[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
[Qemu-devel] [PATCH] virtio: fix vring_align() on 64-bit win32 platforms
From: |
Andrew Baumann |
Subject: |
[Qemu-devel] [PATCH] virtio: fix vring_align() on 64-bit win32 platforms |
Date: |
Tue, 21 Mar 2017 15:31:51 -0700 |
"long" is 32-bits on win32, but we need to promote it to a 64-bit hwaddr
before negating, or else the top half of the address is truncated
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..a0a8543 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 (addr + align - 1) & ~(hwaddr)(align - 1);
}
typedef struct VirtQueue VirtQueue;
--
2.7.4
- [Qemu-devel] [PATCH] virtio: fix vring_align() on 64-bit win32 platforms,
Andrew Baumann <=