Files
xen/tools/libs/foreignmemory/minios.c
T
Paul Durrant 8a2e4970ab tools/libxenforeignmemory: reduce xenforeignmemory_restrict code footprint
By using a static inline stub in private.h for OS where this functionality
is not implemented, the various duplicate stubs in the OS-specific source
modules can be avoided.

Signed-off-by: Paul Durrant <paul.durrant@citrix.com>
Reviewed-by: Roger Pau Monné <roger.pau@citrix.com>
Acked-by: Wei Liu <wei.liu2@citrix.com>
2018-04-03 17:05:16 +01:00

70 lines
1.8 KiB
C

/*
* 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;
* version 2.1 of the License.
*
* 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, see <http://www.gnu.org/licenses/>.
*
* Split out from xc_minios.c
*
* Copyright 2007-2008 Samuel Thibault <samuel.thibault@eu.citrix.com>.
*/
#include <mini-os/types.h>
#include <mini-os/os.h>
#include <mini-os/mm.h>
#include <mini-os/lib.h>
#include <errno.h>
#include <sys/mman.h>
#include "private.h"
int osdep_xenforeignmemory_open(xenforeignmemory_handle *fmem)
{
/* No fd required */
return 0;
}
int osdep_xenforeignmemory_close(xenforeignmemory_handle *fmem)
{
return 0;
}
void *osdep_xenforeignmemory_map(xenforeignmemory_handle *fmem,
uint32_t dom, void *addr,
int prot, int flags, size_t num,
const xen_pfn_t arr[/*num*/], int err[/*num*/])
{
unsigned long pt_prot = 0;
if (prot & PROT_READ)
pt_prot = L1_PROT_RO;
if (prot & PROT_WRITE)
pt_prot = L1_PROT;
return map_frames_ex(arr, num, 1, 0, 1, dom, err, pt_prot);
}
int osdep_xenforeignmemory_unmap(xenforeignmemory_handle *fmem,
void *addr, size_t num)
{
return munmap(addr, num << PAGE_SHIFT);
}
/*
* Local variables:
* mode: C
* c-file-style: "BSD"
* c-basic-offset: 4
* tab-width: 4
* indent-tabs-mode: nil
* End:
*/