| commit | c5cca146aa03e1f60fb179df65f0dbaf17bc64ed | [log] [tgz] |
|---|---|---|
| author | Joerg Roedel <joerg.roedel@amd.com> | Fri Oct 09 18:31:20 2009 +0200 |
| committer | Joerg Roedel <joerg.roedel@amd.com> | Fri Oct 09 18:37:46 2009 +0200 |
| tree | 457cdf7d8b3a12f58328d06a2bfd8665b395b9ba | |
| parent | c7084b35eb1a4d3353a501508baf9d3d82822c93 [diff] |
x86/amd-iommu: Workaround for erratum 63 There is an erratum for IOMMU hardware which documents undefined behavior when forwarding SMI requests from peripherals and the DTE of that peripheral has a sysmgt value of 01b. This problem caused weird IO_PAGE_FAULTS in my case. This patch implements the suggested workaround for that erratum into the AMD IOMMU driver. The erratum is documented with number 63. Cc: stable@kernel.org Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>