Changeset 95609 in vbox for trunk/src/VBox/Devices/VirtIO

Timestamp:

Jul 12, 2022 8:28:41 PM (2 years ago)

Author:

vboxsync

Message:

Devices/DevVirtioNet_1_0: Fix legacy 32-bit guest compatibility. bugref:8651

File:

• trunk/src/VBox/Devices/VirtIO/VirtioCore.cpp (modified) (1 diff)

trunk/src/VBox/Devices/VirtIO/VirtioCore.cpp

@@ -1736 +1736 @@
                 pVirtio->uDriverFeatures &= VIRTIO_DEV_INDEPENDENT_LEGACY_FEATURES_OFFERED;
         }
-        if (!((pVirtio->fDriverFeaturesWritten ^= 1) & 1))
+        if (!(pVirtio->fDriverFeaturesWritten & DRIVER_FEATURES_COMPLETE_HANDLED))
         {
 #ifdef IN_RING0
             Log6(("%-23s: RING0 => RING3 (demote)\n", __FUNCTION__));
-            return VINF_IOM_R3_MMIO_WRITE;
+            return VINF_IOM_R3_IOPORT_WRITE;
 #endif
 #ifdef IN_RING3