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

[Marc-André Lureau]

On Tue, May 15, 2018 at 2:14 PM, Marc-André Lureau
<address@hidden> wrote:
> 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

ping

>
>  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
>
>



-- 
Marc-André Lureau