Hi, A recent OpenStack nova commit make use of virNodeGetCPUMap to get the list of online cpu of a host. But this API is not implemented for the libvirt xen driver. The commit: Add handling for offlined CPUs to the nova libvirt driver. https://review.openstack.org/gitweb?p=openstack/nova.git;a=commitdiff;h=0696a5cd5f0fdc08951a074961bb8ce0c3310086 Is there a need to use this under Xen? (Is it possible to have offline CPU?). What libxl API those provide this information, if it exist? I found libxl_get_online_cpus() but that not enough. They want a bitmap. Thanks, -- Anthony PERARD -- libvir-list mailing list libvir-list@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/libvir-list