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Re: [Xen-devel] pvgrub2 for ARM

From: Ian Campbell
Subject: Re: [Xen-devel] pvgrub2 for ARM
Date: Thu, 7 Nov 2013 10:15:45 +0000

On Wed, 2013-11-06 at 19:48 -0700, Bamvor Jian Zhang wrote:
>  >>>Ian Campbell <address@hidden> wrote: 
> > On Wed, 2013-11-06 at 14:00 +0100, Vladimir 'φ-coder/phcoder' Serbinenko 
> > wrote: 
> > > Hello, all. I've ported grub2 to x86_64-xen and i386-xen (PAE only). How 
> > > big is the difference between ARM and i386 when seen as pv guest? 
> >  
> > Very. Xen on ARM uses hardware functionality for second stage paging, so 
> > there is far less porting to do. 
> >  
> > > I have an ARM here but it's a raspberry pi, so no support for xen. Are  
> > there 
> > > machines for under $100 on which xen runs? 
> >  
> > The current platforms are listed on 
> > The one 
> > which is sub $100 is the Allwinner sunxi based stuff. The native Linux 
> > support is community driven by the folks and is 
> > progressing nicely. 
> >  
> > I've got a cubieboard2 (A20 based, <$100) which is a promising platform.
> How about cubietruck? 2G memory plus 1G network is better than cb2. it is
> about 90$.

Ah yes, I forgot about the truck. 

I suppose from Vladimir's point of view it would be rather new and
therefore require more work on the basics to get it going to the point
of doing grub development on it.

> > I've mostly been trying to get (native) SATA going, so my Xen
> > experiments are a bit lightweight, but it does boot. Bamvor has reported
> > success with using the MMC and documented it on the wiki. I think he's
> > using an A31 based STB of some sort.
> i use the NFS as root not the MMC, and the usb storage should work but no
> lucky for me. i test these on A20 STB(mele A100 Dual, only 40$!!)
> successful.

Ah, I thought for some reason you had an A31 based thing?


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