[Xen-changelog] [xen-unstable] [MINI-OS] Add a function mapping grant table error codes to strings.

[Xen patchbot-unstable <patchbot-unstable@xxxxxxxxxxxxxxxxxxx>]

# HG changeset patch
# User sos22@xxxxxxxxxxxxxxxxxxxx
# Node ID 4a669bd506577b075bc6cf2b0d7c8ac6e5a0dfc0
# Parent  cbfced5fcdb348f23c8727305230b638b16c92dd
[MINI-OS] Add a function mapping grant table error codes to strings.

Signed-off-by: John D. Ramsdell <ramsdell@xxxxxxxxx>
Signed-off-by: Steven Smith <sos22@xxxxxxxxx>
---
 extras/mini-os/gnttab.c         |   12 ++++++++++++
 extras/mini-os/include/gnttab.h |    1 +
 2 files changed, 13 insertions(+)

diff -r cbfced5fcdb3 -r 4a669bd50657 extras/mini-os/gnttab.c
--- a/extras/mini-os/gnttab.c   Fri Jul 28 14:05:02 2006 +0100
+++ b/extras/mini-os/gnttab.c   Fri Jul 28 14:06:27 2006 +0100
@@ -137,6 +137,18 @@ gnttab_alloc_and_grant(void **map)
     return gref;
 }
 
+static const char *gnttabop_error_msgs[] = GNTTABOP_error_msgs;
+
+const char *
+gnttabop_error(int16_t status)
+{
+    status = -status;
+    if (status < 0 || status >= ARRAY_SIZE(gnttabop_error_msgs))
+       return "bad status";
+    else
+        return gnttabop_error_msgs[status];
+}
+
 void
 init_gnttab(void)
 {
diff -r cbfced5fcdb3 -r 4a669bd50657 extras/mini-os/include/gnttab.h
--- a/extras/mini-os/include/gnttab.h   Fri Jul 28 14:05:02 2006 +0100
+++ b/extras/mini-os/include/gnttab.h   Fri Jul 28 14:06:27 2006 +0100
@@ -10,5 +10,6 @@ grant_ref_t gnttab_grant_transfer(domid_
 grant_ref_t gnttab_grant_transfer(domid_t domid, unsigned long pfn);
 unsigned long gnttab_end_transfer(grant_ref_t gref);
 int gnttab_end_access(grant_ref_t ref);
+const char *gnttabop_error(int16_t status);
 
 #endif /* !__GNTTAB_H__ */

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