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Re: [Xen-devel] 32/64-bit hypercall interface

On Monday 03 October 2005 17:00, Keir Fraser wrote:
> The cost must also be paid by domains that don't require shadow page
> tables (32-bit on 32-bit, in particular).

The next sentence in my mail said that a normal hypercall would effectively 
have the same performance impact...

> The 64-bit dom0_op patch you posted misses 64-bit-ifying the page-frame
> arrays of GETMEMLIST and GETPAGEFRAMEINFO2. I had a go at 64-bit-ifying
> the dom0_op interface myself, and gave up at those two because they are
> particularly invasive to change.

Couldn't a field be added indicating the size of the resulting type? I have to 
run right now, but I'll think about it more.

Hollis Blanchard
IBM Linux Technology Center

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