[Qemu-arm] [PATCH v5 0/6] arm: add Cortex M0 CPU model and hex file loader

[Stefan Hajnoczi]

v5:
 * Implemented Phil's hex loader suggestions
 * Replaced Su Hang's test hex file with a simple memory test pattern,
   eliminating the need to distribute source [Phil]
v4:
 * Drop ARMv7MState to ARMMProfileState rename because it causes a lot of code
   churn and is incomplete.  Other parts of QEMU (like NVIC emulation) still
   refer to "v7m" although they apply to other architecture versions too.
   [Peter]
 * Use the generic loader device (-device loader,file=program.hex,cpu-num=1)
   instead of -kernel.  -kernel is a legacy command-line option that is kept as
   a convenience, but it's not as flexible or predictable as the generic loader
   device.  New image formats should be added to the generic loader device.
   [Peter]
 * Use hex/ASCII literals instead of decimal literals in hexloader-test.c.
   This makes the test case slightly easier to understand. [Philippe]
v3:
 * Rename ARMv7MState to ARMMProfileState so a single class can cater for
   ARMv6-M, ARMv7-M, and ARMv8-M [Peter]
 * Make bitbanding optional via a qdev property [Peter]
 * Add hex file loader patches to reduce dependencies in upcoming patch series
 * Implement rollback if hex file loader fails partway through [Peter]
 * Update hex file loader test case to use an ARMv7-M board since hex file
   loading is only done for ARM M Profile boards

This series contains the prerequistes for the "microbit" machine type that Joel
Stanley has written.  I have combined the Cortex M0 CPU model and hex loader
work into one series to reduce the dependencies in upcoming patch series from
Joel, Julia, and Steffen.

This patch series:
 * Makes bitbanding optional on ARMv7MState.
 * Adds a "cortex-m0" cpu type which can be used with ARMMProfileState.  This
   works thanks to Julia's Cortex M0 emulation patches, which are now all
   merged.
 * Adds Su Hang's Intel HEX file format loader so that micro:bit and other
   microcontroller firmware images can be run using -kernel.  The micro:bit
   development tools typically only emit .hex files and not ELFs.

Stefan Hajnoczi (4):
  hw/arm: make bitbanded IO optional on ARMv7-M
  target/arm: add "cortex-m0" CPU model
  loader: extract rom_free() function
  loader: add rom transaction API

Su Hang (2):
  loader: Implement .hex file loader
  Add QTest testcase for the Intel Hexadecimal

 MAINTAINERS                          |   6 +
 configure                            |   4 +
 tests/Makefile.include               |   2 +
 include/hw/arm/armv7m.h              |   2 +
 include/hw/loader.h                  |  31 +++
 hw/arm/armv7m.c                      |  37 ++--
 hw/arm/mps2.c                        |   1 +
 hw/arm/msf2-soc.c                    |   1 +
 hw/arm/stellaris.c                   |   1 +
 hw/arm/stm32f205_soc.c               |   1 +
 hw/core/generic-loader.c             |   4 +
 hw/core/loader.c                     | 302 ++++++++++++++++++++++++++-
 target/arm/cpu.c                     |  11 +
 tests/hexloader-test.c               |  41 ++++
 tests/hex-loader-check-data/test.hex |  18 ++
 15 files changed, 436 insertions(+), 26 deletions(-)
 create mode 100644 tests/hexloader-test.c
 create mode 100644 tests/hex-loader-check-data/test.hex

-- 
2.17.1