| commit | e523b38e2f568af58baa13120a994cbf24e6dee0 | [log] [tgz] |
|---|---|---|
| author | David Woodhouse <David.Woodhouse@intel.com> | Fri Apr 10 22:27:48 2009 -0700 |
| committer | David Woodhouse <David.Woodhouse@intel.com> | Fri Apr 10 22:27:48 2009 -0700 |
| tree | 2601f9c24420cb7c7c381062965908287fdde9a8 | |
| parent | 31d3568dfeb1dfb2735f119efe5ece7c6d40969c [diff] |
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>