Rusty Russell | ec3d41c | 2007-10-22 11:03:36 +1000 | [diff] [blame] | 1 | config VIRTIO |
Rusty Russell | c6fd470 | 2008-02-04 23:50:05 -0500 | [diff] [blame] | 2 | tristate |
Rusty Russell | 387daf1 | 2012-09-28 15:05:15 +0930 | [diff] [blame] | 3 | ---help--- |
| 4 | This option is selected by any driver which implements the virtio |
| 5 | bus, such as CONFIG_VIRTIO_PCI, CONFIG_VIRTIO_MMIO, CONFIG_LGUEST, |
| 6 | CONFIG_RPMSG or CONFIG_S390_GUEST. |
Rusty Russell | 0a8a69d | 2007-10-22 11:03:40 +1000 | [diff] [blame] | 7 | |
Ohad Ben-Cohen | e725421 | 2011-07-05 17:06:14 +0300 | [diff] [blame] | 8 | menu "Virtio drivers" |
| 9 | |
Anthony Liguori | 3343660 | 2007-11-12 21:30:26 -0600 | [diff] [blame] | 10 | config VIRTIO_PCI |
Kees Cook | d72c5a8 | 2012-10-02 11:19:07 -0700 | [diff] [blame] | 11 | tristate "PCI driver for virtio devices" |
| 12 | depends on PCI |
Anthony Liguori | 3343660 | 2007-11-12 21:30:26 -0600 | [diff] [blame] | 13 | select VIRTIO |
Anthony Liguori | 3343660 | 2007-11-12 21:30:26 -0600 | [diff] [blame] | 14 | ---help--- |
Michael S. Tsirkin | b2a6d51 | 2015-01-15 14:15:51 +0200 | [diff] [blame] | 15 | This driver provides support for virtio based paravirtual device |
Anthony Liguori | 3343660 | 2007-11-12 21:30:26 -0600 | [diff] [blame] | 16 | drivers over PCI. This requires that your VMM has appropriate PCI |
| 17 | virtio backends. Most QEMU based VMMs should support these devices |
| 18 | (like KVM or Xen). |
| 19 | |
Anthony Liguori | 3343660 | 2007-11-12 21:30:26 -0600 | [diff] [blame] | 20 | If unsure, say M. |
| 21 | |
Michael S. Tsirkin | 46506da | 2015-01-15 16:06:26 +0200 | [diff] [blame] | 22 | config VIRTIO_PCI_LEGACY |
| 23 | bool "Support for legacy virtio draft 0.9.X and older devices" |
| 24 | default y |
| 25 | depends on VIRTIO_PCI |
| 26 | ---help--- |
| 27 | Virtio PCI Card 0.9.X Draft (circa 2014) and older device support. |
| 28 | |
| 29 | This option enables building a transitional driver, supporting |
| 30 | both devices conforming to Virtio 1 specification, and legacy devices. |
| 31 | If disabled, you get a slightly smaller, non-transitional driver, |
| 32 | with no legacy compatibility. |
| 33 | |
| 34 | So look out into your driveway. Do you have a flying car? If |
| 35 | so, you can happily disable this option and virtio will not |
| 36 | break. Otherwise, leave it set. Unless you're testing what |
| 37 | life will be like in The Future. |
| 38 | |
| 39 | If unsure, say Y. |
| 40 | |
Rusty Russell | 6b35e40 | 2008-02-04 23:50:12 -0500 | [diff] [blame] | 41 | config VIRTIO_BALLOON |
Rusty Russell | 7a23eb2 | 2012-09-28 15:05:14 +0930 | [diff] [blame] | 42 | tristate "Virtio balloon driver" |
| 43 | depends on VIRTIO |
Konstantin Khlebnikov | 09316c0 | 2014-10-09 15:29:32 -0700 | [diff] [blame] | 44 | select MEMORY_BALLOON |
Rusty Russell | 6b35e40 | 2008-02-04 23:50:12 -0500 | [diff] [blame] | 45 | ---help--- |
| 46 | This driver supports increasing and decreasing the amount |
| 47 | of memory within a KVM guest. |
| 48 | |
| 49 | If unsure, say M. |
| 50 | |
Pawel Moll | edfd52e | 2011-10-24 14:07:03 +0100 | [diff] [blame] | 51 | config VIRTIO_MMIO |
Kees Cook | d72c5a8 | 2012-10-02 11:19:07 -0700 | [diff] [blame] | 52 | tristate "Platform bus driver for memory mapped virtio devices" |
| 53 | depends on HAS_IOMEM |
Pawel Moll | edfd52e | 2011-10-24 14:07:03 +0100 | [diff] [blame] | 54 | select VIRTIO |
Pawel Moll | edfd52e | 2011-10-24 14:07:03 +0100 | [diff] [blame] | 55 | ---help--- |
| 56 | This drivers provides support for memory mapped virtio |
| 57 | platform device driver. |
| 58 | |
| 59 | If unsure, say N. |
| 60 | |
Pawel Moll | 81a054c | 2012-05-09 18:30:16 +0100 | [diff] [blame] | 61 | config VIRTIO_MMIO_CMDLINE_DEVICES |
| 62 | bool "Memory mapped virtio devices parameter parsing" |
| 63 | depends on VIRTIO_MMIO |
| 64 | ---help--- |
| 65 | Allow virtio-mmio devices instantiation via the kernel command line |
| 66 | or module parameters. Be aware that using incorrect parameters (base |
| 67 | address in particular) can crash your system - you have been warned. |
| 68 | See Documentation/kernel-parameters.txt for details. |
| 69 | |
| 70 | If unsure, say 'N'. |
| 71 | |
Ohad Ben-Cohen | e725421 | 2011-07-05 17:06:14 +0300 | [diff] [blame] | 72 | endmenu |