Changeset 41302 in vbox for trunk/src/VBox/VMM/VMMR0

Timestamp:

May 15, 2012 10:03:37 AM (13 years ago)

Author:

vboxsync

Message:

SVM: Do not intercept task switches with nested paging.

File:

• trunk/src/VBox/VMM/VMMR0/HWSVMR0.cpp (modified) (1 diff)

trunk/src/VBox/VMM/VMMR0/HWSVMR0.cpp

@@ -340 +340 @@
                                         | SVM_CTRL1_INTERCEPT_FERR_FREEZE;  /* Legacy FPU FERR handling. */
                                         ;
-        /* With nested paging we don't care about invlpg anymore. */
+        /* With nested paging we don't care about invlpg or task switches anymore. */
         if (pVM->hwaccm.s.fNestedPaging)
-            pVMCB->ctrl.u32InterceptCtrl1 &= ~SVM_CTRL1_INTERCEPT_INVLPG;
+            pVMCB->ctrl.u32InterceptCtrl1 &= ~(SVM_CTRL1_INTERCEPT_INVLPG | SVM_CTRL1_INTERCEPT_TASK_SWITCH);
 
         pVMCB->ctrl.u32InterceptCtrl2 =   SVM_CTRL2_INTERCEPT_VMRUN         /* required */