tjh.dev
Linux kernel mirror (for testing)
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kernel
os
linux
1#
2# PCI configuration
3#
4config ARCH_SUPPORTS_MSI
5 bool
6 default n
7
8config PCI_MSI
9 bool "Message Signaled Interrupts (MSI and MSI-X)"
10 depends on PCI
11 depends on ARCH_SUPPORTS_MSI
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
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
22 If you don't know what to do here, say N.
23
24config PCI_LEGACY
25 bool "Enable deprecated pci_find_* API"
26 depends on PCI
27 default y
28 help
29 Say Y here if you want to include support for the deprecated
30 pci_find_device() API. Most drivers have been converted over
31 to using the proper hotplug APIs, so this option serves to
32 include/exclude only a few drivers that are still using this
33 API.
34
35config PCI_DEBUG
36 bool "PCI Debugging"
37 depends on PCI && DEBUG_KERNEL
38 help
39 Say Y here if you want the PCI core to produce a bunch of debug
40 messages to the system log. Select this if you are having a
41 problem with PCI support and want to see more of what is going on.
42
43 When in doubt, say N.
44
45config PCI_STUB
46 tristate "PCI Stub driver"
47 depends on PCI
48 help
49 Say Y or M here if you want be able to reserve a PCI device
50 when it is going to be assigned to a guest operating system.
51
52 When in doubt, say N.
53
54config HT_IRQ
55 bool "Interrupts on hypertransport devices"
56 default y
57 depends on PCI && X86_LOCAL_APIC && X86_IO_APIC
58 help
59 This allows native hypertransport devices to use interrupts.
60
61 If unsure say Y.
62
63config PCI_IOV
64 bool "PCI IOV support"
65 depends on PCI
66 help
67 I/O Virtualization is a PCI feature supported by some devices
68 which allows them to create virtual devices which share their
69 physical resources.
70
71 If unsure, say N.
72
73config PCI_IOAPIC
74 bool
75 depends on PCI
76 depends on ACPI
77 depends on HOTPLUG
78 default y