linux/drivers/char/tpm
James Bottomley 55707d531a tpm_tis: Add a check for invalid status
Some TIS based TPMs can return 0xff to status reads if the locality
hasn't been properly requested.  Detect this condition by checking the
bits that the TIS spec specifies must return zero are clear and return
zero in that case.  Also drop a warning so the problem can be
identified in the calling path and fixed (usually a missing
try_get_ops()).

Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
Reviewed-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
Signed-off-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
2020-10-02 00:21:03 +03:00
..
eventlog tpm: Add support for event log pointer found in TPM2 ACPI table 2020-07-24 09:29:21 +03:00
st33zp24 tpm/st33zp24: fix spelling mistake "drescription" -> "description" 2020-07-02 17:49:00 +03:00
Kconfig tpm: tis: add support for MMIO TPM on SynQuacer 2020-10-02 00:21:02 +03:00
Makefile tpm: tis: add support for MMIO TPM on SynQuacer 2020-10-02 00:21:02 +03:00
tpm-chip.c tpm: Unify the mismatching TPM space buffer sizes 2020-07-24 09:26:23 +03:00
tpm-dev-common.c tpm: Fix TIS locality timeout problems 2020-07-02 17:48:59 +03:00
tpm-dev.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 441 2019-06-05 17:37:17 +02:00
tpm-dev.h tpm: Handle negative priv->response_len in tpm_common_read() 2020-01-08 18:11:09 +02:00
tpm-interface.c tpm: fix wrong return value in tpm_pcr_extend 2020-04-21 00:06:13 +03:00
tpm-sysfs.c tpm: use %*ph to print small buffer 2020-10-02 00:21:03 +03:00
tpm.h tpm: Unify the mismatching TPM space buffer sizes 2020-07-24 09:26:23 +03:00
tpm1-cmd.c tpm: provide a way to override the chip returned durations 2019-11-12 21:45:36 +02:00
tpm2-cmd.c tpm: Export tpm2_get_cc_attrs_tbl for ibmvtpm driver as module 2020-04-21 00:06:13 +03:00
tpm2-space.c tpm: Unify the mismatching TPM space buffer sizes 2020-07-24 09:26:23 +03:00
tpm_atmel.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 441 2019-06-05 17:37:17 +02:00
tpm_atmel.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 441 2019-06-05 17:37:17 +02:00
tpm_crb.c tpm_crb: fix fTPM on AMD Zen+ CPUs 2019-11-12 21:45:37 +02:00
tpm_ftpm_tee.c Enable multi-stage OP-TEE bus enumeration 2020-07-13 15:11:44 +02:00
tpm_ftpm_tee.h tpm/tpm_ftpm_tee: A driver for firmware TPM running inside TEE 2019-09-02 17:08:35 +03:00
tpm_i2c_atmel.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 13 2019-05-21 11:28:45 +02:00
tpm_i2c_infineon.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 441 2019-06-05 17:37:17 +02:00
tpm_i2c_nuvoton.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 13 2019-05-21 11:28:45 +02:00
tpm_ibmvtpm.c tpm: ibmvtpm: Wait for ready buffer before probing for TPM2 attributes 2020-07-02 17:49:00 +03:00
tpm_ibmvtpm.h tpm: ibmvtpm: Wait for buffer to be set before proceeding 2020-03-15 20:12:52 +02:00
tpm_infineon.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 441 2019-06-05 17:37:17 +02:00
tpm_nsc.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 441 2019-06-05 17:37:17 +02:00
tpm_ppi.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 441 2019-06-05 17:37:17 +02:00
tpm_tis.c Revert commit e918e57041 ("tpm_tis: Remove the HID IFX0102") 2020-07-07 04:25:17 +03:00
tpm_tis_core.c tpm_tis: Add a check for invalid status 2020-10-02 00:21:03 +03:00
tpm_tis_core.h tpm_tis: Add a check for invalid status 2020-10-02 00:21:03 +03:00
tpm_tis_spi.h tpm: tpm_tis_spi: Support cr50 devices 2019-11-12 21:45:37 +02:00
tpm_tis_spi_cr50.c tpm: tpm_tis_spi_cr50: use new structure for SPI transfer delays 2020-03-13 03:53:16 +02:00
tpm_tis_spi_main.c tpm_tis_spi: Prefer async probe 2020-07-02 17:49:00 +03:00
tpm_tis_synquacer.c tpm: tis: add support for MMIO TPM on SynQuacer 2020-10-02 00:21:02 +03:00
tpm_vtpm_proxy.c compat_ioctl: move drivers to compat_ptr_ioctl 2019-10-23 17:23:43 +02:00
tpmrm-dev.c tpm: Unify the mismatching TPM space buffer sizes 2020-07-24 09:26:23 +03:00
xen-tpmfront.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00