/****************************************************************************** * xc_cpu_hotplug.c - Libxc API for Xen Physical CPU hotplug Management * * Copyright (c) 2008, Shan Haitao * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; * version 2.1 of the License. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA * */ #include "xc_private.h" int xc_cpu_online(xc_interface *xch, int cpu) { DECLARE_SYSCTL; int ret; sysctl.cmd = XEN_SYSCTL_cpu_hotplug; sysctl.u.cpu_hotplug.cpu = cpu; sysctl.u.cpu_hotplug.op = XEN_SYSCTL_CPU_HOTPLUG_ONLINE; ret = xc_sysctl(xch, &sysctl); return ret; } int xc_cpu_offline(xc_interface *xch, int cpu) { DECLARE_SYSCTL; int ret; sysctl.cmd = XEN_SYSCTL_cpu_hotplug; sysctl.u.cpu_hotplug.cpu = cpu; sysctl.u.cpu_hotplug.op = XEN_SYSCTL_CPU_HOTPLUG_OFFLINE; ret = xc_sysctl(xch, &sysctl); return ret; }