Changeset 14411 in vbox for trunk/src/recompiler/target-i386/helper.c

Timestamp:

Nov 20, 2008 1:26:47 PM (16 years ago)

Author:

vboxsync

Message:

RDTSCP support added. Enabled only for AMD-V guests.

File:

• trunk/src/recompiler/target-i386/helper.c (modified) (3 diffs)

trunk/src/recompiler/target-i386/helper.c

@@ -3023 +3023 @@
 }
 
+#ifdef VBOX
+void helper_rdtscp(void)
+{
+    uint64_t val;
+
+    if ((env->cr[4] & CR4_TSD_MASK) && ((env->hflags & HF_CPL_MASK) != 0)) {
+        raise_exception(EXCP0D_GPF);
+    }
+
+    val = cpu_get_tsc(env);
+    EAX = (uint32_t)(val);
+    EDX = (uint32_t)(val >> 32);
+    ECX = cpu_rdmsr(env, MSR_K8_TSC_AUX);
+}
+#endif
+
 #if defined(CONFIG_USER_ONLY)
 void helper_wrmsr(void)
@@ -3106 +3122 @@
         break;
     }
+    case MSR_K8_TSC_AUX:
+        cpu_wrmsr(env, MSR_K8_TSC_AUX, val);
+        break;
 #endif /* VBOX */
     }
@@ -3170 +3189 @@
         break;
     }
+    case MSR_K8_TSC_AUX:
+        val = cpu_rdmsr(env, MSR_K8_TSC_AUX);
+        break;
 #endif /* VBOX */
     }