From patchwork Wed Dec 14 04:07:58 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Yi Sun X-Patchwork-Id: 9474035 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 AD1C560823 for ; Wed, 14 Dec 2016 11:12:28 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id A49742871B for ; Wed, 14 Dec 2016 11:12:28 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 99A4B2871F; Wed, 14 Dec 2016 11:12:28 +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=-2.7 required=2.0 tests=BAYES_00, DATE_IN_PAST_06_12, 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 463382871B for ; Wed, 14 Dec 2016 11:12:28 +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 1cH7SC-000625-Q0; Wed, 14 Dec 2016 11:10:32 +0000 Received: from mail6.bemta6.messagelabs.com ([193.109.254.103]) by lists.xenproject.org with esmtp (Exim 4.84_2) (envelope-from ) id 1cH7SB-0005zg-4J for xen-devel@lists.xenproject.org; Wed, 14 Dec 2016 11:10:31 +0000 Received: from [85.158.143.35] by server-7.bemta-6.messagelabs.com id 19/E4-29440-6A821585; Wed, 14 Dec 2016 11:10:30 +0000 X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFnrHLMWRWlGSWpSXmKPExsXS1tYhobtMIzD CoOcNi8X3LZOZHBg9Dn+4whLAGMWamZeUX5HAmrFnwhXWgkdSFRenvGdqYGwX6WLk5BASqJC4 uOIdG4gtIcArcWTZDFYI20/i4rp7TF2MXEA1DYwSd9f3MYEk2ATUJR5/7QGzRQSUJO6tmgxWx CzQzSSx8uFWFpCEsICTxKQjW8CmsgioSnTuXw9m8wp4SByf2wq1QU7i5LHJQDYHBydQ/N+WRI iD3CUu9r5jn8DIu4CRYRWjRnFqUVlqka6RsV5SUWZ6RkluYmaOrqGBmV5uanFxYnpqTmJSsV5 yfu4mRmA4MADBDsY/8wMPMUpyMCmJ8nJdDYgQ4kvKT6nMSCzOiC8qzUktPsQow8GhJME7Sz0w QkiwKDU9tSItMwcYmDBpCQ4eJRHeIBWgNG9xQWJucWY6ROoUo6KUOO9KkD4BkERGaR5cGywaL jHKSgnzMgIdIsRTkFqUm1mCKv+KUZyDUUmYdwPIFJ7MvBK46a+AFjMBLRZd4g+yuCQRISXVwJ j84P8OPr4/ky49ql/3sEVua4vpkiiOWWVPT9vMtexaLVjItcHuedSrzSyGn8znLzDs11VeJe6 4VN9FrftOzHWHrJeWp5Jaz/AdfjWdOcVfdqrUygO7Fqsqd1b1Gm8WjV96RKPAOK25smPfhDOn 5HOSt7930FZtO7e002XC7JSV56T52k88a1JiKc5INNRiLipOBAB7ZjSdgQIAAA== X-Env-Sender: yi.y.sun@linux.intel.com X-Msg-Ref: server-12.tower-21.messagelabs.com!1481713769!48240089!19 X-Originating-IP: [134.134.136.24] X-SpamReason: No, hits=0.0 required=7.0 tests=sa_preprocessor: VHJ1c3RlZCBJUDogMTM0LjEzNC4xMzYuMjQgPT4gMzkwOTcx\n X-StarScan-Received: X-StarScan-Version: 9.1.1; banners=-,-,- X-VirusChecked: Checked Received: (qmail 25469 invoked from network); 14 Dec 2016 11:10:29 -0000 Received: from mga09.intel.com (HELO mga09.intel.com) (134.134.136.24) by server-12.tower-21.messagelabs.com with DHE-RSA-AES256-GCM-SHA384 encrypted SMTP; 14 Dec 2016 11:10:29 -0000 Received: from orsmga004.jf.intel.com ([10.7.209.38]) by orsmga102.jf.intel.com with ESMTP; 14 Dec 2016 03:10:29 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.33,346,1477983600"; d="scan'208";a="39863379" Received: from vmmmba-s2600wft.bj.intel.com ([10.240.193.63]) by orsmga004.jf.intel.com with ESMTP; 14 Dec 2016 03:10:26 -0800 From: Yi Sun To: xen-devel@lists.xenproject.org Date: Wed, 14 Dec 2016 12:07:58 +0800 Message-Id: <1481688484-5093-19-git-send-email-yi.y.sun@linux.intel.com> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1481688484-5093-1-git-send-email-yi.y.sun@linux.intel.com> References: <1481688484-5093-1-git-send-email-yi.y.sun@linux.intel.com> Cc: wei.liu2@citrix.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 v4 18/24] x86: L2 CAT: implement get hw info 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 get HW info flow for L2 CAT including L2 CAT callback function. Signed-off-by: Yi Sun --- xen/arch/x86/psr.c | 14 ++++++++++++++ xen/arch/x86/sysctl.c | 15 +++++++++++++++ xen/include/asm-x86/psr.h | 1 + xen/include/public/sysctl.h | 6 ++++++ 4 files changed, 36 insertions(+) diff --git a/xen/arch/x86/psr.c b/xen/arch/x86/psr.c index b890b64..6de0abf 100644 --- a/xen/arch/x86/psr.c +++ b/xen/arch/x86/psr.c @@ -774,9 +774,23 @@ static unsigned int l2_cat_get_max_cos_max(const struct feat_node *feat) return feat->info.l2_cat_info.cos_max; } +static bool l2_cat_get_feat_info(const struct feat_node *feat, + enum cbm_type type, + uint32_t dat[], uint32_t array_len) +{ + if ( !dat || 2 > array_len || type != PSR_CBM_TYPE_L2 ) + return false; + + dat[CBM_LEN] = feat->info.l2_cat_info.cbm_len; + dat[COS_MAX] = feat->info.l2_cat_info.cos_max; + + return true; +} + struct feat_ops l2_cat_ops = { .init_feature = l2_cat_init_feature, .get_max_cos_max = l2_cat_get_max_cos_max, + .get_feat_info = l2_cat_get_feat_info, }; static void __init parse_psr_bool(char *s, char *value, char *feature, diff --git a/xen/arch/x86/sysctl.c b/xen/arch/x86/sysctl.c index 846eeaf..dede62c 100644 --- a/xen/arch/x86/sysctl.c +++ b/xen/arch/x86/sysctl.c @@ -207,6 +207,21 @@ long arch_do_sysctl( ret = -EFAULT; break; } + case XEN_SYSCTL_PSR_CAT_get_l2_info: + { + uint32_t dat[2]; + ret = psr_get_info(sysctl->u.psr_cat_op.target, + PSR_CBM_TYPE_L2, dat, 2); + if ( ret ) + break; + + sysctl->u.psr_cat_op.u.l2_info.cbm_len = dat[CBM_LEN]; + sysctl->u.psr_cat_op.u.l2_info.cos_max = dat[COS_MAX]; + + if ( !ret && __copy_field_to_guest(u_sysctl, sysctl, u.psr_cat_op) ) + ret = -EFAULT; + break; + } default: ret = -EOPNOTSUPP; break; diff --git a/xen/include/asm-x86/psr.h b/xen/include/asm-x86/psr.h index a7fc13d..ee65fe5 100644 --- a/xen/include/asm-x86/psr.h +++ b/xen/include/asm-x86/psr.h @@ -56,6 +56,7 @@ enum cbm_type { PSR_CBM_TYPE_L3, PSR_CBM_TYPE_L3_CODE, PSR_CBM_TYPE_L3_DATA, + PSR_CBM_TYPE_L2, }; extern struct psr_cmt *psr_cmt; diff --git a/xen/include/public/sysctl.h b/xen/include/public/sysctl.h index 418f4bb..0a0c9f7 100644 --- a/xen/include/public/sysctl.h +++ b/xen/include/public/sysctl.h @@ -745,6 +745,7 @@ typedef struct xen_sysctl_pcitopoinfo xen_sysctl_pcitopoinfo_t; DEFINE_XEN_GUEST_HANDLE(xen_sysctl_pcitopoinfo_t); #define XEN_SYSCTL_PSR_CAT_get_l3_info 0 +#define XEN_SYSCTL_PSR_CAT_get_l2_info 1 struct xen_sysctl_psr_cat_op { uint32_t cmd; /* IN: XEN_SYSCTL_PSR_CAT_* */ uint32_t target; /* IN */ @@ -755,6 +756,11 @@ struct xen_sysctl_psr_cat_op { #define XEN_SYSCTL_PSR_CAT_L3_CDP (1u << 0) uint32_t flags; /* OUT: CAT flags */ } l3_info; + + struct { + uint32_t cbm_len; /* OUT: CBM length */ + uint32_t cos_max; /* OUT: Maximum COS */ + } l2_info; } u; }; typedef struct xen_sysctl_psr_cat_op xen_sysctl_psr_cat_op_t;