From patchwork Wed Jun 19 08:31:56 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Shaoqin Huang X-Patchwork-Id: 13703526 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 871EF8062E for ; Wed, 19 Jun 2024 08:32:28 +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=1718785950; cv=none; b=CsDzR6kTey58R1GBM8xwbTPt+CWxDNkawiwODRx5EfSubXSNfKD+1OLIEoh8OLI4cG/F+bdL2Iuiz00AE0Hh/Spb6YWGIyHF10v4uQVR0O4uupnBv/frAW4vyTZNOYD3Ec0G+H7zA0BRFh5BdDk8/EepT/Ur9i2jHdTPefbRVRo= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1718785950; c=relaxed/simple; bh=I96RkC4xfGimI+iZ2geT9XHUh0BU0vYjRgveulZ7u5M=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=Q/Uu1gA3afk3RVLwDm/5dGX98mZw5JoWkKSBzxhhU3g1H85dMu4Dm3vKWKMjATpqh5o6sf2/z7O4/EO8Ey4Rxv3FG2uBNqw0uNMRwrTz94Sk8tw4nn3N98+QsNjFClPVQR2vKDDX3DprcyM2VXPrEtHhzGMdMYg872jj2xKqR+Y= 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=YpjtO1A2; 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="YpjtO1A2" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1718785947; 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: in-reply-to:in-reply-to:references:references; bh=YOUVrsFqTcI6hNO1ofc9efuSDWP7z/I3VahfSx2CWU4=; b=YpjtO1A2atTzMQGR0R8LC8hdOSUzLSie9thWsWhslJBdIfzrXmIfssdDru4Q2lxNIHS6cj i9LcSLekRvv1Zo0hyn785VyV9fGXed2yIAMYBHjkfVDhUwM8017L8SCV7szs0Je9HbGjJd CoP+ph+uJpj1iDP0u9oc4ANKhOp5/t0= Received: from mx-prod-mc-01.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-482-bwNdooy7PYmIH39rXBvjfw-1; Wed, 19 Jun 2024 04:32:21 -0400 X-MC-Unique: bwNdooy7PYmIH39rXBvjfw-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-01.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTPS id AA4ED195609E; Wed, 19 Jun 2024 08:32:19 +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 4D43C19560AF; Wed, 19 Jun 2024 08:32:17 +0000 (UTC) From: Shaoqin Huang To: Oliver Upton , Marc Zyngier , kvmarm@lists.linux.dev Cc: Shaoqin Huang , Raghavendra Rao Ananta , Eric Auger , James Morse , Suzuki K Poulose , Zenghui Yu , Paolo Bonzini , Shuah Khan , linux-arm-kernel@lists.infradead.org, kvm@vger.kernel.org, linux-kselftest@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH v10 3/3] KVM: selftests: aarch64: Add invalid filter test in pmu_event_filter_test Date: Wed, 19 Jun 2024 04:31:56 -0400 Message-Id: <20240619083200.1047073-4-shahuang@redhat.com> In-Reply-To: <20240619083200.1047073-1-shahuang@redhat.com> References: <20240619083200.1047073-1-shahuang@redhat.com> Precedence: bulk X-Mailing-List: kvm@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Scanned-By: MIMEDefang 3.0 on 10.30.177.40 Add the invalid filter test which sets the filter beyond the event space and sets the invalid action to double check if the KVM_ARM_VCPU_PMU_V3_FILTER will return the expected error. Reviewed-by: Raghavendra Rao Ananta Reviewed-by: Eric Auger Signed-off-by: Shaoqin Huang --- .../kvm/aarch64/pmu_event_filter_test.c | 38 +++++++++++++++++++ 1 file changed, 38 insertions(+) diff --git a/tools/testing/selftests/kvm/aarch64/pmu_event_filter_test.c b/tools/testing/selftests/kvm/aarch64/pmu_event_filter_test.c index 308b8677e08e..1abbe6d8deb2 100644 --- a/tools/testing/selftests/kvm/aarch64/pmu_event_filter_test.c +++ b/tools/testing/selftests/kvm/aarch64/pmu_event_filter_test.c @@ -8,6 +8,7 @@ * This test checks if the guest only see the limited pmu event that userspace * sets, if the guest can use those events which user allow, and if the guest * can't use those events which user deny. + * It also checks that setting invalid filter ranges return the expected error. * This test runs only when KVM_CAP_ARM_PMU_V3, KVM_ARM_VCPU_PMU_V3_FILTER * is supported on the host. */ @@ -31,6 +32,7 @@ struct vpmu_vm { static struct vpmu_vm vpmu_vm; +#define KVM_PMU_EVENT_INVALID 3 #define FILTER_NR 10 struct test_desc { @@ -181,6 +183,40 @@ static void destroy_vpmu_vm(void) kvm_vm_free(vpmu_vm.vm); } +static void test_invalid_filter(void) +{ + struct kvm_pmu_event_filter invalid; + int ret; + + pr_info("Test: test_invalid_filter\n"); + + memset(&vpmu_vm, 0, sizeof(vpmu_vm)); + + vpmu_vm.vm = vm_create(1); + vpmu_vm.vcpu = vm_vcpu_add_with_vpmu(vpmu_vm.vm, 0, guest_code); + vpmu_vm.gic_fd = vgic_v3_setup(vpmu_vm.vm, 1, 64); + __TEST_REQUIRE(vpmu_vm.gic_fd >= 0, + "Failed to create vgic-v3, skipping"); + + /* The max event number is (1 << 16), set a range largeer than it. */ + invalid = __DEFINE_FILTER(BIT(15), BIT(15) + 1, KVM_PMU_EVENT_ALLOW); + ret = __kvm_device_attr_set(vpmu_vm.vcpu->fd, KVM_ARM_VCPU_PMU_V3_CTRL, + KVM_ARM_VCPU_PMU_V3_FILTER, &invalid); + TEST_ASSERT(ret && errno == EINVAL, "Set Invalid filter range " + "ret = %d, errno = %d (expected ret = -1, errno = EINVAL)", + ret, errno); + + /* Set the Invalid action. */ + invalid = __DEFINE_FILTER(0, 1, KVM_PMU_EVENT_INVALID); + ret = __kvm_device_attr_set(vpmu_vm.vcpu->fd, KVM_ARM_VCPU_PMU_V3_CTRL, + KVM_ARM_VCPU_PMU_V3_FILTER, &invalid); + TEST_ASSERT(ret && errno == EINVAL, "Set Invalid filter action " + "ret = %d, errno = %d (expected ret = -1, errno = EINVAL)", + ret, errno); + + destroy_vpmu_vm(); +} + static void run_test(struct test_desc *t) { pr_info("Test: %s\n", t->name); @@ -311,4 +347,6 @@ int main(void) TEST_REQUIRE(kvm_pmu_support_events()); run_tests(); + + test_invalid_filter(); }