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=-8.6 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,USER_AGENT_SANE_1 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 114B4C4363A for ; Mon, 26 Oct 2020 16:29:27 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id BAD7922284 for ; Mon, 26 Oct 2020 16:29:26 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1603729766; bh=5yvGW9YGA0UjySDqoVXYW7S2UJFyZuEihvB1YlKRyIM=; h=Date:From:To:Cc:Subject:References:In-Reply-To:List-ID:From; b=qdPCfaAWAnGeO84qxr3KRzoGL+tINpVogAsETCt9CZjdZpvSj2XrcvTeSUKCL0gCW /N0fByCiCHWdqbxUvRvi58MwuUHUraquEsAK8WA9uX87ckh2clpXvAkSIoOSLUU0Fa 9xngI8N5Om7hLPBo6aEl0IFBaBcIS357EeAJl/b4= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1776163AbgJZQ30 (ORCPT ); Mon, 26 Oct 2020 12:29:26 -0400 Received: from mail-wr1-f66.google.com ([209.85.221.66]:38721 "EHLO mail-wr1-f66.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1773930AbgJZQ30 (ORCPT ); Mon, 26 Oct 2020 12:29:26 -0400 Received: by mail-wr1-f66.google.com with SMTP id n18so13354575wrs.5; Mon, 26 Oct 2020 09:29:23 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:from:to:cc:subject:message-id:references :mime-version:content-disposition:in-reply-to:user-agent; bh=cWeA8CWri32QkONqVW1NoL41XQcJqip3DA/la05shNE=; b=jy3CkCAEDlaxLE0dtPYJlWGZ45KBW7vOvTatZzqoiYYJdDVqHt7UMn4MjQOkKqhUX4 z4Zkednq+wi5Ny6OB/fg4MXsmNMWWn7rgU8IBpW6TBGE80+1CjyrMFfsKjFiPkA21b+V IXP0hNsmNJbWRxsxTPkrP3W2RovMa9+A/UXCA57TdUV0rOeFH3Wpi51/CVVUkEDFi9jD kd7IWVTrtTfYAQtRjP0Rc+yhawD9B13YbI/ngwNhZO9P+8TF3pk770cPWH9VFhFThqhE 4vWuJNBAnEQjJ49E1diK2AEuwWEAZqnE/lAUVPURtn8g20smYwID55Anu7kRNc6gxBkc c1Qg== X-Gm-Message-State: AOAM532DBF+vl57rNrsjLo2h27U7LSKzS36KJHK/IT7d7JIeLfydpzWd nlJxn2KTzRBzoE57cIbJv5M= X-Google-Smtp-Source: ABdhPJz5EooO394mqACvRY2chbha+0h00JUXjmbZ5NmUQw3+2pZDLwSdqyxLZlxLWpcUSNrE8YXzlQ== X-Received: by 2002:a5d:4ccd:: with SMTP id c13mr18624693wrt.221.1603729763369; Mon, 26 Oct 2020 09:29:23 -0700 (PDT) Received: from liuwe-devbox-debian-v2 ([51.145.34.42]) by smtp.gmail.com with ESMTPSA id t62sm22130579wmf.22.2020.10.26.09.29.22 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 26 Oct 2020 09:29:22 -0700 (PDT) Date: Mon, 26 Oct 2020 16:29:21 +0000 From: Wei Liu To: Michael Kelley Cc: linux-kernel@vger.kernel.org, tglx@linutronix.de, peterz@infradead.org, kys@microsoft.com, sthemmin@microsoft.com, wei.liu@kernel.org, mingo@redhat.com, bp@alien8.de, x86@kernel.org, hpa@zytor.com, linux-hyperv@vger.kernel.org Subject: Re: [PATCH 1/1] x86/hyperv: Clarify comment on x2apic mode Message-ID: <20201026162921.4kj47twy2wl43jji@liuwe-devbox-debian-v2> References: <1603723972-81303-1-git-send-email-mikelley@microsoft.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1603723972-81303-1-git-send-email-mikelley@microsoft.com> User-Agent: NeoMutt/20180716 Precedence: bulk List-ID: X-Mailing-List: linux-hyperv@vger.kernel.org On Mon, Oct 26, 2020 at 07:52:52AM -0700, Michael Kelley wrote: > The comment about Hyper-V accessors is unclear regarding their > potential use in x2apic mode, as is the associated commit message > in e211288b72f1. Clarify that while the architectural and > synthetic MSRs are equivalent in x2apic mode, the full set of xapic > accessors cannot be used because of register layout differences. > > Fixes: e211288b72f1 ("x86/hyperv: Make vapic support x2apic mode") > Signed-off-by: Michael Kelley Applied to hyperv-fixes. Thanks.