diff options
Diffstat (limited to 'drivers/pci/Kconfig')
| -rw-r--r-- | drivers/pci/Kconfig | 150 |
1 files changed, 150 insertions, 0 deletions
diff --git a/drivers/pci/Kconfig b/drivers/pci/Kconfig new file mode 100644 index 000000000..56ff8f6d3 --- /dev/null +++ b/drivers/pci/Kconfig @@ -0,0 +1,150 @@ +# SPDX-License-Identifier: GPL-2.0 +# +# PCI configuration +# + +source "drivers/pci/pcie/Kconfig" + +config PCI_MSI + bool "Message Signaled Interrupts (MSI and MSI-X)" + depends on PCI + select GENERIC_MSI_IRQ + 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_MSI_IRQ_DOMAIN + def_bool ARC || ARM || ARM64 || X86 + depends on PCI_MSI + select GENERIC_MSI_IRQ_DOMAIN + +config PCI_QUIRKS + default y + bool "Enable PCI quirk workarounds" if EXPERT + depends on PCI + help + This enables workarounds for various PCI chipset bugs/quirks. + Disable this only if your target machine is unaffected by PCI + quirks. + +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 + depends on PCI_IOV + 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. 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 PCI_PF_STUB + tristate "PCI PF Stub driver" + depends on PCI + depends on PCI_IOV + help + Say Y or M here if you want to enable support for devices that + require SR-IOV support, while at the same time the PF itself is + not providing any actual services on the host itself such as + storage or networking. + + 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 PCI_ATS + bool + +config PCI_ECAM + bool + +config PCI_LOCKLESS_CONFIG + 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_LABEL + def_bool y if (DMI || ACPI) + depends on PCI + select NLS + +config PCI_HYPERV + tristate "Hyper-V PCI Frontend" + depends on PCI && X86 && HYPERV && PCI_MSI && PCI_MSI_IRQ_DOMAIN && X86_64 + help + The PCI device frontend driver allows the kernel to import arbitrary + PCI devices from a PCI backend to support PCI driver domains. + +source "drivers/pci/hotplug/Kconfig" +source "drivers/pci/controller/Kconfig" +source "drivers/pci/endpoint/Kconfig" +source "drivers/pci/switch/Kconfig" |