diff options
Diffstat (limited to 'drivers/pci/Kconfig')
| -rw-r--r-- | drivers/pci/Kconfig | 112 |
1 files changed, 94 insertions, 18 deletions
diff --git a/drivers/pci/Kconfig b/drivers/pci/Kconfig index f187fd8aeed..893503fa178 100644 --- a/drivers/pci/Kconfig +++ b/drivers/pci/Kconfig @@ -4,31 +4,17 @@ config PCI_MSI bool "Message Signaled Interrupts (MSI and MSI-X)" depends on PCI - depends on (X86_LOCAL_APIC && X86_IO_APIC) || IA64 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. - If you don't know what to do here, say N. + 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. -config PCI_LEGACY_PROC - bool "Legacy /proc/pci interface" - depends on PCI - ---help--- - This feature enables a procfs file -- /proc/pci -- that provides a - summary of PCI devices in the system. - - This feature has been deprecated as of v2.5.53, in favor of using the - tool lspci(8). This feature may be removed at a future date. - - lspci can provide the same data, as well as much more. lspci is a part of - the pci-utils package, which should be installed by your distribution. - See <file:Documentation/Changes> for information on where to get the latest - version. - - When in doubt, say N. + If you don't know what to do here, say Y. config PCI_DEBUG bool "PCI Debugging" @@ -40,3 +26,93 @@ config PCI_DEBUG 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 && X86_IO_APIC + help + This allows native hypertransport devices to use interrupts. + + If unsure say Y. + +config PCI_ATS + 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_IOAPIC + bool "PCI IO-APIC hotplug support" if X86 + depends on PCI + depends on ACPI + depends on X86_IO_APIC + default !X86 + +config PCI_LABEL + def_bool y if (DMI || ACPI) + select NLS + +source "drivers/pci/host/Kconfig" |