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Re: GSoC: the plan for the project network virtualization
From: |
olafBuddenhagen |
Subject: |
Re: GSoC: the plan for the project network virtualization |
Date: |
Wed, 11 Jun 2008 00:12:41 +0200 |
User-agent: |
Mutt/1.5.17+20080114 (2008-01-14) |
Hi,
On Sat, Jun 07, 2008 at 10:12:21PM +0200, zhengda wrote:
> 1) hypervisor creates a virtual network interface
> How is the programming interface like for the virtual network
> interface? I mean, is the pfinet still able to open it with
> device_open()?
Well, as I mentioned in the original discussion, both approaches are
possible: Either there is a special para-virtualized interface which
pfinets must explicitely implement so they can talk to the hypervisor.
Or the hypervisor provides a virtual network interface that looks just
like the actual Mach-provided one.
The first approach is simpler on the hypervisor side, but requires
changes in pfinet, and isn't fully transparent in usage.
Para-virtualization also can be more efficient -- but I'm not sure it
would make any difference here.
I personally think the fully virtualized approach is more elegant, but
YMMV.
> If pfinet can open the interface with device_open(), I think we
> need to write another program like boot to give pfinet the pseudo
> master device port and help pfinet open the virtual network
> interface.
Why another program? I'm pretty sure "boot" is the right place to handle
this.
> The second question is: who can create the virtual network
> interface?
By default, the user who invokes the hypervisor. (I.e. the one running
"boot".)
More sophisticated policy control is certainly possible, but I can't
think of any use case right now.
> I still don't understand who should check and control the packet.
I'm not sure I understand the question. I thought it is rather clear
that the hypervisor does the checks?...
-antrik-
- Re: GSoC: the plan for the project network virtualization, olafBuddenhagen, 2008/06/03
- Re: GSoC: the plan for the project network virtualization, zhengda, 2008/06/03
- Re: GSoC: the plan for the project network virtualization, zhengda, 2008/06/07
- Re: GSoC: the plan for the project network virtualization,
olafBuddenhagen <=
- Re: GSoC: the plan for the project network virtualization, zhengda, 2008/06/13
- Re: GSoC: the plan for the project network virtualization, zhengda, 2008/06/14
- Message not available
- Re: GSoC: the plan for the project network virtualization, olafBuddenhagen, 2008/06/18
- Re: GSoC: the plan for the project network virtualization, zhengda, 2008/06/22
- Re: GSoC: the plan for the project network virtualization, olafBuddenhagen, 2008/06/26
- Re: GSoC: the plan for the project network virtualization, zhengda, 2008/06/26
- Re: GSoC: the plan for the project network virtualization, olafBuddenhagen, 2008/06/28
- Re: GSoC: the plan for the project network virtualization, zhengda, 2008/06/30