QEMU
UTM
Our great sponsors
QEMU | UTM | |
---|---|---|
189 | 242 | |
9,220 | 24,029 | |
2.2% | 2.6% | |
10.0 | 9.5 | |
7 days ago | 3 days ago | |
C | Swift | |
GNU General Public License v3.0 or later | Apache License 2.0 |
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.
QEMU
-
Autoconf makes me think we stopped evolving too soon
A better solution is just to write a plain ass shell script that tests if various C snippets compile.
https://github.com/oilshell/oil/blob/master/configure
https://github.com/oilshell/oil/blob/master/build/detect-pwe...
Not an unholy mix of m4, shell, and C, all in the same file.
---
These are the same style as a the configure scripts that Fabrice Bellard wrote for tcc and QEMU.
They are plain ass shell scripts, because he actually understands the code he writes.
https://github.com/qemu/qemu/blob/master/configure
https://github.com/TinyCC/tinycc/blob/mob/configure
OCaml’s configure script is also “normal”.
You don’t have to copy and paste thousands of lines of GNU stuff that you don’t understand.
(copy of lobste.rs comment)
-
WASM Instructions
Related:
A fast Pascal (Delphi) WebAssembly interpreter:
https://github.com/marat1961/wasm
WASM-4:
https://github.com/aduros/wasm4
Curated list of awesome things regarding WebAssembly (wasm) ecosystem:
https://github.com/mbasso/awesome-wasm
Also, it would be nice if there was a WASM (soft) CPU for QEMU, which (if it existed!) would go here:
-
Revng translates (i386, x86-64, MIPS, ARM, AArch64, s390x) binaries to LLVM IR
> architectural registers are always updated
In tiny code, the guest registers (global TCG variables) are stored in the host's registers until you either call an helper which can access the CPU state or you return (`git grep la_global_sync`). This is the reason why QEMU is not so terribly slow.
But after a check, this also happens when you access the guest memory address space! https://github.com/qemu/qemu/blob/master/include/tcg/tcg-opc... (TCG_OPF_SIDE_EFFECTS is what matters)
But still, in the end, it's the same problem. What QEMU does, can be done in LLVM too. You could probably be more efficient in LLVM by using the exception handling mechanism (invoke and friends) to only serialize back to memory when there's an actual exception, at the cost of higher register pressure. More or less what we do here: https://rev.ng/downloads/bar-2019-paper.pdf
-
Multipass: Ubuntu Virtual Machines Made Easy
Some of these tools include Oracle VM VirtualBox (that I've used since before the acquisition of Sun Microsystems by Oracle), VMWare Workstation Player, and QEMU, but last year, I found out about Multipass.
-
Libsodium: A modern, portable, easy to use crypto library
For C/C++ projects that use meson as the build system, there is an excellent way to manage dependencies:
https://mesonbuild.com/Wrapdb-projects.html
https://mesonbuild.com/Wrap-dependency-system-manual.html
meson will download and build the libraries automatically and give you a variable which you pass as a regular dependency into the built target:
https://github.com/qemu/qemu/tree/005ad32358f12fe9313a4a0191...
https://github.com/harfbuzz/harfbuzz/tree/main/subprojects
https://github.com/harfbuzz/harfbuzz/blob/37457412b3212463c5...
Or, if you're using proper operating systems, they're managed by the usual package manager, just like everything else.
- Show HN: I'm 17 and wrote this guide on how CPUs run programs
-
UTM for Developers
In this tutorial, we set up macOS and Windows virtual machines on UTM, a macOS application that provides a GUI wrapper for QEMU, a powerful open-source emulator and virtualizer. UTM allows you to easily manage and run virtual machines without memorizing complex commands. It also has special handling for macOS, making it simpler to install compared to other virtual machine software.
-
Replace Docker Desktop with Podman in OSX
On Mac, each Podman machine is backed by a QEMU based virtual machine. Once installed, the podman command can be run directly from the Unix shell in Terminal, where it remotely communicates with the podman service running in the Machine VM.
-
VGA & RISCV: How do initialize vga in qemu-system-riscv64 ?
QEMU's "VGA" device is a typical PCI VGA adapter with Bochs SVGA extensions. First enumerate PCI so you can figure out how to talk to the device's I/O, then follow the Bochs SVGA specifications to write a driver. There's also some information on the wiki, although it seems to make a few x86-specific assumptions.
The links I gave you explain how to interact with it. This page explains how the Bochs SVGA registers are mapped in PCI devices. This page explains what the Bochs SVGA registers do. This page gives examples for how to use a Bochs SVGA device.
UTM
-
UTM – Virtual Machines for iOS and macOS
> Has anyone found a reasonably painless way to migrate their disk images from Parallels to UTM?
These instructions may do the trick: https://github.com/utmapp/UTM/issues/4927#issuecomment-16294...
- Giving up the iPad-only travel dream
-
Exploring Windows XP on macOS ARM64
Researching a little showed that this is basically what can be expected running x86 emulation and the systems will just be wonky and slow, although it was running flawlessly, just slow.
There seem to be ways to use Rosetta2 inside a VM [0] to then translate binaries but I found no official support or documentation (using UTM+QEMU that was), this would be such a cool feature, at least there are discussions about it [1,2]
- [0] https://mybyways.com/blog/using-rosetta-in-a-utm-linux-vm-wi...
-
UTM for Developers
UTM makes it easy to set up and manage macOS and Windows virtual machines. This can be especially useful for developers such as Tauri contributors who need to test their applications across multiple platforms, or for those looking to experiment with different operating systems without affecting their primary system.
- Lima: A nice way to run Linux VMs on Mac
-
Best option for running older, non-intense games (Win and 32-bit)
Maybe works with this: https://github.com/utmapp/UTM
-
Linux Distrustful on iPad?
Yes. See UTM. iOS 11+, iPad support, no jailbreak required.
-
Apple just lost its lawsuit trying to ban iOS virtual machines
There’s UTM, you’ll have to side load it though
What are some alternatives?
macos-virtualbox - Push-button installer of macOS Catalina, Mojave, and High Sierra guests in Virtualbox on x86 CPUs for Windows, Linux, and macOS
lima - Linux virtual machines, with a focus on running containers
ish - Linux shell for iOS
TermuxArch - Experience the pleasure of the Linux command prompt in Android, Chromebook, Fire OS and Windows on smartphone, smartTV, tablet and wearable https://termuxarch.github.io/TermuxArch/
Unicorn Engine - Unicorn CPU emulator framework (ARM, AArch64, M68K, Mips, Sparc, PowerPC, RiscV, S390x, TriCore, X86)
Code-Server - VS Code in the browser
terraform-provider-libvirt - Terraform provider to provision infrastructure with Linux's KVM using libvirt
PojavLauncher - A Minecraft: Java Edition Launcher for Android and iOS based on Boardwalk. This repository contains source code for Android platform.
iOS-OTA-Downgrader - A multi-purpose script to save blobs, restore, and jailbreak supported legacy iOS devices [Moved to: https://github.com/LukeZGD/Legacy-iOS-Kit]
vftool - A simple macOS Virtualisation.framework wrapper
Vagrant - Vagrant is a tool for building and distributing development environments.
Pojav launcher - A Minecraft: Java Edition Launcher for Android and iOS based on Boardwalk. This repository contains source code for iOS/iPadOS platform.