Merge remote-tracking branch 'remotes/stefanberger/tags/pull-tpm-2017-10-24-1' into staging

Merge tpm 2017/10/24 v1

# gpg: Signature made Wed 25 Oct 2017 06:06:55 BST
# gpg:                using RSA key 0x75AD65802A0B4211
# gpg: Good signature from "Stefan Berger <stefanb@linux.vnet.ibm.com>"
# gpg: WARNING: This key is not certified with a trusted signature!
# gpg:          There is no indication that the signature belongs to the owner.
# Primary key fingerprint: B818 B9CA DF90 89C2 D5CE  C66B 75AD 6580 2A0B 4211

* remotes/stefanberger/tags/pull-tpm-2017-10-24-1:
  tpm: print buffers received from TPM when debugging
  vl: remove unnecessary #ifdef CONFIG_TPM
  tpm: remove unnecessary #ifdef CONFIG_TPM
  tpm: add stubs
  tpm: add missing include

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

MAINTAINERS

@@ -1544,6 +1544,7 @@ TPM
 M: Stefan Berger <stefanb@linux.vnet.ibm.com>
 S: Maintained
 F: tpm.c
+F: stubs/tpm.c
 F: hw/tpm/*
 F: include/hw/acpi/tpm.h
 F: include/sysemu/tpm*

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/
 

hw/tpm/tpm_tis.c

@@ -422,6 +422,8 @@ static void tpm_tis_receive_bh(void *opaque)
     s->loc[locty].r_offset = 0;
     s->loc[locty].w_offset = 0;
 
+    tpm_tis_show_buffer(&s->loc[locty].r_buffer, "tpm_tis: From TPM");
+
     if (TPM_TIS_IS_VALID_LOCTY(s->next_locty)) {
         tpm_tis_abort(s, locty);
     }

include/sysemu/tpm.h

@@ -13,6 +13,7 @@
 #define QEMU_TPM_H
 
 #include "qemu/option.h"
+#include "qom/object.h"
 
 typedef struct TPMState TPMState;
 

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

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;
+}

tpm.c

@@ -30,8 +30,6 @@ void tpm_register_model(enum TpmModel model)
     tpm_models[model] = true;
 }
 
-#ifdef CONFIG_TPM
-
 static const TPMBackendClass *
 tpm_be_find_by_type(enum TpmType type)
 {
@@ -192,8 +190,6 @@ int tpm_config_parse(QemuOptsList *opts_list, const char *optarg)
     return 0;
 }
 
-#endif /* CONFIG_TPM */
-
 /*
  * Walk the list of active TPM backends and collect information about them
  * following the schema description in qapi-schema.json.

vl.c

@@ -4624,11 +4624,9 @@ int main(int argc, char **argv, char **envp)
         exit(1);
     }
 
-#ifdef CONFIG_TPM
     if (tpm_init() < 0) {
         exit(1);
     }
-#endif
 
     /* init the bluetooth world */
     if (foreach_device_config(DEV_BT, bt_parse))