[Qemu-devel] [PATCH v2] virtio: fix vring_align() on 64-bit win32 platforms

[Andrew Baumann]

long is 32-bits on win32, which caused the top half of the address to
be truncated; this patch changes it to use the QEMU_ALIGN_UP macro
which does not suffer the same problem

Signed-off-by: Andrew Baumann <address@hidden>
---
 include/hw/virtio/virtio.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/include/hw/virtio/virtio.h b/include/hw/virtio/virtio.h
index 15efcf2..7b6edba 100644
--- a/include/hw/virtio/virtio.h
+++ b/include/hw/virtio/virtio.h
@@ -34,7 +34,7 @@ struct VirtQueue;
 static inline hwaddr vring_align(hwaddr addr,
                                              unsigned long align)
 {
-    return (addr + align - 1) & ~(align - 1);
+    return QEMU_ALIGN_UP(addr, align);
 }
 
 typedef struct VirtQueue VirtQueue;
-- 
2.8.3