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=-5.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS 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 92C2DC4338F for ; Tue, 17 Aug 2021 00:57:20 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 75C0060295 for ; Tue, 17 Aug 2021 00:57:20 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235874AbhHQA5v (ORCPT ); Mon, 16 Aug 2021 20:57:51 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:40432 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S236236AbhHQA5M (ORCPT ); Mon, 16 Aug 2021 20:57:12 -0400 Received: from casper.infradead.org (casper.infradead.org [IPv6:2001:8b0:10b:1236::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 175CEC0612A8 for ; Mon, 16 Aug 2021 17:56:40 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=casper.20170209; h=In-Reply-To:Content-Type:MIME-Version: References:Message-ID:Subject:Cc:To:From:Date:Sender:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description; bh=/os8BYCxcZjK7RsY8spTxNjEEn6tv7DFP2h8onEl7uo=; b=bOC/SoWz6/tdlOnV4/vUhVc5ss xNP/QQZyxbUWtNhj6aDaDiLVklj/o/4tH7MUMIMRrxX+R2FfB3IqA4GzDPIAC4iFIRXYQ97Jp9XTX hzslpysWO9j8E+SjdOpjNcjrx2z3abR9XHmT11PgWhr0n7ILUpPetBOcdN1EFTMY/6UvRCcFEKvPI GxnJ4B8uM8xLZxeBv5yhalK7ntBj/C2pjsdLEmAcrVDtWjzzy/RxfgRRnsNvZA2DhLaeVCgmChEIi DXRNVpVWHX5a9Y6H/2e80tveJbFvyzSS8e7dMCwiMsxVRkzRsD1sTKlcdMvkTb8i9Gg6ovtIe/Skn SkNhV+Bg==; Received: from willy by casper.infradead.org with local (Exim 4.94.2 #2 (Red Hat Linux)) id 1mFnNg-001yBT-Ji; Tue, 17 Aug 2021 00:55:15 +0000 Date: Tue, 17 Aug 2021 01:55:04 +0100 From: Matthew Wilcox To: "Longpeng (Mike, Cloud Infrastructure Service Product Dept.)" Cc: David Hildenbrand , Khalid Aziz , Steven Sistare , Anthony Yznaga , "linux-kernel@vger.kernel.org" , "linux-mm@kvack.org" , "Gonglei (Arei)" Subject: Re: [RFC PATCH 0/5] madvise MADV_DOEXEC Message-ID: References: <1595869887-23307-1-git-send-email-anthony.yznaga@oracle.com> <43471cbb-67c6-f189-ef12-0f8302e81b06@oracle.com> <55720e1b39cff0a0f882d8610e7906dc80ea0a01.camel@oracle.com> <3cdccacab6244dd3ac9d491ac7233b43@huawei.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <3cdccacab6244dd3ac9d491ac7233b43@huawei.com> Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Tue, Aug 17, 2021 at 12:47:19AM +0000, Longpeng (Mike, Cloud Infrastructure Service Product Dept.) wrote: > I understand your intent now, you want to share memory ranges by sharing the relevant > pgtable pages. > > I had implemented a similar idea to support QEMU live upgrade about four years ago > ( in late 2017), > > https://patents.google.com/patent/US20210089345A1 I am not going to read a patent. This conversation is now over until I have had a conversation with my patent attorney.