmware Image Package and sign and encryption and compression garbage? That feels actively hostile...

04:54 <samueldr> protecting their first business: set top box with DRM keys

04:54 <samueldr> and I agree

04:54 <samueldr> quite hostile

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05:34 <Ke> samueldr: thanks, laziness paid off once again for me

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08:41 <prusnak> Vulkan driver for RPi3+ and older: https://www.phoronix.com/scan.php?page=news_item&px=RPi-VK-Driver

08:41 <angerman> samueldr: Seems pretty pointless... the one for the previous version was reversed... this binary doesn't seem to be specifically obfruscrated.

08:42 <angerman> samueldr: I guess it's all about first understanding what their packageing and varous sig/enc stages actually do. Then see if the meson-tools are capable for some of it. And finally reverse the missing bits.

08:43 <angerman> samueldr: but then again I don't understand why the DRM keys are protected with this in any form, that a more open version of their tool wouldn't.

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10:00 <flokli> some more fixes, including a cleanup of our extlinux generation stuff here: https://github.com/NixOS/nixpkgs/pull/91195

10:00 <{^_^}> #91195 (by flokli, 12 hours ago, open): extlinux-conf-builder: allow a custom FDT to be specified

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13:46 <AmandaC> restricted mode"

13:46 <AmandaC> Appologies if this is the wrong place, but I'm toying with nix-on-droid, and decided to do what I did for my mac and my laptop, and make my hydra machine build and test the config, but I'm running into this, and I don't have nearly enough nix knowledge yet to know how to fix it: error: "access to path '/nix/store/kz8lil7m0c4cjk2rv4skicalr31a47dv-proot-termux-unstable-2020-04-25-i686-unknown-linux-android' is forbidden in

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17:05 <samueldr> angerman: "protected", I'm saying because of a discussion I had with a platform integrator

17:05 <samueldr> they, too, hate this, especially given that it's all known, reversed, and re-implemented with offline tools

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17:34 <Ke> it's not like other vendors do not support restricted boot, they just don't fuse in the keys at the factory, unless requested

17:35 <Ke> well many of them do though so it's more like some other vendors

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17:49 <danielrf[m]> vim

17:49 <danielrf[m]> whoops, wrong window obviously

17:50 <Ke> next you'll be here pleading help to exit vim

17:50 <danielrf[m]> nah, that would be emacs for me :)

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18:35 <quinn> C-x C-c iirc

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18:38 <Ke> most computers have exit editor button in the case

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21:43 <minicom9> is there also a version for armv7 devices?

21:55 <samueldr> it's technically feasible, but not really ready to use

21:56 <samueldr> with cross-compilation you can get started to a somewhat limited level

21:56 <samueldr> there are attempts at getting native builds going, but it's not easy

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23:39 <samueldr> hmm, seems u-boot 2020.07 may have a regression in speed on the PBP, everything is laggy (during u-boot)

23:40 <samueldr> (just finished porting all patches that are desirable forward)

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23:54 <angerman> samueldr: so you talked to integrators, and they told you that even they couldn't get anyone from amlogic give them support? Wow.

23:54 <angerman> samueldr: looking at RockChip at the same time, they are like an open book.

23:55 <samueldr> not sure about support, but they didn't have anything better to make the fip images

23:55 <samueldr> (is it fip?)

23:56 <angerman> Firmare Image Package.

23:56 <angerman> but that's the mildly less annoying part. That one is mostly concatinaing blobs, and padding them.

23:56 <samueldr> it's the dumb "reason" I gave you that they (the integrators) received

23:57 <angerman> the aml_encrypt_g12b is the really retarded part. A aarch64/elf binary to "sign" and "encrypt" and "package" the final bootloader

23:57 <angerman> and it also does lz4 compression

23:57 <angerman> aml_encrypt_gxb was reversed in the meson-tools by some guy from SuSE I believe.

23:58 <angerman> samueldr: https://lkml.org/lkml/2020/3/20/57, the blx_fix stuff is annoying but "ok", look at the aml_encrypt_g12b calls though 🤮