[dpdk-dev] [PATCH v5 09/19] vhost: enable fds passing when sending vhost-user messages
Maxime Coquelin
maxime.coquelin at redhat.com
Wed Oct 10 12:26:56 CEST 2018
On 10/10/2018 12:09 PM, Tiwei Bie wrote:
> On Tue, Oct 09, 2018 at 10:54:16PM +0200, Maxime Coquelin wrote:
>> Passing userfault fds to Qemu will be required for postcopy
>> live-migration feature.
>>
>> Signed-off-by: Dr. David Alan Gilbert <dgilbert at redhat.com>
>> Signed-off-by: Maxime Coquelin <maxime.coquelin at redhat.com>
>> ---
>> lib/librte_vhost/vhost_user.c | 27 +++++++++++++++------------
>> 1 file changed, 15 insertions(+), 12 deletions(-)
>>
>> diff --git a/lib/librte_vhost/vhost_user.c b/lib/librte_vhost/vhost_user.c
>> index bce2395a3..99adcedfa 100644
>> --- a/lib/librte_vhost/vhost_user.c
>> +++ b/lib/librte_vhost/vhost_user.c
>> @@ -161,6 +161,7 @@ vhost_user_get_features(struct virtio_net **pdev, struct VhostUserMsg *msg,
>>
>> msg->payload.u64 = features;
>> msg->size = sizeof(msg->payload.u64);
>> + msg->fd_num = 0;
>
> When message handlers in this file return VH_RESULT_REPLY,
> the msg->fd_num will be zeroed explicitly. Do we also want
> to do this in vhost_crypto_msg_post_handler()?
I think that would be better indeed.
>>
>> return VH_RESULT_REPLY;
>> }
> [...]
>
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