1 files changed, 57 insertions, 45 deletions

diff --git a/arch/ia64/kernel/setup.c b/arch/ia64/kernel/setup.c
index c5cfcfa4c87..ae6c3c02e11 100644
--- a/arch/ia64/kernel/setup.c
+++ b/arch/ia64/kernel/setup.c
@@ -90,7 +90,12 @@ static struct resource code_resource = {
 	.name	= "Kernel code",
 	.flags	= IORESOURCE_BUSY | IORESOURCE_MEM
 };
-extern char _text[], _end[], _etext[];
+
+static struct resource bss_resource = {
+	.name	= "Kernel bss",
+	.flags	= IORESOURCE_BUSY | IORESOURCE_MEM
+};
+extern char _text[], _end[], _etext[], _edata[], _bss[];
 
 unsigned long ia64_max_cacheline_size;
 
@@ -200,14 +205,59 @@ static int __init register_memory(void)
 	code_resource.start = ia64_tpa(_text);
 	code_resource.end   = ia64_tpa(_etext) - 1;
 	data_resource.start = ia64_tpa(_etext);
-	data_resource.end   = ia64_tpa(_end) - 1;
-	efi_initialize_iomem_resources(&code_resource, &data_resource);
+	data_resource.end   = ia64_tpa(_edata) - 1;
+	bss_resource.start  = ia64_tpa(_bss);
+	bss_resource.end    = ia64_tpa(_end) - 1;
+	efi_initialize_iomem_resources(&code_resource, &data_resource,
+			&bss_resource);
 
 	return 0;
 }
 
 __initcall(register_memory);
 
+
+#ifdef CONFIG_KEXEC
+static void __init setup_crashkernel(unsigned long total, int *n)
+{
+	unsigned long long base = 0, size = 0;
+	int ret;
+
+	ret = parse_crashkernel(boot_command_line, total,
+			&size, &base);
+	if (ret == 0 && size > 0) {
+		if (!base) {
+			sort_regions(rsvd_region, *n);
+			base = kdump_find_rsvd_region(size,
+					rsvd_region, *n);
+		}
+		if (base != ~0UL) {
+			printk(KERN_INFO "Reserving %ldMB of memory at %ldMB "
+					"for crashkernel (System RAM: %ldMB)\n",
+					(unsigned long)(size >> 20),
+					(unsigned long)(base >> 20),
+					(unsigned long)(total >> 20));
+			rsvd_region[*n].start =
+				(unsigned long)__va(base);
+			rsvd_region[*n].end =
+				(unsigned long)__va(base + size);
+			(*n)++;
+			crashk_res.start = base;
+			crashk_res.end = base + size - 1;
+		}
+	}
+	efi_memmap_res.start = ia64_boot_param->efi_memmap;
+	efi_memmap_res.end = efi_memmap_res.start +
+		ia64_boot_param->efi_memmap_size;
+	boot_param_res.start = __pa(ia64_boot_param);
+	boot_param_res.end = boot_param_res.start +
+		sizeof(*ia64_boot_param);
+}
+#else
+static inline void __init setup_crashkernel(unsigned long total, int *n)
+{}
+#endif
+
 /**
  * reserve_memory - setup reserved memory areas
  *
@@ -219,6 +269,7 @@ void __init
 reserve_memory (void)
 {
 	int n = 0;
+	unsigned long total_memory;
 
 	/*
 	 * none of the entries in this table overlap
@@ -254,50 +305,11 @@ reserve_memory (void)
 		n++;
 #endif
 
-	efi_memmap_init(&rsvd_region[n].start, &rsvd_region[n].end);
+	total_memory = efi_memmap_init(&rsvd_region[n].start, &rsvd_region[n].end);
 	n++;
 
-#ifdef CONFIG_KEXEC
-	/* crashkernel=size@offset specifies the size to reserve for a crash
-	 * kernel. If offset is 0, then it is determined automatically.
-	 * By reserving this memory we guarantee that linux never set's it
-	 * up as a DMA target.Useful for holding code to do something
-	 * appropriate after a kernel panic.
-	 */
-	{
-		char *from = strstr(boot_command_line, "crashkernel=");
-		unsigned long base, size;
-		if (from) {
-			size = memparse(from + 12, &from);
-			if (*from == '@')
-				base = memparse(from+1, &from);
-			else
-				base = 0;
-			if (size) {
-				if (!base) {
-					sort_regions(rsvd_region, n);
-					base = kdump_find_rsvd_region(size,
-							      	rsvd_region, n);
-					}
-				if (base != ~0UL) {
-					rsvd_region[n].start =
-						(unsigned long)__va(base);
-					rsvd_region[n].end =
-						(unsigned long)__va(base + size);
-					n++;
-					crashk_res.start = base;
-					crashk_res.end = base + size - 1;
-				}
-			}
-		}
-		efi_memmap_res.start = ia64_boot_param->efi_memmap;
-                efi_memmap_res.end = efi_memmap_res.start +
-                        ia64_boot_param->efi_memmap_size;
-                boot_param_res.start = __pa(ia64_boot_param);
-                boot_param_res.end = boot_param_res.start +
-                        sizeof(*ia64_boot_param);
-	}
-#endif
+	setup_crashkernel(total_memory, &n);
+
 	/* end of memory marker */
 	rsvd_region[n].start = ~0UL;
 	rsvd_region[n].end   = ~0UL;