memory: Implement memory_region_get_ram_addr with mr->ram_block

Signed-off-by: Fam Zheng <famz@redhat.com>
Message-Id: <1456813104-25902-4-git-send-email-famz@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

1 files changed, 5 insertions, 0 deletions

diff --git a/memory.c b/memory.c
index 1aa777da7f..d83405b176 100644
--- a/memory.c
+++ b/memory.c
@@ -1640,6 +1640,11 @@ void *memory_region_get_ram_ptr(MemoryRegion *mr)
     return ptr + offset;
 }
 
+ram_addr_t memory_region_get_ram_addr(MemoryRegion *mr)
+{
+    return mr->ram_block ? mr->ram_block->offset : RAM_ADDR_INVALID;
+}
+
 void memory_region_ram_resize(MemoryRegion *mr, ram_addr_t newsize, Error **errp)
 {
     assert(mr->ram_addr != RAM_ADDR_INVALID);