16.5.5 HWRPB: Memory Data Descriptor Table Portion
The memory data descriptor table (MEMDSC) contains a description of all
physical memory found during memory sizing. The MEMDSC is quadword-
aligned and begins at an offset from the beginning of the HWRPB (HWRPB[C8]).
The data in the MEMDSC consists of memory cluster descriptors.
The memory cluster descriptors are built for each contiguous chunk of memory
that previous testing has found to be good. The cluster descriptors are stored in
the MEMDSC in ascending order: cluster 0 is associated with the lowest portion
of good memory.
Figure 31 shows a memory data descriptor table. The next table lists the
components of the memory data descriptor.
16–50 Console
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