s390x: Info skeys sub-command

Provide an  info skeys hmp sub-command to allow the end user to dump a storage
key for a given address. This is useful for guest operating system developers.

Reviewed-by: Thomas Huth <thuth@linux.vnet.ibm.com>
Reviewed-by: David Hildenbrand <dahi@linux.vnet.ibm.com>
Signed-off-by: Jason J. Herne <jjherne@linux.vnet.ibm.com>
Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>

1 files changed, 9 insertions, 0 deletions

diff --git a/monitor.c b/monitor.c
index 3deba38105..451af6ff89 100644
--- a/monitor.c
+++ b/monitor.c
@@ -2881,6 +2881,15 @@ static mon_cmd_t info_cmds[] = {
         .help       = "Show rocker OF-DPA groups",
         .mhandler.cmd = hmp_rocker_of_dpa_groups,
     },
+#if defined(TARGET_S390X)
+    {
+        .name       = "skeys",
+        .args_type  = "addr:l",
+        .params     = "address",
+        .help       = "Display the value of a storage key",
+        .mhandler.cmd = hmp_info_skeys,
+    },
+#endif
     {
         .name       = NULL,
     },