[Xen-devel] Re: [PATCH 3/7] libxenlight resend: 8mb physmap slack for pv domains

[Stefano Stabellini <stefano.stabellini@xxxxxxxxxxxxx>]

On Wed, 2 Dec 2009, Andres Lagar-Cavilla wrote:
> Contemplate 8MB of slack for PV domains, since they
> do ballooning (or flipping network rx) and need
> some extra room in their pfn space.
> 
> Note that this does not allocate any extra memory
> to the domain, it simply extends the physmap with
> some extra room for "bounce bufffering back" pfn's
> that are yielded to dom0.
> 

Vincent is probably traveling and for this reason he didn't reply to
your last email about this patch.

I don't think he would be happy until you move the 8mb slack into a
configurable parameter in libxl_domain_build_info, defaulted to 8mb in
init_build_info.


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