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Date: Thu, 14 Jan 2021 19:33:10 -0500 From: boris.ostrovsky@...cle.com To: Josh Poimboeuf <jpoimboe@...hat.com>, x86@...nel.org Cc: linux-kernel@...r.kernel.org, Peter Zijlstra <peterz@...radead.org>, Sami Tolvanen <samitolvanen@...gle.com>, Sedat Dilek <sedat.dilek@...il.com>, Kees Cook <keescook@...omium.org>, Nick Desaulniers <ndesaulniers@...gle.com>, clang-built-linux@...glegroups.com, Miroslav Benes <mbenes@...e.cz>, Juergen Gross <jgross@...e.com> Subject: Re: [PATCH 15/21] x86/xen/pvh: Convert indirect jump to retpoline On 1/14/21 2:40 PM, Josh Poimboeuf wrote: > It's kernel policy to not have (unannotated) indirect jumps because of > Spectre v2. This one's probably harmless, but better safe than sorry. > Convert it to a retpoline. > > Cc: Boris Ostrovsky <boris.ostrovsky@...cle.com> > Cc: Juergen Gross <jgross@...e.com> > Signed-off-by: Josh Poimboeuf <jpoimboe@...hat.com> Reviewed-by: Boris Ostrovsky <boris.ostrovsky@...cle.com>
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