[kexec-tools,v2,30/32] arm: fix type of phys_offset

Commit Message

Russell King June 6, 2016, 5:01 p.m. UTC

Some LPAE systems may have phys_offset above the 4GB mark.  Hence, we
need phys_offset to be a 64-bit integer.

Reviewed-by: Pratyush Anand <[e-mail]>
Signed-off-by: Russell King <[e-mail]>
---
 kexec/arch/arm/crashdump-arm.c | 4 ++--
 kexec/arch/arm/crashdump-arm.h | 1 -
 kexec/arch/arm/phys_to_virt.c  | 4 +++-
 kexec/arch/arm/phys_to_virt.h  | 8 ++++++++
 4 files changed, 13 insertions(+), 4 deletions(-)
 create mode 100644 kexec/arch/arm/phys_to_virt.h

Patch

diff --git a/kexec/arch/arm/crashdump-arm.c b/kexec/arch/arm/crashdump-arm.c
index 2dc8846..2589582 100644
--- a/kexec/arch/arm/crashdump-arm.c
+++ b/kexec/arch/arm/crashdump-arm.c
@@ -33,6 +33,7 @@ 
 #include "../../mem_regions.h"
 #include "crashdump-arm.h"
 #include "iomem.h"
+#include "phys_to_virt.h"
 
 #if __BYTE_ORDER == __LITTLE_ENDIAN
 #define ELFDATANATIVE ELFDATA2LSB
@@ -70,7 +71,6 @@  static struct crash_elf_info elf_info = {
 	.page_offset	= DEFAULT_PAGE_OFFSET,
 };
 
-unsigned long phys_offset;
 extern unsigned long long user_page_offset;
 
 /* Retrieve kernel _stext symbol virtual address from /proc/kallsyms */
@@ -293,7 +293,7 @@  int load_crashdump_segments(struct kexec_info *info, char *mod_cmdline)
 	 * region as PHYS_OFFSET.
 	 */
 	phys_offset = usablemem_rgns.ranges->start;
-	dbgprintf("phys_offset: %#lx\n", phys_offset);
+	dbgprintf("phys_offset: %#llx\n", phys_offset);
 
 	if (get_kernel_page_offset(info, &elf_info))
 		return -1;
diff --git a/kexec/arch/arm/crashdump-arm.h b/kexec/arch/arm/crashdump-arm.h
index 7314960..6e87b13 100644
--- a/kexec/arch/arm/crashdump-arm.h
+++ b/kexec/arch/arm/crashdump-arm.h
@@ -16,7 +16,6 @@  extern struct memory_ranges usablemem_rgns;
 
 struct kexec_info;
 
-extern unsigned long phys_offset;
 extern int load_crashdump_segments(struct kexec_info *, char *);
 
 #ifdef __cplusplus
diff --git a/kexec/arch/arm/phys_to_virt.c b/kexec/arch/arm/phys_to_virt.c
index c2fe2ea..46a4f68 100644
--- a/kexec/arch/arm/phys_to_virt.c
+++ b/kexec/arch/arm/phys_to_virt.c
@@ -1,6 +1,8 @@ 
 #include "../../kexec.h"
 #include "../../crashdump.h"
-#include "crashdump-arm.h"
+#include "phys_to_virt.h"
+
+uint64_t phys_offset;
 
 /**
  * phys_to_virt() - translate physical address to virtual address
diff --git a/kexec/arch/arm/phys_to_virt.h b/kexec/arch/arm/phys_to_virt.h
new file mode 100644
index 0000000..b3147dd
--- /dev/null
+++ b/kexec/arch/arm/phys_to_virt.h
@@ -0,0 +1,8 @@ 
+#ifndef PHYS_TO_VIRT_H
+#define PHYS_TO_VIRT_H
+
+#include <stdint.h>
+
+extern uint64_t phys_offset;
+
+#endif