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From: Peter Zijlstra <peterz@infradead.org>
To: Josh Poimboeuf <jpoimboe@redhat.com>
Cc: seanjc@google.com, pbonzini@redhat.com, tglx@linutronix.de,
	linux-kernel@vger.kernel.org, x86@kernel.org,
	kvm@vger.kernel.org, jthoughton@google.com
Subject: Re: [PATCH v2 03/12] objtool: Convert ANNOTATE_RETPOLINE_SAFE to ANNOTATE
Date: Sat, 16 Nov 2024 10:34:28 +0100	[thread overview]
Message-ID: <20241116093428.GH22801@noisy.programming.kicks-ass.net> (raw)
In-Reply-To: <20241115183936.bbval2orosqrj5ww@jpoimboe>

On Fri, Nov 15, 2024 at 10:39:36AM -0800, Josh Poimboeuf wrote:
> On Mon, Nov 11, 2024 at 12:59:38PM +0100, Peter Zijlstra wrote:
> > 
> > Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
> > ---
> >  arch/x86/include/asm/nospec-branch.h |   13 +-------
> >  include/linux/objtool_types.h        |    1 
> >  tools/include/linux/objtool_types.h  |    1 
> >  tools/objtool/check.c                |   52 ++++++++++++-----------------------
> >  4 files changed, 22 insertions(+), 45 deletions(-)
> > 
> > --- a/arch/x86/include/asm/nospec-branch.h
> > +++ b/arch/x86/include/asm/nospec-branch.h
> > @@ -193,12 +193,7 @@
> >   * objtool the subsequent indirect jump/call is vouched safe for retpoline
> >   * builds.
> >   */
> > -.macro ANNOTATE_RETPOLINE_SAFE
> > -.Lhere_\@:
> > -	.pushsection .discard.retpoline_safe
> > -	.long .Lhere_\@
> > -	.popsection
> > -.endm
> > +#define ANNOTATE_RETPOLINE_SAFE	ANNOTATE type=ANNOTYPE_RETPOLINE_SAFE
> 
> I'm thinking it would be nice to put all the ANNOTATE_* definitions
> in objtool.h so we can have all the annotations and their descriptions
> in one place.

Probably, but that's going to be somewhat of a pain. Let me do that at
the end and throw it at an allyesconfig or something.

  reply	other threads:[~2024-11-16  9:34 UTC|newest]

Thread overview: 38+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-11-11 11:59 [PATCH v2 00/12] x86/kvm/emulate: Avoid RET for FASTOPs Peter Zijlstra
2024-11-11 11:59 ` [PATCH v2 01/12] objtool: Generic annotation infrastructure Peter Zijlstra
2024-11-15 18:38   ` Josh Poimboeuf
2024-11-16  9:33     ` Peter Zijlstra
2024-11-20  0:31       ` Josh Poimboeuf
2024-11-20  1:04         ` Josh Poimboeuf
2024-11-20  8:52           ` Peter Zijlstra
2024-11-20 16:03             ` Josh Poimboeuf
2024-11-20 16:03               ` Josh Poimboeuf
2024-11-21 11:46                 ` Peter Zijlstra
2024-11-11 11:59 ` [PATCH v2 02/12] objtool: Convert ANNOTATE_NOENDBR to ANNOTATE Peter Zijlstra
2024-11-11 11:59 ` [PATCH v2 03/12] objtool: Convert ANNOTATE_RETPOLINE_SAFE " Peter Zijlstra
2024-11-15 18:39   ` Josh Poimboeuf
2024-11-16  9:34     ` Peter Zijlstra [this message]
2024-11-11 11:59 ` [PATCH v2 04/12] objtool: Convert instrumentation_{begin,end}() " Peter Zijlstra
2024-11-15 18:40   ` Josh Poimboeuf
2024-11-16  9:36     ` Peter Zijlstra
2024-11-16  9:51       ` Peter Zijlstra
2024-11-16 10:06     ` Peter Zijlstra
2024-11-11 11:59 ` [PATCH v2 05/12] objtool: Convert VALIDATE_UNRET_BEGIN " Peter Zijlstra
2024-11-11 11:59 ` [PATCH v2 06/12] objtool: Convert ANNOTATE_IGNORE_ALTERNATIVE " Peter Zijlstra
2024-11-11 11:59 ` [PATCH v2 07/12] objtool: Convert ANNOTATE_INTRA_FUNCTION_CALLS " Peter Zijlstra
2024-11-15 18:40   ` Josh Poimboeuf
2024-11-16  9:37     ` Peter Zijlstra
2024-11-11 11:59 ` [PATCH v2 08/12] objtool: Collapse annotate sequences Peter Zijlstra
2024-11-11 11:59 ` [PATCH v2 09/12] x86/nospec: JMP_NOSPEC Peter Zijlstra
2024-11-11 11:59 ` [PATCH v2 10/12] x86,nospec: Simplify {JMP,CALL}_NOSPEC (part 2) Peter Zijlstra
2024-11-15 18:40   ` Josh Poimboeuf
2024-11-16  9:39     ` Peter Zijlstra
2024-11-11 11:59 ` [PATCH v2 11/12] x86/kvm/emulate: Implement test_cc() in C Peter Zijlstra
2024-11-11 17:13   ` Sean Christopherson
2024-11-11 11:59 ` [PATCH v2 12/12] x86/kvm/emulate: Avoid RET for fastops Peter Zijlstra
2024-11-11 16:27   ` Peter Zijlstra
2024-11-11 17:26   ` Sean Christopherson
2024-11-11 18:28     ` Peter Zijlstra
2024-11-15 18:41   ` Josh Poimboeuf
2024-11-16  9:39     ` Peter Zijlstra
2024-11-11 17:27 ` [PATCH v2 00/12] x86/kvm/emulate: Avoid RET for FASTOPs Sean Christopherson

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