diff mbox series

[v5] replay: do not build if TCG is not available

Message ID 20201021123757.2058852-1-pbonzini@redhat.com (mailing list archive)
State New, archived
Headers show
Series [v5] replay: do not build if TCG is not available | expand

Commit Message

Paolo Bonzini Oct. 21, 2020, 12:37 p.m. UTC
From: Claudio Fontana <cfontana@suse.de>

this fixes non-TCG builds broken recently by replay reverse debugging.

Stub the needed functions in stub/, splitting roughly between functions
needed only by system emulation, by system emulation and tools,
and by everyone.  This includes duplicating some code in replay/, and
puts the logic for non-replay related events in the replay/ module (+
the stubs), so this should be revisited in the future.

Surprisingly, only _one_ qtest was affected by this, ide-test.c, which
resulted in a buzz as the bh events were never delivered, and the bh
never executed.

Many other subsystems _should_ have been affected.

This fixes the immediate issue, however a better way to group replay
functionality to TCG-only code could be developed in the long term.

Signed-off-by: Claudio Fontana <cfontana@suse.de>
Message-Id: <20201013192123.22632-4-cfontana@suse.de>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
 block/meson.build          |  3 +-
 net/meson.build            |  3 +-
 replay/meson.build         |  4 +-
 replay/stubs-system.c      | 96 ++++++++++++++++++++++++++++++++++++++
 stubs/meson.build          |  4 +-
 stubs/replay-tools.c       | 83 ++++++++++++++++++++++++++++++++
 stubs/replay-user.c        |  9 ----
 stubs/replay.c             | 78 -------------------------------
 tests/ptimer-test-stubs.c  |  5 --
 tests/qtest/qmp-cmd-test.c |  3 ++
 10 files changed, 191 insertions(+), 97 deletions(-)
 create mode 100644 replay/stubs-system.c
 create mode 100644 stubs/replay-tools.c
 delete mode 100644 stubs/replay-user.c

Comments

Claudio Fontana Oct. 21, 2020, 2:46 p.m. UTC | #1
Hi Paolo,


On 10/21/20 2:37 PM, Paolo Bonzini wrote:
> From: Claudio Fontana <cfontana@suse.de>
> 
> this fixes non-TCG builds broken recently by replay reverse debugging.
> 
> Stub the needed functions in stub/, splitting roughly between functions
> needed only by system emulation, by system emulation and tools,
> and by everyone.  This includes duplicating some code in replay/, and
> puts the logic for non-replay related events in the replay/ module (+
> the stubs), so this should be revisited in the future.
> 
> Surprisingly, only _one_ qtest was affected by this, ide-test.c, which
> resulted in a buzz as the bh events were never delivered, and the bh
> never executed.
> 
> Many other subsystems _should_ have been affected.
> 
> This fixes the immediate issue, however a better way to group replay
> functionality to TCG-only code could be developed in the long term.
> 
> Signed-off-by: Claudio Fontana <cfontana@suse.de>
> Message-Id: <20201013192123.22632-4-cfontana@suse.de>
> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

one issue is with the snapshot, 

in your respin you have not included my change which surrounds

if (replay_can_snapshot())

around a

if (tcg_enabled()) {
}

therefore leading to failure of all attempts to snapshot under --disable-tcg.

Alternatively, you can change the stub to return "true" (replay_can_snapshot()),
although its meaning can be quite surprising for the reader under --disable-tcg.

Ciao,

Claudio

> ---
>  block/meson.build          |  3 +-
>  net/meson.build            |  3 +-
>  replay/meson.build         |  4 +-
>  replay/stubs-system.c      | 96 ++++++++++++++++++++++++++++++++++++++
>  stubs/meson.build          |  4 +-
>  stubs/replay-tools.c       | 83 ++++++++++++++++++++++++++++++++
>  stubs/replay-user.c        |  9 ----
>  stubs/replay.c             | 78 -------------------------------
>  tests/ptimer-test-stubs.c  |  5 --
>  tests/qtest/qmp-cmd-test.c |  3 ++
>  10 files changed, 191 insertions(+), 97 deletions(-)
>  create mode 100644 replay/stubs-system.c
>  create mode 100644 stubs/replay-tools.c
>  delete mode 100644 stubs/replay-user.c
> 
> diff --git a/block/meson.build b/block/meson.build
> index 78e8b25232..5dcc1e5cce 100644
> --- a/block/meson.build
> +++ b/block/meson.build
> @@ -7,7 +7,6 @@ block_ss.add(files(
>    'backup-top.c',
>    'blkdebug.c',
>    'blklogwrites.c',
> -  'blkreplay.c',
>    'blkverify.c',
>    'block-backend.c',
>    'block-copy.c',
> @@ -42,6 +41,8 @@ block_ss.add(files(
>    'write-threshold.c',
>  ), zstd, zlib)
>  
> +softmmu_ss.add(when: 'CONFIG_TCG', if_true: files('blkreplay.c'))
> +
>  block_ss.add(when: 'CONFIG_QCOW1', if_true: files('qcow.c'))
>  block_ss.add(when: 'CONFIG_VDI', if_true: files('vdi.c'))
>  block_ss.add(when: 'CONFIG_CLOOP', if_true: files('cloop.c'))
> diff --git a/net/meson.build b/net/meson.build
> index 1c7e3a3cb9..1076b0a7ab 100644
> --- a/net/meson.build
> +++ b/net/meson.build
> @@ -7,7 +7,6 @@ softmmu_ss.add(files(
>    'eth.c',
>    'filter-buffer.c',
>    'filter-mirror.c',
> -  'filter-replay.c',
>    'filter-rewriter.c',
>    'filter.c',
>    'hub.c',
> @@ -17,6 +16,8 @@ softmmu_ss.add(files(
>    'util.c',
>  ))
>  
> +softmmu_ss.add(when: 'CONFIG_TCG', if_true: files('filter-replay.c'))
> +
>  softmmu_ss.add(when: 'CONFIG_L2TPV3', if_true: files('l2tpv3.c'))
>  softmmu_ss.add(when: slirp, if_true: files('slirp.c'))
>  softmmu_ss.add(when: ['CONFIG_VDE', vde], if_true: files('vde.c'))
> diff --git a/replay/meson.build b/replay/meson.build
> index f91163fb1e..21aefad220 100644
> --- a/replay/meson.build
> +++ b/replay/meson.build
> @@ -1,4 +1,4 @@
> -softmmu_ss.add(files(
> +softmmu_ss.add(when: 'CONFIG_TCG', if_true: files(
>    'replay.c',
>    'replay-internal.c',
>    'replay-events.c',
> @@ -10,4 +10,4 @@ softmmu_ss.add(files(
>    'replay-audio.c',
>    'replay-random.c',
>    'replay-debugging.c',
> -))
> +), if_false: files('stubs-system.c'))
> diff --git a/replay/stubs-system.c b/replay/stubs-system.c
> new file mode 100644
> index 0000000000..16793dde76
> --- /dev/null
> +++ b/replay/stubs-system.c
> @@ -0,0 +1,96 @@
> +#include "qemu/osdep.h"
> +#include "sysemu/replay.h"
> +#include "ui/input.h"
> +
> +void replay_input_event(QemuConsole *src, InputEvent *evt)
> +{
> +    qemu_input_event_send_impl(src, evt);
> +}
> +
> +void replay_input_sync_event(void)
> +{
> +    qemu_input_event_sync_impl();
> +}
> +
> +void replay_add_blocker(Error *reason)
> +{
> +}
> +void replay_audio_in(size_t *recorded, void *samples, size_t *wpos, size_t size)
> +{
> +}
> +void replay_audio_out(size_t *played)
> +{
> +}
> +void replay_breakpoint(void)
> +{
> +}
> +bool replay_can_snapshot(void)
> +{
> +    return false;
> +}
> +void replay_configure(struct QemuOpts *opts)
> +{
> +}
> +void replay_flush_events(void)
> +{
> +}
> +void replay_gdb_attached(void)
> +{
> +}
> +bool replay_running_debug(void)
> +{
> +    return false;
> +}
> +void replay_shutdown_request(ShutdownCause cause)
> +{
> +}
> +void replay_start(void)
> +{
> +}
> +void replay_vmstate_init(void)
> +{
> +}
> +
> +#include "monitor/monitor.h"
> +#include "monitor/hmp.h"
> +#include "qapi/qapi-commands-replay.h"
> +#include "qapi/error.h"
> +#include "qemu/error-report.h"
> +
> +void hmp_info_replay(Monitor *mon, const QDict *qdict)
> +{
> +    error_report("replay support not available");
> +}
> +void hmp_replay_break(Monitor *mon, const QDict *qdict)
> +{
> +    error_report("replay support not available");
> +}
> +void hmp_replay_delete_break(Monitor *mon, const QDict *qdict)
> +{
> +    error_report("replay support not available");
> +}
> +void hmp_replay_seek(Monitor *mon, const QDict *qdict)
> +{
> +    error_report("replay support not available");
> +}
> +ReplayInfo *qmp_query_replay(Error **errp)
> +{
> +    error_set(errp, ERROR_CLASS_COMMAND_NOT_FOUND,
> +              "replay support not available");
> +    return NULL;
> +}
> +void qmp_replay_break(int64_t icount, Error **errp)
> +{
> +    error_set(errp, ERROR_CLASS_COMMAND_NOT_FOUND,
> +              "replay support not available");
> +}
> +void qmp_replay_delete_break(Error **errp)
> +{
> +    error_set(errp, ERROR_CLASS_COMMAND_NOT_FOUND,
> +              "replay support not available");
> +}
> +void qmp_replay_seek(int64_t icount, Error **errp)
> +{
> +    error_set(errp, ERROR_CLASS_COMMAND_NOT_FOUND,
> +              "replay support not available");
> +}
> diff --git a/stubs/meson.build b/stubs/meson.build
> index 67f2a8c069..057d7682e5 100644
> --- a/stubs/meson.build
> +++ b/stubs/meson.build
> @@ -32,7 +32,6 @@ stub_ss.add(files('qtest.c'))
>  stub_ss.add(files('ram-block.c'))
>  stub_ss.add(files('ramfb.c'))
>  stub_ss.add(files('replay.c'))
> -stub_ss.add(files('replay-user.c'))
>  stub_ss.add(files('runstate-check.c'))
>  stub_ss.add(files('set-fd-handler.c'))
>  stub_ss.add(files('sysbus.c'))
> @@ -46,6 +45,9 @@ stub_ss.add(files('vmstate.c'))
>  stub_ss.add(files('vm-stop.c'))
>  stub_ss.add(files('win32-kbd-hook.c'))
>  stub_ss.add(files('cpu-synchronize-state.c'))
> +if have_block
> +  stub_ss.add(files('replay-tools.c'))
> +endif
>  if have_system
>    stub_ss.add(files('semihost.c'))
>    stub_ss.add(files('xen-hw-stub.c'))
> diff --git a/stubs/replay-tools.c b/stubs/replay-tools.c
> new file mode 100644
> index 0000000000..c06b360e22
> --- /dev/null
> +++ b/stubs/replay-tools.c
> @@ -0,0 +1,83 @@
> +#include "qemu/osdep.h"
> +#include "sysemu/replay.h"
> +#include "block/aio.h"
> +
> +bool replay_events_enabled(void)
> +{
> +    return false;
> +}
> +
> +int64_t replay_save_clock(unsigned int kind, int64_t clock, int64_t raw_icount)
> +{
> +    abort();
> +    return 0;
> +}
> +
> +int64_t replay_read_clock(unsigned int kind)
> +{
> +    abort();
> +    return 0;
> +}
> +
> +uint64_t replay_get_current_icount(void)
> +{
> +    return 0;
> +}
> +
> +void replay_bh_schedule_event(QEMUBH *bh)
> +{
> +    qemu_bh_schedule(bh);
> +}
> +
> +void replay_bh_schedule_oneshot_event(AioContext *ctx,
> +     QEMUBHFunc *cb, void *opaque)
> +{
> +    aio_bh_schedule_oneshot(ctx, cb, opaque);
> +}
> +
> +bool replay_checkpoint(ReplayCheckpoint checkpoint)
> +{
> +    return true;
> +}
> +
> +void replay_mutex_lock(void)
> +{
> +}
> +
> +void replay_mutex_unlock(void)
> +{
> +}
> +
> +void replay_register_char_driver(Chardev *chr)
> +{
> +}
> +
> +void replay_chr_be_write(Chardev *s, uint8_t *buf, int len)
> +{
> +    abort();
> +}
> +
> +void replay_char_write_event_save(int res, int offset)
> +{
> +    abort();
> +}
> +
> +void replay_char_write_event_load(int *res, int *offset)
> +{
> +    abort();
> +}
> +
> +int replay_char_read_all_load(uint8_t *buf)
> +{
> +    abort();
> +}
> +
> +void replay_char_read_all_save_error(int res)
> +{
> +    abort();
> +}
> +
> +void replay_char_read_all_save_buf(uint8_t *buf, int offset)
> +{
> +    abort();
> +}
> diff --git a/stubs/replay-user.c b/stubs/replay-user.c
> deleted file mode 100644
> index 2ad9e27203..0000000000
> --- a/stubs/replay-user.c
> +++ /dev/null
> @@ -1,9 +0,0 @@
> -#include "qemu/osdep.h"
> -#include "sysemu/replay.h"
> -#include "sysemu/sysemu.h"
> -
> -void replay_bh_schedule_oneshot_event(AioContext *ctx,
> -    QEMUBHFunc *cb, void *opaque)
> -{
> -    aio_bh_schedule_oneshot(ctx, cb, opaque);
> -}
> diff --git a/stubs/replay.c b/stubs/replay.c
> index 45ebe77fb9..9d5b4be339 100644
> --- a/stubs/replay.c
> +++ b/stubs/replay.c
> @@ -3,83 +3,10 @@
>  
>  ReplayMode replay_mode;
>  
> -int64_t replay_save_clock(unsigned int kind, int64_t clock, int64_t raw_icount)
> -{
> -    abort();
> -    return 0;
> -}
> -
> -int64_t replay_read_clock(unsigned int kind)
> -{
> -    abort();
> -    return 0;
> -}
> -
> -bool replay_checkpoint(ReplayCheckpoint checkpoint)
> -{
> -    return true;
> -}
> -
> -bool replay_events_enabled(void)
> -{
> -    return false;
> -}
> -
>  void replay_finish(void)
>  {
>  }
>  
> -void replay_register_char_driver(Chardev *chr)
> -{
> -}
> -
> -void replay_chr_be_write(Chardev *s, uint8_t *buf, int len)
> -{
> -    abort();
> -}
> -
> -void replay_char_write_event_save(int res, int offset)
> -{
> -    abort();
> -}
> -
> -void replay_char_write_event_load(int *res, int *offset)
> -{
> -    abort();
> -}
> -
> -int replay_char_read_all_load(uint8_t *buf)
> -{
> -    abort();
> -}
> -
> -void replay_char_read_all_save_error(int res)
> -{
> -    abort();
> -}
> -
> -void replay_char_read_all_save_buf(uint8_t *buf, int offset)
> -{
> -    abort();
> -}
> -
> -void replay_block_event(QEMUBH *bh, uint64_t id)
> -{
> -}
> -
> -uint64_t blkreplay_next_id(void)
> -{
> -    return 0;
> -}
> -
> -void replay_mutex_lock(void)
> -{
> -}
> -
> -void replay_mutex_unlock(void)
> -{
> -}
> -
>  void replay_save_random(int ret, void *buf, size_t len)
>  {
>  }
> @@ -89,11 +16,6 @@ int replay_read_random(void *buf, size_t len)
>      return 0;
>  }
>  
> -uint64_t replay_get_current_icount(void)
> -{
> -    return 0;
> -}
> -
>  bool replay_reverse_step(void)
>  {
>      return false;
> diff --git a/tests/ptimer-test-stubs.c b/tests/ptimer-test-stubs.c
> index e935a1395e..7f801a4d09 100644
> --- a/tests/ptimer-test-stubs.c
> +++ b/tests/ptimer-test-stubs.c
> @@ -122,8 +122,3 @@ void qemu_bh_delete(QEMUBH *bh)
>  {
>      g_free(bh);
>  }
> -
> -void replay_bh_schedule_event(QEMUBH *bh)
> -{
> -    bh->cb(bh->opaque);
> -}
> diff --git a/tests/qtest/qmp-cmd-test.c b/tests/qtest/qmp-cmd-test.c
> index 8a4c570e83..1c7186e53c 100644
> --- a/tests/qtest/qmp-cmd-test.c
> +++ b/tests/qtest/qmp-cmd-test.c
> @@ -31,6 +31,9 @@ static int query_error_class(const char *cmd)
>  #ifndef CONFIG_SPICE
>          { "query-spice", ERROR_CLASS_COMMAND_NOT_FOUND },
>  #endif
> +#ifndef CONFIG_TCG
> +        { "query-replay", ERROR_CLASS_COMMAND_NOT_FOUND },
> +#endif
>  #ifndef CONFIG_VNC
>          { "query-vnc", ERROR_CLASS_GENERIC_ERROR },
>          { "query-vnc-servers", ERROR_CLASS_GENERIC_ERROR },
>
Paolo Bonzini Oct. 21, 2020, 3:26 p.m. UTC | #2
On 21/10/20 16:46, Claudio Fontana wrote:
> in your respin you have not included my change which surrounds
> 
> if (replay_can_snapshot())
> 
> around a
> 
> if (tcg_enabled()) {
> }
> 
> therefore leading to failure of all attempts to snapshot under --disable-tcg.
> 
> Alternatively, you can change the stub to return "true" (replay_can_snapshot()),
> although its meaning can be quite surprising for the reader under --disable-tcg.

Yeah, and it actually makes sense since

    return replay_mode == REPLAY_MODE_NONE
        || !replay_has_events();

would always be true.

Paolo
diff mbox series

Patch

diff --git a/block/meson.build b/block/meson.build
index 78e8b25232..5dcc1e5cce 100644
--- a/block/meson.build
+++ b/block/meson.build
@@ -7,7 +7,6 @@  block_ss.add(files(
   'backup-top.c',
   'blkdebug.c',
   'blklogwrites.c',
-  'blkreplay.c',
   'blkverify.c',
   'block-backend.c',
   'block-copy.c',
@@ -42,6 +41,8 @@  block_ss.add(files(
   'write-threshold.c',
 ), zstd, zlib)
 
+softmmu_ss.add(when: 'CONFIG_TCG', if_true: files('blkreplay.c'))
+
 block_ss.add(when: 'CONFIG_QCOW1', if_true: files('qcow.c'))
 block_ss.add(when: 'CONFIG_VDI', if_true: files('vdi.c'))
 block_ss.add(when: 'CONFIG_CLOOP', if_true: files('cloop.c'))
diff --git a/net/meson.build b/net/meson.build
index 1c7e3a3cb9..1076b0a7ab 100644
--- a/net/meson.build
+++ b/net/meson.build
@@ -7,7 +7,6 @@  softmmu_ss.add(files(
   'eth.c',
   'filter-buffer.c',
   'filter-mirror.c',
-  'filter-replay.c',
   'filter-rewriter.c',
   'filter.c',
   'hub.c',
@@ -17,6 +16,8 @@  softmmu_ss.add(files(
   'util.c',
 ))
 
+softmmu_ss.add(when: 'CONFIG_TCG', if_true: files('filter-replay.c'))
+
 softmmu_ss.add(when: 'CONFIG_L2TPV3', if_true: files('l2tpv3.c'))
 softmmu_ss.add(when: slirp, if_true: files('slirp.c'))
 softmmu_ss.add(when: ['CONFIG_VDE', vde], if_true: files('vde.c'))
diff --git a/replay/meson.build b/replay/meson.build
index f91163fb1e..21aefad220 100644
--- a/replay/meson.build
+++ b/replay/meson.build
@@ -1,4 +1,4 @@ 
-softmmu_ss.add(files(
+softmmu_ss.add(when: 'CONFIG_TCG', if_true: files(
   'replay.c',
   'replay-internal.c',
   'replay-events.c',
@@ -10,4 +10,4 @@  softmmu_ss.add(files(
   'replay-audio.c',
   'replay-random.c',
   'replay-debugging.c',
-))
+), if_false: files('stubs-system.c'))
diff --git a/replay/stubs-system.c b/replay/stubs-system.c
new file mode 100644
index 0000000000..16793dde76
--- /dev/null
+++ b/replay/stubs-system.c
@@ -0,0 +1,96 @@ 
+#include "qemu/osdep.h"
+#include "sysemu/replay.h"
+#include "ui/input.h"
+
+void replay_input_event(QemuConsole *src, InputEvent *evt)
+{
+    qemu_input_event_send_impl(src, evt);
+}
+
+void replay_input_sync_event(void)
+{
+    qemu_input_event_sync_impl();
+}
+
+void replay_add_blocker(Error *reason)
+{
+}
+void replay_audio_in(size_t *recorded, void *samples, size_t *wpos, size_t size)
+{
+}
+void replay_audio_out(size_t *played)
+{
+}
+void replay_breakpoint(void)
+{
+}
+bool replay_can_snapshot(void)
+{
+    return false;
+}
+void replay_configure(struct QemuOpts *opts)
+{
+}
+void replay_flush_events(void)
+{
+}
+void replay_gdb_attached(void)
+{
+}
+bool replay_running_debug(void)
+{
+    return false;
+}
+void replay_shutdown_request(ShutdownCause cause)
+{
+}
+void replay_start(void)
+{
+}
+void replay_vmstate_init(void)
+{
+}
+
+#include "monitor/monitor.h"
+#include "monitor/hmp.h"
+#include "qapi/qapi-commands-replay.h"
+#include "qapi/error.h"
+#include "qemu/error-report.h"
+
+void hmp_info_replay(Monitor *mon, const QDict *qdict)
+{
+    error_report("replay support not available");
+}
+void hmp_replay_break(Monitor *mon, const QDict *qdict)
+{
+    error_report("replay support not available");
+}
+void hmp_replay_delete_break(Monitor *mon, const QDict *qdict)
+{
+    error_report("replay support not available");
+}
+void hmp_replay_seek(Monitor *mon, const QDict *qdict)
+{
+    error_report("replay support not available");
+}
+ReplayInfo *qmp_query_replay(Error **errp)
+{
+    error_set(errp, ERROR_CLASS_COMMAND_NOT_FOUND,
+              "replay support not available");
+    return NULL;
+}
+void qmp_replay_break(int64_t icount, Error **errp)
+{
+    error_set(errp, ERROR_CLASS_COMMAND_NOT_FOUND,
+              "replay support not available");
+}
+void qmp_replay_delete_break(Error **errp)
+{
+    error_set(errp, ERROR_CLASS_COMMAND_NOT_FOUND,
+              "replay support not available");
+}
+void qmp_replay_seek(int64_t icount, Error **errp)
+{
+    error_set(errp, ERROR_CLASS_COMMAND_NOT_FOUND,
+              "replay support not available");
+}
diff --git a/stubs/meson.build b/stubs/meson.build
index 67f2a8c069..057d7682e5 100644
--- a/stubs/meson.build
+++ b/stubs/meson.build
@@ -32,7 +32,6 @@  stub_ss.add(files('qtest.c'))
 stub_ss.add(files('ram-block.c'))
 stub_ss.add(files('ramfb.c'))
 stub_ss.add(files('replay.c'))
-stub_ss.add(files('replay-user.c'))
 stub_ss.add(files('runstate-check.c'))
 stub_ss.add(files('set-fd-handler.c'))
 stub_ss.add(files('sysbus.c'))
@@ -46,6 +45,9 @@  stub_ss.add(files('vmstate.c'))
 stub_ss.add(files('vm-stop.c'))
 stub_ss.add(files('win32-kbd-hook.c'))
 stub_ss.add(files('cpu-synchronize-state.c'))
+if have_block
+  stub_ss.add(files('replay-tools.c'))
+endif
 if have_system
   stub_ss.add(files('semihost.c'))
   stub_ss.add(files('xen-hw-stub.c'))
diff --git a/stubs/replay-tools.c b/stubs/replay-tools.c
new file mode 100644
index 0000000000..c06b360e22
--- /dev/null
+++ b/stubs/replay-tools.c
@@ -0,0 +1,83 @@ 
+#include "qemu/osdep.h"
+#include "sysemu/replay.h"
+#include "block/aio.h"
+
+bool replay_events_enabled(void)
+{
+    return false;
+}
+
+int64_t replay_save_clock(unsigned int kind, int64_t clock, int64_t raw_icount)
+{
+    abort();
+    return 0;
+}
+
+int64_t replay_read_clock(unsigned int kind)
+{
+    abort();
+    return 0;
+}
+
+uint64_t replay_get_current_icount(void)
+{
+    return 0;
+}
+
+void replay_bh_schedule_event(QEMUBH *bh)
+{
+    qemu_bh_schedule(bh);
+}
+
+void replay_bh_schedule_oneshot_event(AioContext *ctx,
+     QEMUBHFunc *cb, void *opaque)
+{
+    aio_bh_schedule_oneshot(ctx, cb, opaque);
+}
+
+bool replay_checkpoint(ReplayCheckpoint checkpoint)
+{
+    return true;
+}
+
+void replay_mutex_lock(void)
+{
+}
+
+void replay_mutex_unlock(void)
+{
+}
+
+void replay_register_char_driver(Chardev *chr)
+{
+}
+
+void replay_chr_be_write(Chardev *s, uint8_t *buf, int len)
+{
+    abort();
+}
+
+void replay_char_write_event_save(int res, int offset)
+{
+    abort();
+}
+
+void replay_char_write_event_load(int *res, int *offset)
+{
+    abort();
+}
+
+int replay_char_read_all_load(uint8_t *buf)
+{
+    abort();
+}
+
+void replay_char_read_all_save_error(int res)
+{
+    abort();
+}
+
+void replay_char_read_all_save_buf(uint8_t *buf, int offset)
+{
+    abort();
+}
diff --git a/stubs/replay-user.c b/stubs/replay-user.c
deleted file mode 100644
index 2ad9e27203..0000000000
--- a/stubs/replay-user.c
+++ /dev/null
@@ -1,9 +0,0 @@ 
-#include "qemu/osdep.h"
-#include "sysemu/replay.h"
-#include "sysemu/sysemu.h"
-
-void replay_bh_schedule_oneshot_event(AioContext *ctx,
-    QEMUBHFunc *cb, void *opaque)
-{
-    aio_bh_schedule_oneshot(ctx, cb, opaque);
-}
diff --git a/stubs/replay.c b/stubs/replay.c
index 45ebe77fb9..9d5b4be339 100644
--- a/stubs/replay.c
+++ b/stubs/replay.c
@@ -3,83 +3,10 @@ 
 
 ReplayMode replay_mode;
 
-int64_t replay_save_clock(unsigned int kind, int64_t clock, int64_t raw_icount)
-{
-    abort();
-    return 0;
-}
-
-int64_t replay_read_clock(unsigned int kind)
-{
-    abort();
-    return 0;
-}
-
-bool replay_checkpoint(ReplayCheckpoint checkpoint)
-{
-    return true;
-}
-
-bool replay_events_enabled(void)
-{
-    return false;
-}
-
 void replay_finish(void)
 {
 }
 
-void replay_register_char_driver(Chardev *chr)
-{
-}
-
-void replay_chr_be_write(Chardev *s, uint8_t *buf, int len)
-{
-    abort();
-}
-
-void replay_char_write_event_save(int res, int offset)
-{
-    abort();
-}
-
-void replay_char_write_event_load(int *res, int *offset)
-{
-    abort();
-}
-
-int replay_char_read_all_load(uint8_t *buf)
-{
-    abort();
-}
-
-void replay_char_read_all_save_error(int res)
-{
-    abort();
-}
-
-void replay_char_read_all_save_buf(uint8_t *buf, int offset)
-{
-    abort();
-}
-
-void replay_block_event(QEMUBH *bh, uint64_t id)
-{
-}
-
-uint64_t blkreplay_next_id(void)
-{
-    return 0;
-}
-
-void replay_mutex_lock(void)
-{
-}
-
-void replay_mutex_unlock(void)
-{
-}
-
 void replay_save_random(int ret, void *buf, size_t len)
 {
 }
@@ -89,11 +16,6 @@  int replay_read_random(void *buf, size_t len)
     return 0;
 }
 
-uint64_t replay_get_current_icount(void)
-{
-    return 0;
-}
-
 bool replay_reverse_step(void)
 {
     return false;
diff --git a/tests/ptimer-test-stubs.c b/tests/ptimer-test-stubs.c
index e935a1395e..7f801a4d09 100644
--- a/tests/ptimer-test-stubs.c
+++ b/tests/ptimer-test-stubs.c
@@ -122,8 +122,3 @@  void qemu_bh_delete(QEMUBH *bh)
 {
     g_free(bh);
 }
-
-void replay_bh_schedule_event(QEMUBH *bh)
-{
-    bh->cb(bh->opaque);
-}
diff --git a/tests/qtest/qmp-cmd-test.c b/tests/qtest/qmp-cmd-test.c
index 8a4c570e83..1c7186e53c 100644
--- a/tests/qtest/qmp-cmd-test.c
+++ b/tests/qtest/qmp-cmd-test.c
@@ -31,6 +31,9 @@  static int query_error_class(const char *cmd)
 #ifndef CONFIG_SPICE
         { "query-spice", ERROR_CLASS_COMMAND_NOT_FOUND },
 #endif
+#ifndef CONFIG_TCG
+        { "query-replay", ERROR_CLASS_COMMAND_NOT_FOUND },
+#endif
 #ifndef CONFIG_VNC
         { "query-vnc", ERROR_CLASS_GENERIC_ERROR },
         { "query-vnc-servers", ERROR_CLASS_GENERIC_ERROR },