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91 lines
2.8 KiB
C
91 lines
2.8 KiB
C
/******************************************************************************
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* tools/xenmon/setmask.c
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*
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* Simple utility for getting/setting the event mask
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*
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* Copyright (C) 2005 by Hewlett-Packard, Palo Alto and Fort Collins
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*
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* Authors: Lucy Cherkasova, lucy.cherkasova.hp.com
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* Rob Gardner, rob.gardner@hp.com
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* Diwaker Gupta, diwaker.gupta@hp.com
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* Date: August, 2005
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; under version 2 of the License.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#include <stdlib.h>
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#include <stdio.h>
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#include <sys/types.h>
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#include <fcntl.h>
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#include <unistd.h>
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#include <errno.h>
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#include <getopt.h>
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#include <xenctrl.h>
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#include <xen/xen.h>
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typedef struct { int counter; } atomic_t;
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#include <xen/trace.h>
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#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)
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int main(int argc, char * argv[])
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{
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dom0_op_t op;
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int ret;
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int xc_handle = xc_interface_open();
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op.cmd = DOM0_TBUFCONTROL;
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op.interface_version = DOM0_INTERFACE_VERSION;
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op.u.tbufcontrol.op = DOM0_TBUF_GET_INFO;
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ret = xc_dom0_op(xc_handle, &op);
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if ( ret != 0 )
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{
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perror("Failure to get event mask from Xen");
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exit(1);
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}
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else
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{
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printf("Current event mask: 0x%.8x\n", op.u.tbufcontrol.evt_mask);
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}
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op.cmd = DOM0_TBUFCONTROL;
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op.interface_version = DOM0_INTERFACE_VERSION;
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op.u.tbufcontrol.op = DOM0_TBUF_SET_EVT_MASK;
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op.u.tbufcontrol.evt_mask = XENMON;
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ret = xc_dom0_op(xc_handle, &op);
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printf("Setting mask to 0x%.8x\n", op.u.tbufcontrol.evt_mask);
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if ( ret != 0 )
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{
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perror("Failure to get scheduler ID from Xen");
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exit(1);
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}
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op.cmd = DOM0_TBUFCONTROL;
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op.interface_version = DOM0_INTERFACE_VERSION;
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op.u.tbufcontrol.op = DOM0_TBUF_GET_INFO;
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ret = xc_dom0_op(xc_handle, &op);
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if ( ret != 0 )
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{
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perror("Failure to get event mask from Xen");
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exit(1);
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}
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else
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{
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printf("Current event mask: 0x%.8x\n", op.u.tbufcontrol.evt_mask);
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}
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xc_interface_close(xc_handle);
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return 0;
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}
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