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memory: Access MemoryRegion with endianness

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Preparation for collapsing the two byte swaps adjust_endianness and
handle_bswap into the former.

Call memory_region_dispatch_{read|write} with endianness encoded into
the "MemOp op" operand.

This patch does not change any behaviour as
memory_region_dispatch_{read|write} is yet to handle the endianness.

Once it does handle endianness, callers with byte swaps can collapse
them into adjust_endianness.

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Tony Nguyen <tony.nguyen@bt.com>
Message-Id: <8066ab3eb037c0388dfadfe53c5118429dd1de3a.1566466906.git.tony.nguyen@bt.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
This commit is contained in:
Tony Nguyen 2019-08-24 04:36:52 +10:00 • committed by Richard Henderson
parent 07f0834f26
commit d5d680cacc
9 changed files with 75 additions and 23 deletions
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3
include/exec/memory.h
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@ -2211,6 +2211,9 @@ address_space_write_cached(MemoryRegionCache *cache, hwaddr addr,
}
}
/* enum device_endian to MemOp. */
MemOp devend_memop(enum device_endian end);
#endif
#endif