3238822e9e
The BaseCPUProcessor is processor containing BaseCPUCores. This gives gem5 stdlib users a way to create processors containing BaseCPU SimObjects. While SimpleProcessor does this by-proxy (the user simply specifies the desires CPUType and ISA and the correct BaseCPU instantiation is chosen), this new Processor allows a more raw passing of BaseCPU objects. The SimpleProcessor now inherrits from this BaseCPUProcessor to avoid duplcation of functionality. A refactor to achieve this was moving the setting of the board's memory mode from the SimpleProcessor's "incorporate_processor" function to the BaseCPUProcessor's then altering it to determine MemMode based on BaseCPU subclass rather than the CPUType. The tests/gem5/configs/simple_binary_run.py test script has been extended to create an stdlib run with a BaseCPUProcessor instead of the SimpleProcessor and tests have been included to ensure the BaseCPUProcessor functions as intended. Multiple cores comprising of different BaseCPU types has not been tested and is not officially supported as of this commit. Change-Id: I229943ab98ece39646f1b4feb909250bb5c61772 Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/62353 Tested-by: kokoro <noreply+kokoro@google.com> Maintainer: Jason Lowe-Power <power.jg@gmail.com> Reviewed-by: Jason Lowe-Power <power.jg@gmail.com>
This is the gem5 simulator. The main website can be found at http://www.gem5.org A good starting point is http://www.gem5.org/about, and for more information about building the simulator and getting started please see http://www.gem5.org/documentation and http://www.gem5.org/documentation/learning_gem5/introduction. To build gem5, you will need the following software: g++ or clang, Python (gem5 links in the Python interpreter), SCons, zlib, m4, and lastly protobuf if you want trace capture and playback support. Please see http://www.gem5.org/documentation/general_docs/building for more details concerning the minimum versions of these tools. Once you have all dependencies resolved, type 'scons build/<CONFIG>/gem5.opt' where CONFIG is one of the options in build_opts like ARM, NULL, MIPS, POWER, SPARC, X86, Garnet_standalone, etc. This will build an optimized version of the gem5 binary (gem5.opt) with the the specified configuration. See http://www.gem5.org/documentation/general_docs/building for more details and options. The main source tree includes these subdirectories: - build_opts: pre-made default configurations for gem5 - build_tools: tools used internally by gem5's build process. - configs: example simulation configuration scripts - ext: less-common external packages needed to build gem5 - include: include files for use in other programs - site_scons: modular components of the build system - src: source code of the gem5 simulator - system: source for some optional system software for simulated systems - tests: regression tests - util: useful utility programs and files To run full-system simulations, you may need compiled system firmware, kernel binaries and one or more disk images, depending on gem5's configuration and what type of workload you're trying to run. Many of those resources can be downloaded from http://resources.gem5.org, and/or from the git repository here: https://gem5.googlesource.com/public/gem5-resources/ If you have questions, please send mail to gem5-users@gem5.org Enjoy using gem5 and please share your modifications and extensions.