Eric Auger aecc7621fe vfio_pci: Enable memory accesses before calling pci_map_rom ...

[ Upstream commit 0cfd027be1 ]

pci_map_rom/pci_get_rom_size() performs memory access in the ROM.
In case the Memory Space accesses were disabled, readw() is likely
to trigger a synchronous external abort on some platforms.

In case memory accesses were disabled, re-enable them before the
call and disable them back again just after.

Fixes: 89e1f7d4c6 ("vfio: Add PCI device driver")
Signed-off-by: Eric Auger <eric.auger@redhat.com>
Suggested-by: Alex Williamson <alex.williamson@redhat.com>
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>

2020-01-29 10:24:16 +01:00

..

pci

vfio_pci: Enable memory accesses before calling pci_map_rom

2020-01-29 10:24:16 +01:00

platform

vfio: platform: Fix reset module leak in error path

2018-08-03 07:55:13 +02:00

Kconfig

vfio: Include No-IOMMU mode

2015-12-21 15:28:11 -07:00

Makefile

vfio: Split virqfd into a separate module for vfio bus drivers

2015-03-17 08:33:38 -06:00

vfio_iommu_spapr_tce.c

vfio/spapr_tce: Get rid of possible infinite loop

2019-12-05 15:34:47 +01:00

vfio_iommu_type1.c

vfio/type1: Limit DMA mappings per container

2019-05-04 08:49:10 +02:00

vfio_spapr_eeh.c

drivers/vfio: Support EEH error injection

2015-05-12 20:33:35 +10:00

vfio.c

vfio: New external user group/file match

2017-07-27 15:08:03 -07:00

virqfd.c

vfio: Split virqfd into a separate module for vfio bus drivers

2015-03-17 08:33:38 -06:00