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Re: [Xen-devel] Re: [Xen-tools] Unable to start xend

To: Konrad Rzeszutek Wilk <konrad.wilk@xxxxxxxxxx>, Onkar Mahajan <kern.devel@xxxxxxxxx>
Subject: Re: [Xen-devel] Re: [Xen-tools] Unable to start xend
From: Boris Derzhavets <bderzhavets@xxxxxxxxx>
Date: Tue, 30 Mar 2010 11:07:11 -0700 (PDT)
Cc: Joseph Coleman <joe.coleman@xxxxxxxxxxxxxxxxxx>, "xen-devel@xxxxxxxxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxxxxxxxx>, "xen-users@xxxxxxxxxxxxxxxxxxx" <xen-users@xxxxxxxxxxxxxxxxxxx>
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Build Xen Dom0 supporting Pvops kernel and load under xen.gz.
View for instance :-
http://lxer.com/module/newswire/view/133477/index.html

Boris.

--- On Tue, 3/30/10, Onkar Mahajan <kern.devel@xxxxxxxxx> wrote:

From: Onkar Mahajan <kern.devel@xxxxxxxxx>
Subject: Re: [Xen-devel] Re: [Xen-tools] Unable to start xend
To: "Konrad Rzeszutek Wilk" <konrad.wilk@xxxxxxxxxx>
Cc: "Joseph Coleman" <joe.coleman@xxxxxxxxxxxxxxxxxx>, "xen-devel@xxxxxxxxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxxxxxxxx>, "xen-users@xxxxxxxxxxxxxxxxxxx" <xen-users@xxxxxxxxxxxxxxxxxxx>
Date: Tuesday, March 30, 2010, 1:46 PM

I have followed the instructions in http://wiki.xensource.com/xenwiki/XenParavirtOps /

Using Xen/paravirt_ops

Building with domU support

exactly ..

  1. Get a current kernel. The latest kernel.org kernel is generally a good choice.
   Done

   2. Configure as normal; you can start with your current .config file
   Done

   3. If building 32 bit kernel make sure you have CONFIG_X86_PAE enabled (which is set by selecting CONFIG_HIGHMEM64G)
   CONFIG_HIGHMEM64G=y,CONFIG_X86_PAE=y
   Done

          * non-PAE mode doesn't work in 2.6.25, and has been dropped altogether from 2.6.26 and newer kernel versions.
   4. Enable these core options:
         1. CONFIG_PARAVIRT_GUEST
         Done - CONFIG_PARAVIRT_GUEST=y
         2. CONFIG_XEN
         Done - CONFIG_XEN=y

   5. And Xen pv device support
         1. CONFIG_HVC_DRIVER and CONFIG_HVC_XEN
         Done - CONFIG_HVC_DRIVER=y
         Done - CONFIG_HVC_XEN=y
       
         2. CONFIG_XEN_BLKDEV_FRONTEND
         Done - CONFIG_XEN_BLKDEV_FRONTEND=y

         3. CONFIG_XEN_NETDEV_FRONTEND
         Done - CONFIG_XEN_NETDEV_FRONTEND=y

   6. And build as usual
      make oldconfig, make -j2 bzImage modules , make -j2 modules_install , make install

On Tue, Mar 30, 2010 at 10:55 PM, Konrad Rzeszutek Wilk <konrad.wilk@xxxxxxxxxx> wrote:
On Tue, Mar 30, 2010 at 10:39:03PM +0530, Onkar Mahajan wrote:
> On Tue, Mar 30, 2010 at 10:33 PM, Joseph Coleman <
> joe.coleman@xxxxxxxxxxxxxxxxxx> wrote:
>
> >  Hate to ask but I assume your booting from the XEN Kernel and are using
> > an account with the appropriate permissions to run Xend?
> >
> Yes,  this is latest xen ( compiled from git clone git://
> git.kernel.org/pub/scm/linux/kernel/git/jeremy/xen.git linux-2.6-xen ) and I
> am running under root
> privileges.

I think you are confusing Linux pvops from the git tree above and Xen. There are two seperate
products.

Look at http://wiki.xensource.com/xenwiki/XenParavirtOps
and pay especailly attention in the grub line. You NEED xen.gz in it.



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