* [PATCH v9 0/3] Enable PPI sysfs interface for TPM 2.0
@ 2015-09-29 7:36 Jarkko Sakkinen
2015-09-29 7:36 ` [PATCH v9 3/3] tpm: update PPI documentation to address the location change Jarkko Sakkinen
0 siblings, 1 reply; 3+ messages in thread
From: Jarkko Sakkinen @ 2015-09-29 7:36 UTC (permalink / raw)
To: tpmdd-devel-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f,
linux-kernel-u79uwXL29TY76Z2rM5mHXA
Cc: peterhuewe-Mmb7MZpHnFY, gregkh-hQyY1W1yCW8ekmWlsbkhG0B+6BGkLq7r,
jgunthorpe-ePGOBjL8dl3ta4EC/59zMFaTQe2KTcn/,
akpm-de/tnXTf+JLsfHDXvbKv3WD2FQJk+8+b, Jarkko Sakkinen,
Eric W. Biederman, Guenter Roeck, open list:ABI/API, NeilBrown,
Tejun Heo, Vivien Didelot
v9:
* Fixed naming for __compat_only_sysfs_link_entry_to_kobj()
v8:
* Renamed sysfs_link_entry_to_kobj() to
__compat_only_sysfs_link_entry_to_kobj()
v7:
* Fixed compile error when CONFIG_SYSFS is not enabled.
v6:
* Updated documentation.
v5:
* Removed dangling export of kernfs_remove_by_name_ns() from the sysfs
patch.
v4:
* Use sysfs_remove_link()
v3:
* Fixed to_tpm_chip() macro.
* Split into two patches.
* Renamed sysfs_link_group_to_kobj to sysfs_link_entry_to_kobj
* Only create the "backwards compatibility" symlink for TPM 1.x devices.
Jarkko Sakkinen (3):
sysfs: added __compat_only_sysfs_link_entry_to_kobj()
tpm: move the PPI attributes to character device directory.
tpm: update PPI documentation to address the location change.
Documentation/ABI/testing/sysfs-driver-ppi | 19 ++++++++-----
drivers/char/tpm/tpm-chip.c | 24 ++++++++++------
drivers/char/tpm/tpm.h | 17 ++++--------
drivers/char/tpm/tpm_ppi.c | 34 ++++++++---------------
fs/sysfs/group.c | 44 ++++++++++++++++++++++++++++++
include/linux/sysfs.h | 11 ++++++++
6 files changed, 100 insertions(+), 49 deletions(-)
--
2.5.0
^ permalink raw reply [flat|nested] 3+ messages in thread
* [PATCH v9 3/3] tpm: update PPI documentation to address the location change.
2015-09-29 7:36 [PATCH v9 0/3] Enable PPI sysfs interface for TPM 2.0 Jarkko Sakkinen
@ 2015-09-29 7:36 ` Jarkko Sakkinen
0 siblings, 0 replies; 3+ messages in thread
From: Jarkko Sakkinen @ 2015-09-29 7:36 UTC (permalink / raw)
To: tpmdd-devel, linux-kernel
Cc: peterhuewe, gregkh, jgunthorpe, akpm, Jarkko Sakkinen,
open list:ABI/API
Updated Documentation/ABI/testing/sysfs-driver-ppi in order to explain
where PPI attributes are located and how backwards compatiblity is
addressed.
Signed-off-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
---
Documentation/ABI/testing/sysfs-driver-ppi | 19 ++++++++++++-------
1 file changed, 12 insertions(+), 7 deletions(-)
diff --git a/Documentation/ABI/testing/sysfs-driver-ppi b/Documentation/ABI/testing/sysfs-driver-ppi
index 7d1435b..9921ef2 100644
--- a/Documentation/ABI/testing/sysfs-driver-ppi
+++ b/Documentation/ABI/testing/sysfs-driver-ppi
@@ -1,4 +1,4 @@
-What: /sys/devices/pnp0/<bus-num>/ppi/
+What: /sys/class/tpm/tpmX/ppi/
Date: August 2012
Kernel Version: 3.6
Contact: xiaoyan.zhang@intel.com
@@ -8,9 +8,14 @@ Description:
folder makes sense. The folder path can be got by command
'find /sys/ -name 'pcrs''. For the detail information of PPI,
please refer to the PPI specification from
+
http://www.trustedcomputinggroup.org/
-What: /sys/devices/pnp0/<bus-num>/ppi/version
+ In Linux 4.2 ppi was moved to the character device directory.
+ A symlink from tpmX/device/ppi to tpmX/ppi to provide backwards
+ compatibility.
+
+What: /sys/class/tpm/tpmX/ppi/version
Date: August 2012
Contact: xiaoyan.zhang@intel.com
Description:
@@ -18,7 +23,7 @@ Description:
platform.
This file is readonly.
-What: /sys/devices/pnp0/<bus-num>/ppi/request
+What: /sys/class/tpm/tpmX/ppi/request
Date: August 2012
Contact: xiaoyan.zhang@intel.com
Description:
@@ -28,7 +33,7 @@ Description:
integer value range from 1 to 160, and 0 means no request.
This file can be read and written.
-What: /sys/devices/pnp0/00:<bus-num>/ppi/response
+What: /sys/class/tpm/tpmX/ppi/response
Date: August 2012
Contact: xiaoyan.zhang@intel.com
Description:
@@ -37,7 +42,7 @@ Description:
: <response description>".
This file is readonly.
-What: /sys/devices/pnp0/<bus-num>/ppi/transition_action
+What: /sys/class/tpm/tpmX/ppi/transition_action
Date: August 2012
Contact: xiaoyan.zhang@intel.com
Description:
@@ -47,7 +52,7 @@ Description:
description>".
This file is readonly.
-What: /sys/devices/pnp0/<bus-num>/ppi/tcg_operations
+What: /sys/class/tpm/tpmX/ppi/tcg_operations
Date: August 2012
Contact: xiaoyan.zhang@intel.com
Description:
@@ -58,7 +63,7 @@ Description:
This attribute is only supported by PPI version 1.2+.
This file is readonly.
-What: /sys/devices/pnp0/<bus-num>/ppi/vs_operations
+What: /sys/class/tpm/tpmX/ppi/vs_operations
Date: August 2012
Contact: xiaoyan.zhang@intel.com
Description:
--
2.5.0
^ permalink raw reply related [flat|nested] 3+ messages in thread
* [PATCH v9 0/3] Enable PPI sysfs interface for TPM 2.0
@ 2015-08-12 14:05 Jarkko Sakkinen
[not found] ` <1439388347-22325-1-git-send-email-jarkko.sakkinen-VuQAYsv1563Yd54FQh9/CA@public.gmane.org>
0 siblings, 1 reply; 3+ messages in thread
From: Jarkko Sakkinen @ 2015-08-12 14:05 UTC (permalink / raw)
To: tpmdd-devel-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f,
linux-kernel-u79uwXL29TY76Z2rM5mHXA
Cc: peterhuewe-Mmb7MZpHnFY, gregkh-hQyY1W1yCW8ekmWlsbkhG0B+6BGkLq7r,
jgunthorpe-ePGOBjL8dl3ta4EC/59zMFaTQe2KTcn/, Jarkko Sakkinen,
Eric W. Biederman, Guenter Roeck, open list:ABI/API, NeilBrown,
Tejun Heo
v9:
* Fixed naming for __compat_only_sysfs_link_entry_to_kobj()
v8:
* Renamed sysfs_link_entry_to_kobj() to
__compat_only_sysfs_link_entry_to_kobj()
v7:
* Fixed compile error when CONFIG_SYSFS is not enabled.
v6:
* Updated documentation.
v5:
* Removed dangling export of kernfs_remove_by_name_ns() from the sysfs
patch.
v4:
* Use sysfs_remove_link()
v3:
* Fixed to_tpm_chip() macro.
* Split into two patches.
* Renamed sysfs_link_group_to_kobj to sysfs_link_entry_to_kobj
* Only create the "backwards compatibility" symlink for TPM 1.x devices.
Jarkko Sakkinen (3):
sysfs: added __compat_only_sysfs_link_entry_to_kobj()
tpm: move the PPI attributes to character device directory.
tpm: update PPI documentation to address the location change.
Documentation/ABI/testing/sysfs-driver-ppi | 19 ++++++++-----
drivers/char/tpm/tpm-chip.c | 24 ++++++++++------
drivers/char/tpm/tpm.h | 17 ++++--------
drivers/char/tpm/tpm_ppi.c | 34 ++++++++---------------
fs/sysfs/group.c | 44 ++++++++++++++++++++++++++++++
include/linux/sysfs.h | 11 ++++++++
6 files changed, 100 insertions(+), 49 deletions(-)
--
2.5.0
^ permalink raw reply [flat|nested] 3+ messages in thread
end of thread, other threads:[~2015-09-29 7:36 UTC | newest]
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2015-09-29 7:36 [PATCH v9 0/3] Enable PPI sysfs interface for TPM 2.0 Jarkko Sakkinen
2015-09-29 7:36 ` [PATCH v9 3/3] tpm: update PPI documentation to address the location change Jarkko Sakkinen
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