1002-libxl-do-not-start-dom0-qemu-when-not-needed.patch

From 7a7682f5a50005fdd99809148481dcd2b39e7408 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Marek=20Marczykowski-G=C3=B3recki?=
 <marmarek@invisiblethingslab.com>
Date: Tue, 21 Apr 2015 03:50:04 +0200
Subject: [PATCH] libxl: do not start dom0 qemu when not needed
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
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Use xen-blkback for 'vbd' disk types by default and do not setup vfb+vkb
when no access method was configured. Then check if qemu is really
needed.

Signed-off-by: Marek Marczykowski-Górecki <marmarek@invisiblethingslab.com>
---
 tools/libs/light/libxl_disk.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/tools/libs/light/libxl_disk.c b/tools/libs/light/libxl_disk.c
index 1f1e5c6567da..2ec7f5f37eda 100644
--- a/tools/libs/light/libxl_disk.c
+++ b/tools/libs/light/libxl_disk.c
@@ -57,11 +57,12 @@ static void disk_eject_xswatch_callback(libxl__egc *egc, libxl__ev_xswatch *w,
            "[a-z]/%*d/%*d",
            &disk->backend_domid, backend_type);
     if (!strcmp(backend_type, "tap") ||
-        !strcmp(backend_type, "vbd") ||
         !strcmp(backend_type, "vbd3")) {
         disk->backend = LIBXL_DISK_BACKEND_TAP;
     } else if (!strcmp(backend_type, "qdisk")) {
         disk->backend = LIBXL_DISK_BACKEND_QDISK;
+    } else if (!strcmp(backend_type, "vbd")) {
+        disk->backend = LIBXL_DISK_BACKEND_PHY;
     } else {
         disk->backend = LIBXL_DISK_BACKEND_UNKNOWN;
     }
-- 
2.44.0