jcs.org
qemu with hax to log dma reads & writes
jcs.org/2018/11/12/vfio
iotests: add test-case to 165 to test reopening qcow2 bitmaps to RW
Reopening bitmaps to RW was broken prior to previous commit. Check that
it works now.
Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Message-id: 20190927122355.7344-4-vsementsov@virtuozzo.com
Signed-off-by: John Snow <jsnow@redhat.com>
authored by
Vladimir Sementsov-Ogievskiy
and committed by
John Snow
5752f89a
fcd6a4f4
+57
-4
+55
-2
tests/qemu-iotests/165
+55
-2
tests/qemu-iotests/165
···
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os.remove(disk)
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def mkVm(self):
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return iotests.VM().add_drive(disk)
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return iotests.VM().add_drive(disk, opts='node-name=node0')
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def mkVmRo(self):
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return iotests.VM().add_drive(disk, opts='readonly=on')
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return iotests.VM().add_drive(disk, opts='readonly=on,node-name=node0')
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def getSha256(self):
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result = self.vm.qmp('x-debug-block-dirty-bitmap-sha256',
···
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self.checkBitmap(sha256)
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self.vm.shutdown()
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def test_reopen_rw(self):
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self.vm = self.mkVm()
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self.vm.launch()
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self.qmpAddBitmap()
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# Calculate hashes
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self.writeRegions(regions1)
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sha256_1 = self.getSha256()
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self.writeRegions(regions2)
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sha256_2 = self.getSha256()
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assert sha256_1 != sha256_2 # Otherwise, it's not very interesting.
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result = self.vm.qmp('block-dirty-bitmap-clear', node='drive0',
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name='bitmap0')
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self.assert_qmp(result, 'return', {})
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# Start with regions1
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self.writeRegions(regions1)
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assert sha256_1 == self.getSha256()
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self.vm.shutdown()
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self.vm = self.mkVmRo()
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self.vm.launch()
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assert sha256_1 == self.getSha256()
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# Check that we are in RO mode and can't modify bitmap.
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self.writeRegions(regions2)
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assert sha256_1 == self.getSha256()
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# Reopen to RW
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result = self.vm.qmp('x-blockdev-reopen', **{
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'node-name': 'node0',
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'driver': iotests.imgfmt,
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'file': {
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'driver': 'file',
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'filename': disk
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},
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'read-only': False
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})
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self.assert_qmp(result, 'return', {})
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# Check that bitmap is reopened to RW and we can write to it.
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self.writeRegions(regions2)
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assert sha256_2 == self.getSha256()
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self.vm.shutdown()
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if __name__ == '__main__':
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iotests.main(supported_fmts=['qcow2'],