#asahi-re on 2022-03-19 — irc logs at oftc.irclog.whitequark.org

2021-07-26 22:57 ChanServ changed the topic of #asahi-re to: Asahi Linux: porting Linux to Apple Silicon macs | Hardware / boot process / firmware interface reverse engineering | WARNING: this channel (only) may contain binary reverse engineering discussion | RE policy: https://alx.sh/re (MANDATORY READ) | GitHub: https://alx.sh/g | Wiki: https://alx.sh/w | Logs: https://alx.sh/l/asahi-re

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07:58 <rqou_> hi, trying to setup hypervisor tracing of macos 12.3 on a m1 max and getting a kernel panic with both release and development kernels. what am i doing wrong?

07:58 <rqou_> panic: https://gist.github.com/rqou/d20f22af61cd401169093b0a21903cdc

07:59 <rqou_> python command: python proxyclient/tools/run_guest.py blob/release-kernel.macho -- "debug=0x14e serial=3 apcie=0xfffffffe wdt=-1"

07:59 <Jamie[m]1> somebody else has mentioned that problem, I'm not sure if anyone has 12.3 working under hv

07:59 <sven> iirc someone else ram into a similar panic a few days ago

07:59 <sven> *ran

07:59 <jannau> rqou_: probably nothing, I get that as well but haven't manged to look into it

08:00 <sven> and there is that someone :)

08:01 <rqou_> ah well, what's the procedure for installing an older version to trace?

08:03 <jannau> rqou_: `softwareupdate --fetch-full-installer --full-installer-version 12.1` will download a full installer into Applications to install that version into a new apfs container

08:04 <rqou_> +1, thanks

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09:15 <kode54> that's useful if you actually have >256GB of storage space

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09:25 <rqou_> i have a m1 max machine with enough space, it's just that the installer is being dumb rn and failing

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10:27 <rqou_> i've finally gotten this to work (booting 12.1 via m1n1 hypervisor). going to sleep now, i will probably have more questions on how to get started with the tracing infrastructure in the morning

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14:12 <jannau> rqou_: https://github.com/AsahiLinux/m1n1/pull/172

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18:49 <rqou_> jannau: thanks, but i'll probably just stick to 12.1 for now because i don't want to have to reinstall macos *again*

18:59 <jannau> rqou_: sure. what are you looking at? MMIO hardware is obviously stable and the firmware interfaces have been stable withing 12.x as far as we have seen

18:59 <jannau> was mostly a notification that the issue has been fixed

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21:11 <rqou_> i'm still trying to get my feet wet and figure out all the tooling, so currently i'm looking at the JPEG block (which i assume should be simple and straightforward)

21:11 <rqou_> Eventually(TM) i would like to look into ANE

21:25 <rqou_> oh yeah, maybe also figure out the typec efuse for m1 max while i'm at it? although i do not have any of the context on that

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