Re: [PATCH-4.16 v4] xen/efi: Fix Grub2 boot on arm64

[Ian Jackson <iwj@xxxxxxxxxxxxxx>]

Stefano Stabellini writes ("Re: [PATCH-4.16 v4] xen/efi: Fix Grub2 boot on 
arm64"):
> I had a question for Jan, but in reply to the previous version of the
> patch so you might have missed it:
> 
> https://lore.kernel.org/all/alpine.DEB.2.22.394.2111050825240.284830@ubuntu-linux-20-04-desktop/

Ah.  Yes.  I saw that but hadn't realised it might be a blocker.

> However, the concern is about resource utilization and slowness, rather
> than correctness, so I think the version of the patch you committed
> should work OK (unless it turns out that with broken EFI firmware
> opening HandleProtocol/OpenVolume and closing it many times causes
> some sort of error.) So maybe for 4.16 we are OK as is and we can make
> any changes (if necessary) for 4.17.

I hope you are OK with this being in-tree now.  If not please let me
know ASAP and I could revert it.  I'd be happy to consider a followup
patch on its merits, of course.

Thanks,
Ian.