Hi All, Please can you tell me how to verify that the Linux has been booted with the actual cache configuration passed in gem5? I have run GEM3 with L1, L2 and L3 having following sizes. I added L3 bus myself.
./build/X86/gem5.opt configs/example/fs.py --kernel=x86_64-vmlinux-2.6.22.9.smp --cpu-type=detailed --caches --num-l2caches=1 --num-l3caches=1 --l1d_size=32kB --l1d_assoc=8 --l1i_size=32kB --l1i_assoc=8 --l2cache --l2_size=256kB --l2_assoc=8 --l3_assoc=16 --l3_size=8192kB --cacheline_size=64 --l3cache But when Ubuntu (Lucid) boots up then I don't see any cache configuration through 'lscpu' $lscpu Architecture: x86_64 CPU op-mode(s): 32-bit, 64-bit CPU(s): 1 Thread(s) per core: 1 Core(s) per socket: 1 CPU socket(s): 1 Vendor ID: M5 Simulator CPU family: 15 Model: 37 Stepping: 1 CPU MHz: 2000.010 Moreover, 'ls /sys/devices/system/cpu/cpu0' only shows 'topology' dir and no cache directory. Also during the system bootup, the Linux shows wrong cache configuration for both L1 and L2: : "Mount-cache hash table entries: 256 CPU: L1 I Cache: 64K (64 bytes/line), D cache 64K (64 bytes/line) CPU: L2 Cache: 1024K (64 bytes/line)" Thanks.
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