[PATCH v4 05/11] crashdump/m68k: Add get_crash_kernel_load_range() function

Eric DeVolder eric.devolder at oracle.com
Tue Feb 14 13:09:17 PST 2017

From: Daniel Kiper <daniel.kiper at oracle.com>

Provide stub get_crash_kernel_load_range() in support of
print crash kernel region size option.

Signed-off-by: Daniel Kiper <daniel.kiper at oracle.com>
Signed-off-by: Eric DeVolder <eric.devolder at oracle.com>
Reviewed-by: Daniel Kiper <daniel.kiper at oracle.com>
v4: Incorporated feedback:
    - Changed commit description to make it clear that
      get_crash_kernel_load_range() is a stub
v3: Incorporated feedback:
    - changes for coding convention and formatting
    - restructured to introduce get_crash_kernel_load_range() for each
      architecture, and then a single function in kexec/kexec.c to call
      the per-architecture get_crash_kernel_load_range() and print the
v2: Incorporated feedback:
    - unsupported architectures, print appropriate message
v1: Posted to kexec-tools mailing list
 kexec/arch/m68k/kexec-m68k.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/kexec/arch/m68k/kexec-m68k.c b/kexec/arch/m68k/kexec-m68k.c
index 372aa37..cb54927 100644
--- a/kexec/arch/m68k/kexec-m68k.c
+++ b/kexec/arch/m68k/kexec-m68k.c
@@ -89,6 +89,12 @@ int is_crashkernel_mem_reserved(void)
 	return 0;
+int get_crash_kernel_load_range(uint64_t *start, uint64_t *end)
+	/* Crash kernel region size is not exposed by the system */
+	return -1;
 unsigned long virt_to_phys(unsigned long addr)
 	return addr + m68k_memoffset;

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