libxl: don't set PoD target for PV guests

Previously PoD target was unconditionally set for both PV and HVM
guests, but in fact PoD has always been an HVM (now PVH as well) only
feature.

Signed-off-by: Wei Liu <wei.liu2@citrix.com>
Acked-by: Ian Jackson <ian.jackson@eu.citrix.com>

tools/libxl/libxl_mem.c

@@ -298,16 +298,18 @@ retry_transaction:
         }
     }
 
-    r = xc_domain_set_pod_target(ctx->xch, domid,
-            (new_target_memkb + size) / 4, NULL, NULL, NULL);
-    if (r != 0) {
-        LOGED(ERROR, domid,
-              "xc_domain_set_pod_target memkb=%"PRIu64" failed rc=%d\n",
-              (new_target_memkb + size) / 4,
-              r);
-        abort_transaction = 1;
-        rc = ERROR_FAIL;
-        goto out;
+    if (d_config.c_info.type != LIBXL_DOMAIN_TYPE_PV) {
+        r = xc_domain_set_pod_target(ctx->xch, domid,
+                (new_target_memkb + size) / 4, NULL, NULL, NULL);
+        if (r != 0) {
+            LOGED(ERROR, domid,
+                  "xc_domain_set_pod_target memkb=%"PRIu64" failed rc=%d\n",
+                  (new_target_memkb + size) / 4,
+                  r);
+            abort_transaction = 1;
+            rc = ERROR_FAIL;
+            goto out;
+        }
     }
 
     libxl__xs_printf(gc, t, GCSPRINTF("%s/memory/target", dompath),