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| author |   David Woodhouse <David.Woodhouse@intel.com> | 2009-04-10 22:27:48 -0700 |
|---|---|---|
| committer | David Woodhouse <David.Woodhouse@intel.com> | 2009-04-10 22:27:48 -0700 |
| commit | e523b38e2f568af58baa13120a994cbf24e6dee0 (patch) | |
| tree | 2601f9c24420cb7c7c381062965908287fdde9a8 /kernel/trace/trace_power.c | |
| parent | Intel-IOMMU Alignment Issue in dma_pte_clear_range() (diff) | |
| download | wireguard-linux-e523b38e2f568af58baa13120a994cbf24e6dee0.tar.xz wireguard-linux-e523b38e2f568af58baa13120a994cbf24e6dee0.zip | |
intel-iommu: Avoid panic() for DRHD at address zero.
If the BIOS does something obviously stupid, like claiming that the
registers for the IOMMU are at physical address zero, then print a nasty
message and abort, rather than trying to set up the IOMMU and then later
panicking.
It's becoming more and more obvious that trusting this stuff to the BIOS
was a mistake.
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
Diffstat (limited to 'kernel/trace/trace_power.c')
0 files changed, 0 insertions, 0 deletions