1/*
2 * Copyright 2017, 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#pragma once
14
15#include <vka/vka.h>
16#include <vka/kobject_t.h>
17#include <utils/util.h>
18
19static inline int vka_alloc_page_global_directory(vka_t *vka, vka_object_t *result)
20{
21    return vka_alloc_object(vka, kobject_get_type(KOBJECT_PAGE_GLOBAL_DIRECTORY, 0), seL4_PGDBits, result);
22}
23
24static inline int vka_alloc_page_upper_directory(vka_t *vka, vka_object_t *result)
25{
26    return vka_alloc_object(vka, kobject_get_type(KOBJECT_PAGE_UPPER_DIRECTORY, 0), seL4_PUDBits, result);
27}
28
29LEAKY(page_global_directory)
30LEAKY(page_upper_directory)
31
32static inline int vka_alloc_vspace_root(vka_t *vka, vka_object_t *result)
33{
34    if (config_set(CONFIG_ARM_HYPERVISOR_SUPPORT) && config_set(CONFIG_ARM_PA_SIZE_BITS_40)) {
35        return vka_alloc_page_upper_directory(vka, result);
36    } else {
37        return vka_alloc_page_global_directory(vka, result);
38    }
39}
40
41/*
42 * Get the size (in bits) of the untyped memory required to create an object of
43 * the given size.
44 */
45static inline unsigned long
46vka_arm_mode_get_object_size(seL4_Word objectType)
47{
48    switch (objectType) {
49    case seL4_ARM_HugePageObject:
50        return seL4_HugePageBits;
51    case seL4_ARM_PageGlobalDirectoryObject:
52        return seL4_PGDBits;
53    case seL4_ARM_PageUpperDirectoryObject:
54        return seL4_PUDBits;
55    default:
56        /* Unknown object type. */
57        ZF_LOGE("Unknown object type");
58        return -1;
59    }
60}
61
62