From patchwork Thu Dec 12 18:22:36 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Barret Rhoden X-Patchwork-Id: 11289005 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id BC87614B7 for ; Thu, 12 Dec 2019 18:22:57 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 994B922527 for ; Thu, 12 Dec 2019 18:22:57 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b="wOmXzfFa" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1730346AbfLLSWy (ORCPT ); Thu, 12 Dec 2019 13:22:54 -0500 Received: from mail-qv1-f74.google.com ([209.85.219.74]:52070 "EHLO mail-qv1-f74.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1730110AbfLLSWy (ORCPT ); Thu, 12 Dec 2019 13:22:54 -0500 Received: by mail-qv1-f74.google.com with SMTP id x22so2004656qvc.18 for ; Thu, 12 Dec 2019 10:22:53 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20161025; h=date:message-id:mime-version:subject:from:to:cc; bh=rEnziU9nLlHlYc/tf137lSRc7sdTqh5wg35Mf+C3wB0=; b=wOmXzfFazrugxZCYf410kz6njqqI2ZayPQ3Zp1rCCJAl61eXIHZJMLIXKd7ipcL41R Sm+Wcca2Q6JqgT++kdbvjzbjYq0FYVW/lmi7QB7yJwkVuo4MV424+x+d7yCwKx0ttep0 Lptl32SFvhXt0TyRQZlvv9SqXlyRFpCG1TsG3O7/iQ2t4vkLUnHSfRpXrHshDh35/gFo c/KEVVI0neOaMUy1YUeklfjbepAMeO7ukOv7HLZ0ISIwDFMKd/GAqrrKh7r8JeBNqa+r SbafHPrcaqVH22AN6GG+pQawROsiZA4u3mp/RCCP/9BjFwd9lIMMNNZaOz5x++hHZB3m 2fSg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:message-id:mime-version:subject:from:to:cc; bh=rEnziU9nLlHlYc/tf137lSRc7sdTqh5wg35Mf+C3wB0=; b=Vac+jCaLPo+iIsWxTr0grRNKfD8qF8MEUOg0zXsCNuBGJPvxYSytDZj3Jed4pwOc+r /t/nBMZrFwx2RYvX6dY7x0rcQFAnNIjMEqn5D3nEVeR/mn6vrbpnclPvygulObmHpqu0 8llTCramnZb12W7CIygkoG4u5ptbnME38lI1s8aOGewQpTVYA3jQrrLA7eQUbb2Gov3E LaR7kjS0nirhUI0ecMFU9zGVmbVpsS75+cpXab6WZQ+H3mVCessWIKTd8a3LZf01d7OT KNRh5gEt2RuB0ljRF58lAKUUrl4XsoEWXyEAiapq+W2Fu4UCH8qd3kCE/Fe60BKYauqL ZAZg== X-Gm-Message-State: APjAAAXljZ5pNG31Re8XrZ+vI07HSLi9wwh7sx3CP0+GW5ayc9l3Rt4S s/PDEWgaEA4fOPGaHZl3aLw5UmVr X-Google-Smtp-Source: APXvYqzcW/ZghkfJqEYc4rFEK2YkEyqYYEYYl+bxHBfcPF4MTg+EIi+2m6XM7rKZ/g0d94tGM2bioMma X-Received: by 2002:ac8:5308:: with SMTP id t8mr8677688qtn.51.1576174973189; Thu, 12 Dec 2019 10:22:53 -0800 (PST) Date: Thu, 12 Dec 2019 13:22:36 -0500 Message-Id: <20191212182238.46535-1-brho@google.com> Mime-Version: 1.0 X-Mailer: git-send-email 2.24.1.735.g03f4e72817-goog Subject: [PATCH v5 0/2] kvm: Use huge pages for DAX-backed files From: Barret Rhoden To: Paolo Bonzini , Dan Williams , David Hildenbrand , Dave Jiang , Alexander Duyck , Sean Christopherson Cc: linux-nvdimm@lists.01.org, x86@kernel.org, kvm@vger.kernel.org, linux-kernel@vger.kernel.org, jason.zeng@intel.com Sender: kvm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org This patchset allows KVM to map huge pages for DAX-backed files. v4 -> v5: v4: https://lore.kernel.org/lkml/20191211213207.215936-1-brho@google.com/ - Rebased onto kvm/queue - Removed the switch statement and fixed PUD_SIZE; just use dev_pagemap_mapping_shift() > PAGE_SHIFT - Added explanation of parameter changes to patch 1's commit message v3 -> v4: v3: https://lore.kernel.org/lkml/20190404202345.133553-1-brho@google.com/ - Rebased onto linus/master v2 -> v3: v2: https://lore.kernel.org/lkml/20181114215155.259978-1-brho@google.com/ - Updated Acks/Reviewed-by - Rebased onto linux-next v1 -> v2: https://lore.kernel.org/lkml/20181109203921.178363-1-brho@google.com/ - Updated Acks/Reviewed-by - Minor touchups - Added patch to remove redundant PageReserved() check - Rebased onto linux-next RFC/discussion thread: https://lore.kernel.org/lkml/20181029210716.212159-1-brho@google.com/ Barret Rhoden (2): mm: make dev_pagemap_mapping_shift() externally visible kvm: Use huge pages for DAX-backed files arch/x86/kvm/mmu/mmu.c | 31 +++++++++++++++++++++++++++---- include/linux/mm.h | 3 +++ mm/memory-failure.c | 38 +++----------------------------------- mm/util.c | 34 ++++++++++++++++++++++++++++++++++ 4 files changed, 67 insertions(+), 39 deletions(-)