[Xen-devel] Re: [RFC, PATCH 0/24] VMI i386 Linux virtualization interface proposal

[Jan Engelhardt <jengelh@xxxxxxxxxxxxxxx>]

>> > and gives hypervisors room to grow while maintaining
>> > binary compatibility with already released kernels.
>> 
>> that I buy for binary only hypervisors. But in an open source world I'll
>> buy this a LOT less as being relevant.
>
> Binary compatibility to Linux is pretty important for applications.  Even
> though Apache is open source, I don't want to recompile it for every new Linux
> kernel.  Fortunately I don't have to, because glibc abstracts the Linux kernel
> interface.  Consider VMI in the same role as glibc -- when the hypervisor
> changes, VMI maintains compatibility with your pre-existing infrastructure,

VMI = kernel code (AFAIU)

I would rather like a user-space-based compat layer.


Jan Engelhardt
-- 

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