From mboxrd@z Thu Jan 1 00:00:00 1970 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 6EB79C433EF for ; Wed, 4 May 2022 22:55:14 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1379687AbiEDW6s (ORCPT ); Wed, 4 May 2022 18:58:48 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:44754 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1379293AbiEDWyf (ORCPT ); Wed, 4 May 2022 18:54:35 -0400 Received: from mail-pl1-x64a.google.com (mail-pl1-x64a.google.com [IPv6:2607:f8b0:4864:20::64a]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 3C13553722 for ; Wed, 4 May 2022 15:50:58 -0700 (PDT) Received: by mail-pl1-x64a.google.com with SMTP id u8-20020a170903124800b0015195a5826cso1375925plh.4 for ; Wed, 04 May 2022 15:50:58 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20210112; h=reply-to:date:in-reply-to:message-id:mime-version:references :subject:from:to:cc; bh=mMUKfkcQC6L2kdy7xknNE50/OMw8bniryDEa4z4qs9I=; b=fdx3M/7h7rkKdXdafQub7PqbXrtTqfTizk3A2viNauhZy47P+qkfQ8R2DMgP9BcCSO ayKId/0ecnEfanpZXRo73yGeoyYJOa8n98JXTjiLspPc0bHLCu5owMfIlEBKfaESxvxV VgjmIRK2T9wqT4Cy+pnsos1VW3F+vQWrOpA5604jKuikkkCP7GwhN47gQJv+AjdANhBI bvEpVf8L8EcRK34TdKBhzjZk/gqpqpDf6KjcUbFLAhXsROeWapc6yc8VDL7VZHsv6vx1 NHtv0+PaCIV+qRnKjwPOv14GRNAZpCpXdtopryDdX9GSMn9zlBsFTk8EyrpmzutnkcPv Rujw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:reply-to:date:in-reply-to:message-id :mime-version:references:subject:from:to:cc; bh=mMUKfkcQC6L2kdy7xknNE50/OMw8bniryDEa4z4qs9I=; b=eDzgm/n61Aw7G/n7c1NBd9/LW27x6x5CKWJfzB8ZUpmEJTVwoFbEuFO8NMYKXhciTc ZIxWKQPSy29Ul9LxJsU+coo3DNIQpGr6OOUfXn+JULF54sdIIu1ChmZ6/WxgyUb/mZrV Eihcf4rXAE7wMn3nHp8oPrv1LQDLmrv/cBQetLzMYmxhsDA0hh5YSgfDN3AtteDraOYE y/TURymh/vHmJeI7EPvD6u/p18sRS8gKTH5Z50RUowT8sWKbXB20+Dko7KSvP+5OLL3H KFpsXMhlw1Oyteh+79UnIOE88MQmk7V57vroidNMe5rXshj7JFeqwyajPoUSg2MtMudD siEg== X-Gm-Message-State: AOAM5332MES8LIwfjkBo5XgwJhYIrVw+0Nlp+Fd4ZJZKnZVPqvQaO8bh sx7iYY1tlNqchjv0QJsKvL/EjL6Sdz4= X-Google-Smtp-Source: ABdhPJyFxNz4GZ9ZUvS+BVWwN7Twas5+Rzy0ZUqZiCQgzx8MTRo31AnX4dAZ616o1972u9HeX7D0wTFNVCo= X-Received: from seanjc.c.googlers.com ([fda3:e722:ac3:cc00:7f:e700:c0a8:3e5]) (user=seanjc job=sendgmr) by 2002:a17:903:1105:b0:154:c850:860b with SMTP id n5-20020a170903110500b00154c850860bmr24320747plh.12.1651704657767; Wed, 04 May 2022 15:50:57 -0700 (PDT) Reply-To: Sean Christopherson Date: Wed, 4 May 2022 22:47:56 +0000 In-Reply-To: <20220504224914.1654036-1-seanjc@google.com> Message-Id: <20220504224914.1654036-51-seanjc@google.com> Mime-Version: 1.0 References: <20220504224914.1654036-1-seanjc@google.com> X-Mailer: git-send-email 2.36.0.464.gb9c8b46e94-goog Subject: [PATCH 050/128] KVM: selftests: Convert pmu_event_filter_test away from VCPU_ID From: Sean Christopherson To: Paolo Bonzini Cc: linux-kernel@vger.kernel.org, kvm@vger.kernel.org, Vitaly Kuznetsov , Andrew Jones , David Matlack , Ben Gardon , Oliver Upton , Sean Christopherson Content-Type: text/plain; charset="UTF-8" Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Convert pmu_event_filter_test to use vm_create_with_one_vcpu() and pass around a 'struct kvm_vcpu' object instead of using a global VCPU_ID. Rename run_vm_to_sync() to run_vcpu_to_sync() accordingly. Signed-off-by: Sean Christopherson --- .../kvm/x86_64/pmu_event_filter_test.c | 69 ++++++++++--------- 1 file changed, 36 insertions(+), 33 deletions(-) diff --git a/tools/testing/selftests/kvm/x86_64/pmu_event_filter_test.c b/tools/testing/selftests/kvm/x86_64/pmu_event_filter_test.c index 93af4ad728d8..535af2d2ad59 100644 --- a/tools/testing/selftests/kvm/x86_64/pmu_event_filter_test.c +++ b/tools/testing/selftests/kvm/x86_64/pmu_event_filter_test.c @@ -49,7 +49,6 @@ union cpuid10_ebx { /* Oddly, this isn't in perf_event.h. */ #define ARCH_PERFMON_BRANCHES_RETIRED 5 -#define VCPU_ID 0 #define NUM_BRANCHES 42 /* @@ -173,17 +172,17 @@ static void amd_guest_code(void) * Run the VM to the next GUEST_SYNC(value), and return the value passed * to the sync. Any other exit from the guest is fatal. */ -static uint64_t run_vm_to_sync(struct kvm_vm *vm) +static uint64_t run_vcpu_to_sync(struct kvm_vcpu *vcpu) { - struct kvm_run *run = vcpu_state(vm, VCPU_ID); + struct kvm_run *run = vcpu->run; struct ucall uc; - vcpu_run(vm, VCPU_ID); + vcpu_run(vcpu->vm, vcpu->id); TEST_ASSERT(run->exit_reason == KVM_EXIT_IO, "Exit_reason other than KVM_EXIT_IO: %u (%s)\n", run->exit_reason, exit_reason_str(run->exit_reason)); - get_ucall(vm, VCPU_ID, &uc); + get_ucall(vcpu->vm, vcpu->id, &uc); TEST_ASSERT(uc.cmd == UCALL_SYNC, "Received ucall other than UCALL_SYNC: %lu", uc.cmd); return uc.args[1]; @@ -197,13 +196,13 @@ static uint64_t run_vm_to_sync(struct kvm_vm *vm) * a sanity check and then GUEST_SYNC(success). In the case of failure, * the behavior of the guest on resumption is undefined. */ -static bool sanity_check_pmu(struct kvm_vm *vm) +static bool sanity_check_pmu(struct kvm_vcpu *vcpu) { bool success; - vm_install_exception_handler(vm, GP_VECTOR, guest_gp_handler); - success = run_vm_to_sync(vm); - vm_install_exception_handler(vm, GP_VECTOR, NULL); + vm_install_exception_handler(vcpu->vm, GP_VECTOR, guest_gp_handler); + success = run_vcpu_to_sync(vcpu); + vm_install_exception_handler(vcpu->vm, GP_VECTOR, NULL); return success; } @@ -254,9 +253,9 @@ static struct kvm_pmu_event_filter *remove_event(struct kvm_pmu_event_filter *f, return f; } -static void test_without_filter(struct kvm_vm *vm) +static void test_without_filter(struct kvm_vcpu *vcpu) { - uint64_t count = run_vm_to_sync(vm); + uint64_t count = run_vcpu_to_sync(vcpu); if (count != NUM_BRANCHES) pr_info("%s: Branch instructions retired = %lu (expected %u)\n", @@ -264,17 +263,17 @@ static void test_without_filter(struct kvm_vm *vm) TEST_ASSERT(count, "Allowed PMU event is not counting"); } -static uint64_t test_with_filter(struct kvm_vm *vm, +static uint64_t test_with_filter(struct kvm_vcpu *vcpu, struct kvm_pmu_event_filter *f) { - vm_ioctl(vm, KVM_SET_PMU_EVENT_FILTER, (void *)f); - return run_vm_to_sync(vm); + vm_ioctl(vcpu->vm, KVM_SET_PMU_EVENT_FILTER, (void *)f); + return run_vcpu_to_sync(vcpu); } -static void test_member_deny_list(struct kvm_vm *vm) +static void test_member_deny_list(struct kvm_vcpu *vcpu) { struct kvm_pmu_event_filter *f = event_filter(KVM_PMU_EVENT_DENY); - uint64_t count = test_with_filter(vm, f); + uint64_t count = test_with_filter(vcpu, f); free(f); if (count) @@ -283,10 +282,10 @@ static void test_member_deny_list(struct kvm_vm *vm) TEST_ASSERT(!count, "Disallowed PMU Event is counting"); } -static void test_member_allow_list(struct kvm_vm *vm) +static void test_member_allow_list(struct kvm_vcpu *vcpu) { struct kvm_pmu_event_filter *f = event_filter(KVM_PMU_EVENT_ALLOW); - uint64_t count = test_with_filter(vm, f); + uint64_t count = test_with_filter(vcpu, f); free(f); if (count != NUM_BRANCHES) @@ -295,14 +294,14 @@ static void test_member_allow_list(struct kvm_vm *vm) TEST_ASSERT(count, "Allowed PMU event is not counting"); } -static void test_not_member_deny_list(struct kvm_vm *vm) +static void test_not_member_deny_list(struct kvm_vcpu *vcpu) { struct kvm_pmu_event_filter *f = event_filter(KVM_PMU_EVENT_DENY); uint64_t count; remove_event(f, INTEL_BR_RETIRED); remove_event(f, AMD_ZEN_BR_RETIRED); - count = test_with_filter(vm, f); + count = test_with_filter(vcpu, f); free(f); if (count != NUM_BRANCHES) pr_info("%s: Branch instructions retired = %lu (expected %u)\n", @@ -310,14 +309,14 @@ static void test_not_member_deny_list(struct kvm_vm *vm) TEST_ASSERT(count, "Allowed PMU event is not counting"); } -static void test_not_member_allow_list(struct kvm_vm *vm) +static void test_not_member_allow_list(struct kvm_vcpu *vcpu) { struct kvm_pmu_event_filter *f = event_filter(KVM_PMU_EVENT_ALLOW); uint64_t count; remove_event(f, INTEL_BR_RETIRED); remove_event(f, AMD_ZEN_BR_RETIRED); - count = test_with_filter(vm, f); + count = test_with_filter(vcpu, f); free(f); if (count) pr_info("%s: Branch instructions retired = %lu (expected 0)\n", @@ -332,6 +331,7 @@ static void test_not_member_allow_list(struct kvm_vm *vm) */ static void test_pmu_config_disable(void (*guest_code)(void)) { + struct kvm_vcpu *vcpu; int r; struct kvm_vm *vm; struct kvm_enable_cap cap = { 0 }; @@ -346,11 +346,13 @@ static void test_pmu_config_disable(void (*guest_code)(void)) cap.args[0] = KVM_PMU_CAP_DISABLE; vm_enable_cap(vm, &cap); - vm_vcpu_add_default(vm, VCPU_ID, guest_code); + vm_vcpu_add_default(vm, 0, guest_code); vm_init_descriptor_tables(vm); - vcpu_init_descriptor_tables(vm, VCPU_ID); - TEST_ASSERT(!sanity_check_pmu(vm), + vcpu = vcpu_get(vm, 0); + vcpu_init_descriptor_tables(vm, vcpu->id); + + TEST_ASSERT(!sanity_check_pmu(vcpu), "Guest should not be able to use disabled PMU."); kvm_vm_free(vm); @@ -421,6 +423,7 @@ static bool use_amd_pmu(void) int main(int argc, char *argv[]) { void (*guest_code)(void) = NULL; + struct kvm_vcpu *vcpu; struct kvm_vm *vm; int r; @@ -443,21 +446,21 @@ int main(int argc, char *argv[]) exit(KSFT_SKIP); } - vm = vm_create_default(VCPU_ID, 0, guest_code); + vm = vm_create_with_one_vcpu(&vcpu, guest_code); vm_init_descriptor_tables(vm); - vcpu_init_descriptor_tables(vm, VCPU_ID); + vcpu_init_descriptor_tables(vm, vcpu->id); - if (!sanity_check_pmu(vm)) { + if (!sanity_check_pmu(vcpu)) { print_skip("Guest PMU is not functional"); exit(KSFT_SKIP); } - test_without_filter(vm); - test_member_deny_list(vm); - test_member_allow_list(vm); - test_not_member_deny_list(vm); - test_not_member_allow_list(vm); + test_without_filter(vcpu); + test_member_deny_list(vcpu); + test_member_allow_list(vcpu); + test_not_member_deny_list(vcpu); + test_not_member_allow_list(vcpu); kvm_vm_free(vm); -- 2.36.0.464.gb9c8b46e94-goog