QEMU
edk2
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QEMU | edk2 | |
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189 | 9 | |
9,236 | 5 | |
2.4% | - | |
10.0 | 0.0 | |
5 days ago | over 2 years ago | |
C | C | |
GNU General Public License v3.0 or later | 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.
QEMU
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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)
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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:
https://github.com/qemu/qemu/tree/master/target
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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
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State of x86-64 emulation of non-MacOS binaries
Um, in case you don't know, UTM (based on QEMU) is out for quite a while.
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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.
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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.
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Top 6 Virtual Machine Software in 2023
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).
- Show HN: I'm 17 and wrote this guide on how CPUs run programs
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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.
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Where to get a full version of QEMU?
I think you will need to build it yourself which you can do so by: Checkout the qemu repo and its submodules using the steps here: https://en.wikibooks.org/wiki/QEMU/Installing_QEMU in 'Building from Source' except for step 1 use the 'git clone https://github.com/qemu/qemu.git' Step 9 is where you enable the features, the build system does this by checking if you have the dev and or lib packages for the feature installed i.e. spice development packages will enable spice functionality, use the output from configure to help you with this then continue to step 10
edk2
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full passthrough of 12th gen Iris Xe seems working now
OVMF: edk2-stable202302 patched with ACRN patch (https://github.com/johnmave126/edk2/tree/intel-gop-patch, also see https://github.com/Kethen/edk2)
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Intel Iris Xe (Tiger Lake) passthrough (GVT-D)
Can't use Kethen/edk2 because my BIOS update has no IntelGopDriver (it doesn't even have IntelGopVbt but rather IntelGopVbt2)
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UEFI + Intel GVT-D + Display Output + HDR (Kethen/edk2) - Some tips and HDR questions
I wanted to share some tips on how to get this working. The repo below allows you to build an OVMF bios which allows a UEFI virtual machine to work with display output when using Intel integrated graphics: https://github.com/Kethen/edk2
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tiger lake Iris Xe single GPU passthrough
I used my laptop BIOS file from which I extracted the efi IntelGopDriver and vbt files (note that it seems to have two vbt in BIOS file), I used the same one I found in "/sys/kernel/debug/dri/0/i915_vbt", then I recompiled OVMF with this files using https://github.com/Kethen/edk2.
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iGPU passthrough on server - Is it possible?
For Haswell, IGD/GVT-d is possible. Use -machine pc (i440fx) + Kethen/edk2 + vbios_gvt_uefi.rom + x-igd-gms=2. You might be able to get -machine q35 + to work but without boot display. Look for a single GPU passthrough script.
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Full passthrough / GVT-d of 11th gen iGPU (Rocket Lake) to Windows 10 guest - logging my attempt.
Try Kethen/edk2.
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dual boot or virtual machine?
I was able to get laptop display output to work via i440fx (machine) + Kethen/edk2's OVMF (UEFI) + vbios_gvt_uefi.rom (romfile) + x-igd-gms=2 (2 * 32MB graphics memory). I think you might need to also use CPU host passthrough but I'm not sure.
- Is anyone had a success to passthrough Intel iGPU (Skylake) using q35 emulated chipset?
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Single GPU passthrough with intel
I got i440fx with boot display + OS display to work using Kethen's edk2 + vbios_gvt_uefi.rom
What are some alternatives?
UTM - Virtual machines for iOS and macOS
single-gpu-passthrough
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/
UEFITool - UEFI firmware image viewer and editor
Unicorn Engine - Unicorn CPU emulator framework (ARM, AArch64, M68K, Mips, Sparc, PowerPC, RiscV, S390x, TriCore, X86)
gpu-passthrough-tutorial
Vagrant - Vagrant is a tool for building and distributing development environments.
i915ovmfPkg - VBIOS for Intel GPU Passthrough
xemu - Original Xbox Emulator for Windows, macOS, and Linux (Active Development)
vendor-reset - Linux kernel vendor specific hardware reset module for sequences that are too complex/complicated to land in pci_quirks.c
em-dosbox - An Emscripten port of DOSBox
BIOSUtilities - Various BIOS Utilities for Modding/Research