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KVM: PPC: Enable napping only for Book3s_64

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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>
This commit is contained in:
Alexander Graf 2010-08-17 22:08:39 +02:00 committed by Avi Kivity
parent ebc65874e9
commit 591bd8e7b4
1 changed files with 2 additions and 0 deletions
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arch/powerpc/kernel/kvm.c
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@ -582,8 +582,10 @@ static int __init kvm_guest_init(void)
if (kvm_para_has_feature(KVM_FEATURE_MAGIC_PAGE)) if (kvm_para_has_feature(KVM_FEATURE_MAGIC_PAGE))
kvm_use_magic_page(); kvm_use_magic_page();
#ifdef CONFIG_PPC_BOOK3S_64
/* Enable napping */ /* Enable napping */
powersave_nap = 1; powersave_nap = 1;
#endif
free_tmp: free_tmp:
kvm_free_tmp(); kvm_free_tmp();