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thoughts.rst

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Authors: Jason Lowe-Power

Some thoughts on this document

  • We want this document to be living.
    • We should have the source checked in somewhere (probably in a repo next to gem5).
    • We should force people to make updates when they break things.
    • We should have the source for the examples checked into the gem5 repo, and have tests that run them.
  • It may be a good idea to add example exercises at the end of each chapter. These could be things that are good for a classroom or just good things to try out.

An outline:

  1. Part I: Getting started
    Done-ish
  2. Developing with gem5
    1. Creating a new SimObject
    2. Debugging support in gem5
    3. Simple event-driven model
    4. Adding parameters to SimObjects
    5. Creating a new MemObject with master/slave ports
    6. A more complex SimObject: Simple Uniprocessor cache
    7. Contributing back to gem5
      1. Style guidelines
      2. Mercurial queues
      3. Reviewboard
    8. Running tests
  3. Full system simulation
    1. Introduction
    2. Simple FS config file
    3. Building a kernel for gem5
    4. Building a disk image for gem5
    5. ARM simulation
    6. More on X86 simulation
  4. Advanced gem5 usage
    1. Checkpoint creation and restoring
    2. ISA language
    3. Using m5ops
    4. Using traces
  5. An overview of common SimObjects
    1. CPUs
      1. CPU models
      2. Dynamically switching CPUs
    2. Classic memory system
      1. Random note: All controllers that issue coherent requests are required to have a cache attached to them. For instance, you have to have a cache on the IOBus or else there are weird errors.
    3. System
  6. Using Ruby cache coherence model
    1. Overview of Ruby
    2. Ruby's cache coherence protocols
    3. Ruby's network topologies
    4. Writing a new protocol
    5. Debugging a protocol
    6. Extending the SLICC language
  7. External projects and gem5
    1. Power models
    2. GPU models
    3. External simulation infrastructure
.. todo::

    Add information about address ranges and interleaved address ranges.

Todo list

.. todolist::