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Wed, 11 Dec 2019 16:21:34 +0000 (GMT) Received: from b03ledav001.gho.boulder.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id F12496E04C; Wed, 11 Dec 2019 16:21:33 +0000 (GMT) Received: from sbct-3.pok.ibm.com (unknown [9.47.158.153]) by b03ledav001.gho.boulder.ibm.com (Postfix) with ESMTP; Wed, 11 Dec 2019 16:21:33 +0000 (GMT) From: Stefan Berger To: qemu-ppc@nongnu.org Subject: [PACTH v3 2/5] tpm: Return bool from tpm_backend_finish_sync Date: Wed, 11 Dec 2019 11:20:47 -0500 Message-Id: <20191211162050.970199-3-stefanb@linux.vnet.ibm.com> X-Mailer: git-send-email 2.21.0 In-Reply-To: <20191211162050.970199-1-stefanb@linux.vnet.ibm.com> References: <20191211162050.970199-1-stefanb@linux.vnet.ibm.com> MIME-Version: 1.0 X-TM-AS-GCONF: 00 X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:6.0.95,18.0.572 definitions=2019-12-11_04:2019-12-11,2019-12-11 signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 phishscore=0 spamscore=0 lowpriorityscore=0 bulkscore=0 mlxscore=0 impostorscore=0 malwarescore=0 mlxlogscore=999 adultscore=0 clxscore=1015 priorityscore=1501 suspectscore=1 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-1910280000 definitions=main-1912110137 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+patchwork-qemu-devel=patchwork.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 --- backends/tpm.c | 6 +++++- include/sysemu/tpm_backend.h | 4 +++- 2 files changed, 8 insertions(+), 2 deletions(-) diff --git a/backends/tpm.c b/backends/tpm.c index 375587e743..1f75883d8a 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 9e7451fb52..c35fe85c62 100644 --- a/include/sysemu/tpm_backend.h +++ b/include/sysemu/tpm_backend.h @@ -200,8 +200,10 @@ 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: