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[lib][fdtwalk] fix unaligned FDT memory reservation #505

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Merged
travisg merged 1 commit into from
Apr 16, 2026
+4 −4
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[lib][fdtwalk] fix unaligned FDT memory reservation #505

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8 changes: 4 additions & 4 deletions lib/fdtwalk/helpers.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -51,11 +51,11 @@ status_t fdtwalk_reserve_fdt_memory(const void *fdt, paddr_t fdt_phys) {
return ERR_NOT_FOUND;
}

uint32_t length = fdt_totalsize(fdt);
size_t length = fdt_totalsize(fdt);

paddr_t base = fdt_phys;
base = PAGE_ALIGN(base);
length = ROUNDUP(length, PAGE_SIZE);
paddr_t base = ROUNDDOWN(fdt_phys, PAGE_SIZE);
size_t offset = fdt_phys - base;
length = ROUNDUP(length + offset, PAGE_SIZE);

dprintf(INFO, "FDT: reserving physical range for FDT: [%#lx, %#lx]\n", base, base + length - 1);

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