From nobody Fri Sep 12 13:36:46 2025 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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 70374C6FD19 for ; Sat, 11 Mar 2023 00:49:20 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231185AbjCKAtS (ORCPT ); Fri, 10 Mar 2023 19:49:18 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:38206 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230021AbjCKAs2 (ORCPT ); Fri, 10 Mar 2023 19:48:28 -0500 Received: from mail-pj1-x1049.google.com (mail-pj1-x1049.google.com [IPv6:2607:f8b0:4864:20::1049]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 08EDF13E0A1 for ; Fri, 10 Mar 2023 16:47:28 -0800 (PST) Received: by mail-pj1-x1049.google.com with SMTP id mm13-20020a17090b358d00b002377ec65e7aso5061268pjb.7 for ; Fri, 10 Mar 2023 16:47:28 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20210112; t=1678495619; h=cc:to:from:subject:message-id:references:mime-version:in-reply-to :date:reply-to:from:to:cc:subject:date:message-id:reply-to; bh=TM0EcdyR+iQodypxNgMstja1NjDzbXCLluws31y0Y4g=; b=ZBbk159wt5l6UBv4QH5eTyNTwkgV+nu/eqBcq3NcB0T7RFO2GZtpHZUTjmYUjMH5NW tje2qxq7wXS5nMEPgdA1LytSLK9RAg8l3IKFaf47KMKlQfMJoRAnIMn6I+pI3euB4ZJH a1URbCQyyajHpNEYUBYxqpHZEUKP80ZOcWVxo9EvF459FPRMX2NN22gVpGDUxwNigRif w/Ph0rKREQscznfR3Dw3a/xF2Xly6rwwYYzvkZNUsRaAdCNOKsNYgdkGrI+RWDS3jNsT gla4sR8Zlmh9REIVmirpUBpFrNOrEEwo7qqKx5Y57G54xHqzmkRpSQHPmTpPyt3Q6VKE Qc2g== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; t=1678495619; h=cc:to:from:subject:message-id:references:mime-version:in-reply-to :date:reply-to:x-gm-message-state:from:to:cc:subject:date:message-id :reply-to; bh=TM0EcdyR+iQodypxNgMstja1NjDzbXCLluws31y0Y4g=; b=aKy6yAhW5zqm2kWKx5nB8+rnJxHI6AgwAbUzyOH75hr5ZqZC4GRw7/PHHbW8ghxGZm 07cDTrdt4bg99rrk2++09HDpjov4cbXPpFGiZjSfOXu9BdEjQ41NjB6Y5MfU1NLqvKZd vayIBTshk0UmEBTYRIDNPbR5TbyJ9CIYJpNjnbOtsXZFip/SegSy1uA7hQKfkk9mJEBC CcTRbOX/ddtE+IaI+m+c8ZfUosaerwaNodvN5UYvebeQStdSL//d9kqgAF0KM40Jg7yO f9dqMUPp0IBwHp+/nXCTFCbavQiMBhJYvkzqZUv20vX6ZzrhdPcKHiylDFArrqIy4n66 dAtw== X-Gm-Message-State: AO0yUKUvQkQFltAWN09WSInjHrsi5FM1VDTIOTFaOmw3XzKOB8uFXyz6 OQu63T0lwE2jHbztVk4MDLrX2cCAb+k= X-Google-Smtp-Source: AK7set9LXxplb54jbkGT2IEAHEj02At0I5VKSYv6GzL1BF9jwSJ68N7YOkkOuNPUw6tYdY73po0vJfaLDTU= X-Received: from zagreus.c.googlers.com ([fda3:e722:ac3:cc00:7f:e700:c0a8:5c37]) (user=seanjc job=sendgmr) by 2002:a17:90a:69c4:b0:233:bc72:1c69 with SMTP id s62-20020a17090a69c400b00233bc721c69mr9581314pjj.9.1678495619325; Fri, 10 Mar 2023 16:46:59 -0800 (PST) Reply-To: Sean Christopherson Date: Fri, 10 Mar 2023 16:46:17 -0800 In-Reply-To: <20230311004618.920745-1-seanjc@google.com> Mime-Version: 1.0 References: <20230311004618.920745-1-seanjc@google.com> X-Mailer: git-send-email 2.40.0.rc1.284.g88254d51c5-goog Message-ID: <20230311004618.920745-21-seanjc@google.com> Subject: [PATCH v3 20/21] KVM: selftests: Add negative testcase for PEBS format in PERF_CAPABILITIES From: Sean Christopherson To: Sean Christopherson , Paolo Bonzini Cc: kvm@vger.kernel.org, linux-kernel@vger.kernel.org, Xiaoyao Li , Like Xu , Yu Zhang Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" Expand the immutable features sub-test for PERF_CAPABILITIES to verify KVM rejects any attempt to use a PEBS format other than the host's. Signed-off-by: Sean Christopherson --- tools/testing/selftests/kvm/x86_64/vmx_pmu_caps_test.c | 10 ++++++++++ 1 file changed, 10 insertions(+) diff --git a/tools/testing/selftests/kvm/x86_64/vmx_pmu_caps_test.c b/tools= /testing/selftests/kvm/x86_64/vmx_pmu_caps_test.c index 38aec88d733b..29aaa0419294 100644 --- a/tools/testing/selftests/kvm/x86_64/vmx_pmu_caps_test.c +++ b/tools/testing/selftests/kvm/x86_64/vmx_pmu_caps_test.c @@ -191,6 +191,16 @@ static void test_immutable_perf_capabilities(union per= f_capabilities host_cap) val.lbr_format, host_cap.lbr_format); } =20 + /* Ditto for the PEBS format. */ + for (val.pebs_format =3D 1; val.pebs_format; val.pebs_format++) { + if (val.pebs_format =3D=3D host_cap.pebs_format) + continue; + + r =3D _vcpu_set_msr(vcpu, MSR_IA32_PERF_CAPABILITIES, val.capabilities); + TEST_ASSERT(!r, "Bad PEBS FMT =3D 0x%x didn't fail, host =3D 0x%x", + val.pebs_format, host_cap.pebs_format); + } + kvm_vm_free(vm); } =20 --=20 2.40.0.rc1.284.g88254d51c5-goog