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vfio-mdev: turn VFIO_MDEV into a selectable symbol

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VFIO_MDEV is just a library with helpers for the drivers.  Stop making
it a user choice and just select it by the drivers that use the helpers.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Jason Gunthorpe <jgg@nvidia.com>
Reviewed-by: Tony Krowiak <akrowiak@linux.ibm.com>
Link: https://lore.kernel.org/r/20230110091009.474427-3-hch@lst.de
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
This commit is contained in:
Christoph Hellwig 2023-01-10 10:10:07 +01:00 committed by Alex Williamson
parent 6b182403ee
commit 8bf8c5ee1f
7 changed files with 9 additions and 16 deletions
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1
Documentation/s390/vfio-ap.rst
View File

@ -553,7 +553,6 @@ These are the steps:
* ZCRYPT
* S390_AP_IOMMU
* VFIO
* VFIO_MDEV
* KVM
If using make menuconfig select the following to build the vfio_ap module::

6
arch/s390/Kconfig
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@ -713,7 +713,8 @@ config EADM_SCH
config VFIO_CCW
def_tristate n
prompt "Support for VFIO-CCW subchannels"
depends on S390_CCW_IOMMU && VFIO_MDEV
depends on S390_CCW_IOMMU
select VFIO_MDEV
help
This driver allows usage of I/O subchannels via VFIO-CCW.
@ -723,7 +724,8 @@ config VFIO_CCW
config VFIO_AP
def_tristate n
prompt "VFIO support for AP devices"
depends on S390_AP_IOMMU && VFIO_MDEV && KVM
depends on S390_AP_IOMMU && KVM
select VFIO_MDEV
depends on ZCRYPT
help
This driver grants access to Adjunct Processor (AP) devices

1
arch/s390/configs/debug_defconfig
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@ -594,7 +594,6 @@ CONFIG_SYNC_FILE=y
CONFIG_VFIO=m
CONFIG_VFIO_PCI=m
CONFIG_MLX5_VFIO_PCI=m
CONFIG_VFIO_MDEV=m
CONFIG_VIRTIO_PCI=m
CONFIG_VIRTIO_BALLOON=m
CONFIG_VIRTIO_INPUT=y

1
arch/s390/configs/defconfig
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@ -583,7 +583,6 @@ CONFIG_SYNC_FILE=y
CONFIG_VFIO=m
CONFIG_VFIO_PCI=m
CONFIG_MLX5_VFIO_PCI=m
CONFIG_VFIO_MDEV=m
CONFIG_VIRTIO_PCI=m
CONFIG_VIRTIO_BALLOON=m
CONFIG_VIRTIO_INPUT=y

2
drivers/gpu/drm/i915/Kconfig
View File

@ -116,9 +116,9 @@ config DRM_I915_GVT_KVMGT
depends on X86
depends on 64BIT
depends on KVM
depends on VFIO_MDEV
select DRM_I915_GVT
select KVM_EXTERNAL_WRITE_TRACKING
select VFIO_MDEV
help
Choose this option if you want to enable Intel GVT-g graphics

8
drivers/vfio/mdev/Kconfig
View File

@ -1,10 +1,4 @@
# SPDX-License-Identifier: GPL-2.0-only
config VFIO_MDEV
tristate "Mediated device driver framework"
default n
help
Provides a framework to virtualize devices.
See Documentation/driver-api/vfio-mediated-device.rst for more details.
If you don't know what do here, say N.
tristate

6
samples/Kconfig
View File

@ -185,14 +185,14 @@ config SAMPLE_UHID
config SAMPLE_VFIO_MDEV_MTTY
tristate "Build VFIO mtty example mediated device sample code"
depends on VFIO_MDEV
select VFIO_MDEV
help
Build a virtual tty sample driver for use as a VFIO
mediated device
config SAMPLE_VFIO_MDEV_MDPY
tristate "Build VFIO mdpy example mediated device sample code"
depends on VFIO_MDEV
select VFIO_MDEV
help
Build a virtual display sample driver for use as a VFIO
mediated device. It is a simple framebuffer and supports
@ -209,7 +209,7 @@ config SAMPLE_VFIO_MDEV_MDPY_FB
config SAMPLE_VFIO_MDEV_MBOCHS
tristate "Build VFIO mdpy example mediated device sample code"
depends on VFIO_MDEV
select VFIO_MDEV
select DMA_SHARED_BUFFER
help
Build a virtual display sample driver for use as a VFIO