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-rw-r--r--hw/uefi/LIMITATIONS.md7
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diff --git a/hw/uefi/LIMITATIONS.md b/hw/uefi/LIMITATIONS.md
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+known issues and limitations
+----------------------------
+
+* works only on little endian hosts
+  - accessing structs in guest ram is done without endian conversion.
+* works only for 64-bit guests
+  - UINTN is mapped to uint64_t, for 32-bit guests that would be uint32_t