here is an alternate automated setup that I have tested: https://github.com/cirosantilli/linux-kernel-module-cheat/tree/50ac89b779363774325c81157ec8b9a6bdb50a2f#gem5-buildroot-setup
On Thu, Dec 5, 2019 at 4:05 AM 闫亮 <yanliang...@ict.ac.cn> wrote: > > Hi all, > > I am trying to use full_system simulation in gem5 and following the steps in > a Blog(http://www.lowepower.com/jason/setting-up-gem5-full-system.html).I do > all the same things as the author for the first 3 steps. I stucked at the 4th > step actually. I checked the website as well but there is not so good > explanation honestly. What I do in step 4 is : download linux kernel 4.8.13 > and the config file offered by the Blog author. Then I copy the config file > into the directory of linux kernel 4.8.13 --> make oldconfig -->make. Finally > i got the compiled kernel i want. > > But when i run gem5 full system simulation using the disk and kernel just > made: ./build/X86/gem5.opt configs/example/fs.py > --disk-image=/home/yl/disk_resize/ubuntu-test.img > --kernel=/home/yl/disk_resize/kernel/linux-4.8.13/vmlinux > --cpu-type=AtomicSimpleCPU -n 1 --mem-size=2GB --sys-clock=4GHz . I got the > fault bellow when booting the system: > > > [ 0.580744] Kernel Offset: disabled > [ 0.580753] ---[ end Kernel panic - not syncing: VFS: Unable to mount root > fs on unknown-block(0,0) > > > I am sure that i didin't got the authors' meaning for step4 showing below: > > #Step 4: Build a kernel > > #Next, you need to build a Linux kernel. Unfortunately, the out-of-the-box > Ubuntu kernel doesn't play well with gem5. See the error below. > > #First, you need to download latest kernel from kernel.org. Then, to build > the kernel, you are going to want to start with a known-good config file.The > config file that I'm used for kernel version 4.8.13 can be #downloaded here. > Then, you need to move the good config to .config and the run make oldconfig > which starts the kernel configuration process with an existing config file. > > #At this point you can select any extra drivers you want to build into the > kernel. Note: You cannot use any kernel modules unless you are planning on > copying the modules onto the guest disk at the correct #location. All drivers > must be built into the kernel binary. > > #It may be possible to use modules by compiling the binary on the guest disk > via qemu, but I have not tested this. > > #Finally, you need to build the kernel. > > Thank you for reading my question, Please give me some advice if possible. > > with best regards > Liang > > > _______________________________________________ > gem5-users mailing list > gem5-users@gem5.org > http://m5sim.org/cgi-bin/mailman/listinfo/gem5-users _______________________________________________ gem5-users mailing list gem5-users@gem5.org http://m5sim.org/cgi-bin/mailman/listinfo/gem5-users
