The following series of patches implements a multi-instance vTPM driver that can dynamically create TPM 'server' and client device pairs.
Using an ioctl on the provided /dev/vtpmx, a client-side vTPM device and a server side file descriptor is created. The file descriptor must be passed to a TPM emulator. The device driver will initialize the emulated TPM using TPM 1.2 or TPM 2 startup commands and it will read the command durations from the device in case of a TPM 1.2. The choice of emulated TPM device (1.2 or 2) must be provided with a flag in the ioctl. The driver is based on James Morris's 'next' branch and uses several recently posted patches from Jason and Jarkko. Stefan v5->v6: - Adapted errno's for unsupported flags and ioctls following Jason's comments v4->v5: - Introduced different error codes for unsupported flags and ioctls - Added documentation patch Jason Gunthorpe (4): tpm: Get rid of chip->pdev tpm: Get rid of devname tpm: Provide strong locking for device removal tpm: Split out the devm stuff from tpmm_chip_alloc Stefan Berger (7): tpm: Get rid of module locking tpm: Replace device number bitmap with IDR tpm: Introduce TPM_CHIP_FLAG_VIRTUAL tpm: Driver for supporting multiple emulated TPMs tpm: Initialize TPM and get durations and timeouts tpm: Add documentation for the tpm_vtpm device driver A test program for vTPM device creation Documentation/tpm/tpm_vtpm.txt | 54 +++ drivers/char/tpm/Kconfig | 10 + drivers/char/tpm/Makefile | 1 + drivers/char/tpm/tpm-chip.c | 221 +++++++++---- drivers/char/tpm/tpm-dev.c | 15 +- drivers/char/tpm/tpm-interface.c | 50 +-- drivers/char/tpm/tpm-sysfs.c | 22 +- drivers/char/tpm/tpm.h | 30 +- drivers/char/tpm/tpm2-cmd.c | 8 +- drivers/char/tpm/tpm_atmel.c | 14 +- drivers/char/tpm/tpm_eventlog.c | 2 +- drivers/char/tpm/tpm_eventlog.h | 2 +- drivers/char/tpm/tpm_i2c_atmel.c | 16 +- drivers/char/tpm/tpm_i2c_infineon.c | 6 +- drivers/char/tpm/tpm_i2c_nuvoton.c | 24 +- drivers/char/tpm/tpm_infineon.c | 22 +- drivers/char/tpm/tpm_nsc.c | 20 +- drivers/char/tpm/tpm_tis.c | 18 +- drivers/char/tpm/tpm_vtpm.c | 642 ++++++++++++++++++++++++++++++++++++ include/uapi/linux/Kbuild | 1 + include/uapi/linux/vtpm.h | 41 +++ vtpmctrl.c | 163 +++++++++ 22 files changed, 1203 insertions(+), 179 deletions(-) create mode 100644 Documentation/tpm/tpm_vtpm.txt create mode 100644 drivers/char/tpm/tpm_vtpm.c create mode 100644 include/uapi/linux/vtpm.h create mode 100644 vtpmctrl.c -- 2.4.3 ------------------------------------------------------------------------------ Transform Data into Opportunity. Accelerate data analysis in your applications with Intel Data Analytics Acceleration Library. Click to learn more. http://pubads.g.doubleclick.net/gampad/clk?id=278785111&iu=/4140 _______________________________________________ tpmdd-devel mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/tpmdd-devel
