On Sun, 2013-06-23 at 21:23 -0400, Sasha Levin wrote:
> Commit "kvm tools: virtio: remove hardcoded assumptions
> about guest page size" has introduced a bug that prevented
> guests with more than 4gb of ram from booting.
> 
> The issue is that 'pfn' is a 32bit integer, so when multiplying
> it by page size to get the actual page will cause an overflow if
> the pfn referred to a memory area above 4gb.

Couldn't we just make pfn 64 bit?

cheers

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