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Date:   Wed, 9 Mar 2022 02:02:20 +0100
From:   Peter Zijlstra <peterz@infradead.org>
To:     Alexei Starovoitov <alexei.starovoitov@gmail.com>
Cc:     x86@kernel.org, joao@overdrivepizza.com, hjl.tools@gmail.com,
        jpoimboe@redhat.com, andrew.cooper3@citrix.com,
        linux-kernel@vger.kernel.org, ndesaulniers@google.com,
        keescook@chromium.org, samitolvanen@google.com,
        mark.rutland@arm.com, alyssa.milburn@intel.com, mbenes@suse.cz,
        rostedt@goodmis.org, mhiramat@kernel.org, daniel@iogearbox.net,
        andrii@kernel.org, bpf@vger.kernel.org
Subject: Re: [PATCH v4 00/45] x86: Kernel IBT
Message-ID: <Yif8nO2xg6QnVQfD@hirez.programming.kicks-ass.net>
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On Tue, Mar 08, 2022 at 11:32:37PM +0100, Peter Zijlstra wrote:
> On Tue, Mar 08, 2022 at 11:01:04PM +0100, Peter Zijlstra wrote:
> > On Tue, Mar 08, 2022 at 12:00:52PM -0800, Alexei Starovoitov wrote:
> > > On Tue, Mar 08, 2022 at 04:30:11PM +0100, Peter Zijlstra wrote:
> > > > Hopefully last posting...
> > > > 
> > > > Since last time:
> > > > 
> > > >  - updated the ftrace_location() patch (naveen, rostedt)
> > > >  - added a few comments and clarifications (bpetkov)
> > > >  - disable jump-tables (joao)
> > > >  - verified clang-14-rc2 works
> > > >  - fixed a whole bunch of objtool unreachable insn issue
> > > >  - picked up a few more tags
> > > > 
> > > > Patches go on top of tip/master + arm64/for-next/linkage. Also available here:
> > > > 
> > > >   git://git.kernel.org/pub/scm/linux/kernel/git/peterz/queue.git x86/wip.ibt
> > > 
> > > I've tried to test it.
> > 
> > I could cleanly do:
> > 
> > git checkout tip/master
> > git merge bpf-next/master
> > git merge queue/x86/wip.ibt
> > 
> > You want me to push out that result somewhere?
> 
>   git://git.kernel.org/pub/scm/linux/kernel/git/peterz/queue.git x86/ibt
> 
> includes bpf-next/master.

I just managed to run bpf selftests with that kernel on a tigerlake
platform.  Seems to still work.