5  * SPDX-License-Identifier: Apache-2.0
38 		ext->mem_parts[mem_idx].start = start;  in llext_init_mem_part()
39 		ext->mem_parts[mem_idx].size = len;  in llext_init_mem_part()
43 			ext->mem_parts[mem_idx].attr = K_MEM_PARTITION_P_RX_U_RX;  in llext_init_mem_part()
47 			ext->mem_parts[mem_idx].attr = K_MEM_PARTITION_P_RW_U_RW;  in llext_init_mem_part()
50 			ext->mem_parts[mem_idx].attr = K_MEM_PARTITION_P_RO_U_RO;  in llext_init_mem_part()
66 	if (!ldr->sects[mem_idx].sh_size) {  in llext_copy_section()
69 	ext->mem_size[mem_idx] = ldr->sects[mem_idx].sh_size;  in llext_copy_section()
72 		if (ldr->sects[mem_idx].sh_type != SHT_NOBITS) {  in llext_copy_section()
74 			ext->mem[mem_idx] = llext_peek(ldr, ldr->sects[mem_idx].sh_offset);  in llext_copy_section()
75 			if (ext->mem[mem_idx]) {  in llext_copy_section()
76 				llext_init_mem_part(ext, mem_idx, (uintptr_t)ext->mem[mem_idx],  in llext_copy_section()
77 						    ldr->sects[mem_idx].sh_size);  in llext_copy_section()
78 				ext->mem_on_heap[mem_idx] = false;  in llext_copy_section()
81 		} else if (ldr_parm && ldr_parm->pre_located) {  in llext_copy_section()
84 			 * we add a check to make it future-proof  in llext_copy_section()
86 			ext->mem[mem_idx] = NULL;  in llext_copy_section()
87 			ext->mem_on_heap[mem_idx] = false;  in llext_copy_section()
92 	if (ldr_parm && ldr_parm->pre_located) {  in llext_copy_section()
93 		return -EFAULT;  in llext_copy_section()
98 	 * we are after that we can assign memory permission bits on.  in llext_copy_section()
101 	const uintptr_t sect_alloc = ROUND_UP(ldr->sects[mem_idx].sh_size, LLEXT_PAGE_SIZE);  in llext_copy_section()
106 	while (sect_alloc < ldr->sects[mem_idx].sh_size) {  in llext_copy_section()
112 	ext->mem[mem_idx] = llext_aligned_alloc(sect_align, sect_alloc);  in llext_copy_section()
113 	if (!ext->mem[mem_idx]) {  in llext_copy_section()
114 		return -ENOMEM;  in llext_copy_section()
117 	ext->alloc_size += sect_alloc;  in llext_copy_section()
119 	llext_init_mem_part(ext, mem_idx, (uintptr_t)ext->mem[mem_idx],  in llext_copy_section()
122 	if (ldr->sects[mem_idx].sh_type == SHT_NOBITS) {  in llext_copy_section()
123 		memset(ext->mem[mem_idx], 0, ldr->sects[mem_idx].sh_size);  in llext_copy_section()
125 		ret = llext_seek(ldr, ldr->sects[mem_idx].sh_offset);  in llext_copy_section()
130 		ret = llext_read(ldr, ext->mem[mem_idx], ldr->sects[mem_idx].sh_size);  in llext_copy_section()
136 	ext->mem_on_heap[mem_idx] = true;  in llext_copy_section()
141 	llext_free(ext->mem[mem_idx]);  in llext_copy_section()
142 	ext->mem[mem_idx] = NULL;  in llext_copy_section()
162 		if (ext->mem[mem_idx]) {  in llext_copy_regions()
181 	uint32_t flags;  in llext_adjust_mmu_permissions()  local
184 		addr = ext->mem[mem_idx];  in llext_adjust_mmu_permissions()
185 		size = ROUND_UP(ext->mem_size[mem_idx], LLEXT_PAGE_SIZE);  in llext_adjust_mmu_permissions()
192 			flags = K_MEM_PERM_EXEC;  in llext_adjust_mmu_permissions()
199 			flags = 0;  in llext_adjust_mmu_permissions()
205 		k_mem_update_flags(addr, size, flags);  in llext_adjust_mmu_permissions()
214 		if (ext->mem_size[i] != 0) {  in llext_free_regions()
216 			k_mem_update_flags(ext->mem[i],  in llext_free_regions()
217 					   ROUND_UP(ext->mem_size[i], LLEXT_PAGE_SIZE),  in llext_free_regions()
221 		if (ext->mem_on_heap[i]) {  in llext_free_regions()
223 			llext_free(ext->mem[i]);  in llext_free_regions()
224 			ext->mem[i] = NULL;  in llext_free_regions()
235 		if (ext->mem_size[i] == 0) {  in llext_add_domain()
238 		ret = k_mem_domain_add_partition(domain, &ext->mem_parts[i]);  in llext_add_domain()
248 	return -ENOSYS;  in llext_add_domain()