On 8/29/23 21:22, Mario Marietto wrote: > Hello. > > The error that I'm not able to fix is the following one : > > > root@chromarietto:~# virsh domcapabilities --machine virt > --emulatorbin /usr/local/bin/qemu-system-arm > > 2023-08-29 10:17:59.110+0000: 1763: error : virHostCPUGetKVMMaxVCPUs:1228 : > KVM is not supported on this platform: Function not implemented ; > error: failed to get emulator capabilities > error: KVM is not supported on this platform: Function not implemented > > This is the source code that reports that error: https://gitlab.com/libvirt/libvirt/-/blob/master/src/util/virhostcpu.c?ref_type=heads#L1228 Long story short, you are missing kvm.h header. On my system it's located under: /usr/include/linux/kvm.h and provided by linux-headers package. And if you think about it (and take a look at the other implementation of the function), it kind of makes sense - libvirt opens /dev/kvm and calls series of ioctl()-s to learn about KVM capabilities. Libvirt shouldn't hard code values but rather use the ones provided by kernel header files. Happy hacking! Michal
