Hi Pete,
X86_FS and X86_SE is now simply X86 (and full-system or syscall-emulation is
decided based on how you run it). When you say network I assume you mean
Ethernet, as in something connecting two systems? If so, there is no need to
use Ruby. I don’t know about X86, but it most certainly works for Alpha and ARM.
There are Ethernet cards as part of gem5, and you have at least one regression
that shows how it is used. Note that there is currently no Ethernet switch
model in gem5, so typically you end up with one “driver system” that is
generating the load, and one “test system” that is the actual configuration you
are evaluating. See e.g. config/fs.py for an example of this setup.
Andreas
From: Pete Stevenson <[email protected]<mailto:[email protected]>>
Reply-To: gem5 users mailing list
<[email protected]<mailto:[email protected]>>
Date: Friday, 25 April 2014 05:55
To: "[email protected]<mailto:[email protected]>"
<[email protected]<mailto:[email protected]>>
Subject: [gem5-users] x86 full system simulation with networked (server)
applications
Hi All -
I am having trouble getting the x86 simulated full system to connect to the
network. I have been trying for a few days now to get this to work, and I have
scoured the message lists, blog posts, FAQs, tutorials, etc. The most useful
document I have found is this:
https://www.mail-archive.com/[email protected]/msg00071.html
I think it would be useful to the community if there were a guide to starting
up an x86 multi-core full system simulation with gem5.
Some more specific questions follow...
Regarding simulated architecture: there is no longer an "X86_FS" config, so
which config should I use? (is it X86_MESI_CMP_directory?)
Regarding the network, or lack thereof: I compiled using the mesi/cmp config
mentioned above, obtained files as referred to by the message above, namely the
uncompressed linux kernel, x86_64-vmlinux-2.6.22.9.smp (very old!!), and the
files linux-bigswap2.img, and x86root.img. After starting the sim and
connection in by telnet or m5term, I cannot ping anything and other tools (i.e.
ifconfig, etc) don't work because there is nothing in /proc. The meta question
being, what else do I need to do... how do I get to full system sim + network +
ability to use wget, apt-get or yum, etc.
Regarding disk images: I have also tried making my own disk image, but after
reading several blog posts and message board replies, this has not proved very
fruitful (yet). Perhaps this is the right path, but I'd like some indication
that it is (i.e. before investing time in this further).
Regarding feasibility: is full system + server apps + network even possible?
If yes, then I am willing to invest my time here, but of course it would be
good to know I am attempting something that is reasonably well supported.
For context, I plan to extend the work of my Ph.D. thesis, namely
investigations into deduplicated memory systems.
Thank you,
Pete Stevenson
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