summaryrefslogtreecommitdiff
path: root/arch/s390/include/asm/livepatch.h
diff options
context:
space:
mode:
Diffstat (limited to 'arch/s390/include/asm/livepatch.h')
-rw-r--r--arch/s390/include/asm/livepatch.h43
1 files changed, 43 insertions, 0 deletions
diff --git a/arch/s390/include/asm/livepatch.h b/arch/s390/include/asm/livepatch.h
new file mode 100644
index 000000000..7aa799134
--- /dev/null
+++ b/arch/s390/include/asm/livepatch.h
@@ -0,0 +1,43 @@
+/*
+ * livepatch.h - s390-specific Kernel Live Patching Core
+ *
+ * Copyright (c) 2013-2015 SUSE
+ * Authors: Jiri Kosina
+ * Vojtech Pavlik
+ * Jiri Slaby
+ */
+
+/*
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the Free
+ * Software Foundation; either version 2 of the License, or (at your option)
+ * any later version.
+ */
+
+#ifndef ASM_LIVEPATCH_H
+#define ASM_LIVEPATCH_H
+
+#include <linux/module.h>
+
+#ifdef CONFIG_LIVEPATCH
+static inline int klp_check_compiler_support(void)
+{
+ return 0;
+}
+
+static inline int klp_write_module_reloc(struct module *mod, unsigned long
+ type, unsigned long loc, unsigned long value)
+{
+ /* not supported yet */
+ return -ENOSYS;
+}
+
+static inline void klp_arch_set_pc(struct pt_regs *regs, unsigned long ip)
+{
+ regs->psw.addr = ip;
+}
+#else
+#error Live patching support is disabled; check CONFIG_LIVEPATCH
+#endif
+
+#endif