[Xen-devel] [PATCH v3 17/17] libxl: require qemu in dom0 even if stubdomain is in use

[Marek Marczykowski-Górecki <marmarek@xxxxxxxxxxxxxxxxxxxxxx>]

Until xenconsoled learns how to handle multiple consoles, this is needed
for save/restore support (qemu state is transferred over secondary
consoles).
Additionally, Linux-based stubdomain waits for all the backends to
initialize during boot. Lack of some console backends results in
stubdomain startup timeout.

This is a temporary patch until xenconsoled will be improved.

Signed-off-by: Marek Marczykowski-Górecki <marmarek@xxxxxxxxxxxxxxxxxxxxxx>
---
 tools/libxl/libxl_dm.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/tools/libxl/libxl_dm.c b/tools/libxl/libxl_dm.c
index ce65321..0fdc2f8 100644
--- a/tools/libxl/libxl_dm.c
+++ b/tools/libxl/libxl_dm.c
@@ -2438,7 +2438,11 @@ static void spawn_stub_launch_dm(libxl__egc *egc,
         }
     }
 
-    need_qemu = libxl__need_xenpv_qemu(gc, dm_config);
+    /*
+     * Until xenconsoled learns how to handle multiple consoles, require qemu
+     * in dom0, since the above code always adds at least 2 consoles.
+     */
+    need_qemu = 1;
 
     for (i = 0; i < num_console; i++) {
         libxl__device device;
-- 
git-series 0.9.1

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