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[156.151.31.85]) by mx.google.com with ESMTPS id a16si8273870ioo.7.2019.07.11.07.27.00 for (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Thu, 11 Jul 2019 07:27:00 -0700 (PDT) Received-SPF: pass (google.com: domain of alexandre.chartre@oracle.com designates 156.151.31.85 as permitted sender) client-ip=156.151.31.85; Authentication-Results: mx.google.com; dkim=pass header.i=@oracle.com header.s=corp-2018-07-02 header.b=lniqBkC9; spf=pass (google.com: domain of alexandre.chartre@oracle.com designates 156.151.31.85 as permitted sender) smtp.mailfrom=alexandre.chartre@oracle.com; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=oracle.com 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 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: 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, -- 1.7.1