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);
}
void pre_init(void) {
int error;
set_putchar(putchar_putchar);
/* Camkes adds nothing to our address space, so this array is empty */
void *existing_frames[] = {
NULL
};
camkes_make_simple(&camkes_simple);
camkes_simple.IOPort_cap = simple_ioport_wrapper;
camkes_simple.frame_cap = simple_frame_cap_wrapper;
/* Initialize allocator */
allocman = bootstrap_use_current_1level(
simple_get_cnode(&camkes_simple),
simple_get_cnode_size_bits(&camkes_simple),
simple_last_valid_cap(&camkes_simple) + 1,
BIT(simple_get_cnode_size_bits(&camkes_simple)),
sizeof(allocator_mempool), allocator_mempool
);
assert(allocman);
error = allocman_add_simple_untypeds(allocman, &camkes_simple);
make_proxy_vka(&vka, allocman);
/* Initialize the vspace */
error = sel4utils_bootstrap_vspace(&vspace, &vspace_data,
simple_get_init_cap(&camkes_simple, seL4_CapInitThreadPD), &vka, NULL, NULL, existing_frames);
assert(!error);
/* Create temporary mapping reservation, and map in a frame to
* create any book keeping */
reservation_t reservation;
reservation.res = allocman_mspace_alloc(allocman, sizeof(sel4utils_res_t), &error);
assert(reservation.res);
void *reservation_vaddr;
error = sel4utils_reserve_range_no_alloc(&vspace, reservation.res, PAGE_SIZE_4K, seL4_AllRights, 1, &reservation_vaddr);
assert(!error);
error = vspace_new_pages_at_vaddr(&vspace, reservation_vaddr, 1, seL4_PageBits, reservation);
assert(!error);
vspace_unmap_pages(&vspace, reservation_vaddr, 1, seL4_PageBits, VSPACE_FREE);
proxy_give_vspace(&vka, &vspace, reservation_vaddr, reservation);
sel4utils_reserve_range_no_alloc(&vspace, &muslc_brk_reservation_memory, BRK_VIRTUAL_SIZE, seL4_AllRights, 1, &muslc_brk_reservation_start);
muslc_this_vspace = &vspace;
muslc_brk_reservation = (reservation_t){.res = &muslc_brk_reservation_memory};
}
void test_use_current_1level_cspace() {
int error;
seL4_CPtr i;
allocman_t *allocman;
seL4_BootInfo *bi = seL4_GetBootInfo();
allocman = bootstrap_use_current_1level(seL4_CapInitThreadCNode, bi->initThreadCNodeSizeBits, bi->empty.start, bi->empty.end, sizeof(initial_mem_pool), initial_mem_pool);
assert(allocman);
/* have to add all our resources manually */
for (i = bi->untyped.start; i < bi->untyped.end; i++) {
cspacepath_t slot = allocman_cspace_make_path(allocman, i);
uint32_t size_bits = bi->untypedSizeBitsList[i - bi->untyped.start];
uint32_t paddr = bi->untypedPaddrList[i - bi->untyped.start];
error = allocman_utspace_add_uts(allocman, 1, &slot, &size_bits, &paddr);
assert(!error);
}
error = allocman_fill_reserves(allocman);
assert(!error);
}
static int
vmm_init(void)
{
vka_object_t fault_ep_obj;
vka_t* vka;
simple_t* simple;
vspace_t* vspace;
int err;
vka = &_vka;
vspace = &_vspace;
simple = &_simple;
fault_ep_obj.cptr = 0;
/* Camkes adds nothing to our address space, so this array is empty */
void *existing_frames[] = {
NULL
};
camkes_make_simple(simple);
start_extra_frame_caps = simple_last_valid_cap(simple) + 1;
/* Initialize allocator */
allocman = bootstrap_use_current_1level(
simple_get_cnode(simple),
simple_get_cnode_size_bits(simple),
simple_last_valid_cap(simple) + 1 + num_extra_frame_caps,
BIT(simple_get_cnode_size_bits(simple)),
sizeof(allocator_mempool), allocator_mempool
);
assert(allocman);
err = allocman_add_simple_untypeds(allocman, simple);
assert(!err);
allocman_make_vka(vka, allocman);
/* Initialize the vspace */
err = sel4utils_bootstrap_vspace(vspace, &_alloc_data,
simple_get_init_cap(simple, seL4_CapInitThreadPD), vka, NULL, NULL, existing_frames);
assert(!err);
/* Initialise device support */
err = sel4platsupport_new_io_mapper(*simple, *vspace, *vka,
&_io_ops.io_mapper);
assert(!err);
/* Initialise MUX subsystem */
err = mux_sys_init(&_io_ops, &_io_ops.mux_sys);
assert(!err);
/* Initialise DMA */
err = dma_dmaman_init(&_dma_morecore, NULL, &_io_ops.dma_manager);
assert(!err);
/* Allocate an endpoint for listening to events */
err = vka_alloc_endpoint(vka, &fault_ep_obj);
assert(!err);
_fault_endpoint = fault_ep_obj.cptr;
/* Create an IRQ server */
err = irq_server_new(vspace, vka, simple_get_cnode(simple), IRQSERVER_PRIO,
simple, fault_ep_obj.cptr,
IRQ_MESSAGE_LABEL, 256, &_irq_server);
assert(!err);
return 0;
}