Remove IO_MEM_SHIFT

We no longer use any of the lower bits of a ram_addr, so we might as well
use them for the io table index.  This increases the number of potential
I/O handlers by a factor of 8.

Signed-off-by: Avi Kivity <avi@redhat.com>
Reviewed-by: Richard Henderson <rth@twiddle.net>

1 files changed, 1 insertions, 1 deletions

diff --git a/cpu-all.h b/cpu-all.h
index 31d5b27dcb..e2c3c49283 100644
--- a/cpu-all.h
+++ b/cpu-all.h
@@ -503,7 +503,7 @@ extern int mem_prealloc;
    3 flags.  The ROMD code stores the page ram offset in iotlb entry, 
    so only a limited number of ids are avaiable.  */
 
-#define IO_MEM_NB_ENTRIES  (1 << (TARGET_PAGE_BITS  - IO_MEM_SHIFT))
+#define IO_MEM_NB_ENTRIES  (1 << TARGET_PAGE_BITS)
 
 /* Flags stored in the low bits of the TLB virtual address.  These are
    defined so that fast path ram access is all zeros.  */