2019-05-19 12:07:45 +00:00
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# SPDX-License-Identifier: GPL-2.0-only
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2007-10-22 01:03:36 +00:00
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config VIRTIO
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2008-02-05 04:50:05 +00:00
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tristate
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2012-09-28 05:35:15 +00:00
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---help---
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This option is selected by any driver which implements the virtio
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2017-08-16 17:31:57 +00:00
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bus, such as CONFIG_VIRTIO_PCI, CONFIG_VIRTIO_MMIO, CONFIG_RPMSG
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or CONFIG_S390_GUEST.
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2007-10-22 01:03:40 +00:00
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2018-01-07 11:33:56 +00:00
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menuconfig VIRTIO_MENU
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bool "Virtio drivers"
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default y
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if VIRTIO_MENU
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2011-07-05 14:06:14 +00:00
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2007-11-13 03:30:26 +00:00
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config VIRTIO_PCI
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2012-10-02 18:19:07 +00:00
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tristate "PCI driver for virtio devices"
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depends on PCI
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2007-11-13 03:30:26 +00:00
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select VIRTIO
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---help---
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2015-01-15 12:15:51 +00:00
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This driver provides support for virtio based paravirtual device
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2007-11-13 03:30:26 +00:00
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drivers over PCI. This requires that your VMM has appropriate PCI
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virtio backends. Most QEMU based VMMs should support these devices
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(like KVM or Xen).
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If unsure, say M.
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2015-01-15 14:06:26 +00:00
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config VIRTIO_PCI_LEGACY
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bool "Support for legacy virtio draft 0.9.X and older devices"
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default y
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depends on VIRTIO_PCI
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---help---
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Virtio PCI Card 0.9.X Draft (circa 2014) and older device support.
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This option enables building a transitional driver, supporting
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both devices conforming to Virtio 1 specification, and legacy devices.
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If disabled, you get a slightly smaller, non-transitional driver,
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with no legacy compatibility.
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So look out into your driveway. Do you have a flying car? If
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so, you can happily disable this option and virtio will not
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break. Otherwise, leave it set. Unless you're testing what
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life will be like in The Future.
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If unsure, say Y.
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2019-07-05 14:03:23 +00:00
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config VIRTIO_PMEM
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tristate "Support for virtio pmem driver"
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depends on VIRTIO
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depends on LIBNVDIMM
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help
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This driver provides access to virtio-pmem devices, storage devices
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that are mapped into the physical address space - similar to NVDIMMs
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- with a virtio-based flushing interface.
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If unsure, say Y.
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2008-02-05 04:50:12 +00:00
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config VIRTIO_BALLOON
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2012-09-28 05:35:14 +00:00
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tristate "Virtio balloon driver"
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depends on VIRTIO
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2014-10-09 22:29:32 +00:00
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select MEMORY_BALLOON
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2008-02-05 04:50:12 +00:00
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---help---
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This driver supports increasing and decreasing the amount
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of memory within a KVM guest.
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If unsure, say M.
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2015-03-27 02:16:12 +00:00
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config VIRTIO_INPUT
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tristate "Virtio input driver"
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depends on VIRTIO
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depends on INPUT
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---help---
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This driver supports virtio input devices such as
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keyboards, mice and tablets.
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If unsure, say M.
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2019-04-03 15:04:09 +00:00
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config VIRTIO_MMIO
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2012-10-02 18:19:07 +00:00
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tristate "Platform bus driver for memory mapped virtio devices"
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2016-02-03 05:46:36 +00:00
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depends on HAS_IOMEM && HAS_DMA
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2019-04-03 15:04:09 +00:00
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select VIRTIO
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---help---
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This drivers provides support for memory mapped virtio
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2011-10-24 13:07:03 +00:00
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platform device driver.
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If unsure, say N.
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2012-05-09 17:30:16 +00:00
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config VIRTIO_MMIO_CMDLINE_DEVICES
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bool "Memory mapped virtio devices parameter parsing"
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depends on VIRTIO_MMIO
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---help---
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Allow virtio-mmio devices instantiation via the kernel command line
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or module parameters. Be aware that using incorrect parameters (base
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address in particular) can crash your system - you have been warned.
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2016-10-18 12:12:27 +00:00
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See Documentation/admin-guide/kernel-parameters.rst for details.
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2012-05-09 17:30:16 +00:00
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If unsure, say 'N'.
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2018-01-07 11:33:56 +00:00
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endif # VIRTIO_MENU
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2020-03-26 14:01:21 +00:00
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source "drivers/virtio/vdpa/Kconfig"
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