[Qemu-devel] [PATCH 05/10] s390x/kvm: trace all SIGP orders

[Jens Freimann <jfrei@linux.vnet.ibm.com>]

From: David Hildenbrand <dahi@linux.vnet.ibm.com>

This patch adds tracing code for all SIGP orders (including the destination
vcpu and the resulting condition code).

Reviewed-by: Thomas Huth <thuth@linux.vnet.ibm.com>
Reviewed-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Jens Freimann <jfrei@linux.vnet.ibm.com>
Signed-off-by: David Hildenbrand <dahi@linux.vnet.ibm.com>
---
 target-s390x/kvm.c | 4 +++-
 trace-events       | 1 +
 2 files changed, 4 insertions(+), 1 deletion(-)

diff --git a/target-s390x/kvm.c b/target-s390x/kvm.c
index fb0ce6d..ec14714 100644
--- a/target-s390x/kvm.c
+++ b/target-s390x/kvm.c
@@ -1118,7 +1118,6 @@ static void sigp_start(void *arg)
 
     s390_cpu_set_state(CPU_STATE_OPERATING, si->cpu);
     si->cc = SIGP_CC_ORDER_CODE_ACCEPTED;
-    DPRINTF("DONE: KVM cpu start: %p\n", &si->cpu->env);
 }
 
 static void sigp_restart(void *arg)
@@ -1234,6 +1233,9 @@ static int handle_sigp(S390CPU *cpu, struct kvm_run *run, uint8_t ipa1)
         ret = handle_sigp_single_dst(dst_cpu, order, param, status_reg);
     }
 
+    trace_kvm_sigp_finished(order, CPU(cpu)->cpu_index,
+                            dst_cpu ? CPU(dst_cpu)->cpu_index : -1, ret);
+
     if (ret >= 0) {
         setcc(cpu, ret);
         return 0;
diff --git a/trace-events b/trace-events
index f87b077..1e0052d 100644
--- a/trace-events
+++ b/trace-events
@@ -1577,6 +1577,7 @@ mhp_pc_dimm_assigned_address(uint64_t addr) "0x%"PRIx64
 kvm_enable_cmma(int rc) "CMMA: enabling with result code %d"
 kvm_clear_cmma(int rc) "CMMA: clearing with result code %d"
 kvm_failed_cpu_state_set(int cpu_index, uint8_t state, const char *msg) "Warning: Unable to set cpu %d state %" PRIu8 " to KVM: %s"
+kvm_sigp_finished(uint8_t order, int cpu_index, int dst_index, int cc) "SIGP: Finished order %u on cpu %d -> cpu %d with cc=%d"
 
 # hw/dma/i8257.c
 i8257_unregistered_dma(int nchan, int dma_pos, int dma_len) "unregistered DMA channel used nchan=%d dma_pos=%d dma_len=%d"
-- 
2.1.4