Hi All, I am following the steps mentioned in the documentation to configure per-core dvfs. I am trying to simulate four cores by giving the following command
M5_PATH=$(pwd)/.. ./build/ARM/gem5.opt --debug-flags=DVFS,EnergyCtrl \ --debug-file=dfvs_debug.log configs/example/fs.py --cpu-type=AtomicSimpleCPU \ *-n 4 *--machine-type=VExpress_EMM --kernel=../linux-linaro-tracking-gem5/vmlinux \ --dtb-filename=../linux-linaro-tracking-gem5/arch/arm/boot/dts/\ *vexpress-v2p-ca15-tc1-gem5_dvfs_per_core_4cpus.dts* \ --disk-image=../disks/arm-ubuntu-natty-headless.img \ --cpu-clock=\['1 GHz','750 MHz','500 MHz'\] I am using the above dtb to configure per core dvfs and start the simulation. However, when I check /sys/devices/system/cpu/cpu<1,2,3>/online, all the cores are offline except core0. When I try to write '1' to 'online' file for any core, it throws the following error *CPU1: failed to boot: -38* *-bash: echo: write error: Function not implemented * Could you please help me here. Regards Rahul
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