m1n1
freebsd-src
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m1n1 | freebsd-src | |
---|---|---|
17 | 133 | |
3,362 | 7,461 | |
1.8% | 1.4% | |
8.9 | 10.0 | |
17 days ago | 5 days ago | |
Python | C | |
MIT License | GNU General Public License v3.0 or later |
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
m1n1
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Asahi Linux project's OpenGL support on Apple Silicon officially surpasses Apple
One of the coolest things (IMO) about the entire Asahi effort, and why I'm not at all surprised that they surpassed Apple, was the dedicated effort to build bespoke developer-friendly Python tooling early in the reverse engineering process.
https://asahilinux.org/2021/08/progress-report-august-2021/
> Since the hypervisor is built on m1n1, it works together with Python code running on a separate host machine. Effectively, the Python host can “puppeteer” the M1 and its guest OS remotely. The hypervisor itself is partially written in Python! This allows us to have a very fast test cycle, and we can even update parts of the hypervisor itself live during guest execution, without a reboot.
> We then started building a Python implementation of this RPC protocol and marshaling system. This implementation serves a triple purpose: it allows us to parse the DCP logs from the hypervisor to understand what macOS does, it allows us to build a prototype DCP driver entirely in Python, and it will in the future be used to automatically generate marshaling code for the Linux kernel DCP driver.
Code here: https://github.com/AsahiLinux/m1n1/blob/main/proxyclient/m1n...
If you watch any of Asahi Lina's streams from the time before they had working drivers, she's able to weave together complex bitflag-manipulating pipelines at the speed of thought with self-documenting code, all in Python running on the host machine, all while joking with viewers via her adorable avatar. I've never seen anything like it before. The whole workflow is a tremendous and unprecedented accomplishment by the entire Asahi team.
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Strange (scheduling?) latency on the host when KVM guest runs something demanding
I wrote a m1n1 experiment to test IRQ delivery in EL1 and noticed something was weird. I already knew about that IRQ control register (3 masks IRQs entirely and is the default, that whole thing took like a day or two back when I first added M1 Pro/Max support), so I tried other values and 2 fixed it.
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Apple Silicon - iBoot
They have not dropped hardly any official documentation on iBoot. The best safe documentation is in: https://github.com/AsahiLinux/m1n1/ There's a lot of tainted docs out there because the source to iBoot was illegally leaked a while back, but marcan is known for being a bit of a hardass when it comes to legal reverse engineering (thankfully).
- Everything we know about the Apple Neural Engine (ANE)
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Dumb question - is it possible to install Windows on top of Asahi?
No its uefi boot manager “https://github.com/AsahiLinux/m1n1 “
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Updates galore! November 2022 Progress Report
What makes you say there isn't community participation? The repo for m1n1, at least, has 42 contributors according to Github[1]. There's plenty more reporting bugs and such, and their IRC channel seems relatively active.
1: https://github.com/AsahiLinux/m1n1
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A Secret Apple Silicon (M1) Extension to Accommodate an Intel 8080 Artifact
I can confirm that’s pretty much exactly what happens. I did some digging with the help of m1n1 a while back, and essentially yeah, this is almost exactly what it does. The only difference is that, rather than tracking which cores are running emulated code, the scheduler keeps track of which processes are running in emulation mode, and prior to returning to userland after a context switch, the kernel sets control register bits for features like TSO (which is what I was interested in looking into at the time; I believe that specifically is controlled somewhere in the actlr_el1 register). Although only the P-cores actually implement the necessary x86 emulation behavior, the scheduler of course wants to ensure that a process is not pinned to any one core, and that native and emulated processes alike can preempt and interleave with each other on the P-cores just as they would if there were no emulation.
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Asahi Lina (Linux Developer VTuber) wants to write the new Apple Silicon GPU driver for Linux in Rust!
That shim/stub is m1n1. It is the bootloader for Asahi Linux, but also makes it possible to talk to the hardware over USB as just described by Lina. marcan even implemented a small hypervisor in m1n1, so it can be used to run MacOS and trace how MacOS is accessing the hardware.
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questions about the new architecture
Windows 11 ARM dualboot will come to M1 macs in the near future. See m1n1 for progress.
- First triangle ever rendered on an M1 Mac with a fully open-source driver
freebsd-src
- You shouldn't run a BSD on a PC
- Linux Crisis Tools
- What about the vfs.zfs.bclone_enabled sysctl now?
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Personal FreeBSD PKGBASE Update Server
2023-06-26: https://github.com/freebsd/freebsd-src/commit/ee0aa1ce12b3caea34477a31e9d2111a329e33b9 to main (tagged release/14.0.0).
- What version of ZFS at FreeBSD solves the block cloning issue?
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Installing FreeBSD 14 Stable on an T480 Laptop w/ an Encrypted Home Directory
It's not yet in FreeBSD base so if you want to test it you'll have to use the patch from the PR: https://github.com/freebsd/freebsd-src/pull/881
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FreeBSD 14.0 Delivering Great Performance Uplift
Lots of great work by many people. But I bet this guy and his optimizations to the vfs and locking has made a significant impact.
https://github.com/freebsd/freebsd-src/commits?author=mjguzi...
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ZFS 2.2.1: Block Cloning disabled due to data corruption
and then there were deep concerns about the stability of same, so vfs.zfs.bclone_enabled = 0 was left in-place
https://github.com/freebsd/freebsd-src/commit/068913e4ba3dd9...
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FreeBSD 14.0-Release Announcement
Well there are some examples:
https://github.com/freebsd/freebsd-src/tree/main/share/examp...
But yeah that pf.conf could be expanded allot, but there are many source to cobble a conf together. My conf is massive but 99.9% commented out so i have my "template" for nearly everything, from mail to web to blacklistd etc.
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Git cherry-pick and revert use 3-way merge
The BSD version is sort of very recent, for what it's worth -- FreeBSD imported a not fully functional version in 2017 and has seen more work on it in 2022: https://github.com/freebsd/freebsd-src/commits/main/usr.bin/... , but the default version shipped is still GNU diff3: https://man.freebsd.org/cgi/man.cgi?query=diff3&apropos=0&se... .
What are some alternatives?
HelloSilicon - An introduction to ARM64 assembly on Apple Silicon Macs
podman - Podman: A tool for managing OCI containers and pods.
unix-history-repo - Continuous Unix commit history from 1970 until today
musl - unofficial musl mirror git://git.musl-libc.org/musl
pdp7-unix - A project to resurrect Unix on the PDP-7 from a scan of the original assembly code
darwin-xnu - Legacy mirror of Darwin Kernel. Replaced by https://github.com/apple-oss-distributions/xnu
rss-proxy - RSS-proxy allows you to do create an RSS or ATOM feed of almost any website, just by analyzing just the static HTML structure.
src - Read-only git conversion of OpenBSD's official CVS src repository. Pull requests not accepted - send diffs to the tech@ mailing list.
nixos-apple-silicon - Resources to install NixOS bare metal on Apple Silicon Macs
coreutils - upstream mirror
libimobiledevice - A cross-platform protocol library to communicate with iOS devices
ravynos - A BSD-based OS project that aims to provide source and binary compatibility with macOS® and a similar user experience.