| # |
| # 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 ARCH_SUPPORTS_MSI |
| 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 N. |
| |
| config PCI_LEGACY |
| bool "Enable deprecated pci_find_* API" |
| depends on PCI |
| default y |
| help |
| 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_INIT_IN_MONITOR |
| bool "PCI Initialized in bootrom" |
| depends on PCI |
| help |
| This flag indicates that the PCI bus was initialized in the bootrom |
| monitor, and that further hardware initialization should not be |
| performed. Examples are when u-boot's PCI functions are used to |
| pre-initialize hardware at bootup time. |
| |
| Note that bus scan should still be performed to configure the PCI |
| devices as required for the Linux system. |
| |
| 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_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. |
