[Qemu-devel] [PATCH v11 0/9] PC system flash support

[Jordan Justen <jordan.l.justen@intel.com>]

Enable flash emulation in a PC system using pflash_cfi01.

v11:
* Convert pc-sysfw to qdev
  - Add rom_only property
* Remove KVM flash support to remove the need for using
  bdrv_read during machine initialization.  KVM should
  now continue to use the same 'rom' initialization
  sequence that it uses today.

v10:
* Rebase to HEAD
* "decouple vmstate from memory API" as in c5705a7
* Break changes into smaller pieces

v9:
* Add pc-1.1
* pc-1.0 uses previous rom firmware init code path

v8:
* Cleanup two chunks of debug code (printf messages)
* Fix comment in pc.h (pcflash.c => pc_sysfw.c)

v7:
* Do not add system firmware to qemu roms
* If kvm is enabled, copy pflash drive contents into a
  read-only ram region, since kvm cannot currently execute
  code from a pflash device.
* Rename pcflash.c to pc_sysfw.c

v6:
* Rebase for memory API
* pflash_cfi01: Set error in status register when a write to
  erase is attempted in read-only mode.
* Add system firmware to qemu roms

v5:
* Enable pflash read-only mode
* Enable -drive with if=pflash to define system firmware image

v4:
* Rebase

v3:
* Fix code style issues
* Add additional comments

v2:
* Convert debug printf to DPRINTF

Jordan Justen (9):
  blockdev: allow read-only pflash devices
  pflash_cfi01/02: support read-only pflash devices
  vl: make find_default_machine externally visible
  hw/pc: move rom init to pc_sysfw.c
  hw/pc_sysfw: enable pc-sysfw as a qdev
  hw/pc_sysfw: support system flash memory with pflash
  hw/pc_piix: remove is_default for pc-0.15
  hw/pc_piix: add pc-1.1
  pc_piix/pc_sysfw: enable flash by default

 Makefile.target                    |    1 +
 blockdev.c                         |    3 +-
 default-configs/i386-softmmu.mak   |    1 +
 default-configs/x86_64-softmmu.mak |    1 +
 hw/boards.h                        |    1 +
 hw/pc.c                            |   56 +-------
 hw/pc.h                            |    3 +
 hw/pc_piix.c                       |   62 +++++++++-
 hw/pc_sysfw.c                      |  254 ++++++++++++++++++++++++++++++++++++
 hw/pflash_cfi01.c                  |   44 +++++--
 hw/pflash_cfi02.c                  |   83 +++++++------
 vl.c                               |    2 +-
 12 files changed, 403 insertions(+), 108 deletions(-)
 create mode 100644 hw/pc_sysfw.c