Re: xc_dom_guest_type: image not capable of booting inside a HV M container: Invalid kernel

[Elliott Mitchell <ehem+freebsd@xxxxxxx>]

On Mon, Dec 11, 2023 at 01:41:21PM -0500, Chuck Zmudzinski wrote:
> On 12/11/2023 12:59 PM, Mario Marietto wrote:
> > root@marietto:/mnt/zroot2/zroot2/OS/Chromebook/domU/freebsd-xen/boot-xen/kernel
> >  # file 
> > /mnt/zroot2/zroot2/OS/Chromebook/domU/freebsd-xen/boot-xen/kernel/kernel
> > 
> > ELF 32-bit LSB executable,ARM, EABI5 version 1 (FreeBSD), dynamically 
> > linked, interpreter /red/herring, 
> > BuildID[sha1]=5e6982c9cb67d9c94571b76419142a8c495388d0, for FreeBSD 13.2, 
> > not stripped
> > 
> > root@marietto:/mnt/zroot2/zroot2/OS/Chromebook/domU/freebsd-xen/boot-xen/kernel
> >  # file 
> > /mnt/zroot2/zroot2/OS/Chromebook/domU/freebsd-xen/boot-xen/kernel/kernel.bin
> > 
> > kernel.bin: data 
> 
> This needs to be :
> 
> kernel.bin: Linux kernel ARM boot executable zImage (little-endian)
> 
> > 
> > It does not boot from the kernel.bin file.
> 
> I suggest not trying to direct boot a kernel in Xen on arm unless the file 
> command reports the kernel image is a Linux kernel ARM boot executable zImage 
> (little endian).
> 
> Did you try applying Julien's patch (link is in my earlier message) to add 
> zImage support to FreeBSD? Maybe after applying the patch the kernel.bin file 
> will be in the correct zImage format.
> 
> The patch I linked in the earlier 

Appears FreeBSD-CURRENT removed the last step converting the kernel file
to kernel.bin.  The patch can be readily rebased, but without kernel.bin
that doesn't do too much.  (hmm, see if that can be tracked down...)


A bigger issue is this approach is a maintenance nightmare.  Updating
the kernel requires action from outside the VM.

As such, Anthony Perard would there be any hope for Tianocore/EDK2
gaining support for ARMv6/v7?  The delta should be pretty small.


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