This patch is against kexec-tools-1.101 with kdump10 patch.
This patch reserve efi memmap and boot param area for the first kernel
so that they will not be overlapped.
Signed-off-by: Zou Nan hai <nanhai.zou@xxxxxxxxx>
diff -Nraup kexec-tools-1.101/kexec/arch/ia64/kexec-ia64.c kexec-tools-1.101-ia64-kdump/kexec/arch/ia64/kexec-ia64.c
--- kexec-tools-1.101/kexec/arch/ia64/kexec-ia64.c 2006-08-15 06:08:39.000000000 +0800
+++ kexec-tools-1.101-ia64-kdump/kexec/arch/ia64/kexec-ia64.c 2006-08-15 09:45:20.000000000 +0800
@@ -36,6 +36,38 @@
static struct memory_range memory_range[MAX_MEMORY_RANGES];
+/* Reserve range for EFI memmap and Boot parameter */
+static int split_range(int range, unsigned long start, unsigned long end)
+{
+ unsigned long ram_end = memory_range[range - 1].end;
+ unsigned int type = memory_range[range - 1].type;
+ int i;
+ //align end and start to page size of EFI
+ start = start & ~((1UL<<12) - 1);
+ end = (end + (1UL<<12) - 1)& ~((1UL<<12) - 1);
+ for (i = 0; i < range; i++)
+ if(memory_range[i].start <= start && memory_range[i].end >=end)
+ break;
+ if (i >= range)
+ return range;
+ range = i;
+ if (memory_range[range].start < start) {
+ memory_range[range].end = start;
+ range++;
+ }
+ memory_range[range].start = start;
+ memory_range[range].end = end;
+ memory_range[range].type = RANGE_RESERVED;
+ range++;
+ if (end < ram_end) {
+ memory_range[range].start = end;
+ memory_range[range].end = ram_end;
+ memory_range[range].type = type;
+ range++;
+ }
+ return range;
+}
+
/* Return a sorted list of available memory ranges. */
int get_memory_ranges(struct memory_range **range, int *ranges,
unsigned long kexec_flags)
@@ -85,6 +117,12 @@ int get_memory_ranges(struct memory_rang
mem_max = end;
}
continue;
+ } else if (memcmp(str, "Boot parameter\n", 14) == 0) {
+ memory_ranges = split_range(memory_ranges, start, end);
+ continue;
+ } else if (memcmp(str, "EFI Memory Map\n", 14) == 0) {
+ memory_ranges = split_range(memory_ranges, start, end);
+ continue;
} else
continue;
/*
@@ -125,7 +163,7 @@ int arch_process_options(int argc, char
{
static const struct option options[] = {
KEXEC_ARCH_OPTIONS
- { 0, 0, NULL, 0 },
+ { 0, 0, NULL, 0 },
};
static const char short_options[] = KEXEC_ARCH_OPT_STR;
int opt;
-
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