Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1758586Ab1FQNhT (ORCPT ); Fri, 17 Jun 2011 09:37:19 -0400 Received: from va3ehsobe001.messaging.microsoft.com ([216.32.180.11]:33498 "EHLO VA3EHSOBE008.bigfish.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1755414Ab1FQNhI (ORCPT ); Fri, 17 Jun 2011 09:37:08 -0400 X-SpamScore: 1 X-BigFish: VPS1(zzzz1202hzz8275bhz32i668h839h61h) X-Spam-TCS-SCL: 0:0 X-Forefront-Antispam-Report: CIP:163.181.249.108;KIP:(null);UIP:(null);IPVD:NLI;H:ausb3twp01.amd.com;RD:none;EFVD:NLI X-WSS-ID: 0LMXSHP-01-0NZ-02 X-M-MSG: From: Joerg Roedel To: Peter Zijlstra , Paul Mackerras , Ingo Molnar , Arnaldo Carvalho de Melo CC: , , Joerg Roedel Subject: [PATCH 1/5] perf, core: Introduce attrs to count in either host or guest mode Date: Fri, 17 Jun 2011 15:37:30 +0200 Message-ID: <1308317854-27398-2-git-send-email-joerg.roedel@amd.com> X-Mailer: git-send-email 1.7.4.1 In-Reply-To: <1308317854-27398-1-git-send-email-joerg.roedel@amd.com> References: <1308317854-27398-1-git-send-email-joerg.roedel@amd.com> MIME-Version: 1.0 Content-Type: text/plain X-OriginatorOrg: amd.com Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1273 Lines: 38 The two new attributes exclude_guest and exclude_host can bes used by user-space to tell the kernel to setup performance counter to either only count while the CPU is in guest or in host mode. An additional check is also introduced to make sure user-space does not try to exclude guest and host mode from counting. Signed-off-by: Joerg Roedel --- include/linux/perf_event.h | 5 ++++- 1 files changed, 4 insertions(+), 1 deletions(-) diff --git a/include/linux/perf_event.h b/include/linux/perf_event.h index e0786e3..9a27b5d 100644 --- a/include/linux/perf_event.h +++ b/include/linux/perf_event.h @@ -219,7 +219,10 @@ struct perf_event_attr { mmap_data : 1, /* non-exec mmap data */ sample_id_all : 1, /* sample_type all events */ - __reserved_1 : 45; + exclude_host : 1, /* don't count in host */ + exclude_guest : 1, /* don't count in guest */ + + __reserved_1 : 43; union { __u32 wakeup_events; /* wakeup every n events */ -- 1.7.4.1 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/