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[Xen-devel] [PATCH v1 3/3] xen-livepatch: If hypervisor is not compiled with Livepatching



. print a better error code.

Reported-by: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@xxxxxxxxxx>
---
 tools/misc/xen-livepatch.c | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/tools/misc/xen-livepatch.c b/tools/misc/xen-livepatch.c
index 2de04c0..f11e71f07f 100644
--- a/tools/misc/xen-livepatch.c
+++ b/tools/misc/xen-livepatch.c
@@ -100,8 +100,11 @@ static int list_func(int argc, char *argv[])
         rc = xc_livepatch_list(xch, MAX_LEN, idx, info, name, len, &done, 
&left);
         if ( rc )
         {
-            fprintf(stderr, "Failed to list %d/%d: %d(%s)!\n",
-                    idx, left, errno, strerror(errno));
+            if ( errno == ENOSYS )
+                fprintf(stderr, "Hypervisor compiled without Xen 
Livepatching!\n");
+            else
+                fprintf(stderr, "Failed to list %d/%d: %d(%s)!\n",
+                        idx, left, errno, strerror(errno));
             break;
         }
         if ( !idx )
-- 
2.4.11


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