From 6852d7b69b4949234c3a8ae1f279f6a4c6563662 Mon Sep 17 00:00:00 2001 From: David Hildenbrand Date: Fri, 14 Mar 2014 10:59:29 +0100 Subject: KVM: s390: introduce kvm_s390_vcpu_{start,stop} This patch introduces two new functions to set/clear the CPUSTAT_STOPPED bit and makes use of it at all applicable places. These functions prepare the additional execution of code when starting/stopping a vcpu. The CPUSTAT_STOPPED bit should not be touched outside of these functions. Signed-off-by: David Hildenbrand Reviewed-by: Cornelia Huck Signed-off-by: Christian Borntraeger --- arch/s390/kvm/trace-s390.h | 21 +++++++++++++++++++++ 1 file changed, 21 insertions(+) (limited to 'arch/s390/kvm/trace-s390.h') diff --git a/arch/s390/kvm/trace-s390.h b/arch/s390/kvm/trace-s390.h index 13f30f5..34d4f8a 100644 --- a/arch/s390/kvm/trace-s390.h +++ b/arch/s390/kvm/trace-s390.h @@ -68,6 +68,27 @@ TRACE_EVENT(kvm_s390_destroy_vcpu, ); /* + * Trace point for start and stop of vpcus. + */ +TRACE_EVENT(kvm_s390_vcpu_start_stop, + TP_PROTO(unsigned int id, int state), + TP_ARGS(id, state), + + TP_STRUCT__entry( + __field(unsigned int, id) + __field(int, state) + ), + + TP_fast_assign( + __entry->id = id; + __entry->state = state; + ), + + TP_printk("%s cpu %d", __entry->state ? "starting" : "stopping", + __entry->id) + ); + +/* * Trace points for injection of interrupts, either per machine or * per vcpu. */ -- cgit v1.1