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[Xen-devel] [PATCH 16/28] libxl: emuids: Provide libxl__dm_xs_path_rel



This gives a relative path, suitable for driver domains.  It will be
used shortly.

No functional change.

Signed-off-by: Ian Jackson <Ian.Jackson@xxxxxxxxxxxxx>
---
v6: New patch
---
 tools/libxl/libxl_internal.c |   10 ++++++++--
 tools/libxl/libxl_internal.h |    4 ++++
 2 files changed, 12 insertions(+), 2 deletions(-)

diff --git a/tools/libxl/libxl_internal.c b/tools/libxl/libxl_internal.c
index 843fdbf..d0c98b0 100644
--- a/tools/libxl/libxl_internal.c
+++ b/tools/libxl/libxl_internal.c
@@ -553,6 +553,12 @@ void libxl__update_domain_configuration(libxl__gc *gc,
     dst->b_info.video_memkb = src->b_info.video_memkb;
 }
 
+char *libxl__dm_xs_path_rel(libxl__gc *gc,
+                            uint32_t domid, int emuid)
+{
+    return GCSPRINTF("device-model/%u", domid);
+}
+
 char *libxl__device_model_xs_path(libxl__gc *gc, uint32_t dm_domid,
                                   uint32_t domid, int emuid,
                                   const char *format,  ...)
@@ -560,8 +566,8 @@ char *libxl__device_model_xs_path(libxl__gc *gc, uint32_t 
dm_domid,
     char *s, *fmt;
     va_list ap;
 
-    fmt = GCSPRINTF("/local/domain/%u/device-model/%u%s", dm_domid,
-                    domid, format);
+    fmt = GCSPRINTF("/local/domain/%u/%s%s", dm_domid,
+                    libxl__dm_xs_path_rel(gc, domid, emuid), format);
 
     va_start(ap, format);
     s = libxl__vsprintf(gc, fmt, ap);
diff --git a/tools/libxl/libxl_internal.h b/tools/libxl/libxl_internal.h
index 4a9003d..2248509 100644
--- a/tools/libxl/libxl_internal.h
+++ b/tools/libxl/libxl_internal.h
@@ -1982,6 +1982,10 @@ _hidden char *libxl__device_model_xs_path(libxl__gc *gc,
         uint32_t domid, int emuid,
         const char *format, ...) PRINTF_ATTRIBUTE(5, 6);
 
+_hidden char *libxl__dm_xs_path_rel(libxl__gc *gc,
+                                    uint32_t domid, int emuid);
+    /* returns relative path (ie assuming we are the toolstack) */
+
 /*
  * Calling context and GC for event-generating functions:
  *
-- 
1.7.10.4


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