Changeset 9988 in vbox

Timestamp:

Jun 27, 2008 11:17:47 AM (17 years ago)

Author:

vboxsync

Message:

Unconditionally update the sysenter msrs.

Location:

trunk/src/VBox/VMM/VMMR0

Files:

• HWSVMR0.cpp (modified) (1 diff)
• HWVMXR0.cpp (modified) (1 diff)

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

@@ -570 +570 @@
 
     /*
-     * Sysenter MSRs
+     * Sysenter MSRs (unconditional)
      */
-    if (pVM->hwaccm.s.fContextUseFlags & HWACCM_CHANGED_GUEST_SYSENTER_MSR)
-    {
-        pVMCB->guest.u64SysEnterCS  = pCtx->SysEnter.cs;
-        pVMCB->guest.u64SysEnterEIP = pCtx->SysEnter.eip;
-        pVMCB->guest.u64SysEnterESP = pCtx->SysEnter.esp;
-    }
+    pVMCB->guest.u64SysEnterCS  = pCtx->SysEnter.cs;
+    pVMCB->guest.u64SysEnterEIP = pCtx->SysEnter.eip;
+    pVMCB->guest.u64SysEnterESP = pCtx->SysEnter.esp;
 
     /* Control registers */

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

@@ -753 +753 @@
 
     /*
-     * Sysenter MSRs
+     * Sysenter MSRs (unconditional)
      */
-    if (pVM->hwaccm.s.fContextUseFlags & HWACCM_CHANGED_GUEST_SYSENTER_MSR)
-    {
-        rc  = VMXWriteVMCS(VMX_VMCS_GUEST_SYSENTER_CS,      pCtx->SysEnter.cs);
-        rc |= VMXWriteVMCS(VMX_VMCS_GUEST_SYSENTER_EIP,     pCtx->SysEnter.eip);
-        rc |= VMXWriteVMCS(VMX_VMCS_GUEST_SYSENTER_ESP,     pCtx->SysEnter.esp);
-        AssertRC(rc);
-    }
+    rc  = VMXWriteVMCS(VMX_VMCS_GUEST_SYSENTER_CS,      pCtx->SysEnter.cs);
+    rc |= VMXWriteVMCS(VMX_VMCS_GUEST_SYSENTER_EIP,     pCtx->SysEnter.eip);
+    rc |= VMXWriteVMCS(VMX_VMCS_GUEST_SYSENTER_ESP,     pCtx->SysEnter.esp);
+    AssertRC(rc);
 
     /* Control registers */