re: Kernel config for Linux guest

[Pry Mar <pryorm09@xxxxxxxxx>]

Hello,

You could recompile that 6.12.x kernel and turn-off the zstd compression, but you could also recompile grub2 and add the patches from Logan Gunthorpe, posted here: 

https://cgit.git.savannah.gnu.org/cgit/grub.git/log/

This was my approach using the official source and delta from Trixie. The new xen-kernels in grub-xen-host will now support the required zstdio iofilter. 

The resulting xen-kernels are here: 

https://repo.dynavirt.com/xen/debian/trixie-nmu/grub2/pvgrub2/

The upstream grub2 has a new release of grub-2.14~rc1 from 2 days ago. 

cheers,

PryMar56