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Thu, 12 Dec 2019 18:08:27 +0000 Received: from b01ledav003.gho.pok.ibm.com (b01ledav003.gho.pok.ibm.com [9.57.199.108]) by b01cxnp23032.gho.pok.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id xBCI8RmV34275664 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Thu, 12 Dec 2019 18:08:27 GMT Received: from b01ledav003.gho.pok.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 03E22B2066; Thu, 12 Dec 2019 18:08:27 +0000 (GMT) Received: from b01ledav003.gho.pok.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id E1282B2065; Thu, 12 Dec 2019 18:08:26 +0000 (GMT) Received: from sbct-3.pok.ibm.com (unknown [9.47.158.153]) by b01ledav003.gho.pok.ibm.com (Postfix) with ESMTP; Thu, 12 Dec 2019 18:08:26 +0000 (GMT) From: Stefan Berger To: qemu-ppc@nongnu.org Subject: [PATCH v4 5/8] tpm: Return bool from tpm_backend_finish_sync Date: Thu, 12 Dec 2019 13:07:41 -0500 Message-Id: <20191212180744.1070446-6-stefanb@linux.vnet.ibm.com> X-Mailer: git-send-email 2.21.0 In-Reply-To: <20191212180744.1070446-1-stefanb@linux.vnet.ibm.com> References: <20191212180744.1070446-1-stefanb@linux.vnet.ibm.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-TM-AS-GCONF: 00 X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:6.0.95,18.0.572 definitions=2019-12-12_05:2019-12-12,2019-12-12 signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 malwarescore=0 bulkscore=0 suspectscore=1 impostorscore=0 phishscore=0 mlxscore=0 clxscore=1015 lowpriorityscore=0 mlxlogscore=999 priorityscore=1501 adultscore=0 spamscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-1910280000 definitions=main-1912120140 X-detected-operating-system: by eggs.gnu.org: GNU/Linux 3.x [generic] [fuzzy] X-Received-From: 148.163.158.5 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: marcandre.lureau@redhat.com, Stefan Berger , qemu-devel@nongnu.org, david@gibson.dropbear.id.au Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" Return true in case we had to wait for an outstanding response to come back, false otherwise. Signed-off-by: Stefan Berger diff --git a/backends/tpm.c b/backends/tpm.c index 424c9fd485..ae4d8c526b 100644 --- a/backends/tpm.c +++ b/backends/tpm.c @@ -49,11 +49,15 @@ static int tpm_backend_worker_thread(gpointer data) return 0; } -void tpm_backend_finish_sync(TPMBackend *s) +bool tpm_backend_finish_sync(TPMBackend *s) { + bool ret = s->cmd != NULL; + while (s->cmd) { aio_poll(qemu_get_aio_context(), true); } + + return ret; } enum TpmType tpm_backend_get_type(TPMBackend *s) diff --git a/include/sysemu/tpm_backend.h b/include/sysemu/tpm_backend.h index f5d8051b45..3ab9f51ba4 100644 --- a/include/sysemu/tpm_backend.h +++ b/include/sysemu/tpm_backend.h @@ -202,8 +202,10 @@ size_t tpm_backend_get_buffer_size(TPMBackend *s); * * Finish the pending command synchronously (this will call aio_poll() * on qemu main AIOContext until it ends) + * + * Returns true in case there was a pending command, false otherwise. */ -void tpm_backend_finish_sync(TPMBackend *s); +bool tpm_backend_finish_sync(TPMBackend *s); /** * tpm_backend_query_tpm: -- 2.21.0