Hello, I am trying to run a 16 core RISCV full system simulation with the following command:
/build/RISCV/gem5.opt configs/example/riscv/fs_linux.py --kernel riscv-bootloader-vmlinux-5.10 --disk-image riscv_disk.img --caches --mem-size=256MB --mem-type=DDR4_2400_8x8 --cpu-type=AtomicSimpleCPU -n 16 The kernel and the bootloader are from the gem5-resources for Ubuntu riscv. However the simulation hangs after the line Starting simulation... In another setup, I chose to build the kernel with NR_CPUS=64 and use that. It successfully boots and finishes the script but with the below error - In the system.platform.terminal I can see the kernel fails to bring up more than 8 CPUs: [ 0.001142] smp: Bringing up secondary CPUs ... [ 1.024519] CPU8: failed to come online [ 2.049026] CPU9: failed to come online [ 3.073533] CPU10: failed to come online [ 4.098040] CPU11: failed to come online [ 5.122547] CPU12: failed to come online [ 6.147054] CPU13: failed to come online [ 7.171561] CPU14: failed to come online [ 8.196068] CPU15: failed to come online [ 8.196086] smp: Brought up 1 node, 8 CPUs I believe the issue is with the PLIC implementation of RISCV. Please let me know your thoughts on this. Thanks Nitish
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