REF: https://bugzilla.tianocore.org/show_bug.cgi?id=3954
--- C:\Edk2\MdeModulePkg\Bus\Pci\XhciDxe\Xhci.c Tue Jun 14 21:29:21 2022 UTC
+++ C:\myEdk2\MdeModulePkg\Bus\Pci\XhciDxe\Xhci.c Tue Jun 14 21:26:57 2022 UTC
@@ -1,7 +1,7 @@
/** @file
The XHCI controller driver.
-Copyright (c) 2011 - 2018, Intel Corporation. All rights reserved.
+Copyright (c) 2011 - 2022, Intel Corporation. All rights reserved.
SPDX-License-Identifier: BSD-2-Clause-Patent
**/
@@ -1813,7 +1813,12 @@
// This xHC supports a page size of 2^(n+12) if bit n is Set. For example,
// if bit 0 is Set, the xHC supports 4k byte page sizes.
//
- PageSize = XhcReadOpReg (Xhc, XHC_PAGESIZE_OFFSET) & XHC_PAGESIZE_MASK;
+ PageSize = XhcReadOpReg (Xhc, XHC_PAGESIZE_OFFSET);
+ if(PageSize == 0xFFFFFFFF) {
+ DEBUG ((DEBUG_INFO, "XhcCreateUsb3Hc: error reading XHC_PAGESIZE_OFFSET\n"));
+ goto ON_ERROR;
+ }
+ PageSize &= XHC_PAGESIZE_MASK;
Xhc->PageSize = 1 << (HighBitSet32 (PageSize) + 12);
ExtCapReg = (UINT16)(Xhc->HcCParams.Data.ExtCapReg);