Received: by 2002:a25:4158:0:0:0:0:0 with SMTP id o85csp5449303yba; Mon, 13 May 2019 11:01:24 -0700 (PDT) X-Google-Smtp-Source: APXvYqwDT68UXWSn3Ms6pwiN0F12HaPbF08s/cPTpPfFOXt3cPjcxfxnrlA+wPEADB8xdJutwbbI X-Received: by 2002:a17:902:f24:: with SMTP id 33mr32455476ply.33.1557770484638; Mon, 13 May 2019 11:01:24 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1557770484; cv=none; d=google.com; s=arc-20160816; b=x7ySEL8wIqBJajw8qpzYAmNu86wPIWyA1AhucB2LAAFYJow++twtctvsByuR3Zjcmt 10yMv8AOpCceGHE/iX9XFPNMBebsvz5YmolzNh1seF2TREAfoLyMXMrIEcV6sDj1xxfk iAYilslbULLZbUWfVSGzOj67rhw7EulKeDFjgPJL2vcTumTp5x4n9qErpTILXbV9GiHc rWB1SooKbZGIeq1MbOZC+T3xYgo+iToJoOG7hfenbHtagQAfmxC5oLhkqezoQL5loBHr Z0P43/8WjrE1E8mDWVeMbGfNdTFVK1cR2Kf8mTVCzSCQjvRqiQRUHIu/ZAqD5b9E5suG 7M8g== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:cc:to:subject:message-id:date:from :in-reply-to:references:mime-version:dkim-signature; bh=XCFW2567l4uQbqfc/zUYfmUqYDzBJxGpqdyPIiW/FkY=; b=f61Qhi63UF4RFHKfEin3OoeT2d6p9S7cxhTmPLY3pH3di+dRtoMwGSpBekfvw6WYY7 zLtKNGDWwKMPwJmRf7JXx5xMZdjRvND1TbkKtb/W64sflh5rKvZzdX1QbCdAF4XkEq44 bLMSwYN40ERETCs0PHYb6tYuAZzienwLtveDh/aiVoxdNuwN6aRyf3AolFAoP2meDaAo r8Nj3CevY3gC4aaBCVh8R6ZQIephD8KG/Rw0GgMTeaDcMlRfHShKyApe0W4tJf0DwzuJ z8cSBpgAsBoDmuOY1I2BxK2tyoZlAtuG7XtW2LgCMh5N4OiJlVYG1qRte4dLJRfD3tnw rbDQ== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@kernel.org header.s=default header.b=rp9du5MO; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=kernel.org Return-Path: Received: from vger.kernel.org (vger.kernel.org. [209.132.180.67]) by mx.google.com with ESMTP id m1si18655796pgt.93.2019.05.13.11.01.08; Mon, 13 May 2019 11:01:24 -0700 (PDT) Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; dkim=pass header.i=@kernel.org header.s=default header.b=rp9du5MO; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729360AbfEMPtV (ORCPT + 99 others); Mon, 13 May 2019 11:49:21 -0400 Received: from mail.kernel.org ([198.145.29.99]:35884 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726814AbfEMPtU (ORCPT ); Mon, 13 May 2019 11:49:20 -0400 Received: from mail-wm1-f42.google.com (mail-wm1-f42.google.com [209.85.128.42]) (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 0CF752168B for ; Mon, 13 May 2019 15:49:20 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1557762560; bh=iu0DvAJjkMh0MqQjI1Y4OdDJERot1b1WNhATGWADuGY=; h=References:In-Reply-To:From:Date:Subject:To:Cc:From; b=rp9du5MO21nSayjZvEV1P+McQzueie510+aXWIwZDusr/NFBMwc8rezLPKhgqr32X 3bpPFK2yS1j9w8/gk2ZvrdLIpltbrgs5fP6MQ8XfN0XLNE6B/el429ftLpgsiSQPsv LdGX/qAGGgoG1klNvY2ITJvDZvWta9cbZAHn6heo= Received: by mail-wm1-f42.google.com with SMTP id h11so14153002wmb.5 for ; Mon, 13 May 2019 08:49:19 -0700 (PDT) X-Gm-Message-State: APjAAAWqLpEHW0nXoBehbRYsPphfbClk9vs69ixxeslrP1jsK6S+eiCq 3gQQKP9Mfx4sGgE0S1gIkDbYqDYPrb4UhY4PM25GEA== X-Received: by 2002:a1c:486:: with SMTP id 128mr15280833wme.83.1557762558612; Mon, 13 May 2019 08:49:18 -0700 (PDT) MIME-Version: 1.0 References: <1557758315-12667-1-git-send-email-alexandre.chartre@oracle.com> <1557758315-12667-6-git-send-email-alexandre.chartre@oracle.com> In-Reply-To: <1557758315-12667-6-git-send-email-alexandre.chartre@oracle.com> From: Andy Lutomirski Date: Mon, 13 May 2019 08:49:07 -0700 X-Gmail-Original-Message-ID: Message-ID: Subject: Re: [RFC KVM 05/27] KVM: x86: Add handler to exit kvm isolation To: Alexandre Chartre Cc: Paolo Bonzini , Radim Krcmar , Thomas Gleixner , Ingo Molnar , Borislav Petkov , "H. Peter Anvin" , Dave Hansen , Andrew Lutomirski , Peter Zijlstra , kvm list , X86 ML , Linux-MM , LKML , Konrad Rzeszutek Wilk , jan.setjeeilers@oracle.com, Liran Alon , Jonathan Adams 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 Mon, May 13, 2019 at 7:39 AM Alexandre Chartre wrote: > > From: Liran Alon > > Interrupt handlers will need this handler to switch from > the KVM address space back to the kernel address space > on their prelog. This patch doesn't appear to do anything at all. What am I missing?