Re: [Xen-devel] Xen on ARM DT based boot protocol

[Stefano Stabellini <stefano.stabellini@xxxxxxxxxxxxx>]

On Thu, 23 May 2013, David Vrabel wrote:
> On 23/05/13 13:39, Stefano Stabellini wrote:
> > Hi Ian,
> > Andre was pointing out to me today that the current boot protocol has a
> > problem:
> > 
> > 
> > chosen {
> >               bootargs = "dom0_mem=128M console=com1,vga";
> >               xen,dom0-bootargs = "earlyprintk=xenboot console=ttyAMA1 
> > root=/dev/mmcblk0 debug rw init=/bin/bash";
> > };
> > 
> > 
> > because we are using bootargs for Xen arguments, the bootloader cannot
> > just pass the same two lines to Xen on ARM and to Linux on ARM.
> 
> I think it is unlikely the command line arguments for Linux are the same
> for bare metal and dom0.  Even in this example here you have a
> Xen-specific option (earlyprintk=xenboot).
 
Actually that is not true, in fact in the example above the only
difference is earlyprintk=xenboot that is just a debug option.

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