Once the kimage is prepared the only way to identify which kexec segment
holds FDT is by looping through all kexec segments. To avoid this a new
member "fdt_index" is added to kimage_arch struct. The new member holds
the index of FDT segment in the kexec segment array which gives direct
access to FDT segment.
The fdt_index will be populated during kexec load for both kexec_load
and kexec_file_load case.
Signed-off-by: Sourabh Jain <sourabhjain@xxxxxxxxxxxxx>
---
arch/powerpc/include/asm/kexec.h | 3 +++
1 file changed, 3 insertions(+)
diff --git a/arch/powerpc/include/asm/kexec.h b/arch/powerpc/include/asm/kexec.h
index c8040c93b15a..9489e5ca93fb 100644
--- a/arch/powerpc/include/asm/kexec.h
+++ b/arch/powerpc/include/asm/kexec.h
@@ -106,6 +106,9 @@ extern const struct kexec_file_ops kexec_elf64_ops;
struct kimage_arch {
struct crash_mem *exclude_ranges;
+#if defined(CONFIG_HOTPLUG_CPU)
+ int fdt_index;
+#endif
unsigned long backup_start;
void *backup_buf;
void *fdt;
--
2.36.1
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