forked from luck/tmp_suning_uos_patched
956a9202cd
This is a port of the 2.6.18 Xen PCI front driver with fixes to make it build under 2.6.34 and later (for the full list of changes: git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen.git historic/xen-pcifront-0.1). It also includes the fixes to make it work properly. [v2: Updated Kconfig, removed crud, added Reviewed-by] [v3: Added 'static', fixed grant table leak, redid Kconfig] [v4: Added one more 'static' and removed comments] Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> Reviewed-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com> Reviewed-by: Jan Beulich <JBeulich@novell.com>
89 lines
2.3 KiB
Plaintext
89 lines
2.3 KiB
Plaintext
#
|
|
# PCI configuration
|
|
#
|
|
config ARCH_SUPPORTS_MSI
|
|
bool
|
|
default n
|
|
|
|
config PCI_MSI
|
|
bool "Message Signaled Interrupts (MSI and MSI-X)"
|
|
depends on PCI
|
|
depends on ARCH_SUPPORTS_MSI
|
|
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_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_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 XEN_PCIDEV_FRONTEND
|
|
tristate "Xen PCI Frontend"
|
|
depends on PCI && X86 && XEN
|
|
select HOTPLUG
|
|
select PCI_XEN
|
|
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 XEN_PCIDEV_FE_DEBUG
|
|
bool "Xen PCI Frontend debugging"
|
|
depends on XEN_PCIDEV_FRONTEND && PCI_DEBUG
|
|
help
|
|
Say Y here if you want the Xen PCI frontend to produce a bunch of debug
|
|
messages to the system log. Select this if you are having a
|
|
problem with Xen PCI frontend support and want to see more of what is
|
|
going on.
|
|
|
|
When in doubt, say N.
|
|
|
|
config HT_IRQ
|
|
bool "Interrupts on hypertransport devices"
|
|
default y
|
|
depends on PCI && X86_LOCAL_APIC && X86_IO_APIC
|
|
help
|
|
This allows native hypertransport devices to use interrupts.
|
|
|
|
If unsure say Y.
|
|
|
|
config PCI_IOV
|
|
bool "PCI IOV support"
|
|
depends on PCI
|
|
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_IOAPIC
|
|
bool
|
|
depends on PCI
|
|
depends on ACPI
|
|
depends on HOTPLUG
|
|
default y
|