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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
#
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# PCI configuration
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#
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config ARCH_SUPPORTS_MSI
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bool
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default n
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config PCI_MSI
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bool "Message Signaled Interrupts (MSI and MSI-X)"
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depends on PCI
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depends on ARCH_SUPPORTS_MSI
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help
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This allows device drivers to enable MSI (Message Signaled
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Interrupts). Message Signaled Interrupts enable a device to
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generate an interrupt using an inbound Memory Write on its
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PCI bus instead of asserting a device IRQ pin.
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Use of PCI MSI interrupts can be disabled at kernel boot time
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by using the 'pci=nomsi' option. This disables MSI for the
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entire system.
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If you don't know what to do here, say Y.
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config PCI_DEBUG
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bool "PCI Debugging"
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depends on PCI && DEBUG_KERNEL
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help
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Say Y here if you want the PCI core to produce a bunch of debug
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messages to the system log. Select this if you are having a
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problem with PCI support and want to see more of what is going on.
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When in doubt, say N.
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config PCI_STUB
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tristate "PCI Stub driver"
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depends on PCI
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help
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Say Y or M here if you want be able to reserve a PCI device
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when it is going to be assigned to a guest operating system.
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When in doubt, say N.
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config XEN_PCIDEV_FRONTEND
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tristate "Xen PCI Frontend"
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depends on PCI && X86 && XEN
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select HOTPLUG
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select PCI_XEN
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default y
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help
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The PCI device frontend driver allows the kernel to import arbitrary
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PCI devices from a PCI backend to support PCI driver domains.
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config XEN_PCIDEV_FE_DEBUG
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bool "Xen PCI Frontend debugging"
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depends on XEN_PCIDEV_FRONTEND && PCI_DEBUG
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help
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Say Y here if you want the Xen PCI frontend to produce a bunch of debug
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messages to the system log. Select this if you are having a
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problem with Xen PCI frontend support and want to see more of what is
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going on.
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When in doubt, say N.
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config HT_IRQ
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bool "Interrupts on hypertransport devices"
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default y
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depends on PCI && X86_LOCAL_APIC && X86_IO_APIC
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help
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This allows native hypertransport devices to use interrupts.
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If unsure say Y.
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config PCI_IOV
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bool "PCI IOV support"
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depends on PCI
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help
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I/O Virtualization is a PCI feature supported by some devices
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which allows them to create virtual devices which share their
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physical resources.
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If unsure, say N.
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config PCI_IOAPIC
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bool
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depends on PCI
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depends on ACPI
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depends on HOTPLUG
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default y
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