Changeset 10355 in vbox for trunk/src/VBox/VMM

Timestamp:

Jul 8, 2008 11:19:56 AM (16 years ago)

Author:

vboxsync

Message:

TPR updates

File:

• trunk/src/VBox/VMM/VMMR0/HWVMXR0.cpp (modified) (2 diffs)

trunk/src/VBox/VMM/VMMR0/HWVMXR0.cpp

@@ -178 +178 @@
         ASMMemZero32(pVM->hwaccm.s.vmx.pAPIC, PAGE_SIZE);
     }
+    else
+    {
+        pVM->hwaccm.s.vmx.pMemObjAPIC = 0;
+        pVM->hwaccm.s.vmx.pAPIC       = 0;
+        pVM->hwaccm.s.vmx.pAPICPhys   = 0;
+    }
 
 #ifdef LOG_ENABLED
@@ -275 +281 @@
     val |= VMX_VMCS_CTRL_PROC_EXEC_CONTROLS_CR8_STORE_EXIT;
 
-    /* Exit on CR8 reads as well in case the TPR shadow feature isn't present. */
-    if (!(pVM->hwaccm.s.vmx.msr.vmx_proc_ctls & VMX_VMCS_CTRL_PROC_EXEC_CONTROLS_USE_TPR_SHADOW))
+    if (pVM->hwaccm.s.vmx.msr.vmx_proc_ctls & VMX_VMCS_CTRL_PROC_EXEC_CONTROLS_USE_TPR_SHADOW)
+    {
+        /* CR8 reads from the APIC shadow page */
+        val |= VMX_VMCS_CTRL_PROC_EXEC_CONTROLS_USE_TPR_SHADOW;
+    }
+    else
+        /* Exit on CR8 reads as well in case the TPR shadow feature isn't present. */
         val |= VMX_VMCS_CTRL_PROC_EXEC_CONTROLS_CR8_LOAD_EXIT;
 #endif