From patchwork Wed Jun 19 08:31:53 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Shaoqin Huang X-Patchwork-Id: 13703519 Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.129.124]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 2ED987B3EB for ; Wed, 19 Jun 2024 08:32:16 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=170.10.129.124 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1718785937; cv=none; b=FK6ZaeBVfmkGQNd3qh9/Haf2/hS0pbe38k12782R03itBxTCGTEr7WdTmWcrh1HOjVueKmZdOpHZ59u5zkGL5U1t+qTTZXRPQCm2tf7uZwhGdQNss3WBr4H8Dqb9pDHNw1QECWKmnATLvV4jLYTy61k82eIClEXiXx1cXQqjGWQ= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1718785937; c=relaxed/simple; bh=+2joTCwEvbc7KrZi+nMHbY004XoRVtUhnAflVlD9NYU=; h=From:To:Cc:Subject:Date:Message-Id:MIME-Version; b=OJPb44r0mY1H3q9x7i5xtnqrjt2Yw3I0WGecTen7/McYLKolibUf3EeouIWpVLGca9JPVsHOX+4xeUvXVmIW/xWr8A7ajGgOM8DLE+evRsH/8d3vixmO4tzMxjm0lpCynHumg1GGz6JcDbUiNYr88FhD+49MOB/HmnewgVUqttE= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=redhat.com; spf=pass smtp.mailfrom=redhat.com; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b=YtvxvdzM; arc=none smtp.client-ip=170.10.129.124 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=redhat.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=redhat.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b="YtvxvdzM" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1718785935; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding; bh=SVHHXWeH5aQFZ8JdFAToDf6m3aAxA4I0hr87LTb8rSI=; b=YtvxvdzMT9PiQq55bDd0UfNzbSLYGQo+oq0k/0MpRrX+8CKrx3o7n3gIkY2zeNUtevvx6f VO3dkqrWDhIgXlJGhL+qnMsHgzYk3r0YJbgVQSd19lrhOLwnssB3UJkknCGC5qYHVzbvm/ 8LTiYOa3wNyLJ4IsP6XTeZQbhWOqTwA= Received: from mx-prod-mc-02.mail-002.prod.us-west-2.aws.redhat.com (ec2-54-186-198-63.us-west-2.compute.amazonaws.com [54.186.198.63]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3, cipher=TLS_AES_256_GCM_SHA384) id us-mta-553-WiZ7PL65PtqmKAuadzP8eg-1; Wed, 19 Jun 2024 04:32:10 -0400 X-MC-Unique: WiZ7PL65PtqmKAuadzP8eg-1 Received: from mx-prod-int-04.mail-002.prod.us-west-2.aws.redhat.com (mx-prod-int-04.mail-002.prod.us-west-2.aws.redhat.com [10.30.177.40]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by mx-prod-mc-02.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTPS id CE2501955E84; Wed, 19 Jun 2024 08:32:07 +0000 (UTC) Received: from virt-mtcollins-01.lab.eng.rdu2.redhat.com (virt-mtcollins-01.lab.eng.rdu2.redhat.com [10.8.1.196]) by mx-prod-int-04.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTP id 0C41819560AF; Wed, 19 Jun 2024 08:32:04 +0000 (UTC) From: Shaoqin Huang To: Oliver Upton , Marc Zyngier , kvmarm@lists.linux.dev Cc: Shaoqin Huang , James Morse , kvm@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linux-kselftest@vger.kernel.org, Paolo Bonzini , Shuah Khan , Suzuki K Poulose , Zenghui Yu Subject: [PATCH v10 0/3] KVM: selftests: aarch64: Introduce pmu_event_filter_test Date: Wed, 19 Jun 2024 04:31:53 -0400 Message-Id: <20240619083200.1047073-1-shahuang@redhat.com> Precedence: bulk X-Mailing-List: linux-kselftest@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Scanned-By: MIMEDefang 3.0 on 10.30.177.40 The test is inspired by the pmu_event_filter_test which implemented by x86. On the arm64 platform, there is the same ability to set the pmu_event_filter through the KVM_ARM_VCPU_PMU_V3_FILTER attribute. So add the test for arm64. The series first create the helper function which can be used for the vpmu related tests. Then, it implement the test. Changelog: ---------- v9->v10: - Remove the first_filter checking in the prepare_expected_pmce function. - Add a new macro EVENT_[ALLOW|DENY] to make the definition of filter more readable. - Some small improvements. v8->v9: - Rebased to latest kvm-arm/next. v7->v8: - Rebased to kvm-arm/next. - Deleted the GIC layout related staff. - Fixed the checking logic in the kvm_pmu_support_events. v6->v7: - Rebased to v6.9-rc3. v5->v6: - Rebased to v6.9-rc1. - Collect RB. - Add multiple filter test. v4->v5: - Rebased to v6.8-rc6. - Refactor the helper function, make it fine-grained and easy to be used. - Namimg improvements. - Use the kvm_device_attr_set() helper. - Make the test descriptor array readable and clean. - Delete the patch which moves the pmu related helper to vpmu.h. - Remove the kvm_supports_pmu_event_filter() function since nobody will run this on a old kernel. v3->v4: - Rebased to the v6.8-rc2. v2->v3: - Check the pmceid in guest code instead of pmu event count since different hardware may have different event count result, check pmceid makes it stable on different platform. [Eric] - Some typo fixed and commit message improved. v1->v2: - Improve the commit message. [Eric] - Fix the bug in [enable|disable]_counter. [Raghavendra & Marc] - Add the check if kvm has attr KVM_ARM_VCPU_PMU_V3_FILTER. - Add if host pmu support the test event throught pmceid0. - Split the test_invalid_filter() to another patch. [Eric] Shaoqin Huang (3): KVM: selftests: aarch64: Add helper function for the vpmu vcpu creation KVM: selftests: aarch64: Introduce pmu_event_filter_test KVM: selftests: aarch64: Add invalid filter test in pmu_event_filter_test tools/testing/selftests/kvm/Makefile | 1 + .../kvm/aarch64/pmu_event_filter_test.c | 352 ++++++++++++++++++ .../kvm/aarch64/vpmu_counter_access.c | 32 +- .../selftests/kvm/include/aarch64/vpmu.h | 28 ++ 4 files changed, 387 insertions(+), 26 deletions(-) create mode 100644 tools/testing/selftests/kvm/aarch64/pmu_event_filter_test.c create mode 100644 tools/testing/selftests/kvm/include/aarch64/vpmu.h