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From: Maxime Coquelin <maxime.coquelin@redhat.com>
To: dev@dpdk.org, tiwei.bie@intel.com, zhihong.wang@intel.com,
	jfreimann@redhat.com, nicknickolaev@gmail.com,
	i.maximets@samsung.com, bruce.richardson@intel.com,
	alejandro.lucero@netronome.com
Cc: dgilbert@redhat.com, stable@dpdk.org,
	Maxime Coquelin <maxime.coquelin@redhat.com>
Subject: [dpdk-dev] [PATCH v5 04/19] vhost: fix payload size of reply
Date: Tue,  9 Oct 2018 22:54:11 +0200	[thread overview]
Message-ID: <20181009205426.21219-5-maxime.coquelin@redhat.com> (raw)
In-Reply-To: <20181009205426.21219-1-maxime.coquelin@redhat.com>

QEMU doesn't expect any payload for the reply of
VHOST_USER_SET_LOG_BASE request, so don't send any.
Note that the Vhost-user specification isn't clear about
it and would need to be fixed.

Fixes: 54f9e32305d4 ("vhost: handle dirty pages logging request")
Cc: stable@dpdk.org

Reported-by: Ilya Maximets <i.maximets@samsung.com>
Signed-off-by: Maxime Coquelin <maxime.coquelin@redhat.com>
Acked-by: Ilya Maximets <i.maximets@samsung.com>
---
 lib/librte_vhost/vhost_user.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/lib/librte_vhost/vhost_user.c b/lib/librte_vhost/vhost_user.c
index a7729990d..1ef02c943 100644
--- a/lib/librte_vhost/vhost_user.c
+++ b/lib/librte_vhost/vhost_user.c
@@ -1286,7 +1286,11 @@ vhost_user_set_log_base(struct virtio_net **pdev, struct VhostUserMsg *msg)
 	dev->log_base = dev->log_addr + off;
 	dev->log_size = size;
 
-	msg->size = sizeof(msg->payload.u64);
+	/*
+	 * The spec is not clear about it (yet), but QEMU doesn't expect
+	 * any payload in the reply.
+	 */
+	msg->size = 0;
 
 	return VH_RESULT_REPLY;
 }
-- 
2.17.1

  parent reply	other threads:[~2018-10-09 20:55 UTC|newest]

Thread overview: 30+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-10-09 20:54 [dpdk-dev] [PATCH v5 00/19] vhost: add postcopy live-migration support Maxime Coquelin
2018-10-09 20:54 ` [dpdk-dev] [PATCH v5 01/19] vhost: fix messages results handling Maxime Coquelin
2018-10-10  7:25   ` Maxime Coquelin
2018-10-11  9:32     ` Ilya Maximets
2018-10-11  9:36       ` Maxime Coquelin
2018-10-09 20:54 ` [dpdk-dev] [PATCH v5 02/19] vhost: fix return code of messages requiring replies Maxime Coquelin
2018-10-09 20:54 ` [dpdk-dev] [PATCH v5 03/19] vhost: clarify reply-ack in case a reply was already sent Maxime Coquelin
2018-10-09 20:54 ` Maxime Coquelin [this message]
2018-10-09 20:54 ` [dpdk-dev] [PATCH v5 05/19] vhost: fix error handling when mem table gets updated Maxime Coquelin
2018-10-09 20:54 ` [dpdk-dev] [PATCH v5 06/19] vhost: define postcopy protocol flag Maxime Coquelin
2018-10-09 20:54 ` [dpdk-dev] [PATCH v5 07/19] vhost: add number of fds to vhost-user messages and use it Maxime Coquelin
2018-10-10 10:06   ` Tiwei Bie
2018-10-09 20:54 ` [dpdk-dev] [PATCH v5 08/19] vhost: pass socket fd to message handling callbacks Maxime Coquelin
2018-10-09 20:54 ` [dpdk-dev] [PATCH v5 09/19] vhost: enable fds passing when sending vhost-user messages Maxime Coquelin
2018-10-10 10:09   ` Tiwei Bie
2018-10-10 10:26     ` Maxime Coquelin
2018-10-09 20:54 ` [dpdk-dev] [PATCH v5 10/19] vhost: add config flag for postcopy feature Maxime Coquelin
2018-10-09 20:54 ` [dpdk-dev] [PATCH v5 11/19] vhost: introduce postcopy's advise message Maxime Coquelin
2018-10-09 20:54 ` [dpdk-dev] [PATCH v5 12/19] vhost: add support for postcopy's listen message Maxime Coquelin
2018-10-09 20:54 ` [dpdk-dev] [PATCH v5 13/19] vhost: register new regions with userfaultfd Maxime Coquelin
2018-10-09 20:54 ` [dpdk-dev] [PATCH v5 14/19] vhost: avoid useless VhostUserMemory copy Maxime Coquelin
2018-10-09 20:54 ` [dpdk-dev] [PATCH v5 15/19] vhost: send userfault range addresses back to qemu Maxime Coquelin
2018-10-10 10:13   ` Tiwei Bie
2018-10-10 10:25     ` Maxime Coquelin
2018-10-09 20:54 ` [dpdk-dev] [PATCH v5 16/19] vhost: add support to postcopy's end request Maxime Coquelin
2018-10-09 20:54 ` [dpdk-dev] [PATCH v5 17/19] vhost: restrict postcopy live-migration enablement Maxime Coquelin
2018-10-10 10:17   ` Tiwei Bie
2018-10-10 10:23     ` Maxime Coquelin
2018-10-09 20:54 ` [dpdk-dev] [PATCH v5 18/19] net/vhost: add parameter to enable postcopy support Maxime Coquelin
2018-10-09 20:54 ` [dpdk-dev] [PATCH v5 19/19] vhost: enable postcopy protocol feature Maxime Coquelin

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