[Xen-devel] Re: A proposal - binary

[Jeremy Fitzhardinge <jeremy@xxxxxxxx>]

David Lang wrote:
> if it's only a source-level API this implies that when you move your 
> host kernel from 2.6.19 to 2.6.25 you would need to recompile your 
> 2.6.19 guest kernel to support the modifications. where are the 
> patches going to come from to do this?
No, the low-level interface between the kernel is an ABI, which will be 
as stable as your hypervisor author/vendor wants it to be (which is 
generally "very stable").  The question is whether that low-level 
interface is exposed to the rest of the kernel directly, or hidden 
behind a kernel-internal source-level API.
   J

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