A fast usermode x86 and x86-64 emulator for Arm64 Linux
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Alyssa Rosenzweig 7b39e57e72 OpcodeDispatcher: defer overwritten store
this can save moves, as it's a bit easier to reason about the live ranges.

Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
2024-05-16 08:31:58 -04:00
.github CI: Drop use of obsolete ENABLE_X86_HOST_DEBUG setting 2024-04-15 18:31:50 +02:00
CI unittests: Add test thunk library 2023-09-18 16:53:35 +02:00
CMakeFiles CMake: Fix pkg version extraction 2023-07-13 16:01:14 -07:00
CPack CPack: Add an ldconfig trigger 2021-11-21 10:38:56 -08:00
Data Library Forwarding: Support Vulkan forwarding with guest-libX11 2024-05-02 18:06:54 +02:00
docs FEXCore: Get rid of DeferredSignalFaultAddress and use the InterruptFaultPage 2024-05-10 15:31:28 -07:00
External Fix exec path where file needs to be ignored 2024-05-13 11:41:44 +02:00
FEXCore OpcodeDispatcher: defer overwritten store 2024-05-16 08:31:58 -04:00
FEXHeaderUtils Whole-tree reformat 2024-04-12 16:26:02 +02:00
include Adds Config.h generated file 2021-03-23 19:12:18 -07:00
Scripts Fix exec path where file needs to be ignored 2024-05-13 11:41:44 +02:00
Source FEXCore: Get rid of DeferredSignalFaultAddress and use the InterruptFaultPage 2024-05-10 15:31:28 -07:00
ThunkLibs Library Forwarding: Drop support for libX11 2024-05-02 20:02:02 +02:00
unittests InstcountCI: Update 2024-05-10 15:34:13 -07:00
.clang-format Clang Format file and reformat target 2024-04-16 13:48:44 +02:00
.clang-format-ignore Fix exec path where file needs to be ignored 2024-05-13 11:41:44 +02:00
.git-blame-ignore-revs Add second reformat to git blame ignore file 2024-04-15 15:23:49 +02:00
.gitignore Add pidfd_open syscall helpers 2022-07-15 13:44:07 +08:00
.gitmodules Update xxhash to v0.8.2 2024-02-26 23:57:25 -08:00
CMakeLists.txt CMake: Remove obsolete Catch2 setting 2024-05-03 15:25:42 +02:00
CMakeSettings.json EnvironmentLoader, clean merge 2020-04-24 19:25:57 -04:00
CODE_OF_CONDUCT.md New domain. 2022-09-02 10:43:07 -07:00
Dockerfile Improvements to the Dockerfile 2024-01-19 02:27:03 -03:00
LICENSE Initial Commit 2020-03-06 09:08:13 +02:00
Readme.md Readme: Remove misleading text about x86 hosts being supported 2024-05-02 20:38:13 -07:00
toolchain_mingw.cmake CMake: Add mingw toolchain file 2023-08-18 04:31:41 -07:00
toolchain_x86_32.cmake Thunks: Add support for building with clang 2022-10-09 23:07:30 -07:00
toolchain_x86_64.cmake Thunks: Add support for building with clang 2022-10-09 23:07:30 -07:00

中文

FEX - Fast x86 emulation frontend

FEX allows you to run x86 and x86-64 binaries on an AArch64 host, similar to qemu-user and box86. It has native support for a rootfs overlay, so you don't need to chroot, as well as some thunklibs so it can forward things like GL to the host. FEX presents a Linux 5.0+ interface to the guest, and supports only AArch64 as a host. FEX is very much work in progress, so expect things to change.

Quick start guide

For Ubuntu 20.04, 21.04, 21.10, 22.04

Execute the following command in the terminal to install FEX through a PPA.

curl --silent https://raw.githubusercontent.com/FEX-Emu/FEX/main/Scripts/InstallFEX.py --output /tmp/InstallFEX.py && python3 /tmp/InstallFEX.py && rm /tmp/InstallFEX.py

This command will walk you through installing FEX through a PPA, and downloading a RootFS for use with FEX.

Ubuntu PPA is updated with our monthly releases.

For everyone else

Please see Building FEX.

Getting Started

FEX has been tested to build and run on ARMv8.0+ hardware. ARMv7 hardware will not work. Expected operating system usage is Linux. FEX has been tested with Ubuntu 20.04, 20.10, and 21.04. Also Arch Linux.

On AArch64 hosts the user MUST have an x86-64 RootFS Creating a RootFS.

Navigating the Source

See the Source Outline for more information.

Building FEX

Follow the guide on the official FEX-Emu Wiki here.

RootFS generation

AArch64 hosts require a rootfs for running applications. Follow the guide on the wiki page for seeing how to set up the rootfs from scratch https://wiki.fex-emu.com/index.php/Development:Setting_up_RootFS

FEX diagram