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/******************************************************************************
* tools/xenmon/setmask.c
*
* Simple utility for getting/setting the event mask
*
* Copyright (C) 2005 by Hewlett-Packard, Palo Alto and Fort Collins
*
* Authors: Lucy Cherkasova, lucy.cherkasova.hp.com
* Rob Gardner, rob.gardner@hp.com
* Diwaker Gupta, diwaker.gupta@hp.com
* Date: August, 2005
*
* 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; under version 2 of the License.
*
* 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
*/
#include <stdlib.h>
#include <stdio.h>
#include <sys/types.h>
#include <fcntl.h>
#include <unistd.h>
#include <errno.h>
#include <getopt.h>
#include <xenctrl.h>
#include <xen/xen.h>
typedef struct { int counter; } atomic_t;
#include <xen/trace.h>
#define XENMON (TRC_SCHED_DOM_ADD | TRC_SCHED_DOM_REM | TRC_SCHED_SWITCH_INFPREV | TRC_SCHED_SWITCH_INFNEXT | TRC_SCHED_BLOCK | TRC_SCHED_SLEEP | TRC_SCHED_WAKE | TRC_MEM_PAGE_GRANT_TRANSFER)
int main(int argc, char * argv[])
{
struct xen_sysctl sysctl;
int ret;
xc_interface *xc_handle = xc_interface_open(0,0,0);
sysctl.cmd = XEN_SYSCTL_tbuf_op;
sysctl.interface_version = XEN_SYSCTL_INTERFACE_VERSION;
sysctl.u.tbuf_op.cmd = XEN_SYSCTL_TBUFOP_get_info;
ret = xc_sysctl(xc_handle, &sysctl);
if ( ret != 0 )
{
perror("Failure to get event mask from Xen");
exit(1);
}
else
{
printf("Current event mask: 0x%.8x\n", sysctl.u.tbuf_op.evt_mask);
}
sysctl.cmd = XEN_SYSCTL_tbuf_op;
sysctl.interface_version = XEN_SYSCTL_INTERFACE_VERSION;
sysctl.u.tbuf_op.cmd = XEN_SYSCTL_TBUFOP_set_evt_mask;
sysctl.u.tbuf_op.evt_mask = XENMON;
ret = xc_sysctl(xc_handle, &sysctl);
printf("Setting mask to 0x%.8x\n", sysctl.u.tbuf_op.evt_mask);
if ( ret != 0 )
{
perror("Failure to get scheduler ID from Xen");
exit(1);
}
sysctl.cmd = XEN_SYSCTL_tbuf_op;
sysctl.interface_version = XEN_SYSCTL_INTERFACE_VERSION;
sysctl.u.tbuf_op.cmd = XEN_SYSCTL_TBUFOP_get_info;
ret = xc_sysctl(xc_handle, &sysctl);
if ( ret != 0 )
{
perror("Failure to get event mask from Xen");
exit(1);
}
else
{
printf("Current event mask: 0x%.8x\n", sysctl.u.tbuf_op.evt_mask);
}
xc_interface_close(xc_handle);
return 0;
}
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