ucode_rev_to_cpuid
return ucode_rev_to_cpuid(mc->hdr.patch_id).full == bsp_cpuid_1_eax;
union cpuid_1_eax p_cid = ucode_rev_to_cpuid(p->patch_id);
union cpuid_1_eax n_cid = ucode_rev_to_cpuid(n->patch_id);