Since commit cbe6d6365a48 the command `qemu -accel help` returns
the list of accelerators enabled in the QEMU binary. This adds
the list_accel() method which return that same list.
Signed-off-by: Wainer dos Santos Moschetta <wainersm@redhat.com>
---
python/qemu/accel.py | 23 +++++++++++++++++++++++
1 file changed, 23 insertions(+)
diff --git a/python/qemu/accel.py b/python/qemu/accel.py
index cbeac10dd1..7395cee793 100644
--- a/python/qemu/accel.py
+++ b/python/qemu/accel.py
@@ -14,7 +14,11 @@ accelerators.
# the COPYING file in the top-level directory.
#
+import logging
import os
+import subprocess
+
+LOG = logging.getLogger(__name__)
# Mapping host architecture to any additional architectures it can
# support which often includes its 32 bit cousin.
@@ -23,6 +27,25 @@ ADDITIONAL_ARCHES = {
"aarch64" : "armhf"
}
+def list_accel(qemu_bin):
+ """
+ List accelerators enabled in the QEMU binary.
+
+ @param qemu_bin (str): path to the QEMU binary.
+ @raise Exception: if failed to run `qemu -accel help`
+ @return a list of accelerator names.
+ """
+ if not qemu_bin:
+ return []
+ try:
+ out = subprocess.check_output([qemu_bin, '-accel', 'help'],
+ universal_newlines=True)
+ except:
+ LOG.debug("Failed to get the list of accelerators in %s", qemu_bin)
+ raise
+ # Skip the first line which is the header.
+ return [acc.strip() for acc in out.splitlines()[1:]]
+
def kvm_available(target_arch=None):
host_arch = os.uname()[4]
if target_arch and target_arch != host_arch:
--
2.23.0