1 // SPDX-License-Identifier: GPL-2.0-only
29 #include <asm/processor.h>
54  * processor. And when loading kvm_intel module, the
192 	walk_system_ram_res(0, -1, &nr_ranges, get_nr_ram_ranges_callback);  in fill_up_crash_elf_data()
205 	cmem->max_nr_ranges = nr_ranges;  in fill_up_crash_elf_data()
206 	cmem->nr_ranges = 0;  in fill_up_crash_elf_data()
213  * might lead to split and split ranges are put in cmem->ranges[] array
220 	ret = crash_exclude_mem_range(cmem, 0, (1<<20)-1);  in elf_header_exclude_ranges()
240 	cmem->ranges[cmem->nr_ranges].start = res->start;  in prepare_elf64_ram_headers_callback()
241 	cmem->ranges[cmem->nr_ranges].end = res->end;  in prepare_elf64_ram_headers_callback()
242 	cmem->nr_ranges++;  in prepare_elf64_ram_headers_callback()
248 static int prepare_elf_headers(struct kimage *image, void **addr,  in prepare_elf_headers()  argument
256 		return -ENOMEM;  in prepare_elf_headers()
258 	ret = walk_system_ram_res(0, -1, cmem, prepare_elf64_ram_headers_callback);  in prepare_elf_headers()
279 	nr_e820_entries = params->e820_entries;  in add_e820_entry()
283 	memcpy(&params->e820_table[nr_e820_entries], entry, sizeof(struct e820_entry));  in add_e820_entry()
284 	params->e820_entries++;  in add_e820_entry()
291 	struct boot_params *params = cmd->params;  in memmap_entry_callback()
294 	ei.addr = res->start;  in memmap_entry_callback()
296 	ei.type = cmd->type;  in memmap_entry_callback()
302 static int memmap_exclude_ranges(struct kimage *image, struct crash_mem *cmem,  in memmap_exclude_ranges()  argument
308 	cmem->ranges[0].start = mstart;  in memmap_exclude_ranges()
309 	cmem->ranges[0].end = mend;  in memmap_exclude_ranges()
310 	cmem->nr_ranges = 1;  in memmap_exclude_ranges()
313 	start = image->elf_load_addr;  in memmap_exclude_ranges()
314 	end = start + image->elf_headers_sz - 1;  in memmap_exclude_ranges()
319 int crash_setup_memmap_entries(struct kimage *image, struct boot_params *params)  in crash_setup_memmap_entries()  argument
329 		return -ENOMEM;  in crash_setup_memmap_entries()
337 	walk_iomem_res_desc(IORES_DESC_NONE, flags, 0, (1<<20)-1, &cmd,  in crash_setup_memmap_entries()
343 	walk_iomem_res_desc(IORES_DESC_ACPI_TABLES, flags, 0, -1, &cmd,  in crash_setup_memmap_entries()
346 	/* Add ACPI Non-volatile Storage */  in crash_setup_memmap_entries()
348 	walk_iomem_res_desc(IORES_DESC_ACPI_NV_STORAGE, flags, 0, -1, &cmd,  in crash_setup_memmap_entries()
354 	walk_iomem_res_desc(IORES_DESC_RESERVED, flags, 0, -1, &cmd,  in crash_setup_memmap_entries()
366 	ret = memmap_exclude_ranges(image, cmem, crashk_res.start, crashk_res.end);  in crash_setup_memmap_entries()
370 	for (i = 0; i < cmem->nr_ranges; i++) {  in crash_setup_memmap_entries()
371 		ei.size = cmem->ranges[i].end - cmem->ranges[i].start + 1;  in crash_setup_memmap_entries()
376 		ei.addr = cmem->ranges[i].start;  in crash_setup_memmap_entries()
386 int crash_load_segments(struct kimage *image)  in crash_load_segments()  argument
389 	struct kexec_buf kbuf = { .image = image, .buf_min = 0,  in crash_load_segments()
393 	ret = prepare_elf_headers(image, &kbuf.buffer, &kbuf.bufsz);  in crash_load_segments()
397 	image->elf_headers = kbuf.buffer;  in crash_load_segments()
398 	image->elf_headers_sz = kbuf.bufsz;  in crash_load_segments()
405 		vfree((void *)image->elf_headers);  in crash_load_segments()
408 	image->elf_load_addr = kbuf.mem;  in crash_load_segments()
410 		 image->elf_load_addr, kbuf.bufsz, kbuf.memsz);  in crash_load_segments()