Received: by 2002:a05:6a10:a841:0:0:0:0 with SMTP id d1csp1963559pxy; Thu, 29 Apr 2021 19:58:11 -0700 (PDT) X-Google-Smtp-Source: ABdhPJzGu5qARteJW4Bkxc247UUFRHLTIiRG70X8K2GViqAzhBO8i+3QpRreARo3h3pJ119qXXDD X-Received: by 2002:a17:902:c3ca:b029:ea:fc69:b6ed with SMTP id j10-20020a170902c3cab02900eafc69b6edmr2904955plj.80.1619751490990; Thu, 29 Apr 2021 19:58:10 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1619751490; cv=none; d=google.com; s=arc-20160816; b=r2Djl8Jk86v8L7N7KHVRmV/S1bE1kb4D5zM48iNYlXPFiWotqQT69hu40r5Mp1PHEL QcqfA1XOocdiVLaobZvAksYptR+63gi0Rgccdsc4F6vpachEhIDOwPEyn93y8gKgZBSm SQYiaMDaQEdpUuJNKihfHJfQ607AjvvZ2qbHsXBh1u/e1ZUd3s8ExVUQz0Y/eIjlQjwt Qm5bIi9w3vBaJjEQkoE+GfdfT9da9PtgurJ7rAHiSqPu/FpQWUmhfhvJsx/uX3KBbWEq M/O6uDnonqzlQ1CFOwawBYvk8ldhg3aTKNhuTh23DC2hF6TnLZe+PEqGUOhdbPvqrlZB Cbdw== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:cc:to:subject:message-id:date:from:in-reply-to :references:mime-version:dkim-signature; bh=glOkDPvaVe3HL+R51noq4zWPvsimsVVd6SRQNZVquXE=; b=i8jM6pTI/XJaTL5Ayd88hte/557lM7lb8hQ/lrkrUFyW04xhuKgJhVE0VmPw5ddx+W xxAoMS11M6kMYAZPs66M3g7ap5jIFI+tDHeLCjbHlrXQdu+ScWTniHdXR8SGbADn+kKv wm1JxUwwdLTbrT6Vsx2QA5ZExdBHm+LH1BXwmB57E001tTG5iQm3T48VFXDt5X1VY3w0 ZtBy61PpIxnFel1oWmB8/ublxDF2AwEkvXpZwaJl12aL1278nH0JLp7l/3jvSRDMvRin rdVIkOvq+n6J6iw2Do3hyDROvhyT5Z5QYM11YEnhvShXXhsAD4PLkgfpiPAfJGKwD3WZ y7Nw== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@gmail.com header.s=20161025 header.b=p17DtaT4; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=QUARANTINE dis=NONE) header.from=gmail.com Return-Path: Received: from vger.kernel.org (vger.kernel.org. [23.128.96.18]) by mx.google.com with ESMTP id 16si547206pjg.121.2021.04.29.19.57.56; Thu, 29 Apr 2021 19:58:10 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18; Authentication-Results: mx.google.com; dkim=pass header.i=@gmail.com header.s=20161025 header.b=p17DtaT4; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=QUARANTINE dis=NONE) header.from=gmail.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229708AbhD3C5U (ORCPT + 99 others); Thu, 29 Apr 2021 22:57:20 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:35906 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229577AbhD3C5T (ORCPT ); Thu, 29 Apr 2021 22:57:19 -0400 Received: from mail-il1-x136.google.com (mail-il1-x136.google.com [IPv6:2607:f8b0:4864:20::136]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 9D79FC06138B; Thu, 29 Apr 2021 19:56:26 -0700 (PDT) Received: by mail-il1-x136.google.com with SMTP id i22so3070543ila.11; Thu, 29 Apr 2021 19:56:26 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc; bh=glOkDPvaVe3HL+R51noq4zWPvsimsVVd6SRQNZVquXE=; b=p17DtaT4YWPXkXLWjB9OpGfwnH8gWdzixFynXody6DLvworbFhc+KrauMjdhW1XV0n lhIs6sObFXzBiY05am3Lttj6/t3N+nSH91KGjN0wNi6rB4CMN8PdEpfqea5v7szCjzZA q+Xym89mrRhS2IjCayVRvOtqT4LhydNqViEk7jvjrKBTrEYLGbxa5A1PBNGPCiTfrkcL YXPad0M3pzzW2kyV9UvSiGCSAMUGn/MFewsFWYpMUS75ctP1q1j/1lCwLox/gqBfv4LA HtANgXoMnAmtO/slgIWq8/bZomgzodOVCg6JtlAoP4X7LNN9pGJez86n18AbnLyxxKiZ 2FVQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc; bh=glOkDPvaVe3HL+R51noq4zWPvsimsVVd6SRQNZVquXE=; b=mMPp/RYXpcLgJfAHltAKZjwoERbBCgFgEOudcibYEYdlLUR0317RHFCoVA+IYGTqtp M+kgJ32daLLAFJmcgQdS6HOlnKKDdumWJIWez50oaLpED8hvrCBmuqE3Ns3BIcugBeVi 9DepW81cN5KNyi2LyoZWJa+Vi1V4QluWneQRJSfEYpoK0jGSmH0DpOUCx20DQGQinSOO byIYe4m3tHUi2KWDlR7zEFpwHr3W1aug4wH03kM6RK7poqt6BHFfuvAq8c/U8OSzOjcm TOQ/VJ7gaOdUzLlw2svsBvOK4pGGj7HexDYdARTGMs1RXypZYxv06Zh3i5zjnlCdU5b9 iwSw== X-Gm-Message-State: AOAM533kpbrrqM3OWeDjsq+Mzh6XCM3GBOE71uXUZZDU+cb/KtIujtfH n3ELZWqtHPY0/5thwo3LmVhQArCpFnnJ5V3jF98= X-Received: by 2002:a05:6e02:1d16:: with SMTP id i22mr2264430ila.164.1619751386194; Thu, 29 Apr 2021 19:56:26 -0700 (PDT) MIME-Version: 1.0 References: <20200915191505.10355-1-sean.j.christopherson@intel.com> <20200915191505.10355-3-sean.j.christopherson@intel.com> <2fd450a9-0f59-8d88-d4bc-431245f3b565@redhat.com> In-Reply-To: <2fd450a9-0f59-8d88-d4bc-431245f3b565@redhat.com> From: Lai Jiangshan Date: Fri, 30 Apr 2021 10:56:15 +0800 Message-ID: Subject: Re: [PATCH v2 2/2] KVM: VMX: Invoke NMI handler via indirect call instead of INTn To: Paolo Bonzini Cc: Vitaly Kuznetsov , Wanpeng Li , Jim Mattson , Joerg Roedel , kvm@vger.kernel.org, LKML , Josh Poimboeuf , Uros Bizjak , Andi Kleen , Andy Lutomirski , Steven Rostedt , Sean Christopherson , Maxim Levitsky , Lai Jiangshan Content-Type: text/plain; charset="UTF-8" Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Tue, Apr 27, 2021 at 3:05 PM Paolo Bonzini wrote: > > On 27/04/21 02:54, Lai Jiangshan wrote: > > The C NMI handler can handle the case of nested NMIs, which is useful > > here. I think we should change it to call the C NMI handler directly > > here as Andy Lutomirski suggested: > > Great, can you send a patch? > Hello, I sent it several days ago, could you have a review please, and then I will update the patchset with feedbacks applied. And thanks Steven for the reviews. https://lore.kernel.org/lkml/20210426230949.3561-4-jiangshanlai@gmail.com/ thanks Lai