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xen-devel
Re: [Xen-devel] passing hypercall parameters by pointer
On 19 Aug 2005, at 03:00, Jimi Xenidis wrote:
I believe a negotiated managment area that the application serializes
all arguements into to be a far better solution, the area can be of
arbitrary size and it the added complexity to the application is
trivial.
Am I missing something?
This is the correct answer imo. get_pfn_list() needs to die anyway:
there are better ways to get the list of mfns belonging to a guest (you
can get the list back from increase_reservation, or you can map the
guest's pfn->mfn map).
The current mlock() scheme in libxc is screwed anyway -- we
mlock/munlock regions that may overlap at page granularity. Fixing this
would lead naturally to a preallocation scheme.
-- Keir
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