OpenCloudOS-Kernel/drivers/char/tpm/Kconfig

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# SPDX-License-Identifier: GPL-2.0-only
#
# TPM device configuration
#
menuconfig TCG_TPM
tristate "TPM Hardware Support"
depends on HAS_IOMEM
imply SECURITYFS
select CRYPTO
select CRYPTO_HASH_INFO
---help---
If you have a TPM security chip in your system, which
implements the Trusted Computing Group's specification,
say Yes and it will be accessible from within Linux. For
more information see <http://www.trustedcomputinggroup.org>.
An implementation of the Trusted Software Stack (TSS), the
userspace enablement piece of the specification, can be
obtained at: <http://sourceforge.net/projects/trousers>. To
compile this driver as a module, choose M here; the module
will be called tpm. If unsure, say N.
Notes:
1) For more TPM drivers enable CONFIG_PNP, CONFIG_ACPI
and CONFIG_PNPACPI.
2) Without ACPI enabled, the BIOS event log won't be accessible,
which is required to validate the PCR 0-7 values.
if TCG_TPM
config HW_RANDOM_TPM
bool "TPM HW Random Number Generator support"
depends on TCG_TPM && HW_RANDOM && !(TCG_TPM=y && HW_RANDOM=m)
default y
---help---
This setting exposes the TPM's Random Number Generator as a hwrng
device. This allows the kernel to collect randomness from the TPM at
boot, and provides the TPM randomines in /dev/hwrng.
If unsure, say Y.
config TCG_TIS_CORE
tristate
---help---
TCG TIS TPM core driver. It implements the TPM TCG TIS logic and hooks
into the TPM kernel APIs. Physical layers will register against it.
config TCG_TIS
tristate "TPM Interface Specification 1.2 Interface / TPM 2.0 FIFO Interface"
depends on X86 || OF
select TCG_TIS_CORE
---help---
If you have a TPM security chip that is compliant with the
TCG TIS 1.2 TPM specification (TPM1.2) or the TCG PTP FIFO
specification (TPM2.0) say Yes and it will be accessible from
within Linux. To compile this driver as a module, choose M here;
the module will be called tpm_tis.
config TCG_TIS_SPI
tristate "TPM Interface Specification 1.3 Interface / TPM 2.0 FIFO Interface - (SPI)"
depends on SPI
select TCG_TIS_CORE
---help---
If you have a TPM security chip which is connected to a regular,
non-tcg SPI master (i.e. most embedded platforms) that is compliant with the
TCG TIS 1.3 TPM specification (TPM1.2) or the TCG PTP FIFO
specification (TPM2.0) say Yes and it will be accessible from
within Linux. To compile this driver as a module, choose M here;
the module will be called tpm_tis_spi.
tpm: tpm_tis_spi: Support cr50 devices Add TPM2.0 PTP FIFO compatible SPI interface for chips with Cr50 firmware. The firmware running on the currently supported H1 Secure Microcontroller requires a special driver to handle its specifics: - need to ensure a certain delay between SPI transactions, or else the chip may miss some part of the next transaction - if there is no SPI activity for some time, it may go to sleep, and needs to be waken up before sending further commands - access to vendor-specific registers Cr50 firmware has a requirement to wait for the TPM to wakeup before sending commands over the SPI bus. Otherwise, the firmware could be in deep sleep and not respond. The method to wait for the device to wakeup is slightly different than the usual flow control mechanism described in the TCG SPI spec. Add a completion to tpm_tis_spi_transfer() before we start a SPI transfer so we can keep track of the last time the TPM driver accessed the SPI bus to support the flow control mechanism. Split the cr50 logic off into a different file to keep it out of the normal code flow of the existing SPI driver while making it all part of the same module when the code is optionally compiled into the same module. Export a new function, tpm_tis_spi_init(), and the associated read/write/transfer APIs so that we can do this. Make the cr50 code wrap the tpm_tis_spi_phy struct with its own struct to override the behavior of tpm_tis_spi_transfer() by supplying a custom flow control hook. This shares the most code between the core driver and the cr50 support without combining everything into the core driver or exporting module symbols. Signed-off-by: Andrey Pronin <apronin@chromium.org> Cc: Andrey Pronin <apronin@chromium.org> Cc: Duncan Laurie <dlaurie@chromium.org> Cc: Jason Gunthorpe <jgg@ziepe.ca> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: Guenter Roeck <groeck@chromium.org> Cc: Alexander Steffen <Alexander.Steffen@infineon.com> Cc: Heiko Stuebner <heiko@sntech.de> [swboyd@chromium.org: Replace boilerplate with SPDX tag, drop suspended bit and remove ifdef checks in cr50.h, migrate to functions exported in tpm_tis_spi.h, combine into one module instead of two] Signed-off-by: Stephen Boyd <swboyd@chromium.org> Tested-by: Heiko Stuebner <heiko@sntech.de> Reviewed-by: Heiko Stuebner <heiko@sntech.de> Reviewed-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com> Signed-off-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
2019-09-21 02:32:38 +08:00
config TCG_TIS_SPI_CR50
bool "Cr50 SPI Interface"
depends on TCG_TIS_SPI
help
If you have a H1 secure module running Cr50 firmware on SPI bus,
say Yes and it will be accessible from within Linux.
config TCG_TIS_I2C_ATMEL
tristate "TPM Interface Specification 1.2 Interface (I2C - Atmel)"
depends on I2C
---help---
If you have an Atmel I2C TPM security chip say Yes and it will be
accessible from within Linux.
To compile this driver as a module, choose M here; the module will
be called tpm_tis_i2c_atmel.
char/tpm: Add new driver for Infineon I2C TIS TPM This patch adds a driver to support Infineon's SLB 9635 TT 1.2 Soft I2C TPMs which follow the TGC TIS 1.2 TPM specification[1] and Infineon's I2C Protocol Stack Specification 0.20. The I2C Protocol Stack Specification is a simple adaption of the LPC TIS Protocol to the I2C Bus. The I2C TPMs can be used when LPC Bus is not available (i.e. non x86 architectures like ARM). The driver is based on the tpm_tis.c driver by Leendert van Dorn and Kyleen Hall and has quite similar functionality. Tested on Nvidia ARM Tegra2 Development Platform and Beagleboard (ARM OMAP) Tested with the Trousers[2] TSS API Testsuite v 0.3 [3] Compile-tested on x86 (32/64-bit) Updates since version 2.1.4: - included "Lock the I2C adapter for a sequence of requests", by Bryan Freed - use __i2c_transfer instead of own implementation of unlocked i2c_transfer - use struct dev_pm_ops for power management via SIMPLE_DEV_PM_OPS Updates since version 2.1.3: - use proper probing mechanism * either add the tpm using I2C_BOARD_INFO to your board file or probe it * during runtime e.g on BeagleBoard using : * "echo tpm_i2c_infineon 0x20 > /sys/bus/i2c/devices/i2c-2/new_device" - fix possible endless loop if hardware misbehaves - improved return codes - consistent spelling i2c/tpm -> I2C/TPM - remove hardcoded sleep values and msleep usage - removed debug statements - added check for I2C functionality - renaming to tpm_i2c_infineon Updates since version 2.1.2: - added sysfs entries for duration and timeouts - updated to new tpm_do_selftest Updates since version 2.1.0: - improved error handling - implemented workarounds needed by the tpm - fixed typos References: [1] http://www.trustedcomputinggroup.org/resources/pc_client_work_group_pc_client_ specific_tpm_interface_specification_tis_version_12/ [2] http://trousers.sourceforge.net/ [3] http://sourceforge.net/projects/trousers/files/TSS%20API%20test%20suite/0.3/ Reviewed-by: Andi Shyti <andi.shyti@gmail.com> Acked-by: Marcel Selhorst <tpmdd@selhorst.net> Signed-off-by: Peter Huewe <peter.huewe@infineon.com> Signed-off-by: Bryan Freed <bfreed@chromium.org> Signed-off-by: Kent Yoder <key@linux.vnet.ibm.com>
2012-08-07 17:42:32 +08:00
config TCG_TIS_I2C_INFINEON
tristate "TPM Interface Specification 1.2 Interface (I2C - Infineon)"
depends on I2C
---help---
If you have a TPM security chip that is compliant with the
TCG TIS 1.2 TPM specification and Infineon's I2C Protocol Stack
Specification 0.20 say Yes and it will be accessible from within
Linux.
To compile this driver as a module, choose M here; the module
will be called tpm_i2c_infineon.
char/tpm: Add new driver for Infineon I2C TIS TPM This patch adds a driver to support Infineon's SLB 9635 TT 1.2 Soft I2C TPMs which follow the TGC TIS 1.2 TPM specification[1] and Infineon's I2C Protocol Stack Specification 0.20. The I2C Protocol Stack Specification is a simple adaption of the LPC TIS Protocol to the I2C Bus. The I2C TPMs can be used when LPC Bus is not available (i.e. non x86 architectures like ARM). The driver is based on the tpm_tis.c driver by Leendert van Dorn and Kyleen Hall and has quite similar functionality. Tested on Nvidia ARM Tegra2 Development Platform and Beagleboard (ARM OMAP) Tested with the Trousers[2] TSS API Testsuite v 0.3 [3] Compile-tested on x86 (32/64-bit) Updates since version 2.1.4: - included "Lock the I2C adapter for a sequence of requests", by Bryan Freed - use __i2c_transfer instead of own implementation of unlocked i2c_transfer - use struct dev_pm_ops for power management via SIMPLE_DEV_PM_OPS Updates since version 2.1.3: - use proper probing mechanism * either add the tpm using I2C_BOARD_INFO to your board file or probe it * during runtime e.g on BeagleBoard using : * "echo tpm_i2c_infineon 0x20 > /sys/bus/i2c/devices/i2c-2/new_device" - fix possible endless loop if hardware misbehaves - improved return codes - consistent spelling i2c/tpm -> I2C/TPM - remove hardcoded sleep values and msleep usage - removed debug statements - added check for I2C functionality - renaming to tpm_i2c_infineon Updates since version 2.1.2: - added sysfs entries for duration and timeouts - updated to new tpm_do_selftest Updates since version 2.1.0: - improved error handling - implemented workarounds needed by the tpm - fixed typos References: [1] http://www.trustedcomputinggroup.org/resources/pc_client_work_group_pc_client_ specific_tpm_interface_specification_tis_version_12/ [2] http://trousers.sourceforge.net/ [3] http://sourceforge.net/projects/trousers/files/TSS%20API%20test%20suite/0.3/ Reviewed-by: Andi Shyti <andi.shyti@gmail.com> Acked-by: Marcel Selhorst <tpmdd@selhorst.net> Signed-off-by: Peter Huewe <peter.huewe@infineon.com> Signed-off-by: Bryan Freed <bfreed@chromium.org> Signed-off-by: Kent Yoder <key@linux.vnet.ibm.com>
2012-08-07 17:42:32 +08:00
config TCG_TIS_I2C_NUVOTON
tristate "TPM Interface Specification 1.2 Interface (I2C - Nuvoton)"
depends on I2C
---help---
If you have a TPM security chip with an I2C interface from
Nuvoton Technology Corp. say Yes and it will be accessible
from within Linux.
To compile this driver as a module, choose M here; the module
will be called tpm_i2c_nuvoton.
config TCG_NSC
tristate "National Semiconductor TPM Interface"
depends on X86
---help---
If you have a TPM security chip from National Semiconductor
say Yes and it will be accessible from within Linux. To
compile this driver as a module, choose M here; the module
will be called tpm_nsc.
config TCG_ATMEL
tristate "Atmel TPM Interface"
depends on PPC64 || HAS_IOPORT_MAP
---help---
If you have a TPM security chip from Atmel say Yes and it
will be accessible from within Linux. To compile this driver
as a module, choose M here; the module will be called tpm_atmel.
config TCG_INFINEON
tristate "Infineon Technologies TPM Interface"
depends on PNP
---help---
If you have a TPM security chip from Infineon Technologies
(either SLD 9630 TT 1.1 or SLB 9635 TT 1.2) say Yes and it
will be accessible from within Linux.
To compile this driver as a module, choose M here; the module
will be called tpm_infineon.
Further information on this driver and the supported hardware
can be found at http://www.trust.rub.de/projects/linux-device-driver-infineon-tpm/
config TCG_IBMVTPM
tristate "IBM VTPM Interface"
depends on PPC_PSERIES
---help---
If you have IBM virtual TPM (VTPM) support say Yes and it
will be accessible from within Linux. To compile this driver
as a module, choose M here; the module will be called tpm_ibmvtpm.
config TCG_XEN
tristate "XEN TPM Interface"
depends on TCG_TPM && XEN
select XEN_XENBUS_FRONTEND
---help---
If you want to make TPM support available to a Xen user domain,
say Yes and it will be accessible from within Linux. See
the manpages for xl, xl.conf, and docs/misc/vtpm.txt in
the Xen source repository for more details.
To compile this driver as a module, choose M here; the module
will be called xen-tpmfront.
config TCG_CRB
tristate "TPM 2.0 CRB Interface"
depends on ACPI
---help---
If you have a TPM security chip that is compliant with the
TCG CRB 2.0 TPM specification say Yes and it will be accessible
from within Linux. To compile this driver as a module, choose
M here; the module will be called tpm_crb.
config TCG_VTPM_PROXY
tristate "VTPM Proxy Interface"
depends on TCG_TPM
---help---
This driver proxies for an emulated TPM (vTPM) running in userspace.
A device /dev/vtpmx is provided that creates a device pair
/dev/vtpmX and a server-side file descriptor on which the vTPM
can receive commands.
config TCG_FTPM_TEE
tristate "TEE based fTPM Interface"
depends on TEE && OPTEE
help
This driver proxies for firmware TPM running in TEE.
source "drivers/char/tpm/st33zp24/Kconfig"
endif # TCG_TPM