Changeset 24753 in vbox for trunk/src/VBox

Timestamp:

Nov 18, 2009 11:22:09 AM (15 years ago)

Author:

vboxsync

Message:

VMM: simple MSR_IA32_PERF_STATUS implementation, watch for regression (yet unlikely, as was completely broken before)

Location:

trunk/src/VBox/VMM/VMMAll

Files:

• CPUMAllRegs.cpp (modified) (1 diff)
• EMAll.cpp (modified) (1 diff)

trunk/src/VBox/VMM/VMMAll/CPUMAllRegs.cpp

@@ -787 +787 @@
             break;
 
+        case MSR_IA32_PERF_STATUS:
+            /** @todo: could really be not exactly correct, maybe use host's values */
+            u64 =     (1000ULL                /* TSC increment by tick */)
+                    | (((uint64_t)4ULL) << 40 /* CPU multiplier */       );
+            break;
+
         /* fs & gs base skipped on purpose as the current context might not be up-to-date. */
         default:

trunk/src/VBox/VMM/VMMAll/EMAll.cpp

@@ -2813 +2813 @@
         return "Unsupported MSR_IA32_PERFEVTSEL1";
     case MSR_IA32_PERF_STATUS:
-        return "Unsupported MSR_IA32_PERF_STATUS";
+        return "MSR_IA32_PERF_STATUS";
     case MSR_IA32_PERF_CTL:
         return "Unsupported MSR_IA32_PERF_CTL";