1 // SPDX-License-Identifier: GPL-2.0
8  * Most code is derived from arm64 port of kexec-tools
28 #define FDT_PROP_MEM_RANGE	"linux,usable-memory-range"
29 #define FDT_PROP_INITRD_START	"linux,initrd-start"
30 #define FDT_PROP_INITRD_END	"linux,initrd-end"
32 #define FDT_PROP_KASLR_SEED	"kaslr-seed"
33 #define FDT_PROP_RNG_SEED	"rng-seed"
43 	vfree(image->arch.dtb);  in arch_kimage_file_post_load_cleanup()
44 	image->arch.dtb = NULL;  in arch_kimage_file_post_load_cleanup()
46 	vfree(image->arch.elf_headers);  in arch_kimage_file_post_load_cleanup()
47 	image->arch.elf_headers = NULL;  in arch_kimage_file_post_load_cleanup()
48 	image->arch.elf_headers_sz = 0;  in arch_kimage_file_post_load_cleanup()
66 	if (ret && ret != -FDT_ERR_NOTFOUND)  in setup_dtb()
69 	if (ret && ret != -FDT_ERR_NOTFOUND)  in setup_dtb()
72 	if (image->type == KEXEC_TYPE_CRASH) {  in setup_dtb()
76 				image->arch.elf_headers_mem,  in setup_dtb()
77 				image->arch.elf_headers_sz);  in setup_dtb()
79 			return (ret == -FDT_ERR_NOSPACE ? -ENOMEM : -EINVAL);  in setup_dtb()
81 		/* add linux,usable-memory-range */  in setup_dtb()
85 				crashk_res.end - crashk_res.start + 1);  in setup_dtb()
87 			return (ret == -FDT_ERR_NOSPACE ? -ENOMEM : -EINVAL);  in setup_dtb()
97 		if (ret && (ret != -FDT_ERR_NOTFOUND))  in setup_dtb()
101 	/* add initrd-* */  in setup_dtb()
114 		if (ret && (ret != -FDT_ERR_NOTFOUND))  in setup_dtb()
118 		if (ret && (ret != -FDT_ERR_NOTFOUND))  in setup_dtb()
122 	/* add kaslr-seed */  in setup_dtb()
124 	if (ret == -FDT_ERR_NOTFOUND)  in setup_dtb()
135 		pr_notice("RNG is not initialised: omitting \"%s\" property\n",  in setup_dtb()
139 	/* add rng-seed */  in setup_dtb()
148 		pr_notice("RNG is not initialised: omitting \"%s\" property\n",  in setup_dtb()
154 		return (ret == -FDT_ERR_NOSPACE) ? -ENOMEM : -EINVAL;  in setup_dtb()
160  * More space needed so that we can add initrd, bootargs, kaslr-seed,
161  * rng-seed, userable-memory-range and elfcorehdr.
181 			return -ENOMEM;  in create_dtb()
186 			return -EINVAL;  in create_dtb()
192 			if (ret == -ENOMEM) {  in create_dtb()
223 		return -ENOMEM;  in prepare_elf_headers()
225 	cmem->max_nr_ranges = nr_ranges;  in prepare_elf_headers()
226 	cmem->nr_ranges = 0;  in prepare_elf_headers()
228 		cmem->ranges[cmem->nr_ranges].start = start;  in prepare_elf_headers()
229 		cmem->ranges[cmem->nr_ranges].end = end - 1;  in prepare_elf_headers()
230 		cmem->nr_ranges++;  in prepare_elf_headers()
246  * zero.
257 		      orig_segments = image->nr_segments;  in load_other_segments()
265 	if (image->type == KEXEC_TYPE_CRASH) {  in load_other_segments()
285 		image->arch.elf_headers = headers;  in load_other_segments()
286 		image->arch.elf_headers_mem = kbuf.mem;  in load_other_segments()
287 		image->arch.elf_headers_sz = headers_sz;  in load_other_segments()
290 			 image->arch.elf_headers_mem, kbuf.bufsz, kbuf.memsz);  in load_other_segments()
300 		/* within 1GB-aligned window of up to 32GB in size */  in load_other_segments()
334 	image->arch.dtb = dtb;  in load_other_segments()
335 	image->arch.dtb_mem = kbuf.mem;  in load_other_segments()
343 	image->nr_segments = orig_segments;  in load_other_segments()