Changeset 69184 in vbox for trunk/src/VBox/VMM

Timestamp:

Oct 24, 2017 5:43:16 AM (7 years ago)

Author:

vboxsync

Message:

VMM/HMSVMR0: Nested Hw.virt: Fixed a bug while masking the address size bits in hmR0SvmIsIoInterceptActive.

File:

• trunk/src/VBox/VMM/VMMR0/HMSVMR0.cpp (modified) (1 diff)

trunk/src/VBox/VMM/VMMR0/HMSVMR0.cpp

@@ -4551 +4551 @@
     const SVMIOIOTYPE enmIoType     = (SVMIOIOTYPE)pIoExitInfo->n.u1Type;
     const uint8_t     cbReg         = (pIoExitInfo->u >> SVM_IOIO_OP_SIZE_SHIFT) & 7;
-    const uint8_t     cAddrSizeBits = (pIoExitInfo->u >> SVM_IOIO_ADDR_SIZE_SHIFT) << 4;
+    const uint8_t     cAddrSizeBits = ((pIoExitInfo->u >> SVM_IOIO_ADDR_SIZE_SHIFT) & 7) << 4;
     const uint8_t     iEffSeg       = pIoExitInfo->n.u3SEG;
     const bool        fRep          = pIoExitInfo->n.u1REP;