perf report: Add hypervisor dso

Add a dso for hypervisor samples. We don't get any symbol
information on the ppc64 hypervisor but this at least gives
us a high level summary of the time spent in there.

Signed-off-by: Anton Blanchard <anton@samba.org>
Cc: a.p.zijlstra@chello.nl
Cc: paulus@samba.org
LKML-Reference: <20090630230141.182536873@samba.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

diff --git a/tools/perf/builtin-report.c b/tools/perf/builtin-report.c
index 88e88c5..3f5d8ea 100644 (file)
--- a/tools/perf/builtin-report.c
+++ b/tools/perf/builtin-report.c
@@ -121,6 +121,7 @@ typedef union event_union {
 static LIST_HEAD(dsos);
 static struct dso *kernel_dso;
 static struct dso *vdso;
+static struct dso *hypervisor_dso;
 
 static void dsos__add(struct dso *dso)
 {
@@ -202,6 +203,11 @@ static int load_kernel(void)
 
        dsos__add(vdso);
 
+       hypervisor_dso = dso__new("[hypervisor]", 0);
+       if (!hypervisor_dso)
+               return -1;
+       dsos__add(hypervisor_dso);
+
        return err;
 }
 
@@ -640,7 +646,8 @@ sort__sym_print(FILE *fp, struct hist_entry *self)
 
        if (self->sym) {
                ret += fprintf(fp, "[%c] %s",
-                       self->dso == kernel_dso ? 'k' : '.', self->sym->name);
+                       self->dso == kernel_dso ? 'k' :
+                       self->dso == hypervisor_dso ? 'h' : '.', self->sym->name);
        } else {
                ret += fprintf(fp, "%#016llx", (u64)self->ip);
        }
@@ -963,6 +970,9 @@ hist_entry__add(struct thread *thread, struct map *map, struct dso *dso,
                        }
 
                        switch (context) {
+                       case PERF_CONTEXT_HV:
+                               dso = hypervisor_dso;
+                               break;
                        case PERF_CONTEXT_KERNEL:
                                dso = kernel_dso;
                                break;
@@ -1275,6 +1285,9 @@ process_sample_event(event_t *event, unsigned long offset, unsigned long head)
        } else {
                show = SHOW_HV;
                level = 'H';
+
+               dso = hypervisor_dso;
+
                dprintf(" ...... dso: [hypervisor]\n");
        }