linux_dsm_epyc7002/drivers/char/tpm
Roberto Sassu 0b6cf6b97b tpm: pass an array of tpm_extend_digest structures to tpm_pcr_extend()
Currently, tpm_pcr_extend() accepts as an input only a SHA1 digest.

This patch replaces the hash parameter of tpm_pcr_extend() with an array of
tpm_digest structures, so that the caller can provide a digest for each PCR
bank currently allocated in the TPM.

tpm_pcr_extend() will not extend banks for which no digest was provided,
as it happened before this patch, but instead it requires that callers
provide the full set of digests. Since the number of digests will always be
chip->nr_allocated_banks, the count parameter has been removed.

Due to the API change, ima_pcr_extend() and pcrlock() have been modified.
Since the number of allocated banks is not known in advance, the memory for
the digests must be dynamically allocated. To avoid performance degradation
and to avoid that a PCR extend is not done due to lack of memory, the array
of tpm_digest structures is allocated by the users of the TPM driver at
initialization time.

Signed-off-by: Roberto Sassu <roberto.sassu@huawei.com>
Reviewed-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
Tested-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
Tested-by: Mimi Zohar <zohar@linux.ibm.com> (on x86 for TPM 1.2 & PTT TPM 2.0)
Signed-off-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
2019-02-13 09:48:52 +02:00
..
eventlog tpm: add _head suffix to tcg_efi_specid_event and tcg_pcr_event2 2019-02-13 09:47:01 +02:00
st33zp24 tpm: Unify the send callback behaviour 2019-02-13 09:46:26 +02:00
Kconfig tpm: Make SECURITYFS a weak dependency 2018-10-05 13:47:33 +03:00
Makefile tpm: factor out tpm 1.x duration calculation to tpm1-cmd.c 2018-11-13 13:46:29 +02:00
tpm1-cmd.c tpm: retrieve digest size of unknown algorithms with PCR read 2019-02-13 09:48:51 +02:00
tpm2-cmd.c tpm: pass an array of tpm_extend_digest structures to tpm_pcr_extend() 2019-02-13 09:48:52 +02:00
tpm2-space.c tpm: remove @flags from tpm_transmit() 2019-02-13 09:48:46 +02:00
tpm_atmel.c tpm: Unify the send callback behaviour 2019-02-13 09:46:26 +02:00
tpm_atmel.h tpm: remove tpm_read_index and tpm_write_index from tpm.h 2017-02-03 22:03:14 +02:00
tpm_crb.c tpm/tpm_crb: Avoid unaligned reads in crb_recv() 2019-02-08 23:13:02 +02:00
tpm_i2c_atmel.c tpm: declare struct tpm_header 2019-02-13 09:47:37 +02:00
tpm_i2c_infineon.c tpm: Unify the send callback behaviour 2019-02-13 09:46:26 +02:00
tpm_i2c_nuvoton.c tpm: Unify the send callback behaviour 2019-02-13 09:46:26 +02:00
tpm_ibmvtpm.c tpm: Unify the send callback behaviour 2019-02-13 09:46:26 +02:00
tpm_ibmvtpm.h tpm_ibmvtpm: properly handle interrupted packet receptions 2015-12-20 15:27:12 +02:00
tpm_infineon.c tpm: Unify the send callback behaviour 2019-02-13 09:46:26 +02:00
tpm_nsc.c tpm: Unify the send callback behaviour 2019-02-13 09:46:26 +02:00
tpm_ppi.c ACPI: Switch to use generic guid_t in acpi_evaluate_dsm() 2017-06-07 12:20:49 +02:00
tpm_tis_core.c tpm: remove @flags from tpm_transmit() 2019-02-13 09:48:46 +02:00
tpm_tis_core.h tpm: Allow tpm_tis drivers to set hwrng quality. 2018-07-28 17:03:11 +03:00
tpm_tis_spi.c tpm_tis_spi: Pass the SPI IRQ down to the driver 2018-07-28 17:03:11 +03:00
tpm_tis.c tpm: remove unused variables 2018-01-08 12:58:54 +02:00
tpm_vtpm_proxy.c tpm: remove @flags from tpm_transmit() 2019-02-13 09:48:46 +02:00
tpm-chip.c tpm: dynamically allocate the allocated_banks array 2019-02-13 09:48:50 +02:00
tpm-dev-common.c tpm: remove @flags from tpm_transmit() 2019-02-13 09:48:46 +02:00
tpm-dev.c tpm: add support for nonblocking operation 2018-10-05 13:47:33 +03:00
tpm-dev.h tpm: add support for partial reads 2018-12-17 13:45:10 +02:00
tpm-interface.c tpm: pass an array of tpm_extend_digest structures to tpm_pcr_extend() 2019-02-13 09:48:52 +02:00
tpm-sysfs.c tpm: remove @flags from tpm_transmit() 2019-02-13 09:48:46 +02:00
tpm.h tpm: pass an array of tpm_extend_digest structures to tpm_pcr_extend() 2019-02-13 09:48:52 +02:00
tpmrm-dev.c tpm: add support for nonblocking operation 2018-10-05 13:47:33 +03:00
xen-tpmfront.c tpm: declare struct tpm_header 2019-02-13 09:47:37 +02:00