From patchwork Thu Jan 19 06:01:21 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Yi Sun X-Patchwork-Id: 9525197 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id 04DF560437 for ; Thu, 19 Jan 2017 06:05:16 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id E5ED32860C for ; Thu, 19 Jan 2017 06:05:15 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id DA92828641; Thu, 19 Jan 2017 06:05:15 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-4.2 required=2.0 tests=BAYES_00, RCVD_IN_DNSWL_MED autolearn=ham version=3.3.1 Received: from lists.xenproject.org (lists.xenproject.org [192.237.175.120]) (using TLSv1.2 with cipher AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 89DB22860C for ; Thu, 19 Jan 2017 06:05:15 +0000 (UTC) Received: from localhost ([127.0.0.1] helo=lists.xenproject.org) by lists.xenproject.org with esmtp (Exim 4.84_2) (envelope-from ) id 1cU5oo-0007KU-Eh; Thu, 19 Jan 2017 06:03:30 +0000 Received: from mail6.bemta3.messagelabs.com ([195.245.230.39]) by lists.xenproject.org with esmtp (Exim 4.84_2) (envelope-from ) id 1cU5om-0007FS-IR for xen-devel@lists.xenproject.org; Thu, 19 Jan 2017 06:03:28 +0000 Received: from [85.158.137.68] by server-6.bemta-3.messagelabs.com id F3/1E-02804-FA650885; Thu, 19 Jan 2017 06:03:27 +0000 X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFnrPLMWRWlGSWpSXmKPExsVywNykWHd9WEO Ewbazwhbft0xmcmD0OPzhCksAYxRrZl5SfkUCa8b0T4dZCtYIVvxdmNvAOI+3i5GLQ0hgOqPE k6cTWLsYOTkkBHgljiybAWX7S5w5uokNoqiBUeLrrfssIAk2AXWJx197mEBsEQEliXurJjOBF DELdDNJrHy4FaxIWMBdYkNnOzOIzSKgKvH68l4wm1fAQ2LV1FVsEBvkJE4emwy2jRMofmX+BX YQWwiod8uKS0wTGHkXMDKsYtQoTi0qSy3SNTbQSyrKTM8oyU3MzNE1NDDWy00tLk5MT81JTCr WS87P3cQIDIh6BgbGHYydJ/wOMUpyMCmJ8tpbNkQI8SXlp1RmJBZnxBeV5qQWH2KU4eBQkuCd EwqUEyxKTU+tSMvMAYYmTFqCg0dJhLcKJM1bXJCYW5yZDpE6xagoJc4bBZIQAElklObBtcHi4 RKjrJQwLyMDA4MQT0FqUW5mCar8K0ZxDkYlYd7vIFN4MvNK4Ka/AlrMBLTYSrkeZHFJIkJKqo HRfx/HjgTBXR8/3gw/9GyTBKdJ5crZvQw3ppb7cp681Dj/5JYJZ5890VvMmvO/vNS10SxVZr3 o/D0Cxt2nSrzzSpq9/RfNO6y1YKnb7Kwdc5RrGG/6OZ07Yfnvdc7FXgN1l1mC80/+fW9+OP55 z9bzPfIzjh2evfexePpEiz71nRbfo9mLVtacUmIpzkg01GIuKk4EALSfuVmCAgAA X-Env-Sender: yi.y.sun@linux.intel.com X-Msg-Ref: server-13.tower-31.messagelabs.com!1484805800!80652688!5 X-Originating-IP: [192.55.52.115] X-SpamReason: No, hits=0.0 required=7.0 tests= X-StarScan-Received: X-StarScan-Version: 9.1.1; banners=-,-,- X-VirusChecked: Checked Received: (qmail 3812 invoked from network); 19 Jan 2017 06:03:27 -0000 Received: from mga14.intel.com (HELO mga14.intel.com) (192.55.52.115) by server-13.tower-31.messagelabs.com with DHE-RSA-AES256-GCM-SHA384 encrypted SMTP; 19 Jan 2017 06:03:27 -0000 Received: from fmsmga004.fm.intel.com ([10.253.24.48]) by fmsmga103.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 18 Jan 2017 22:03:26 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.33,252,1477983600"; d="scan'208";a="215119615" Received: from vmmmba-s2600wft.bj.intel.com ([10.240.193.63]) by fmsmga004.fm.intel.com with ESMTP; 18 Jan 2017 22:03:23 -0800 From: Yi Sun To: xen-devel@lists.xenproject.org Date: Thu, 19 Jan 2017 14:01:21 +0800 Message-Id: <1484805686-7249-20-git-send-email-yi.y.sun@linux.intel.com> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1484805686-7249-1-git-send-email-yi.y.sun@linux.intel.com> References: <1484805686-7249-1-git-send-email-yi.y.sun@linux.intel.com> Cc: wei.liu2@citrix.com, konrad.wilk@oracle.com, andrew.cooper3@citrix.com, dario.faggioli@citrix.com, he.chen@linux.intel.com, ian.jackson@eu.citrix.com, Yi Sun , mengxu@cis.upenn.edu, jbeulich@suse.com, chao.p.peng@linux.intel.com Subject: [Xen-devel] [PATCH RESEND v5 19/24] x86: L2 CAT: implement get value flow. X-BeenThere: xen-devel@lists.xen.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: Xen developer discussion List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Errors-To: xen-devel-bounces@lists.xen.org Sender: "Xen-devel" X-Virus-Scanned: ClamAV using ClamSMTP This patch implements L2 CAT get value callback function and interface in domctl. Signed-off-by: Yi Sun --- v5: - remove type check in callback function. --- xen/arch/x86/domctl.c | 7 +++++++ xen/arch/x86/psr.c | 12 ++++++++++++ xen/include/public/domctl.h | 1 + 3 files changed, 20 insertions(+) diff --git a/xen/arch/x86/domctl.c b/xen/arch/x86/domctl.c index db56500..af6153d 100644 --- a/xen/arch/x86/domctl.c +++ b/xen/arch/x86/domctl.c @@ -1403,6 +1403,13 @@ long arch_do_domctl( copyback = 1; break; + case XEN_DOMCTL_PSR_CAT_OP_GET_L2_CBM: + ret = psr_get_val(d, domctl->u.psr_cat_op.target, + &domctl->u.psr_cat_op.data, + PSR_CBM_TYPE_L2); + copyback = 1; + break; + default: ret = -EOPNOTSUPP; break; diff --git a/xen/arch/x86/psr.c b/xen/arch/x86/psr.c index b630c48..1fad540 100644 --- a/xen/arch/x86/psr.c +++ b/xen/arch/x86/psr.c @@ -730,9 +730,21 @@ static bool l2_cat_get_feat_info(const struct feat_node *feat, return true; } +static bool l2_cat_get_val(const struct feat_node *feat, unsigned int cos, + enum cbm_type type, uint64_t *val) +{ + if ( cos > feat->info.l2_cat_info.cos_max ) + cos = 0; + + *val = feat->cos_reg_val[cos]; + + return true; +} + struct feat_ops l2_cat_ops = { .get_cos_max = l2_cat_get_cos_max, .get_feat_info = l2_cat_get_feat_info, + .get_val = l2_cat_get_val, }; static void __init parse_psr_bool(char *s, char *value, char *feature, diff --git a/xen/include/public/domctl.h b/xen/include/public/domctl.h index 85cbb7c..8c183ba 100644 --- a/xen/include/public/domctl.h +++ b/xen/include/public/domctl.h @@ -1138,6 +1138,7 @@ struct xen_domctl_psr_cat_op { #define XEN_DOMCTL_PSR_CAT_OP_SET_L3_DATA 3 #define XEN_DOMCTL_PSR_CAT_OP_GET_L3_CODE 4 #define XEN_DOMCTL_PSR_CAT_OP_GET_L3_DATA 5 +#define XEN_DOMCTL_PSR_CAT_OP_GET_L2_CBM 7 uint32_t cmd; /* IN: XEN_DOMCTL_PSR_CAT_OP_* */ uint32_t target; /* IN */ uint64_t data; /* IN/OUT */