Commit df4efb68 authored by Committed by ROOLBrowse files
Support RAM banks with high physical addresses
This changes PhysRamTable to store the address of each RAM bank in terms of (4KB) pages instead of bytes, effectively allowing it to support a 44 bit physical address space. This means that (when the long descriptor page table format is used) the OS can now make use of memory located outside the lower 4GB of the physical address space. However some public APIs still need extending to allow for all operations to be supported on high RAM (e.g. OS_Memory logical to physical address lookups) OS_Memory 12 (RecommendPage) has been extended to allow R4-R7 to be used to specify a (64bit) physical address range which the recommended pages must lie within. For backwards compatibility this defaults to 0-4GB.
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