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Diffstat (limited to 'OvmfPkg/VirtioBlkDxe/VirtioBlk.c')
-rw-r--r--OvmfPkg/VirtioBlkDxe/VirtioBlk.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/OvmfPkg/VirtioBlkDxe/VirtioBlk.c b/OvmfPkg/VirtioBlkDxe/VirtioBlk.c
index 1ac36cd17b..199b9dd0ae 100644
--- a/OvmfPkg/VirtioBlkDxe/VirtioBlk.c
+++ b/OvmfPkg/VirtioBlkDxe/VirtioBlk.c
@@ -11,6 +11,7 @@
synchronous requests and EFI_BLOCK_IO_PROTOCOL for now.
Copyright (C) 2012, Red Hat, Inc.
+ Copyright (c) 2012, Intel Corporation. All rights reserved.<BR>
This program and the accompanying materials are licensed and made available
under the terms and conditions of the BSD License which accompanies this
@@ -271,7 +272,7 @@ SynchronousRequest (
(BufferSize == 0 ? VIRTIO_BLK_T_FLUSH : VIRTIO_BLK_T_OUT) :
VIRTIO_BLK_T_IN;
Request.IoPrio = 0;
- Request.Sector = Lba * (BlockSize / 512);
+ Request.Sector = MultU64x32(Lba, BlockSize / 512);
VirtioPrepare (&Dev->Ring, &Indices);