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Rev 1890 Rev 1891
Line 104... Line 104...
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static int area_flags_to_page_flags(int aflags);
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static int area_flags_to_page_flags(int aflags);
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static as_area_t *find_area_and_lock(as_t *as, uintptr_t va);
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static as_area_t *find_area_and_lock(as_t *as, uintptr_t va);
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static bool check_area_conflicts(as_t *as, uintptr_t va, size_t size, as_area_t *avoid_area);
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static bool check_area_conflicts(as_t *as, uintptr_t va, size_t size, as_area_t *avoid_area);
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static void sh_info_remove_reference(share_info_t *sh_info);
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static void sh_info_remove_reference(share_info_t *sh_info);
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static int as_constructor(void *obj, int flags)
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{
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    as_t *as = (as_t *) obj;
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    int rc;
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    link_initialize(&as->inactive_as_with_asid_link);
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    mutex_initialize(&as->lock);   
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    rc = as_constructor_arch(as, flags);
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    return rc;
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}
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static int as_destructor(void *obj)
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{
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    as_t *as = (as_t *) obj;
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    return as_destructor_arch(as);
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}
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/** Initialize address space subsystem. */
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/** Initialize address space subsystem. */
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void as_init(void)
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void as_init(void)
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{
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{
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    as_arch_init();
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    as_arch_init();
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    as_slab = slab_cache_create("as_slab", sizeof(as_t), 0, NULL, NULL, SLAB_CACHE_MAGDEFERRED);
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    as_slab = slab_cache_create("as_slab", sizeof(as_t), 0,
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        as_constructor, as_destructor, SLAB_CACHE_MAGDEFERRED);
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    AS_KERNEL = as_create(FLAG_AS_KERNEL);
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    AS_KERNEL = as_create(FLAG_AS_KERNEL);
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    if (!AS_KERNEL)
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    if (!AS_KERNEL)
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        panic("can't create kernel address space\n");
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        panic("can't create kernel address space\n");
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as_t *as_create(int flags)
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as_t *as_create(int flags)
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{
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{
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    as_t *as;
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    as_t *as;
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    as = (as_t *) slab_alloc(as_slab, 0);
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    as = (as_t *) slab_alloc(as_slab, 0);
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    link_initialize(&as->inactive_as_with_asid_link);
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    mutex_initialize(&as->lock);
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    (void) as_create_arch(as, 0);
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    btree_create(&as->as_area_btree);
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    btree_create(&as->as_area_btree);
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    if (flags & FLAG_AS_KERNEL)
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    if (flags & FLAG_AS_KERNEL)
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        as->asid = ASID_KERNEL;
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        as->asid = ASID_KERNEL;
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    else
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    else