kexec_file: add kexec_file flag to support debug printing

Resolves: https://issues.redhat.com/browse/RHEL-35640
Upstream Status: git://git.kernel.org/pub/scm/utils/kernel/kexec/kexec-tools.git
Conflict: None

commit 9d9cf8de8b2ad8273861a30476a46f34cd34871a
Author: Baoquan He <bhe@redhat.com>
Date:   Tue Nov 14 23:20:30 2023 +0800

    kexec_file: add kexec_file flag to support debug printing

    This add KEXEC_FILE_DEBUG to kexec_file_flags so that it can be passed
    to kernel when '-d' is added with kexec_file_load interface. With that
    flag enabled, kernel can enable the debugging message printing.

    Signed-off-by: Baoquan He <bhe@redhat.com>
    Signed-off-by: Simon Horman <horms@kernel.org>

Signed-off-by: Baoquan He <bhe@redhat.com>

kexec-tools.spec

@@ -114,6 +114,7 @@ Requires:       systemd-udev%{?_isa}
 # Patches 601 onward are generic patches
 #
 Patch601: kexec-update-manpage-with-explicit-mention-of-clean-.patch
+Patch602: kexec_file-add-kexec_file-flag-to-support-debug-prin.patch
 
 %description
 kexec-tools provides /sbin/kexec binary that facilitates a new
@@ -130,6 +131,7 @@ tar -z -x -v -f %{SOURCE9}
 tar -z -x -v -f %{SOURCE19}
 
 %patch601 -p1
+%patch602 -p1
 
 %ifarch ppc
 %define archdef ARCH=ppc

kexec_file-add-kexec_file-flag-to-support-debug-prin.patch

@@ -0,0 +1,44 @@
+From 9d9cf8de8b2ad8273861a30476a46f34cd34871a Mon Sep 17 00:00:00 2001
+From: Baoquan He <bhe@redhat.com>
+Date: Tue, 14 Nov 2023 23:20:30 +0800
+Subject: [PATCH] kexec_file: add kexec_file flag to support debug printing
+Content-type: text/plain
+
+This add KEXEC_FILE_DEBUG to kexec_file_flags so that it can be passed
+to kernel when '-d' is added with kexec_file_load interface. With that
+flag enabled, kernel can enable the debugging message printing.
+
+Signed-off-by: Baoquan He <bhe@redhat.com>
+Signed-off-by: Simon Horman <horms@kernel.org>
+---
+ kexec/kexec-syscall.h | 1 +
+ kexec/kexec.c         | 1 +
+ 2 files changed, 2 insertions(+)
+
+diff --git a/kexec/kexec-syscall.h b/kexec/kexec-syscall.h
+index 2559bffb93da..73e52543e1b0 100644
+--- a/kexec/kexec-syscall.h
++++ b/kexec/kexec-syscall.h
+@@ -119,6 +119,7 @@ static inline long kexec_file_load(int kernel_fd, int initrd_fd,
+ #define KEXEC_FILE_UNLOAD	0x00000001
+ #define KEXEC_FILE_ON_CRASH	0x00000002
+ #define KEXEC_FILE_NO_INITRAMFS	0x00000004
++#define KEXEC_FILE_DEBUG	0x00000008
+ 
+ /* These values match the ELF architecture values. 
+  * Unless there is a good reason that should continue to be the case.
+diff --git a/kexec/kexec.c b/kexec/kexec.c
+index 9d0ec46e5657..222f79e3112e 100644
+--- a/kexec/kexec.c
++++ b/kexec/kexec.c
+@@ -1477,6 +1477,7 @@ int main(int argc, char *argv[])
+ 			return 0;
+ 		case OPT_DEBUG:
+ 			kexec_debug = 1;
++			kexec_file_flags |= KEXEC_FILE_DEBUG;
+ 			break;
+ 		case OPT_NOIFDOWN:
+ 			skip_ifdown = 1;
+-- 
+2.41.0
+