From patchwork Wed Dec 14 04:08:01 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Yi Sun X-Patchwork-Id: 9474029 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 4EF1760823 for ; Wed, 14 Dec 2016 11:12:24 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 45E892871B for ; Wed, 14 Dec 2016 11:12:24 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 3A8552871F; Wed, 14 Dec 2016 11:12:24 +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 EAB3D2871B for ; Wed, 14 Dec 2016 11:12:22 +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 1cH7SL-0006Dg-M6; Wed, 14 Dec 2016 11:10:41 +0000 Received: from mail6.bemta6.messagelabs.com ([193.109.254.103]) by lists.xenproject.org with esmtp (Exim 4.84_2) (envelope-from ) id 1cH7SK-00068t-LF for xen-devel@lists.xenproject.org; Wed, 14 Dec 2016 11:10:40 +0000 Received: from [85.158.143.35] by server-6.bemta-6.messagelabs.com id 0C/CE-15112-0B821585; Wed, 14 Dec 2016 11:10:40 +0000 X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFvrOLMWRWlGSWpSXmKPExsXS1tYhobteIzD CoOG/tsX3LZOZHBg9Dn+4whLAGMWamZeUX5HAmnH0cWjBRKeKLXMzGhhfGXYxcnIICVRITPy/ gh3ElhDglTiybAZrFyMHkO0nsfGkXBcjF1BJA6PEuwkTWEBq2ATUJR5/7WECsUUElCTurZrMB FLELNDNJLHy4VawImEBD4lHy2cwgtgsAqoSnWtmgC3gBYqvPXwNapmcxMljk8GWcQLF/21JhL jHXeJi7zv2CYy8CxgZVjFqFKcWlaUW6RoZ6yUVZaZnlOQmZuboGhqY6eWmFhcnpqfmJCYV6yX n525iBAYCAxDsYPwzP/AQoyQHk5IoL9fVgAghvqT8lMqMxOKM+KLSnNTiQ4wyHBxKEryz1AMj hASLUtNTK9Iyc4AhCZOW4OBREuENUgFK8xYXJOYWZ6ZDpE4x6nJMe7b4KZMQS15+XqqUOO9Kk BkCIEUZpXlwI2DxcYlRVkqYlxHoKCGegtSi3MwSVPlXjOIcjErCvBtApvBk5pXAbXoFdAQT0B GiS/xBjihJREhJNTCmeGZedjNIPTlJ9cGE81pXfzPvPjjtU5d+/r3fZZkZ1/gMfxn8fl3Gszl 2wvLM/k2suTdr66Wflbn0OQu8qVZ9sIKvMarvzFe3Yjd/tR+f3oqlGOfee1LNLHNgTYnv/BbP ddmKDmue+rn8tF/Swrp+jeN7529H33fOilvzXvn+jNjc71/dtv5WYinOSDTUYi4qTgQAWldKh IoCAAA= X-Env-Sender: yi.y.sun@linux.intel.com X-Msg-Ref: server-12.tower-21.messagelabs.com!1481713769!48240089!22 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 26980 invoked from network); 14 Dec 2016 11:10:39 -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 11:10:39 -0000 Received: from orsmga004.jf.intel.com ([10.7.209.38]) by orsmga102.jf.intel.com with ESMTP; 14 Dec 2016 03:10:38 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.33,346,1477983600"; d="scan'208";a="39863411" Received: from vmmmba-s2600wft.bj.intel.com ([10.240.193.63]) by orsmga004.jf.intel.com with ESMTP; 14 Dec 2016 03:10:36 -0800 From: Yi Sun To: xen-devel@lists.xenproject.org Date: Wed, 14 Dec 2016 12:08:01 +0800 Message-Id: <1481688484-5093-22-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 21/24] tools: L2 CAT: support get HW info for L2 CAT. 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 xl/xc changes to support get HW info for L2 CAT. 'xl psr-hwinfo' is updated to show both L3 CAT and L2 CAT info. Example(on machine which only supports L2 CAT): Cache Monitoring Technology (CMT): Enabled : 0 Cache Allocation Technology (CAT): L3 libxl: error: libxl_psr.c:100:libxl__psr_cat_log_err_msg: CAT is not enabled on the socket: No such file or directory Failed to get l3 cat info Cache Allocation Technology (CAT): L2 Socket ID : 0 Maximum COS : 3 CBM length : 8 Default CBM : 0xff Signed-off-by: He Chen Signed-off-by: Yi Sun --- tools/libxc/include/xenctrl.h | 6 +++--- tools/libxc/xc_psr.c | 40 +++++++++++++++++++++++----------- tools/libxl/libxl.h | 11 ++++++++-- tools/libxl/libxl_psr.c | 8 +++---- tools/libxl/xl_cmdimpl.c | 50 +++++++++++++++++++++++++++++++++++-------- 5 files changed, 85 insertions(+), 30 deletions(-) diff --git a/tools/libxc/include/xenctrl.h b/tools/libxc/include/xenctrl.h index 2c83544..5b7df22 100644 --- a/tools/libxc/include/xenctrl.h +++ b/tools/libxc/include/xenctrl.h @@ -2626,9 +2626,9 @@ int xc_psr_cat_set_domain_data(xc_interface *xch, uint32_t domid, int xc_psr_cat_get_domain_data(xc_interface *xch, uint32_t domid, xc_psr_cat_type type, uint32_t target, uint64_t *data); -int xc_psr_cat_get_l3_info(xc_interface *xch, uint32_t socket, - uint32_t *cos_max, uint32_t *cbm_len, - bool *cdp_enabled); +int xc_psr_cat_get_info(xc_interface *xch, uint32_t socket, unsigned int lvl, + uint32_t *cos_max, uint32_t *cbm_len, + bool *cdp_enabled); int xc_get_cpu_levelling_caps(xc_interface *xch, uint32_t *caps); int xc_get_cpu_featureset(xc_interface *xch, uint32_t index, diff --git a/tools/libxc/xc_psr.c b/tools/libxc/xc_psr.c index 43b3286..7af17d9 100644 --- a/tools/libxc/xc_psr.c +++ b/tools/libxc/xc_psr.c @@ -317,24 +317,40 @@ int xc_psr_cat_get_domain_data(xc_interface *xch, uint32_t domid, return rc; } -int xc_psr_cat_get_l3_info(xc_interface *xch, uint32_t socket, - uint32_t *cos_max, uint32_t *cbm_len, - bool *cdp_enabled) +int xc_psr_cat_get_info(xc_interface *xch, uint32_t socket, unsigned int lvl, + uint32_t *cos_max, uint32_t *cbm_len, bool *cdp_enabled) { - int rc; + int rc = -1; DECLARE_SYSCTL; sysctl.cmd = XEN_SYSCTL_psr_cat_op; - sysctl.u.psr_cat_op.cmd = XEN_SYSCTL_PSR_CAT_get_l3_info; sysctl.u.psr_cat_op.target = socket; - rc = xc_sysctl(xch, &sysctl); - if ( !rc ) - { - *cos_max = sysctl.u.psr_cat_op.u.l3_info.cos_max; - *cbm_len = sysctl.u.psr_cat_op.u.l3_info.cbm_len; - *cdp_enabled = sysctl.u.psr_cat_op.u.l3_info.flags & - XEN_SYSCTL_PSR_CAT_L3_CDP; + switch ( lvl ) { + case 2: + sysctl.u.psr_cat_op.cmd = XEN_SYSCTL_PSR_CAT_get_l2_info; + rc = xc_sysctl(xch, &sysctl); + if ( !rc ) + { + *cos_max = sysctl.u.psr_cat_op.u.l2_info.cos_max; + *cbm_len = sysctl.u.psr_cat_op.u.l2_info.cbm_len; + *cdp_enabled = false; + } + break; + case 3: + sysctl.u.psr_cat_op.cmd = XEN_SYSCTL_PSR_CAT_get_l3_info; + rc = xc_sysctl(xch, &sysctl); + if ( !rc ) + { + *cos_max = sysctl.u.psr_cat_op.u.l3_info.cos_max; + *cbm_len = sysctl.u.psr_cat_op.u.l3_info.cbm_len; + *cdp_enabled = sysctl.u.psr_cat_op.u.l3_info.flags & + XEN_SYSCTL_PSR_CAT_L3_CDP; + } + break; + default: + errno = EOPNOTSUPP; + return rc; } return rc; diff --git a/tools/libxl/libxl.h b/tools/libxl/libxl.h index acbf476..9233b0f 100644 --- a/tools/libxl/libxl.h +++ b/tools/libxl/libxl.h @@ -904,6 +904,13 @@ void libxl_mac_copy(libxl_ctx *ctx, libxl_mac *dst, const libxl_mac *src); * If this is defined, the Code and Data Prioritization feature is supported. */ #define LIBXL_HAVE_PSR_CDP 1 + +/* + * LIBXL_HAVE_PSR_L2_CAT + * + * If this is defined, the L2 Cache Allocation Technology feature is supported. + */ +#define LIBXL_HAVE_PSR_L2_CAT 1 #endif /* @@ -2159,8 +2166,8 @@ int libxl_psr_cat_get_cbm(libxl_ctx *ctx, uint32_t domid, * On success, the function returns an array of elements in 'info', * and the length in 'nr'. */ -int libxl_psr_cat_get_l3_info(libxl_ctx *ctx, libxl_psr_cat_info **info, - int *nr); +int libxl_psr_cat_get_info(libxl_ctx *ctx, libxl_psr_cat_info **info, + int *nr, unsigned int lvl); void libxl_psr_cat_info_list_free(libxl_psr_cat_info *list, int nr); #endif diff --git a/tools/libxl/libxl_psr.c b/tools/libxl/libxl_psr.c index 786183c..f238f71 100644 --- a/tools/libxl/libxl_psr.c +++ b/tools/libxl/libxl_psr.c @@ -352,8 +352,8 @@ int libxl_psr_cat_get_cbm(libxl_ctx *ctx, uint32_t domid, return rc; } -int libxl_psr_cat_get_l3_info(libxl_ctx *ctx, libxl_psr_cat_info **info, - int *nr) +int libxl_psr_cat_get_info(libxl_ctx *ctx, libxl_psr_cat_info **info, + int *nr, unsigned int lvl) { GC_INIT(ctx); int rc; @@ -380,8 +380,8 @@ int libxl_psr_cat_get_l3_info(libxl_ctx *ctx, libxl_psr_cat_info **info, libxl_for_each_set_bit(socketid, socketmap) { ptr[i].id = socketid; - if (xc_psr_cat_get_l3_info(ctx->xch, socketid, &ptr[i].cos_max, - &ptr[i].cbm_len, &ptr[i].cdp_enabled)) { + if (xc_psr_cat_get_info(ctx->xch, socketid, lvl, &ptr[i].cos_max, + &ptr[i].cbm_len, &ptr[i].cdp_enabled)) { libxl__psr_cat_log_err_msg(gc, errno); rc = ERROR_FAIL; free(ptr); diff --git a/tools/libxl/xl_cmdimpl.c b/tools/libxl/xl_cmdimpl.c index 7e8a8ae..c210b05 100644 --- a/tools/libxl/xl_cmdimpl.c +++ b/tools/libxl/xl_cmdimpl.c @@ -9331,19 +9331,19 @@ int main_psr_cmt_show(int argc, char **argv) } #endif -#ifdef LIBXL_HAVE_PSR_CAT -static int psr_cat_hwinfo(void) +#if defined(LIBXL_HAVE_PSR_CAT) || defined(LIBXL_HAVE_PSR_L2_CAT) +static int psr_l3_cat_hwinfo(void) { - int rc; - int i, nr; + int rc, nr; + unsigned int i; uint32_t l3_cache_size; libxl_psr_cat_info *info; - printf("Cache Allocation Technology (CAT):\n"); + printf("Cache Allocation Technology (CAT): L3\n"); - rc = libxl_psr_cat_get_l3_info(ctx, &info, &nr); + rc = libxl_psr_cat_get_info(ctx, &info, &nr, 3); if (rc) { - fprintf(stderr, "Failed to get cat info\n"); + fprintf(stderr, "Failed to get l3 cat info\n"); return rc; } @@ -9454,7 +9454,7 @@ static int psr_cat_show(uint32_t domid) int rc; libxl_psr_cat_info *info; - rc = libxl_psr_cat_get_l3_info(ctx, &info, &nr); + rc = libxl_psr_cat_get_info(ctx, &info, &nr, 3); if (rc) { fprintf(stderr, "Failed to get cat info\n"); return rc; @@ -9471,6 +9471,34 @@ out: return rc; } +static int psr_l2_cat_hwinfo(void) +{ + int rc; + unsigned int i; + int nr; + libxl_psr_cat_info *info; + + printf("Cache Allocation Technology (CAT): L2\n"); + + rc = libxl_psr_cat_get_info(ctx, &info, &nr, 2); + if (rc) { + fprintf(stderr, "Failed to get l2 cat info\n"); + return rc; + } + + for (i = 0; i < nr; i++) { + /* There is no CMT on L2 cache so far. */ + printf("%-16s: %u\n", "Socket ID", info[i].id); + printf("%-16s: %u\n", "Maximum COS", info[i].cos_max); + printf("%-16s: %u\n", "CBM length", info[i].cbm_len); + printf("%-16s: %#llx\n", "Default CBM", + (1ull << info[i].cbm_len) - 1); + } + + libxl_psr_cat_info_list_free(info, nr); + return rc; +} + int main_psr_cat_cbm_set(int argc, char **argv) { uint32_t domid; @@ -9588,7 +9616,11 @@ int main_psr_hwinfo(int argc, char **argv) ret = psr_cmt_hwinfo(); if (!ret && (all || cat)) - ret = psr_cat_hwinfo(); + ret = psr_l3_cat_hwinfo(); + + /* L2 CAT is independent of CMT and L3 CAT */ + if (all || cat) + ret = psr_l2_cat_hwinfo(); return ret; }