Hey,
Sorry for jumping in midway but I have used a Vexpress machine type
for Gem5 but only the EMM version. I have placed a copy of the kernel
(3.2) I used here:
http://www.eecs.umich.edu/mevbench/downloads.html
The only issue I had was in multicore simulations it would not restore
from checkpoints without getting an error about non cacheable loads.
Single core I had no problems.
Hope this helps.
Thanks,
Jason
Quoting Andrew Cebulski <[email protected]>:
I haven't used VExpress_ELT before, however, I'm testing it out now with
the pre-compiled kernel provided by gem5. Have you tried that in order to
rule out its being a kernel issue? I've rarely seen any chat on the mailing
lists regarding the VExpress machine types, so I expect they haven't been
debugged/tested much other than by the developers.
-Andrew
On Thu, Apr 12, 2012 at 1:17 PM, Kiyeon Lee <[email protected]> wrote:
Hello, everyone.
I am trying to run a full-system simulation using the ARM "VExpress_ELT"
platform modeled in gem5. I am using the latest source codes from the
gem5 repository.
I compiled linux kernel 2.6.38 to target the ARM Versatile Express
platform.
I used the corresponding config file and the linux kernel source code
patch from the arm website (www.arm.com) to compile the linux kernel.
I am using the "fs.py" script file as it is, except that I changed the
machine type to VExpress_ELT and changed the main memory size to 1GB. I
am also using the linux kernel that I compiled instead of using the
pre-compiled kernel provided by the gem5 website.
However, it seems like the simulation is not proceeding after gem5 loads
the kernel.
I am wondering whether the problem is caused by my linux kernel or by gem5.
My question is should I somehow change the config file and recompile the
linux kernel or should I debug gem5?
Are the two ARM Versatile Express platforms (VExpress_ELT and
VExpress_EMM) currently stable to use for full-system simulation?
Any hints/comments will be greatly appreciated.
Thanks in advance.
Kiyeon
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