linux-stable/drivers/vfio
Kirti Wankhede 2b8bb1d771 vfio iommu type1: Fix size argument to vfio_find_dma() in pin_pages/unpin_pages
Passing zero for the size to vfio_find_dma() isn't compatible with
matching the start address of an existing vfio_dma. Doing so triggers a
corner case. In vfio_find_dma(), when the start address is equal to
dma->iova and size is 0, check for the end of search range makes it to
take wrong side of RB-tree. That fails the search even though the address
is present in mapped dma ranges.
In functions pin_pages and unpin_pages, the iova which is being searched
is base address of page to be pinned or unpinned. So here size should be
set to PAGE_SIZE, as argument to vfio_find_dma().

Signed-off-by: Kirti Wankhede <kwankhede@nvidia.com>
Signed-off-by: Neo Jia <cjia@nvidia.com>
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
2016-12-06 12:35:53 -07:00
..
mdev docs: Add Documentation for Mediated devices 2016-11-17 08:33:20 -07:00
pci vfio/pci: Drop unnecessary pcibios_err_to_errno() 2016-11-18 11:06:42 -07:00
platform vfio_platform: Updated to use vfio_set_irqs_validate_and_prepare() 2016-11-17 08:33:20 -07:00
Kconfig vfio: Mediated device Core driver 2016-11-17 08:24:48 -07:00
Makefile vfio: Mediated device Core driver 2016-11-17 08:24:48 -07:00
vfio.c vfio: support notifier chain in vfio_group 2016-12-01 10:40:05 -07:00
vfio_iommu_spapr_tce.c VFIO updates for v4.7-rc1 2016-05-25 09:47:26 -07:00
vfio_iommu_type1.c vfio iommu type1: Fix size argument to vfio_find_dma() in pin_pages/unpin_pages 2016-12-06 12:35:53 -07:00
vfio_spapr_eeh.c drivers/vfio: Support EEH error injection 2015-05-12 20:33:35 +10:00
virqfd.c vfio: Split virqfd into a separate module for vfio bus drivers 2015-03-17 08:33:38 -06:00