diff --git a/src/igvm/igvmfile.py b/src/igvm/igvmfile.py
index 31b41fe..c46d435 100644
--- a/src/igvm/igvmfile.py
+++ b/src/igvm/igvmfile.py
@@ -499,6 +499,8 @@ def cpuid_page(self) -> HV_PSP_CPUID_PAGE:
                         (CpuIdFunctionExtendedStateEnumeration, 6),
                         (CpuIdFunctionExtendedStateEnumeration, 7),
                         (CpuIdFunctionExtendedStateEnumeration, 8),
+                        (CpuIdFunctionExtendedStateEnumeration, 11),
+                        (CpuIdFunctionExtendedStateEnumeration, 12),
                         (CpuIdFunctionExtendedBrandingString1, 0),
                         (CpuIdFunctionExtendedBrandingString2, 0),
                         (CpuIdFunctionExtendedBrandingString3, 0),