sanchayanmaity/gem5 - Sanchayan Maity's repositories

Go to file

Geoffrey Blake c4a8e5c36c arm: Handle functional TLB walks properly The table walker code currently accounts for two types of walks, Atomic and Timing, and treats them differently. Atomic walks keep a single instance of WalkerState around for all walks to use in currState. Timing mode keeps a queue of in-flight WalkerStates and maintains currState as NULL between walks. If a functional walk is done during Timing mode, it is treated as an atomic walk and either creates a persistent WalkerState if in between Timing walks, or stomps an existing currState for an in-progress Timing walk. This patch distinguishes functional walks as being able to exist at any time and sets up a temporary WalkerState for its exclusive use and then cleans up when finished, leaving any in progress Atomic or Timing walks undisturbed.		2014-03-07 15:56:23 -05:00
build_opts	ruby: rename MESI_CMP_directory to MESI_Two_Level	2014-01-04 00:03:33 -06:00
configs	ruby: correct errors in changeset 4eec7bdde5b0	2014-02-24 20:50:05 -06:00
ext	mem: Add a wrapped DRAMSim2 memory controller	2014-02-18 05:50:53 -05:00
src	arm: Handle functional TLB walks properly	2014-03-07 15:56:23 -05:00
system	arm: Add support for ARMv8 (AArch64 & AArch32)	2014-01-24 15:29:34 -06:00
tests	stats: updates due to c0db268f811b	2014-02-24 20:50:06 -06:00
util	mem: Edit proto Packet and enhance the python script	2014-03-07 15:56:23 -05:00
.hgignore	mem: Add a wrapped DRAMSim2 memory controller	2014-02-18 05:50:53 -05:00
.hgtags	Added tag stable_2014_02_15 to the changeset 459491344fcf	2014-02-15 12:44:09 -06:00
COPYING	copyright: Add code for finding all copyright blocks and create a COPYING file	2011-06-02 17:36:07 -07:00
LICENSE	copyright: Add code for finding all copyright blocks and create a COPYING file	2011-06-02 17:36:07 -07:00
README	gem5: Update the README file to be a bit less out-of-date.	2012-09-25 11:49:40 -05:00
SConstruct	scons: Fix clang version identification for OSX	2014-03-07 15:56:23 -05:00

README

This is the gem5 simulator.

For detailed information about building the simulator and getting
started please refer to:
* The main website:     http://www.gem5.org
* Documentation wiki:   http://www.gem5.org/Documentation 
* Doxygen generated:    http://www.gem5.org/docs
* Tutorials:            http://www.gem5.org/Tutorials


Specific pages of interest are:
http://www.gem5.org/Introduction
http://www.gem5.org/Build_System
http://www.gem5.org/Dependencies
http://www.gem5.org/Running_gem5

Short version:
External tools and required versions

To build gem5, you will need the following software:
g++ version 4.3 or newer.
Python, version 2.4 - 2.7 (we don't support Python 3.X). gem5 links in the 
    Python interpreter, so you need the Python header files and shared 
    library (e.g., /usr/lib/libpython2.4.so) in addition to the interpreter
    executable. These may or may not be installed by default. For example,
    on Debian/Ubuntu, you need the "python-dev" package in addition to the
    "python" package. If you need a newer or different Python installation
     but can't or don't want to upgrade the default Python on your system,
     see http://www.gem5.org/Using_a_non-default_Python_installation
SCons, version 0.98.1 or newer. SCons is a powerful replacement for make. 
    If you don't have administrator privileges on your machine, you can use the
    "scons-local" package to install scons in your m5 directory, or install SCons
    in your home directory using the '--prefix=' option.  
SWIG, version 1.3.34 or newer
zlib, any recent version. For Debian/Ubuntu, you will need the "zlib-dev" or
    "zlib1g-dev" package to get the zlib.h header file as well as the library
    itself.
m4, the macro processor.


4. In this directory, type 'scons build/<ARCH>/gem5.opt' where ARCH is one
of ALPHA, ARM, MIPS, POWER, SPARC, or X86. This will build an optimized version
of the gem5 binary (gem5.opt) for the the specified architecture.

If you have questions, please send mail to gem5-users@gem5.org

WHAT'S INCLUDED (AND NOT)
-------------------------

The basic source release includes these subdirectories:
 - gem5:
   - 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