Enable shared-VM namespace support

Required prep work for gracefully supporting
"... dpdk { proc-type secondary }" -  multiple processes sharing a physical
host, VM, container, etc.

Change-Id: Ic3eb72f4093e26d7c86dde3b8799264f1d0c218b
Signed-off-by: Dave Barach <dave@barachs.net>

2 files changed, 24 insertions, 1 deletions

diff --git a/vpp/api/api.c b/vpp/api/api.c
index 9f3da214356..55de9946c19 100644
--- a/vpp/api/api.c
+++ b/vpp/api/api.c
@@ -4979,6 +4979,26 @@ vpe_api_init (vlib_main_t *vm)
 
 VLIB_INIT_FUNCTION(vpe_api_init);
 
+static clib_error_t *
+chroot_config (vlib_main_t * vm, unformat_input_t * input)
+{
+  u8 * chroot_path;
+
+  while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
+    {
+      if (unformat (input, "prefix %s", &chroot_path))
+        {
+          vec_add1 (chroot_path, 0);
+          vl_set_memory_root_path ((char *)chroot_path);
+        }
+      else
+	return clib_error_return (0, "unknown input `%U'",
+				  format_unformat_error, input);
+    }
+  return 0;
+}
+VLIB_EARLY_CONFIG_FUNCTION (chroot_config, "chroot");
+
 void * get_unformat_vnet_sw_interface (void)
 {
     return (void *) &unformat_vnet_sw_interface;
diff --git a/vpp/api/gmon.c b/vpp/api/gmon.c
index 75bf34438df..e256e83b370 100644
--- a/vpp/api/gmon.c
+++ b/vpp/api/gmon.c
@@ -35,6 +35,8 @@
 #include <vppinfra/heap.h>
 #include <vppinfra/pool.h>
 #include <vppinfra/format.h>
+#include <vlibapi/api.h>
+#include <vlibmemory/api.h>
 
 #include <vlib/vlib.h>
 #include <vlib/unix/unix.h>
@@ -104,11 +106,12 @@ static clib_error_t *
 gmon_init (vlib_main_t *vm)
 {
     gmon_main_t *gm = &gmon_main;
+    api_main_t * am = &api_main;
     pid_t *swp = 0;
     f64 *v = 0;
 
     gm->vlib_main = vm;
-    gm->svmdb_client = svmdb_map();
+    gm->svmdb_client = svmdb_map_chroot(am->root_path);
 
     /* Find or create, set to zero */
     vec_add1 (v, 0.0);