#
# PCI configuration
#
+config ARCH_SUPPORTS_MSI
+ bool
+ default n
+
config PCI_MSI
bool "Message Signaled Interrupts (MSI and MSI-X)"
depends on PCI
- depends on (X86_LOCAL_APIC && X86_IO_APIC) || IA64
+ depends on ARCH_SUPPORTS_MSI
help
This allows device drivers to enable MSI (Message Signaled
Interrupts). Message Signaled Interrupts enable a device to
If you don't know what to do here, say N.
-config PCI_MULTITHREAD_PROBE
- bool "PCI Multi-threaded probe (EXPERIMENTAL)"
- depends on PCI && EXPERIMENTAL
+config PCI_LEGACY
+ bool "Enable deprecated pci_find_* API"
+ depends on PCI
+ default y
help
- Say Y here if you want the PCI core to spawn a new thread for
- every PCI device that is probed. This can cause a huge
- speedup in boot times on multiprocessor machines, and even a
- smaller speedup on single processor machines.
-
- But it can also cause lots of bad things to happen. A number
- of PCI drivers can not properly handle running in this way,
- some will just not work properly at all, while others might
- decide to blow up power supplies with a huge load all at once,
- so use this option at your own risk.
-
- It is very unwise to use this option if you are not using a
- boot process that can handle devices being created in any
- order. A program that can create persistant block and network
- device names (like udev) is a good idea if you wish to use
- this option.
-
- Again, use this option at your own risk, you have been warned!
-
- When in doubt, say N.
+ Say Y here if you want to include support for the deprecated
+ pci_find_slot() and pci_find_device() APIs. Most drivers have
+ been converted over to using the proper hotplug APIs, so this
+ option serves to include/exclude only a few drivers that are
+ still using this API.
config PCI_DEBUG
bool "PCI Debugging"
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 HT_IRQ
+ bool "Interrupts on hypertransport devices"
+ default y
+ depends on PCI && X86_LOCAL_APIC && X86_IO_APIC
+ help
+ This allows native hypertransport devices to use interrupts.
+
+ If unsure say Y.
+
+config PCI_IOV
+ bool "PCI IOV support"
+ depends on PCI
+ 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.