diff options
Diffstat (limited to 'drivers/pci/Kconfig')
| -rw-r--r-- | drivers/pci/Kconfig | 122 |
1 files changed, 122 insertions, 0 deletions
diff --git a/drivers/pci/Kconfig b/drivers/pci/Kconfig new file mode 100644 index 00000000..848bfb84 --- /dev/null +++ b/drivers/pci/Kconfig @@ -0,0 +1,122 @@ +# +# 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 Y. + +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_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 HOTPLUG + 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 + tristate "PCI IO-APIC hotplug support" if X86 + depends on PCI + depends on ACPI + depends on HOTPLUG + default !X86 + +config PCI_LABEL + def_bool y if (DMI || ACPI) + select NLS |