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Re: [Qemu-devel] [PATCH v3 0/4] Add support for TPM Physical Presence in
From: |
Marc-André Lureau |
Subject: |
Re: [Qemu-devel] [PATCH v3 0/4] Add support for TPM Physical Presence interface |
Date: |
Wed, 20 Jun 2018 15:11:39 +0200 |
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
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