drivers/pci/Kconfig

   1 #
   2 # PCI configuration
   3 #
   4 config ARCH_SUPPORTS_MSI
   5         bool
   6         default n
   7
   8 config PCI_MSI
   9         bool "Message Signaled Interrupts (MSI and MSI-X)"
  10         depends on PCI
  11         depends on ARCH_SUPPORTS_MSI
  12         help
  13            This allows device drivers to enable MSI (Message Signaled
  14            Interrupts).  Message Signaled Interrupts enable a device to
  15            generate an interrupt using an inbound Memory Write on its
  16            PCI bus instead of asserting a device IRQ pin.
  17
  18            Use of PCI MSI interrupts can be disabled at kernel boot time
  19            by using the 'pci=nomsi' option.  This disables MSI for the
  20            entire system.
  21
  22            If you don't know what to do here, say Y.
  23
  24 config PCI_DEBUG
  25         bool "PCI Debugging"
  26         depends on PCI && DEBUG_KERNEL
  27         help
  28           Say Y here if you want the PCI core to produce a bunch of debug
  29           messages to the system log.  Select this if you are having a
  30           problem with PCI support and want to see more of what is going on.
  31
  32           When in doubt, say N.
  33
  34 config PCI_STUB
  35         tristate "PCI Stub driver"
  36         depends on PCI
  37         help
  38           Say Y or M here if you want be able to reserve a PCI device
  39           when it is going to be assigned to a guest operating system.
  40
  41           When in doubt, say N.
  42
  43 config XEN_PCIDEV_FRONTEND
  44         tristate "Xen PCI Frontend"
  45         depends on PCI && X86 && XEN
  46         select HOTPLUG
  47         select PCI_XEN
  48         select XEN_XENBUS_FRONTEND
  49         default y
  50         help
  51           The PCI device frontend driver allows the kernel to import arbitrary
  52           PCI devices from a PCI backend to support PCI driver domains.
  53
  54 config XEN_PCIDEV_FE_DEBUG
  55         bool "Xen PCI Frontend debugging"
  56         depends on XEN_PCIDEV_FRONTEND && PCI_DEBUG
  57         help
  58           Say Y here if you want the Xen PCI frontend to produce a bunch of debug
  59           messages to the system log.  Select this if you are having a
  60           problem with Xen PCI frontend support and want to see more of what is
  61           going on.
  62
  63           When in doubt, say N.
  64
  65 config HT_IRQ
  66         bool "Interrupts on hypertransport devices"
  67         default y
  68         depends on PCI && X86_LOCAL_APIC && X86_IO_APIC
  69         help
  70            This allows native hypertransport devices to use interrupts.
  71
  72            If unsure say Y.
  73
  74 config PCI_IOV
  75         bool "PCI IOV support"
  76         depends on PCI
  77         help
  78           I/O Virtualization is a PCI feature supported by some devices
  79           which allows them to create virtual devices which share their
  80           physical resources.
  81
  82           If unsure, say N.
  83
  84 config PCI_IOAPIC
  85         bool
  86         depends on PCI
  87         depends on ACPI
  88         depends on HOTPLUG
  89         default y