From 834979c27f5281f37ae9ce5191134f26ae7b9fd0 Mon Sep 17 00:00:00 2001
From: Heiko Carstens <hca@linux.ibm.com>
Date: Wed, 27 Apr 2022 04:14:34 +0200
Subject: s390/boot: convert initial lowcore to C

Convert initial lowcore to C and use proper defines and structures to
initialize it. This should make the z/VM ipl procedure a bit less magic.

Acked-by: Peter Oberparleiter <oberpar@linux.ibm.com>
Reviewed-by: Vasily Gorbik <gor@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
---
 arch/s390/boot/boot.h | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

(limited to 'arch/s390/boot/boot.h')

diff --git a/arch/s390/boot/boot.h b/arch/s390/boot/boot.h
index 641ce0fc5c3e..70418389414d 100644
--- a/arch/s390/boot/boot.h
+++ b/arch/s390/boot/boot.h
@@ -2,9 +2,12 @@
 #ifndef BOOT_BOOT_H
 #define BOOT_BOOT_H
 
-#include <asm/extable.h>
 #include <linux/types.h>
 
+#define IPL_START	0x200
+
+#ifndef __ASSEMBLY__
+
 void startup_kernel(void);
 unsigned long detect_memory(void);
 bool is_ipl_block_dump(void);
@@ -31,4 +34,5 @@ extern char _stack_start[], _stack_end[];
 
 unsigned long read_ipl_report(unsigned long safe_offset);
 
+#endif /* __ASSEMBLY__ */
 #endif /* BOOT_BOOT_H */
-- 
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