32 lines
807 B
Python
32 lines
807 B
Python
|
"""
|
||
|
|
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)
|