From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-16.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 612A2C4332D for ; Thu, 18 Feb 2021 11:30:55 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 27FE264E79 for ; Thu, 18 Feb 2021 11:30:55 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231613AbhBRL2m (ORCPT ); Thu, 18 Feb 2021 06:28:42 -0500 Received: from mga18.intel.com ([134.134.136.126]:58029 "EHLO mga18.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231386AbhBRKLc (ORCPT ); Thu, 18 Feb 2021 05:11:32 -0500 IronPort-SDR: lq0QEewrT5bLONUSpEIQ8XQAWpmIT744KRD6M0crrFwCMm4WeT8nmg3MlzInQN1EYZLHiuKyoS o8RO/YzCRGvw== X-IronPort-AV: E=McAfee;i="6000,8403,9898"; a="171127950" X-IronPort-AV: E=Sophos;i="5.81,186,1610438400"; d="scan'208";a="171127950" Received: from orsmga008.jf.intel.com ([10.7.209.65]) by orsmga106.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 18 Feb 2021 01:58:21 -0800 IronPort-SDR: mHYDqPVViKM8f8KGEbTc2AXXmDvQT0jmbGU5kNevxpOndJIJfcmgBj5aUDEMCyoFWp0cefm2+A jdG8ywQqR+Aw== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.81,186,1610438400"; d="scan'208";a="400427699" Received: from ahunter-desktop.fi.intel.com ([10.237.72.149]) by orsmga008.jf.intel.com with ESMTP; 18 Feb 2021 01:58:19 -0800 From: Adrian Hunter To: Arnaldo Carvalho de Melo , Jiri Olsa , Andi Kleen Cc: Alexander Shishkin , linux-kernel@vger.kernel.org Subject: [PATCH 08/11] perf intel-pt: Allow for a guest kernel address filter Date: Thu, 18 Feb 2021 11:57:58 +0200 Message-Id: <20210218095801.19576-9-adrian.hunter@intel.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20210218095801.19576-1-adrian.hunter@intel.com> References: <20210218095801.19576-1-adrian.hunter@intel.com> Organization: Intel Finland Oy, Registered Address: PL 281, 00181 Helsinki, Business Identity Code: 0357606 - 4, Domiciled in Helsinki Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Handling TIP.PGD for an address filter for a guest kernel is the same as a host kernel, but user space decoding, and hence address filters, are not supported. Signed-off-by: Adrian Hunter --- tools/perf/util/intel-pt.c | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) diff --git a/tools/perf/util/intel-pt.c b/tools/perf/util/intel-pt.c index 29d871718995..546d512b300a 100644 --- a/tools/perf/util/intel-pt.c +++ b/tools/perf/util/intel-pt.c @@ -792,8 +792,14 @@ static int __intel_pt_pgd_ip(uint64_t ip, void *data) u8 cpumode; u64 offset; - if (ip >= ptq->pt->kernel_start) + if (ptq->state->to_nr) { + if (intel_pt_guest_kernel_ip(ip)) + return intel_pt_match_pgd_ip(ptq->pt, ip, ip, NULL); + /* No support for decoding guest user space */ + return -EINVAL; + } else if (ip >= ptq->pt->kernel_start) { return intel_pt_match_pgd_ip(ptq->pt, ip, ip, NULL); + } cpumode = PERF_RECORD_MISC_USER; -- 2.17.1