Gentle request to review this patchset
> -----Original Message-----
> From: Valluri, Amarnath
> Sent: Tuesday, May 16, 2017 10:58 AM
> To: qemu-devel@nongnu.org
> Cc: Valluri, Amarnath <amarnath.valluri@intel.com>
> Subject: [Qemu-devel][PATCH v4 0/8] Provide support for the software TPM
> emulator
>
> Briefly, Theses set of patches introduces:
> - new TPM backend driver to support software TPM emulators(swtpm(1)).
> - and few supported fixes/enhancements/cleanup to existing tpm backend
> code.
>
> The similar idea was initiated earliar(2) by Stefan Berger(CCed) with slightly
> different approach, using CUSE. As swtpm has excellent support for unix
> domain
> sockets, hence this implementation uses unix domain sockets to
> communicate
> with
> swtpm.
>
> When Qemu is configured with 'emulator' tpm backend, it spawns 'swtpm'
> and
> communicates its via Unix domain sockets.
>
> 1) https://github.com/stefanberger/swtpm
> 2) https://lists.nongnu.org/archive/html/qemu-devel/2016-
> 01/msg00089.html
>
> ** Changes in V2:
> - Made spawnning swtpm optional
> - used QIOChannel instead of plain unix sockets
> - incorporated other fixes pointed in v1 review
>
> ** Changes in v3:
> - Addressed review comments made by Stefan Berger and Deniel P Berrange
>
> ** Changes in v4:
> - Moved realloc_buffer() to TIS model
> - Made TpmInfo related change backwards compatible.
>
> Amarnath Valluri (8):
> tpm-backend: Remove unneeded member variable from backend class
> tpm-backend: Move thread handling inside TPMBackend
> tpm-backend: Initialize and free data members in it's own methods
> tpm-backend: Made few interface methods optional
> tmp backend: Add new api to read backend TpmInfo
> tpm-backend: Move realloc_buffer() implementation to tpm-tis model
> tpm-passthrough: move reusable code to utils
> tpm: Added support for TPM emulator
>
> backends/tpm.c | 117 +++--
> configure | 15 +-
> hmp.c | 27 +-
> hw/tpm/Makefile.objs | 1 +
> hw/tpm/tpm_emulator.c | 950
> +++++++++++++++++++++++++++++++++++++++
> hw/tpm/tpm_ioctl.h | 243 ++++++++++
> hw/tpm/tpm_passthrough.c | 238 +++-------
> hw/tpm/tpm_tis.c | 14 +-
> hw/tpm/tpm_util.c | 25 ++
> hw/tpm/tpm_util.h | 4 +
> include/sysemu/tpm_backend.h | 96 ++--
> include/sysemu/tpm_backend_int.h | 41 --
> qapi-schema.json | 41 +-
> qemu-options.hx | 53 ++-
> tpm.c | 38 +-
> 15 files changed, 1545 insertions(+), 358 deletions(-) create mode 100644
> hw/tpm/tpm_emulator.c create mode 100644 hw/tpm/tpm_ioctl.h delete
> mode 100644 include/sysemu/tpm_backend_int.h
>
> --
> 2.7.4