There are some heuristics in the PPC power management code that try to find out if the particular hardware we're running on supports proper power management or just hangs the machine when going into nap mode. Since we know that KVM is safe with nap, let's force enable it in the PV code once we're certain that we are on a KVM VM. Signed-off-by: Alexander Graf <agraf@xxxxxxx> --- arch/powerpc/kernel/kvm.c | 3 +++ 1 files changed, 3 insertions(+), 0 deletions(-) diff --git a/arch/powerpc/kernel/kvm.c b/arch/powerpc/kernel/kvm.c index 517da39..95aed6b 100644 --- a/arch/powerpc/kernel/kvm.c +++ b/arch/powerpc/kernel/kvm.c @@ -583,6 +583,9 @@ static int __init kvm_guest_init(void) if (kvm_para_has_feature(KVM_FEATURE_MAGIC_PAGE)) kvm_use_magic_page(); + /* Enable napping */ + powersave_nap = 1; + free_tmp: kvm_free_tmp(); -- 1.6.0.2 -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
