This patches implements the workaround of AMD erratum 383 on family 10h 
CPUs. It destroys the guest VM when a MC error with a special pattern is 
detected. Without this patch, a guest VM failure can potentially crash 
Xen hypervisor and the whole system. The erratum will be published in 
next version of guide.

Signed-off-by: Wei Huang <wei.huang2@amd.com>
Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
Signed-off-by: Christoph Egger <christoph.egger@amd.com>