block-vpc: Fix support for images > 4 GB (Kevin Wolf)

This patch fixes the truncation of sector offsets to 32 bits.
Signed-off-by: NKevin Wolf <kwolf@suse.de>
Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>


git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6464 c046a42c-6fe2-441c-8c8c-71466251a162

block-vpc.c

@@ -256,7 +256,7 @@ static inline int64_t get_sector_offset(BlockDriverState *bs,
     if (pagetable_index >= s->max_table_entries || s->pagetable[pagetable_index] == 0xffffffff)
         return -1; // not allocated
 
-    bitmap_offset = 512 * s->pagetable[pagetable_index];
+    bitmap_offset = 512 * (uint64_t) s->pagetable[pagetable_index];
     block_offset = bitmap_offset + s->bitmap_size + (512 * pageentry_index);
 
     // We must ensure that we don't write to any sectors which are marked as