From 08a068a161bbf77d5c985c57337c6b3321a92d16 Mon Sep 17 00:00:00 2001
From: Stanislav Shwartsman <sshwarts@users.sourceforge.net>
Date: Thu, 11 Mar 2021 21:19:45 +0000
Subject: [PATCH] fixed SVM V_TPR handling SF bug #1428 AMD SVM Hyper-V fails

---
 bochs/cpu/crregs.cc | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/bochs/cpu/crregs.cc b/bochs/cpu/crregs.cc
index 46cf6dcfe..188e7da5f 100644
--- a/bochs/cpu/crregs.cc
+++ b/bochs/cpu/crregs.cc
@@ -1459,7 +1459,7 @@ void BX_CPU_C::WriteCR8(bxInstruction_c *i, bx_address val)
 
 #if BX_SUPPORT_SVM
   if (BX_CPU_THIS_PTR in_svm_guest) {
-    SVM_V_TPR = tpr;
+    SVM_V_TPR = tpr >> 4;   // V_TPR just matching CR8[3:0]
     handleInterruptMaskChange();
     if (SVM_V_INTR_MASKING) return;
   }