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[pcbios] Print INT 15,E820 extended attributes, if present
The ACPI specification defines an additional 4-byte field at offset 20 for an E820 memory map entry. This field is presumably optional, since generally E820 gets given only a 20-byte buffer to fill. However, the bits of this optional field are defined as: bit 0 : region is enabled bit 1 : region is non-volatile memory rather than RAM so it seems as though callers that pass in only a 20-byte buffer may be missing out on some rather important information.
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Michael Brown
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Sep 29, 2008
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