[Qemu-devel] [RFC PATCH 0/8] Add Generic PCI host device update

[Alvise Rigo]

This patch series is based on the previous work [1] and [2] by Rob
Herring and it tries to enhance this work on these points:

- Some of the hardcoded values have been moved to an header file.  This
  header file is also used to share some device structures with the
  mach-virt machine.
- The interrupt-map dt node generation has been revisited; it is now
  done after the generic devices init so that it's possible to attach
  PCI devices by mean of the qdev infrastructure. This allows to have
  several devices in the PCI bus, with the current limitation of one
  interrupt per PCI slot.

Probably the most objectionable part of these patches regards the way
some data and definitions have been shared between the machine and the
device code; a better solution is still under evaluation. Any advice on
this and on the rest of the work is highly appreciated.

This work has been tested attaching several PCI devices to the mach-virt
platform.  The tested devices are: virtio-blk-pci, virtio-net-pci,
lsi53c895a and pci-ohci (all attached at the same time).
Even if the original work was not changed in its core functionalities, I
couldn't reproduce the malfunctioning of the LSI SCSI mentioned in [1].
After attaching several qcow2 images, formatting and filling them, I
didn't notice anything wrong. Am I missing something?

Thank you,
alvise

[1]
"[Qemu-devel] [RFC PATCH 1/2] hw/pci-host: add a generic PCI host"
http://lists.gnu.org/archive/html/qemu-devel/2014-06/msg03482.html
[2]
"[Qemu-devel] [RFC PATCH 2/2] hw/arm/virt: Add generic PCI host device"
http://lists.gnu.org/archive/html/qemu-devel/2014-06/msg03483.html

Alvise Rigo (8):
  mach-virt: move GIC inside mach-virt structure
  mach-virt: improve PCI memory topology definition
  QEMUMachine: finalize_dt function
  generic_pci: create header file
  generic_pci: create own map irq function
  generic_pci: generate dt node after devices init
  generic_pci: realize device with machine data
  generic_pci: add interrupt map structures

 hw/arm/virt.c                     | 110 +++++++++++++++---------
 hw/pci-host/generic-pci.c         | 173 +++++++++++++++++++++++++++++---------
 include/hw/boards.h               |   4 +
 include/hw/pci-host/pci_generic.h |  66 +++++++++++++++
 vl.c                              |   5 ++
 5 files changed, 277 insertions(+), 81 deletions(-)
 create mode 100644 include/hw/pci-host/pci_generic.h

-- 
1.9.1