8b272e0018
This creates the 'accel' Python module to be the home for utilities that deal with accelerators. Also moved kvm_available() from __init__.py to this new module. Signed-off-by: Wainer dos Santos Moschetta <wainersm@redhat.com> Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com> Message-Id: <20191216191438.93418-2-wainersm@redhat.com> Signed-off-by: Cleber Rosa <crosa@redhat.com>
32 lines
807 B
Python
32 lines
807 B
Python
"""
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QEMU accel module:
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This module provides utilities for discover and check the availability of
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accelerators.
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"""
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# Copyright (C) 2015-2016 Red Hat Inc.
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# Copyright (C) 2012 IBM Corp.
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#
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# Authors:
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# Fam Zheng <famz@redhat.com>
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#
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# This work is licensed under the terms of the GNU GPL, version 2. See
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# the COPYING file in the top-level directory.
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#
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import os
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# Mapping host architecture to any additional architectures it can
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# support which often includes its 32 bit cousin.
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ADDITIONAL_ARCHES = {
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"x86_64" : "i386",
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"aarch64" : "armhf"
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}
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def kvm_available(target_arch=None):
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host_arch = os.uname()[4]
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if target_arch and target_arch != host_arch:
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if target_arch != ADDITIONAL_ARCHES.get(host_arch):
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return False
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return os.access("/dev/kvm", os.R_OK | os.W_OK)
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