[Top][All Lists]
[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
[Qemu-devel] [PATCH v2 2/3] qemu-iotests: add qcow2.py set-feature-bit c
From: |
Stefan Hajnoczi |
Subject: |
[Qemu-devel] [PATCH v2 2/3] qemu-iotests: add qcow2.py set-feature-bit command |
Date: |
Thu, 14 Jun 2012 13:58:17 +0100 |
This new command sets feature bits in the image file header:
qcow2.py set-feature-bit incompatible|compatible|autoclear <bit>
The bit number must be in the range [0, 64).
Signed-off-by: Stefan Hajnoczi <address@hidden>
---
tests/qemu-iotests/qcow2.py | 23 +++++++++++++++++++++++
1 file changed, 23 insertions(+)
diff --git a/tests/qemu-iotests/qcow2.py b/tests/qemu-iotests/qcow2.py
index e27196a..97f3770 100755
--- a/tests/qemu-iotests/qcow2.py
+++ b/tests/qemu-iotests/qcow2.py
@@ -181,10 +181,33 @@ def cmd_del_header_ext(fd, magic):
h.update(fd)
+def cmd_set_feature_bit(fd, group, bit):
+ try:
+ bit = int(bit, 0)
+ if bit < 0 or bit >= 64:
+ raise ValueError
+ except:
+ print "'%s' is not a valid bit number in range [0, 64)" % bit
+ sys.exit(1)
+
+ h = QcowHeader(fd)
+ if group == 'incompatible':
+ h.incompatible_features |= 1 << bit
+ elif group == 'compatible':
+ h.compatible_features |= 1 << bit
+ elif group == 'autoclear':
+ h.autoclear_features |= 1 << bit
+ else:
+ print "'%s' is not a valid group, try 'incompatible', 'compatible', or
'autoclear'" % group
+ sys.exit(1)
+
+ h.update(fd)
+
cmds = [
[ 'dump-header', cmd_dump_header, 0, 'Dump image header and header
extensions' ],
[ 'add-header-ext', cmd_add_header_ext, 2, 'Add a header extension' ],
[ 'del-header-ext', cmd_del_header_ext, 1, 'Delete a header extension' ],
+ [ 'set-feature-bit', cmd_set_feature_bit, 2, 'Set a feature bit'],
]
def main(filename, cmd, args):
--
1.7.10