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=-11.4 required=3.0 tests=DKIMWL_WL_MED,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_PASS,USER_IN_DEF_DKIM_WL 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 957CAC004D3 for ; Mon, 22 Oct 2018 17:17:17 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 2C6E6205F4 for ; Mon, 22 Oct 2018 17:17:18 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b="oh4K+y1K" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 2C6E6205F4 Authentication-Results: mail.kernel.org; dmarc=fail (p=reject dis=none) header.from=google.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727877AbeJWBgh (ORCPT ); Mon, 22 Oct 2018 21:36:37 -0400 Received: from mail-oi1-f195.google.com ([209.85.167.195]:33102 "EHLO mail-oi1-f195.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727218AbeJWBgh (ORCPT ); Mon, 22 Oct 2018 21:36:37 -0400 Received: by mail-oi1-f195.google.com with SMTP id a203-v6so32896061oib.0 for ; Mon, 22 Oct 2018 10:17:15 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20161025; h=mime-version:in-reply-to:references:from:date:message-id:subject:to :cc; bh=kFIWSwlcatuK7qVAXayXThw+ohAJ50Y01Za95waL/78=; b=oh4K+y1KKj6YyJmAB29kgwyrt/IGKLgNs/zdSNEDl4C0o8NAzsziU6TFtDn1mueC1l lbWUmO5RJbI2xNhRhn1Pq79TTdvnZkwYoMnQPMyjjTVVt1qK5cORItpnX0BQlHZcf6qF KJ6A25DTmRsZUbEg5cX6o7fRUUqPLEeHM65lUgyfL6Fv3hAzuEHaGnrEYDn13xYS2NOx a0N7+dLPeHQLXGPs/F6GQ7u3h5BKxeOb0eYHsq730cRIKjQbRQqfaa6g81A8i9GfAWDa HHl6rmqmt5EkdZIxp44Mtp+aSiTN9pQvCZtb6o2OePh6wev93AiYyFApXmmBdxQrkFX1 8bIA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:in-reply-to:references:from:date :message-id:subject:to:cc; bh=kFIWSwlcatuK7qVAXayXThw+ohAJ50Y01Za95waL/78=; b=ajftlML2t4hwHADIbCJBlTrm1wcsjk1UgMSB1qTtCMspjBolDzyl6r9/kAGil0osDo LILyHvo0v/4PxqU1qJQm/uvbj1O47eaU9DdFxOXAoLtYAN2YVvgkeqNX039vz2RK2Ki4 Y1tCdwkQxkFlLlzMSZU53kVjFjA9koG/pBQPjQak+PJojZE9OXphCMKDGY/2xMhuwK10 XygiAg5s7fcZiJHLhuh8Fcad68REgZtJr5WJoDjJQHcxTmQ8FlMVTlJNX6JYR/FsCIGr U4w0yD0InSISKY/dGmjGuxYe2g1bGByZAFhRGj3gH0SVxhQ87M1AreLXHDicgG4+MBG9 fDBw== X-Gm-Message-State: ABuFfohwwmgA0Jyw6z+5ll/QU4NrLHH7c+K/ctGk690VWJFd6EplC+w/ JMhKf6jsaNY+NPAkCyNV8nWZL8/9ugPJ8SigNfobQg== X-Google-Smtp-Source: ACcGV61gtjplMmes948jvbCVlCZfSTnIW/IhOPkUrThuWnldyXFsDGNxlXbA6uUX4YdSJ7hgroi0J1PRBwWm2B6MshY= X-Received: by 2002:aca:60c5:: with SMTP id u188-v6mr25453180oib.4.1540228634577; Mon, 22 Oct 2018 10:17:14 -0700 (PDT) MIME-Version: 1.0 Received: by 2002:ac9:2ac9:0:0:0:0:0 with HTTP; Mon, 22 Oct 2018 10:17:13 -0700 (PDT) In-Reply-To: <1540074145-31285-2-git-send-email-karahmed@amazon.de> References: <1540074145-31285-1-git-send-email-karahmed@amazon.de> <1540074145-31285-2-git-send-email-karahmed@amazon.de> From: Jim Mattson Date: Mon, 22 Oct 2018 10:17:13 -0700 Message-ID: Subject: Re: [PATCH v3 01/13] X86/nVMX: handle_vmon: Read 4 bytes from guest memory To: KarimAllah Ahmed Cc: kvm list , LKML , Paolo Bonzini , =?UTF-8?B?UmFkaW0gS3LEjW3DocWZ?= 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 Sat, Oct 20, 2018 at 3:22 PM, KarimAllah Ahmed wrote: > Read the data directly from guest memory instead of the map->read->unmap > sequence. This also avoids using kvm_vcpu_gpa_to_page() and kmap() which > assumes that there is a "struct page" for guest memory. > > Suggested-by: Jim Mattson > Signed-off-by: KarimAllah Ahmed Reviewed-by: Jim Mattson