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authorAlexander Graf <agraf@suse.de>2010-08-18 00:08:39 +0400
committerAvi Kivity <avi@redhat.com>2010-10-24 12:52:19 +0400
commit591bd8e7b4c8b9246d7a1c81ffbd28e35dc5de4e (patch)
tree5d512d445bb6d74cc0d9e2bc84fc28d265d03c9c /arch/powerpc
parentebc65874e9e8f3b8bbbc69aa49acd7489cd41c52 (diff)
downloadlinux-591bd8e7b4c8b9246d7a1c81ffbd28e35dc5de4e.tar.xz
KVM: PPC: Enable napping only for Book3s_64
Before I incorrectly enabled napping also for BookE, which would result in needless dcache flushes. Since we only need to force enable napping on Book3s_64 because it doesn't go into MSR_POW otherwise, we can just #ifdef that code to this particular platform. Reported-by: Scott Wood <scottwood@freescale.com> Signed-off-by: Alexander Graf <agraf@suse.de>
Diffstat (limited to 'arch/powerpc')
-rw-r--r--arch/powerpc/kernel/kvm.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/powerpc/kernel/kvm.c b/arch/powerpc/kernel/kvm.c
index 669d989be1d6..428d0e538aec 100644
--- a/arch/powerpc/kernel/kvm.c
+++ b/arch/powerpc/kernel/kvm.c
@@ -582,8 +582,10 @@ static int __init kvm_guest_init(void)
if (kvm_para_has_feature(KVM_FEATURE_MAGIC_PAGE))
kvm_use_magic_page();
+#ifdef CONFIG_PPC_BOOK3S_64
/* Enable napping */
powersave_nap = 1;
+#endif
free_tmp:
kvm_free_tmp();