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Re: [Qemu-devel] snabbswitch integration with QEMU for userspace etherne
From: |
Anthony Liguori |
Subject: |
Re: [Qemu-devel] snabbswitch integration with QEMU for userspace ethernet I/O |
Date: |
Tue, 28 May 2013 13:55:31 -0500 |
User-agent: |
Notmuch/0.15.2+77~g661dcf8 (http://notmuchmail.org) Emacs/23.3.1 (x86_64-pc-linux-gnu) |
"Michael S. Tsirkin" <address@hidden> writes:
> On Tue, May 28, 2013 at 12:00:38PM -0500, Anthony Liguori wrote:
>> Julian Stecklina <address@hidden> writes:
>>
>>
>> I don't see any compelling reason to do something like this. It's
>> jumping through a tremendous number of hoops to avoid putting code that
>> belongs in QEMU in tree.
>>
>> Regards,
>>
>> Anthony Liguori
>>
>> >
>> > Julian
>
> OTOH an in-tree device that runs in a separate process would
> be useful e.g. for security.
An *in-tree* device would at least be a reasonable place to have a discussion.
I still think it's pretty hard to make work beyond just a hack.
> For example, we could limit a virtio-net device process
> to only access tap and vhost files.
Stefano et al from the Xen community have some interest in this. I
believe they've done some initial prototyping already.
Regards,
Anthony Liguori
> We can kill this process if there's a bug
> with the result that NIC gets stalled but everything else
> keeps going.
> Possibly restart on next guest reset.
> There could be other advantages.
>
> --
> MST
- Re: [Qemu-devel] snabbswitch integration with QEMU for userspace ethernet I/O, (continued)
- Re: [Qemu-devel] [snabb-devel:276] Re: snabbswitch integration with QEMU for userspace ethernet I/O, Luke Gorrie, 2013/05/28
- Re: [Qemu-devel] [snabb-devel:276] Re: snabbswitch integration with QEMU for userspace ethernet I/O, Julian Stecklina, 2013/05/28
- Re: [Qemu-devel] [snabb-devel:280] Re: snabbswitch integration with QEMU for userspace ethernet I/O, Luke Gorrie, 2013/05/28
- Re: [Qemu-devel] [snabb-devel:276] Re: snabbswitch integration with QEMU for userspace ethernet I/O, Luke Gorrie, 2013/05/28
- Re: [Qemu-devel] [snabb-devel:276] Re: snabbswitch integration with QEMU for userspace ethernet I/O, Julian Stecklina, 2013/05/28
- Re: [Qemu-devel] snabbswitch integration with QEMU for userspace ethernet I/O, Anthony Liguori, 2013/05/28
- Re: [Qemu-devel] snabbswitch integration with QEMU for userspace ethernet I/O, Michael S. Tsirkin, 2013/05/28
- Re: [Qemu-devel] snabbswitch integration with QEMU for userspace ethernet I/O,
Anthony Liguori <=
- Re: [Qemu-devel] snabbswitch integration with QEMU for userspace ethernet I/O, Stefano Stabellini, 2013/05/29
- Re: [Qemu-devel] snabbswitch integration with QEMU for userspace ethernet I/O, Michael S. Tsirkin, 2013/05/29
- Re: [Qemu-devel] snabbswitch integration with QEMU for userspace ethernet I/O, Stefano Stabellini, 2013/05/29
- Re: [Qemu-devel] snabbswitch integration with QEMU for userspace ethernet I/O, Stefan Hajnoczi, 2013/05/29
- Re: [Qemu-devel] snabbswitch integration with QEMU for userspace ethernet I/O, Michael S. Tsirkin, 2013/05/29
- Re: [Qemu-devel] snabbswitch integration with QEMU for userspace ethernet I/O, Stefan Hajnoczi, 2013/05/29
- Re: [Qemu-devel] snabbswitch integration with QEMU for userspace ethernet I/O, Michael S. Tsirkin, 2013/05/29
- Re: [Qemu-devel] snabbswitch integration with QEMU for userspace ethernet I/O, Julian Stecklina, 2013/05/29
- Re: [Qemu-devel] snabbswitch integration with QEMU for userspace ethernet I/O, ronnie sahlberg, 2013/05/29
- Re: [Qemu-devel] snabbswitch integration with QEMU for userspace ethernet I/O, Stefan Hajnoczi, 2013/05/30