From: Alexander Graf Date: Tue, 17 Aug 2010 09:41:44 +0000 (+0200) Subject: KVM: PPC: Force enable nap on KVM X-Git-Tag: Ubuntu-5.2.0-15.16~23256^2~90 X-Git-Url: https://git.proxmox.com/?a=commitdiff_plain;h=ad0873763a83e7b31ba87a85ec2027dd6a9d7b55;p=mirror_ubuntu-eoan-kernel.git KVM: PPC: Force enable nap on KVM 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 --- diff --git a/arch/powerpc/kernel/kvm.c b/arch/powerpc/kernel/kvm.c index 48a033865410..669d989be1d6 100644 --- a/arch/powerpc/kernel/kvm.c +++ b/arch/powerpc/kernel/kvm.c @@ -582,6 +582,9 @@ 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();