[RFC 0/2] vTPM for aarch64

[Eric Auger]

This series adds the capability to instantiate an MMIO TPM TIS
in ARM virt.

The series was tested with the swtpm/libtpms emulator.
Automatic guest LUKS volume unlocking (tpm2) was successful.
EDK2 support is under development [3]. Thanks to Ard
for supporting me when setting up the test environment.

Best Regards

Eric

Testing:

mkdir /tmp/tpm
swtpm socket \
--tpm2 \
-t -d \
--tpmstate dir=/tmp/tpm \
--ctrl type=unixio,path=/tmp/swtpm-sock

qemu command line must be augmented with the following options:

-chardev socket,id=chrtpm,path=/tmp/swtpm-sock \
-tpmdev emulator,id=tpm0,chardev=chrtpm \
-device tpm-tis,tpmdev=tpm0 \

References:
[1] libtpms: https://github.com/stefanberger/libtpms/wiki
[2] swtpm: https://github.com/stefanberger/swtpm/wiki
[3] [PATCH 0/4] ArmVirtPkg: implement measured boot for ArmVirtQemu

This series can be found at:
https://github.com/eauger/qemu/tree/v4.2.0-tpm-rfc

Eric Auger (2):
  tpm: Let the TPM TIS device be usable on ARM
  hw/arm/virt: vTPM support

 hw/arm/Kconfig      |  1 +
 hw/arm/sysbus-fdt.c | 36 ++++++++++++++++++++++++++++++++++++
 hw/arm/virt.c       |  7 +++++++
 hw/tpm/Kconfig      |  2 +-
 hw/tpm/tpm_tis.c    | 16 ++++++++++++++++
 5 files changed, 61 insertions(+), 1 deletion(-)

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2.20.1