From patchwork Mon Feb 22 10:55:56 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jan Beulich X-Patchwork-Id: 12098345 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=-7.2 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,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 27E1CC433DB for ; Mon, 22 Feb 2021 10:56:14 +0000 (UTC) Received: from lists.xenproject.org (lists.xenproject.org [192.237.175.120]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id ABAF964E00 for ; Mon, 22 Feb 2021 10:56:13 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org ABAF964E00 Authentication-Results: mail.kernel.org; dmarc=fail (p=quarantine dis=none) header.from=suse.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=xen-devel-bounces@lists.xenproject.org Received: from list by lists.xenproject.org with outflank-mailman.87920.165158 (Exim 4.92) (envelope-from ) id 1lE8si-00042T-ND; Mon, 22 Feb 2021 10:56:00 +0000 X-Outflank-Mailman: Message body and most headers restored to incoming version Received: by outflank-mailman (output) from mailman id 87920.165158; Mon, 22 Feb 2021 10:56:00 +0000 Received: from localhost ([127.0.0.1] helo=lists.xenproject.org) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1lE8si-00042M-K3; Mon, 22 Feb 2021 10:56:00 +0000 Received: by outflank-mailman (input) for mailman id 87920; Mon, 22 Feb 2021 10:55:58 +0000 Received: from us1-rack-iad1.inumbo.com ([172.99.69.81]) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1lE8sg-00042H-Kq for xen-devel@lists.xenproject.org; Mon, 22 Feb 2021 10:55:58 +0000 Received: from mx2.suse.de (unknown [195.135.220.15]) by us1-rack-iad1.inumbo.com (Halon) with ESMTPS id 00da6c20-e4f0-4600-b025-ae603449b97f; Mon, 22 Feb 2021 10:55:57 +0000 (UTC) Received: from relay2.suse.de (unknown [195.135.221.27]) by mx2.suse.de (Postfix) with ESMTP id EB0CCACCF; Mon, 22 Feb 2021 10:55:56 +0000 (UTC) X-BeenThere: xen-devel@lists.xenproject.org List-Id: Xen developer discussion List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: xen-devel-bounces@lists.xenproject.org Precedence: list Sender: "Xen-devel" X-Inumbo-ID: 00da6c20-e4f0-4600-b025-ae603449b97f X-Virus-Scanned: by amavisd-new at test-mx.suse.de DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=suse.com; s=susede1; t=1613991357; h=from:from:reply-to:date:date:message-id:message-id:to:to:cc:cc: mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding; bh=8JXC8hn+A4ki/3rMcvz1kCsidmRm0ApTLUBjTGwtAHg=; b=ixiyzA2nnDfiI5KzAcDG44A6D9sqE6q/KFOdxyozncflSud0ssLYtAA7lM8VRAuBP/yJ0+ UhKYF+iEcywOd6/Sf9fVd6FT4DFFjSW56KvqpY+fqF2vzC3xKPxtoiKaZTXUcpnFK3b4Ih W+zmWZR/CFsbXAxV+kUe7SzSCapgz28= To: "xen-devel@lists.xenproject.org" Cc: Andrew Cooper , Wei Liu , =?utf-8?q?Roger_Pau_Monn=C3=A9?= , Ian Jackson , George Dunlap , Kevin Tian , Jun Nakajima From: Jan Beulich Subject: [PATCH v3 0/2] VMX: apic access page handling adjustments Message-ID: <4731a3a3-906a-98ac-11ba-6a0723903391@suse.com> Date: Mon, 22 Feb 2021 11:55:56 +0100 User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:78.0) Gecko/20100101 Thunderbird/78.7.1 MIME-Version: 1.0 Content-Language: en-US The latter of the two changes was on my mental todo list for a very long time. With Julien reporting a problem with the handling of this page, I finally felt urged to make a patch. As it turns out, for addressing this problem only the first of the now split pages is needed, and the second can be further discussed and considered for 4.16. 1: delay p2m insertion of APIC access page 2: use a single, global APIC access page Jan