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Diffstat (limited to 'OvmfPkg/XenPvBlkDxe/BlockIo.c')
-rw-r--r--OvmfPkg/XenPvBlkDxe/BlockIo.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/OvmfPkg/XenPvBlkDxe/BlockIo.c b/OvmfPkg/XenPvBlkDxe/BlockIo.c
index 4f3bc53f3e..7fc7a05b4c 100644
--- a/OvmfPkg/XenPvBlkDxe/BlockIo.c
+++ b/OvmfPkg/XenPvBlkDxe/BlockIo.c
@@ -136,7 +136,7 @@ XenPvBlkDxeBlockIoReadWriteBlocks (
}
IoData.Dev = XEN_BLOCK_FRONT_FROM_BLOCK_IO (This);
- Sector = Lba * (Media->BlockSize / 512);
+ Sector = (UINTN)MultU64x32 (Lba, Media->BlockSize / 512);
while (BufferSize > 0) {
if (((UINTN)Buffer & EFI_PAGE_MASK) == 0) {