Changeset 87527 in vbox

Timestamp:

Feb 2, 2021 7:31:20 AM (4 years ago)

Author:

vboxsync

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

142552

Message:

AMD IOMMU: bugref:9654 IOTLB cache bits.

File:

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

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

@@ -737 +737 @@
             {
                 --pThis->cCachedIotlbes;
-                uint64_t const uRangeIovaLast = pIotlbe->Core.KeyLast;
+
+                /* Grab the last valid address in the range. */
+                uint64_t uRangeIovaLast;
+                uint16_t uRangeDomainId;
+                iommuAmdIotlbDeconstructKey(pIotlbe->Core.KeyLast, &uRangeDomainId, &uRangeIovaLast);
+                Assert(uRangeDomainId == uDomainId); NOREF(uRangeDomainId);   /* Paranoia. */
+
+                /* Remove the range. */
                 RTListNodeRemove(&pIotlbe->NdLru);
                 RTListPrepend(&pThis->LstLruIotlbe, &pIotlbe->NdLru);
                 RT_ZERO(*pIotlbe);
+
+                /* Check if we need to invalidate the next range. */
                 if (uIovaLast > uRangeIovaLast)
                     uIova = uRangeIovaLast + 1;