#
  # PCI configuration
  #

  
  source "drivers/pci/pcie/Kconfig"

  config PCI_BUS_ADDR_T_64BIT

  	def_bool y if (ARCH_DMA_ADDR_T_64BIT || 64BIT)

  	depends on PCI

  config PCI_MSI
  	bool "Message Signaled Interrupts (MSI and MSI-X)"
  	depends on PCI

  	select GENERIC_MSI_IRQ

  	help
  	   This allows device drivers to enable MSI (Message Signaled
  	   Interrupts).  Message Signaled Interrupts enable a device to
  	   generate an interrupt using an inbound Memory Write on its
  	   PCI bus instead of asserting a device IRQ pin.

  	   Use of PCI MSI interrupts can be disabled at kernel boot time
  	   by using the 'pci=nomsi' option.  This disables MSI for the
  	   entire system.

  	   If you don't know what to do here, say Y.

  config PCI_MSI_IRQ_DOMAIN

  	def_bool ARC || ARM || ARM64 || X86

  	depends on PCI_MSI
  	select GENERIC_MSI_IRQ_DOMAIN

  config PCI_DEBUG
  	bool "PCI Debugging"
  	depends on PCI && DEBUG_KERNEL
  	help
  	  Say Y here if you want the PCI core to produce a bunch of debug
  	  messages to the system log.  Select this if you are having a
  	  problem with PCI support and want to see more of what is going on.
  
  	  When in doubt, say N.

  config PCI_REALLOC_ENABLE_AUTO
  	bool "Enable PCI resource re-allocation detection"
  	depends on PCI
  	help
  	  Say Y here if you want the PCI core to detect if PCI resource
  	  re-allocation needs to be enabled. You can always use pci=realloc=on
            or pci=realloc=off to override it.  Note this feature is a no-op
            unless PCI_IOV support is also enabled; in that case it will
            automatically re-allocate PCI resources if SR-IOV BARs have not
            been allocated by the BIOS.
  
  	  When in doubt, say N.

  config PCI_STUB
  	tristate "PCI Stub driver"
  	depends on PCI
  	help
  	  Say Y or M here if you want be able to reserve a PCI device
  	  when it is going to be assigned to a guest operating system.
  
  	  When in doubt, say N.

  config XEN_PCIDEV_FRONTEND
          tristate "Xen PCI Frontend"
          depends on PCI && X86 && XEN

          select PCI_XEN

  	select XEN_XENBUS_FRONTEND

          default y
          help
            The PCI device frontend driver allows the kernel to import arbitrary
            PCI devices from a PCI backend to support PCI driver domains.

  config HT_IRQ
  	bool "Interrupts on hypertransport devices"
  	default y

  	depends on PCI && X86_LOCAL_APIC

  	help
  	   This allows native hypertransport devices to use interrupts.
  
  	   If unsure say Y.

  config PCI_ATS
  	bool

  config PCI_ECAM
  	bool

  config PCI_LOCKLESS_CONFIG
  	bool

  config PCI_IOV
  	bool "PCI IOV support"
  	depends on PCI

  	select PCI_ATS

  	help
  	  I/O Virtualization is a PCI feature supported by some devices
  	  which allows them to create virtual devices which share their
  	  physical resources.
  
  	  If unsure, say N.

  config PCI_PRI
  	bool "PCI PRI support"

  	depends on PCI

  	select PCI_ATS
  	help
  	  PRI is the PCI Page Request Interface. It allows PCI devices that are
  	  behind an IOMMU to recover from page faults.
  
  	  If unsure, say N.

  config PCI_PASID
  	bool "PCI PASID support"
  	depends on PCI
  	select PCI_ATS
  	help
  	  Process Address Space Identifiers (PASIDs) can be used by PCI devices
  	  to access more than one IO address space at the same time. To make
  	  use of this feature an IOMMU is required which also supports PASIDs.
  	  Select this option if you have such an IOMMU and want to compile the
  	  driver for it into your kernel.
  
  	  If unsure, say N.

  config PCI_LABEL
  	def_bool y if (DMI || ACPI)
  	select NLS

  config PCI_HYPERV
          tristate "Hyper-V PCI Frontend"
          depends on PCI && X86 && HYPERV && PCI_MSI && PCI_MSI_IRQ_DOMAIN && X86_64
          help
            The PCI device frontend driver allows the kernel to import arbitrary
            PCI devices from a PCI backend to support PCI driver domains.

  source "drivers/pci/hotplug/Kconfig"

  source "drivers/pci/dwc/Kconfig"

  source "drivers/pci/host/Kconfig"

  source "drivers/pci/endpoint/Kconfig"

  source "drivers/pci/switch/Kconfig"