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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>
Date: Mon, 8 Oct 2018 17:25:42 +0200
Message-Id: <20181008152557.14275-5-maxime.coquelin@redhat.com>
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References: <20181008152557.14275-1-maxime.coquelin@redhat.com>
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Subject: [dpdk-dev] [PATCH v4 04/19] vhost: fix payload size of reply
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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 7f3e86778..71a0e7dd7 100644
--- a/lib/librte_vhost/vhost_user.c
+++ b/lib/librte_vhost/vhost_user.c
@@ -1296,7 +1296,11 @@ 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