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[fdtmem] Record size of accessible physical address space

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The size of accessible physical address space will be required for the
runtime memory map, not just at relocation time.  Make this size an
additional parameter to fdt_register() (matching the prototype for
fdt_relocate()), and record the value for future reference.

Note that we cannot simply store the limit in fdt_relocate() since it
is called before .data is writable and before .bss is zeroed.

Signed-off-by: Michael Brown <mcb30@ipxe.org>
This commit is contained in:
Michael Brown
2025-05-14 22:09:51 +01:00
parent 64ad1d03c3
commit e0c4cfa81e
3 changed files with 10 additions and 2 deletions
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src/include/ipxe/fdtmem.h
+1 -1
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@@ -13,6 +13,6 @@ FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL );
#include <ipxe/fdt.h>
extern physaddr_t fdtmem_relocate ( struct fdt_header *hdr, size_t limit );
extern int fdtmem_register ( struct fdt_header *hdr );
extern int fdtmem_register ( struct fdt_header *hdr, size_t limit );
#endif /* _IPXE_FDTMEM_H */