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Henry Wang
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This commit introduces the static heap memory, which is parts of RAM reserved in the beginning of the boot time for heap. Firstly, since a new type of memory bank is needed for marking the memory bank solely as the heap, this commit defines `enum membank_type` and use this enum in function device_tree_get_meminfo(). Changes of code are done accordingly following the introduction of this enum. Also, this commit introduces the logic to parse the static heap configuration in device tree. If the memory bank is reserved as heap through `xen,static-heap` property in device tree `chosen` node, the memory will be marked as static heap type. A documentation section is added, describing the definition of static heap memory and the method of enabling the static heap memory through device tree at boot time. Signed-off-by: Henry Wang <Henry.Wang@arm.com> Signed-off-by: Penny Zheng <penny.zheng@arm.com> Reviewed-by: Julien Grall <jgrall@amazon.com>
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