KVM: s390: Add architectural trace events
Add trace events for several s390 architecture specifics:
- SIE entry/exit
- common intercepts
- common instructions (sigp/diagnose)
Reviewed-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
diff --git a/arch/s390/kvm/kvm-s390.c b/arch/s390/kvm/kvm-s390.c
index d470ccb..4613602 100644
--- a/arch/s390/kvm/kvm-s390.c
+++ b/arch/s390/kvm/kvm-s390.c
@@ -32,6 +32,9 @@
#include "kvm-s390.h"
#include "gaccess.h"
+#define CREATE_TRACE_POINTS
+#include "trace.h"
+
#define VCPU_STAT(x) offsetof(struct kvm_vcpu, stat.x), KVM_STAT_VCPU
struct kvm_stats_debugfs_item debugfs_entries[] = {
@@ -607,18 +610,22 @@
local_irq_enable();
VCPU_EVENT(vcpu, 6, "entering sie flags %x",
atomic_read(&vcpu->arch.sie_block->cpuflags));
+ trace_kvm_s390_sie_enter(vcpu,
+ atomic_read(&vcpu->arch.sie_block->cpuflags));
rc = sie64a(vcpu->arch.sie_block, vcpu->run->s.regs.gprs);
if (rc) {
if (kvm_is_ucontrol(vcpu->kvm)) {
rc = SIE_INTERCEPT_UCONTROL;
} else {
VCPU_EVENT(vcpu, 3, "%s", "fault in sie instruction");
+ trace_kvm_s390_sie_fault(vcpu);
kvm_s390_inject_program_int(vcpu, PGM_ADDRESSING);
rc = 0;
}
}
VCPU_EVENT(vcpu, 6, "exit sie icptcode %d",
vcpu->arch.sie_block->icptcode);
+ trace_kvm_s390_sie_exit(vcpu, vcpu->arch.sie_block->icptcode);
local_irq_disable();
kvm_guest_exit();
local_irq_enable();