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[Xen-devel] [PATCH 3/7] libxenlight resend: 8mb physmap slack for pv dom
| To: | Stefano Stabellini <Stefano.Stabellini@xxxxxxxxxxxxx>, Vincent Hanquez <vincent.hanquez@xxxxxxxxxxxxx>, xen-devel@xxxxxxxxxxxxxxxxxxx |
|---|---|
| Subject: | [Xen-devel] [PATCH 3/7] libxenlight resend: 8mb physmap slack for pv domains |
| From: | Andres Lagar-Cavilla <andres@xxxxxxxxxxxxxxxx> |
| Date: | Wed, 02 Dec 2009 13:00:31 -0500 |
| Cc: | |
| Delivery-date: | Wed, 02 Dec 2009 09:47:17 -0800 |
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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. Signed-off-by: Andres Lagar-Cavilla <andres@xxxxxxxxxxxxxxxx>
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