exec: Access MemoryRegion with MemOp

The memory_region_dispatch_{read|write} operand "unsigned size" is
being converted into a "MemOp op".

Convert interfaces by using no-op size_memop.

After all interfaces are converted, size_memop will be implemented
and the memory_region_dispatch_{read|write} operand "unsigned size"
will be converted into a "MemOp op".

As size_memop is a no-op, this patch does not change any behaviour.

Signed-off-by: Tony Nguyen <tony.nguyen@bt.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <3b042deef0a60dd49ae2320ece92120ba6027f2b.1566466906.git.tony.nguyen@bt.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

1 files changed, 4 insertions, 2 deletions

diff --git a/exec.c b/exec.c
index 1df966d17a..cc9697fe1b 100644
--- a/exec.c
+++ b/exec.c
@@ -3364,7 +3364,8 @@ static MemTxResult flatview_write_continue(FlatView *fv, hwaddr addr,
             /* XXX: could force current_cpu to NULL to avoid
                potential bugs */
             val = ldn_p(buf, l);
-            result |= memory_region_dispatch_write(mr, addr1, val, l, attrs);
+            result |= memory_region_dispatch_write(mr, addr1, val,
+                                                   size_memop(l), attrs);
         } else {
             /* RAM case */
             ptr = qemu_ram_ptr_length(mr->ram_block, addr1, &l, false);
@@ -3425,7 +3426,8 @@ MemTxResult flatview_read_continue(FlatView *fv, hwaddr addr,
             /* I/O case */
             release_lock |= prepare_mmio_access(mr);
             l = memory_access_size(mr, l, addr1);
-            result |= memory_region_dispatch_read(mr, addr1, &val, l, attrs);
+            result |= memory_region_dispatch_read(mr, addr1, &val,
+                                                  size_memop(l), attrs);
             stn_p(buf, l, val);
         } else {
             /* RAM case */