From: Paul Mackerras <paulus@samba.org>
Date: Thu, 15 Dec 2011 02:02:47 +0000 (+0000)
Subject: KVM: PPC: Book3S HV: Use the hardware referenced bit for kvm_age_hva
X-Git-Tag: v3.4-rc1~59^2~65
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=55514893739d28f095f19b012133eea4cb4a9390;p=pandora-kernel.git

KVM: PPC: Book3S HV: Use the hardware referenced bit for kvm_age_hva

This uses the host view of the hardware R (referenced) bit to speed
up kvm_age_hva() and kvm_test_age_hva().  Instead of removing all
the relevant HPTEs in kvm_age_hva(), we now just reset their R bits
if set.  Also, kvm_test_age_hva() now scans the relevant HPTEs to
see if any of them have R set.

Signed-off-by: Paul Mackerras <paulus@samba.org>
Signed-off-by: Alexander Graf <agraf@suse.de>
Signed-off-by: Avi Kivity <avi@redhat.com>
---

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