[S390] Export vmcoreinfo note

This patch defines for s390 an ABI defined pointer to the vmcoreinfo note at
a well known address. With this patch tools are able to find this information
in dumps created by stand-alone or hypervisor dump tools.

Signed-off-by: Michael Holzheu <holzheu@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>

1 files changed, 6 insertions, 4 deletions

diff --git a/arch/s390/include/asm/lowcore.h b/arch/s390/include/asm/lowcore.h
index e85c911aabf..4f990a5e5b5 100644
--- a/arch/s390/include/asm/lowcore.h
+++ b/arch/s390/include/asm/lowcore.h
@@ -151,10 +151,11 @@ struct _lowcore {
          */
         __u32   ipib;                           /* 0x0e00 */
         __u32   ipib_checksum;                  /* 0x0e04 */
+        __u32   vmcore_info;                    /* 0x0e08 */
 
         /* 64 bit save area */
-        __u64   save_area_64;                   /* 0x0e08 */
-        __u8    pad_0x0e10[0x0f00-0x0e10];      /* 0x0e10 */
+        __u64   save_area_64;                   /* 0x0e0c */
+        __u8    pad_0x0e14[0x0f00-0x0e14];      /* 0x0e14 */
 
         /* Extended facility list */
         __u64   stfle_fac_list[32];             /* 0x0f00 */
@@ -290,10 +291,11 @@ struct _lowcore {
          */
         __u64   ipib;                           /* 0x0e00 */
         __u32   ipib_checksum;                  /* 0x0e08 */
+        __u64   vmcore_info;                    /* 0x0e0c */
 
         /* 64 bit save area */
-        __u64   save_area_64;                   /* 0x0e0c */
-        __u8    pad_0x0e14[0x0f00-0x0e14];      /* 0x0e14 */
+        __u64   save_area_64;                   /* 0x0e14 */
+        __u8    pad_0x0e1c[0x0f00-0x0e1c];      /* 0x0e1c */
 
         /* Extended facility list */
         __u64   stfle_fac_list[32];             /* 0x0f00 */