On 03/13/2014 09:59 AM, Paolo Bonzini wrote:
Il 12/03/2014 19:54, Waiman Long ha scritto:@@ -807,8 +889,13 @@ void __init kvm_spinlock_init(void) if (!kvm_para_has_feature(KVM_FEATURE_PV_UNHALT)) return; +#ifdef CONFIG_QUEUE_SPINLOCK + pv_lock_ops.kick_cpu = kvm_kick_cpu_type; + pv_lock_ops.hibernate = kvm_hibernate; +#else pv_lock_ops.lock_spinning = PV_CALLEE_SAVE(kvm_lock_spinning); pv_lock_ops.unlock_kick = kvm_unlock_kick; +#endifThis should also disable the unfair path. Paolo
The unfair lock uses a different jump label and does not require any special PV ops. There is a separate init function for that.
-Longman _______________________________________________ Virtualization mailing list Virtualization@xxxxxxxxxxxxxxxxxxxxxxxxxx https://lists.linuxfoundation.org/mailman/listinfo/virtualization
