From patchwork Thu Jul 11 14:25:32 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Alexandre Chartre X-Patchwork-Id: 11040167 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 44668112C for ; Thu, 11 Jul 2019 14:29:44 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 34F6528AC8 for ; Thu, 11 Jul 2019 14:29:44 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 28F2928AD9; Thu, 11 Jul 2019 14:29:44 +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=-8.0 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,MAILING_LIST_MULTI,RCVD_IN_DNSWL_HI autolearn=unavailable version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id D276C28AC8 for ; Thu, 11 Jul 2019 14:29:43 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728911AbfGKO2N (ORCPT ); Thu, 11 Jul 2019 10:28:13 -0400 Received: from userp2120.oracle.com ([156.151.31.85]:42496 "EHLO userp2120.oracle.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728826AbfGKO2L (ORCPT ); Thu, 11 Jul 2019 10:28:11 -0400 Received: from pps.filterd (userp2120.oracle.com [127.0.0.1]) by userp2120.oracle.com (8.16.0.27/8.16.0.27) with SMTP id x6BEOMdI013631; Thu, 11 Jul 2019 14:26:51 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=oracle.com; h=from : to : cc : subject : date : message-id : in-reply-to : references; s=corp-2018-07-02; bh=9FGKxWOaR9lg8qKZvVxZYyBDHDZO4/U+GnNunz7EXSk=; b=lniqBkC9yuqD/Ju9/6Xyu42PxGGU6Yt/2fjCL1pA8uTadjROIw7CBcc8faiSFRo7Bv3q BPubFEelFsfRjyPHH37WhqoIXQX5UbWj/nD4TDzwZBHQoeubLcnl1AB5vQ/mCucdF+Yu 6nQIlGjLClEFr6VXl3jVjtuCT9T1LE8cucXjWWInMM2yXZ80VjgZXh9Wagaq6vop/Niu wJjXwR5Jbi7oMNqUbY65Is6pPs++Vxlbu62PVImCdj3jQ/wjgIZg0r9DuCe22wMVOgbF ph3T8g1h5qYYjiZctfTIEHMk2DM78dBxXxMV6ZGQQw9l9nE44jpFZXce/yhCQnDc6q9c 6g== Received: from aserv0021.oracle.com (aserv0021.oracle.com [141.146.126.233]) by userp2120.oracle.com with ESMTP id 2tjm9r0bsr-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Thu, 11 Jul 2019 14:26:51 +0000 Received: from achartre-desktop.fr.oracle.com (dhcp-10-166-106-34.fr.oracle.com [10.166.106.34]) by aserv0021.oracle.com (8.14.4/8.14.4) with ESMTP id x6BEPcuD021444; Thu, 11 Jul 2019 14:26:47 GMT From: Alexandre Chartre To: pbonzini@redhat.com, rkrcmar@redhat.com, tglx@linutronix.de, mingo@redhat.com, bp@alien8.de, hpa@zytor.com, dave.hansen@linux.intel.com, luto@kernel.org, peterz@infradead.org, kvm@vger.kernel.org, x86@kernel.org, linux-mm@kvack.org, linux-kernel@vger.kernel.org Cc: konrad.wilk@oracle.com, jan.setjeeilers@oracle.com, liran.alon@oracle.com, jwadams@google.com, graf@amazon.de, rppt@linux.vnet.ibm.com, alexandre.chartre@oracle.com Subject: [RFC v2 20/26] mm/asi: Add option to map cpu_hw_events Date: Thu, 11 Jul 2019 16:25:32 +0200 Message-Id: <1562855138-19507-21-git-send-email-alexandre.chartre@oracle.com> X-Mailer: git-send-email 1.7.1 In-Reply-To: <1562855138-19507-1-git-send-email-alexandre.chartre@oracle.com> References: <1562855138-19507-1-git-send-email-alexandre.chartre@oracle.com> X-Proofpoint-Virus-Version: vendor=nai engine=6000 definitions=9314 signatures=668688 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 priorityscore=1501 malwarescore=0 suspectscore=0 phishscore=0 bulkscore=0 spamscore=0 clxscore=1015 lowpriorityscore=0 mlxscore=0 impostorscore=0 mlxlogscore=999 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1810050000 definitions=main-1907110162 Sender: kvm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Add option to map cpu_hw_events in ASI pagetable. Also restructure to select ptions for percpu optional mapping. Signed-off-by: Alexandre Chartre --- arch/x86/include/asm/asi.h | 1 + arch/x86/mm/asi.c | 3 +++ 2 files changed, 4 insertions(+), 0 deletions(-) diff --git a/arch/x86/include/asm/asi.h b/arch/x86/include/asm/asi.h index 8199618..f489551 100644 --- a/arch/x86/include/asm/asi.h +++ b/arch/x86/include/asm/asi.h @@ -19,6 +19,7 @@ #define ASI_MAP_CPU_PTR 0x02 /* for get_cpu_var()/this_cpu_ptr() */ #define ASI_MAP_CURRENT_TASK 0x04 /* map the current task */ #define ASI_MAP_RCU_DATA 0x08 /* map rcu data */ +#define ASI_MAP_CPU_HW_EVENTS 0x10 /* map cpu hw events */ enum page_table_level { PGT_LEVEL_PTE, diff --git a/arch/x86/mm/asi.c b/arch/x86/mm/asi.c index 20c23dc..d488704 100644 --- a/arch/x86/mm/asi.c +++ b/arch/x86/mm/asi.c @@ -8,6 +8,7 @@ #include #include #include +#include #include #include #include @@ -17,6 +18,7 @@ #include #include +#include "../events/perf_event.h" #include "../../../kernel/rcu/tree.h" /* ASI sessions, one per cpu */ @@ -33,6 +35,7 @@ struct asi_map_option asi_map_percpu_options[] = { { ASI_MAP_CPU_PTR, &this_cpu_off, sizeof(this_cpu_off) }, { ASI_MAP_CURRENT_TASK, ¤t_task, sizeof(current_task) }, { ASI_MAP_RCU_DATA, &rcu_data, sizeof(rcu_data) }, + { ASI_MAP_CPU_HW_EVENTS, &cpu_hw_events, sizeof(cpu_hw_events) }, }; static void asi_log_fault(struct asi *asi, struct pt_regs *regs,