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This is a slightly munged version of vtophys, but which returns faults like the normal translate functions if the address is malformed. It attempts to return an approximately correct fault if the translation isn't found, but since SPARC doesn't have hardware managed TLBs that has to be an approximation. translateFunctional also ignores permissions type checks (unless they're built into the "lookup" method?) in line with vtophys type semantics. The idea is that translateFunctional is used in conjunction with functional accesses, and those are intended to reach beyond normal barriers/boundaries to give unfettered access to the system for debugging or setup purposes. Change-Id: I000d9c31877b82043489792de037e7d664914fa9 Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/26404 Reviewed-by: Nikos Nikoleris <nikos.nikoleris@arm.com> Maintainer: Gabe Black <gabeblack@google.com> Tested-by: kokoro <noreply+kokoro@google.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, SWIG, 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 the aforementioned tools. Once you have all dependencies resolved, type 'scons build/<ARCH>/gem5.opt' where ARCH is one of 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/documentation/general_docs/building for more details and options. 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. If you have questions, please send mail to gem5-users@gem5.org Enjoy using gem5 and please share your modifications and extensions.