1/*
2 * Copyright 2018, Data61
3 * Commonwealth Scientific and Industrial Research Organisation (CSIRO)
4 * ABN 41 687 119 230.
5 *
6 * This software may be distributed and modified according to the terms of
7 * the BSD 2-Clause license. Note that NO WARRANTY is provided.
8 * See "LICENSE_BSD2.txt" for details.
9 *
10 * @TAG(DATA61_BSD)
11 */
12
13#include <vspace/mapping.h>
14
15int vspace_get_map_obj(seL4_Word failed_bits, vspace_map_obj_t *obj) {
16    if (unlikely(obj == NULL)) {
17        return EINVAL;
18    }
19
20    switch (failed_bits) {
21    case SEL4_MAPPING_LOOKUP_NO_PT:
22        obj->size_bits = seL4_PageTableBits;
23        obj->type = seL4_X86_PageTableObject;
24        obj->map_fn = seL4_X86_PageTable_Map;
25        return 0;
26    case SEL4_MAPPING_LOOKUP_NO_PD:
27        obj->size_bits = seL4_PageDirBits;
28        obj->type = seL4_X86_PageDirectoryObject;
29        obj->map_fn = seL4_X86_PageDirectory_Map;
30        return 0;
31    case SEL4_MAPPING_LOOKUP_NO_PDPT:
32        obj->size_bits = seL4_PDPTBits,
33        obj->type = seL4_X86_PDPTObject;
34        obj->map_fn = seL4_X86_PDPT_Map;
35        return 0;
36    default:
37        return EINVAL;
38    }
39}
40