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Re: [PATCH net-next 0/3] support changing steering policies in tuntap

From "Michael S. Tsirkin" <mst@redhat.com>
Newsgroups linux.kernel
Subject Re: [PATCH net-next 0/3] support changing steering policies in tuntap
Date 2017-10-01 05:30 +0200
Message-ID <uvD73-52m-1@gated-at.bofh.it> (permalink)
References <uufTb-8kl-3@gated-at.bofh.it> <uusQp-sS-13@gated-at.bofh.it> <uutW9-17I-3@gated-at.bofh.it> <uuBqG-5Tq-25@gated-at.bofh.it> <uuJxU-2Gx-5@gated-at.bofh.it>
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On Thu, Sep 28, 2017 at 12:09:05PM -0400, Willem de Bruijn wrote:
> Programming from the guest is
> indeed different. I don't fully understand that use case.

Generally programming host BPF from guest is a clear win - think DOS
protection. Guest runs logic to detect dos attacks, then passes the
program to host.  Afterwards, host does not need to enter guest if
there's a DOS attack. Saves a ton of cycles.

The difficulty is making it work well, e.g. how do we handle maps?

-- 
MST

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Thread

[PATCH net-next 0/3] support changing steering policies in tuntap Jason Wang <jasowang@redhat.com> - 2017-09-27 10:30 +0200
  [PATCH net-next 3/3] tun: introduce cpu id based steering policy Jason Wang <jasowang@redhat.com> - 2017-09-27 10:30 +0200
  Re: [PATCH net-next 0/3] support changing steering policies in tuntap "Michael S. Tsirkin" <mst@redhat.com> - 2017-09-28 00:20 +0200
    Re: [PATCH net-next 0/3] support changing steering policies in tuntap Willem de Bruijn <willemdebruijn.kernel@gmail.com> - 2017-09-28 01:30 +0200
      Re: [PATCH net-next 0/3] support changing steering policies in tuntap Tom Herbert <tom@herbertland.com> - 2017-09-28 07:10 +0200
        Re: [PATCH net-next 0/3] support changing steering policies in tuntap Jason Wang <jasowang@redhat.com> - 2017-09-28 10:00 +0200
      Re: [PATCH net-next 0/3] support changing steering policies in tuntap Jason Wang <jasowang@redhat.com> - 2017-09-28 09:30 +0200
        Re: [PATCH net-next 0/3] support changing steering policies in tuntap Willem de Bruijn <willemdebruijn.kernel@gmail.com> - 2017-09-28 18:10 +0200
          Re: [PATCH net-next 0/3] support changing steering policies in tuntap Jason Wang <jasowang@redhat.com> - 2017-09-29 11:50 +0200
          Re: [PATCH net-next 0/3] support changing steering policies in tuntap "Michael S. Tsirkin" <mst@redhat.com> - 2017-10-01 05:30 +0200
    Re: [PATCH net-next 0/3] support changing steering policies in tuntap Jason Wang <jasowang@redhat.com> - 2017-09-28 09:00 +0200

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