Re: [Xen-devel] any plans to sopport virtio-serial ?

[Vasiliy G Tolstov <v.tolstov@xxxxxxxxx>]

On Tue, 2010-11-23 at 15:07 +0000, Stefano Stabellini wrote:
> On Tue, 23 Nov 2010, Vasiliy G Tolstov wrote:
> > On Tue, 2010-11-23 at 12:19 +0000, Stefano Stabellini wrote:
> > > On Tue, 23 Nov 2010, Vasiliy G Tolstov wrote:
> > > > Hello. Does Xen developers have any plans to support qemu virtio-serial
> > > > or may be some ideas to implement some analog?
> > > > 
> > > > If no, can You provide my some tech info, what i need to write this?
> > > > (xenstore not good for two way communication and have scalability
> > > > problems, for example like tdb suport transactions..) Xway not
> > > > supporting, XenSocket use another protocol and need to rewrite programs
> > > > to support it..
> > >  
> > > You can try to make the current virtio-serial backend in Qemu work on
> > > Xen, that shouldn't be difficult, but it would only work with HVM
> > > guests.
> > > 
> > > Otherwise you can try to use a Xen PV serial for your purposes: multiple
> > > PV serials don't work out of the box, but I have tested them a little
> > > while ago and they do work fine.
> > > You need to hack xl to create multiple PV serials frontend/backend pairs
> > > (see init_console_info in tools/libxl/xl_cmdimpl.c), then you need these
> > > two patches in the guest kernel (unfortunately they are not yet
> > > upstream):
> > > 
> > > - hvc_xen: support PV on HVM consoles
> > > e76b17aae62d13cebd4cc33415b4f0cc72316345
> > > 
> > > - hvc_xen: implement multiconsole support
> > > d6edaed101e089b80257bcbb3141308a97ea489e
> > > 
> > > look at this branch:
> > > 
> > > git://xenbits.xen.org/people/sstabellini/linux-pvhvm.git 
> > > 2.6.36-rc6-pvhvm-v8
> > 
> > I'm clone this repo, but can't find sha commits like
> > e76b17aae62d13cebd4cc33415b4f0cc72316345 or
> > d6edaed101e089b80257bcbb3141308a97ea489e
>  
> If you checkout the branch named 2.6.36-rc6-pvhvm-v8, the two commits in
> question are the last two...
> 
Stefano, is there this branch tested for live migration issues? For
example, if i compile kernel with config, that working on
stable-2.6.32.x does it work on pvhvm branch?

-- 
Vasiliy G Tolstov <v.tolstov@xxxxxxxxx>
Selfip.Ru


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