On 22.02.2022 16:26, Andrew Cooper wrote: > --- a/xen/arch/x86/Kconfig > +++ b/xen/arch/x86/Kconfig > @@ -40,6 +40,11 @@ config HAS_AS_CET_SS > # binutils >= 2.29 or LLVM >= 6 > def_bool $(as-instr,wrssq %rax$(comma)0;setssbsy) > > +config HAS_CC_CET_IBT > + # GCC >= 9 and binutils >= 2.29 > + # Retpoline check to work around > https://gcc.gnu.org/bugzilla/show_bug.cgi?id=93654 > + def_bool $(cc-option,-fcf-protection=branch -mmanual-endbr > -mindirect-branch=thunk-extern) && $(as-instr,endbr64)
Noticed only now: Since the commit message doesn't say anything either way, was it intentional for this to differ from XEN_SHSTK in the EXPERT dependency? Jan
