From patchwork Tue Dec 17 05:15:18 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Cleber Rosa X-Patchwork-Id: 11296841 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id D86AD930 for ; Tue, 17 Dec 2019 06:00:10 +0000 (UTC) Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id AD7392146E for ; Tue, 17 Dec 2019 06:00:10 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b="ap0kJH+v" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org AD7392146E Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=redhat.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=qemu-devel-bounces+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org Received: from localhost ([::1]:36364 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1ih5tx-0003T1-Sg for patchwork-qemu-devel@patchwork.kernel.org; Tue, 17 Dec 2019 01:00:09 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]:52630) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1ih5Dx-0004T6-Rv for qemu-devel@nongnu.org; Tue, 17 Dec 2019 00:16:47 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1ih5Dw-0004Cb-Mj for qemu-devel@nongnu.org; Tue, 17 Dec 2019 00:16:45 -0500 Received: from us-smtp-delivery-1.mimecast.com ([207.211.31.120]:22553 helo=us-smtp-1.mimecast.com) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1ih5Dw-0004CM-JD for qemu-devel@nongnu.org; Tue, 17 Dec 2019 00:16:44 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1576559804; 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=UXeHrJD4tk/u30DpUF63Av8cKzHkbifYHGE/1Vt3IiI=; b=ap0kJH+vSWSOeR7p3ASRGdkyRmDPZ22IDUQW8UJ1Tm5D3uecNqA8oD3LISAJg/lmZUyWjG 4ZoDS5kK9ynMz4njUjNoSV19WVrqEYoveTNIkdw45gn7XiBLfJ58IUJ+lceR7HHvN2sByU e4Q5qu+1lhB0N2mQXB5zys7L+eqzGYY= Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-317-_9qxFTgyNR-dgwA-3j7mng-1; Tue, 17 Dec 2019 00:16:42 -0500 Received: from smtp.corp.redhat.com (int-mx08.intmail.prod.int.phx2.redhat.com [10.5.11.23]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id 0D43A189CD00; Tue, 17 Dec 2019 05:16:41 +0000 (UTC) Received: from localhost.localdomain.com (ovpn-116-6.gru2.redhat.com [10.97.116.6]) by smtp.corp.redhat.com (Postfix) with ESMTPS id 70F3919C4F; Tue, 17 Dec 2019 05:16:37 +0000 (UTC) From: Cleber Rosa To: qemu-devel@nongnu.org, Peter Maydell Subject: [PULL 12/15] python/qemu: accel: Add list_accel() method Date: Tue, 17 Dec 2019 00:15:18 -0500 Message-Id: <20191217051521.1239-13-crosa@redhat.com> In-Reply-To: <20191217051521.1239-1-crosa@redhat.com> References: <20191217051521.1239-1-crosa@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.84 on 10.5.11.23 X-MC-Unique: _9qxFTgyNR-dgwA-3j7mng-1 X-Mimecast-Spam-Score: 0 X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] [fuzzy] X-Received-From: 207.211.31.120 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 Zheng , Beraldo Leal , =?utf-8?q?A?= =?utf-8?q?lex_Benn=C3=A9e?= , Fabien Chouteau , KONRAD Frederic , qemu-ppc@nongnu.org, Wainer dos Santos Moschetta , Willian Rampazzo , Cleber Rosa , =?utf-8?q?Herv=C3=A9_Poussineau?= , Aleksandar Rikalo , =?utf-8?q?Philippe_Mathieu?= =?utf-8?q?-Daud=C3=A9?= , Aurelien Jarno , Eduardo Habkost Errors-To: qemu-devel-bounces+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org Sender: "Qemu-devel" From: Wainer dos Santos Moschetta 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 Message-Id: <20191216191438.93418-3-wainersm@redhat.com> Reviewed-by: Cleber Rosa Tested-by: Cleber Rosa Signed-off-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. # +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: