From patchwork Thu Feb 29 06:56:18 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Shaoqin Huang X-Patchwork-Id: 13576653 Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.133.124]) (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 4AE134437C for ; Thu, 29 Feb 2024 06:58:00 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=170.10.133.124 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1709189882; cv=none; b=TBujzB8sA1zTbzgrRBF3QOopY6W3cgVkMqEoqnLv4RYEaAoCkRGYEHPUh0Y4R1rmsOnZvH0SLdAspLdCPlGPk9dtQe6SepirqW+8+I7MThdIEz8eGLjW6nqX+or/ecQBZLchr71R7eWGVWOOEOKc9JIu9GOx6KDRB0+Va3pQg9s= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1709189882; c=relaxed/simple; bh=YJig5ebYDQY5wtAFytmqoCfXqJMvgCsZZ5rmGbjcLVQ=; h=From:To:Cc:Subject:Date:Message-Id:MIME-Version; b=CJUAwnNWlu+/zNjms8yuHG3gvMcDDEcAuqc6DH5x+IkNAk9hBoVXb/uP+ivZJG01Dd1rZnM8ibXa5CxzuI0aGkh+docG1B1nUsvHuf64C+Mu9Kk2OCuZ27kOaPHTJo5b1mZnGbbeJqoIhJZqCKRsxQjnT0MLwaEMqDg1mzVA9JE= 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=Si1n1yTs; arc=none smtp.client-ip=170.10.133.124 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="Si1n1yTs" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1709189877; 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=7nd7E2+HpEQtuS8MhHXByc9SOCzXfhgdn+43wVJB1Iw=; b=Si1n1yTsy3A0bZ8p8F3//yR2ondkDAWp7OTTzbm6UTsE/aQV0Qz8l9feiS+oVv6mPJg3Cf Mm6IF/mYGSEPbAT3Qk2yBOs+tJTrMTS7PqkQpqXpSdef7eiv33wvpk+lHhpjGn7wqegttW 9lB7uTUTFldJ0+i+fA+M6GSsyiJ9ojQ= Received: from mimecast-mx02.redhat.com (mx-ext.redhat.com [66.187.233.73]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3, cipher=TLS_AES_256_GCM_SHA384) id us-mta-244-yPUgX7eQNzW3MNiR-31mPw-1; Thu, 29 Feb 2024 01:57:54 -0500 X-MC-Unique: yPUgX7eQNzW3MNiR-31mPw-1 Received: from smtp.corp.redhat.com (int-mx01.intmail.prod.int.rdu2.redhat.com [10.11.54.1]) (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 mimecast-mx02.redhat.com (Postfix) with ESMTPS id 99A283C11A05; Thu, 29 Feb 2024 06:57:53 +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 smtp.corp.redhat.com (Postfix) with ESMTP id 37F83F63EA; Thu, 29 Feb 2024 06:57:53 +0000 (UTC) From: Shaoqin Huang To: Oliver Upton , Marc Zyngier , kvmarm@lists.linux.dev Cc: Eric Auger , 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 v5 0/3] KVM: selftests: aarch64: Introduce pmu_event_filter_test Date: Thu, 29 Feb 2024 01:56:18 -0500 Message-Id: <20240229065625.114207-1-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 3.4.1 on 10.11.54.1 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: ---------- 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] v1: https://lore.kernel.org/all/20231123063750.2176250-1-shahuang@redhat.com/ v2: https://lore.kernel.org/all/20231129072712.2667337-1-shahuang@redhat.com/ v3: https://lore.kernel.org/all/20240116060129.55473-1-shahuang@redhat.com/ v4: https://lore.kernel.org/all/20240202025659.5065-1-shahuang@redhat.com/ 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 | 325 ++++++++++++++++++ .../kvm/aarch64/vpmu_counter_access.c | 33 +- .../selftests/kvm/include/aarch64/vpmu.h | 29 ++ 4 files changed, 362 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