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* Copyright (C) 2000-2008, Parallels, Inc. All rights reserved.
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* GNU General Public License for more details.
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
#ifndef _CPU_H_
#define _CPU_H_
#define MAXCPUUNITS 500000
#define CPUMASK_NBITS 1024
#define CPUMASK_NBYTES (CPUMASK_NBITS / (8 * sizeof(unsigned long)))
typedef struct {
unsigned long bits[CPUMASK_NBYTES];
} cpumask_t;
#define cpumask_bits(maskp) ((maskp)->bits)
/** Data structure for cpu parameters.
typedef struct cpu_param {
unsigned long *limit; /**< CPU usage for the CT, in per cent. */
unsigned long *weight;
unsigned long *units; /**< CPU weight for the CT, in units. */
unsigned long *vcpus; /**< number of CPUs available in the running CT */
cpumask_t *mask; /**< CT's CPU affinity mask */
} cpu_param;
/** Apply cpu parameters on running CT.
* @param h CT handler.
* @param veid CT ID.
* @param cpu cpu parameters.
* @return 0 on success.
int vps_set_cpu(vps_handler *h, envid_t veid, cpu_param *cpu);
int env_set_vcpus(envid_t veid, unsigned int vcpus);
int set_cpumask(envid_t veid, cpumask_t *mask);
int set_cpuunits(envid_t veid, unsigned int cpuunits);
int set_cpuweight(envid_t veid, unsigned int cpuweight);
int set_cpulimit(envid_t veid, unsigned int cpulimit);
/** Apply cpu parameters on Host system.
* @param cpu cpu parameters.
* @return 0 on success.
int hn_set_cpu(cpu_param *cpu);