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=-1.1 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,MAILING_LIST_MULTI,SPF_PASS autolearn=ham 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 A0103C46460 for ; Mon, 13 May 2019 15:49:22 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 7067321537 for ; Mon, 13 May 2019 15:49:22 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1557762562; bh=iu0DvAJjkMh0MqQjI1Y4OdDJERot1b1WNhATGWADuGY=; h=References:In-Reply-To:From:Date:Subject:To:Cc:List-ID:From; b=zyxv/zqCHWOCXK129oYO6romVzxOEQ1/3puYv9I9vpNjfDaGUxEC9PB9Desj1tPXA NIYk8R2lf4LFquP0Xclk8S5szyTexq+ezBPgE56F1DEFVxbYdyadjNab3M5z5N9AHb 51FrePkLpqHKr9gv2JqyT5rZE4LvKA8XeMTWfuEI= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729377AbfEMPtV (ORCPT ); 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-Google-Smtp-Source: APXvYqyggSeuJFq1Eke91tNtR4SA4B4i+YkaoSBUhYCtCAsL8+cTTl0ofap3IWQH83A63l00cYsKpyKbuDbIwRau26E= 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? 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[198.145.29.99]) by mx.google.com with ESMTPS id l22si15683995pgc.523.2019.05.13.08.49.20 for (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Mon, 13 May 2019 08:49:20 -0700 (PDT) Received-SPF: pass (google.com: domain of luto@kernel.org designates 198.145.29.99 as permitted sender) client-ip=198.145.29.99; Authentication-Results: mx.google.com; dkim=pass header.i=@kernel.org header.s=default header.b=rp9du5MO; spf=pass (google.com: domain of luto@kernel.org designates 198.145.29.99 as permitted sender) smtp.mailfrom=luto@kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=kernel.org Received: from mail-wm1-f43.google.com (mail-wm1-f43.google.com [209.85.128.43]) (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 151F521707 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-f43.google.com with SMTP id 7so8202948wmo.2 for ; Mon, 13 May 2019 08:49:20 -0700 (PDT) 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" X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: 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?