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/* Compatibility functions for mapping foreign domain's memory.
*
* 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_foreign_memory.c
*/
#if !defined(__NetBSD__) && !defined(__sun__)
#error Please implement osdep_xenforeignmemory_map directly for new ports.
#endif
#include "private.h"
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*/])
{
xen_pfn_t *pfn;
unsigned int i;
void *ret;
if ((int)num <= 0) {
errno = EINVAL;
return NULL;
}
pfn = malloc(num * sizeof(*pfn));
if (!pfn) {
errno = ENOMEM;
return NULL;
}
memcpy(pfn, arr, num * sizeof(*arr));
ret = osdep_map_foreign_batch(fmem, dom, addr, prot, flags, pfn, num);
if (ret) {
for (i = 0; i < num; ++i)
switch (pfn[i] ^ arr[i]) {
case 0:
err[i] = 0;
break;
default:
err[i] = -EINVAL;
break;
}
} else
memset(err, 0, num * sizeof(*err));
free(pfn);
return ret;
}
/*
* Local variables:
* mode: C
* c-file-style: "BSD"
* c-basic-offset: 4
* tab-width: 4
* indent-tabs-mode: nil
* End:
*/
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