Messages in this thread | | | Date | Fri, 19 Nov 2021 09:10:48 -0800 | From | Kees Cook <> | Subject | Re: [PATCH 2/3] x86: Use -mindirect-branch-cs-prefix for RETPOLINE builds |
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On Fri, Nov 19, 2021 at 05:50:25PM +0100, Peter Zijlstra wrote: > In order to further enable commit: > > bbe2df3f6b6d ("x86/alternative: Try inline spectre_v2=retpoline,amd") > > add the new GCC flag -mindirect-branch-cs-prefix: > > https://gcc.gnu.org/g:2196a681d7810ad8b227bf983f38ba716620545e > https://gcc.gnu.org/bugzilla/show_bug.cgi?id=102952 > https://bugs.llvm.org/show_bug.cgi?id=52323 > > to RETPOLINE=y builds. This should allow fully inlining retpoline,amd > for GCC builds. > > Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Kees Cook <keescook@chromium.org>
-- Kees Cook
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