Commit | Line | Data |
---|---|---|
1da177e4 LT |
1 | # |
2 | # PCI configuration | |
3 | # | |
f282b970 DW |
4 | config ARCH_SUPPORTS_MSI |
5 | bool | |
6 | default n | |
7 | ||
1da177e4 LT |
8 | config PCI_MSI |
9 | bool "Message Signaled Interrupts (MSI and MSI-X)" | |
10 | depends on PCI | |
f282b970 | 11 | depends on ARCH_SUPPORTS_MSI |
1da177e4 LT |
12 | help |
13 | This allows device drivers to enable MSI (Message Signaled | |
14 | Interrupts). Message Signaled Interrupts enable a device to | |
15 | generate an interrupt using an inbound Memory Write on its | |
16 | PCI bus instead of asserting a device IRQ pin. | |
17 | ||
309e57df MW |
18 | Use of PCI MSI interrupts can be disabled at kernel boot time |
19 | by using the 'pci=nomsi' option. This disables MSI for the | |
20 | entire system. | |
21 | ||
3196180a | 22 | If you don't know what to do here, say Y. |
1da177e4 | 23 | |
1da177e4 LT |
24 | config PCI_DEBUG |
25 | bool "PCI Debugging" | |
26 | depends on PCI && DEBUG_KERNEL | |
27 | help | |
28 | Say Y here if you want the PCI core to produce a bunch of debug | |
29 | messages to the system log. Select this if you are having a | |
30 | problem with PCI support and want to see more of what is going on. | |
31 | ||
32 | When in doubt, say N. | |
33 | ||
c70e0d9d CW |
34 | config PCI_STUB |
35 | tristate "PCI Stub driver" | |
36 | depends on PCI | |
37 | help | |
38 | Say Y or M here if you want be able to reserve a PCI device | |
39 | when it is going to be assigned to a guest operating system. | |
40 | ||
41 | When in doubt, say N. | |
42 | ||
956a9202 RW |
43 | config XEN_PCIDEV_FRONTEND |
44 | tristate "Xen PCI Frontend" | |
45 | depends on PCI && X86 && XEN | |
46 | select HOTPLUG | |
47 | select PCI_XEN | |
fce263c1 | 48 | select XEN_XENBUS_FRONTEND |
956a9202 RW |
49 | default y |
50 | help | |
51 | The PCI device frontend driver allows the kernel to import arbitrary | |
52 | PCI devices from a PCI backend to support PCI driver domains. | |
53 | ||
54 | config XEN_PCIDEV_FE_DEBUG | |
55 | bool "Xen PCI Frontend debugging" | |
56 | depends on XEN_PCIDEV_FRONTEND && PCI_DEBUG | |
57 | help | |
58 | Say Y here if you want the Xen PCI frontend to produce a bunch of debug | |
59 | messages to the system log. Select this if you are having a | |
60 | problem with Xen PCI frontend support and want to see more of what is | |
61 | going on. | |
62 | ||
63 | When in doubt, say N. | |
64 | ||
8b955b0d EB |
65 | config HT_IRQ |
66 | bool "Interrupts on hypertransport devices" | |
67 | default y | |
fbab41cc | 68 | depends on PCI && X86_LOCAL_APIC && X86_IO_APIC |
8b955b0d EB |
69 | help |
70 | This allows native hypertransport devices to use interrupts. | |
71 | ||
72 | If unsure say Y. | |
d1b054da | 73 | |
db3c33c6 JR |
74 | config PCI_ATS |
75 | bool | |
76 | ||
d1b054da YZ |
77 | config PCI_IOV |
78 | bool "PCI IOV support" | |
79 | depends on PCI | |
db3c33c6 | 80 | select PCI_ATS |
d1b054da YZ |
81 | help |
82 | I/O Virtualization is a PCI feature supported by some devices | |
83 | which allows them to create virtual devices which share their | |
84 | physical resources. | |
85 | ||
86 | If unsure, say N. | |
204d49a5 | 87 | |
c320b976 JR |
88 | config PCI_PRI |
89 | bool "PCI PRI support" | |
90 | select PCI_ATS | |
91 | help | |
92 | PRI is the PCI Page Request Interface. It allows PCI devices that are | |
93 | behind an IOMMU to recover from page faults. | |
94 | ||
95 | If unsure, say N. | |
96 | ||
204d49a5 BH |
97 | config PCI_IOAPIC |
98 | bool | |
99 | depends on PCI | |
100 | depends on ACPI | |
101 | depends on HOTPLUG | |
102 | default y | |
6058989b | 103 | |
8a226e00 RD |
104 | config PCI_LABEL |
105 | def_bool y if (DMI || ACPI) | |
106 | select NLS |