/* 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, int prot, 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, prot, 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:
 */
