From: Joerg Roedel Date: Fri, 9 Oct 2009 16:31:20 +0000 (+0200) Subject: x86/amd-iommu: Workaround for erratum 63 X-Git-Tag: v2.6.32-rc7~75^2~1^2^2~1 X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=c5cca146aa03e1f60fb179df65f0dbaf17bc64ed;p=pandora-kernel.git 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 --- Reading git-diff-tree failed