4 config ARCH_SUPPORTS_MSI
9 bool "Message Signaled Interrupts (MSI and MSI-X)"
11 depends on ARCH_SUPPORTS_MSI
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.
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
22 If you don't know what to do here, say Y.
26 depends on PCI && DEBUG_KERNEL
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.
35 tristate "PCI Stub driver"
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.
43 config XEN_PCIDEV_FRONTEND
44 tristate "Xen PCI Frontend"
45 depends on PCI && X86 && XEN
50 The PCI device frontend driver allows the kernel to import arbitrary
51 PCI devices from a PCI backend to support PCI driver domains.
53 config XEN_PCIDEV_FE_DEBUG
54 bool "Xen PCI Frontend debugging"
55 depends on XEN_PCIDEV_FRONTEND && PCI_DEBUG
57 Say Y here if you want the Xen PCI frontend to produce a bunch of debug
58 messages to the system log. Select this if you are having a
59 problem with Xen PCI frontend support and want to see more of what is
65 bool "Interrupts on hypertransport devices"
67 depends on PCI && X86_LOCAL_APIC && X86_IO_APIC
69 This allows native hypertransport devices to use interrupts.
74 bool "PCI IOV support"
77 I/O Virtualization is a PCI feature supported by some devices
78 which allows them to create virtual devices which share their