Implement generic sub-page I/O based on earlier work by J. Mayer.

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@2868 c046a42c-6fe2-441c-8c8c-71466251a162

1 files changed, 1 insertions, 0 deletions

diff --git a/cpu-all.h b/cpu-all.h
index 5f0a7e9894..5db290356e 100644
--- a/cpu-all.h
+++ b/cpu-all.h
@@ -858,6 +858,7 @@ extern uint8_t *phys_ram_dirty;
    exception, the write memory callback gets the ram offset instead of
    the physical address */
 #define IO_MEM_ROMD        (1)
+#define IO_MEM_SUBPAGE     (2)
 
 typedef void CPUWriteMemoryFunc(void *opaque, target_phys_addr_t addr, uint32_t value);
 typedef uint32_t CPUReadMemoryFunc(void *opaque, target_phys_addr_t addr);