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vfio/gvt: Make DRM_I915_GVT depend on VFIO_MDEV 

At some point there may have been some reason for this weird split in this
driver, but today only the VFIO side is actually implemented.

However, it got messed up at some point and mdev code was put in gvt.c and
is pretending to be "generic" by masquerading as some generic attribute list:

   static MDEV_TYPE_ATTR_RO(description);

But MDEV_TYPE attributes are only usable with mdev_device, nothing else.

Ideally all of this would be moved to kvmgt.c, but it is entangled with
the rest of the "generic" code in an odd way. Thus put in a kconfig
dependency so we don't get randconfig failures when the next patch creates
a link time dependency related to the use of MDEV_TYPE.

Reviewed-by: Kevin Tian <kevin.tian@intel.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Message-Id: <15-v2-d36939638fc6+d54-vfio2_jgg@nvidia.com>
Acked-by: Zhenyu Wang <zhenyuw@linux.intel.com>
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
This commit is contained in:
Jason Gunthorpe 2021-04-06 16:40:38 -03:00 committed by Alex Williamson
parent 3d3a360e57
commit 07e543f4f9
1 changed files with 1 additions and 0 deletions
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1
drivers/gpu/drm/i915/Kconfig
View File

@ -101,6 +101,7 @@ config DRM_I915_GVT
bool "Enable Intel GVT-g graphics virtualization host support"
depends on DRM_I915
depends on 64BIT
depends on VFIO_MDEV
default n
help
Choose this option if you want to enable Intel GVT-g graphics