diff options
| -rw-r--r-- | OvmfPkg/VirtioBlkDxe/VirtioBlk.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/OvmfPkg/VirtioBlkDxe/VirtioBlk.c b/OvmfPkg/VirtioBlkDxe/VirtioBlk.c index 86041f0caf..1ac36cd17b 100644 --- a/OvmfPkg/VirtioBlkDxe/VirtioBlk.c +++ b/OvmfPkg/VirtioBlkDxe/VirtioBlk.c @@ -664,7 +664,7 @@ VirtioBlkInit ( goto Failed;
}
if (BlockSize == 0 || BlockSize % 512 != 0 ||
- NumSectors % (BlockSize / 512) != 0) {
+ ModU64x32 (NumSectors, BlockSize / 512) != 0) {
//
// We can only handle a logical block consisting of whole sectors,
// and only a disk composed of whole logical blocks.
@@ -747,7 +747,8 @@ VirtioBlkInit ( Dev->BlockIoMedia.WriteCaching = !!(Features & VIRTIO_BLK_F_FLUSH);
Dev->BlockIoMedia.BlockSize = BlockSize;
Dev->BlockIoMedia.IoAlign = 0;
- Dev->BlockIoMedia.LastBlock = NumSectors / (BlockSize / 512) - 1;
+ Dev->BlockIoMedia.LastBlock = DivU64x32 (NumSectors,
+ BlockSize / 512) - 1;
return EFI_SUCCESS;
ReleaseQueue:
|