1
2
3
4
5source "drivers/pci/pcie/Kconfig"
6
7config PCI_BUS_ADDR_T_64BIT
8 def_bool y if (ARCH_DMA_ADDR_T_64BIT || 64BIT)
9 depends on PCI
10
11config PCI_MSI
12 bool "Message Signaled Interrupts (MSI and MSI-X)"
13 depends on PCI
14 select GENERIC_MSI_IRQ
15 help
16 This allows device drivers to enable MSI (Message Signaled
17 Interrupts). Message Signaled Interrupts enable a device to
18 generate an interrupt using an inbound Memory Write on its
19 PCI bus instead of asserting a device IRQ pin.
20
21 Use of PCI MSI interrupts can be disabled at kernel boot time
22 by using the 'pci=nomsi' option. This disables MSI for the
23 entire system.
24
25 If you don't know what to do here, say Y.
26
27config PCI_MSI_IRQ_DOMAIN
28 def_bool ARC || ARM || ARM64 || X86
29 depends on PCI_MSI
30 select GENERIC_MSI_IRQ_DOMAIN
31
32config PCI_DEBUG
33 bool "PCI Debugging"
34 depends on PCI && DEBUG_KERNEL
35 help
36 Say Y here if you want the PCI core to produce a bunch of debug
37 messages to the system log. Select this if you are having a
38 problem with PCI support and want to see more of what is going on.
39
40 When in doubt, say N.
41
42config PCI_REALLOC_ENABLE_AUTO
43 bool "Enable PCI resource re-allocation detection"
44 depends on PCI
45 help
46 Say Y here if you want the PCI core to detect if PCI resource
47 re-allocation needs to be enabled. You can always use pci=realloc=on
48 or pci=realloc=off to override it. Note this feature is a no-op
49 unless PCI_IOV support is also enabled; in that case it will
50 automatically re-allocate PCI resources if SR-IOV BARs have not
51 been allocated by the BIOS.
52
53 When in doubt, say N.
54
55config PCI_STUB
56 tristate "PCI Stub driver"
57 depends on PCI
58 help
59 Say Y or M here if you want be able to reserve a PCI device
60 when it is going to be assigned to a guest operating system.
61
62 When in doubt, say N.
63
64config XEN_PCIDEV_FRONTEND
65 tristate "Xen PCI Frontend"
66 depends on PCI && X86 && XEN
67 select PCI_XEN
68 select XEN_XENBUS_FRONTEND
69 default y
70 help
71 The PCI device frontend driver allows the kernel to import arbitrary
72 PCI devices from a PCI backend to support PCI driver domains.
73
74config HT_IRQ
75 bool "Interrupts on hypertransport devices"
76 default y
77 depends on PCI && X86_LOCAL_APIC
78 help
79 This allows native hypertransport devices to use interrupts.
80
81 If unsure say Y.
82
83config PCI_ATS
84 bool
85
86config PCI_ECAM
87 bool
88
89config PCI_IOV
90 bool "PCI IOV support"
91 depends on PCI
92 select PCI_ATS
93 help
94 I/O Virtualization is a PCI feature supported by some devices
95 which allows them to create virtual devices which share their
96 physical resources.
97
98 If unsure, say N.
99
100config PCI_PRI
101 bool "PCI PRI support"
102 depends on PCI
103 select PCI_ATS
104 help
105 PRI is the PCI Page Request Interface. It allows PCI devices that are
106 behind an IOMMU to recover from page faults.
107
108 If unsure, say N.
109
110config PCI_PASID
111 bool "PCI PASID support"
112 depends on PCI
113 select PCI_ATS
114 help
115 Process Address Space Identifiers (PASIDs) can be used by PCI devices
116 to access more than one IO address space at the same time. To make
117 use of this feature an IOMMU is required which also supports PASIDs.
118 Select this option if you have such an IOMMU and want to compile the
119 driver for it into your kernel.
120
121 If unsure, say N.
122
123config PCI_LABEL
124 def_bool y if (DMI || ACPI)
125 select NLS
126
127config PCI_HYPERV
128 tristate "Hyper-V PCI Frontend"
129 depends on PCI && X86 && HYPERV && PCI_MSI && PCI_MSI_IRQ_DOMAIN && X86_64
130 help
131 The PCI device frontend driver allows the kernel to import arbitrary
132 PCI devices from a PCI backend to support PCI driver domains.
133
134source "drivers/pci/hotplug/Kconfig"
135source "drivers/pci/host/Kconfig"
136
