memory: extract first iteration of address_space_read and address_space_write

We want to inline the case where there is only one iteration, because
then the compiler can also inline the memcpy.  As a start, extract
everything after the first address_space_translate call.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

1 files changed, 6 insertions, 0 deletions

diff --git a/include/exec/memory.h b/include/exec/memory.h
index 24b7cba737..3680d6a135 100644
--- a/include/exec/memory.h
+++ b/include/exec/memory.h
@@ -1366,6 +1366,12 @@ void address_space_unmap(AddressSpace *as, void *buffer, hwaddr len,
                          int is_write, hwaddr access_len);
 
 
+/* Internal functions, part of the implementation of address_space_read.  */
+MemTxResult address_space_read_continue(AddressSpace *as, hwaddr addr,
+                                        MemTxAttrs attrs, uint8_t *buf,
+                                        int len, hwaddr addr1, hwaddr l,
+					MemoryRegion *mr);
+
 #endif
 
 #endif