* [PATCH v7 00/17] Removed nested TPM operations
@ 2018-11-16 1:35 Jarkko Sakkinen
2018-11-16 1:39 ` Jarkko Sakkinen
0 siblings, 1 reply; 2+ messages in thread
From: Jarkko Sakkinen @ 2018-11-16 1:35 UTC (permalink / raw)
To: x86, platform-driver-x86, linux-sgx
Cc: dave.hansen, sean.j.christopherson, nhorman, npmccallum,
serge.ayoun, shay.katz-zamir, haitao.huang, andriy.shevchenko,
tglx, kai.svahn, mark.shanahan, luto, Jarkko Sakkinen
[was Detach TPM space code out of the tpm_transmit() flow but the scope
expanded a bit.]
Make the changes necessary to detach TPM space code and TPM activation
code out of the tpm_transmit() flow because of both of these can cause
nested tpm_transmit() calls. The nesteds calls make the whole flow hard
to maintain, and thus, it is better to just fix things now before this
turns into a bigger mess.
v7:
* Reorganize series so that more trivial and self-contained changes are
in the head.
v6:
* When tpm_validate_commmand() was moved to tpm2-space.c, the struct for
the TPM header was incorrectly declared as struct tpm_input_header.
* Fix return value in tpm_validate_command().
v5:
* Add the missing rev's from Stefan Berger.
v4:
* Return 0 from pcrs_show() when tpm1_pcr_read() fails.
* Fix error handling flow in tpm_try_transmit().
* Replace struct tpm_input_header and struct tpm_output_header with
struct tpm_header.
v3:
* Encapsulate power gating code to tpm_chip_start() and tpm_chip_stop().
* Move TPM power gating code and locking to tpm_try_get_ops() and
tpm_put_ops().
* Call power gating code directly in tpm_chip_register() and
tpm2_del_space().
v2:
* Print tpm2_commit_space() error inside tpm2_commit_space()
* Error code was not printed when recv() callback failed. It is
fixed in this version.
* Added a patch that removes @space from tpm_transmit().
* Fixed a regression in earlier series. Forgot to amend the change
from the staging area that renames NESTED to UNLOCKED in tpm2-space.c.
Jarkko Sakkinen (17):
tpm: use tpm_buf in tpm_transmit_cmd() as the IO parameter
tpm: fix invalid return value in pubek_show()
tpm: return 0 from pcrs_show() when tpm1_pcr_read() fails
tpm: print tpm2_commit_space() error inside tpm2_commit_space()
tpm: declare struct tpm_header
tpm: access command header through struct in tpm_try_transmit()
tpm: encapsulate tpm_dev_transmit()
tpm: call tpm2_flush_space() on error in tpm_try_transmit()
tpm: clean up tpm_try_transmit() error handling flow
tpm: move tpm_validate_commmand() to tpm2-space.c
tpm: move TPM space code out of tpm_transmit()
tpm: remove @space from tpm_transmit()
tpm: use tpm_try_get_ops() in tpm-sysfs.c.
tpm: remove TPM_TRANSMIT_UNLOCKED flag
tpm: introduce tpm_chip_start() and tpm_chip_stop()
tpm: take TPM chip power gating out of tpm_transmit()
tpm: remove @flags from tpm_transmit()
drivers/char/tpm/tpm-chip.c | 105 +++++++++++-
drivers/char/tpm/tpm-dev-common.c | 45 ++++-
drivers/char/tpm/tpm-interface.c | 267 ++++++------------------------
drivers/char/tpm/tpm-sysfs.c | 138 +++++++++------
drivers/char/tpm/tpm.h | 64 +++----
drivers/char/tpm/tpm1-cmd.c | 28 +---
drivers/char/tpm/tpm2-cmd.c | 72 +++-----
drivers/char/tpm/tpm2-space.c | 93 ++++++++---
drivers/char/tpm/tpm_i2c_atmel.c | 5 +-
drivers/char/tpm/tpm_vtpm_proxy.c | 12 +-
drivers/char/tpm/xen-tpmfront.c | 2 +-
11 files changed, 406 insertions(+), 425 deletions(-)
--
2.19.1
^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: [PATCH v7 00/17] Removed nested TPM operations
2018-11-16 1:35 [PATCH v7 00/17] Removed nested TPM operations Jarkko Sakkinen
@ 2018-11-16 1:39 ` Jarkko Sakkinen
0 siblings, 0 replies; 2+ messages in thread
From: Jarkko Sakkinen @ 2018-11-16 1:39 UTC (permalink / raw)
To: x86, platform-driver-x86, linux-sgx
Cc: dave.hansen, sean.j.christopherson, nhorman, npmccallum,
serge.ayoun, shay.katz-zamir, haitao.huang, andriy.shevchenko,
tglx, kai.svahn, mark.shanahan, luto
On Fri, Nov 16, 2018 at 03:35:27AM +0200, Jarkko Sakkinen wrote:
> [was Detach TPM space code out of the tpm_transmit() flow but the scope
> expanded a bit.]
>
> Make the changes necessary to detach TPM space code and TPM activation
> code out of the tpm_transmit() flow because of both of these can cause
> nested tpm_transmit() calls. The nesteds calls make the whole flow hard
> to maintain, and thus, it is better to just fix things now before this
> turns into a bigger mess.
>
> v7:
> * Reorganize series so that more trivial and self-contained changes are
> in the head.
>
> v6:
> * When tpm_validate_commmand() was moved to tpm2-space.c, the struct for
> the TPM header was incorrectly declared as struct tpm_input_header.
> * Fix return value in tpm_validate_command().
>
> v5:
> * Add the missing rev's from Stefan Berger.
>
> v4:
> * Return 0 from pcrs_show() when tpm1_pcr_read() fails.
> * Fix error handling flow in tpm_try_transmit().
> * Replace struct tpm_input_header and struct tpm_output_header with
> struct tpm_header.
>
> v3:
> * Encapsulate power gating code to tpm_chip_start() and tpm_chip_stop().
> * Move TPM power gating code and locking to tpm_try_get_ops() and
> tpm_put_ops().
> * Call power gating code directly in tpm_chip_register() and
> tpm2_del_space().
>
> v2:
> * Print tpm2_commit_space() error inside tpm2_commit_space()
> * Error code was not printed when recv() callback failed. It is
> fixed in this version.
> * Added a patch that removes @space from tpm_transmit().
> * Fixed a regression in earlier series. Forgot to amend the change
> from the staging area that renames NESTED to UNLOCKED in tpm2-space.c.
>
> Jarkko Sakkinen (17):
> tpm: use tpm_buf in tpm_transmit_cmd() as the IO parameter
> tpm: fix invalid return value in pubek_show()
> tpm: return 0 from pcrs_show() when tpm1_pcr_read() fails
> tpm: print tpm2_commit_space() error inside tpm2_commit_space()
> tpm: declare struct tpm_header
> tpm: access command header through struct in tpm_try_transmit()
> tpm: encapsulate tpm_dev_transmit()
> tpm: call tpm2_flush_space() on error in tpm_try_transmit()
> tpm: clean up tpm_try_transmit() error handling flow
> tpm: move tpm_validate_commmand() to tpm2-space.c
> tpm: move TPM space code out of tpm_transmit()
> tpm: remove @space from tpm_transmit()
> tpm: use tpm_try_get_ops() in tpm-sysfs.c.
> tpm: remove TPM_TRANSMIT_UNLOCKED flag
> tpm: introduce tpm_chip_start() and tpm_chip_stop()
> tpm: take TPM chip power gating out of tpm_transmit()
> tpm: remove @flags from tpm_transmit()
>
> drivers/char/tpm/tpm-chip.c | 105 +++++++++++-
> drivers/char/tpm/tpm-dev-common.c | 45 ++++-
> drivers/char/tpm/tpm-interface.c | 267 ++++++------------------------
> drivers/char/tpm/tpm-sysfs.c | 138 +++++++++------
> drivers/char/tpm/tpm.h | 64 +++----
> drivers/char/tpm/tpm1-cmd.c | 28 +---
> drivers/char/tpm/tpm2-cmd.c | 72 +++-----
> drivers/char/tpm/tpm2-space.c | 93 ++++++++---
> drivers/char/tpm/tpm_i2c_atmel.c | 5 +-
> drivers/char/tpm/tpm_vtpm_proxy.c | 12 +-
> drivers/char/tpm/xen-tpmfront.c | 2 +-
> 11 files changed, 406 insertions(+), 425 deletions(-)
>
> --
> 2.19.1
>
Oops, sorry. Please ignore.
/Jarkko
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