From nobody Sun Sep 14 14:53:51 2025 Received: from mail-pj1-f74.google.com (mail-pj1-f74.google.com [209.85.216.74]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 2A104285CA1 for ; Thu, 4 Sep 2025 06:55:35 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.216.74 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1756968937; cv=none; b=JBb5CgfAzMJwBvZoP8oF08solFiQayanJk0n41DSnz2Y0aQU2TBU7+o040MCA0kEh1Sg7z10qTCVTUkjHy4NCZRGJ0OlXxyI8YmlJ9sNCQDaqXLC2+Z/Pgj96hPPavVIXdsnaww96N20KPAYf4wefb56kdDOg91hzPZEAsJyMcU= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1756968937; c=relaxed/simple; bh=n5R2ZA5nD4duw34bOYSLZZY4wDHfqasy7+07P7hy0UE=; h=Date:In-Reply-To:Mime-Version:References:Message-ID:Subject:From: To:Cc:Content-Type; b=HT8PFWTgorPJSb0RPKfylRC7Y/0anIOLiHrhoAoliYfuNIc2AsF6scteb9kADWnS9jqbjWhnErQJeaFTwkRqqfK0P7M+5xapoNKBgETeGKBFQumOQu2vL3AE/xcPuxgZmVDasz8Gkm83G5Y/sMLtOPgJSZALnw/D5jHs8pLEvMc= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=google.com; spf=pass smtp.mailfrom=flex--sagis.bounces.google.com; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b=jOJzRI/B; arc=none smtp.client-ip=209.85.216.74 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=google.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=flex--sagis.bounces.google.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b="jOJzRI/B" Received: by mail-pj1-f74.google.com with SMTP id 98e67ed59e1d1-327b5e7f2f6so851051a91.2 for ; Wed, 03 Sep 2025 23:55:35 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20230601; t=1756968935; x=1757573735; darn=vger.kernel.org; h=cc:to:from:subject:message-id:references:mime-version:in-reply-to :date:from:to:cc:subject:date:message-id:reply-to; bh=4yB9yOXY7Gz8M5J2AkG68rpmry/ggMKSfTcUt8sHdGE=; b=jOJzRI/BfWsq5s7ff1vcKDdyHqZUZoGAhuR0iY/PJ1OwlkQdcg5Xm+vafLj/f9kQly 004hN2ekrmD7gcHCZmHICgaiRXvRFznTDTDxTQ2NhXjgNRizzpMptfWhYcM0sZSdAJyX gCLab0nOW+FmOgsof/w1JZ7XzKueeNdmAAla5q+hySBqIA3W99PZUWqbSlXLqJhF3h2g iNMrvVExEDKRCI99lL9uC+PmyhLqMMa7W85O7kHC1qI68a9ZxuZJme0uiX4YPAq0cfJd u7oJCJ8mNZ/9VI9LSUWt6VXmx47rSHOyeyKpBabuk5KSFf43PHS0v7hoc6+wVoACMDSD pYzA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1756968935; x=1757573735; h=cc:to:from:subject:message-id:references:mime-version:in-reply-to :date:x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=4yB9yOXY7Gz8M5J2AkG68rpmry/ggMKSfTcUt8sHdGE=; b=olWPJfA1MhgOPvq2LlFcCZx/JN38sDSZJB1bC2MJVpD9pkoBEu6S7u1LGmxpt16N+b UaykTObPsIvpvMzeEkKaYALAsjpIp2iMguJm0VwJxF/M/DYZavWMB4Y3+Z20pjxk06FO 02Hq7xHSCOpTrMg8TpzoW+IQUolvkCfTVgmHVD4W4mMAa6Uqhlj+jVPv6aP92O8OmlKP 5ZG4q/VQw7dJ0GIboti7pqcPJXWxDbSaoAKCzdXect2QaXP8PewBwRLeHZEN2scfZNUX bRPMi0kPaGwGetHrr7Tkm0CaHOfYIKbD9ttpoPywV9QYQSol9v5WFrPIR7jzhonVA4tv zd8g== X-Gm-Message-State: AOJu0Yyja/s18DDRf4I3iUtk2k/wgmCoQLSearTNgn/CIBLqoNcIH/dA f5R2Q8VUcLtLrwUCEA2l0CwpkJj46QrCWeWEIjCkeoeWUIJBthxOu73hXyMTjbewF2yURmDnq2+ I5w== X-Google-Smtp-Source: AGHT+IFpJtOTBtEH30kjlV9qshasFJ6VZRx9xb8RK+RSnnYf1AYHxgBz5mEyM5mVxSvYniQwjkKBo72C8w== X-Received: from pjh5.prod.google.com ([2002:a17:90b:3f85:b0:325:7c49:9cce]) (user=sagis job=prod-delivery.src-stubby-dispatcher) by 2002:a17:90b:2ecc:b0:329:e3dc:db6c with SMTP id 98e67ed59e1d1-329e3dcdc0bmr11848843a91.23.1756968935487; Wed, 03 Sep 2025 23:55:35 -0700 (PDT) Date: Wed, 3 Sep 2025 23:54:51 -0700 In-Reply-To: <20250904065453.639610-1-sagis@google.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 References: <20250904065453.639610-1-sagis@google.com> X-Mailer: git-send-email 2.51.0.338.gd7d06c2dae-goog Message-ID: <20250904065453.639610-22-sagis@google.com> Subject: [PATCH v10 21/21] KVM: selftests: Add TDX lifecycle test From: Sagi Shahar To: linux-kselftest@vger.kernel.org, Paolo Bonzini , Shuah Khan , Sean Christopherson , Ackerley Tng , Ryan Afranji , Andrew Jones , Isaku Yamahata , Erdem Aktas , Rick Edgecombe , Sagi Shahar , Roger Wang , Binbin Wu , Oliver Upton , "Pratik R. Sampat" , Reinette Chatre , Ira Weiny , Chao Gao , Chenyi Qiang Cc: linux-kernel@vger.kernel.org, kvm@vger.kernel.org Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" Adding a test to verify TDX lifecycle by creating a simple TD. Signed-off-by: Sagi Shahar --- tools/testing/selftests/kvm/Makefile.kvm | 1 + .../selftests/kvm/include/x86/tdx/tdx_util.h | 10 ++++++ .../selftests/kvm/lib/x86/tdx/tdx_util.c | 18 +++++++++++ tools/testing/selftests/kvm/x86/tdx_vm_test.c | 31 +++++++++++++++++++ 4 files changed, 60 insertions(+) create mode 100644 tools/testing/selftests/kvm/x86/tdx_vm_test.c diff --git a/tools/testing/selftests/kvm/Makefile.kvm b/tools/testing/selft= ests/kvm/Makefile.kvm index 1a73e08c8437..1a76e9fa45d6 100644 --- a/tools/testing/selftests/kvm/Makefile.kvm +++ b/tools/testing/selftests/kvm/Makefile.kvm @@ -155,6 +155,7 @@ TEST_GEN_PROGS_x86 +=3D rseq_test TEST_GEN_PROGS_x86 +=3D steal_time TEST_GEN_PROGS_x86 +=3D system_counter_offset_test TEST_GEN_PROGS_x86 +=3D pre_fault_memory_test +TEST_GEN_PROGS_x86 +=3D x86/tdx_vm_test =20 # Compiled outputs used by test targets TEST_GEN_PROGS_EXTENDED_x86 +=3D x86/nx_huge_pages_test diff --git a/tools/testing/selftests/kvm/include/x86/tdx/tdx_util.h b/tools= /testing/selftests/kvm/include/x86/tdx/tdx_util.h index 2467b6c35557..775ca249f74d 100644 --- a/tools/testing/selftests/kvm/include/x86/tdx/tdx_util.h +++ b/tools/testing/selftests/kvm/include/x86/tdx/tdx_util.h @@ -11,6 +11,14 @@ static inline bool is_tdx_vm(struct kvm_vm *vm) return vm->type =3D=3D KVM_X86_TDX_VM; } =20 +/* + * Verify that TDX is supported by KVM. + */ +static inline bool is_tdx_enabled(void) +{ + return !!(kvm_check_cap(KVM_CAP_VM_TYPES) & BIT(KVM_X86_TDX_VM)); +} + /* * TDX ioctls */ @@ -72,5 +80,7 @@ void vm_tdx_load_vcpu_boot_parameters(struct kvm_vm *vm, = struct kvm_vcpu *vcpu); void vm_tdx_set_vcpu_entry_point(struct kvm_vcpu *vcpu, void *guest_code); =20 void vm_tdx_finalize(struct kvm_vm *vm); +struct kvm_vm *vm_tdx_create_with_one_vcpu(void *guest_code, + struct kvm_vcpu **vcpu); =20 #endif // SELFTESTS_TDX_TDX_UTIL_H diff --git a/tools/testing/selftests/kvm/lib/x86/tdx/tdx_util.c b/tools/tes= ting/selftests/kvm/lib/x86/tdx/tdx_util.c index d5df2de81a75..a2764f5d687c 100644 --- a/tools/testing/selftests/kvm/lib/x86/tdx/tdx_util.c +++ b/tools/testing/selftests/kvm/lib/x86/tdx/tdx_util.c @@ -334,3 +334,21 @@ void vm_tdx_finalize(struct kvm_vm *vm) load_td_private_memory(vm); vm_tdx_vm_ioctl(vm, KVM_TDX_FINALIZE_VM, 0, NULL); } + +struct kvm_vm *vm_tdx_create_with_one_vcpu(void *guest_code, + struct kvm_vcpu **vcpu) +{ + struct vm_shape shape =3D { + .mode =3D VM_MODE_DEFAULT, + .type =3D KVM_X86_TDX_VM, + }; + struct kvm_vm *vm; + struct kvm_vcpu *vcpus[1]; + + vm =3D __vm_create_with_vcpus(shape, 1, 0, guest_code, vcpus); + *vcpu =3D vcpus[0]; + + vm_tdx_finalize(vm); + + return vm; +} diff --git a/tools/testing/selftests/kvm/x86/tdx_vm_test.c b/tools/testing/= selftests/kvm/x86/tdx_vm_test.c new file mode 100644 index 000000000000..a9ee489eea1a --- /dev/null +++ b/tools/testing/selftests/kvm/x86/tdx_vm_test.c @@ -0,0 +1,31 @@ +// SPDX-License-Identifier: GPL-2.0-only + +#include "kvm_util.h" +#include "tdx/tdx_util.h" +#include "ucall_common.h" +#include "kselftest_harness.h" + +static void guest_code_lifecycle(void) +{ + GUEST_DONE(); +} + +TEST(verify_td_lifecycle) +{ + struct kvm_vcpu *vcpu; + struct kvm_vm *vm; + struct ucall uc; + + vm =3D vm_tdx_create_with_one_vcpu(guest_code_lifecycle, &vcpu); + + vcpu_run(vcpu); + TEST_ASSERT_EQ(get_ucall(vcpu, &uc), UCALL_DONE); + + kvm_vm_free(vm); +} + +int main(int argc, char **argv) +{ + TEST_REQUIRE(is_tdx_enabled()); + return test_harness_run(argc, argv); +} --=20 2.51.0.338.gd7d06c2dae-goog