Huang Ying 4134b8c881 ACPI, APEI, Resolve false conflict between ACPI NVS and APEI
Some firmware will access memory in ACPI NVS region via APEI.  That
is, instructions in APEI ERST/EINJ table will read/write ACPI NVS
region.  The original resource conflict checking in APEI code will
check memory/ioport accessed by APEI via general resource management
mech.  But ACPI NVS region is marked as busy already, so that the
false resource conflict will prevent APEI ERST/EINJ to work.

To fix this, this patch excludes ACPI NVS regions when APEI components
request resources.  So that they will not conflict with ACPI NVS
regions.

Reported-and-tested-by: Pavel Ivanov <paivanof@gmail.com>
Signed-off-by: Huang Ying <ying.huang@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2012-01-17 03:54:46 -05:00
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