union _INVPCID_DESCRIPTOR// Size=0x10
{
    struct <anonymous-tag> IndividualAddress;// Offset=0x0 Size=0x10
    struct <anonymous-tag> SingleContext;// Offset=0x0 Size=0x10
    struct <anonymous-tag> AllContextAndGlobals;// Offset=0x0 Size=0x10
    struct <anonymous-tag> AllContext;// Offset=0x0 Size=0x10
};