From: Gleb Natapov <gleb@redhat.com>
Date: Mon, 18 Oct 2010 13:22:23 +0000 (+0200)
Subject: KVM: Add memory slot versioning and use it to provide fast guest write interface
X-Git-Tag: v2.6.38-rc1~244^2~138
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=49c7754ce57063b819b01eb8a4290841ad0886c4;p=pandora-kernel.git

KVM: Add memory slot versioning and use it to provide fast guest write interface

Keep track of memslots changes by keeping generation number in memslots
structure. Provide kvm_write_guest_cached() function that skips
gfn_to_hva() translation if memslots was not changed since previous
invocation.

Acked-by: Rik van Riel <riel@redhat.com>
Signed-off-by: Gleb Natapov <gleb@redhat.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
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