make a clone of ia64_boot_param area to the crash kernel.
without this patch, crash tool will not able to analyze efi memmap of
first kernel from vmcore file.
This patch is against kexec-tools-1.101 with kdump10 patch.
Signed-off-by: Zou Nan hai <nanhai.zou@xxxxxxxxx>
diff -Nraup kexec-tools-1.101/kexec/arch/ia64/kexec-elf-ia64.c kexec-tools-1.101-fix/kexec/arch/ia64/kexec-elf-ia64.c
--- kexec-tools-1.101/kexec/arch/ia64/kexec-elf-ia64.c 2006-08-05 07:32:19.000000000 +0800
+++ kexec-tools-1.101-fix/kexec/arch/ia64/kexec-elf-ia64.c 2006-08-05 07:36:49.000000000 +0800
@@ -115,9 +115,10 @@ int elf_ia64_load(int argc, char **argv,
unsigned long entry, max_addr, gp_value;
unsigned long command_line_base, ramdisk_base;
unsigned long efi_memmap_base, efi_memmap_size;
+ unsigned long boot_param_base;
int result;
int opt;
- char *efi_memmap_buf;
+ char *efi_memmap_buf, *boot_param;
#define OPT_APPEND (OPT_ARCH_MAX+0)
#define OPT_RAMDISK (OPT_ARCH_MAX+1)
static const struct option options[] = {
@@ -191,6 +192,13 @@ int elf_ia64_load(int argc, char **argv,
&command_line) < 0)
return -1;
+ // reverve 4k for ia64_boot_param
+ boot_param = xmalloc(4096);
+ boot_param_base = add_buffer(info, boot_param, 4096, 4096, 4096, 0,
+ max_addr, -1);
+ elf_rel_set_symbol(&info->rhdr, "__boot_param_base",
+ &boot_param_base, sizeof(long));
+
// reserve 8k for efi_memmap
efi_memmap_size = 1UL<<14;
efi_memmap_buf = xmalloc(efi_memmap_size);
diff -Nraup kexec-tools-1.101/purgatory/arch/ia64/entry.S kexec-tools-1.101-fix/purgatory/arch/ia64/entry.S
--- kexec-tools-1.101/purgatory/arch/ia64/entry.S 2006-08-05 07:32:19.000000000 +0800
+++ kexec-tools-1.101-fix/purgatory/arch/ia64/entry.S 2006-08-05 07:37:31.000000000 +0800
@@ -46,6 +46,8 @@ purgatory_start:
br.call.sptk.many b0=ia64_env_setup
movl r10=__kernel_entry;;
ld8 r14=[r10];;
+ movl r10=__boot_param_base;;
+ ld8 r28=[r10];;
mov b6=r14;;
mov ar.lc=r0
mov ar.ec=r0
@@ -61,6 +63,7 @@ DECLARE_DATA8(__command_line)
DECLARE_DATA8(__command_line_len)
DECLARE_DATA8(__efi_memmap_base)
DECLARE_DATA8(__efi_memmap_size)
+DECLARE_DATA8(__boot_param_base)
DECLARE_DATA8(__loaded_segments)
DECLARE_DATA8(__loaded_segments_num)
diff -Nraup kexec-tools-1.101/purgatory/arch/ia64/purgatory-ia64.c kexec-tools-1.101-fix/purgatory/arch/ia64/purgatory-ia64.c
--- kexec-tools-1.101/purgatory/arch/ia64/purgatory-ia64.c 2006-08-05 07:32:19.000000000 +0800
+++ kexec-tools-1.101-fix/purgatory/arch/ia64/purgatory-ia64.c 2006-08-05 07:37:22.000000000 +0800
@@ -123,11 +123,12 @@ struct kexec_boot_params {
uint64_t command_line_len;
uint64_t efi_memmap_base;
uint64_t efi_memmap_size;
+ uint64_t boot_param_base;
struct loaded_segment *loaded_segments;
unsigned long loaded_segments_num;
};
-void
+void
setup_arch(void)
{
reset_vga();
@@ -138,11 +139,11 @@ inline unsigned long PA(unsigned long ad
return addr - PAGE_OFFSET;
}
-void
-patch_efi_memmap(struct kexec_boot_params *params,
+void
+patch_efi_memmap(struct kexec_boot_params *params,
struct ia64_boot_param *boot_param)
{
- void *dest = (void *)params->efi_memmap_base;
+ void *dest = (void *)params->efi_memmap_base;
void *src = (void *)boot_param->efi_memmap;
unsigned long len = boot_param->efi_memmap_size;
unsigned long memdesc_size = boot_param->efi_memdesc_size;
@@ -150,15 +151,15 @@ patch_efi_memmap(struct kexec_boot_param
efi_memory_desc_t *md1, *md2;
void *p1, *p2, *src_end = src + len;
int i;
- for (p1 = src, p2 = dest; p1 < src_end;
+ for (p1 = src, p2 = dest; p1 < src_end;
p1 += memdesc_size, p2 += memdesc_size) {
unsigned long mstart, mend;
md1 = p1;
md2 = p2;
- if (md1->num_pages == 0)
+ if (md1->num_pages == 0)
continue;
mstart = md1->phys_addr;
- mend = md1->phys_addr + (md1->num_pages
+ mend = md1->phys_addr + (md1->num_pages
<< EFI_PAGE_SHIFT);
switch (md1->type) {
case EFI_LOADER_DATA:
@@ -168,7 +169,7 @@ patch_efi_memmap(struct kexec_boot_param
default:
*md2 = *md1;
}
- // segments are already sorted and aligned to 4K
+ // segments are already sorted and aligned to 4K
orig_type = md2->type;
for (i = 0; i < params->loaded_segments_num; i++) {
struct loaded_segment *seg;
@@ -177,50 +178,50 @@ patch_efi_memmap(struct kexec_boot_param
unsigned long start_pages, mid_pages, end_pages;
if (seg->end > mend) {
p1 += memdesc_size;
- for(; p1 < src_end;
+ for(; p1 < src_end;
p1 += memdesc_size) {
md1 = p1;
/* TODO check contig and attribute here */
- mend = md1->phys_addr
+ mend = md1->phys_addr
+ (md1->num_pages << EFI_PAGE_SHIFT);
if (seg->end < mend)
break;
}
}
- start_pages = (seg->start - mstart)
+ start_pages = (seg->start - mstart)
>> EFI_PAGE_SHIFT;
mid_pages = (seg->end - seg->start)
>> EFI_PAGE_SHIFT;
- end_pages = (mend - seg->end)
+ end_pages = (mend - seg->end)
>> EFI_PAGE_SHIFT;
if (start_pages) {
md2->num_pages = start_pages;
- p2 += memdesc_size;
+ p2 += memdesc_size;
md2 = p2;
*md2 = *md1;
}
md2->phys_addr = seg->start;
md2->num_pages = mid_pages;
- md2->type = seg->reserved ?
+ md2->type = seg->reserved ?
EFI_UNUSABLE_MEMORY:EFI_LOADER_DATA;
if (end_pages) {
- p2 += memdesc_size;
+ p2 += memdesc_size;
md2 = p2;
*md2 = *md1;
md2->phys_addr = seg->end;
md2->num_pages = end_pages;
md2->type = orig_type;
mstart = seg->end;
- } else
+ } else
break;
}
}
}
-
+
boot_param->efi_memmap_size = p2 - dest;
}
-void
+void
flush_icache_range(char *start, unsigned long len)
{
unsigned long i;
@@ -233,7 +234,7 @@ flush_icache_range(char *start, unsigned
extern char __dummy_efi_function[], __dummy_efi_function_end[];
-void
+void
ia64_env_setup(struct ia64_boot_param *boot_param,
struct kexec_boot_params *params)
{
@@ -243,13 +244,15 @@ ia64_env_setup(struct ia64_boot_param *b
unsigned long *set_virtual_address_map;
char *command_line = (char *)params->command_line;
uint64_t command_line_len = params->command_line_len;
-
+ struct ia64_boot_param *new_boot_param =
+ (struct ia64_boot_param *) params->boot_param_base;
+ memcpy(new_boot_param, boot_param, 4096);
// patch efi_runtime->set_virtual_address_map to a
// dummy function
len = __dummy_efi_function_end - __dummy_efi_function;
- memcpy(command_line + command_line_len,
+ memcpy(command_line + command_line_len,
__dummy_efi_function, len);
- systab = (efi_system_table_t *)boot_param->efi_systab;
+ systab = (efi_system_table_t *)new_boot_param->efi_systab;
runtime = (efi_runtime_services_t *)PA(systab->runtime);
set_virtual_address_map =
(unsigned long *)PA(runtime->set_virtual_address_map);
@@ -257,15 +260,14 @@ ia64_env_setup(struct ia64_boot_param *b
(unsigned long)(command_line + command_line_len);
flush_icache_range(command_line + command_line_len, len);
- patch_efi_memmap(params, boot_param);
-
- boot_param->efi_memmap = params->efi_memmap_base;
+ patch_efi_memmap(params, new_boot_param);
- boot_param->command_line = params->command_line;
- boot_param->console_info.orig_x = 0;
- boot_param->console_info.orig_y = 0;
- boot_param->initrd_start = params->ramdisk_base;
- boot_param->initrd_size = params->ramdisk_size;
+ new_boot_param->efi_memmap = params->efi_memmap_base;
+ new_boot_param->command_line = params->command_line;
+ new_boot_param->console_info.orig_x = 0;
+ new_boot_param->console_info.orig_y = 0;
+ new_boot_param->initrd_start = params->ramdisk_base;
+ new_boot_param->initrd_size = params->ramdisk_size;
}
/* This function can be used to execute after the SHA256 verification. */
-
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