> On Wed, Sep 07, 2016 at 02:32:31PM +0300, Tomas Winkler wrote:
> > The register TPM_CRB_CTRL_REQ_x contains bits goIdle and cmdReady for
> > SW to indicate that the device can enter or should exit the idle state.
> >
> > The legacy ACPI-start (SMI + DMA) based devices do not support these
> > bit
>
> On Wed, Sep 07, 2016 at 02:32:32PM +0300, Tomas Winkler wrote:
> > INIT_LIST_HEAD(&resources);
> > - ret = acpi_dev_get_resources(device, &resources,
> crb_check_resource,
> > -&io_res);
> > + ret = acpi_dev_get_resources(device, &resources,
> > +
>
> On Wed, Sep 07, 2016 at 09:21:34PM +, Winkler, Tomas wrote:
> >
> > >
> > > On Wed, Sep 07, 2016 at 02:32:32PM +0300, Tomas Winkler wrote:
> > > > INIT_LIST_HEAD(&resources);
> > > > - ret = acpi_dev_
> -Original Message-
> From: Jason Gunthorpe [mailto:jguntho...@obsidianresearch.com]
> Sent: Thursday, September 08, 2016 00:55
> To: Winkler, Tomas
> Cc: tpmdd-devel@lists.sourceforge.net; Jarkko Sakkinen
>
> Subject: Re: [tpmdd-devel] [PATCH 1/3] tpm/tpm_c
>
> On Wed, Sep 07, 2016 at 10:17:22PM +, Winkler, Tomas wrote:
>
> > I think there is a memory leak in tpm_tis on the error path; maybe a
> > missing call to dev_put, not sure I had just quick look.
>
> tpmm_alloc uses devm, so the put happens in a devm cleanu
> On Wed, Sep 07, 2016 at 10:28:45PM +0000, Winkler, Tomas wrote:
> > >
> > > On Wed, Sep 07, 2016 at 10:17:22PM +, Winkler, Tomas wrote:
> > >
> > > > I think there is a memory leak in tpm_tis on the error path; maybe
> > > > a m
> -Original Message-
> From: Jarkko Sakkinen [mailto:jarkko.sakki...@linux.intel.com]
> Sent: Thursday, September 08, 2016 14:18
> To: Winkler, Tomas
> Cc: tpmdd-devel@lists.sourceforge.net
> Subject: Re: [PATCH 1/3] tpm/tpm_crb: implement tpm crb idle state
>
>
>
> On Mon, Sep 12, 2016 at 01:49:16PM +0300, Jarkko Sakkinen wrote:
> > On Mon, Sep 12, 2016 at 02:03:53AM +0300, Tomas Winkler wrote:
> > > Instead of expensive register access on retrieving cmd_size on each
> > > send, save the value during initialization in the private context.
> > > The value
> -Original Message-
> From: Jarkko Sakkinen [mailto:jarkko.sakki...@linux.intel.com]
> Sent: Monday, September 12, 2016 15:01
> To: Winkler, Tomas
> Cc: tpmdd-devel@lists.sourceforge.net; Jason Gunthorpe
>
> Subject: Re: [PATCH v2 1/4] tpm/tpm_crb: impleme
> -Original Message-
> From: Jarkko Sakkinen [mailto:jarkko.sakki...@linux.intel.com]
> Sent: Monday, September 12, 2016 16:32
> To: Winkler, Tomas
> Cc: tpmdd-devel@lists.sourceforge.net; Jason Gunthorpe
>
> Subject: Re: [PATCH v2 1/4] tpm/tpm_crb: implement tpm c
>
> On Mon, Sep 12, 2016 at 11:54:58AM +0300, Tomas Winkler wrote:
> > The register TPM_CRB_CTRL_REQ_x contains bits goIdle and cmdReady for
> > SW to indicate that the device can enter or should exit the idle state.
> >
> > The legacy ACPI-start (SMI + DMA) based devices do not support these
> >
> On Mon, Sep 12, 2016 at 11:39:02AM -0600, Jason Gunthorpe wrote:
> > On Mon, Sep 12, 2016 at 12:25:21PM +, Winkler, Tomas wrote:
> >
> > > > @pdev: CRB platform device
> > >
> > > I find pdev here a bit misleading this is not a platform
>
> On Mon, Sep 12, 2016 at 11:55:00AM +0300, Tomas Winkler wrote:
> > This is preparation step for implementing tpm crb runtime pm. We need
> > to have tpm chip allocated and populated before we access the runtime
> > handlers.
>
> This should probably be the first patch and then you can use the
>
> On Mon, Sep 12, 2016 at 08:26:34PM +, Winkler, Tomas wrote:
> > > > Signed-off-by: Tomas Winkler
> > > > V2: do not export the functions via tpm ops
> > >
> > > You need to restructure this series, do not implement functions that
>
On Mon, 2016-09-12 at 16:04 +0300, Tomas Winkler wrote:
> Te overall platform ability to enter a low power state is also
> conditioned on the ability of a tpm device to go to idle state.
> This series should provide this feature.
>
> Unfortunately, there is a HW bug on Intel PTT devices on Skylake
> Subject: Re: [PATCH v3 1/4] tpm/tpm_crb: implement tpm crb idle state
>
> On Mon, Sep 12, 2016 at 04:04:18PM +0300, Tomas Winkler wrote:
> > The register TPM_CRB_CTRL_REQ_x contains bits goIdle and cmdReady for
> > SW to indicate that the device can enter or should exit the idle state.
> >
> > T
> > > Subject: Re: [PATCH v3 1/4] tpm/tpm_crb: implement tpm crb idle
> > > state
> > >
> > > On Mon, Sep 12, 2016 at 04:04:18PM +0300, Tomas Winkler wrote:
> > > > The register TPM_CRB_CTRL_REQ_x contains bits goIdle and cmdReady
> > > > for SW to indicate that the device can enter or should exit
> On Thu, Sep 15, 2016 at 08:23:03AM +0000, Winkler, Tomas wrote:
> > > > > Subject: Re: [PATCH v3 1/4] tpm/tpm_crb: implement tpm crb idle
> > > > > state
> > > > >
> > > > > On Mon, Sep 12, 2016 at 04:04:18PM +0300, Tomas Winkler w
> -Original Message-
> From: Jarkko Sakkinen [mailto:jarkko.sakki...@linux.intel.com]
> Sent: Monday, September 19, 2016 23:22
> To: Peter Huewe
> Cc: moderated list:TPM DEVICE DRIVER de...@lists.sourceforge.net>; open list
> Subject: [tpmdd-devel] [PATCH 2/2] tpm: fix bad constant expr
> On Tue, Sep 20, 2016 at 07:08:40AM +0000, Winkler, Tomas wrote:
> >
> > > -Original Message-
> > > From: Jarkko Sakkinen [mailto:jarkko.sakki...@linux.intel.com]
> > > Sent: Monday, September 19, 2016 23:22
> > > To: Peter Huewe
>
>
> Hi
>
> I get this (probably every time) when I do rmmod:
>
> [ 4372.725616] tpm tpm0: A TPM error (325) occurred stopping the TPM
>
> That is probably caused by failing TPM2_Shutdown. My guess is that runtime
> PM patches cause this.
>
> I'll verify that the problem does not occur with th
> On Tue, Sep 20, 2016 at 01:30:58PM +0000, Winkler, Tomas wrote:
> >
> > >
> > > Hi
> > >
> > > I get this (probably every time) when I do rmmod:
> > >
> > > [ 4372.725616] tpm tpm0: A TPM error (325) occurred stopping the TPM
> &g
>
> On Tue, Sep 20, 2016 at 07:26:08PM +, Winkler, Tomas wrote:
> > > On Tue, Sep 20, 2016 at 01:30:58PM +, Winkler, Tomas wrote:
> > > >
> > > > >
> > > > > Hi
> > > > >
> > > > > I get this (probabl
>
> On Thu, Sep 15, 2016 at 09:23:29AM +0300, Jarkko Sakkinen wrote:
> > On Mon, Sep 12, 2016 at 04:04:19PM +0300, Tomas Winkler wrote:
> > > There is a HW bug in Skylake, and Broxton PCH Intel PTT device,
> > > where most of the registers in the control area except START,
> > > REQUEST, CANCEL, a
> On Sun, Oct 02, 2016 at 01:24:55PM +0300, Jarkko Sakkinen wrote:
> > On Sun, Oct 02, 2016 at 01:17:55PM +0300, Jarkko Sakkinen wrote:
> > > On Sun, Oct 02, 2016 at 10:39:31AM +0300, Tomas Winkler wrote:
> > > > In tpm_del_char_device device_del is called prior to tpm2_shutdown
> > > > where it i
>
> > On Sun, Oct 02, 2016 at 01:24:55PM +0300, Jarkko Sakkinen wrote:
> > > On Sun, Oct 02, 2016 at 01:17:55PM +0300, Jarkko Sakkinen wrote:
> > > > On Sun, Oct 02, 2016 at 10:39:31AM +0300, Tomas Winkler wrote:
> > > > > In tpm_del_char_device device_del is called prior to
> > > > > tpm2_shutdow
>
> On Mon, Oct 03, 2016 at 03:42:25PM +0300, Jarkko Sakkinen wrote:
>
> > > I've looked to the registration code and it indeed has few more
> > > issues
>
> ?
>
> > > Maybe TPM_CHIP_FLAG_REGISTERED can be used for sealing the access to
> > > the device during deregistration, current usage is v
> On Mon, Oct 03, 2016 at 07:05:48AM +0000, Winkler, Tomas wrote:
>
> > > This patch is wrong, I though the comments were clear. All entry
> > > points to find the device must be deleted before we commit to shutting
> down the device.
> > >
> > > Y
> On Tue, Oct 04, 2016 at 08:19:46AM +0300, Jarkko Sakkinen wrote:
>
> > > Make the driver uncallable first. The worst race that can happen is
> > > that open("/dev/tpm0", ...) returns -EPIPE. I do not consider this
> > > fatal at all.
> >
> > No responses for this reasonable proposal so I'll sho
> >
> > > On Tue, Oct 04, 2016 at 08:19:46AM +0300, Jarkko Sakkinen wrote:
> > >
> > > > > Make the driver uncallable first. The worst race that can happen
> > > > > is that open("/dev/tpm0", ...) returns -EPIPE. I do not consider
> > > > > this fatal at all.
> > > >
> > > > No responses for this r
> On Wed, Oct 05, 2016 at 04:12:08PM +0300, Tomas Winkler wrote:
> > Encapsulate the start method parsing in a single function and add
> > needed debug printouts.
> > It eliminates small issue with useless double checking for
> > ACPI_TPM2_MEMORY_MAPPED.
>
> Start method is trival to check from TP
>
> On Wed, Oct 05, 2016 at 07:48:59AM +, Winkler, Tomas wrote:
> > > > down_write(&chip->ops_sem);
> > > > chip->ops = NULL;
> > > > up_write(&chip->ops_sem);
> > >
> > > No, that is wrong as well, another t
> On Wed, Oct 05, 2016 at 08:09:17PM +0000, Winkler, Tomas wrote:
>
> > It could, but that patch was not merged yet, and I believe even if the
> > issue is exposed only with runtime_pm currently, we have a bug in
> > design even w/o runtime pm.
>
> Please
> On Thu, Oct 06, 2016 at 12:43:13AM +0000, Winkler, Tomas wrote:
>
> > > You keep asserting that, but it just isn't true at all.
> >
> > Okay, let's rephrase, that calling device_del before tpm_transmit is not
> > sane
> when using runtime_pm.
> Subject: Re: [PATCH] tpm: don't destroy chip device prematurely
>
> On Fri, Oct 07, 2016 at 02:24:59PM +0000, Winkler, Tomas wrote:
>
> > So here I'm to say I'm sorry for misleading this, after all the doubts
> > I got back to debugging and tra
>
> On Sat, Oct 08, 2016 at 02:59:39PM +0300, Tomas Winkler wrote:
> > From: "Winkler, Tomas"
> >
> > Utilize runtime_pm for driving tpm crb idle states.
> > The framework calls cmd_ready from the pm_runtime_resume handler and
> > go idle fr
>
> On Sat, Oct 08, 2016 at 02:59:37PM +0300, Tomas Winkler wrote:
> > From: "Winkler, Tomas"
> >
> > There is a HW bug in Skylake, Kabylake, and Broxton PCH Intel PTT
> > device, where most of the registers in the control area except START,
> > REQ
>
> On Sat, Oct 08, 2016 at 02:27:06PM +, Winkler, Tomas wrote:
> > >
> > > On Sat, Oct 08, 2016 at 02:59:37PM +0300, Tomas Winkler wrote:
> > > > From: "Winkler, Tomas"
> > > >
> > > > There is a HW bug in Skylake,
> On Sat, Oct 08, 2016 at 07:00:06PM +0300, Jarkko Sakkinen wrote:
>
> > Rather you it would be better not to use cmdReady/goIdle at all if
> > kernel is not compiled with CONFIG_PM.
>
> It would be best practice to ensure the tpm is powered up no matter how the
> kernel is compiled.. The firmwa
> Subject: Re: [PATCH 2/4] tmp/tpm_crb: fix Intel PTT hw bug during idle state
>
> On Sat, Oct 08, 2016 at 04:56:39PM +, Winkler, Tomas wrote:
> >
> > >
> > > On Sat, Oct 08, 2016 at 02:27:06PM +, Winkler, Tomas wrote:
> > > > >
> >
> -Original Message-
> From: Jarkko Sakkinen [mailto:jarkko.sakki...@linux.intel.com]
> Sent: Saturday, October 08, 2016 19:01
> To: Winkler, Tomas
> Cc: tpmdd-devel@lists.sourceforge.net; Jason Gunthorpe
> ; linux-ker...@vger.kernel.org
> Subject: Re: [PATCH 4/4] t
>
> > Subject: Re: [PATCH 2/4] tmp/tpm_crb: fix Intel PTT hw bug during idle
> > state
> >
> > On Sat, Oct 08, 2016 at 04:56:39PM +, Winkler, Tomas wrote:
> > >
> > > >
> > > > On Sat, Oct 08, 2016 at 02:27:06PM +, Winkler, Tom
> Like TPM 1.2, the current device driver for TPM 2.0 supports extending only to
> the SHA1 PCR bank. But the TPM 2.0 supports multiple PCR banks and the
> specification recommends extending to all active PCR banks, this patch
> enhances the existing device driver support for TPM 2.0 extend functio
>
> Request and relinquish locality for the driver use in order to be a better
> citizen
> in a multi locality environment like with TXT as it uses locality 2.
>
> Signed-off-by: Jarkko Sakkinen
> ---
> drivers/char/tpm/tpm_crb.c | 36
> 1 file changed
> >
> > >
> > > Request and relinquish locality for the driver use in order to be a better
> citizen
> > > in a multi locality environment like with TXT as it uses locality 2.
> >
> > >
> > > Signed-off-by: Jarkko Sakkinen
> > > ---
> > > drivers/char/tpm/tpm_crb.c | 36
> > > +++
> -Original Message-
> From: Jason Gunthorpe [mailto:jguntho...@obsidianresearch.com]
> Sent: Monday, October 10, 2016 02:08
> To: Jarkko Sakkinen
> Cc: moderated list:TPM DEVICE DRIVER ;
> open list
> Subject: Re: [tpmdd-devel] [PATCH RFC 1/3] tpm_crb: expand struct
> crb_control_area
> Encapsulated crb_wait_for_reg32() so that state changes in other CRB registers
> than TPM_CRB_CTRL_REQ_x can be waited.
>
> Signed-off-by: Jarkko Sakkinen
> ---
> drivers/char/tpm/tpm_crb.c | 40 +++-
> 1 file changed, 23 insertions(+), 17 deletions(-)
>
>
>
>
> On 10/09/2016 11:58 AM, Winkler, Tomas wrote:
> >> Like TPM 1.2, the current device driver for TPM 2.0 supports
> >> extending only to the SHA1 PCR bank. But the TPM 2.0 supports
> >> multiple PCR banks and the specification recommends extending to a
>
> On Mon, Oct 17, 2016 at 11:42:24PM +0300, Jarkko Sakkinen wrote:
> > Because all the existing hardware have HID MSFT0101 we end up always
> > setting CRB_FL_CRB_START flag as a workaround for 4th Gen Core CPUs.
> > Even if ACPI start is used, the driver will always issue also CRB start.
Do
> On Tue, Oct 18, 2016 at 08:49:45PM -0400, Nayna Jain wrote:
> > This patch removes the unnecessary error messages on failing to
> > allocate memory and replaces pr_err/printk with dev_dbg/dev_info as
> > applicable.
> >
> > Suggested-by: Jason Gunthorpe
> > Signed-off-by: Nayna Jain
>
> Review
>
> If the TPM we're connecting to uses a static burst count, it will report a
> burst
> count of zero throughout the response read. However, get_burstcount assumes
> that a response of zero indicates that the TPM is not ready to receive more
> data. In this case, it returns a negative error code
>
> This is no longer necessary, all calls to tpm_chip_unregister happen in
> remove() callbacks.
>
> Signed-off-by: Jason Gunthorpe
> ---
> drivers/char/tpm/tpm-chip.c | 5 -
> drivers/char/tpm/tpm.h | 1 -
> 2 files changed, 6 deletions(-)
>
> diff --git a/drivers/char/tpm/tpm-chip
>
> On Fri, Oct 28, 2016 at 05:37:45PM +0300, Jarkko Sakkinen wrote:
>
> > > I think this patch from Jarkko's next is the fix:
> > >
> > > http://git.infradead.org/users/jjs/linux-tpmdd.git/commit/65da72b7dd
> > > cdd8990e4783d09c7e86d90ccb4121
> > >
> > > Jarkko? Can you hurry that along to go i
>
> On Mon, Oct 31, 2016 at 08:16:59PM +, Winkler, Tomas wrote:
> > >
> > > On Fri, Oct 28, 2016 at 05:37:45PM +0300, Jarkko Sakkinen wrote:
> > >
> > > > > I think this patch from Jarkko's next is the fix:
> > > > >
.org
> Subject: Re: [PATCH 2/2] tpm/tpm2-chip: fix kdoc errors
>
> On Tue, Nov 01, 2016 at 03:05:14AM +0200, Tomas Winkler wrote:
> > Use correct kdoc format, describe correct parameters and return values.
> >
> > Signed-off-by: Tomas Winkler
> > ---
> > drivers/char/tpm/tpm2-cmd.c | 107
> > +++
>
> On Wed, Nov 16, 2016 at 07:03:38PM +0200, Tomas Winkler wrote:
> > Functions tpm_transmit and transmit_cmd are referenced from other
> > functions kdoc hence deserve documentation.
> >
> > Signed-off-by: Tomas Winkler
>
> Do you know how to make "make htmldocs" to generate documentation for
> On Wed, Nov 23, 2016 at 01:04:54PM +0200, Tomas Winkler wrote:
> > Use get_unaligned_be32 as b32_to_cpu doesn't work correctly on all
> > platforms for unaligned access.
> >
> > The fix doesn't cover all the cases as also some cast structures have
> > members on unaligned addresses.
>
> I think
> > ---
> > drivers/char/tpm/tpm_crb.c | 96
> > ++
> > 1 file changed, 64 insertions(+), 32 deletions(-)
> >
> > diff --git a/drivers/char/tpm/tpm_crb.c b/drivers/char/tpm/tpm_crb.c
> > index 717b6b4..8d81b66 100644
> > --- a/drivers/char/tpm/tpm_crb.c
>
> On Mon, Dec 05, 2016 at 12:07:51PM +, Winkler, Tomas wrote:
> > > > ---
> > > > drivers/char/tpm/tpm_crb.c | 96
> > > > ++
> > > > 1 file changed, 64 insertions(+), 32 deletions(-)
&
> CC linux-security-module
>
> On Sat, Dec 03, 2016 at 07:52:12PM +0200, Jarkko Sakkinen wrote:
> > Encapsulated crb_wait_for_reg32() so that state changes in other CRB
> > registers than TPM_CRB_CTRL_REQ_x can be waited.
> >
> > Signed-off-by: Jarkko Sakkinen
> > ---
> > drivers/char/tpm/tpm_cr
>
> CC linux-security-module
>
> On Sat, Dec 03, 2016 at 07:52:13PM +0200, Jarkko Sakkinen wrote:
> > Request and relinquish locality for the driver use in order to be a
> > better citizen in a multi locality environment like TXT. The locality
> > is requested and relinquished as part of going in
> -Original Message-
> From: Nayna [mailto:na...@linux.vnet.ibm.com]
> Sent: Tuesday, December 06, 2016 11:17
> To: Jarkko Sakkinen ; Winkler, Tomas
>
> Cc: tpmdd-devel@lists.sourceforge.net; linux-ker...@vger.kernel.org
> Subject: Re: [tpmdd-devel] [PATCH v2 1
>
> In order to provide access to locality registers, this commits adds mapping of
> the head of the CRB registers, which are located right before the control
> area.
>
> Signed-off-by: Jarkko Sakkinen
> ---
> drivers/char/tpm/tpm_crb.c | 89 +
> -
>
>
> I've tested is completley disjoint from the region pointed by the ACPI device
> tree (SSDT in PTT's case).
>
> Here's example device from my x250:
>
> Device (TPM)
> {
> Name (_HID, "MSFT0101" /* TPM 2.0 Security Device */) // _HID: Hardware ID
> Name (_STR, Unicode ("TPM 2.0 Device")) //
> > On Mon, Dec 12, 2016 at 02:25:32PM +, Winkler, Tomas wrote:
> > > >
> > > > In order to provide access to locality registers, this commits
> > > > adds mapping of the head of the CRB registers, which are located right
> before the contro
This is a BIOS issue + kernel ACPI platform driver refusing to handle
overlapping memory space. The issue here is that the ACPI platform driver is
not created, however this should not prevent the tpm_crb driver from working
as it registers directly the ACPI device. For now you can suppress the
g for that via intel support page so we can follow up
on that.
Thanks
Tomas
From: Davide Guerri [mailto:davide.gue...@gmail.com]
Sent: Friday, February 17, 2017 23:15
To: Jason Gunthorpe
Cc: Sakkinen, Jarkko ; Winkler, Tomas
; tpmdd-devel@lists.sourceforge.net
Subject: Re: [tpmdd-devel] Intel NU
>
> On Mon, Mar 06, 2017 at 01:53:35AM +0200, Tomas Winkler wrote:
> > This fix enables a platform to enter the idle state (suspend-to-idle)
> >
> > The driver needs to request explicitly go_idle upon completion from
> > the pm suspend handler.
> > The runtime pm is disabled on suspend during pre
>
> When CONFIG_PM_SLEEP is disabled, we get a warning about unused
> functions:
>
> drivers/char/tpm/tpm_crb.c:551:12: error: 'crb_pm_resume' defined but not
> used [-Werror=unused-function]
> drivers/char/tpm/tpm_crb.c:540:12: error: 'crb_pm_suspend' defined but not
> used [-Werror=unused-funct
> On Mon, Mar 20, 2017 at 1:11 PM, Winkler, Tomas
> wrote:
> >>
> >> When CONFIG_PM_SLEEP is disabled, we get a warning about unused
> >> functions:
> >>
> >> drivers/char/tpm/tpm_crb.c:551:12: error: 'crb_pm_resume' defined but
>
> On Mon, Mar 20, 2017 at 11:01:36PM +, Winkler, Tomas wrote:
>
> > I believe that in this case the #ifdefs can be done correctly quite
> > easily, but now I'm not against your solution as well, just maybe put
> > some of this info to the commit message
> On Thu, Mar 16, 2017 at 09:51:33PM -0400, Jérémy Lefaure wrote:
> > When PM_SLEEP is disabled crb_pm_suspend and crb_pm_resume are not
> > used by SET_SYSTEM_SLEEP_PM_OPS even if PM is enabled:
> >
> > drvers/char/tpm/tpm_crb.c:540:12: warning: ‘crb_pm_suspend’ defined
> > but not used [-Wunused-
>
> On Tue, Mar 21, 2017 at 10:05:36PM +, Winkler, Tomas wrote:
> > > On Thu, Mar 16, 2017 at 09:51:33PM -0400, Jérémy Lefaure wrote:
> > > > When PM_SLEEP is disabled crb_pm_suspend and crb_pm_resume are
> not
> > > > used by SET
> -Original Message-
> From: Jarkko Sakkinen [mailto:jarkko.sakki...@linux.intel.com]
> Sent: Monday, February 20, 2017 12:48
> To: Jason Gunthorpe
> Cc: Sakkinen, Jarkko ; tpmdd-
> de...@lists.sourceforge.net; davide.gue...@gmail.com
> Subject: Re: [tpmdd-devel] Intel NUC and fTPM issue
> The TPM class has some common shutdown code that must be executed for
> all drivers. This adds some needed functionality for that
The issue with this is, that on some platforms the only storage can be eMMC and
TPM is using it,. It has to be ensured that the storage device won't go down
befor
>
> On Sat, May 13, 2017 at 12:43:11PM +, Winkler, Tomas wrote:
> > > The TPM class has some common shutdown code that must be executed
> > > for all drivers. This adds some needed functionality for that
> >
> > The issue with this is, that on some platfo
> -Original Message-
> From: Jason Gunthorpe [mailto:jguntho...@obsidianresearch.com]
> Sent: Monday, May 15, 2017 20:46
> To: Josh Zimmerman
> Cc: Greg Kroah-Hartman ; linux-
> ker...@vger.kernel.org; Winkler, Tomas ; Jarkko
> Sakkinen ; tpmdd-
> de...@lists.s
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