Hmm, I don't immediately know what's going wrong. I would extend the panic on line 559 of vm.cc to also print the error code number so you can look it up. I believe you can use `errno` like normal after calling `ioctl`. For instance, you could add `strerror(errno)` to the panic.
Cheers, Jason On Mon, May 10, 2021 at 12:49 AM Liyichao via gem5-users < gem5-users@gem5.org> wrote: > Hi All: > > I use KVM CPU in se mode on X86 arch, but it showed a panic “KVM: > Failed to create virtual CPU”. > > > > > > My host is X86 server of Intel 6148 and it can support kvm: > > lsmod |grep kvm > > kvm_intel 172032 0 > > kvm 548864 1 kvm_intel > > irqbypass 16384 1 kvm > > > > ll /dev/kvm > > crwxrwxrwx 1 root root 10, 232 Feb 16 20:40 /dev/kvm > > > > My GEM5 version is master(v21.0.0.0), > ea7d012c00e5555857ef999b88a8ec2bde801a1f > > > > > > ./build/X86/gem5.opt configs/example/se.py --cpu-type=X86KvmCPU > --cpu-clock=2.6GHz --sys-clock=2.6GHz --caches --l1d_size=64kB > --l1i_size=64kB --l2cache --l2_size=32MB --mem-size=32GB --num-cpus=1 -I > 5000 -c "./test" > > gem5 Simulator System. http://gem5.org > > gem5 is copyrighted software; use the --copyright option for details. > > > > gem5 version 21.0.0.0 > > gem5 compiled May 10 2021 03:39:51 > > gem5 started May 10 2021 03:57:48 > > gem5 executing on ubuntu, pid 112188 > > command line: ./build/X86/gem5.opt configs/example/se.py > --cpu-type=X86KvmCPU --cpu-clock=2.6GHz --sys-clock=2.6GHz --caches > --l1d_size=64kB --l1i_size=64kB --l2cache --l2_size=32MB --mem-size=32GB > --num-cpus=1 -I 5000 -c ./test > > > > warn: membus.slave is deprecated. `slave` is now called `cpu_side_ports` > > warn: tol2bus.master is deprecated. `master` is now called `mem_side_ports` > > warn: membus.slave is deprecated. `slave` is now called `cpu_side_ports` > > warn: tol2bus.slave is deprecated. `slave` is now called `cpu_side_ports` > > warn: tol2bus.slave is deprecated. `slave` is now called `cpu_side_ports` > > warn: tol2bus.slave is deprecated. `slave` is now called `cpu_side_ports` > > warn: tol2bus.slave is deprecated. `slave` is now called `cpu_side_ports` > > warn: membus.master is deprecated. `master` is now called `mem_side_ports` > > warn: membus.master is deprecated. `master` is now called `mem_side_ports` > > warn: membus.slave is deprecated. `slave` is now called `cpu_side_ports` > > Global frequency set at 1000000000000 ticks per second > > warn: DRAM device capacity (8192 Mbytes) does not match the address range > assigned (32768 Mbytes) > > 0: system.remote_gdb: listening for remote gdb on port 7000 > > **** REAL SIMULATION **** > > panic: KVM: Failed to create virtual CPU > _______________________________________________ > gem5-users mailing list -- gem5-users@gem5.org > To unsubscribe send an email to gem5-users-le...@gem5.org > %(web_page_url)slistinfo%(cgiext)s/%(_internal_name)s
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