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



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).

> It would make their life easier if we had instead:
> 
> 
> chosen {
>               xen,xen-bootarg = "dom0_mem=128M console=com1,vga";
>               bootargs = "earlyprintk=xenboot console=ttyAMA1 
> root=/dev/mmcblk0 debug rw init=/bin/bash";
> };

David

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