Re: [RFC, PATCH 0/24] VMI i386 Linux virtualization interface proposal
From: Joshua LeVasseur
Date: Mon Mar 13 2006 - 13:52:39 EST
On Mar 13, 2006, at 19:42, Arjan van de Ven wrote:
On Mon, 2006-03-13 at 10:30 -0800, Zachary Amsden wrote:
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, while letting you have some of
the benefits of the new hypervisor. The upgrade and recompile game
can quickly end in a stalemate when you have packages with
conflicting dependencies (one package requires the old version, and
the other package requires the new version).
Josh
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