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f05cb84ed1
This patch adds a connector that allows gem5 to be used as a component in SST (Structural Simulation Toolkit, sst-simulator.org). At a high level, this allows memory traffic to pass between the two simulators. SST Links are roughly analogous to gem5 Ports, although Links do not have a notion of master and slave. This distinction is important to gem5, so when connecting a gem5 CPU to an SST cache, an ExternalSlave must be used, and similarly when connecting the memory side of SST cache to a gem5 port (for memory <-> I/O), an ExternalMaster must be used. These connectors handle the administrative aspects of gem5 (initialization, simulation, shutdown) as well as translating SST's MemEvents into gem5 Packets and vice-versa. |
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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/Introduction, and for more information about building the simulator and getting started please see http://www.gem5.org/Documentation and http://www.gem5.org/Tutorials. To build gem5, you will need the following software: g++ or clang, Python (gem5 links in the Python interpreter), SCons, SWIG, zlib, m4, and lastly protobuf if you want trace capture and playback support. Please see http://www.gem5.org/Dependencies for more details concerning the minimum versions of the aforementioned tools. Once you have all dependencies resolved, type 'scons build/<ARCH>/gem5.opt' where ARCH is one of ALPHA, ARM, NULL, MIPS, POWER, SPARC, or X86. This will build an optimized version of the gem5 binary (gem5.opt) for the the specified architecture. See http://www.gem5.org/Build_System for more details and options. With the simulator built, have a look at http://www.gem5.org/Running_gem5 for more information on how to use gem5. The basic source release includes these subdirectories: - configs: example simulation configuration scripts - ext: less-common external packages needed to build gem5 - 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 will need compiled system firmware (console and PALcode for Alpha), kernel binaries and one or more disk images. Please see the gem5 download page for these items at http://www.gem5.org/Download If you have questions, please send mail to gem5-users@gem5.org Enjoy using gem5 and please share your modifications and extensions.