linux_dsm_epyc7002/drivers/char/tpm
Stefan Berger d8d74ea3c0 tpm: ibmvtpm: Wait for buffer to be set before proceeding
Synchronize with the results from the CRQs before continuing with
the initialization. This avoids trying to send TPM commands while
the rtce buffer has not been allocated, yet.

This patch fixes an existing race condition that may occurr if the
hypervisor does not quickly respond to the VTPM_GET_RTCE_BUFFER_SIZE
request sent during initialization and therefore the ibmvtpm->rtce_buf
has not been allocated at the time the first TPM command is sent.

Fixes: 132f762947 ("drivers/char/tpm: Add new device driver to support IBM vTPM")
Signed-off-by: Stefan Berger <stefanb@linux.ibm.com>
Acked-by: Nayna Jain <nayna@linux.ibm.com>
Tested-by: Nayna Jain <nayna@linux.ibm.com>
Reviewed-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
Signed-off-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
2020-03-15 20:12:52 +02:00
..
eventlog tpm: of: Handle IBM,vtpm20 case when getting log parameters 2020-03-13 17:31:26 +02:00
st33zp24 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 399 2019-06-05 17:37:12 +02:00
Kconfig tpm: tpm_tis_spi: Support cr50 devices 2019-11-12 21:45:37 +02:00
Makefile tpm: Revert tpm_tis_spi_mod.ko to tpm_tis_spi.ko. 2020-02-17 20:46:34 +02:00
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: Initialize crypto_id of allocated_banks to HASH_ALGO__LAST 2020-02-17 20:47:06 +02:00
tpm2-space.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 441 2019-06-05 17:37:17 +02:00
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 tpm/tpm_ftpm_tee: add shutdown call back 2019-12-19 02:31:28 +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 buffer to be set before proceeding 2020-03-15 20:12:52 +02:00
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_core.c tpm: Revert "tpm_tis_core: Turn on the TPM before probing IRQ's" 2020-01-06 19:36:09 +02:00
tpm_tis_core.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 441 2019-06-05 17:37:17 +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: use new 'delay' structure for SPI transfer delays 2020-03-13 03:53:16 +02:00
tpm_tis_spi.h tpm: tpm_tis_spi: Support cr50 devices 2019-11-12 21:45:37 +02:00
tpm_tis.c tpm: Switch to platform_get_irq_optional() 2019-11-12 21:45:37 +02:00
tpm_vtpm_proxy.c compat_ioctl: move drivers to compat_ptr_ioctl 2019-10-23 17:23:43 +02:00
tpm-chip.c tpm: Don't make log failures fatal 2020-03-13 03:53:15 +02:00
tpm-dev-common.c tpm: Handle negative priv->response_len in tpm_common_read() 2020-01-08 18:11:09 +02:00
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 KEYS: trusted: Move TPM2 trusted keys code 2019-11-12 21:45:37 +02:00
tpm-sysfs.c tpm: Add tpm_version_major sysfs file 2020-01-22 10:46:51 +02:00
tpm.h tpm: Don't make log failures fatal 2020-03-13 03:53:15 +02:00
tpmrm-dev.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 505 2019-06-19 17:11:22 +02:00
xen-tpmfront.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00