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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-08-07 13:11:40 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-08-07 13:11:40 +0000
commit8b0a8165cdad0f4133837d753649ef4682e42c3b (patch)
tree5c58f869f31ddb1f7bd6e8bdea269b680b36c5b6 /kernel/kexec.c
parentReleasing progress-linux version 6.8.12-1~progress7.99u1. (diff)
downloadlinux-8b0a8165cdad0f4133837d753649ef4682e42c3b.tar.xz
linux-8b0a8165cdad0f4133837d753649ef4682e42c3b.zip
Merging upstream version 6.9.7.
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'kernel/kexec.c')
-rw-r--r--kernel/kexec.c11
1 files changed, 9 insertions, 2 deletions
diff --git a/kernel/kexec.c b/kernel/kexec.c
index 8f35a5a42a..bab542fc14 100644
--- a/kernel/kexec.c
+++ b/kernel/kexec.c
@@ -28,12 +28,14 @@ static int kimage_alloc_init(struct kimage **rimage, unsigned long entry,
struct kimage *image;
bool kexec_on_panic = flags & KEXEC_ON_CRASH;
+#ifdef CONFIG_CRASH_DUMP
if (kexec_on_panic) {
/* Verify we have a valid entry point */
if ((entry < phys_to_boot_phys(crashk_res.start)) ||
(entry > phys_to_boot_phys(crashk_res.end)))
return -EADDRNOTAVAIL;
}
+#endif
/* Allocate and initialize a controlling structure */
image = do_kimage_alloc_init();
@@ -44,11 +46,13 @@ static int kimage_alloc_init(struct kimage **rimage, unsigned long entry,
image->nr_segments = nr_segments;
memcpy(image->segment, segments, nr_segments * sizeof(*segments));
+#ifdef CONFIG_CRASH_DUMP
if (kexec_on_panic) {
/* Enable special crash kernel control page alloc policy. */
image->control_page = crashk_res.start;
image->type = KEXEC_TYPE_CRASH;
}
+#endif
ret = sanity_check_segment_list(image);
if (ret)
@@ -99,13 +103,14 @@ static int do_kexec_load(unsigned long entry, unsigned long nr_segments,
if (!kexec_trylock())
return -EBUSY;
+#ifdef CONFIG_CRASH_DUMP
if (flags & KEXEC_ON_CRASH) {
dest_image = &kexec_crash_image;
if (kexec_crash_image)
arch_kexec_unprotect_crashkres();
- } else {
+ } else
+#endif
dest_image = &kexec_image;
- }
if (nr_segments == 0) {
/* Uninstall image */
@@ -162,8 +167,10 @@ static int do_kexec_load(unsigned long entry, unsigned long nr_segments,
image = xchg(dest_image, image);
out:
+#ifdef CONFIG_CRASH_DUMP
if ((flags & KEXEC_ON_CRASH) && kexec_crash_image)
arch_kexec_protect_crashkres();
+#endif
kimage_free(image);
out_unlock: