Welcome to the gem5 documentation. We've worked hard to add and organize everything in a more reasonable format, however we still haven't got to everything. All the documentation is a wiki, so we encourage you to add and edit sections as you find omissions and bugs.
Old Documentation: We have some old documentation and have been trying to move everything to the new format, but we haven't quite succeeded yet. If you don't find the answer you're looking for here, you might want to check OldDocumentation
- Introduction - A quick introduction to gem5.
- Source Code - Information about the source code itself.
- External Dependencies - Things you'll need that aren't part of gem5 itself.
- Build System - How to run or modify gem5's build system.
- Running M5 - Starting a simulation from the command line.
- Regression Tests - Running the regression tests.
- SimObjects - What SimObjects are and how they work.
- Configuration Scripts - This and the next section need to be merged.
- Simulation Scripts Explained
- Summary gem5 Capabilities
- Architecture Support -- What architectures are supported by gem5 and what features of them are implemented
- Compiling - How to compile workloads to run within gem5.
- Multiprogrammed workloads - Multiprogrammed workloads in SE mode.
- Multithreaded workloads - Multithreaded workloads in SE mode.
- Benchmark suites
- Disk images - Setting up a disk image.
- Linux kernel - Preparing a Linux kernel for use in gem5.
- m5ops - How to talk to the simulator from within a simulated workload.
- Functional Testers
- Coding Style
- Tools and Contributing
- Source Code Documentation
- Commit Access
- General Memory System - Shared infrastructure between the Classic and Ruby models
- Classic Memory System - Description of our easily configurable, bus-based memory system
- Ruby - Description of our detailed and flexible memory system. Lots of information here.