QEMU VS macOS-Simple-KVM

My most-wanted QEMU feature: https://github.com/qemu/qemu/commit/a2260983c6553

Using `gic-version=3` on macOS you can now use more than 8 cores on ARM chips.

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)

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:

https://github.com/qemu/qemu/tree/master/target

> 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

Um, in case you don't know, UTM (based on QEMU) is out for quite a while.

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.

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.

For all the users of the Linux platform, QEMU is the VM that you should go for. This software comes without any price tag and works as an emulator of various machines with utmost ease and completion; the software uses dynamic translations to emulate hardware peripherals and enhances its overall performance. If you are using QEMU as a virtualizer, then it will function exactly like the host system (provided you have the right set of hardware).

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.

I'm a 30 year linux veteran and windows free for over 22. I di d have a windows vm for some time because I have some music stuff that doesn't work with linux, like a nord keyboard and some guitar stuff.

But i burnt the vm with fire when I found https://github.com/foxlet/macOS-Simple-KVM

I've heard a lot of buzz for MacOS-Simple-KVM but I see there hasb't been an update in 3 years.

You could always get a regular PC laptop, install linux on it and run your macos/windows vms via https://github.com/foxlet/macOS-Simple-KVM qemu kvm, supports full hardware acceleration and should be able to do nested vms just fine, i run a macos vm on my desktop for work and a hardware accelerated windows vm for gaming

Then, i came across this tool https://github.com/foxlet/macOS-Simple-KVM. However, it seems like it's asking me to install a different package for QEMU. sudo apt-get install qemu-system qemu-utils python3 python3-pip. Thankfully, I was able to create a Mac VM with this tool.

His github project " https://github.com/foxlet/macOS-Simple-KVM "

git clone https://github.com/foxlet/macOS-Simple-KVM.git /home/Downloads

You can virtualize mac os, but I would call it easy

I did the Windows passthrough with some problems but I got it to work and then I attempted MacOS for fun and it went down hill from there. Following this guide https://github.com/kholia/OSX-KVM I installed it no problem without passthrough then realised my 3060ti wouldn't work so I installed an old RX580 laying around and decided to passthrough that, when I did it hung, tried blacklisting the AMD drivers on host, amongst other things and I couldn't get it to work. I then switched to this guide using clover https://github.com/foxlet/macOS-Simple-KVM as I heard that might work and nope it hung again.