[Qemu-devel] [PATCH V4 0/3] hw/pcie: Introduce Generic PCI Express Root Port

[Marcel Apfelbaum <marcel@redhat.com>]

v3 -> v4:
  - Rebased on master.

v2 -> v3:
 - Keep only the root port base class code in pcie_root_port.c (Michael)
 - Use msix for the generic root port implementation (Michael and Gerd)
   - The task required some refactoring like having some common
     init/uninit interrupts functions to be implemented by both
     generic and Intel Root Ports.

v1 -> v2:
 - Rebased on master.

The Generic Root Port behaves the same as the
Intel's IOH device with id 3420, without having
Intel specific attributes.

The device has two purposes:
 (1) Can be used on both X86 and ARM machines.
 (2) It will allow us to tweak the behaviour
    (e.g add vendor-specific PCI capabilities)
     - something that obviously cannot be done
       on a known device.

Patch 1/3: Introduce a base class for Root Ports - most of the code
           is migrated from IOH3420 implementation.
Patch 2/3: Derives the IOH3420 from the new base class
Patch 3/3: Introduces the generic Root Port.

Tested with Linux and Windows guests only on x86 hosts.

Marcel Apfelbaum (3):
  hw/pcie: Introduce a base class for PCI Express Root Ports
  hw/ioh3420: derive from PCI Express Root Port base class
  hw/pcie: Introduce Generic PCI Express Root Port

 default-configs/arm-softmmu.mak    |   1 +
 default-configs/i386-softmmu.mak   |   1 +
 default-configs/x86_64-softmmu.mak |   1 +
 hw/pci-bridge/Makefile.objs        |   1 +
 hw/pci-bridge/gen_pcie_root_port.c |  88 +++++++++++++++++++
 hw/pci-bridge/ioh3420.c            | 121 ++++----------------------
 hw/pci-bridge/pcie_root_port.c     | 171 +++++++++++++++++++++++++++++++++++++
 include/hw/pci/pci.h               |   1 +
 include/hw/pci/pcie_port.h         |  19 +++++
 9 files changed, 298 insertions(+), 106 deletions(-)
 create mode 100644 hw/pci-bridge/gen_pcie_root_port.c
 create mode 100644 hw/pci-bridge/pcie_root_port.c

-- 
2.5.5