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Mon, 16 Dec 2019 19:14:49 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1576523693; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=AcD9ROGvtSV+wqMEqqKIqhvjn5QGmno0NIrziv6959U=; b=LFRt5T271WJgA3o6+P3jBjQeyEip/nAHOjx2l5sPsz/zo9IOELDqOslEcTEwb96j6DkTPO XI+AjplplHr3+q+5szsviB40Edap/XifnJQIsIURiFCyXNWcG9LEvSYvZni29wtgrp9L9T yLPdrelKK3KPv7gT+CxNLR0DQ07+9qQ= From: Wainer dos Santos Moschetta To: qemu-devel@nongnu.org Subject: [PATCH v4 2/5] python/qemu: accel: Add list_accel() method Date: Mon, 16 Dec 2019 16:14:35 -0300 Message-Id: <20191216191438.93418-3-wainersm@redhat.com> In-Reply-To: <20191216191438.93418-1-wainersm@redhat.com> References: <20191216191438.93418-1-wainersm@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.16 X-MC-Unique: -QYynzvoNhSR8l1J7Yb8Kg-1 X-Mimecast-Spam-Score: 0 Content-Transfer-Encoding: quoted-printable X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] [fuzzy] X-Received-From: 205.139.110.120 X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: fam@euphon.net, ehabkost@redhat.com, philmd@redhat.com, jsnow@redhat.com, crosa@redhat.com, alex.bennee@linaro.org Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: fail (Header signature does not verify) Content-Type: text/plain; charset="utf-8" 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 Reviewed-by: Cleber Rosa Tested-by: Cleber Rosa --- 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. # =20 +import logging import os +import subprocess + +LOG =3D logging.getLogger(__name__) =20 # Mapping host architecture to any additional architectures it can # support which often includes its 32 bit cousin. @@ -23,6 +27,25 @@ ADDITIONAL_ARCHES =3D { "aarch64" : "armhf" } =20 +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 =3D subprocess.check_output([qemu_bin, '-accel', 'help'], + universal_newlines=3DTrue) + 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=3DNone): host_arch =3D os.uname()[4] if target_arch and target_arch !=3D host_arch: --=20 2.23.0