diff options
| author | Donald Dutile <[email protected]> | 2012-06-04 17:29:02 -0400 |
|---|---|---|
| committer | Ingo Molnar <[email protected]> | 2012-06-08 12:15:43 +0200 |
| commit | 6f5cf52114dd87f9ed091678f7dfc8ff21bbe2b3 (patch) | |
| tree | 51d0e821a0eae76c34181a1f8286c1480d6bcbc4 /net/lapb/lapb_timer.c | |
| parent | bf947fcb77ff858f223c49c76e2d130095fa2585 (diff) | |
iommu/dmar: Reserve mmio space used by the IOMMU, if the BIOS forgets to
Intel-iommu initialization doesn't currently reserve the memory
used for the IOMMU registers. This can allow the pci resource
allocator to assign a device BAR to the same address as the
IOMMU registers. This can cause some not so nice side affects
when the driver ioremap's that region.
Introduced two helper functions to map & unmap the IOMMU
registers as well as simplify the init and exit paths.
Signed-off-by: Donald Dutile <[email protected]>
Acked-by: Chris Wright <[email protected]>
Cc: [email protected]
Cc: [email protected]
Cc: [email protected]
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Ingo Molnar <[email protected]>
Diffstat (limited to 'net/lapb/lapb_timer.c')
0 files changed, 0 insertions, 0 deletions