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Ian Campbell
9391f25767
Surprisingly it appears no callers need updating. Signed-off-by: Ian Campbell <ian.campbell@citrix.com> Acked-by: Wei Liu <wei.liu2@citrix.com> Acked-by: Ian Jackson <ian.jackson@eu.citrix.com>
73 lines
1.9 KiB
C
73 lines
1.9 KiB
C
/* Compatibility functions for mapping foreign domain's memory.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation;
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* version 2.1 of the License.
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*
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* This library 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 GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; If not, see <http://www.gnu.org/licenses/>.
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*
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* Split out from xc_foreign_memory.c
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*/
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#if !defined(__NetBSD__) && !defined(__sun__)
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#error Please implement osdep_xenforeignmemory_map directly for new ports.
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#endif
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#include "private.h"
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void *osdep_xenforeignmemory_map(xenforeignmemory_handle *fmem,
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uint32_t dom, int prot,
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const xen_pfn_t *arr, int *err, size_t num)
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{
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xen_pfn_t *pfn;
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unsigned int i;
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void *ret;
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if ((int)num <= 0) {
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errno = EINVAL;
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return NULL;
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}
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pfn = malloc(num * sizeof(*pfn));
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if (!pfn) {
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errno = ENOMEM;
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return NULL;
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}
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memcpy(pfn, arr, num * sizeof(*arr));
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ret = osdep_map_foreign_batch(fmem, dom, prot, pfn, num);
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if (ret) {
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for (i = 0; i < num; ++i)
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switch (pfn[i] ^ arr[i]) {
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case 0:
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err[i] = 0;
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break;
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default:
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err[i] = -EINVAL;
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break;
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}
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} else
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memset(err, 0, num * sizeof(*err));
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free(pfn);
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return ret;
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}
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/*
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* Local variables:
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* mode: C
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* c-file-style: "BSD"
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* c-basic-offset: 4
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* tab-width: 4
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* indent-tabs-mode: nil
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* End:
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*/
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