示例#1
0
/* initialise our runtime environment */
static void
init_env(env_t env)
{
    allocman_t *allocman;
    UNUSED reservation_t virtual_reservation;
    UNUSED int error;

    /* create an allocator */
    allocman = bootstrap_use_current_simple(&env->simple, ALLOCATOR_STATIC_POOL_SIZE, allocator_mem_pool);
    assert(allocman);

    /* create a vka (interface for interacting with the underlying allocator) */
    allocman_make_vka(&env->vka, allocman);

    /* create a vspace (virtual memory management interface). We pass
     * boot info not because it will use capabilities from it, but so
     * it knows the address and will add it as a reserved region */
    error = sel4utils_bootstrap_vspace_with_bootinfo_leaky(&env->vspace,
                                                           &data, simple_get_pd(&env->simple), &env->vka, seL4_GetBootInfo());

    /* fill the allocator with virtual memory */
    void *vaddr;
    virtual_reservation = vspace_reserve_range(&env->vspace,
                                               ALLOCATOR_VIRTUAL_POOL_SIZE, seL4_AllRights, 1, &vaddr);
    assert(virtual_reservation.res);
    bootstrap_configure_virtual_pool(allocman, vaddr,
                                     ALLOCATOR_VIRTUAL_POOL_SIZE, simple_get_pd(&env->simple));
}
示例#2
0
文件: main.c 项目: jm--/seL4Examples
/*
 * Initialize all main data structures.
 *
 * The code to initialize simple, allocman, vka, and vspace is modeled
 * after the "sel4test-driver" app:
 * https://github.com/seL4/sel4test/blob/master/apps/sel4test-driver/src/main.c
 */
static void
setup_system()
{
    /* initialize boot information */
    bootinfo  = seL4_GetBootInfo();

    /* initialize simple interface */
    simple_stable_init_bootinfo(&simple, bootinfo);
    //simple_default_init_bootinfo(simple, bootinfo);

    /* create an allocator */
    allocman_t *allocman;
    allocman = bootstrap_use_current_simple(&simple, POOL_SIZE, memPool);
    assert(allocman);

    /* create a VKA */
    allocman_make_vka(&vka, allocman);

    /* create a vspace */
    UNUSED int err;
    err = sel4utils_bootstrap_vspace_with_bootinfo_leaky(&vspace,
            &allocData, seL4_CapInitThreadPD, &vka, bootinfo);
    assert(err == 0);

    /* fill allocator with virtual memory */
    void *vaddr;
    UNUSED reservation_t vres;
    vres = vspace_reserve_range(&vspace, VIRT_POOL_SIZE, seL4_AllRights,
            1, &vaddr);
    assert(vres.res);
    bootstrap_configure_virtual_pool(allocman, vaddr, VIRT_POOL_SIZE,
            seL4_CapInitThreadPD);
}
示例#3
0
文件: main.c 项目: BwRy/sel4test
static void
init_allocator(env_t env, test_init_data_t *init_data)
{
    UNUSED int error;
    UNUSED reservation_t virtual_reservation;

    /* initialise allocator */
    allocman_t *allocator = bootstrap_use_current_1level(init_data->root_cnode,
                                                         init_data->cspace_size_bits, init_data->free_slots.start,
                                                         init_data->free_slots.end, ALLOCATOR_STATIC_POOL_SIZE,
                                                         allocator_mem_pool);
    if (allocator == NULL) {
        ZF_LOGF("Failed to bootstrap allocator");
    }
    allocman_make_vka(&env->vka, allocator);

    /* fill the allocator with untypeds */
    seL4_CPtr slot;
    unsigned int size_bits_index;
    for (slot = init_data->untypeds.start, size_bits_index = 0;
            slot <= init_data->untypeds.end;
            slot++, size_bits_index++) {

        cspacepath_t path;
        vka_cspace_make_path(&env->vka, slot, &path);
        /* allocman doesn't require the paddr unless we need to ask for phys addresses,
         * which we don't. */
        uintptr_t fake_paddr = 0;
        size_t size_bits = init_data->untyped_size_bits_list[size_bits_index];
        error = allocman_utspace_add_uts(allocator, 1, &path, &size_bits, &fake_paddr);
        if (error) {
            ZF_LOGF("Failed to add untyped objects to allocator");
        }
    }

    /* create a vspace */
    void *existing_frames[init_data->stack_pages + 2];
    existing_frames[0] = (void *) init_data;
    existing_frames[1] = seL4_GetIPCBuffer();
    assert(init_data->stack_pages > 0);
    for (int i = 0; i < init_data->stack_pages; i++) {
        existing_frames[i + 2] = init_data->stack + (i * PAGE_SIZE_4K);
    }

    error = sel4utils_bootstrap_vspace(&env->vspace, &alloc_data, init_data->page_directory, &env->vka,                 NULL, NULL, existing_frames);

    /* switch the allocator to a virtual memory pool */
    void *vaddr;
    virtual_reservation = vspace_reserve_range(&env->vspace, ALLOCATOR_VIRTUAL_POOL_SIZE,
                                               seL4_AllRights, 1, &vaddr);
    if (virtual_reservation.res == 0) {
        ZF_LOGF("Failed to switch allocator to virtual memory pool");
    }

    bootstrap_configure_virtual_pool(allocator, vaddr, ALLOCATOR_VIRTUAL_POOL_SIZE,
                                     env->page_directory);

}
示例#4
0
allocman_t *test_use_current_cspace_bootinfo() {
    int error;
    allocman_t *allocman;
    vspace_alloc_t vspace;
    vka_t *vka;
    allocman = bootstrap_use_bootinfo(seL4_GetBootInfo(), sizeof(initial_mem_pool), initial_mem_pool);
    assert(allocman);
    vka = allocman_mspace_alloc(allocman, sizeof(*vka), &error);
    assert(!error);
    allocman_make_vka(vka, allocman);
    sel4util_get_vspace_alloc_leaky(&vspace, seL4_CapInitThreadPD, vka, seL4_GetBootInfo());

    reservation_t *reservation = vspace_reserve_range_at(&vspace, VIRTUAL_START, MEM_POOL_SIZE, seL4_AllRights, 1);
    assert(reservation);

    bootstrap_configure_virtual_pool(allocman, VIRTUAL_START, MEM_POOL_SIZE, seL4_CapInitThreadPD);
    error = allocman_fill_reserves(allocman);
    assert(!error);
    return allocman;
}