From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-1.3 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, URIBL_BLOCKED autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 3D662C433E0 for ; Thu, 14 May 2020 04:49:00 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 1D2DE20575 for ; Thu, 14 May 2020 04:49:00 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1589431740; bh=LNBsN7Ecdx0UyTB8fDhHuSBj0TN5gw7/I+WdErk8vyE=; h=References:In-Reply-To:From:Date:Subject:To:Cc:List-ID:From; b=lGuA/kdi4i/bc4NDuuaNkOeFLp2s+40GnOxbT3O0iDxRvtsjsFW6g90Aa6pvLgG2W bbHrt+jZaKio5aj9BzfhhQ24I6zMziV9fQbAC4A7WWLViHJXldZxa5U+CZx+U5ZakQ Ofivdy/waTn1f4r8OAC69CjIAyamWzasmkyENino= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726060AbgENEs7 (ORCPT ); Thu, 14 May 2020 00:48:59 -0400 Received: from mail.kernel.org ([198.145.29.99]:35896 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725794AbgENEs6 (ORCPT ); Thu, 14 May 2020 00:48:58 -0400 Received: from mail-wr1-f54.google.com (mail-wr1-f54.google.com [209.85.221.54]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 4F3CC2070A for ; Thu, 14 May 2020 04:48:58 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1589431738; bh=LNBsN7Ecdx0UyTB8fDhHuSBj0TN5gw7/I+WdErk8vyE=; h=References:In-Reply-To:From:Date:Subject:To:Cc:From; b=0CKHIcqUtnyRvwxtaj8oWozZK68ZTx/nlkgMSIIV83hjuHnArBv3gZHKy5aqcKdwj O9ZDym1tcHQOaaN6a/BNnNOZ1kgelqnOSISTbE+n/qjlx5B02H2fl31G5IH74v9H0T 0D3tb0wpac1yUtRpYSKZwB5hhdgZDSXz9+hrCl4U= Received: by mail-wr1-f54.google.com with SMTP id l11so2154194wru.0 for ; Wed, 13 May 2020 21:48:58 -0700 (PDT) X-Gm-Message-State: AOAM532FzX8r8D54omoQwfq1u29/FFnjOAlkH/ktEjwOue5Y0ZL3YG5F 8Pxd1rft25ePxfI/2ljZ6E9CGuC7wdoirNKvOB6dWQ== X-Google-Smtp-Source: ABdhPJxFkndUlYze1b7aTzWc8V6R25U0KTfGc7p9kbRlGbnIQOEo8BSAa3tei0jJzFwF7fLcu/bVMXCN3tko0DvX+Ds= X-Received: by 2002:adf:f446:: with SMTP id f6mr3036373wrp.75.1589431736693; Wed, 13 May 2020 21:48:56 -0700 (PDT) MIME-Version: 1.0 References: <20200505134354.774943181@linutronix.de> <20200505134905.350676449@linutronix.de> In-Reply-To: <20200505134905.350676449@linutronix.de> From: Andy Lutomirski Date: Wed, 13 May 2020 21:48:45 -0700 X-Gmail-Original-Message-ID: Message-ID: Subject: Re: [patch V4 part 3 21/29] x86/entry: Convert Invalid TSS exception to IDTENTRY To: Thomas Gleixner Cc: LKML , X86 ML , "Paul E. McKenney" , Andy Lutomirski , Alexandre Chartre , Frederic Weisbecker , Paolo Bonzini , Sean Christopherson , Masami Hiramatsu , Petr Mladek , Steven Rostedt , Joel Fernandes , Boris Ostrovsky , Juergen Gross , Brian Gerst , Mathieu Desnoyers , Josh Poimboeuf , Will Deacon Content-Type: text/plain; charset="UTF-8" Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Tue, May 5, 2020 at 7:15 AM Thomas Gleixner wrote: > > From: Thomas Gleixner > > Convert #TS to IDTENTRY_ERRORCODE: > - Implement the C entry point with DEFINE_IDTENTRY > - Emit the ASM stub with DECLARE_IDTENTRY > - Remove the ASM idtentry in 64bit > - Remove the open coded ASM entry code in 32bit > - Fixup the XEN/PV code > - Remove the old prototyoes > > No functional change. I confess that I'm a bit mystified as to why we have all the machinery in place to send a signal if #TS happens. Whatever. Acked-by: Andy Lutomirski