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[Xen-devel] [PATCH RFC 08/12] libxl: don't launch Qemu on Dom0 for Qdisk devices on driver domains



In libxl__need_xenpv_qemu check that the backend domain of the Qdisk
device is Dom0 before launching a Qemu instance in the toolstack
domain.

Signed-off-by: Roger Pau Monnà <roger.pau@xxxxxxxxxx>
Cc: Ian Jackson <Ian.Jackson@xxxxxxxxxxxxx>
Cc: Ian Campbell <ian.campbell@xxxxxxxxxx>
---
 tools/libxl/libxl_dm.c |    3 ++-
 1 files changed, 2 insertions(+), 1 deletions(-)

diff --git a/tools/libxl/libxl_dm.c b/tools/libxl/libxl_dm.c
index 4035b6d..ddc7367 100644
--- a/tools/libxl/libxl_dm.c
+++ b/tools/libxl/libxl_dm.c
@@ -1368,7 +1368,8 @@ int libxl__need_xenpv_qemu(libxl__gc *gc,
 
     if (nr_disks > 0) {
         for (i = 0; i < nr_disks; i++) {
-            if (disks[i].backend == LIBXL_DISK_BACKEND_QDISK) {
+            if (disks[i].backend == LIBXL_DISK_BACKEND_QDISK &&
+                disks[i].backend_domid == LIBXL_TOOLSTACK_DOMID) {
                 ret = 1;
                 goto out;
             }
-- 
1.7.7.5 (Apple Git-26)


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