| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | # | 
 | 2 | # PCI configuration | 
 | 3 | # | 
| Dan Williams | f282b97 | 2007-04-18 18:46:20 +1000 | [diff] [blame] | 4 | config ARCH_SUPPORTS_MSI | 
 | 5 | 	bool | 
 | 6 | 	default n | 
 | 7 |  | 
| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 8 | config PCI_MSI | 
 | 9 | 	bool "Message Signaled Interrupts (MSI and MSI-X)" | 
 | 10 | 	depends on PCI | 
| Dan Williams | f282b97 | 2007-04-18 18:46:20 +1000 | [diff] [blame] | 11 | 	depends on ARCH_SUPPORTS_MSI | 
| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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 |  | 
| Matthew Wilcox | 309e57d | 2006-03-05 22:33:34 -0700 | [diff] [blame] | 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 |  | 
| Jesse Barnes | 3196180 | 2010-04-08 09:38:47 -0700 | [diff] [blame] | 22 | 	   If you don't know what to do here, say Y. | 
| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 23 |  | 
| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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 |  | 
| Yinghai Lu | b07f2eb | 2012-02-23 19:23:32 -0800 | [diff] [blame^] | 34 | config PCI_REALLOC_ENABLE_AUTO | 
 | 35 | 	bool "Enable PCI resource re-allocation detection" | 
 | 36 | 	depends on PCI | 
 | 37 | 	help | 
 | 38 | 	  Say Y here if you want the PCI core to detect if PCI resource | 
 | 39 | 	  re-allocation needs to be enabled. You can always use pci=realloc=on | 
 | 40 |           or pci=realloc=off to override it.  Note this feature is a no-op | 
 | 41 |           unless PCI_IOV support is also enabled; in that case it will | 
 | 42 |           automatically re-allocate PCI resources if SR-IOV BARs have not | 
 | 43 |           been allocated by the BIOS. | 
 | 44 |  | 
 | 45 | 	  When in doubt, say N. | 
 | 46 |  | 
| Chris Wright | c70e0d9 | 2008-11-25 21:17:13 -0800 | [diff] [blame] | 47 | config PCI_STUB | 
 | 48 | 	tristate "PCI Stub driver" | 
 | 49 | 	depends on PCI | 
 | 50 | 	help | 
 | 51 | 	  Say Y or M here if you want be able to reserve a PCI device | 
 | 52 | 	  when it is going to be assigned to a guest operating system. | 
 | 53 |  | 
 | 54 | 	  When in doubt, say N. | 
 | 55 |  | 
| Ryan Wilson | 956a920 | 2010-08-02 21:31:05 -0400 | [diff] [blame] | 56 | config XEN_PCIDEV_FRONTEND | 
 | 57 |         tristate "Xen PCI Frontend" | 
 | 58 |         depends on PCI && X86 && XEN | 
 | 59 |         select HOTPLUG | 
 | 60 |         select PCI_XEN | 
| Konrad Rzeszutek Wilk | fce263c | 2010-12-10 22:33:15 -0500 | [diff] [blame] | 61 | 	select XEN_XENBUS_FRONTEND | 
| Ryan Wilson | 956a920 | 2010-08-02 21:31:05 -0400 | [diff] [blame] | 62 |         default y | 
 | 63 |         help | 
 | 64 |           The PCI device frontend driver allows the kernel to import arbitrary | 
 | 65 |           PCI devices from a PCI backend to support PCI driver domains. | 
 | 66 |  | 
| Eric W. Biederman | 8b955b0 | 2006-10-04 02:16:55 -0700 | [diff] [blame] | 67 | config HT_IRQ | 
 | 68 | 	bool "Interrupts on hypertransport devices" | 
 | 69 | 	default y | 
| Adrian Bunk | fbab41c | 2006-10-11 01:22:04 -0700 | [diff] [blame] | 70 | 	depends on PCI && X86_LOCAL_APIC && X86_IO_APIC | 
| Eric W. Biederman | 8b955b0 | 2006-10-04 02:16:55 -0700 | [diff] [blame] | 71 | 	help | 
 | 72 | 	   This allows native hypertransport devices to use interrupts. | 
 | 73 |  | 
 | 74 | 	   If unsure say Y. | 
| Yu Zhao | d1b054d | 2009-03-20 11:25:11 +0800 | [diff] [blame] | 75 |  | 
| Joerg Roedel | db3c33c | 2011-09-27 15:57:13 +0200 | [diff] [blame] | 76 | config PCI_ATS | 
 | 77 | 	bool | 
 | 78 |  | 
| Yu Zhao | d1b054d | 2009-03-20 11:25:11 +0800 | [diff] [blame] | 79 | config PCI_IOV | 
 | 80 | 	bool "PCI IOV support" | 
 | 81 | 	depends on PCI | 
| Joerg Roedel | db3c33c | 2011-09-27 15:57:13 +0200 | [diff] [blame] | 82 | 	select PCI_ATS | 
| Yu Zhao | d1b054d | 2009-03-20 11:25:11 +0800 | [diff] [blame] | 83 | 	help | 
 | 84 | 	  I/O Virtualization is a PCI feature supported by some devices | 
 | 85 | 	  which allows them to create virtual devices which share their | 
 | 86 | 	  physical resources. | 
 | 87 |  | 
 | 88 | 	  If unsure, say N. | 
| Bjorn Helgaas | 204d49a | 2009-10-26 11:20:47 -0600 | [diff] [blame] | 89 |  | 
| Joerg Roedel | c320b97 | 2011-09-27 15:57:15 +0200 | [diff] [blame] | 90 | config PCI_PRI | 
 | 91 | 	bool "PCI PRI support" | 
| Joerg Roedel | c54420d | 2011-10-30 16:35:07 +0100 | [diff] [blame] | 92 | 	depends on PCI | 
| Joerg Roedel | c320b97 | 2011-09-27 15:57:15 +0200 | [diff] [blame] | 93 | 	select PCI_ATS | 
 | 94 | 	help | 
 | 95 | 	  PRI is the PCI Page Request Interface. It allows PCI devices that are | 
 | 96 | 	  behind an IOMMU to recover from page faults. | 
 | 97 |  | 
 | 98 | 	  If unsure, say N. | 
 | 99 |  | 
| Joerg Roedel | 086ac11 | 2011-09-27 15:57:16 +0200 | [diff] [blame] | 100 | config PCI_PASID | 
 | 101 | 	bool "PCI PASID support" | 
 | 102 | 	depends on PCI | 
 | 103 | 	select PCI_ATS | 
 | 104 | 	help | 
 | 105 | 	  Process Address Space Identifiers (PASIDs) can be used by PCI devices | 
 | 106 | 	  to access more than one IO address space at the same time. To make | 
 | 107 | 	  use of this feature an IOMMU is required which also supports PASIDs. | 
 | 108 | 	  Select this option if you have such an IOMMU and want to compile the | 
 | 109 | 	  driver for it into your kernel. | 
 | 110 |  | 
 | 111 | 	  If unsure, say N. | 
 | 112 |  | 
| Bjorn Helgaas | 204d49a | 2009-10-26 11:20:47 -0600 | [diff] [blame] | 113 | config PCI_IOAPIC | 
| Jan Beulich | b95a7bd | 2011-12-06 07:49:30 +0000 | [diff] [blame] | 114 | 	tristate "PCI IO-APIC hotplug support" if X86 | 
| Bjorn Helgaas | 204d49a | 2009-10-26 11:20:47 -0600 | [diff] [blame] | 115 | 	depends on PCI | 
 | 116 | 	depends on ACPI | 
 | 117 | 	depends on HOTPLUG | 
| Jan Beulich | b95a7bd | 2011-12-06 07:49:30 +0000 | [diff] [blame] | 118 | 	default !X86 | 
| Narendra_K@Dell.com | 6058989 | 2011-03-02 22:34:17 +0530 | [diff] [blame] | 119 |  | 
| Randy Dunlap | 8a226e0 | 2011-03-29 09:45:57 -0700 | [diff] [blame] | 120 | config PCI_LABEL | 
 | 121 | 	def_bool y if (DMI || ACPI) | 
 | 122 | 	select NLS |