| commit | 704126ad81b8cb7d3d70adb9ecb143f4d3fb38af | [log] [tgz] |
|---|---|---|
| author | Yu Zhao <yu.zhao@intel.com> | Sun Jan 04 16:28:52 2009 +0800 |
| committer | David Woodhouse <David.Woodhouse@intel.com> | Mon Feb 09 11:03:17 2009 +0000 |
| tree | e73c4d595799661757b7505cd67833addef0635e | |
| parent | 43f7392ba9e2585bf34f21399b1ed78692b5d437 [diff] |
VT-d: handle Invalidation Queue Error to avoid system hang When hardware detects any error with a descriptor from the invalidation queue, it stops fetching new descriptors from the queue until software clears the Invalidation Queue Error bit in the Fault Status register. Following fix handles the IQE so the kernel won't be trapped in an infinite loop. Signed-off-by: Yu Zhao <yu.zhao@intel.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>