mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-08-26 19:00:25 +00:00
![Linus Torvalds](/assets/img/avatar_default.png)
A huge patchset supporting vq resize using the new vq reset capability. Features, fixes, cleanups all over the place. Signed-off-by: Michael S. Tsirkin <mst@redhat.com> -----BEGIN PGP SIGNATURE----- iQFDBAABCAAtFiEEXQn9CHHI+FuUyooNKB8NuNKNVGkFAmL2F9APHG1zdEByZWRo YXQuY29tAAoJECgfDbjSjVRp00QIAKpxyu+zCtrdDuh68DsNn1Cu0y0PXG336ySy MA1ck/bv94MZBIbI/Bnn3T1jDmUqTFHJiwaGz/aZ5gGAplZiejhH5Ds3SYjHckaa MKeJ4FTXin9RESP+bXhv4BgZ+ju3KHHkf1jw3TAdVKQ7Nma1u4E6f8nprYEi0TI0 7gLUYenqzS7X1+v9O3rEvPr7tSbAKXYGYpV82sSjHIb9YPQx5luX1JJIZade8A25 mTt5hG1dP1ugUm1NEBPQHjSvdrvO3L5Ahy0My2Bkd77+tOlNF4cuMPt2NS/6+Pgd n6oMt3GXqVvw5RxZyY8dpknH5kofZhjgFyZXH0l+aNItfHUs7t0= =rIo2 -----END PGP SIGNATURE----- Merge tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost Pull virtio updates from Michael Tsirkin: - A huge patchset supporting vq resize using the new vq reset capability - Features, fixes, and cleanups all over the place * tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost: (88 commits) vdpa/mlx5: Fix possible uninitialized return value vdpa_sim_blk: add support for discard and write-zeroes vdpa_sim_blk: add support for VIRTIO_BLK_T_FLUSH vdpa_sim_blk: make vdpasim_blk_check_range usable by other requests vdpa_sim_blk: check if sector is 0 for commands other than read or write vdpa_sim: Implement suspend vdpa op vhost-vdpa: uAPI to suspend the device vhost-vdpa: introduce SUSPEND backend feature bit vdpa: Add suspend operation virtio-blk: Avoid use-after-free on suspend/resume virtio_vdpa: support the arg sizes of find_vqs() vhost-vdpa: Call ida_simple_remove() when failed vDPA: fix 'cast to restricted le16' warnings in vdpa.c vDPA: !FEATURES_OK should not block querying device config space vDPA/ifcvf: support userspace to query features and MQ of a management device vDPA/ifcvf: get_config_size should return a value no greater than dev implementation vhost scsi: Allow user to control num virtqueues vhost-scsi: Fix max number of virtqueues vdpa/mlx5: Support different address spaces for control and data vdpa/mlx5: Implement susupend virtqueue callback ...
176 lines
5.1 KiB
Text
176 lines
5.1 KiB
Text
# SPDX-License-Identifier: GPL-2.0-only
|
|
config VIRTIO_ANCHOR
|
|
bool
|
|
|
|
config VIRTIO
|
|
tristate
|
|
select VIRTIO_ANCHOR
|
|
help
|
|
This option is selected by any driver which implements the virtio
|
|
bus, such as CONFIG_VIRTIO_PCI, CONFIG_VIRTIO_MMIO, CONFIG_RPMSG
|
|
or CONFIG_S390_GUEST.
|
|
|
|
config VIRTIO_PCI_LIB
|
|
tristate
|
|
help
|
|
Modern PCI device implementation. This module implements the
|
|
basic probe and control for devices which are based on modern
|
|
PCI device with possible vendor specific extensions. Any
|
|
module that selects this module must depend on PCI.
|
|
|
|
config VIRTIO_PCI_LIB_LEGACY
|
|
tristate
|
|
help
|
|
Legacy PCI device (Virtio PCI Card 0.9.x Draft and older device)
|
|
implementation.
|
|
This module implements the basic probe and control for devices
|
|
which are based on legacy PCI device. Any module that selects this
|
|
module must depend on PCI.
|
|
|
|
menuconfig VIRTIO_MENU
|
|
bool "Virtio drivers"
|
|
default y
|
|
|
|
if VIRTIO_MENU
|
|
|
|
config VIRTIO_HARDEN_NOTIFICATION
|
|
bool "Harden virtio notification"
|
|
depends on BROKEN
|
|
help
|
|
Enable this to harden the device notifications and suppress
|
|
those that happen at a time where notifications are illegal.
|
|
|
|
Experimental: Note that several drivers still have issues that
|
|
may cause crashes or hangs when correct handling of
|
|
notifications is enforced; depending on the subset of
|
|
drivers and devices you use, this may or may not work.
|
|
|
|
If unsure, say N.
|
|
|
|
config VIRTIO_PCI
|
|
tristate "PCI driver for virtio devices"
|
|
depends on PCI
|
|
select VIRTIO_PCI_LIB
|
|
select VIRTIO
|
|
help
|
|
This driver provides support for virtio based paravirtual device
|
|
drivers over PCI. This requires that your VMM has appropriate PCI
|
|
virtio backends. Most QEMU based VMMs should support these devices
|
|
(like KVM or Xen).
|
|
|
|
If unsure, say M.
|
|
|
|
config VIRTIO_PCI_LEGACY
|
|
bool "Support for legacy virtio draft 0.9.X and older devices"
|
|
default y
|
|
depends on VIRTIO_PCI
|
|
select VIRTIO_PCI_LIB_LEGACY
|
|
help
|
|
Virtio PCI Card 0.9.X Draft (circa 2014) and older device support.
|
|
|
|
This option enables building a transitional driver, supporting
|
|
both devices conforming to Virtio 1 specification, and legacy devices.
|
|
If disabled, you get a slightly smaller, non-transitional driver,
|
|
with no legacy compatibility.
|
|
|
|
So look out into your driveway. Do you have a flying car? If
|
|
so, you can happily disable this option and virtio will not
|
|
break. Otherwise, leave it set. Unless you're testing what
|
|
life will be like in The Future.
|
|
|
|
If unsure, say Y.
|
|
|
|
config VIRTIO_VDPA
|
|
tristate "vDPA driver for virtio devices"
|
|
depends on VDPA
|
|
select VIRTIO
|
|
help
|
|
This driver provides support for virtio based paravirtual
|
|
device driver over vDPA bus. For this to be useful, you need
|
|
an appropriate vDPA device implementation that operates on a
|
|
physical device to allow the datapath of virtio to be
|
|
offloaded to hardware.
|
|
|
|
If unsure, say M.
|
|
|
|
config VIRTIO_PMEM
|
|
tristate "Support for virtio pmem driver"
|
|
depends on VIRTIO
|
|
depends on LIBNVDIMM
|
|
help
|
|
This driver provides access to virtio-pmem devices, storage devices
|
|
that are mapped into the physical address space - similar to NVDIMMs
|
|
- with a virtio-based flushing interface.
|
|
|
|
If unsure, say Y.
|
|
|
|
config VIRTIO_BALLOON
|
|
tristate "Virtio balloon driver"
|
|
depends on VIRTIO
|
|
select MEMORY_BALLOON
|
|
select PAGE_REPORTING
|
|
help
|
|
This driver supports increasing and decreasing the amount
|
|
of memory within a KVM guest.
|
|
|
|
If unsure, say M.
|
|
|
|
config VIRTIO_MEM
|
|
tristate "Virtio mem driver"
|
|
depends on X86_64 || ARM64
|
|
depends on VIRTIO
|
|
depends on MEMORY_HOTPLUG
|
|
depends on MEMORY_HOTREMOVE
|
|
depends on CONTIG_ALLOC
|
|
depends on EXCLUSIVE_SYSTEM_RAM
|
|
help
|
|
This driver provides access to virtio-mem paravirtualized memory
|
|
devices, allowing to hotplug and hotunplug memory.
|
|
|
|
This driver currently only supports x86-64 and arm64. Although it
|
|
should compile on other architectures that implement memory
|
|
hot(un)plug, architecture-specific and/or common
|
|
code changes may be required for virtio-mem, kdump and kexec to work as
|
|
expected.
|
|
|
|
If unsure, say M.
|
|
|
|
config VIRTIO_INPUT
|
|
tristate "Virtio input driver"
|
|
depends on VIRTIO
|
|
depends on INPUT
|
|
help
|
|
This driver supports virtio input devices such as
|
|
keyboards, mice and tablets.
|
|
|
|
If unsure, say M.
|
|
|
|
config VIRTIO_MMIO
|
|
tristate "Platform bus driver for memory mapped virtio devices"
|
|
depends on HAS_IOMEM && HAS_DMA
|
|
select VIRTIO
|
|
help
|
|
This drivers provides support for memory mapped virtio
|
|
platform device driver.
|
|
|
|
If unsure, say N.
|
|
|
|
config VIRTIO_MMIO_CMDLINE_DEVICES
|
|
bool "Memory mapped virtio devices parameter parsing"
|
|
depends on VIRTIO_MMIO
|
|
help
|
|
Allow virtio-mmio devices instantiation via the kernel command line
|
|
or module parameters. Be aware that using incorrect parameters (base
|
|
address in particular) can crash your system - you have been warned.
|
|
See Documentation/admin-guide/kernel-parameters.rst for details.
|
|
|
|
If unsure, say 'N'.
|
|
|
|
config VIRTIO_DMA_SHARED_BUFFER
|
|
tristate
|
|
depends on DMA_SHARED_BUFFER
|
|
help
|
|
This option adds a flavor of dma buffers that are backed by
|
|
virtio resources.
|
|
|
|
endif # VIRTIO_MENU
|