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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
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* 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 MINCPUUNITS 8
#define CPUMASK_NBITS 4096
#define CPUMASK_NBYTES (CPUMASK_NBITS / (8 * sizeof(unsigned long)))
typedef struct {
unsigned long bits[CPUMASK_NBYTES];
} cpumask_t;
#define NODEMASK_NBITS 4096
#define NODEMASK_NBYTES (NODEMASK_NBITS / (8 * sizeof(unsigned long)))
typedef struct {
unsigned long bits[CPUMASK_NBYTES];
} nodemask_t;
/** 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 */
nodemask_t *nodemask; /**< CT's NUMA node affinity mask */
int cpumask_auto; /**< Auto-assign cpumask based on NUMA node 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_nodemask(envid_t veid, nodemask_t *mask);
int get_node_cpumask(nodemask_t *nodemask, cpumask_t *cpumask);
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);
#endif
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