From patchwork Fri Mar 5 09:43:41 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jan Beulich X-Patchwork-Id: 12118161 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=-7.3 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 8FE0DC433DB for ; Fri, 5 Mar 2021 09:44:04 +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 2757664EAE for ; Fri, 5 Mar 2021 09:44:04 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 2757664EAE 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.93547.176490 (Exim 4.92) (envelope-from ) id 1lI6zv-0008Ty-7E; Fri, 05 Mar 2021 09:43:51 +0000 X-Outflank-Mailman: Message body and most headers restored to incoming version Received: by outflank-mailman (output) from mailman id 93547.176490; Fri, 05 Mar 2021 09:43:51 +0000 Received: from localhost ([127.0.0.1] helo=lists.xenproject.org) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1lI6zv-0008Tr-49; Fri, 05 Mar 2021 09:43:51 +0000 Received: by outflank-mailman (input) for mailman id 93547; Fri, 05 Mar 2021 09:43:49 +0000 Received: from all-amaz-eas1.inumbo.com ([34.197.232.57] helo=us1-amaz-eas2.inumbo.com) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1lI6zt-0008Tm-Hu for xen-devel@lists.xenproject.org; Fri, 05 Mar 2021 09:43:49 +0000 Received: from mx2.suse.de (unknown [195.135.220.15]) by us1-amaz-eas2.inumbo.com (Halon) with ESMTPS id 3bba016d-431e-40b1-a5ea-bbb28c462f9a; Fri, 05 Mar 2021 09:43:48 +0000 (UTC) Received: from relay2.suse.de (unknown [195.135.221.27]) by mx2.suse.de (Postfix) with ESMTP id DF80AAC54; Fri, 5 Mar 2021 09:43:47 +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: 3bba016d-431e-40b1-a5ea-bbb28c462f9a 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=1614937428; 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=kp70BljORx7nBpfqdLEHZzzKMKQGsMpWt26fzlCub88=; b=nhVt5EvVTTX/gbT0dfHucX1mw9rM+f+XpBMcIIkof+JDqDwLrc1JiKR86aat1zAJALKGEx tbIWU7X8oW5zzyla3MYUjON9qxO5T5WNIJMnF4GsulsdDI7fpCF8SA0lCuP03OSrLGXN3U YdlKdZLJguQJwV5UVSVbl9NjS7ZRPPc= To: "xen-devel@lists.xenproject.org" Cc: Andrew Cooper , Wei Liu , =?utf-8?q?Roger_Pau_Monn=C3=A9?= , Ian Jackson From: Jan Beulich Subject: [PATCH v2 0/2][4.15] x86: guest MSR access handling tweaks Message-ID: Date: Fri, 5 Mar 2021 10:43:41 +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 first patch was stripped of its WRMSR adjustments, albeit I'm not convinced we'll get away with this - see there. v2 there also addresses further comments. The 2nd patch is new here, but the need for something like this was mentioned in v1 already. 1: PV: conditionally avoid raising #GP for early guest MSR reads 2: AMD: expose HWCR.TscFreqSel to guests Jan