[2/5] tpm: add stubs

Commit Message

Stefan Berger Oct. 25, 2017, 5:14 a.m. UTC

From: Philippe Mathieu-Daudé <[e-mail]>

Commit c37cacabf22 moved tpm_cleanup() in the main loop exit, however this
function is not available when compiling with --disable-tpm.

Provides necessary stubs to keep code clean of #ifdef'fery.

Reported-by: BALATON Zoltan <[e-mail]>
Message-Id: <[e-mail]>
Signed-off-by: Philippe Mathieu-Daudé <[e-mail]>
Tested-by: Richard W.M. Jones <[e-mail]>
Reviewed-by: Juan Quintela <[e-mail]>
Signed-off-by: Stefan Berger <[e-mail]>
---
 MAINTAINERS         |  1 +
 Makefile.objs       |  2 +-
 stubs/Makefile.objs |  1 +
 stubs/tpm.c         | 33 +++++++++++++++++++++++++++++++++
 4 files changed, 36 insertions(+), 1 deletion(-)
 create mode 100644 stubs/tpm.c

Patch

diff --git a/MAINTAINERS b/MAINTAINERS
index 1217542..2650063 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -1544,6 +1544,7 @@  TPM
 M: Stefan Berger <[e-mail]>
 S: Maintained
 F: tpm.c
+F: stubs/tpm.c
 F: hw/tpm/*
 F: include/hw/acpi/tpm.h
 F: include/sysemu/tpm*
diff --git a/Makefile.objs b/Makefile.objs
index d4f973a..285c6f3 100644
--- a/Makefile.objs
+++ b/Makefile.objs
@@ -62,7 +62,7 @@  bt-host.o-cflags := $(BLUEZ_CFLAGS)
 common-obj-y += dma-helpers.o
 common-obj-y += vl.o
 vl.o-cflags := $(GPROF_CFLAGS) $(SDL_CFLAGS)
-common-obj-y += tpm.o
+common-obj-$(CONFIG_TPM) += tpm.o
 
 common-obj-$(CONFIG_SLIRP) += slirp/
 
diff --git a/stubs/Makefile.objs b/stubs/Makefile.objs
index c759479..8cfe343 100644
--- a/stubs/Makefile.objs
+++ b/stubs/Makefile.objs
@@ -28,6 +28,7 @@  stub-obj-y += runstate-check.o
 stub-obj-y += set-fd-handler.o
 stub-obj-y += slirp.o
 stub-obj-y += sysbus.o
+stub-obj-y += tpm.o
 stub-obj-y += trace-control.o
 stub-obj-y += uuid.o
 stub-obj-y += vm-stop.o
diff --git a/stubs/tpm.c b/stubs/tpm.c
new file mode 100644
index 0000000..c18aac1
--- /dev/null
+++ b/stubs/tpm.c
@@ -0,0 +1,33 @@ 
+/*
+ * TPM stubs
+ *
+ * This work is licensed under the terms of the GNU GPL, version 2 or later.
+ * See the COPYING file in the top-level directory.
+ */
+#include "qemu/osdep.h"
+#include "sysemu/tpm.h"
+#include "qmp-commands.h"
+
+int tpm_init(void)
+{
+    return 0;
+}
+
+void tpm_cleanup(void)
+{
+}
+
+TPMInfoList *qmp_query_tpm(Error **errp)
+{
+    return NULL;
+}
+
+TpmTypeList *qmp_query_tpm_types(Error **errp)
+{
+    return NULL;
+}
+
+TpmModelList *qmp_query_tpm_models(Error **errp)
+{
+    return NULL;
+}