From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-dy1-f202.google.com (mail-dy1-f202.google.com [74.125.82.202]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 8A21E413618 for ; Tue, 9 Jun 2026 16:57:33 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=74.125.82.202 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1781024255; cv=none; b=apQrAleDMUsGRg8sKv7cWc326yGPV4DrpnJTTgn6I8CE6Xf/76RgjORvzp639JMEHDJ+E8lgU7zzFmNKO1BAIoW7D19utKQnd5noYxgXRBh5/nQjVkf+/EtWGmI0qGfH4AppOYnuuodaUNuW/KPzNEmFhrKCUxx/ZoRBhhJ58QE= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1781024255; c=relaxed/simple; bh=j9rAu2ch3U0PopGp2J2OtpKMyKPvVhnNhyR4tZXXCII=; h=Date:In-Reply-To:Mime-Version:References:Message-ID:Subject:From: To:Cc:Content-Type; b=DL5TAAOfvBEdI7XXz/F3HwfnBqeI3CU6XWwB97Fh6BMINtJzL7cWljWztlvp0TmIjBpu7kQUebhssx6R/0abLn+Qaz+YL7lATodvUoKekqhzpNQCRPEBxWf7BHhIHM75W8ss3JyxQ3gF5hHSS4KPOR2SUWk6ZiQWBkprWyVOsso= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=google.com; spf=pass smtp.mailfrom=flex--irogers.bounces.google.com; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b=aXYNsfiq; arc=none smtp.client-ip=74.125.82.202 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=google.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=flex--irogers.bounces.google.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b="aXYNsfiq" Received: by mail-dy1-f202.google.com with SMTP id 5a478bee46e88-304d8613efbso5862051eec.1 for ; Tue, 09 Jun 2026 09:57:33 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20251104; t=1781024253; x=1781629053; darn=vger.kernel.org; h=cc:to:from:subject:message-id:references:mime-version:in-reply-to :date:from:to:cc:subject:date:message-id:reply-to; bh=2MaddhjZSLJjQwBreN2wO4fD/cwTQ9BQwJgEVkkOTsM=; b=aXYNsfiqhrreXKHQ48e4kRTZXBQgQrHPsHrrk5bbC086gbaPMT41yRkSCpY+OzIp/U Zz2NPyLIxvNUptLKnocAIAKcRumfiU29RUa6KT/6TnTkEyZnE7aHLeWt69/6oYCqw7PF ODcScB9Rpc8Av7K1gLNt1WA7TxRUgyAWOlUbJ4jRXvTDJimD4BEbAjlUgQ8zrATCWsCe TjXCo7jh3dmlWNEBcV00sRu80XTZnojSdh6lfIs+5EV2yt8G6RtG/EuYsMg1tTRVvYhY NgaiJs+ctKrYQBOjdMLafwDTg9IZ2co8fwbe9qyeXVz+GMomVpGkMnlBoLJ0jYSbWD9h q0HA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20251104; t=1781024253; x=1781629053; h=cc:to:from:subject:message-id:references:mime-version:in-reply-to :date:x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=2MaddhjZSLJjQwBreN2wO4fD/cwTQ9BQwJgEVkkOTsM=; b=jE6/uSILRs1mOUtZGnqQBTekvjc4aT0EaSD99p2nXwxRyTsOBKK8doLhfjmiGx4ieC 5vy35k7lNP6CNMDFi73xsWaVVCOHy7/2DG51gWGg8U0VUDS51ywG+ZMcQd7csHtTFGiR GTAbcmG+TejmjqqBV7DV2Jbigul0dt/Dz2dozfL0j38AaZvvbBkaT9HsgNlkPbTx3faf avGUVLcp/Wp5EjC42V0wIai11b7ZIRuyxyerj8/GjPSz6Hd0pXt/z/f3u8J+4gW+b1Bo 5vVIMWOsxL1Tt/dBneTpvKkVIVm+VFgIbPHXO2wp5OaxT/RG9YHfNHSlUsdURUlhbCNl MjrQ== X-Forwarded-Encrypted: i=1; AFNElJ/EVRBpGUhUQSMNwC8evxJ4qDFqfrA2e47VyRlJhFx98kxBtWIrjIvXiw6w/dJ4em8ntMAKuDBhcTG/7Wk=@vger.kernel.org X-Gm-Message-State: AOJu0YydP8pSszbAVArGbylmYI1DfAfo/cnge1E3HotrYaO47T12+YSJ 20l9vvkQUcY/UjoXhlrlq49+xYMYdDbLGrOvaD5Bi1ZaQEFXjqE2XeoFYP1QzNFZGZI4U3g9+d9 T+TeFq28c/g== X-Received: from dybpk17.prod.google.com ([2002:a05:7301:4291:b0:303:c230:ac8f]) (user=irogers job=prod-delivery.src-stubby-dispatcher) by 2002:a05:7300:3b06:b0:2ed:e14:e954 with SMTP id 5a478bee46e88-3077b8014d6mr11298822eec.30.1781024252274; Tue, 09 Jun 2026 09:57:32 -0700 (PDT) Date: Tue, 9 Jun 2026 09:57:23 -0700 In-Reply-To: <20260609070348.541964-1-irogers@google.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 References: <20260609070348.541964-1-irogers@google.com> X-Mailer: git-send-email 2.54.0.1099.g489fc7bff1-goog Message-ID: <20260609165726.786694-1-irogers@google.com> Subject: [PATCH v2 0/3] perf pmu: Add tool-provided NVMe PMU From: Ian Rogers To: irogers@google.com, yuzhuo@google.com Cc: 9erthalion6@gmail.com, acme@kernel.org, adrian.hunter@intel.com, alexandre.chartre@oracle.com, ashelat@redhat.com, german.gomez@arm.com, james.clark@linaro.org, jolsa@kernel.org, leo.yan@arm.com, linux-kernel@vger.kernel.org, linux-nvme@lists.infradead.org, linux-perf-users@vger.kernel.org, mingo@redhat.com, mjeanson@efficios.com, namhyung@kernel.org, peterz@infradead.org, tglozar@redhat.com Content-Type: text/plain; charset="UTF-8" This patch series introduces a tool-provided PMU for NVMe devices to expose various hardware logs as perf events. Using libnvme, the new nvme_pmu extracts metrics from standard NVMe log pages including: - SMART / Health Information (e.g. data units read/written, power cycles, temperature) - Endurance Group Information - FDP (Flexible Data Placement) Statistics - Error Information - Zoned Namespaces (ZNS) Changed Zones Changes in v2: - Fixed feature check: added test-libnvme.c to test-all.c to correctly propagate fast-path discovery failures. - Makefile cleanup: added libnvme to FEATURE_PKG_CONFIG in Makefile.feature to ensure correct pkg-config flags are used during feature testing. - Alignment safety: replaced strict-aliasing pointers with get_unaligned_le* accessors inside nvme_pmu__read_val() to prevent crashes on strict-alignment architectures. - Heap safety: refactored evsel delta snapshots to use a new 'nvme' union member inside struct evsel instead of clashing with evsel->priv, preventing memory leaks and heap corruption with active tools like perf script. Ian Rogers (3): perf build: Add libnvme feature detection perf pmu: Implement tool-provided NVMe PMU perf tests: Add NVMe PMU event parsing test tools/build/Makefile.feature | 5 +- tools/build/feature/Makefile | 3 + tools/build/feature/test-all.c | 5 + tools/build/feature/test-libnvme.c | 11 + tools/perf/Makefile.config | 12 + tools/perf/tests/Build | 1 + tools/perf/tests/builtin-test.c | 1 + tools/perf/tests/nvme_pmu.c | 176 ++++++++++ tools/perf/tests/tests.h | 1 + tools/perf/util/Build | 1 + tools/perf/util/evsel.c | 13 +- tools/perf/util/evsel.h | 4 + tools/perf/util/nvme_pmu.c | 537 +++++++++++++++++++++++++++++ tools/perf/util/nvme_pmu.h | 143 ++++++++ tools/perf/util/pmu.c | 15 + tools/perf/util/pmu.h | 8 +- tools/perf/util/pmus.c | 31 +- tools/perf/util/pmus.h | 1 + 18 files changed, 960 insertions(+), 8 deletions(-) create mode 100644 tools/build/feature/test-libnvme.c create mode 100644 tools/perf/tests/nvme_pmu.c create mode 100644 tools/perf/util/nvme_pmu.c create mode 100644 tools/perf/util/nvme_pmu.h -- 2.54.0.1099.g489fc7bff1-goog