Changeset 90213 in vbox

Timestamp:

Jul 15, 2021 11:59:06 AM (4 years ago)

Author:

vboxsync

svn:sync-xref-src-repo-rev:

145742

Message:

Intel IOMMU: bugref:9967 PTE error reporting fix.

File:

• trunk/src/VBox/Devices/Bus/DevIommuIntel.cpp (modified) (1 diff)

trunk/src/VBox/Devices/Bus/DevIommuIntel.cpp

@@ -2249 +2249 @@
             if ((fPtPerm & (VTD_BF_SL_PTE_R_MASK | VTD_BF_SL_PTE_W_MASK)) == 0)
                 dmarAtFaultRecord(pDevIns, kDmarDiag_At_Xm_Pte_Not_Present, pMemReqIn, pMemReqAux);
-            else if (!(pMemReqIn->AddrRange.fPerm & DMAR_PERM_READ))
+            else if ((pMemReqIn->AddrRange.fPerm & DMAR_PERM_READ) != (fPtPerm & VTD_BF_SL_PTE_R_MASK))
                 dmarAtFaultRecord(pDevIns, kDmarDiag_At_Xm_Perm_Read_Denied, pMemReqIn, pMemReqAux);
             else