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[Gem5] Full system Simulation with Official Kernel

I follow the youtube provided by Gem5 to get the inspiration.
(http://gem5.org/Running_gem5#Full_System_.28FS.29_Mode)

I download the file here:
http://www.gem5.org/dist/current/arm/
with
http://www.gem5.org/dist/current/arm/aarch-system-20170616.tar.xz

Then Set up M5_PATH as the place I extract the files:
"/home/khchen/full_system_images/"

If the setting is correct, assigning the disk-image will finish the rest of setting for dtb and kernel specifications.

So far I can only use this img (aarch32-ubuntu-natty-headless.img) as my disk-image to run up to the login interface of the ubuntu:

build/ARM/gem5.opt configs/example/fs.py --disk-image=/home/khchen/full_system_images/disks/aarch32-ubuntu-natty-headless.img

With the other imgs, for example like "aarch64-ubuntu-trusty-headless.img", I think the kernel and the dtb should be given manually, because it will automatically load something with aarch32 prefix which doesn't make sense:

info: kernel located at: /home/khchen/full_system_images/binaries/vmlinux.aarch32.ll_20131205.0-gem5


info: Loading DTB file: /home/khchen/full_system_images/binaries/vexpress.aarch32.ll_20131205.0-gem5.1cpu.dtb at address 0x88000000










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