kexec: add machine_kexec_post_load()
It is the same as machine_kexec_prepare(), but is called after segments are
loaded. This way, can do processing work with already loaded relocation
segments. One such example is arm64: it has to have segments loaded in
order to create a page table, but it cannot do it during kexec time,
because at that time allocations won't be possible anymore.
Signed-off-by: Pavel Tatashin <pasha.tatashin@soleen.com>
Acked-by: Dave Young <dyoung@redhat.com>
Signed-off-by: Will Deacon <will@kernel.org>
diff --git a/kernel/kexec_core.c b/kernel/kexec_core.c
index f7ae04b..c19c0da 100644
--- a/kernel/kexec_core.c
+++ b/kernel/kexec_core.c
@@ -589,6 +589,12 @@ static void kimage_free_extra_pages(struct kimage *image)
kimage_free_page_list(&image->unusable_pages);
}
+
+int __weak machine_kexec_post_load(struct kimage *image)
+{
+ return 0;
+}
+
void kimage_terminate(struct kimage *image)
{
if (*image->entry != 0)
