[Qemu-devel] [PATCH v3 0/4] Add support for TPM Physical Presence interface

[Marc-André Lureau]

Hi,

The following patches implement the TPM Physical Presence Interface
that allows a user to set a command via ACPI (sysfs entry in Linux)
that, upon the next reboot, the firmware looks for and acts upon by
sending sequences of commands to the TPM.

A dedicated memory region is added to the TPM CRB & TIS devices, at
address/size 0xFED45000/0x400. A new "etc/tpm/config" fw_cfg entry
holds the location for that PPI region and some version details, to
allow for future flexibility.

With the associated edk2/ovmf firmware, the Windows HLK "PPI 1.3" test
now runs successfully.

It is based on previous work from Stefan Berger ("[PATCH v2 0/4]
Implement Physical Presence interface for TPM 1.2 and 2")

Git branches:
https://github.com/elmarco/qemu tpm-ppi
https://github.com/elmarco/edk2 tpm-ppi

Marc-André Lureau (1):
  tpm: add a fake ACPI memory clear interface

Stefan Berger (3):
  tpm: implement virtual memory device for TPM PPI
  acpi: add fw_cfg file for TPM and PPI virtual memory device
  acpi: build TPM Physical Presence interface

 hw/tpm/tpm_ppi.h      |  26 ++++
 include/hw/acpi/tpm.h |  30 ++++
 hw/i386/acpi-build.c  | 318 ++++++++++++++++++++++++++++++++++++++++++
 hw/tpm/tpm_crb.c      |   5 +
 hw/tpm/tpm_ppi.c      |  56 ++++++++
 hw/tpm/tpm_tis.c      |   5 +
 docs/specs/tpm.txt    |  20 +++
 hw/tpm/Makefile.objs  |   2 +-
 hw/tpm/trace-events   |   4 +
 9 files changed, 465 insertions(+), 1 deletion(-)
 create mode 100644 hw/tpm/tpm_ppi.h
 create mode 100644 hw/tpm/tpm_ppi.c

-- 
2.17.0.253.g3dd125b46d