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-rw-r--r--package/kexec-tools/patches/0005-mips64_support.patch732
1 files changed, 732 insertions, 0 deletions
diff --git a/package/kexec-tools/patches/0005-mips64_support.patch b/package/kexec-tools/patches/0005-mips64_support.patch
new file mode 100644
index 0000000000..6b53eace4c
--- /dev/null
+++ b/package/kexec-tools/patches/0005-mips64_support.patch
@@ -0,0 +1,732 @@
+Index: kexec-tools-2.0.1/kexec/arch/mips/Makefile
+===================================================================
+--- kexec-tools-2.0.1.orig/kexec/arch/mips/Makefile 2008-07-15 02:46:43.000000000 +0200
++++ kexec-tools-2.0.1/kexec/arch/mips/Makefile 2009-09-27 19:07:26.000000000 +0200
+@@ -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 =
+Index: kexec-tools-2.0.1/kexec/arch/mips/crashdump-mips.c
+===================================================================
+--- /dev/null 1970-01-01 00:00:00.000000000 +0000
++++ kexec-tools-2.0.1/kexec/arch/mips/crashdump-mips.c 2009-09-27 19:07:26.000000000 +0200
+@@ -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;
++}
++
+Index: kexec-tools-2.0.1/kexec/arch/mips/crashdump-mips.h
+===================================================================
+--- /dev/null 1970-01-01 00:00:00.000000000 +0000
++++ kexec-tools-2.0.1/kexec/arch/mips/crashdump-mips.h 2009-09-27 19:07:26.000000000 +0200
+@@ -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 */
+Index: kexec-tools-2.0.1/kexec/arch/mips/include/arch/options.h
+===================================================================
+--- kexec-tools-2.0.1.orig/kexec/arch/mips/include/arch/options.h 2008-07-15 02:46:43.000000000 +0200
++++ kexec-tools-2.0.1/kexec/arch/mips/include/arch/options.h 2009-09-27 19:18:21.000000000 +0200
+@@ -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 */
+Index: kexec-tools-2.0.1/kexec/arch/mips/kexec-elf-mips.c
+===================================================================
+--- kexec-tools-2.0.1.orig/kexec/arch/mips/kexec-elf-mips.c 2008-07-15 02:46:43.000000000 +0200
++++ kexec-tools-2.0.1/kexec/arch/mips/kexec-elf-mips.c 2009-09-27 19:16:39.000000000 +0200
+@@ -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 @@
+ 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 @@
+ 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;
+ }
+Index: kexec-tools-2.0.1/kexec/arch/mips/kexec-mips.c
+===================================================================
+--- kexec-tools-2.0.1.orig/kexec/arch/mips/kexec-mips.c 2008-07-15 02:46:43.000000000 +0200
++++ kexec-tools-2.0.1/kexec/arch/mips/kexec-mips.c 2009-09-27 19:20:25.000000000 +0200
+@@ -97,8 +97,18 @@
+
+ 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 @@
+ 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 @@
+ * 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 @@
+ {
+ }
+
+-/*
+- * 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);
+ }
+
+ /*
+Index: kexec-tools-2.0.1/kexec/arch/mips/kexec-mips.h
+===================================================================
+--- kexec-tools-2.0.1.orig/kexec/arch/mips/kexec-mips.h 2008-07-15 02:46:43.000000000 +0200
++++ kexec-tools-2.0.1/kexec/arch/mips/kexec-mips.h 2009-09-27 19:21:32.000000000 +0200
+@@ -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 */
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-06 20:28:41 +0000