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Re: [PATCH v3 00/12] tpm: Split hw/ vs backends/


From: Stefan Berger
Subject: Re: [PATCH v3 00/12] tpm: Split hw/ vs backends/
Date: Tue, 23 Jun 2020 07:29:21 -0400
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.4.1

On 6/23/20 5:39 AM, Paolo Bonzini wrote:
On 12/06/20 10:54, Philippe Mathieu-Daudé wrote:
Missing review: last patch
- #12 "tpm: Move backend code under the 'backends/' directory"

Hi,

Yesterday I started to review some vTPM patches and got very
confused by the files under hw/tpm/. In particular after
running:

   $ git grep TYPE_TPM_BACKEND
   backends/tpm.c:188:    .name = TYPE_TPM_BACKEND,
   hw/tpm/tpm_emulator.c:985:    .parent = TYPE_TPM_BACKEND,
   hw/tpm/tpm_passthrough.c:393:    .parent = TYPE_TPM_BACKEND,
   include/sysemu/tpm_backend.h:21:#define TYPE_TPM_BACKEND "tpm-backend"

As there is no particular reason to keep this mixed, clean it up.

Since v2:
- Resolved the FIXME in tpm_tis_common.c by making the
   TRACE_TPM_UTIL_SHOW_BUFFER check locally to tpm_util.c

Since v1:
- Amended docs/ changes
- Renamed Kconfig TPM_BACKEND variable
- Move backend files under backends/tpm/ (Marc-André & Stefan)
- Fix x86-64 build error (patchew)

Philippe Mathieu-Daudé (12):
   docs/specs/tpm: Correct header path name
   backends: Add TPM files into their own directory
   hw/tpm: Rename TPMDEV as TPM_BACKEND in Kconfig
   hw/tpm: Do not include 'qemu/osdep.h' in header
   hw/tpm: Include missing 'qemu/option.h' header
   hw/tpm: Move 'hw/acpi/tpm.h' inclusion from header to sources
   hw/tpm: Remove unnecessary 'tpm_int.h' header inclusion
   hw/tpm: Make TRACE_TPM_UTIL_SHOW_BUFFER check local to tpm_util.c
   hw/tpm: Move few declarations from 'tpm_util.h' to 'tpm_int.h'
   hw/tpm: Move DEFINE_PROP_TPMBE() macro to 'tmp_prop.h' local header
   hw/tpm: Make 'tpm_util.h' publicly accessible as "sysemu/tpm_util.h"
   tpm: Move backend code under the 'backends/' directory

  docs/specs/tpm.rst                     | 14 +++++------
  Makefile                               |  2 +-
  Makefile.objs                          |  1 +
  {hw => backends}/tpm/tpm_int.h         | 19 +++++++++++---
  {hw => backends}/tpm/tpm_ioctl.h       |  0
  hw/tpm/tpm_ppi.h                       |  1 -
  hw/tpm/tpm_prop.h                      | 31 +++++++++++++++++++++++
  hw/tpm/tpm_tis.h                       |  1 -
  {hw/tpm => include/sysemu}/tpm_util.h  | 19 +++-----------
  backends/{tpm.c => tpm/tpm_backend.c}  |  0
  {hw => backends}/tpm/tpm_emulator.c    |  2 +-
  {hw => backends}/tpm/tpm_passthrough.c |  2 +-
  {hw => backends}/tpm/tpm_util.c        |  5 +++-
  hw/tpm/tpm_crb.c                       |  4 +--
  hw/tpm/tpm_ppi.c                       |  1 +
  hw/tpm/tpm_spapr.c                     |  4 +--
  hw/tpm/tpm_tis_common.c                | 11 +++------
  hw/tpm/tpm_tis_isa.c                   |  3 ++-
  hw/tpm/tpm_tis_sysbus.c                |  3 ++-
  tests/qtest/tpm-emu.c                  |  2 +-
  MAINTAINERS                            |  2 +-
  backends/Kconfig                       |  1 +
  backends/Makefile.objs                 |  2 +-
  backends/tpm/Kconfig                   | 14 +++++++++++
  backends/tpm/Makefile.objs             |  4 +++
  backends/tpm/trace-events              | 33 +++++++++++++++++++++++++
  hw/tpm/Kconfig                         | 21 +++-------------
  hw/tpm/Makefile.objs                   |  3 ---
  hw/tpm/trace-events                    | 34 +-------------------------
  29 files changed, 136 insertions(+), 103 deletions(-)
  rename {hw => backends}/tpm/tpm_int.h (81%)
  rename {hw => backends}/tpm/tpm_ioctl.h (100%)
  create mode 100644 hw/tpm/tpm_prop.h
  rename {hw/tpm => include/sysemu}/tpm_util.h (80%)
  rename backends/{tpm.c => tpm/tpm_backend.c} (100%)
  rename {hw => backends}/tpm/tpm_emulator.c (99%)
  rename {hw => backends}/tpm/tpm_passthrough.c (99%)
  rename {hw => backends}/tpm/tpm_util.c (98%)
  create mode 100644 backends/Kconfig
  create mode 100644 backends/tpm/Kconfig
  create mode 100644 backends/tpm/Makefile.objs
  create mode 100644 backends/tpm/trace-events

Queued this one, actually.

I was going to send a PR today.


Paolo





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