+++ /dev/null
---- a/kexec/arch/mips/Makefile
-+++ b/kexec/arch/mips/Makefile
-@@ -4,7 +4,7 @@
- mips_KEXEC_SRCS = kexec/arch/mips/kexec-mips.c
- mips_KEXEC_SRCS += kexec/arch/mips/kexec-elf-mips.c
- mips_KEXEC_SRCS += kexec/arch/mips/kexec-elf-rel-mips.c
--mips_KEXEC_SRCS += kexec/arch/mips/mips-setup-simple.S
-+mips_KEXEC_SRCS += kexec/arch/mips/crashdump-mips.c
-
- mips_ADD_BUFFER =
- mips_ADD_SEGMENT =
---- /dev/null
-+++ b/kexec/arch/mips/crashdump-mips.c
-@@ -0,0 +1,371 @@
-+/*
-+ * kexec: Linux boots Linux
-+ *
-+ * 2005 (C) IBM Corporation.
-+ * 2008 (C) MontaVista Software, Inc.
-+ *
-+ * This program is free software; you can redistribute it and/or modify
-+ * it under the terms of the GNU General Public License as published by
-+ * the Free Software Foundation (version 2 of the License).
-+ *
-+ * This program is distributed in the hope that it will be useful,
-+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
-+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-+ * GNU General Public License for more details.
-+ *
-+ * You should have received a copy of the GNU General Public License
-+ * along with this program; if not, write to the Free Software
-+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
-+ */
-+#include <stdio.h>
-+#include <string.h>
-+#include <stdlib.h>
-+#include <errno.h>
-+#include <elf.h>
-+#include <sys/types.h>
-+#include <sys/stat.h>
-+#include <unistd.h>
-+#include "../../kexec.h"
-+#include "../../kexec-elf.h"
-+#include "../../kexec-syscall.h"
-+#include "../../crashdump.h"
-+#include "kexec-mips.h"
-+#include "crashdump-mips.h"
-+
-+extern struct arch_options_t arch_options;
-+
-+/* Stores a sorted list of RAM memory ranges for which to create elf headers.
-+ * A separate program header is created for backup region */
-+static struct memory_range crash_memory_range[CRASH_MAX_MEMORY_RANGES];
-+
-+/* Memory region reserved for storing panic kernel and other data. */
-+static struct memory_range crash_reserved_mem;
-+
-+/*
-+ * To store the memory size of the first kernel and this value will be
-+ * passed to the second kernel as command line (savemaxmem=xM).
-+ * The second kernel will be calculated saved_max_pfn based on this
-+ * variable.
-+ */
-+unsigned long long saved_max_mem = 0;
-+
-+/* Removes crash reserve region from list of memory chunks for whom elf program
-+ * headers have to be created. Assuming crash reserve region to be a single
-+ * continuous area fully contained inside one of the memory chunks */
-+static int exclude_crash_reserve_region(int *nr_ranges)
-+{
-+ int i, j, tidx = -1;
-+ unsigned long long cstart, cend;
-+ struct memory_range temp_region;
-+
-+ /* Crash reserved region. */
-+ cstart = crash_reserved_mem.start;
-+ cend = crash_reserved_mem.end;
-+
-+ for (i = 0; i < (*nr_ranges); i++) {
-+ unsigned long long mstart, mend;
-+ mstart = crash_memory_range[i].start;
-+ mend = crash_memory_range[i].end;
-+ if (cstart < mend && cend > mstart) {
-+ if (cstart != mstart && cend != mend) {
-+ /* Split memory region */
-+ crash_memory_range[i].end = cstart - 1;
-+ temp_region.start = cend + 1;
-+ temp_region.end = mend;
-+ temp_region.type = RANGE_RAM;
-+ tidx = i+1;
-+ } else if (cstart != mstart)
-+ crash_memory_range[i].end = cstart - 1;
-+ else
-+ crash_memory_range[i].start = cend + 1;
-+ }
-+ }
-+ /* Insert split memory region, if any. */
-+ if (tidx >= 0) {
-+ if (*nr_ranges == CRASH_MAX_MEMORY_RANGES) {
-+ /* No space to insert another element. */
-+ fprintf(stderr, "Error: Number of crash memory ranges"
-+ " excedeed the max limit\n");
-+ return -1;
-+ }
-+ for (j = (*nr_ranges - 1); j >= tidx; j--)
-+ crash_memory_range[j+1] = crash_memory_range[j];
-+ crash_memory_range[tidx].start = temp_region.start;
-+ crash_memory_range[tidx].end = temp_region.end;
-+ crash_memory_range[tidx].type = temp_region.type;
-+ (*nr_ranges)++;
-+ }
-+ return 0;
-+}
-+/* Reads the appropriate file and retrieves the SYSTEM RAM regions for whom to
-+ * create Elf headers. Keeping it separate from get_memory_ranges() as
-+ * requirements are different in the case of normal kexec and crashdumps.
-+ *
-+ * Normal kexec needs to look at all of available physical memory irrespective
-+ * of the fact how much of it is being used by currently running kernel.
-+ * Crashdumps need to have access to memory regions actually being used by
-+ * running kernel. Expecting a different file/data structure than /proc/iomem
-+ * to look into down the line. May be something like /proc/kernelmem or may
-+ * be zone data structures exported from kernel.
-+ */
-+static int get_crash_memory_ranges(struct memory_range **range, int *ranges)
-+{
-+ const char iomem[]= "/proc/iomem";
-+ int i, memory_ranges = 0;
-+ char line[MAX_LINE];
-+ FILE *fp;
-+ unsigned long long start, end;
-+
-+ fp = fopen(iomem, "r");
-+ if (!fp) {
-+ fprintf(stderr, "Cannot open %s: %s\n",
-+ iomem, strerror(errno));
-+ return -1;
-+ }
-+
-+ /* Separate segment for backup region */
-+ crash_memory_range[0].start = BACKUP_SRC_START;
-+ crash_memory_range[0].end = BACKUP_SRC_END;
-+ crash_memory_range[0].type = RANGE_RAM;
-+ memory_ranges++;
-+
-+ while(fgets(line, sizeof(line), fp) != 0) {
-+ char *str;
-+ int type, consumed, count;
-+ if (memory_ranges >= CRASH_MAX_MEMORY_RANGES)
-+ break;
-+ count = sscanf(line, "%Lx-%Lx : %n",
-+ &start, &end, &consumed);
-+ if (count != 2)
-+ continue;
-+ str = line + consumed;
-+
-+ /* Only Dumping memory of type System RAM. */
-+ if (memcmp(str, "System RAM\n", 11) == 0) {
-+ type = RANGE_RAM;
-+ } else if (memcmp(str, "Crash kernel\n", 13) == 0) {
-+ /* Reserved memory region. New kernel can
-+ * use this region to boot into. */
-+ crash_reserved_mem.start = start;
-+ crash_reserved_mem.end = end;
-+ crash_reserved_mem.type = RANGE_RAM;
-+ continue;
-+ } else {
-+ continue;
-+ }
-+
-+ if (start == BACKUP_SRC_START && end >= (BACKUP_SRC_END + 1))
-+ start = BACKUP_SRC_END + 1;
-+
-+ crash_memory_range[memory_ranges].start = start;
-+ crash_memory_range[memory_ranges].end = end;
-+ crash_memory_range[memory_ranges].type = type;
-+ memory_ranges++;
-+
-+ /* Segregate linearly mapped region. */
-+ if ((MAXMEM - 1) >= start && (MAXMEM - 1) <= end) {
-+ crash_memory_range[memory_ranges-1].end = MAXMEM -1;
-+
-+ /* Add segregated region. */
-+ crash_memory_range[memory_ranges].start = MAXMEM;
-+ crash_memory_range[memory_ranges].end = end;
-+ crash_memory_range[memory_ranges].type = type;
-+ memory_ranges++;
-+ }
-+ }
-+ fclose(fp);
-+
-+ if (exclude_crash_reserve_region(&memory_ranges) < 0)
-+ return -1;
-+
-+ for (i = 0; i < memory_ranges; i++)
-+ if (saved_max_mem < crash_memory_range[i].end)
-+ saved_max_mem = crash_memory_range[i].end + 1;
-+
-+ *range = crash_memory_range;
-+ *ranges = memory_ranges;
-+ return 0;
-+}
-+
-+/* Converts unsigned long to ascii string. */
-+static void ultoa(unsigned long i, char *str)
-+{
-+ int j = 0, k;
-+ char tmp;
-+
-+ do {
-+ str[j++] = i % 10 + '0';
-+ } while ((i /=10) > 0);
-+ str[j] = '\0';
-+
-+ /* Reverse the string. */
-+ for (j = 0, k = strlen(str) - 1; j < k; j++, k--) {
-+ tmp = str[k];
-+ str[k] = str[j];
-+ str[j] = tmp;
-+ }
-+}
-+
-+/* Adds the appropriate mem= options to command line, indicating the
-+ * memory region the new kernel can use to boot into. */
-+static int cmdline_add_mem(char *cmdline, unsigned long addr, unsigned long size)
-+{
-+ int cmdlen, len;
-+ char str[50], *ptr;
-+
-+ addr = addr/1024;
-+ size = size/1024;
-+ ptr = str;
-+ strcpy (str, " mem=");
-+ ptr += strlen(str);
-+ ultoa(size, ptr);
-+ strcat (str, "K@");
-+ ptr = str + strlen(str);
-+ ultoa(addr, ptr);
-+ strcat (str, "K");
-+ len = strlen(str);
-+ cmdlen = strlen(cmdline) + len;
-+ if (cmdlen > (COMMAND_LINE_SIZE - 1))
-+ die("Command line overflow\n");
-+ strcat(cmdline, str);
-+
-+ return 0;
-+}
-+
-+/* Adds the elfcorehdr= command line parameter to command line. */
-+static int cmdline_add_elfcorehdr(char *cmdline, unsigned long addr)
-+{
-+ int cmdlen, len, align = 1024;
-+ char str[30], *ptr;
-+
-+ /* Passing in elfcorehdr=xxxK format. Saves space required in cmdline.
-+ * Ensure 1K alignment*/
-+ if (addr%align)
-+ return -1;
-+ addr = addr/align;
-+ ptr = str;
-+ strcpy(str, " elfcorehdr=");
-+ ptr += strlen(str);
-+ ultoa(addr, ptr);
-+ strcat(str, "K");
-+ len = strlen(str);
-+ cmdlen = strlen(cmdline) + len;
-+ if (cmdlen > (COMMAND_LINE_SIZE - 1))
-+ die("Command line overflow\n");
-+ strcat(cmdline, str);
-+ return 0;
-+}
-+
-+/* Adds the elfcorehdr= command line parameter to command line. */
-+static int cmdline_add_savemaxmem(char *cmdline, unsigned long addr)
-+{
-+ int cmdlen, len, align = 1024;
-+ char str[30], *ptr;
-+
-+ /* Passing in savemaxmem=xxxM format. Saves space required in cmdline.*/
-+ addr = addr/(align*align);
-+ ptr = str;
-+ strcpy(str, " savemaxmem=");
-+ ptr += strlen(str);
-+ ultoa(addr, ptr);
-+ strcat(str, "M");
-+ len = strlen(str);
-+ cmdlen = strlen(cmdline) + len;
-+ if (cmdlen > (COMMAND_LINE_SIZE - 1))
-+ die("Command line overflow\n");
-+ strcat(cmdline, str);
-+ return 0;
-+}
-+
-+#ifdef __mips64
-+static struct crash_elf_info elf_info64 =
-+{
-+ class: ELFCLASS64,
-+ data: ELFDATA2MSB,
-+ machine: EM_MIPS,
-+ backup_src_start: BACKUP_SRC_START,
-+ backup_src_end: BACKUP_SRC_END,
-+ page_offset: PAGE_OFFSET,
-+ lowmem_limit: MAXMEM,
-+};
-+#endif
-+static struct crash_elf_info elf_info32 =
-+{
-+ class: ELFCLASS32,
-+ data: ELFDATA2MSB,
-+ machine: EM_MIPS,
-+ backup_src_start: BACKUP_SRC_START,
-+ backup_src_end: BACKUP_SRC_END,
-+ page_offset: PAGE_OFFSET,
-+ lowmem_limit: MAXMEM,
-+};
-+
-+/* Loads additional segments in case of a panic kernel is being loaded.
-+ * One segment for backup region, another segment for storing elf headers
-+ * for crash memory image.
-+ */
-+int load_crashdump_segments(struct kexec_info *info, char* mod_cmdline,
-+ unsigned long max_addr, unsigned long min_base)
-+{
-+ void *tmp;
-+ unsigned long sz, elfcorehdr;
-+ int nr_ranges, align = 1024;
-+ struct memory_range *mem_range;
-+
-+ if (get_crash_memory_ranges(&mem_range, &nr_ranges) < 0)
-+ return -1;
-+
-+ /* Create a backup region segment to store backup data*/
-+ sz = (BACKUP_SRC_SIZE + align - 1) & ~(align - 1);
-+ tmp = xmalloc(sz);
-+ memset(tmp, 0, sz);
-+ info->backup_start = add_buffer(info, tmp, sz, sz, align,
-+ crash_reserved_mem.start,
-+ crash_reserved_mem.end,-1);
-+
-+#ifdef __mips64
-+ /* Create elf header segment and store crash image data. */
-+ if (arch_options.core_header_type == CORE_TYPE_ELF64) {
-+ if (crash_create_elf64_headers(info, &elf_info64,
-+ crash_memory_range, nr_ranges,
-+ &tmp, &sz,
-+ ELF_CORE_HEADER_ALIGN) < 0)
-+ return -1;
-+ }
-+ else {
-+ if (crash_create_elf32_headers(info, &elf_info32,
-+ crash_memory_range, nr_ranges,
-+ &tmp, &sz,
-+ ELF_CORE_HEADER_ALIGN) < 0)
-+ return -1;
-+ }
-+#else
-+ if (crash_create_elf32_headers(info, &elf_info32,
-+ crash_memory_range, nr_ranges,
-+ &tmp, &sz,
-+ ELF_CORE_HEADER_ALIGN) < 0)
-+ return -1;
-+#endif
-+ elfcorehdr = add_buffer(info, tmp, sz, sz, align,
-+ crash_reserved_mem.start,
-+ crash_reserved_mem.end, -1);
-+
-+ /*
-+ * backup segment is after elfcorehdr, so use elfcorehdr as top of
-+ * kernel's available memory
-+ */
-+ cmdline_add_mem(mod_cmdline, crash_reserved_mem.start,
-+ elfcorehdr - crash_reserved_mem.start);
-+ cmdline_add_elfcorehdr(mod_cmdline, elfcorehdr);
-+ cmdline_add_savemaxmem(mod_cmdline, saved_max_mem);
-+ return 0;
-+}
-+
-+int is_crashkernel_mem_reserved(void)
-+{
-+ uint64_t start, end;
-+
-+ return parse_iomem_single("Crash kernel\n", &start, &end) == 0 ?
-+ (start != end) : 0;
-+}
-+
---- /dev/null
-+++ b/kexec/arch/mips/crashdump-mips.h
-@@ -0,0 +1,26 @@
-+#ifndef CRASHDUMP_MIPS_H
-+#define CRASHDUMP_MIPS_H
-+
-+struct kexec_info;
-+int load_crashdump_segments(struct kexec_info *info, char *mod_cmdline,
-+ unsigned long max_addr, unsigned long min_base);
-+#ifdef __mips64
-+#define PAGE_OFFSET 0xa800000000000000ULL
-+#else
-+#define PAGE_OFFSET 0x80000000
-+#endif
-+#define __pa(x) ((unsigned long)(X)& 0x7fffffff)
-+
-+#define MAXMEM 0x80000000
-+
-+#define CRASH_MAX_MEMMAP_NR (KEXEC_MAX_SEGMENTS + 1)
-+#define CRASH_MAX_MEMORY_RANGES (MAX_MEMORY_RANGES + 2)
-+
-+#define COMMAND_LINE_SIZE 512
-+
-+/* Backup Region, First 1M of System RAM. */
-+#define BACKUP_SRC_START 0x00000000
-+#define BACKUP_SRC_END 0x000fffff
-+#define BACKUP_SRC_SIZE (BACKUP_SRC_END - BACKUP_SRC_START + 1)
-+
-+#endif /* CRASHDUMP_MIPS_H */
---- a/kexec/arch/mips/include/arch/options.h
-+++ b/kexec/arch/mips/include/arch/options.h
-@@ -2,10 +2,21 @@
- #define KEXEC_ARCH_MIPS_OPTIONS_H
-
- #define OPT_ARCH_MAX (OPT_MAX+0)
-+#define KEXEC_ARCH_OPT_STR KEXEC_OPT_STR ""
-
-+#ifdef __mips64
-+#define OPT_ELF64_CORE (OPT_MAX+1)
- #define KEXEC_ARCH_OPTIONS \
- KEXEC_OPTIONS \
-+ { "elf64-core-headers", 0, 0, OPT_ELF64_CORE }, \
-
- #define KEXEC_ARCH_OPT_STR KEXEC_OPT_STR ""
-+#define OPT_ARCH_MAX (OPT_MAX+2)
-+#else
-+#define KEXEC_ARCH_OPTIONS \
-+ KEXEC_OPTIONS \
-+
-+#define OPT_ARCH_MAX (OPT_MAX+0)
-+#endif
-
- #endif /* KEXEC_ARCH_MIPS_OPTIONS_H */
---- a/kexec/arch/mips/kexec-elf-mips.c
-+++ b/kexec/arch/mips/kexec-elf-mips.c
-@@ -25,51 +25,18 @@
- #include <ip_checksum.h>
- #include "../../kexec.h"
- #include "../../kexec-elf.h"
-+#include "../../kexec-syscall.h"
- #include "kexec-mips.h"
- #include <arch/options.h>
-+#include "crashdump-mips.h"
-
- static const int probe_debug = 0;
-
- #define BOOTLOADER "kexec"
- #define MAX_COMMAND_LINE 256
-
--#define UPSZ(X) ((sizeof(X) + 3) & ~3)
--static struct boot_notes {
-- Elf_Bhdr hdr;
-- Elf_Nhdr bl_hdr;
-- unsigned char bl_desc[UPSZ(BOOTLOADER)];
-- Elf_Nhdr blv_hdr;
-- unsigned char blv_desc[UPSZ(BOOTLOADER_VERSION)];
-- Elf_Nhdr cmd_hdr;
-- unsigned char command_line[0];
--} elf_boot_notes = {
-- .hdr = {
-- .b_signature = 0x0E1FB007,
-- .b_size = sizeof(elf_boot_notes),
-- .b_checksum = 0,
-- .b_records = 3,
-- },
-- .bl_hdr = {
-- .n_namesz = 0,
-- .n_descsz = sizeof(BOOTLOADER),
-- .n_type = EBN_BOOTLOADER_NAME,
-- },
-- .bl_desc = BOOTLOADER,
-- .blv_hdr = {
-- .n_namesz = 0,
-- .n_descsz = sizeof(BOOTLOADER_VERSION),
-- .n_type = EBN_BOOTLOADER_VERSION,
-- },
-- .blv_desc = BOOTLOADER_VERSION,
-- .cmd_hdr = {
-- .n_namesz = 0,
-- .n_descsz = 0,
-- .n_type = EBN_COMMAND_LINE,
-- },
--};
--
--
--#define OPT_APPEND (OPT_ARCH_MAX+0)
-+/* 'kexec' in cmdline is used to find cmdline buffer by kernel */
-+static char cmdline_buf[256] = "kexec ";
-
- int elf_mips_probe(const char *buf, off_t len)
- {
-@@ -108,16 +75,14 @@ int elf_mips_load(int argc, char **argv,
- struct kexec_info *info)
- {
- struct mem_ehdr ehdr;
-- char *arg_buf;
-- size_t arg_bytes;
-- unsigned long arg_base;
-- struct boot_notes *notes;
-- size_t note_bytes;
-- const char *command_line;
-- int command_line_len;
-- unsigned char *setup_start;
-- uint32_t setup_size;
-+ unsigned long bss_start, bss_size = 0;
-+ const char *command_line = NULL;
-+ char *modified_cmdline;
-+ int modified_cmdline_len;
-+ unsigned long cmdline_addr;
-+ int result,i;
- int opt;
-+#define OPT_APPEND (OPT_ARCH_MAX+0)
- static const struct option options[] = {
- KEXEC_ARCH_OPTIONS
- {"command-line", 1, 0, OPT_APPEND},
-@@ -144,38 +109,81 @@ int elf_mips_load(int argc, char **argv,
- break;
- }
- }
-- command_line_len = 0;
-- setup_simple_regs.spr9 = 0;
-- if (command_line) {
-- command_line_len = strlen(command_line) + 1;
-- setup_simple_regs.spr9 = 2;
-+ /* Need to append some command line parameters internally in case of
-+ * taking crash dumps.
-+ */
-+ if (info->kexec_flags & KEXEC_ON_CRASH) {
-+ modified_cmdline = xmalloc(COMMAND_LINE_SIZE);
-+ memset((void *)modified_cmdline, 0, COMMAND_LINE_SIZE);
-+ if (command_line) {
-+ strncpy(modified_cmdline, command_line, COMMAND_LINE_SIZE);
-+ modified_cmdline[COMMAND_LINE_SIZE - 1] = '\0';
-+ }
-+ modified_cmdline_len = strlen(modified_cmdline);
- }
-
-- /* Load the ELF executable */
-- elf_exec_build_load(info, &ehdr, buf, len, 0);
--
-- setup_start = setup_simple_start;
-- setup_size = setup_simple_size;
-- setup_simple_regs.spr8 = ehdr.e_entry;
--
-- note_bytes = sizeof(elf_boot_notes) + ((command_line_len + 3) & ~3);
-- arg_bytes = note_bytes + ((setup_size + 3) & ~3);
--
-- arg_buf = xmalloc(arg_bytes);
-- arg_base = add_buffer_virt(info,
-- arg_buf, arg_bytes, arg_bytes, 4, 0, elf_max_addr(&ehdr), 1);
-+ /* Parse the Elf file */
-+ result = build_elf_exec_info(buf, len, &ehdr, 0);
-+ if (result < 0) {
-+ die("ELF exec parse failed\n");
-+ }
-
-- notes = (struct boot_notes *)(arg_buf + ((setup_size + 3) & ~3));
-+ /* Read in the PT_LOAD segments and remove CKSEG0 mask from address*/
-+ for(i = 0; i < ehdr.e_phnum; i++) {
-+ struct mem_phdr *phdr;
-+ phdr = &ehdr.e_phdr[i];
-+ if (phdr->p_type == PT_LOAD) {
-+ phdr->p_paddr = virt_to_phys(phdr->p_paddr);
-+ }
-+ }
-
-- memcpy(arg_buf, setup_start, setup_size);
-- memcpy(notes, &elf_boot_notes, sizeof(elf_boot_notes));
-- memcpy(notes->command_line, command_line, command_line_len);
-+ for(i = 0; i < ehdr.e_shnum; i++) {
-+ struct mem_shdr *shdr;
-+ unsigned char *strtab;
-+ strtab = (unsigned char *)ehdr.e_shdr[ehdr.e_shstrndx].sh_data;
-+
-+ shdr = &ehdr.e_shdr[i];
-+ if ( shdr->sh_size &&
-+ strcmp((char *)&strtab[shdr->sh_name],
-+ ".bss") == 0) {
-+ bss_start = virt_to_phys(shdr->sh_addr);
-+ bss_size = shdr->sh_size;
-+ break;
-+ }
-+ }
-
-- notes->hdr.b_size = note_bytes;
-- notes->cmd_hdr.n_descsz = command_line_len;
-- notes->hdr.b_checksum = compute_ip_checksum(notes, note_bytes);
-+ /* Load the Elf data */
-+ result = elf_exec_load(&ehdr, info);
-+ if (result < 0) {
-+ die("ELF exec load failed\n");
-+ }
-+ info->entry = (void *)virt_to_phys(ehdr.e_entry);
-+ if(!bss_size)
-+ die("No .bss segment present\n");
-+
-+ /* Put cmdline right after bss */
-+ cmdline_addr = bss_start + bss_size;
-+
-+ /* If panic kernel is being loaded, additional segments need
-+ * to be created.
-+ */
-+ if (info->kexec_flags & KEXEC_ON_CRASH) {
-+ result = load_crashdump_segments(info, modified_cmdline,
-+ 0, 0);
-+ if (result < 0)
-+ return -1;
-+ /* Use new command line. */
-+ command_line = modified_cmdline;
-+ }
-
-- info->entry = (void *)arg_base;
-+ if (command_line)
-+ {
-+ strncat(cmdline_buf,command_line,
-+ sizeof(cmdline_buf) - strlen(cmdline_buf) - 1);
-+ add_buffer(info, cmdline_buf, sizeof(cmdline_buf),
-+ sizeof(cmdline_buf), sizeof(void*),
-+ cmdline_addr, 0x0fffffff, 1);
-+ }
-
- return 0;
- }
---- a/kexec/arch/mips/kexec-mips.c
-+++ b/kexec/arch/mips/kexec-mips.c
-@@ -97,8 +97,18 @@ int file_types = sizeof(file_type) / siz
-
- void arch_usage(void)
- {
-+#ifdef __mips64
-+ fprintf(stderr, " --elf32-core-headers Prepare core headers in "
-+ "ELF32 format\n");
-+#endif
- }
-
-+#ifdef __mips64
-+struct arch_options_t arch_options = {
-+ .core_header_type = CORE_TYPE_ELF64
-+};
-+#endif
-+
- int arch_process_options(int argc, char **argv)
- {
- static const struct option options[] = {
-@@ -113,6 +123,11 @@ int arch_process_options(int argc, char
- switch(opt) {
- default:
- break;
-+#ifdef __mips64
-+ case OPT_ELF64_CORE:
-+ arch_options.core_header_type = CORE_TYPE_ELF64;
-+ break;
-+#endif
- }
- }
- /* Reset getopt for the next pass; called in other source modules */
-@@ -126,6 +141,10 @@ const struct arch_map_entry arches[] = {
- * use KEXEC_ARCH_DEFAULT instead of KEXEC_ARCH_MIPS here.
- */
- { "mips", KEXEC_ARCH_DEFAULT },
-+ /* Not using KEXEC_ARCH_DEFAULT because that will fail
-+ * in the kernel's compat_sys_kexec_load() routine.
-+ */
-+ { "mips64", KEXEC_ARCH_MIPS },
- { 0 },
- };
-
-@@ -138,18 +157,9 @@ void arch_update_purgatory(struct kexec_
- {
- }
-
--/*
-- * Adding a dummy function, so that build on mips will not break.
-- * Need to implement the actual checking code
-- */
--int is_crashkernel_mem_reserved(void)
--{
-- return 1;
--}
--
- unsigned long virt_to_phys(unsigned long addr)
- {
-- return addr - 0x80000000;
-+ return ((addr)& 0x7fffffff);
- }
-
- /*
---- a/kexec/arch/mips/kexec-mips.h
-+++ b/kexec/arch/mips/kexec-mips.h
-@@ -1,17 +1,16 @@
- #ifndef KEXEC_MIPS_H
- #define KEXEC_MIPS_H
-
--extern unsigned char setup_simple_start[];
--extern uint32_t setup_simple_size;
--
--extern struct {
-- uint32_t spr8;
-- uint32_t spr9;
--} setup_simple_regs;
-+#define MAX_MEMORY_RANGES 64
-+#define CORE_TYPE_ELF32 1
-+#define CORE_TYPE_ELF64 2
-
- int elf_mips_probe(const char *buf, off_t len);
- int elf_mips_load(int argc, char **argv, const char *buf, off_t len,
- struct kexec_info *info);
- void elf_mips_usage(void);
-
-+struct arch_options_t {
-+ int core_header_type;
-+};
- #endif /* KEXEC_MIPS_H */
projects / openwrt.git / commitdiff