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| author | Eric Auger <eric.auger@redhat.com> | 2019-02-15 19:16:06 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-01-27 16:50:24 +0300 |
| commit | c8fa33f8315353035dece3e3ff24e4b21b05b5b0 (patch) | |
| tree | 45c195af4bedbd9f2b9aa4880eb192823392ea7b /drivers/hwmon | |
| parent | 7aa3aab0e2f865b1298e9e7b672aa554a31fdedd (diff) | |
| download | linux-c8fa33f8315353035dece3e3ff24e4b21b05b5b0.tar.xz | |
vfio_pci: Enable memory accesses before calling pci_map_rom
[ Upstream commit 0cfd027be1d6def4a462cdc180c055143af24069 ]
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: 89e1f7d4c66d ("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>
Diffstat (limited to 'drivers/hwmon')
0 files changed, 0 insertions, 0 deletions