Merge tag 'tracing-pull-request' of https://gitlab.com/stefanha/qemu into staging

Pull request

This pull request contains Alex Bennée's vcpu trace events removal patches.

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# gpg:                using RSA key 8695A8BFD3F97CDAAC35775A9CA4ABB381AB73C8
# gpg: Good signature from "Stefan Hajnoczi <stefanha@redhat.com>" [full]
# gpg:                 aka "Stefan Hajnoczi <stefanha@gmail.com>" [full]

* tag 'tracing-pull-request' of https://gitlab.com/stefanha/qemu:
  accel/tcg: include cs_base in our hash calculations
  hw/9pfs: use qemu_xxhash4
  tcg: remove the final vestiges of dstate
  trace: remove control-vcpu.h
  trace: remove code that depends on setting vcpu
  qapi: make the vcpu parameters deprecated for 8.1
  docs/deprecated: move QMP events bellow QMP command section
  scripts/qapi: document the tool that generated the file
  trace: remove vcpu_id from the TraceEvent structure
  trace-events: remove the remaining vcpu trace events
  *-user: remove the guest_user_syscall tracepoints

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

3 files changed, 9 insertions, 22 deletions

diff --git a/scripts/qapi/gen.py b/scripts/qapi/gen.py
index 8f8f784f4a..70bc576a10 100644
--- a/scripts/qapi/gen.py
+++ b/scripts/qapi/gen.py
@@ -13,6 +13,7 @@
 
 from contextlib import contextmanager
 import os
+import sys
 import re
 from typing import (
     Dict,
@@ -162,7 +163,7 @@ class QAPIGenC(QAPIGenCCode):
 
     def _top(self) -> str:
         return mcgen('''
-/* AUTOMATICALLY GENERATED, DO NOT MODIFY */
+/* AUTOMATICALLY GENERATED by %(tool)s DO NOT MODIFY */
 
 /*
 %(blurb)s
@@ -174,6 +175,7 @@ class QAPIGenC(QAPIGenCCode):
  */
 
 ''',
+                     tool=os.path.basename(sys.argv[0]),
                      blurb=self._blurb, copyright=self._copyright)
 
     def _bottom(self) -> str:
@@ -195,7 +197,10 @@ class QAPIGenH(QAPIGenC):
 
 class QAPIGenTrace(QAPIGen):
     def _top(self) -> str:
-        return super()._top() + '# AUTOMATICALLY GENERATED, DO NOT MODIFY\n\n'
+        return (super()._top()
+                + '# AUTOMATICALLY GENERATED by '
+                + os.path.basename(sys.argv[0])
+                + ', DO NOT MODIFY\n\n')
 
 
 @contextmanager
diff --git a/scripts/tracetool/format/c.py b/scripts/tracetool/format/c.py
index c390c1844a..69edf0d588 100644
--- a/scripts/tracetool/format/c.py
+++ b/scripts/tracetool/format/c.py
@@ -32,19 +32,13 @@ def generate(events, backend, group):
         out('uint16_t %s;' % e.api(e.QEMU_DSTATE))
 
     for e in events:
-        if "vcpu" in e.properties:
-            vcpu_id = 0
-        else:
-            vcpu_id = "TRACE_VCPU_EVENT_NONE"
         out('TraceEvent %(event)s = {',
             '    .id = 0,',
-            '    .vcpu_id = %(vcpu_id)s,',
             '    .name = \"%(name)s\",',
             '    .sstate = %(sstate)s,',
             '    .dstate = &%(dstate)s ',
             '};',
             event = e.api(e.QEMU_EVENT),
-            vcpu_id = vcpu_id,
             name = e.name,
             sstate = "TRACE_%s_ENABLED" % e.name.upper(),
             dstate = e.api(e.QEMU_DSTATE))
diff --git a/scripts/tracetool/format/h.py b/scripts/tracetool/format/h.py
index e94f0be7da..ea126b07ea 100644
--- a/scripts/tracetool/format/h.py
+++ b/scripts/tracetool/format/h.py
@@ -16,10 +16,7 @@ from tracetool import out
 
 
 def generate(events, backend, group):
-    if group == "root":
-        header = "trace/control-vcpu.h"
-    else:
-        header = "trace/control.h"
+    header = "trace/control.h"
 
     out('/* This file is autogenerated by tracetool, do not edit. */',
         '',
@@ -74,16 +71,7 @@ def generate(events, backend, group):
 
         out('}')
 
-        # tracer wrapper with checks (per-vCPU tracing)
-        if "vcpu" in e.properties:
-            trace_cpu = next(iter(e.args))[1]
-            cond = "trace_event_get_vcpu_state(%(cpu)s,"\
-                   " TRACE_%(id)s)"\
-                   % dict(
-                       cpu=trace_cpu,
-                       id=e.name.upper())
-        else:
-            cond = "true"
+        cond = "true"
 
         out('',
             'static inline void %(api)s(%(args)s)',