X86_BUG_SMT_RSB
setup_force_cpu_bug(X86_BUG_SMT_RSB);
mitigate_smt_rsb &= boot_cpu_has_bug(X86_BUG_SMT_RSB) && cpu_smt_possible();
if (!mitigate_smt_rsb && boot_cpu_has_bug(X86_BUG_SMT_RSB) &&