From patchwork Thu Nov 11 00:03:09 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: David Matlack X-Patchwork-Id: 12613653 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 mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 89F02C433EF for ; Thu, 11 Nov 2021 00:03:38 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 6D58361241 for ; Thu, 11 Nov 2021 00:03:38 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234357AbhKKAGZ (ORCPT ); Wed, 10 Nov 2021 19:06:25 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:60510 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234334AbhKKAGW (ORCPT ); Wed, 10 Nov 2021 19:06:22 -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 65C98C061208 for ; Wed, 10 Nov 2021 16:03:34 -0800 (PST) Received: by mail-pj1-x1049.google.com with SMTP id y18-20020a17090abd1200b001a4dcd1501cso1913247pjr.4 for ; Wed, 10 Nov 2021 16:03:34 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20210112; h=date:in-reply-to:message-id:mime-version:references:subject:from:to :cc; bh=oPOrXyFFJcoT+Z6YSOHN3QIBuNHlfGqSkus829P7wUs=; b=HmmNcD0/Ux+zJgM2j5LP7dO7EmXmk6eYphyXlBE3G+c1zU99DAeR+sAQb8oUnax8L+ 7xnSZ83lllU2uP8ZvkIovMs0TCAf89cO55ehEoTx8wG5oYlFKz6FBamG31Hs9FCv6P4Y op7xVq5I+Wln12exuyiReNUudTogX9x0wvWMMHXJOveMSk8kPvN9BIM8fqxraRaeHJj7 A5GMOZl5G0CQBINsWsVYjquErPdWCSvBsrUDDV5KDelstCqK+AwgcYnA8Wx7LXrEVW8P sSpwgzsjv0m7Zw4Ffs2rSJR3NvXpDOJ3GDESlgztTBibJDyFfCiAZh6yyxWgO5/idDrc w+bw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:date:in-reply-to:message-id:mime-version :references:subject:from:to:cc; bh=oPOrXyFFJcoT+Z6YSOHN3QIBuNHlfGqSkus829P7wUs=; b=iHSjBETS7yr/qFOuHCiJsqoJEANUN3+C0FoCzeHHGZ48hmlZfGu7hN7DpiAncnBa5u jN66yhsEwDkAZAL/Ex91rVdkzBK/6I1ZO0o30sJQE79m6DkwQVxbfgQUMHKABjo+pxOF +ev7MOAAKcasxU1QWkfoDnqCxZ/l3/OVL3l6tiEVJEBAmgPRxeeouxLPvKyKLWHCkeFf JmAzbpVoRE3fDusKK7F9NZcRUwqZzvon9I2R4fyyZPbEZzVnYH5uFbPnCCqQNsR4vFxz n2aaU1v1Wf1IfNHcoUUWwxtG2B5j+XZJi7J47y/2WHyxv5b2I5UbPJBbh8VHmh345xyk KpEw== X-Gm-Message-State: AOAM533eAHsNKHt9cxy1BSN9LAC5zpLWnSlolCwecpOny38VfV9ssvAN qzvLJcOwxKYQqJgUIRJMJr7UiwnarEqPGQ== X-Google-Smtp-Source: ABdhPJxBV31vclE73Z220pV0LyLT21CYMtHJcdMU4+LvkT5ouC22LkcXdK4DanPShvVJiNLnBdY72aTZj49AsA== X-Received: from dmatlack-heavy.c.googlers.com ([fda3:e722:ac3:cc00:7f:e700:c0a8:19cd]) (user=dmatlack job=sendgmr) by 2002:a05:6a00:807:b0:49f:d6ab:590c with SMTP id m7-20020a056a00080700b0049fd6ab590cmr2979208pfk.32.1636589013916; Wed, 10 Nov 2021 16:03:33 -0800 (PST) Date: Thu, 11 Nov 2021 00:03:09 +0000 In-Reply-To: <20211111000310.1435032-1-dmatlack@google.com> Message-Id: <20211111000310.1435032-12-dmatlack@google.com> Mime-Version: 1.0 References: <20211111000310.1435032-1-dmatlack@google.com> X-Mailer: git-send-email 2.34.0.rc1.387.gb447b232ab-goog Subject: [PATCH v2 11/12] KVM: selftests: Fill per-vCPU struct during "perf_test" VM creation From: David Matlack To: Paolo Bonzini Cc: kvm@vger.kernel.org, Sean Christopherson , Ben Gardon , Andrew Jones , Jim Mattson , Yanan Wang , Peter Xu , Aaron Lewis , David Matlack Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org From: Sean Christopherson Fill the per-vCPU args when creating the perf_test VM instead of having the caller do so. This helps ensure that any adjustments to the number of pages (and thus vcpu_memory_bytes) are reflected in the per-VM args. Automatically filling the per-vCPU args will also allow a future patch to do the sync to the guest during creation. Signed-off-by: Sean Christopherson [Updated access_tracking_perf_test as well.] Signed-off-by: David Matlack Reviewed-by: Ben Gardon --- .../selftests/kvm/access_tracking_perf_test.c | 5 +- .../selftests/kvm/demand_paging_test.c | 5 +- .../selftests/kvm/dirty_log_perf_test.c | 6 +- .../selftests/kvm/include/perf_test_util.h | 6 +- .../selftests/kvm/lib/perf_test_util.c | 71 ++++++++++--------- .../kvm/memslot_modification_stress_test.c | 6 +- 6 files changed, 45 insertions(+), 54 deletions(-) diff --git a/tools/testing/selftests/kvm/access_tracking_perf_test.c b/tools/testing/selftests/kvm/access_tracking_perf_test.c index 5d95113c7b7c..fdef6c906388 100644 --- a/tools/testing/selftests/kvm/access_tracking_perf_test.c +++ b/tools/testing/selftests/kvm/access_tracking_perf_test.c @@ -332,10 +332,7 @@ static void run_test(enum vm_guest_mode mode, void *arg) int vcpus = params->vcpus; vm = perf_test_create_vm(mode, vcpus, params->vcpu_memory_bytes, 1, - params->backing_src); - - perf_test_setup_vcpus(vm, vcpus, params->vcpu_memory_bytes, - !overlap_memory_access); + params->backing_src, !overlap_memory_access); vcpu_threads = create_vcpu_threads(vcpus); diff --git a/tools/testing/selftests/kvm/demand_paging_test.c b/tools/testing/selftests/kvm/demand_paging_test.c index 3c729a0a1ab1..0fee44f5e5ae 100644 --- a/tools/testing/selftests/kvm/demand_paging_test.c +++ b/tools/testing/selftests/kvm/demand_paging_test.c @@ -293,7 +293,7 @@ static void run_test(enum vm_guest_mode mode, void *arg) int r; vm = perf_test_create_vm(mode, nr_vcpus, guest_percpu_mem_size, 1, - p->src_type); + p->src_type, p->partition_vcpu_memory_access); perf_test_args.wr_fract = 1; @@ -307,9 +307,6 @@ static void run_test(enum vm_guest_mode mode, void *arg) vcpu_threads = malloc(nr_vcpus * sizeof(*vcpu_threads)); TEST_ASSERT(vcpu_threads, "Memory allocation failed"); - perf_test_setup_vcpus(vm, nr_vcpus, guest_percpu_mem_size, - p->partition_vcpu_memory_access); - if (p->uffd_mode) { uffd_handler_threads = malloc(nr_vcpus * sizeof(*uffd_handler_threads)); diff --git a/tools/testing/selftests/kvm/dirty_log_perf_test.c b/tools/testing/selftests/kvm/dirty_log_perf_test.c index 7ffab5bd5ce5..62f9cc2a3146 100644 --- a/tools/testing/selftests/kvm/dirty_log_perf_test.c +++ b/tools/testing/selftests/kvm/dirty_log_perf_test.c @@ -186,7 +186,8 @@ static void run_test(enum vm_guest_mode mode, void *arg) struct timespec clear_dirty_log_total = (struct timespec){0}; vm = perf_test_create_vm(mode, nr_vcpus, guest_percpu_mem_size, - p->slots, p->backing_src); + p->slots, p->backing_src, + p->partition_vcpu_memory_access); perf_test_args.wr_fract = p->wr_fract; @@ -206,9 +207,6 @@ static void run_test(enum vm_guest_mode mode, void *arg) vcpu_threads = malloc(nr_vcpus * sizeof(*vcpu_threads)); TEST_ASSERT(vcpu_threads, "Memory allocation failed"); - perf_test_setup_vcpus(vm, nr_vcpus, guest_percpu_mem_size, - p->partition_vcpu_memory_access); - sync_global_to_guest(vm, perf_test_args); /* Start the iterations */ diff --git a/tools/testing/selftests/kvm/include/perf_test_util.h b/tools/testing/selftests/kvm/include/perf_test_util.h index 9348580dc5be..91804be1cf53 100644 --- a/tools/testing/selftests/kvm/include/perf_test_util.h +++ b/tools/testing/selftests/kvm/include/perf_test_util.h @@ -39,10 +39,8 @@ extern struct perf_test_args perf_test_args; struct kvm_vm *perf_test_create_vm(enum vm_guest_mode mode, int vcpus, uint64_t vcpu_memory_bytes, int slots, - enum vm_mem_backing_src_type backing_src); + enum vm_mem_backing_src_type backing_src, + bool partition_vcpu_memory_access); void perf_test_destroy_vm(struct kvm_vm *vm); -void perf_test_setup_vcpus(struct kvm_vm *vm, int vcpus, - uint64_t vcpu_memory_bytes, - bool partition_vcpu_memory_access); #endif /* SELFTEST_KVM_PERF_TEST_UTIL_H */ diff --git a/tools/testing/selftests/kvm/lib/perf_test_util.c b/tools/testing/selftests/kvm/lib/perf_test_util.c index b3154b5b0cfd..13c8bc22f4e1 100644 --- a/tools/testing/selftests/kvm/lib/perf_test_util.c +++ b/tools/testing/selftests/kvm/lib/perf_test_util.c @@ -48,9 +48,43 @@ static void guest_code(uint32_t vcpu_id) } } +void perf_test_setup_vcpus(struct kvm_vm *vm, int vcpus, + uint64_t vcpu_memory_bytes, + bool partition_vcpu_memory_access) +{ + struct perf_test_args *pta = &perf_test_args; + struct perf_test_vcpu_args *vcpu_args; + int vcpu_id; + + for (vcpu_id = 0; vcpu_id < vcpus; vcpu_id++) { + vcpu_args = &pta->vcpu_args[vcpu_id]; + + vcpu_args->vcpu_id = vcpu_id; + if (partition_vcpu_memory_access) { + vcpu_args->gva = guest_test_virt_mem + + (vcpu_id * vcpu_memory_bytes); + vcpu_args->pages = vcpu_memory_bytes / + pta->guest_page_size; + vcpu_args->gpa = pta->gpa + (vcpu_id * vcpu_memory_bytes); + } else { + vcpu_args->gva = guest_test_virt_mem; + vcpu_args->pages = (vcpus * vcpu_memory_bytes) / + pta->guest_page_size; + vcpu_args->gpa = pta->gpa; + } + + vcpu_args_set(vm, vcpu_id, 1, vcpu_id); + + pr_debug("Added VCPU %d with test mem gpa [%lx, %lx)\n", + vcpu_id, vcpu_args->gpa, vcpu_args->gpa + + (vcpu_args->pages * pta->guest_page_size)); + } +} + struct kvm_vm *perf_test_create_vm(enum vm_guest_mode mode, int vcpus, uint64_t vcpu_memory_bytes, int slots, - enum vm_mem_backing_src_type backing_src) + enum vm_mem_backing_src_type backing_src, + bool partition_vcpu_memory_access) { struct perf_test_args *pta = &perf_test_args; struct kvm_vm *vm; @@ -119,6 +153,8 @@ struct kvm_vm *perf_test_create_vm(enum vm_guest_mode mode, int vcpus, /* Do mapping for the demand paging memory slot */ virt_map(vm, guest_test_virt_mem, pta->gpa, guest_num_pages); + perf_test_setup_vcpus(vm, vcpus, vcpu_memory_bytes, partition_vcpu_memory_access); + ucall_init(vm, NULL); return vm; @@ -129,36 +165,3 @@ void perf_test_destroy_vm(struct kvm_vm *vm) ucall_uninit(vm); kvm_vm_free(vm); } - -void perf_test_setup_vcpus(struct kvm_vm *vm, int vcpus, - uint64_t vcpu_memory_bytes, - bool partition_vcpu_memory_access) -{ - struct perf_test_args *pta = &perf_test_args; - struct perf_test_vcpu_args *vcpu_args; - int vcpu_id; - - for (vcpu_id = 0; vcpu_id < vcpus; vcpu_id++) { - vcpu_args = &pta->vcpu_args[vcpu_id]; - - vcpu_args->vcpu_id = vcpu_id; - if (partition_vcpu_memory_access) { - vcpu_args->gva = guest_test_virt_mem + - (vcpu_id * vcpu_memory_bytes); - vcpu_args->pages = vcpu_memory_bytes / - pta->guest_page_size; - vcpu_args->gpa = pta->gpa + (vcpu_id * vcpu_memory_bytes); - } else { - vcpu_args->gva = guest_test_virt_mem; - vcpu_args->pages = (vcpus * vcpu_memory_bytes) / - pta->guest_page_size; - vcpu_args->gpa = pta->gpa; - } - - vcpu_args_set(vm, vcpu_id, 1, vcpu_id); - - pr_debug("Added VCPU %d with test mem gpa [%lx, %lx)\n", - vcpu_id, vcpu_args->gpa, vcpu_args->gpa + - (vcpu_args->pages * pta->guest_page_size)); - } -} diff --git a/tools/testing/selftests/kvm/memslot_modification_stress_test.c b/tools/testing/selftests/kvm/memslot_modification_stress_test.c index d105180d5e8c..27af0bb8deb7 100644 --- a/tools/testing/selftests/kvm/memslot_modification_stress_test.c +++ b/tools/testing/selftests/kvm/memslot_modification_stress_test.c @@ -105,16 +105,14 @@ static void run_test(enum vm_guest_mode mode, void *arg) int vcpu_id; vm = perf_test_create_vm(mode, nr_vcpus, guest_percpu_mem_size, 1, - VM_MEM_SRC_ANONYMOUS); + VM_MEM_SRC_ANONYMOUS, + p->partition_vcpu_memory_access); perf_test_args.wr_fract = 1; vcpu_threads = malloc(nr_vcpus * sizeof(*vcpu_threads)); TEST_ASSERT(vcpu_threads, "Memory allocation failed"); - perf_test_setup_vcpus(vm, nr_vcpus, guest_percpu_mem_size, - p->partition_vcpu_memory_access); - /* Export the shared variables to the guest */ sync_global_to_guest(vm, perf_test_args);