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/******************************************************************************
*
* tools/libxc/xc_mem_access.c
*
* Interface to low-level memory access mode functionality
*
* Copyright (c) 2011 Virtuata, Inc.
*
* 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; either
* version 2.1 of the License, or (at your option) any later version.
*
* 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_mem_access_enable(xc_interface *xch, domid_t domain_id,
uint32_t *port)
{
if ( !port )
{
errno = EINVAL;
return -1;
}
return xc_mem_event_control(xch, domain_id,
XEN_DOMCTL_MEM_EVENT_OP_ACCESS_ENABLE,
XEN_DOMCTL_MEM_EVENT_OP_ACCESS,
port);
}
int xc_mem_access_disable(xc_interface *xch, domid_t domain_id)
{
return xc_mem_event_control(xch, domain_id,
XEN_DOMCTL_MEM_EVENT_OP_ACCESS_DISABLE,
XEN_DOMCTL_MEM_EVENT_OP_ACCESS,
NULL);
}
int xc_mem_access_resume(xc_interface *xch, domid_t domain_id, unsigned long gfn)
{
return xc_mem_event_memop(xch, domain_id,
XENMEM_access_op_resume,
XENMEM_access_op,
gfn, NULL);
}
/*
* Local variables:
* mode: C
* c-file-style: "BSD"
* c-basic-offset: 4
* indent-tabs-mode: nil
* End:
*/
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