Changeset 89513 in vbox for trunk/src/VBox/Devices

Timestamp:

Jun 4, 2021 4:52:42 PM (4 years ago)

Author:

vboxsync

Message:

Intel IOMMU: bugref:9967 Fix bug while parsing the physical address out of the root-entry.

File:

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

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

@@ -2392 +2392 @@
             {
                 /* Read the context-entry from guest memory. */
-                RTGCPHYS const GCPhysCtxTable = RT_BF_GET(uRootEntryQword0, VTD_BF_0_ROOT_ENTRY_CTP);
+                RTGCPHYS const GCPhysCtxTable = uRootEntryQword0 & VTD_BF_0_ROOT_ENTRY_CTP_MASK;
                 uint8_t const idxCtxEntry = RT_LO_U8(pMemReqRemap->In.idDevice);
                 VTD_CONTEXT_ENTRY_T CtxEntry;