Changeset 72421 in vbox for trunk/src/VBox/VMM

Timestamp:

Jun 4, 2018 6:09:41 AM (7 years ago)

Author:

vboxsync

Message:

VMM/IEM: Nested hw.virt: Comment and doxygen.

File:

• trunk/src/VBox/VMM/VMMAll/IEMAllCImplSvmInstr.cpp.h (modified) (3 diffs)

trunk/src/VBox/VMM/VMMAll/IEMAllCImplSvmInstr.cpp.h

@@ -793 +793 @@
             LogFlow(("iemSvmVmrun: Injecting event: %04x:%08RX64 vec=%#x type=%d uErr=%u cr2=%#RX64 cr3=%#RX64 efer=%#RX64\n",
                      pCtx->cs.Sel, pCtx->rip, uVector, enmType, uErrorCode, pCtx->cr2, pCtx->cr3, pCtx->msrEFER));
-#if 0
-            rcStrict = IEMInjectTrap(pVCpu, uVector, enmType, uErrorCode, pCtx->cr2, 0 /* cbInstr */);
-#else
+
+            /*
+             * We shall not inject the event here right away. There may be paging mode related updates
+             * as a result of the world-switch above that are yet to be honored. Instead flag the event
+             * as pending for injection.
+             */
             TRPMAssertTrap(pVCpu, uVector, enmType);
             if (pEventInject->n.u1ErrorCodeValid)
@@ -802 +805 @@
                 && uVector == X86_XCPT_PF)
                 TRPMSetFaultAddress(pVCpu, pCtx->cr2);
-#endif
         }
         else
@@ -838 +840 @@
  *
  * @returns VBox strict status code.
- * @param   pVCpu           The cross context virtual CPU structure of the calling thread.
- * @param   u16Port         The IO port being accessed.
- * @param   enmIoType       The type of IO access.
- * @param   cbReg           The IO operand size in bytes.
- * @param   cAddrSizeBits   The address size bits (for 16, 32 or 64).
- * @param   iEffSeg         The effective segment number.
- * @param   fRep            Whether this is a repeating IO instruction (REP prefix).
- * @param   fStrIo          Whether this is a string IO instruction.
+ * @param   pVCpu       The cross context virtual CPU structure of the calling thread.
+ * @param   pCtx        Pointer to the guest-CPU context.
+ * @param   u8Vector    The interrupt or exception vector.
+ * @param   fFlags      The exception flags (see IEM_XCPT_FLAGS_XXX).
+ * @param   uErr        The error-code associated with the exception.
+ * @param   uCr2        The CR2 value in case of a \#PF exception.
  */
 IEM_STATIC VBOXSTRICTRC iemHandleSvmEventIntercept(PVMCPU pVCpu, PCPUMCTX pCtx, uint8_t u8Vector, uint32_t fFlags, uint32_t uErr,