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python/qemu: Move kvm_available() to its own module

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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>
This commit is contained in:
Wainer dos Santos Moschetta 2019-12-16 16:14:34 -03:00 • committed by Cleber Rosa
parent 2d320ad188
commit 8b272e0018
3 changed files with 33 additions and 20 deletions
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20
python/qemu/__init__.py
View file

@ -12,24 +12,6 @@
# Based on qmp.py.
#
import logging
import os
from . import qmp
from . import machine
LOG = logging.getLogger(__name__)
# Mapping host architecture to any additional architectures it can
# support which often includes its 32 bit cousin.
ADDITIONAL_ARCHES = {
"x86_64" : "i386",
"aarch64" : "armhf"
}
def kvm_available(target_arch=None):
host_arch = os.uname()[4]
if target_arch and target_arch != host_arch:
if target_arch != ADDITIONAL_ARCHES.get(host_arch):
return False
return os.access("/dev/kvm", os.R_OK | os.W_OK)
from . import accel

31
python/qemu/accel.py Normal file
View file

@ -0,0 +1,31 @@
"""
QEMU accel module:
This module provides utilities for discover and check the availability of
accelerators.
"""
# Copyright (C) 2015-2016 Red Hat Inc.
# Copyright (C) 2012 IBM Corp.
#
# Authors:
# Fam Zheng <famz@redhat.com>
#
# This work is licensed under the terms of the GNU GPL, version 2. See
# the COPYING file in the top-level directory.
#
import os
# Mapping host architecture to any additional architectures it can
# support which often includes its 32 bit cousin.
ADDITIONAL_ARCHES = {
"x86_64" : "i386",
"aarch64" : "armhf"
}
def kvm_available(target_arch=None):
host_arch = os.uname()[4]
if target_arch and target_arch != host_arch:
if target_arch != ADDITIONAL_ARCHES.get(host_arch):
return False
return os.access("/dev/kvm", os.R_OK | os.W_OK)