From patchwork Tue Jan 16 06:01:18 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Shaoqin Huang X-Patchwork-Id: 13520469 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 34DB0C47077 for ; Tue, 16 Jan 2024 06:03:35 +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=6D0C/Bw2Q3FonfWr/3gG+aMWRHaFIUfCuzIttf8751M=; b=RV7GWdAdBuUvIO 90A/7xOqgThyBByBnrCs8HEMX5GnLgcVz/p4t56bHTcuuI4KHioEConHlY1afeFw9WuLyAlB3m016 rakyBY9NTJzQYjiNkFg2eiAL2Dj4rIOceVx1LhIaiqV5na/h4fXzWfkYObCmUgXUDyXYdg2OgNvN5 XawrdxZMBqDv0uFqaKEhriK/Hxoz8xE51W47i/Y1rlRfivJXpxu3qRyiLsgwkjn4nQg5i9jqDGRxk 0vcwyhVZL8r8mZCL3Zbw6uOQjQN6XE03tJlVMudocFfFA63POQ7hkwpT9jkIk8LtSrzCjOp1ASkEi C88QaNCjzzTrjS/zRkUw==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.96 #2 (Red Hat Linux)) id 1rPcXW-00B4CZ-39; Tue, 16 Jan 2024 06:03:10 +0000 Received: from us-smtp-delivery-124.mimecast.com ([170.10.133.124]) by bombadil.infradead.org with esmtps (Exim 4.96 #2 (Red Hat Linux)) id 1rPcXU-00B4B3-14 for linux-arm-kernel@lists.infradead.org; Tue, 16 Jan 2024 06:03:09 +0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1705384986; 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=WlPhpBHgPBW4epHtfgvsYfoDGE7LvKbEMtJ+P0WHH8k=; b=SiqqWuO4nnrePhi8+jwhmEAu/lgfsW7mxrjPA8Ai4pggTCrh1Nk0s5rYSpFRFzouhaJBp3 JErV/k1b0xRoj3SLrXIBqqPyb51EOxDMcYIoiw9ZBeqwem/62HmoLKsD4UPZ9zHhlq721u rMTtHqwur72nqZp7nHkKrT5WWoyUaFo= 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-3-oJch4i_sP22KV71D6xItuA-1; Tue, 16 Jan 2024 01:01:31 -0500 X-MC-Unique: oJch4i_sP22KV71D6xItuA-1 Received: from smtp.corp.redhat.com (int-mx04.intmail.prod.int.rdu2.redhat.com [10.11.54.4]) (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 5DAFB839BB3; Tue, 16 Jan 2024 06:01:31 +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 EADEC2027042; Tue, 16 Jan 2024 06:01:30 +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 v3 0/5] KVM: selftests: aarch64: Introduce pmu_event_filter_test Date: Tue, 16 Jan 2024 01:01:18 -0500 Message-Id: <20240116060129.55473-1-shahuang@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 3.4.1 on 10.11.54.4 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20240115_220308_528882_A43A1BC3 X-CRM114-Status: GOOD ( 12.92 ) 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 move some pmu common code from vpmu_counter_access to lib/aarch64/vpmu.c and include/aarch64/vpmu.h, which can be used by pmu_event_filter_test. Then fix a bug related to the [enable|disable]_counter, and at last, implement the test itself. Changelog: ---------- 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/ Shaoqin Huang (5): KVM: selftests: aarch64: Make the [create|destroy]_vpmu_vm() public KVM: selftests: aarch64: Move pmu helper functions into vpmu.h KVM: selftests: aarch64: Fix the buggy [enable|disable]_counter 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 | 2 + .../kvm/aarch64/pmu_event_filter_test.c | 255 ++++++++++++++++++ .../kvm/aarch64/vpmu_counter_access.c | 218 ++------------- .../selftests/kvm/include/aarch64/vpmu.h | 135 ++++++++++ .../testing/selftests/kvm/lib/aarch64/vpmu.c | 74 +++++ 5 files changed, 490 insertions(+), 194 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 create mode 100644 tools/testing/selftests/kvm/lib/aarch64/vpmu.c