/*
* test attributes of target physical buffer
*
* Flags: pbuf_is(SECURE, NOT_SECURE, RAM, IOMEM, KEYVAULT).
*
*/
bool core_pbuf_is(uint32_t attr, paddr_t pbuf, size_t len)
{
struct tee_mmap_region *map;
/* Empty buffers complies with anything */
if (len == 0)
return true;
switch (attr) {
case CORE_MEM_SEC:
return pbuf_is_inside(secure_only, pbuf, len);
case CORE_MEM_NON_SEC:
return pbuf_is_inside(nsec_shared, pbuf, len);
case CORE_MEM_TEE_RAM:
return pbuf_inside_map_area(pbuf, len, map_tee_ram);
case CORE_MEM_TA_RAM:
return pbuf_inside_map_area(pbuf, len, map_ta_ram);
case CORE_MEM_NSEC_SHM:
return pbuf_inside_map_area(pbuf, len, map_nsec_shm);
case CORE_MEM_MULTPURPOSE:
return pbuf_is_multipurpose(pbuf, len);
case CORE_MEM_EXTRAM:
return pbuf_is_inside(ddr, pbuf, len);
case CORE_MEM_CACHED:
map = find_map_by_pa(pbuf);
if (map == NULL || !pbuf_inside_map_area(pbuf, len, map))
return false;
return map->attr >> TEE_MATTR_CACHE_SHIFT ==
TEE_MATTR_CACHE_CACHED;
default:
return false;
}
}
/*
* test attributes of target physical buffer
*
* Flags: pbuf_is(SECURE, NOT_SECURE, RAM, IOMEM, KEYVAULT).
*
*/
bool core_pbuf_is(uint32_t attr, tee_paddr_t pbuf, size_t len)
{
struct map_area *map;
/* Empty buffers complies with anything */
if (len == 0)
return true;
switch (attr) {
case CORE_MEM_SEC:
return ((platform_pbuf_is_t)bootcfg_pbuf_is)(attr, pbuf, len);
case CORE_MEM_NON_SEC:
return ((platform_pbuf_is_t)bootcfg_pbuf_is)(attr, pbuf, len);
case CORE_MEM_TEE_RAM:
return pbuf_inside_map_area(pbuf, len, map_tee_ram);
case CORE_MEM_TA_RAM:
return pbuf_inside_map_area(pbuf, len, map_ta_ram);
case CORE_MEM_NSEC_SHM:
return pbuf_inside_map_area(pbuf, len, map_nsec_shm);
case CORE_MEM_MULTPURPOSE:
return ((platform_pbuf_is_t)bootcfg_pbuf_is)(attr, pbuf, len);
case CORE_MEM_EXTRAM:
return ((platform_pbuf_is_t)bootcfg_pbuf_is)(attr, pbuf, len);
case CORE_MEM_CACHED:
map = find_map_by_pa(pbuf);
if (map == NULL || !pbuf_inside_map_area(pbuf, len, map))
return false;
return map->cached;
default:
return false;
}
}
bool core_mmu_add_mapping(enum teecore_memtypes type, paddr_t addr, size_t len)
{
struct core_mmu_table_info tbl_info;
struct tee_mmap_region *map;
size_t n;
size_t granule;
paddr_t p;
size_t l;
if (!len)
return true;
/* Check if the memory is already mapped */
map = find_map_by_type_and_pa(type, addr);
if (map && pbuf_inside_map_area(addr, len, map))
return true;
/* Find the reserved va space used for late mappings */
map = find_map_by_type(MEM_AREA_RES_VASPACE);
if (!map)
return false;
if (!core_mmu_find_table(map->va, UINT_MAX, &tbl_info))
return false;
granule = 1 << tbl_info.shift;
p = ROUNDDOWN(addr, granule);
l = ROUNDUP(len + addr - p, granule);
/*
* Something is wrong, we can't fit the va range into the selected
* table. The reserved va range is possibly missaligned with
* granule.
*/
if (core_mmu_va2idx(&tbl_info, map->va + len) >= tbl_info.num_entries)
return false;
/* Find end of the memory map */
n = 0;
while (static_memory_map[n].type != MEM_AREA_NOTYPE)
n++;
if (n < (ARRAY_SIZE(static_memory_map) - 1)) {
/* There's room for another entry */
static_memory_map[n].va = map->va;
static_memory_map[n].size = l;
static_memory_map[n + 1].type = MEM_AREA_NOTYPE;
map->va += l;
map->size -= l;
map = static_memory_map + n;
} else {
/*
* There isn't room for another entry, steal the reserved
* entry as it's not useful for anything else any longer.
*/
map->size = l;
}
map->type = type;
map->region_size = granule;
map->attr = core_mmu_type_to_attr(type);
map->pa = p;
set_region(&tbl_info, map);
return true;
}
