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| author | Eric Auger | 2019-02-15 17:16:06 +0100 |
|---|---|---|
| committer | Alex Williamson | 2019-02-18 22:57:50 +0100 |
| commit | 0cfd027be1d6def4a462cdc180c055143af24069 (patch) | |
| tree | 42d345b7ae0a1c5b46cc2db984c993f3ffaa4b65 /drivers/vfio/platform/vfio_platform.c | |
| parent | vfio/pci: Restore device state on PM transition (diff) | |
| download | kernel-qcow2-linux-0cfd027be1d6def4a462cdc180c055143af24069.tar.gz kernel-qcow2-linux-0cfd027be1d6def4a462cdc180c055143af24069.tar.xz kernel-qcow2-linux-0cfd027be1d6def4a462cdc180c055143af24069.zip | |
vfio_pci: Enable memory accesses before calling pci_map_rom
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>
Diffstat (limited to 'drivers/vfio/platform/vfio_platform.c')
0 files changed, 0 insertions, 0 deletions