| # | |
| # 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_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. |