Re: [Xen-devel] [PATCH 8/8] raisin: RFC Add blktap2 as an external tree

[Ian Campbell <ian.campbell@xxxxxxxxxx>]

On Mon, 2015-04-20 at 18:05 +0100, Stefano Stabellini wrote:
> > > I think we need to disable the build on architectures other than x86,
> > > see grub for example

Eventually we might want to build our own grub on ARM in order to pick
up Fu Wei's multiboot for arm64 patches, until they enter distros?

Or maybe Raisin on UEFI should be calling efibootmgr to register Xen
directly with the BIOS, and creating a xen.cfg in /boot, i.e. the way it
currently works even on x86.

> > Do we?  There's no reason a blktap2 kernel module couldn't be built on
> > ARM, is there?
> 
> Maybe not, but I am pretty sure that it doesn't work at the moment. I
> don't think that the userspace stuff even compiles on ARM.
> Eventually we might have blktap on ARM, but I don't want to enable
> stuff in Raisin that we know it does not work.

Especially if it is already to a greater or lesser extent deprecated (in
favour of eventual blktap3) even on x86.

> > And in any case the long-term plan is to get blktap3 working as well,
> > which doesn't require kernel-space drivers.
> > 
> > Or do you mean on systems other than Linux?
> 
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