On 08/01/25 17:08, Baoquan he wrote:
On 01/08/25 at 03:44pm, Sourabh Jain wrote:
...snip...
diff --git a/include/linux/kexec.h b/include/linux/kexec.h
index f0e9f8eda7a3..407f8b0346aa 100644
--- a/include/linux/kexec.h
+++ b/include/linux/kexec.h
@@ -205,6 +205,15 @@ static inline int
arch_kimage_file_post_load_cleanup(struct kimage *image)
}
#endif
+#ifndef arch_check_excluded_range
+static inline int arch_check_excluded_range(struct kimage *image,
+ unsigned long start,
+ unsigned long end)
+{
+ return 0;
+}
+#endif
+
#ifdef CONFIG_KEXEC_SIG
#ifdef CONFIG_SIGNED_PE_FILE_VERIFICATION
int kexec_kernel_verify_pe_sig(const char *kernel, unsigned long kernel_len);
diff --git a/kernel/kexec_file.c b/kernel/kexec_file.c
index 3eedb8c226ad..52e1480dbfa1 100644
--- a/kernel/kexec_file.c
+++ b/kernel/kexec_file.c
@@ -464,6 +464,12 @@ static int locate_mem_hole_top_down(unsigned long start,
unsigned long end,
continue;
}
+ /* Make sure this does not conflict exclude range */
^
Make sure this doesn't conflict with excluded range?
+ if (arch_check_excluded_range(image, temp_start, temp_end)) {
+ temp_start = temp_start - PAGE_SIZE;
+ continue;
+ }
+
/* We found a suitable memory range */
break;
} while (1);
@@ -498,6 +504,12 @@ static int locate_mem_hole_bottom_up(unsigned long start,
unsigned long end,
continue;
}
+ /* Make sure this does not conflict exclude range */
^
Ditto.
I will update both comments.
Thanks,
Sourabh Jain
