From: Andrew Honig <ahonig@google.com>
Date: Fri, 29 Mar 2013 16:35:21 +0000 (-0700)
Subject: KVM: Allow cross page reads and writes from cached translations.
X-Git-Tag: v3.9-rc6~1^2
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=8f964525a121f2ff2df948dac908dcc65be21b5b;p=pandora-kernel.git

KVM: Allow cross page reads and writes from cached translations.

This patch adds support for kvm_gfn_to_hva_cache_init functions for
reads and writes that will cross a page.  If the range falls within
the same memslot, then this will be a fast operation.  If the range
is split between two memslots, then the slower kvm_read_guest and
kvm_write_guest are used.

Tested: Test against kvm_clock unit tests.

Signed-off-by: Andrew Honig <ahonig@google.com>
Signed-off-by: Gleb Natapov <gleb@redhat.com>
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