From patchwork Thu May 9 09:05:37 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Shaoqin Huang X-Patchwork-Id: 13659575 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id E9B14C10F1A for ; Thu, 9 May 2024 09:06:11 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:Message-Id:Date:Subject:Cc :To:From:Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:In-Reply-To:References: List-Owner; bh=K2K+bs2Z5pgVcrKSOEGiP4vZ8HLCodYc1E4Od2v7z1Y=; b=Fdv11jSfwFtwQO 71Hu5w44Qams4Ecu5HLQ8J+q2R89zdjPB14C9JhHOHvzze1pWh4jKpLvdewuwAgnSLfoWT1eculyg uZPFtweJ7CrsjLXmfPcKu5OTPxzS8HlKiExnxMpU4/jo2jkM/4YjmDX/gXUBDwlSPtO+9rSt/WocA QEFPEAXyWEEZFX8C3B/8jzsYQ6c59HcB7CqOxVNg93DM01F/dnez3IZlH7pSQJZsn4Lj4P/H5aAUI e94Abm9nqTbGbGpXpDXE5hCI1mybsia4/aXb8RL9EMKFmu8ef3R0aywyr3Q/rgGu28sR5N6Faris5 heR65Rx6ihVRmJnwY3pQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.97.1 #2 (Red Hat Linux)) id 1s4zix-00000000urL-1MfK; Thu, 09 May 2024 09:05:59 +0000 Received: from us-smtp-delivery-124.mimecast.com ([170.10.129.124]) by bombadil.infradead.org with esmtps (Exim 4.97.1 #2 (Red Hat Linux)) id 1s4zit-00000000upG-1YC0 for linux-arm-kernel@lists.infradead.org; Thu, 09 May 2024 09:05:58 +0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1715245553; 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=NVQ1c5a/Gn0sHOszixuPO6X2zUGo2QIz8lY+zhqCbSk=; b=NwkfbscUDmIWhHvUnokDYGhu03NWNIMtu37Yc1wJoBQaEbiRppCNolBe1j+oP9Dj5RhK6M aL3oxjjaX4P5a4NcecYJw+yP5/8QRVElNwPof6ln5TjAbs2RgjjI8rFaGAb6Ejes53r1Zn FPbeuX29BCKDsOvM8acVjdno6IuM5ik= Received: from mimecast-mx02.redhat.com (mimecast-mx02.redhat.com [66.187.233.88]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3, cipher=TLS_AES_256_GCM_SHA384) id us-mta-341-MuTf8LtMNaaRqDme3QHCvw-1; Thu, 09 May 2024 05:05:52 -0400 X-MC-Unique: MuTf8LtMNaaRqDme3QHCvw-1 Received: from smtp.corp.redhat.com (int-mx03.intmail.prod.int.rdu2.redhat.com [10.11.54.3]) (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 67C3F101A52C; Thu, 9 May 2024 09:05:51 +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 02D2710004EF; Thu, 9 May 2024 09:05:50 +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 v8 0/3] KVM: selftests: aarch64: Introduce pmu_event_filter_test Date: Thu, 9 May 2024 05:05:37 -0400 Message-Id: <20240509090544.2063429-1-shahuang@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 3.4.1 on 10.11.54.3 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20240509_020555_556110_61BE64E9 X-CRM114-Status: GOOD ( 15.69 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org 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: ---------- 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] 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/ v5: https://lore.kernel.org/all/20240229065625.114207-1-shahuang@redhat.com/ v6: https://lore.kernel.org/all/20240326033706.117189-1-shahuang@redhat.com/ v7: https://lore.kernel.org/all/20240409030320.182591-1-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 | 341 ++++++++++++++++++ .../kvm/aarch64/vpmu_counter_access.c | 32 +- .../selftests/kvm/include/aarch64/vpmu.h | 28 ++ 4 files changed, 376 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