linux/drivers/vfio
Alex Williamson bc138db1b9 vfio-pci: Mask cap zero
The PCI Code and ID Assignment Specification changed capability ID 0
from reserved to a NULL capability in the v1.1 revision.  The NULL
capability is defined to include only the 16-bit capability header,
ie. only the ID and next pointer.  Unfortunately vfio-pci creates a
map of config space, where ID 0 is used to reserve the standard type
0 header.  Finding an actual capability with this ID therefore results
in a bogus range marked in that map and conflicts with subsequent
capabilities.  As this seems to be a dummy capability anyway and we
already support dropping capabilities, let's hide this one rather than
delving into the potentially subtle dependencies within our map.

Seen on an NVIDIA Tesla T4.

Reviewed-by: Cornelia Huck <cohuck@redhat.com>
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
2020-05-18 09:55:35 -06:00
..
mdev vfio/mdev: make create attribute static 2020-01-09 11:30:57 -07:00
pci vfio-pci: Mask cap zero 2020-05-18 09:55:35 -06:00
platform vfio: platform: Switch to platform_get_irq_optional() 2020-03-24 09:26:30 -06:00
Kconfig docs: driver-api: add a series of orphaned documents 2019-07-15 11:03:02 -03:00
Makefile License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
vfio_iommu_spapr_tce.c vfio/spapr_tce: use mmgrab 2020-01-07 13:03:12 -07:00
vfio_iommu_type1.c vfio/type1: Fix VA->PA translation for PFNMAP VMAs in vaddr_get_pfn() 2020-04-23 12:10:01 -06:00
vfio_spapr_eeh.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
vfio.c Merge branches 'v5.7/vfio/alex-sriov-v3' and 'v5.7/vfio/yan-dma-rw-v4' into v5.7/vfio/next 2020-03-24 09:32:41 -06:00
virqfd.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00