Changeset 61626 in vbox for trunk/src/VBox/VMM/VMMR0

Timestamp:

Jun 9, 2016 5:31:52 PM (9 years ago)

Author:

vboxsync

Message:

VMX: PGMTrap0eHandler can emulate many interesting things; consider CPU state modified.

File:

• trunk/src/VBox/VMM/VMMR0/HMVMXR0.cpp (modified) (2 diffs)

trunk/src/VBox/VMM/VMMR0/HMVMXR0.cpp

@@ -13424 +13424 @@
     if (rc == VINF_SUCCESS)
     {
+#if 0
         /* Successfully synced shadow pages tables or emulated an MMIO instruction. */
         /** @todo this isn't quite right, what if guest does lgdt with some MMIO
@@ -13431 +13432 @@
                             | HM_CHANGED_GUEST_RFLAGS
                             | HM_CHANGED_VMX_GUEST_APIC_STATE);
+#else
+        /* This is typically a shadow page table sync or a MMIO instruction. But we
+        /* may have emulated something like LTR or a far jump. Any part of the CPU
+         * context may have changed.
+         */
+        /** @todo take advantage of CPUM changed flags instead of brute forcing. */
+        HMCPU_CF_SET(pVCpu, HM_CHANGED_ALL_GUEST);
+#endif
         TRPMResetTrap(pVCpu);
         STAM_COUNTER_INC(&pVCpu->hm.s.StatExitShadowPF);