[Qemu-devel] [PATCH RFC v2 0/9] hw/pci: set irq without selecting INTx pin

[Marcel Apfelbaum <marcel.a@redhat.com>]

Note: Added RFC because not all affected devices were
      checked yet. 

Interrupt pin is selected and saved into PCI_INTERRUPT_PIN
register during device initialization. Devices should not call
directly qemu_set_irq and specify the INTx pin.

Added pci_* wrappers to replace qemu_set_irq, qemu_irq_raise,
qemu_irq_lower and qemu_irq_pulse, setting the irq
based on PCI_INTERRUPT_PIN.

Added interface to allocate and free single irq.
Added pci_allocate_irq wrapper to be used by devices that
still need PCIDevice infrastructure to assert irqs.

Removed irq field from PCIDevice, not needed anymore.

Special cases of replacements were done in separate patches,
all others in one patch "hw: set interrupts using pci irq wrappers"

Changes from v1:
 - Addressed Michael S. Tsirkin's comments:
   - pci_set_irq directly calls pci_irq handler
   - removed irq field from PCIDevice
 - Added qemu interface to allocate single irq
 - Added pci wrappers to allocate and free pci irq
 - Added pci irq wrappers for all qemu methods
   setting irq and not only qemu_set_irq 
 - Replace all qemu irq setters with pci
   wrappers

Marcel Apfelbaum (9):
  hw/core: Add interface to allocate and free a single IRQ
  hw/pci: add pci wrappers for allocating and asserting irqs
  hw/pci-bridge: set PCI_INTERRUPT_PIN register before shpc init
  hw/vmxnet3: set interrupts using pci irq wrappers
  hw/vfio: set interrupts using pci irq wrappers
  hw/xhci: set interrupts using pci irq wrappers
  hw: set interrupts using pci irq wrappers
  hw/pcie: AER and hot-plug events must use device's interrupt
  hw/pci: removed irq field from PCIDevice

 hw/audio/ac97.c                |  4 ++--
 hw/audio/es1370.c              |  4 ++--
 hw/audio/intel-hda.c           |  2 +-
 hw/block/nvme.c                |  2 +-
 hw/char/serial-pci.c           |  5 +++--
 hw/char/tpci200.c              |  8 ++++----
 hw/core/irq.c                  | 16 ++++++++++++++++
 hw/display/qxl.c               |  2 +-
 hw/ide/cmd646.c                |  2 +-
 hw/ide/ich.c                   |  3 ++-
 hw/isa/vt82c686.c              |  2 +-
 hw/misc/ivshmem.c              |  2 +-
 hw/misc/vfio.c                 | 11 ++++++-----
 hw/net/e1000.c                 |  2 +-
 hw/net/eepro100.c              |  4 ++--
 hw/net/ne2000.c                |  3 ++-
 hw/net/pcnet-pci.c             |  3 ++-
 hw/net/rtl8139.c               |  2 +-
 hw/net/vmxnet3.c               | 13 +++++++++++--
 hw/pci-bridge/pci_bridge_dev.c |  2 +-
 hw/pci/pci.c                   | 26 +++++++++++++++++++++-----
 hw/pci/pcie.c                  |  4 ++--
 hw/pci/pcie_aer.c              |  4 ++--
 hw/pci/shpc.c                  |  2 +-
 hw/scsi/esp-pci.c              |  3 ++-
 hw/scsi/lsi53c895a.c           |  2 +-
 hw/scsi/megasas.c              |  6 +++---
 hw/scsi/vmw_pvscsi.c           |  2 +-
 hw/usb/hcd-ehci-pci.c          |  2 +-
 hw/usb/hcd-ohci.c              |  2 +-
 hw/usb/hcd-uhci.c              |  2 +-
 hw/usb/hcd-xhci.c              |  7 ++-----
 hw/virtio/virtio-pci.c         |  4 ++--
 include/hw/irq.h               |  7 +++++++
 include/hw/pci/pci.h           | 22 +++++++++++++++++++---
 include/hw/pci/pcie.h          | 18 ------------------
 36 files changed, 127 insertions(+), 78 deletions(-)

-- 
1.8.3.1