Re: [Qemu-devel] [PATCH 0/7] pci: Create PCI Express bus type

[Michael S. Tsirkin]

On Thu, Mar 14, 2013 at 04:00:53PM -0600, Alex Williamson wrote:
> When setting PCIe capabilities we need to know the type of bus we
> have.  On secondary buses we could poke around on the parent bridge
> device to infer this data, but on root buses there's no parent device.
> By creating a new PCIE TypeInfo we can inherit everything about PCI
> buses while still allowing us to differentiate and potentially extend
> in the future.
> 
> The first benefactor of this change is included here, mangling
> Endpoints to Root Complex Integrated Endpoints, allowing nec-usb-xhci
> to work on the root bus of q35 with Windows.  I also plan to use this
> to drop link capabilities, control, and status on all Integrated
> Endpoints and for PCIe capability modifications on assigned devices.
> Thanks,
> 
> Alex

Applied, thanks!

> ---
> 
> Alex Williamson (7):
>       pci: Create and register a new PCI Express TypeInfo
>       pci: Move PCI and PCIE type defines
>       pci: Allow PCI bus creation interfaces to specify the type of bus
>       pci: Q35, Root Ports, and Switches create PCI Express buses
>       pci: Create pci_bus_is_express helper
>       pci: Create and use API to determine root buses
>       pcie: Mangle types to match topology
> 
> 
>  hw/alpha_typhoon.c      |    2 +-
>  hw/apb_pci.c            |    4 ++--
>  hw/bonito.c             |    2 +-
>  hw/dec_pci.c            |    7 ++++++-
>  hw/grackle_pci.c        |    2 +-
>  hw/gt64xxx.c            |    2 +-
>  hw/i82801b11.c          |    2 +-
>  hw/ioh3420.c            |    2 +-
>  hw/pci/pci.c            |   36 ++++++++++++++++++++++++++----------
>  hw/pci/pci.h            |   13 ++++++++++---
>  hw/pci/pci_bridge.c     |    5 ++---
>  hw/pci/pci_bridge.h     |    2 +-
>  hw/pci/pci_bus.h        |    3 ---
>  hw/pci/pcie.c           |   13 +++++++++++++
>  hw/pci_bridge_dev.c     |    2 +-
>  hw/piix_pci.c           |    2 +-
>  hw/ppc4xx_pci.c         |    2 +-
>  hw/ppce500_pci.c        |    2 +-
>  hw/prep_pci.c           |    2 +-
>  hw/q35.c                |    3 ++-
>  hw/sh_pci.c             |    2 +-
>  hw/spapr_pci.c          |    2 +-
>  hw/unin_pci.c           |    4 ++--
>  hw/versatile_pci.c      |    2 +-
>  hw/xio3130_downstream.c |    2 +-
>  hw/xio3130_upstream.c   |    2 +-
>  26 files changed, 80 insertions(+), 42 deletions(-)