[Qemu-devel] [PATCH v2 0/4] tpm: add stubs to fix compiling with --disable-tpm

[Qemu-devel] [PATCH v2 0/4] tpm: add stubs to fix compiling with --disable-tpm

[Philippe Mathieu-Daudé]

This fixes building with --disable-tpm as reported by Zoltan:
  http://lists.nongnu.org/archive/html/qemu-devel/2017-10/msg05369.html

Cc'ing Peter in case this enters as a build fix instead of via trivial.

v2:
- added Richard W.M. Jones Tested-by tag
- remove #ifdef CONFIG_TPM in tpm.c (Stefan Berger)

Regards,

Phil.

PD: I missed Amarnath Valluri in my first series, you might want to add yourself
    a R: tag in MAINTAINTERS.
    
Philippe Mathieu-Daudé (4):
  tpm: add missing include
  tpm: add stubs
  tpm: remove unnecessary #ifdef CONFIG_TPM
  vl: remove unnecessary #ifdef CONFIG_TPM

 Makefile.objs        |  2 +-
 include/sysemu/tpm.h |  1 +
 stubs/tpm.c          | 33 +++++++++++++++++++++++++++++++++
 tpm.c                |  4 ----
 vl.c                 |  2 --
 MAINTAINERS          |  1 +
 stubs/Makefile.objs  |  1 +
 7 files changed, 37 insertions(+), 7 deletions(-)
 create mode 100644 stubs/tpm.c

-- 
2.15.0.rc1

[Qemu-devel] [PATCH v2 1/4] tpm: add missing include

[Philippe Mathieu-Daudé]

else file including "sysemu/tpm.h" fails to compile:

  In file included from qemu/stubs/tpm.c:2:0:
  qemu/include/sysemu/tpm.h:36:19: error: implicit declaration of function ‘object_resolve_path_type’ [-Werror=implicit-function-declaration]
       Object *obj = object_resolve_path_type("", TYPE_TPM_TIS, NULL);
                     ^~~~~~~~~~~~~~~~~~~~~~~~

Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Tested-by: Richard W.M. Jones <rjones@redhat.com>
---
 include/sysemu/tpm.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/include/sysemu/tpm.h b/include/sysemu/tpm.h
index c8afa179e5..d7a2bd8556 100644
--- a/include/sysemu/tpm.h
+++ b/include/sysemu/tpm.h
@@ -13,6 +13,7 @@
 #define QEMU_TPM_H
 
 #include "qemu/option.h"
+#include "qom/object.h"
 
 typedef struct TPMState TPMState;
 
-- 
2.15.0.rc1

[Qemu-devel] [PATCH v2 2/4] tpm: add stubs

[Philippe Mathieu-Daudé]

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 <balaton@eik.bme.hu>
Message-Id: <20171023102903.256AF7456A0@zero.eik.bme.hu>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Tested-by: Richard W.M. Jones <rjones@redhat.com>
---
 Makefile.objs       |  2 +-
 stubs/tpm.c         | 33 +++++++++++++++++++++++++++++++++
 MAINTAINERS         |  1 +
 stubs/Makefile.objs |  1 +
 4 files changed, 36 insertions(+), 1 deletion(-)
 create mode 100644 stubs/tpm.c

diff --git a/Makefile.objs b/Makefile.objs
index d4f973a8fc..285c6f3c15 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/tpm.c b/stubs/tpm.c
new file mode 100644
index 0000000000..c18aac1c73
--- /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;
+}
diff --git a/MAINTAINERS b/MAINTAINERS
index 12175425a7..2650063242 100644
--- a/MAINTAINERS
+++ b/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*
diff --git a/stubs/Makefile.objs b/stubs/Makefile.objs
index c7594796c3..8cfe34328a 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
-- 
2.15.0.rc1

[Qemu-devel] [PATCH v2 3/4] tpm: remove unnecessary #ifdef CONFIG_TPM

[Philippe Mathieu-Daudé]

Makefile.objs now checks for $(CONFIG_TPM).

Suggested-by: Stefan Berger <stefanb@linux.vnet.ibm.com>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
---
 tpm.c | 4 ----
 1 file changed, 4 deletions(-)

diff --git a/tpm.c b/tpm.c
index 45520f555d..ab5d29e91e 100644
--- a/tpm.c
+++ b/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.
-- 
2.15.0.rc1

[Qemu-devel] [PATCH v2 4/4] vl: remove unnecessary #ifdef CONFIG_TPM

[Philippe Mathieu-Daudé]

a stub is now provided.

Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Tested-by: Richard W.M. Jones <rjones@redhat.com>
---
 vl.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/vl.c b/vl.c
index 0723835bbf..ec299099ff 100644
--- a/vl.c
+++ b/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))
-- 
2.15.0.rc1

Re: [Qemu-devel] [PATCH v2 0/4] tpm: add stubs to fix compiling with --disable-tpm

[Richard W.M. Jones]

On Tue, Oct 24, 2017 at 09:20:41AM -0300, Philippe Mathieu-Daudé wrote:
> This fixes building with --disable-tpm as reported by Zoltan:
>   http://lists.nongnu.org/archive/html/qemu-devel/2017-10/msg05369.html
> 
> Cc'ing Peter in case this enters as a build fix instead of via trivial.
> 
> v2:
> - added Richard W.M. Jones Tested-by tag
> - remove #ifdef CONFIG_TPM in tpm.c (Stefan Berger)

Can confirm v2 works as well.

Rich.

-- 
Richard Jones, Virtualization Group, Red Hat http://people.redhat.com/~rjones
Read my programming and virtualization blog: http://rwmj.wordpress.com
virt-df lists disk usage of guests without needing to install any
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http://people.redhat.com/~rjones/virt-df/

Re: [Qemu-devel] [PATCH v2 0/4] tpm: add stubs to fix compiling with --disable-tpm

[Philippe Mathieu-Daudé]

>> v2:
>> - added Richard W.M. Jones Tested-by tag
>> - remove #ifdef CONFIG_TPM in tpm.c (Stefan Berger)
> 
> Can confirm v2 works as well.

Thanks for testing!

Re: [Qemu-devel] [PATCH v2 3/4] tpm: remove unnecessary #ifdef CONFIG_TPM

[Stefan Berger]

On 10/24/2017 08:20 AM, Philippe Mathieu-Daudé wrote:
> Makefile.objs now checks for $(CONFIG_TPM).
>
> Suggested-by: Stefan Berger <stefanb@linux.vnet.ibm.com>
> Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>

Reviewed-by: Stefan Berger <stefanb@linux.vnet.ibm.com>

> ---
>   tpm.c | 4 ----
>   1 file changed, 4 deletions(-)
>
> diff --git a/tpm.c b/tpm.c
> index 45520f555d..ab5d29e91e 100644
> --- a/tpm.c
> +++ b/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.

Re: [Qemu-devel] [PATCH v2 0/4] tpm: add stubs to fix compiling with --disable-tpm

[Amarnath Valluri]

On Tue, 2017-10-24 at 09:20 -0300, Philippe Mathieu-Daudé wrote:
> This fixes building with --disable-tpm as reported by Zoltan:
>   http://lists.nongnu.org/archive/html/qemu-devel/2017-10/msg05369.html
> 
> Cc'ing Peter in case this enters as a build fix instead of via trivial.
> 
> v2:
> - added Richard W.M. Jones Tested-by tag
> - remove #ifdef CONFIG_TPM in tpm.c (Stefan Berger)
> 
> Regards,
> 
> Phil.
> 
> PD: I missed Amarnath Valluri in my first series, you might want to add yourself
>     a R: tag in MAINTAINTERS.
>     
> Philippe Mathieu-Daudé (4):
>   tpm: add missing include
>   tpm: add stubs
>   tpm: remove unnecessary #ifdef CONFIG_TPM
>   vl: remove unnecessary #ifdef CONFIG_TPM
> 
>  Makefile.objs        |  2 +-
>  include/sysemu/tpm.h |  1 +
>  stubs/tpm.c          | 33 +++++++++++++++++++++++++++++++++
>  tpm.c                |  4 ----
>  vl.c                 |  2 --
>  MAINTAINERS          |  1 +
>  stubs/Makefile.objs  |  1 +
>  7 files changed, 37 insertions(+), 7 deletions(-)
>  create mode 100644 stubs/tpm.c
> 
+1, Nice cleanup in my opinion, now it looks much cleaner.

- Amarnath

Re: [Qemu-devel] [PATCH v2 2/4] tpm: add stubs

[Juan Quintela]

Philippe Mathieu-Daudé <f4bug@amsat.org> wrote:
> 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 <balaton@eik.bme.hu>
> Message-Id: <20171023102903.256AF7456A0@zero.eik.bme.hu>
> Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
> Tested-by: Richard W.M. Jones <rjones@redhat.com>

Reviewed-by: Juan Quintela <quintela@redhat.com>

Re: [Qemu-devel] [PATCH v2 3/4] tpm: remove unnecessary #ifdef CONFIG_TPM

[Juan Quintela]

Philippe Mathieu-Daudé <f4bug@amsat.org> wrote:
> Makefile.objs now checks for $(CONFIG_TPM).
>
> Suggested-by: Stefan Berger <stefanb@linux.vnet.ibm.com>
> Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>

Reviewed-by: Juan Quintela <quintela@redhat.com>

Re: [Qemu-devel] [PATCH v2 4/4] vl: remove unnecessary #ifdef CONFIG_TPM

[Juan Quintela]

Philippe Mathieu-Daudé <f4bug@amsat.org> wrote:
> a stub is now provided.
>
> Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
> Tested-by: Richard W.M. Jones <rjones@redhat.com>

Reviewed-by: Juan Quintela <quintela@redhat.com>

Re: [Qemu-devel] [PATCH v2 0/4] tpm: add stubs to fix compiling with --disable-tpm

[Philippe Mathieu-Daudé]

Hi Amarnath,

On 10/24/2017 03:19 PM, Amarnath Valluri wrote:
> On Tue, 2017-10-24 at 09:20 -0300, Philippe Mathieu-Daudé wrote:
>> This fixes building with --disable-tpm as reported by Zoltan:
>>   http://lists.nongnu.org/archive/html/qemu-devel/2017-10/msg05369.html
[...]
> +1, Nice cleanup in my opinion, now it looks much cleaner.

Thanks, however I'm not sure what a +1 means, is it equivalent to an
Acked-by or a Reviewed-by tag? If so it would be better to write them
explicitly.

Regards,

Phil.

Re: [Qemu-devel] [PATCH v2 4/4] vl: remove unnecessary #ifdef CONFIG_TPM

[Valluri, Amarnath]

On Tue, 2017-10-24 at 09:20 -0300, Philippe Mathieu-Daudé wrote:
> a stub is now provided.
> 
> Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
> Tested-by: Richard W.M. Jones <rjones@redhat.com>

Reviewed-by: Amarnath Valluri <amarnath.valluri@intel.com>

> ---
>  vl.c | 2 --
>  1 file changed, 2 deletions(-)
> Reviewed-by:
> diff --git a/vl.c b/vl.c
> index 0723835bbf..ec299099ff 100644
> --- a/vl.c
> +++ b/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))

Re: [Qemu-devel] [PATCH v2 3/4] tpm: remove unnecessary #ifdef CONFIG_TPM

[Valluri, Amarnath]

On Tue, 2017-10-24 at 09:20 -0300, Philippe Mathieu-Daudé wrote:
> Makefile.objs now checks for $(CONFIG_TPM).
> 
> Suggested-by: Stefan Berger <stefanb@linux.vnet.ibm.com>
> Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
> ---

Reviewed-by: Amarnath Valluri <amarnath.valluri@intel.com>

>  tpm.c | 4 ----
>  1 file changed, 4 deletions(-)
> 
> diff --git a/tpm.c b/tpm.c
> index 45520f555d..ab5d29e91e 100644
> --- a/tpm.c
> +++ b/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.

Re: [Qemu-devel] [PATCH v2 2/4] tpm: add stubs

[Valluri, Amarnath]

On Tue, 2017-10-24 at 09:20 -0300, Philippe Mathieu-Daudé wrote:
> 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 <balaton@eik.bme.hu>
> Message-Id: <20171023102903.256AF7456A0@zero.eik.bme.hu>
> Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
> Tested-by: Richard W.M. Jones <rjones@redhat.com>
> ---
Reviewed-by: Amarnath Valluri <amarnath.valluri@intel.com>