Add the rt linux 4.1.3-rt3 as base

[kvmfornfv.git] / kernel / arch / s390 / include / asm / os_info.h

diff --git a/kernel/arch/s390/include/asm/os_info.h b/kernel/arch/s390/include/asm/os_info.h
new file mode 100644 (file)
index 0000000..295f2c4
--- /dev/null
+++ b/kernel/arch/s390/include/asm/os_info.h
@@ -0,0 +1,49 @@
+/*
+ * OS info memory interface
+ *
+ * Copyright IBM Corp. 2012
+ * Author(s): Michael Holzheu <holzheu@linux.vnet.ibm.com>
+ */
+#ifndef _ASM_S390_OS_INFO_H
+#define _ASM_S390_OS_INFO_H
+
+#define OS_INFO_VERSION_MAJOR  1
+#define OS_INFO_VERSION_MINOR  1
+#define OS_INFO_MAGIC          0x4f53494e464f535aULL /* OSINFOSZ */
+
+#define OS_INFO_VMCOREINFO     0
+#define OS_INFO_REIPL_BLOCK    1
+
+struct os_info_entry {
+       u64     addr;
+       u64     size;
+       u32     csum;
+} __packed;
+
+struct os_info {
+       u64     magic;
+       u32     csum;
+       u16     version_major;
+       u16     version_minor;
+       u64     crashkernel_addr;
+       u64     crashkernel_size;
+       struct os_info_entry entry[2];
+       u8      reserved[4024];
+} __packed;
+
+void os_info_init(void);
+void os_info_entry_add(int nr, void *ptr, u64 len);
+void os_info_crashkernel_add(unsigned long base, unsigned long size);
+u32 os_info_csum(struct os_info *os_info);
+
+#ifdef CONFIG_CRASH_DUMP
+void *os_info_old_entry(int nr, unsigned long *size);
+int copy_from_oldmem(void *dest, void *src, size_t count);
+#else
+static inline void *os_info_old_entry(int nr, unsigned long *size)
+{
+       return NULL;
+}
+#endif
+
+#endif /* _ASM_S390_OS_INFO_H */