The following series of patches adds vTPM emulator support for the
ppc64 platform (pSeries). 

It can be tested as follows with swtpm/libtpms:

#> swtpm socket --tpmstate dir=/tmp/mytpm1 \
	--ctrl type=unixio,path=/tmp/mytpm1/ctrl.sock \
	--log level=2

If TPM 2 is desired, add --tpm2 as parameter to the above
and use the latest tpm2-preview branches of libtpms and swtpm.

In another terminal start QEMU:

#> sudo ./ppc64-softmmu/qemu-system-ppc64 -m 1024 \
	-monitor stdio -vnc :12 -vga std \
	--chardev socket,id=chrtpm,path=/tmp/mytpm1/ctrl.sock \
	-tpmdev emulator,id=tpm0,chardev=chrtpm \
	-device tpm-spapr,tpmdev=tpm0 \
	-L /tmp -bios boot_rom.bin \
	myimage.raw

Links:
 - libtpms: https://github.com/stefanberger/libtpms/wiki
 - swtpm: https://github.com/stefanberger/swtpm/wiki

Changes:
 v1->v2:
  - followed Cedric Le Goater's suggestions to patch 1
  - send appropriate CRQ error responses if DMA read or write fails
  - renamed tpm_spapr_got_payload to tpm_spapr_process_cmd and
    pass endianess-adjusted data pointer from CRQ to it

Regards,
    Stefan


Stefan Berger (2):
  tpm_spapr: Support TPM for ppc64 using CRQ based interface
  tpm_spapr: Support suspend and resume

 hw/tpm/Makefile.objs |   1 +
 hw/tpm/tpm_spapr.c   | 435 +++++++++++++++++++++++++++++++++++++++++++++++++++
 include/sysemu/tpm.h |   3 +
 qapi/tpm.json        |   5 +-
 4 files changed, 442 insertions(+), 2 deletions(-)
 create mode 100644 hw/tpm/tpm_spapr.c

-- 
2.5.5