How to use PVH mode in xen

How to use PVH mode in xen

[fantcarl]

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Hi, 
I'm instresting with the PVH mode, is there any wiki available to boot up a PVH guest?
I used the following source code to compile the xen and dom0.
I have tried adding pvh=1 in xl.cfg file as pv mode, but guest still uses qemu device model.


This patch series can also be pulled from this git tree: 
git://xenbits.xen.org/people/gdunlap/xen.git out/pvh-v15 
The kernel code for PVH guests can be found here: 
git://oss.oracle.com/git/mrathor/linux.git pvh.v9-muk-1 
(That repo/branch also contains a config file, pvh-config-file) 


Thanks.




Regards
fantcarl

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Re: How to use PVH mode in xen

[Roger Pau Monné]

On 14/11/13 14:52, fantcarl wrote:
> Hi, 
> I'm instresting with the PVH mode, is there any wiki available to boot
> up a PVH guest?
> I used the following source code to compile the xen and dom0.
> I have tried adding pvh=1 in xl.cfg file as pv mode, but guest still
> uses qemu device model.

PVH guests (as PV guests) use Qemu to provide the backend for raw files,
I guess you are using a raw image as a backend for at least one of your
disks right?

Re: How to use PVH mode in xen

[George Dunlap]

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On 14/11/13 13:52, fantcarl wrote:
> Hi,
> I'm instresting with the PVH mode, is there any wiki available to boot 
> up a PVH guest?
> I used the following source code to compile the xen and dom0.
> I have tried adding pvh=1 in xl.cfg file as pv mode, but guest still 
> uses qemu device model.

If "xl console [domain-name]" gives you the normal PV console, then 
you're running in PVH mode. As Roger said, sometimes qemu is used to 
provide disk backends even to PV guests.

-George


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Re: How to use PVH mode in xen

[Ian Campbell]

On Fri, 2013-11-15 at 10:33 +0000, George Dunlap wrote:
> On 14/11/13 13:52, fantcarl wrote:
> 
> > Hi,  
> > I'm instresting with the PVH mode, is there any wiki available to
> > boot up a PVH guest?
> > I used the following source code to compile the xen and dom0.
> > I have tried adding pvh=1 in xl.cfg file as pv mode, but guest still
> > uses qemu device model.
> 
> If "xl console [domain-name]" gives you the normal PV console, then
> you're running in PVH mode.  As Roger said, sometimes qemu is used to
> provide disk backends even to PV guests.

xl console works for HVM guests too btw, either connecting to the PV
console or the serial device depending on the guest cfg...

Ian.