Re: [PATCH v3 2/2] xen/setup: Remap Xen Identity Mapped RAM
From: David Vrabel
Date: Wed Aug 27 2014 - 06:28:17 EST
On 11/08/14 18:34, Matt Rushton wrote:
> Instead of ballooning up and down dom0 memory this remaps the existing mfns
> that were replaced by the identity map. The reason for this is that the
> existing implementation ballooned memory up and and down which caused dom0
> to have discontiguous pages. In some cases this resulted in the use of bounce
> buffers which reduced network I/O performance significantly. This change will
> honor the existing order of the pages with the exception of some boundary
Applied to devel/for-linus-3.18.
Patch #1 is already present in 3.17-rc1.
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