[PULL 11/15] python/qemu: Move kvm_available() to its own module

[Cleber Rosa <crosa@redhat.com>]

From: Wainer dos Santos Moschetta <wainersm@redhat.com>

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>
---
 python/qemu/__init__.py               | 20 +-------------------
 python/qemu/{__init__.py => accel.py} | 16 ++++++----------
 tests/vm/basevm.py                    |  2 +-
 3 files changed, 8 insertions(+), 30 deletions(-)
 copy python/qemu/{__init__.py => accel.py} (84%)

diff --git a/python/qemu/__init__.py b/python/qemu/__init__.py
index 6c919a3d56..eff17a306e 100644
--- a/python/qemu/__init__.py
+++ b/python/qemu/__init__.py
@@ -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
diff --git a/python/qemu/__init__.py b/python/qemu/accel.py
similarity index 84%
copy from python/qemu/__init__.py
copy to python/qemu/accel.py
index 6c919a3d56..cbeac10dd1 100644
--- a/python/qemu/__init__.py
+++ b/python/qemu/accel.py
@@ -1,5 +1,9 @@
-# QEMU library
-#
+"""
+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.
 #
@@ -9,17 +13,9 @@
 # This work is licensed under the terms of the GNU GPL, version 2.  See
 # the COPYING file in the top-level directory.
 #
-# 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 = {
diff --git a/tests/vm/basevm.py b/tests/vm/basevm.py
index 0b8c1b2657..53b9515ee2 100755
--- a/tests/vm/basevm.py
+++ b/tests/vm/basevm.py
@@ -21,7 +21,7 @@ import logging
 import time
 import datetime
 sys.path.append(os.path.join(os.path.dirname(__file__), '..', '..', 'python'))
-from qemu import kvm_available
+from qemu.accel import kvm_available
 from qemu.machine import QEMUMachine
 import subprocess
 import hashlib
-- 
2.21.0