Changeset 106629 in vbox

Timestamp:

Oct 23, 2024 5:30:46 PM (5 weeks ago)

Author:

vboxsync

Message:

VMM/CPUMR0: bugref:10794 Fix CPUID call to determine presence of IA32_ARCH_CAPABILITIES MSR.

File:

• trunk/src/VBox/VMM/VMMR0/CPUMR0.cpp (modified) (1 diff)

trunk/src/VBox/VMM/VMMR0/CPUMR0.cpp

@@ -371 +371 @@
             && cStdRange >= 7)
         {
-            uint32_t fEdxFeatures = ASMCpuId_EDX(7);
+            uint32_t fEdxFeatures;
+            ASMCpuId_Idx_ECX(7, 0, &u32Dummy, &u32Dummy, &u32Dummy, &fEdxFeatures);
             if (   (fEdxFeatures & X86_CPUID_STEXT_FEATURE_EDX_ARCHCAP)
                 && (fFeatures & X86_CPUID_FEATURE_EDX_MSR))