Re: [Xen-users] Load Xen domU (guest) kernel over TFTP

[Julien Grall <julien@xxxxxxx>]

On 01/02/2020 12:04, pierre-philipp braun wrote:
> > However, I am not entirely sure how this would solve the problem here.
> > Even if you manage to pack the two kernels, how do you pass it to the
> > guest?
> I am sorry, I misread the original post.  I though it was a matter of
> loading xen and dom0 through TFTP, 
EFI, GRUB, U-boot, are able to deal with Xen on Arm out-of-the-box with 
more or less pain :).
For EFI, this is the same as for x86, i.e you write a configuration file 
specifying where all your modules resides.
For GRUB, recent versions are able to deal with the Xen on Arm multiboot 
protocol. The commands to load Xen/Linux... are the same as for x86. For 
older version, you could chainload Xen and use the same configuration 
file as for EFI.
For U-boot, there is no direct support for Xen on Arm mutiboot. But you 
could write you own script to load all the modules and generate the 
multiboot nodes. This is a bit of a pain, although we provide some 
example on the wiki and Stefano Stabellini has been working on a tool to 
generate everything for you. More recent version of U-boot are able to 
load EFI application. So you could load GRUB as an EFI app making U-boot 
nicer to use.
Cheers,

--
Julien Grall

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