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=-5.6 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,MAILING_LIST_MULTI,SPF_HELO_NONE, SPF_PASS,USER_AGENT_SANE_1 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 AFF3CC433E6 for ; Tue, 21 Jul 2020 15:22:30 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 84D62206E3 for ; Tue, 21 Jul 2020 15:22:30 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1595344950; bh=duJ2HBhio/BkAyiZCAkWbkTUg4rjmwr+3L6EYBWx3/g=; h=Date:From:To:Cc:Subject:References:In-Reply-To:List-ID:From; b=lSLL5C3lksaqGYBlGhSyNmHZcWI3QspT8bBJa+CBVHP1W8X06OGEsGL3TGKKJQC4y TomwrxacIwfSWr0x8gGoV/n0OYCInI59WkyFMonA+Elj4MQ1I9dacLovMCFL6jpAyr 1oiEU3HSEQIbaa46N191/UU78da1EA/sjBkrXSUE= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728089AbgGUPWY (ORCPT ); Tue, 21 Jul 2020 11:22:24 -0400 Received: from mail-wr1-f68.google.com ([209.85.221.68]:38292 "EHLO mail-wr1-f68.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726436AbgGUPWY (ORCPT ); Tue, 21 Jul 2020 11:22:24 -0400 Received: by mail-wr1-f68.google.com with SMTP id a14so6751561wra.5; Tue, 21 Jul 2020 08:22:22 -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=duJ2HBhio/BkAyiZCAkWbkTUg4rjmwr+3L6EYBWx3/g=; b=GOcMiiDPMp52fhoN2T9EH0DL81eoeamGtI/kisf0QKbuFL5pIgXINcfHXzwc5q5xcp O9Gv962HWVVWKVt55voGXYL+CBMtgadtLwJKDurzM/m7tXpp4lnKkGicFO7gKuQg1Fvj O5/uNg6eECMop6nM4EtQjKDPvLBcc6+YAKbuk3mlQJlzQqB3V7tp1yUUbCm+JrX5JWC4 JWd+8TTzQRJf+pRuxuisgq0TKrV3mhJkEbUTkyzC1Cb5dWxYSdYCtNFdaqMRMPGFStYR IJzIMGBvGQESI5f/wEpcSP2D2PKjF1Dpzn2EoZOHm0BPiebGce+thXk1AafB2EtUfz1h ydoQ== X-Gm-Message-State: AOAM530183MXGlZ88vJRhUVbp6ZcpERxjYfGfk44AQ1+7cqxD/i7xmGf 6+5C6zJzaZAXQoLzAqrecoY= X-Google-Smtp-Source: ABdhPJz/1xAiJ9wZTaqakzlijULHHXKAbAgEhVJRgxG7DXGUCbLqBvTyMCdI0jGdy3XiUAvxfI8cTg== X-Received: by 2002:a5d:6681:: with SMTP id l1mr13710248wru.47.1595344941801; Tue, 21 Jul 2020 08:22:21 -0700 (PDT) Received: from liuwe-devbox-debian-v2 ([51.145.34.42]) by smtp.gmail.com with ESMTPSA id 207sm4276409wme.13.2020.07.21.08.22.19 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 21 Jul 2020 08:22:20 -0700 (PDT) Date: Tue, 21 Jul 2020 15:22:18 +0000 From: Wei Liu To: Boqun Feng Cc: linux-hyperv@vger.kernel.org, linux-input@vger.kernel.org, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, linux-scsi@vger.kernel.org, "K. Y. Srinivasan" , Haiyang Zhang , Stephen Hemminger , Wei Liu , Jiri Kosina , Benjamin Tissoires , Dmitry Torokhov , "David S. Miller" , Jakub Kicinski , "James E.J. Bottomley" , "Martin K. Petersen" , Michael Kelley Subject: Re: [RFC 01/11] Drivers: hv: vmbus: Always use HV_HYP_PAGE_SIZE for gpadl Message-ID: <20200721152218.ozpk2b4ymfdocu4p@liuwe-devbox-debian-v2> References: <20200721014135.84140-1-boqun.feng@gmail.com> <20200721014135.84140-2-boqun.feng@gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20200721014135.84140-2-boqun.feng@gmail.com> User-Agent: NeoMutt/20180716 Sender: linux-hyperv-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-hyperv@vger.kernel.org On Tue, Jul 21, 2020 at 09:41:25AM +0800, Boqun Feng wrote: > Since the hypervisor always uses 4K as its page size, the size of PFNs > used for gpadl should be HV_HYP_PAGE_SIZE rather than PAGE_SIZE, so > adjust this accordingly as the preparation for supporting 16K/64K page > size guests. It may be worth calling out there is no change on x86 because HV_HYP_PAGE_SHIFT and PAGE_SHIFT are of the same value there. Wei.