From patchwork Mon Jan 4 17:41:26 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Tamas K Lengyel X-Patchwork-Id: 11997129 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=-16.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT 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 1D89AC433DB for ; Mon, 4 Jan 2021 17:41:52 +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 D1EC720679 for ; Mon, 4 Jan 2021 17:41:51 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org D1EC720679 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=intel.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.61448.108154 (Exim 4.92) (envelope-from ) id 1kwTrO-0004io-4M; Mon, 04 Jan 2021 17:41:38 +0000 X-Outflank-Mailman: Message body and most headers restored to incoming version Received: by outflank-mailman (output) from mailman id 61448.108154; Mon, 04 Jan 2021 17:41:38 +0000 Received: from localhost ([127.0.0.1] helo=lists.xenproject.org) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1kwTrO-0004ih-0g; Mon, 04 Jan 2021 17:41:38 +0000 Received: by outflank-mailman (input) for mailman id 61448; Mon, 04 Jan 2021 17:41:37 +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 1kwTrN-0004ic-DT for xen-devel@lists.xenproject.org; Mon, 04 Jan 2021 17:41:37 +0000 Received: from mga03.intel.com (unknown [134.134.136.65]) by us1-amaz-eas2.inumbo.com (Halon) with ESMTPS id 55d27197-8fb0-4d87-9f86-befa8905d820; Mon, 04 Jan 2021 17:41:35 +0000 (UTC) Received: from orsmga006.jf.intel.com ([10.7.209.51]) by orsmga103.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 04 Jan 2021 09:41:34 -0800 Received: from aparija-mobl1.amr.corp.intel.com (HELO ubuntu.localdomain) ([10.212.21.134]) by orsmga006-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 04 Jan 2021 09:41:33 -0800 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: 55d27197-8fb0-4d87-9f86-befa8905d820 IronPort-SDR: G+apP087tvjmLDF4225t8XljUc9lU6eZx2mE1PXzCneoV2XYz1CfepbywWHFYKXzsuWRQv1hMn yS/q3e065NwQ== X-IronPort-AV: E=McAfee;i="6000,8403,9854"; a="177086248" X-IronPort-AV: E=Sophos;i="5.78,474,1599548400"; d="scan'208";a="177086248" IronPort-SDR: NbSqJRQNaaAzCPJ/XgSgbXv/7dAzf+iT+DQw+HG2MrA2k+7I6r4HV9xCCw7YoB+uVQAPaRIZQv OjPTPahhb2TA== X-IronPort-AV: E=Sophos;i="5.78,474,1599548400"; d="scan'208";a="349597692" From: Tamas K Lengyel To: xen-devel@lists.xenproject.org Cc: Tamas K Lengyel , Tamas K Lengyel , Jan Beulich , Andrew Cooper , George Dunlap , =?utf-8?q?Roger_Pau_Monn=C3=A9?= , Wei Liu Subject: [PATCH 1/2] x86/mem_sharing: copy cpuid during vm forking Date: Mon, 4 Jan 2021 09:41:26 -0800 Message-Id: <6d5ca8a57a2745e933f00706bff306844611f64d.1609781242.git.tamas.lengyel@intel.com> X-Mailer: git-send-email 2.25.1 MIME-Version: 1.0 Signed-off-by: Tamas K Lengyel --- xen/arch/x86/mm/mem_sharing.c | 1 + 1 file changed, 1 insertion(+) diff --git a/xen/arch/x86/mm/mem_sharing.c b/xen/arch/x86/mm/mem_sharing.c index c428fd16ce..4a02c7d6f2 100644 --- a/xen/arch/x86/mm/mem_sharing.c +++ b/xen/arch/x86/mm/mem_sharing.c @@ -1764,6 +1764,7 @@ static int fork(struct domain *cd, struct domain *d) domain_pause(d); cd->max_pages = d->max_pages; + memcpy(cd->arch.cpuid, d->arch.cpuid, sizeof(*d->arch.cpuid)); cd->parent = d; }