C++ (Cpp) find_map_by_va示例

示例#1

文件： core_mmu.c 项目： lackan/optee_os

/* core_va2pa - teecore exported service */
int core_va2pa_helper(void *va, paddr_t *pa)
{
	struct tee_mmap_region *map;

	map = find_map_by_va(va);
	if (!va_is_in_map(map, (vaddr_t)va))
		return -1;

	*pa = ((uintptr_t)va & (map->region_size - 1)) |
	    ((map->pa + (uintptr_t)va - map->va) & ~(map->region_size - 1));
	return 0;
}

示例#2

文件： core_mmu.c 项目： AIdrifter/optee_os

/* core_va2pa - teecore exported service */
int core_va2pa_helper(void *va, paddr_t *pa)
{
	struct map_area *map;

	map = find_map_by_va(va);
	if (map == NULL)
		return -1;

	*pa = ((uintptr_t)va & (map->region_size - 1)) |
	    ((map->pa + (uintptr_t)va - map->va) & ~(map->region_size - 1));
	return 0;
}