# HG changeset patch
# User Stefano Stabellini <stefano.stabellini@xxxxxxxxxxxxx>
# Date 1290540202 0
# Node ID 9ffd785319e09bc9a655d320f77d655ebec42514
# Parent 91143941c4926bd8e2c709b0924ed69dabf4437d
tools/libxl: use qdisk if blktap2 is not available
Whenever blktap2 is not available use qdisk as block backend instead.
[ This feature will only work with the relevant changesets from
qemu-xen-unstable, recently applied. -iwj ]
Signed-off-by: Stefano Stabellini <stefano.stabellini@xxxxxxxxxxxxx>
---
tools/libxl/libxl.c | 5 ++++-
tools/libxl/libxl_device.c | 1 +
tools/libxl/libxl_internal.h | 1 +
3 files changed, 6 insertions(+), 1 deletion(-)
diff -r 91143941c492 -r 9ffd785319e0 tools/libxl/libxl.c
--- a/tools/libxl/libxl.c Tue Nov 23 19:21:22 2010 +0000
+++ b/tools/libxl/libxl.c Tue Nov 23 19:23:22 2010 +0000
@@ -1856,7 +1856,10 @@ int libxl_device_disk_add(libxl_ctx *ctx
flexarray_set(back, boffset++, libxl__sprintf(&gc, "%s:%s",
libxl__device_disk_string_of_phystype(disk->phystype), disk->physpath));
- device.backend_kind = DEVICE_TAP;
+ if (libxl__blktap_enabled(&gc))
+ device.backend_kind = DEVICE_TAP;
+ else
+ device.backend_kind = DEVICE_QDISK;
break;
default:
diff -r 91143941c492 -r 9ffd785319e0 tools/libxl/libxl_device.c
--- a/tools/libxl/libxl_device.c Tue Nov 23 19:21:22 2010 +0000
+++ b/tools/libxl/libxl_device.c Tue Nov 23 19:23:22 2010 +0000
@@ -33,6 +33,7 @@ static const char *string_of_kinds[] = {
[DEVICE_VIF2] = "vif2",
[DEVICE_VBD] = "vbd",
[DEVICE_TAP] = "tap",
+ [DEVICE_QDISK] = "qdisk",
[DEVICE_PCI] = "pci",
[DEVICE_VFB] = "vfb",
[DEVICE_VKBD] = "vkbd",
diff -r 91143941c492 -r 9ffd785319e0 tools/libxl/libxl_internal.h
--- a/tools/libxl/libxl_internal.h Tue Nov 23 19:21:22 2010 +0000
+++ b/tools/libxl/libxl_internal.h Tue Nov 23 19:23:22 2010 +0000
@@ -82,6 +82,7 @@ typedef enum {
DEVICE_VIF2,
DEVICE_VBD,
DEVICE_TAP,
+ DEVICE_QDISK,
DEVICE_PCI,
DEVICE_VFB,
DEVICE_VKBD,
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