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#
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# Copyright 2011, 2013 Red Hat, Inc.
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# Cole Robinson <crobinso@redhat.com>
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# Marc-Andre Lureau <marcandre.lureau@redhat.com>
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#
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# Copyright 2013 IBM Corporation
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# Author: Stefan Berger <stefanb@linux.vnet.ibm.com>
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
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#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
# MA 02110-1301 USA.
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from . device import VirtualDevice
from . xmlbuilder import XMLProperty
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class VirtualTPMDevice ( VirtualDevice ) :
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virtual_device_type = VirtualDevice . VIRTUAL_DEV_TPM
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TYPE_PASSTHROUGH = " passthrough "
TYPE_DEFAULT = " default "
TYPES = [ TYPE_PASSTHROUGH ]
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MODEL_TIS = " tpm-tis "
MODEL_DEFAULT = " default "
MODELS = [ MODEL_TIS ]
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@staticmethod
def get_pretty_type ( tpm_type ) :
if tpm_type == VirtualTPMDevice . TYPE_PASSTHROUGH :
return _ ( " Passthrough device " )
return tpm_type
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def supports_property ( self , propname ) :
"""
Whether the TPM dev type supports the passed property name
"""
users = {
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" device_path " : [ self . TYPE_PASSTHROUGH ] ,
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}
if users . get ( propname ) :
return self . type in users [ propname ]
return hasattr ( self , propname )
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type = XMLProperty ( " ./backend/@type " ,
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default_cb = lambda s : s . TYPE_PASSTHROUGH )
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model = XMLProperty ( " ./@model " ,
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default_cb = lambda s : s . MODEL_TIS )
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device_path = XMLProperty ( " ./backend/device/@path " ,
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default_cb = lambda s : " /dev/tpm0 " )
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VirtualTPMDevice . register_type ( )