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SubjectRe: [PATCH] Add I/O hypercalls for i386 paravirt
Avi Kivity wrote:
> Since this is only for newer kernels, won't updating the driver to use
> a hypercall be more efficient? Or is this for existing out-of-tree
> drivers?

Actually, it is for in-tree drivers that we emulate but don't want to
pollute, and one out of tree driver (that will hopefully be in tree
soon!) that has no way to determine if making hypercalls is acceptable.

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