xen.git branches

xen.git branches

[Jeremy Fitzhardinge]

Another month, another branch shuffle to confuse everyone ;)

I've added a couple of new branches:

    * xen/stable-2.6.31.x - This is currently identical to xen/master. 
      As its name suggests, it is going to track the 2.6.31.x stable
      tree.  I don't think there'll be any more 2.6.31.x kernels
      released, so this will just have Xen-related bugfixes.  Required
      for pre-Xen 4/3.4.3.
    * xen/stable-2.6.32.x - This is currently an alias of xen/stable. 
      2.6.32 is going to be a long-term maintained kernel, so this
      branch will likely be active for a long time.  It will get both
      Linux updates and Xen bugfixes+features.  Requires Xen 4 or 3.4.3.

So what about the other branches?

    * xen/stable - will always be the most recent "stable" kernel.  For
      now it will track stable-2.6.32.x, but when we move the main
      development focus to 2.6.33 and beyond, it will track that stable
      kernel.  It will be the default branch for xen.git.
    * xen/master - I haven't quite worked out what to do with this in
      the medium term.  I'm thinking that I'll make xen/master an alias
      for xen/stable, since people are already using it as a default
      branch.  At the moment its still stable-2.6.31.x.
    * xen/next - Active development branch.  Generally bleeding-edge.


I'm not quite ready to move xen/next into bleeding-edge phase yet.  The 
2.6.32 tree is still missing a few things and needs more testing before 
I'm happy with it.

     J

Re: xen.git branches

[Fantu]

Now i start to use xen/stable, what are the feature missing?

Jeremy Fitzhardinge wrote:
> 
> Another month, another branch shuffle to confuse everyone ;)
> 
> I've added a couple of new branches:
> 
>     * xen/stable-2.6.31.x - This is currently identical to xen/master. 
>       As its name suggests, it is going to track the 2.6.31.x stable
>       tree.  I don't think there'll be any more 2.6.31.x kernels
>       released, so this will just have Xen-related bugfixes.  Required
>       for pre-Xen 4/3.4.3.
>     * xen/stable-2.6.32.x - This is currently an alias of xen/stable. 
>       2.6.32 is going to be a long-term maintained kernel, so this
>       branch will likely be active for a long time.  It will get both
>       Linux updates and Xen bugfixes+features.  Requires Xen 4 or 3.4.3.
> 
> So what about the other branches?
> 
>     * xen/stable - will always be the most recent "stable" kernel.  For
>       now it will track stable-2.6.32.x, but when we move the main
>       development focus to 2.6.33 and beyond, it will track that stable
>       kernel.  It will be the default branch for xen.git.
>     * xen/master - I haven't quite worked out what to do with this in
>       the medium term.  I'm thinking that I'll make xen/master an alias
>       for xen/stable, since people are already using it as a default
>       branch.  At the moment its still stable-2.6.31.x.
>     * xen/next - Active development branch.  Generally bleeding-edge.
> 
> 
> I'm not quite ready to move xen/next into bleeding-edge phase yet.  The 
> 2.6.32 tree is still missing a few things and needs more testing before 
> I'm happy with it.
> 
>      J
> 
> _______________________________________________
> Xen-devel mailing list
> Xen-devel@lists.xensource.com
> http://lists.xensource.com/xen-devel
> 
> 

-- 
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Re: xen.git branches

[Jeremy Fitzhardinge]

On 03/03/2010 11:18 PM, Fantu wrote:
> Now i start to use xen/stable, what are the feature missing?
>    

ACPI power management is the main one.  pci passthrough was only added 
yesterday, so it could do with some testing.

     J

Re: xen.git branches

[Konrad Rzeszutek Wilk]

On Thu, Mar 04, 2010 at 10:25:26AM -0800, Jeremy Fitzhardinge wrote:
> On 03/03/2010 11:18 PM, Fantu wrote:
>> Now i start to use xen/stable, what are the feature missing?
>>    
>
> ACPI power management is the main one.  pci passthrough was only added  
> yesterday, so it could do with some testing.

Thought the PCI backend is not yet in. So you are left with this funny
position of running 2.6.31.x as Dom0 and 2.6.32.x for DomU to do PCI
passthrough. Should have those patches (pciback) soon enough though.

Re: xen.git branches

[Jeremy Fitzhardinge]

On 03/04/2010 10:20 AM, Konrad Rzeszutek Wilk wrote:
> On Thu, Mar 04, 2010 at 10:25:26AM -0800, Jeremy Fitzhardinge wrote:
>    
>> On 03/03/2010 11:18 PM, Fantu wrote:
>>      
>>> Now i start to use xen/stable, what are the feature missing?
>>>
>>>        
>> ACPI power management is the main one.  pci passthrough was only added
>> yesterday, so it could do with some testing.
>>      
> Thought the PCI backend is not yet in. So you are left with this funny
> position of running 2.6.31.x as Dom0 and 2.6.32.x for DomU to do PCI
> passthrough. Should have those patches (pciback) soon enough though.
>    

Ah, OK.  That too.

     J

Re: xen.git branches

[Sander Eikelenboom]

Are there any signs of pv-usb support coming ?

Thursday, March 4, 2010, 7:25:26 PM, you wrote:

> On 03/03/2010 11:18 PM, Fantu wrote:
>> Now i start to use xen/stable, what are the feature missing?
>>    

> ACPI power management is the main one.  pci passthrough was only added 
> yesterday, so it could do with some testing.

>      J





-- 
Best regards,
 Sander                            mailto:linux@eikelenboom.it

Re: xen.git branches

[Jeremy Fitzhardinge]

On 03/04/2010 11:24 AM, Sander Eikelenboom wrote:
> Are there any signs of pv-usb support coming ?
>    

I have not seen any work in that area.

     J

Re: xen.git branches

[Noboru Iwamatsu]

Hi,

> On 03/04/2010 11:24 AM, Sander Eikelenboom wrote:
>> Are there any signs of pv-usb support coming ?
>
> I have not seen any work in that area.
>

In the jump between 2.6.18 and current kernel,
several important changes are required for handling
the urbs and its buffers.
Because, the manner of the host controller and the
urb's behavior have been modified on the upstream.

I'm now working on it, I hope I can post it in late
this month.

Thanks,
Noboru.

Re: xen.git branches

[Pasi Kärkkäinen]

On Fri, Mar 05, 2010 at 09:29:14AM +0900, Noboru Iwamatsu wrote:
> Hi,
>
>> On 03/04/2010 11:24 AM, Sander Eikelenboom wrote:
>>> Are there any signs of pv-usb support coming ?
>>
>> I have not seen any work in that area.
>>
>
> In the jump between 2.6.18 and current kernel,
> several important changes are required for handling
> the urbs and its buffers.
> Because, the manner of the host controller and the
> urb's behavior have been modified on the upstream.
>
> I'm now working on it, I hope I can post it in late
> this month.
>

Excellent news! Many users have been curious about pvusb lately.

-- Pasi

Re: xen.git branches / pvops kernel pvusb support

[Pasi Kärkkäinen]

On Fri, Mar 05, 2010 at 09:29:14AM +0900, Noboru Iwamatsu wrote:
> Hi,
>
>> On 03/04/2010 11:24 AM, Sander Eikelenboom wrote:
>>> Are there any signs of pv-usb support coming ?
>>
>> I have not seen any work in that area.
>>
>
> In the jump between 2.6.18 and current kernel,
> several important changes are required for handling
> the urbs and its buffers.
> Because, the manner of the host controller and the
> urb's behavior have been modified on the upstream.
>
> I'm now working on it, I hope I can post it in late
> this month.
>

Btw Novell seems to have a forward-port of the pvusb stuff
to their 2.6.32 xenlinux kernel (non pvops).

See:
http://lists.xensource.com/archives/html/xen-devel/2010-03/msg00723.html

Dunno if it helps with the pvops port though :)

-- Pasi

Re: xen.git branches / pvops kernel pvusb support

[Jeremy Fitzhardinge]

On 03/18/2010 04:19 PM, Pasi Kärkkäinen wrote:
> On Fri, Mar 05, 2010 at 09:29:14AM +0900, Noboru Iwamatsu wrote:
>    
>> Hi,
>>
>>      
>>> On 03/04/2010 11:24 AM, Sander Eikelenboom wrote:
>>>        
>>>> Are there any signs of pv-usb support coming ?
>>>>          
>>> I have not seen any work in that area.
>>>
>>>        
>> In the jump between 2.6.18 and current kernel,
>> several important changes are required for handling
>> the urbs and its buffers.
>> Because, the manner of the host controller and the
>> urb's behavior have been modified on the upstream.
>>
>> I'm now working on it, I hope I can post it in late
>> this month.
>>
>>      
> Btw Novell seems to have a forward-port of the pvusb stuff
> to their 2.6.32 xenlinux kernel (non pvops).
>
> See:
> http://lists.xensource.com/archives/html/xen-devel/2010-03/msg00723.html
>
> Dunno if it helps with the pvops port though :)
>    

It should do in the sense that that kind of driver stuff doesn't have 
much dependency on pvops vs non-pvops.  Other things may be different 
which could complicate things (and ideally we'd like to take things that 
a close to upstreamable).

     J

Re: xen.git branches / pvops kernel pvusb support

[Pasi Kärkkäinen]

On Fri, Mar 19, 2010 at 01:19:08AM +0200, Pasi Kärkkäinen wrote:
> On Fri, Mar 05, 2010 at 09:29:14AM +0900, Noboru Iwamatsu wrote:
> > Hi,
> >
> >> On 03/04/2010 11:24 AM, Sander Eikelenboom wrote:
> >>> Are there any signs of pv-usb support coming ?
> >>
> >> I have not seen any work in that area.
> >>
> >
> > In the jump between 2.6.18 and current kernel,
> > several important changes are required for handling
> > the urbs and its buffers.
> > Because, the manner of the host controller and the
> > urb's behavior have been modified on the upstream.
> >
> > I'm now working on it, I hope I can post it in late
> > this month.
> >
> 
> Btw Novell seems to have a forward-port of the pvusb stuff
> to their 2.6.32 xenlinux kernel (non pvops).
> 
> See:
> http://lists.xensource.com/archives/html/xen-devel/2010-03/msg00723.html
> 
> Dunno if it helps with the pvops port though :)
> 

Noboru: Did you have time to take a look at this? 

-- Pasi

Re: xen.git branches / pvops kernel pvusb support

[Pasi Kärkkäinen]

On Mon, Apr 12, 2010 at 04:05:22PM +0300, Pasi Kärkkäinen wrote:
> On Fri, Mar 19, 2010 at 01:19:08AM +0200, Pasi Kärkkäinen wrote:
> > On Fri, Mar 05, 2010 at 09:29:14AM +0900, Noboru Iwamatsu wrote:
> > > Hi,
> > >
> > >> On 03/04/2010 11:24 AM, Sander Eikelenboom wrote:
> > >>> Are there any signs of pv-usb support coming ?
> > >>
> > >> I have not seen any work in that area.
> > >>
> > >
> > > In the jump between 2.6.18 and current kernel,
> > > several important changes are required for handling
> > > the urbs and its buffers.
> > > Because, the manner of the host controller and the
> > > urb's behavior have been modified on the upstream.
> > >
> > > I'm now working on it, I hope I can post it in late
> > > this month.
> > >
> > 
> > Btw Novell seems to have a forward-port of the pvusb stuff
> > to their 2.6.32 xenlinux kernel (non pvops).
> > 
> > See:
> > http://lists.xensource.com/archives/html/xen-devel/2010-03/msg00723.html
> > 
> > Dunno if it helps with the pvops port though :)
> > 
> 
> Noboru: Did you have time to take a look at this? 
> 

I added this task to:
http://wiki.xensource.com/xenwiki/XenDevelopmentProjects

"Porting Xen PVUSB drivers to pvops kernel"

Hopefully someone will pick it up soon :)

-- Pasi

Re: xen.git branches / pvops kernel pvusb support

[Sander Eikelenboom]

Hello Pasi,

Monday, June 7, 2010, 4:59:16 PM, you wrote:

> On Mon, Apr 12, 2010 at 04:05:22PM +0300, Pasi Kärkkäinen wrote:
>> On Fri, Mar 19, 2010 at 01:19:08AM +0200, Pasi Kärkkäinen wrote:
>> > On Fri, Mar 05, 2010 at 09:29:14AM +0900, Noboru Iwamatsu wrote:
>> > > Hi,
>> > >
>> > >> On 03/04/2010 11:24 AM, Sander Eikelenboom wrote:
>> > >>> Are there any signs of pv-usb support coming ?
>> > >>
>> > >> I have not seen any work in that area.
>> > >>
>> > >
>> > > In the jump between 2.6.18 and current kernel,
>> > > several important changes are required for handling
>> > > the urbs and its buffers.
>> > > Because, the manner of the host controller and the
>> > > urb's behavior have been modified on the upstream.
>> > >
>> > > I'm now working on it, I hope I can post it in late
>> > > this month.
>> > >
>> > 
>> > Btw Novell seems to have a forward-port of the pvusb stuff
>> > to their 2.6.32 xenlinux kernel (non pvops).
>> > 
>> > See:
>> > http://lists.xensource.com/archives/html/xen-devel/2010-03/msg00723.html
>> > 
>> > Dunno if it helps with the pvops port though :)
>> > 
>> 
>> Noboru: Did you have time to take a look at this? 
>> 

> I added this task to:
> http://wiki.xensource.com/xenwiki/XenDevelopmentProjects

> "Porting Xen PVUSB drivers to pvops kernel"

> Hopefully someone will pick it up soon :)

> -- Pasi

Perhaps something could be combined with the USB over IP in linux-staging ?

Don't know how difficult it is to make it more generic and use it as USB over event channel as well.


-- 
Best regards,
 Sander                            mailto:linux@eikelenboom.it

Re: porting pvusb drivers to pvops kernel

[Pasi Kärkkäinen]

On Mon, Jun 07, 2010 at 05:59:16PM +0300, Pasi Kärkkäinen wrote:
> On Mon, Apr 12, 2010 at 04:05:22PM +0300, Pasi Kärkkäinen wrote:
> > On Fri, Mar 19, 2010 at 01:19:08AM +0200, Pasi Kärkkäinen wrote:
> > > On Fri, Mar 05, 2010 at 09:29:14AM +0900, Noboru Iwamatsu wrote:
> > > > Hi,
> > > >
> > > >> On 03/04/2010 11:24 AM, Sander Eikelenboom wrote:
> > > >>> Are there any signs of pv-usb support coming ?
> > > >>
> > > >> I have not seen any work in that area.
> > > >>
> > > >
> > > > In the jump between 2.6.18 and current kernel,
> > > > several important changes are required for handling
> > > > the urbs and its buffers.
> > > > Because, the manner of the host controller and the
> > > > urb's behavior have been modified on the upstream.
> > > >
> > > > I'm now working on it, I hope I can post it in late
> > > > this month.
> > > >
> > > 
> > > Btw Novell seems to have a forward-port of the pvusb stuff
> > > to their 2.6.32 xenlinux kernel (non pvops).
> > > 
> > > See:
> > > http://lists.xensource.com/archives/html/xen-devel/2010-03/msg00723.html
> > > 
> > > Dunno if it helps with the pvops port though :)
> > > 
> > 
> > Noboru: Did you have time to take a look at this? 
> > 
> 
> I added this task to:
> http://wiki.xensource.com/xenwiki/XenDevelopmentProjects
> 
> "Porting Xen PVUSB drivers to pvops kernel"
> 

Anyone interested in porting pvusb drivers? 

-- Pasi

Re: porting pvusb drivers to pvops kernel

[Sander Eikelenboom]

Tuesday, August 17, 2010, 9:00:41 PM, you wrote:

> On Mon, Jun 07, 2010 at 05:59:16PM +0300, Pasi Kärkkäinen wrote:
>> On Mon, Apr 12, 2010 at 04:05:22PM +0300, Pasi Kärkkäinen wrote:
>> > On Fri, Mar 19, 2010 at 01:19:08AM +0200, Pasi Kärkkäinen wrote:
>> > > On Fri, Mar 05, 2010 at 09:29:14AM +0900, Noboru Iwamatsu wrote:
>> > > > Hi,
>> > > >
>> > > >> On 03/04/2010 11:24 AM, Sander Eikelenboom wrote:
>> > > >>> Are there any signs of pv-usb support coming ?
>> > > >>
>> > > >> I have not seen any work in that area.
>> > > >>
>> > > >
>> > > > In the jump between 2.6.18 and current kernel,
>> > > > several important changes are required for handling
>> > > > the urbs and its buffers.
>> > > > Because, the manner of the host controller and the
>> > > > urb's behavior have been modified on the upstream.
>> > > >
>> > > > I'm now working on it, I hope I can post it in late
>> > > > this month.
>> > > >
>> > > 
>> > > Btw Novell seems to have a forward-port of the pvusb stuff
>> > > to their 2.6.32 xenlinux kernel (non pvops).
>> > > 
>> > > See:
>> > > http://lists.xensource.com/archives/html/xen-devel/2010-03/msg00723.html
>> > > 
>> > > Dunno if it helps with the pvops port though :)
>> > > 
>> > 
>> > Noboru: Did you have time to take a look at this? 
>> > 
>> 
>> I added this task to:
>> http://wiki.xensource.com/xenwiki/XenDevelopmentProjects
>> 
>> "Porting Xen PVUSB drivers to pvops kernel"
>> 

> Anyone interested in porting pvusb drivers? 

> -- Pasi

I'm afraid i can't code that well, but i still wonder if some bits could be shared with the usb over ip project (http://usbip.sourceforge.net/#about).
Where the (tcp/)ip could be swapped for a more xen specific transport protocol if required. It has had it ups and downs in development activity and I haven't used it for a long time, and it's in staging tree of mainline kernel for a while now.

--
Sander

Re: porting pvusb drivers to pvops kernel

[Noboru Iwamatsu]

Hi,

I was preparing to post the pvops version of pvusb,
but, it has not finished and is still pending.

I don't have enough time for it for the time being.
I hope I can post it until the next xen release.

If someone want to work for it, I'm okay with that.

 > I'm afraid i can't code that well, but i still wonder if some bits 
could be shared with the usb over ip project 
(http://usbip.sourceforge.net/#about).
 > Where the (tcp/)ip could be swapped for a more xen specific transport 
protocol if required. It has had it ups and downs in development 
activity and I haven't used it for a long time, and it's in staging tree 
of mainline kernel for a while now.

Internal of the Pvusb and the usbip are very different
except for the point that they use usb drivers interface.

I don't think it's good idea to share the code.

Thanks,
Noboru

Sander Eikelenboom wrote:
> Tuesday, August 17, 2010, 9:00:41 PM, you wrote:
>
>> On Mon, Jun 07, 2010 at 05:59:16PM +0300, Pasi Kärkkäinen wrote:
>>> On Mon, Apr 12, 2010 at 04:05:22PM +0300, Pasi Kärkkäinen wrote:
>>>> On Fri, Mar 19, 2010 at 01:19:08AM +0200, Pasi Kärkkäinen wrote:
>>>>> On Fri, Mar 05, 2010 at 09:29:14AM +0900, Noboru Iwamatsu wrote:
>>>>>> Hi,
>>>>>>
>>>>>>> On 03/04/2010 11:24 AM, Sander Eikelenboom wrote:
>>>>>>>> Are there any signs of pv-usb support coming ?
>>>>>>>
>>>>>>> I have not seen any work in that area.
>>>>>>>
>>>>>>
>>>>>> In the jump between 2.6.18 and current kernel,
>>>>>> several important changes are required for handling
>>>>>> the urbs and its buffers.
>>>>>> Because, the manner of the host controller and the
>>>>>> urb's behavior have been modified on the upstream.
>>>>>>
>>>>>> I'm now working on it, I hope I can post it in late
>>>>>> this month.
>>>>>>
>>>>>
>>>>> Btw Novell seems to have a forward-port of the pvusb stuff
>>>>> to their 2.6.32 xenlinux kernel (non pvops).
>>>>>
>>>>> See:
>>>>> http://lists.xensource.com/archives/html/xen-devel/2010-03/msg00723.html
>>>>>
>>>>> Dunno if it helps with the pvops port though :)
>>>>>
>>>>
>>>> Noboru: Did you have time to take a look at this?
>>>>
>>>
>>> I added this task to:
>>> http://wiki.xensource.com/xenwiki/XenDevelopmentProjects
>>>
>>> "Porting Xen PVUSB drivers to pvops kernel"
>>>
>
>> Anyone interested in porting pvusb drivers?
>
>> -- Pasi
>
> I'm afraid i can't code that well, but i still wonder if some bits could be shared with the usb over ip project (http://usbip.sourceforge.net/#about).
> Where the (tcp/)ip could be swapped for a more xen specific transport protocol if required. It has had it ups and downs in development activity and I haven't used it for a long time, and it's in staging tree of mainline kernel for a while now.
>
> --
> Sander
>
>
> _______________________________________________
> Xen-devel mailing list
> Xen-devel@lists.xensource.com
> http://lists.xensource.com/xen-devel

RE: porting pvusb drivers to pvops kernel

[James Harper]

> > > Noboru: Did you have time to take a look at this?
> > >
> >
> > I added this task to:
> > http://wiki.xensource.com/xenwiki/XenDevelopmentProjects
> >
> > "Porting Xen PVUSB drivers to pvops kernel"
> >
> 
> Anyone interested in porting pvusb drivers?
> 

I ported the backend driver a while back. There were a few memory leaks but it seemed to work okay. I ported it because I was working on the frontend in GPLPV so it hasn't had a lot of testing. I can dig up the code if anyone is interested - it was ported against 2.6.2x I think so there may be a bit of bitrot vs the current 2.6.32 pvops kernel but hopefully most of the hard work has been done.

The frontend driver should be easier I think, but I don't have any time for it.

James

Re: porting pvusb drivers to pvops kernel

[Pasi Kärkkäinen]

On Wed, Aug 18, 2010 at 10:08:23AM +1000, James Harper wrote:
> > > > Noboru: Did you have time to take a look at this?
> > > >
> > >
> > > I added this task to:
> > > http://wiki.xensource.com/xenwiki/XenDevelopmentProjects
> > >
> > > "Porting Xen PVUSB drivers to pvops kernel"
> > >
> > 
> > Anyone interested in porting pvusb drivers?
> > 
> 
> I ported the backend driver a while back. There were a few memory leaks but it seemed to work okay. 
> I ported it because I was working on the frontend in GPLPV so it hasn't had a lot of testing. 
> I can dig up the code if anyone is interested - it was ported against 2.6.2x I think so there 
> may be a bit of bitrot vs the current 2.6.32 pvops kernel but hopefully most of the hard work has been done.

Yeah, please post it!

What was the 'source' for the port? I think Novell guys fixed some bugs in the pvusb drivers
for their 2.6.32 SLES11SP1 (xenlinux) kernel..

> 
> The frontend driver should be easier I think, but I don't have any time for it.
> 

Ok. I might take a look at it myself, when I find the time..

-- Pasi