From patchwork Wed Sep 21 15:24:32 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Vitaly Kuznetsov X-Patchwork-Id: 12983861 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 7413DECAAD8 for ; Wed, 21 Sep 2022 15:29:42 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231614AbiIUP3l (ORCPT ); Wed, 21 Sep 2022 11:29:41 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:33404 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231425AbiIUP24 (ORCPT ); Wed, 21 Sep 2022 11:28:56 -0400 Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.129.124]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 75F8481B39 for ; Wed, 21 Sep 2022 08:26:30 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1663773977; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=6bSBKXQVMZkBrPt1RNnhQNoEedX5qH7LPkMr7YgImrg=; b=L/L9a3y9ktg7m8P+aMexFdehfa9reFoCrPH/Ww00uHUxnPK0xlFx9tra1cD+OtKIRcmwqD HNUu7O7p03cXmT6yrhNv5aN2hzQ3CY0tHoh8ValkM1xFNYHMR3GQseGGSEaMeMPY8f5Xmn TL1ltWb3dDK2rJYbL0vwnOcr+krzjc8= Received: from mimecast-mx02.redhat.com (mx3-rdu2.redhat.com [66.187.233.73]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id us-mta-671-aV8fVqcBN-WWQAKXit83xg-1; Wed, 21 Sep 2022 11:26:11 -0400 X-MC-Unique: aV8fVqcBN-WWQAKXit83xg-1 Received: from smtp.corp.redhat.com (int-mx06.intmail.prod.int.rdu2.redhat.com [10.11.54.6]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx02.redhat.com (Postfix) with ESMTPS id 3B6E71C07543; Wed, 21 Sep 2022 15:26:10 +0000 (UTC) Received: from fedora.redhat.com (unknown [10.40.194.159]) by smtp.corp.redhat.com (Postfix) with ESMTP id 4D2192166B26; Wed, 21 Sep 2022 15:26:08 +0000 (UTC) From: Vitaly Kuznetsov To: kvm@vger.kernel.org, Paolo Bonzini Cc: Sean Christopherson , Wanpeng Li , Jim Mattson , Michael Kelley , Siddharth Chandrasekaran , Yuan Yao , Maxim Levitsky , linux-hyperv@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH v10 35/39] KVM: selftests: Create a vendor independent helper to allocate Hyper-V specific test pages Date: Wed, 21 Sep 2022 17:24:32 +0200 Message-Id: <20220921152436.3673454-36-vkuznets@redhat.com> In-Reply-To: <20220921152436.3673454-1-vkuznets@redhat.com> References: <20220921152436.3673454-1-vkuznets@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 3.1 on 10.11.54.6 Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org There's no need to pollute VMX and SVM code with Hyper-V specific stuff and allocate Hyper-V specific test pages for all test as only few really need them. Create a dedicated struct and an allocation helper. Signed-off-by: Vitaly Kuznetsov --- .../selftests/kvm/include/x86_64/evmcs.h | 4 ++-- .../selftests/kvm/include/x86_64/hyperv.h | 15 +++++++++++++ .../selftests/kvm/include/x86_64/vmx.h | 8 ------- .../testing/selftests/kvm/lib/x86_64/hyperv.c | 20 +++++++++++++++++ tools/testing/selftests/kvm/lib/x86_64/vmx.c | 12 ---------- .../testing/selftests/kvm/x86_64/evmcs_test.c | 22 +++++++++---------- 6 files changed, 48 insertions(+), 33 deletions(-) diff --git a/tools/testing/selftests/kvm/include/x86_64/evmcs.h b/tools/testing/selftests/kvm/include/x86_64/evmcs.h index 59b60d45b8f6..94d6059e9a12 100644 --- a/tools/testing/selftests/kvm/include/x86_64/evmcs.h +++ b/tools/testing/selftests/kvm/include/x86_64/evmcs.h @@ -256,9 +256,9 @@ static inline int evmcs_vmptrld(uint64_t vmcs_pa, void *vmcs) return 0; } -static inline bool load_evmcs(uint64_t enlightened_vmcs_gpa, void *enlightened_vmcs) +static inline bool load_evmcs(struct hyperv_test_pages *hv) { - if (evmcs_vmptrld(enlightened_vmcs_gpa, enlightened_vmcs)) + if (evmcs_vmptrld(hv->enlightened_vmcs_gpa, hv->enlightened_vmcs)) return false; current_evmcs->revision_id = EVMCS_VERSION; diff --git a/tools/testing/selftests/kvm/include/x86_64/hyperv.h b/tools/testing/selftests/kvm/include/x86_64/hyperv.h index 42213f5de17f..e00ce9e122f4 100644 --- a/tools/testing/selftests/kvm/include/x86_64/hyperv.h +++ b/tools/testing/selftests/kvm/include/x86_64/hyperv.h @@ -265,4 +265,19 @@ extern struct hv_vp_assist_page *current_vp_assist; int enable_vp_assist(uint64_t vp_assist_pa, void *vp_assist); +struct hyperv_test_pages { + /* VP assist page */ + void *vp_assist_hva; + uint64_t vp_assist_gpa; + void *vp_assist; + + /* Enlightened VMCS */ + void *enlightened_vmcs_hva; + uint64_t enlightened_vmcs_gpa; + void *enlightened_vmcs; +}; + +struct hyperv_test_pages * +vcpu_alloc_hyperv_test_pages(struct kvm_vm *vm, vm_vaddr_t *p_hv_pages_gva); + #endif /* !SELFTEST_KVM_HYPERV_H */ diff --git a/tools/testing/selftests/kvm/include/x86_64/vmx.h b/tools/testing/selftests/kvm/include/x86_64/vmx.h index d07f13c9fced..6d024e1c5f99 100644 --- a/tools/testing/selftests/kvm/include/x86_64/vmx.h +++ b/tools/testing/selftests/kvm/include/x86_64/vmx.h @@ -517,14 +517,6 @@ struct vmx_pages { uint64_t vmwrite_gpa; void *vmwrite; - void *vp_assist_hva; - uint64_t vp_assist_gpa; - void *vp_assist; - - void *enlightened_vmcs_hva; - uint64_t enlightened_vmcs_gpa; - void *enlightened_vmcs; - void *eptp_hva; uint64_t eptp_gpa; void *eptp; diff --git a/tools/testing/selftests/kvm/lib/x86_64/hyperv.c b/tools/testing/selftests/kvm/lib/x86_64/hyperv.c index 32dc0afd9e5b..e44bb5cc8566 100644 --- a/tools/testing/selftests/kvm/lib/x86_64/hyperv.c +++ b/tools/testing/selftests/kvm/lib/x86_64/hyperv.c @@ -8,6 +8,26 @@ #include "processor.h" #include "hyperv.h" +struct hyperv_test_pages * +vcpu_alloc_hyperv_test_pages(struct kvm_vm *vm, vm_vaddr_t *p_hv_pages_gva) +{ + vm_vaddr_t hv_pages_gva = vm_vaddr_alloc_page(vm); + struct hyperv_test_pages *hv = addr_gva2hva(vm, hv_pages_gva); + + /* Setup of a region of guest memory for the VP Assist page. */ + hv->vp_assist = (void *)vm_vaddr_alloc_page(vm); + hv->vp_assist_hva = addr_gva2hva(vm, (uintptr_t)hv->vp_assist); + hv->vp_assist_gpa = addr_gva2gpa(vm, (uintptr_t)hv->vp_assist); + + /* Setup of a region of guest memory for the enlightened VMCS. */ + hv->enlightened_vmcs = (void *)vm_vaddr_alloc_page(vm); + hv->enlightened_vmcs_hva = addr_gva2hva(vm, (uintptr_t)hv->enlightened_vmcs); + hv->enlightened_vmcs_gpa = addr_gva2gpa(vm, (uintptr_t)hv->enlightened_vmcs); + + *p_hv_pages_gva = hv_pages_gva; + return hv; +} + int enable_vp_assist(uint64_t vp_assist_pa, void *vp_assist) { uint64_t val = (vp_assist_pa & HV_X64_MSR_VP_ASSIST_PAGE_ADDRESS_MASK) | diff --git a/tools/testing/selftests/kvm/lib/x86_64/vmx.c b/tools/testing/selftests/kvm/lib/x86_64/vmx.c index f8acbc7c8d7d..11e7f1f26624 100644 --- a/tools/testing/selftests/kvm/lib/x86_64/vmx.c +++ b/tools/testing/selftests/kvm/lib/x86_64/vmx.c @@ -107,18 +107,6 @@ vcpu_alloc_vmx(struct kvm_vm *vm, vm_vaddr_t *p_vmx_gva) vmx->vmwrite_gpa = addr_gva2gpa(vm, (uintptr_t)vmx->vmwrite); memset(vmx->vmwrite_hva, 0, getpagesize()); - /* Setup of a region of guest memory for the VP Assist page. */ - vmx->vp_assist = (void *)vm_vaddr_alloc_page(vm); - vmx->vp_assist_hva = addr_gva2hva(vm, (uintptr_t)vmx->vp_assist); - vmx->vp_assist_gpa = addr_gva2gpa(vm, (uintptr_t)vmx->vp_assist); - - /* Setup of a region of guest memory for the enlightened VMCS. */ - vmx->enlightened_vmcs = (void *)vm_vaddr_alloc_page(vm); - vmx->enlightened_vmcs_hva = - addr_gva2hva(vm, (uintptr_t)vmx->enlightened_vmcs); - vmx->enlightened_vmcs_gpa = - addr_gva2gpa(vm, (uintptr_t)vmx->enlightened_vmcs); - *p_vmx_gva = vmx_gva; return vmx; } diff --git a/tools/testing/selftests/kvm/x86_64/evmcs_test.c b/tools/testing/selftests/kvm/x86_64/evmcs_test.c index 5a4c8b1873aa..74f076ba574b 100644 --- a/tools/testing/selftests/kvm/x86_64/evmcs_test.c +++ b/tools/testing/selftests/kvm/x86_64/evmcs_test.c @@ -68,7 +68,7 @@ void l2_guest_code(void) vmcall(); } -void guest_code(struct vmx_pages *vmx_pages) +void guest_code(struct vmx_pages *vmx_pages, struct hyperv_test_pages *hv_pages) { #define L2_GUEST_STACK_SIZE 64 unsigned long l2_guest_stack[L2_GUEST_STACK_SIZE]; @@ -78,23 +78,22 @@ void guest_code(struct vmx_pages *vmx_pages) GUEST_SYNC(1); GUEST_SYNC(2); - enable_vp_assist(vmx_pages->vp_assist_gpa, vmx_pages->vp_assist); + enable_vp_assist(hv_pages->vp_assist_gpa, hv_pages->vp_assist); evmcs_enable(); GUEST_ASSERT(prepare_for_vmx_operation(vmx_pages)); GUEST_SYNC(3); - GUEST_ASSERT(load_evmcs(vmx_pages->enlightened_vmcs_gpa, - vmx_pages->enlightened_vmcs)); - GUEST_ASSERT(vmptrstz() == vmx_pages->enlightened_vmcs_gpa); + GUEST_ASSERT(load_evmcs(hv_pages)); + GUEST_ASSERT(vmptrstz() == hv_pages->enlightened_vmcs_gpa); GUEST_SYNC(4); - GUEST_ASSERT(vmptrstz() == vmx_pages->enlightened_vmcs_gpa); + GUEST_ASSERT(vmptrstz() == hv_pages->enlightened_vmcs_gpa); prepare_vmcs(vmx_pages, l2_guest_code, &l2_guest_stack[L2_GUEST_STACK_SIZE]); GUEST_SYNC(5); - GUEST_ASSERT(vmptrstz() == vmx_pages->enlightened_vmcs_gpa); + GUEST_ASSERT(vmptrstz() == hv_pages->enlightened_vmcs_gpa); current_evmcs->revision_id = -1u; GUEST_ASSERT(vmlaunch()); current_evmcs->revision_id = EVMCS_VERSION; @@ -104,7 +103,7 @@ void guest_code(struct vmx_pages *vmx_pages) PIN_BASED_NMI_EXITING); GUEST_ASSERT(!vmlaunch()); - GUEST_ASSERT(vmptrstz() == vmx_pages->enlightened_vmcs_gpa); + GUEST_ASSERT(vmptrstz() == hv_pages->enlightened_vmcs_gpa); /* * NMI forces L2->L1 exit, resuming L2 and hope that EVMCS is @@ -152,7 +151,7 @@ void guest_code(struct vmx_pages *vmx_pages) GUEST_SYNC(11); /* Try enlightened vmptrld with an incorrect GPA */ - evmcs_vmptrld(0xdeadbeef, vmx_pages->enlightened_vmcs); + evmcs_vmptrld(0xdeadbeef, hv_pages->enlightened_vmcs); GUEST_ASSERT(vmlaunch()); GUEST_ASSERT(ud_count == 1); GUEST_DONE(); @@ -199,7 +198,7 @@ static struct kvm_vcpu *save_restore_vm(struct kvm_vm *vm, int main(int argc, char *argv[]) { - vm_vaddr_t vmx_pages_gva = 0; + vm_vaddr_t vmx_pages_gva = 0, hv_pages_gva = 0; struct kvm_vcpu *vcpu; struct kvm_vm *vm; @@ -217,7 +216,8 @@ int main(int argc, char *argv[]) vcpu_enable_evmcs(vcpu); vcpu_alloc_vmx(vm, &vmx_pages_gva); - vcpu_args_set(vcpu, 1, vmx_pages_gva); + vcpu_alloc_hyperv_test_pages(vm, &hv_pages_gva); + vcpu_args_set(vcpu, 2, vmx_pages_gva, hv_pages_gva); vm_init_descriptor_tables(vm); vcpu_init_descriptor_tables(vcpu);