From patchwork Tue Apr 9 03:03:13 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Shaoqin Huang X-Patchwork-Id: 13621738 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 C4C3DC67861 for ; Tue, 9 Apr 2024 03:08:36 +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=7ZEudzYHi2heTIc5kjZU63EgoZTC1RaSKIBdV5fDkBk=; b=iImgEnf2qdj2gz Ar6hudwN6ahXqhBbLlqVcJEpMOnwiJA1SsBXeXSZOLobpWk2WWKsRjuAJiDbCfelTjbzx52FXZR7D pM5qxFAua9ElCU0JTw25SKNlBlw7pIdqrA/e25lVsYRsBW1z6pZf247xwVqsUehCO9AvSytDG+jvV 2KJFaGsO51NcY8FMS3QhTkCztou2otscW+U0f4bWP18uelcYM7qe14py9GAbgq0fYPnGTmTAZ0ICF FGqBqQMfPlTzIob7WiCnaLkQzDmjbdct8qcvEIOjF+LB7hjCkzBhVUad7apJwKjb4nOjsskC6Qeq6 H7eQ7YJ6pMEFAVsGy0YA==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.97.1 #2 (Red Hat Linux)) id 1ru1qQ-000000004Pp-0Wqi; Tue, 09 Apr 2024 03:08:22 +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 1ru1oj-000000002u5-23IH for linux-arm-kernel@lists.infradead.org; Tue, 09 Apr 2024 03:06:48 +0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1712631992; 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=oZkhwxc1rV+er5vlPURBYWccH3WvtLWNURgRz3mDLRM=; b=UOLVCgraURcUZhhXx7SaPG3F9DN0ZXbrWm0KYTFjjPeAWSfzNbOOIeyXFW3ouF9yjFw8Yg JgjX5Ms+r9dc/SWImmJnDSzi1FYeGInuSPe4ezrtc4s/PJUFuPIOYqj/i76oxIqqJo+PZz gOCFnzE0DdPSL2cpwX1ZvFfvx8rmNk8= 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-63-UutkogDIMyqz7slyz7zimg-1; Mon, 08 Apr 2024 23:06:27 -0400 X-MC-Unique: UutkogDIMyqz7slyz7zimg-1 Received: from smtp.corp.redhat.com (int-mx05.intmail.prod.int.rdu2.redhat.com [10.11.54.5]) (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 AB65E1C03162; Tue, 9 Apr 2024 03:06:26 +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 64DA717AB1; Tue, 9 Apr 2024 03:06:26 +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 v7 0/3] KVM: selftests: aarch64: Introduce pmu_event_filter_test Date: Mon, 8 Apr 2024 23:03:13 -0400 Message-Id: <20240409030320.182591-1-shahuang@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 3.4.1 on 10.11.54.5 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20240408_200639_721272_CB04E8CB X-CRM114-Status: GOOD ( 15.67 ) 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: ---------- 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/ 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 | 336 ++++++++++++++++++ .../kvm/aarch64/vpmu_counter_access.c | 33 +- .../selftests/kvm/include/aarch64/vpmu.h | 28 ++ 4 files changed, 372 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