From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-pg1-f201.google.com (mail-pg1-f201.google.com [209.85.215.201]) (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 23C252ED17D for ; Thu, 21 Aug 2025 04:29:53 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.215.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1755750595; cv=none; b=qeAiuwfEeRw6lFmA1yiu9kCgnHCEbOvYmooy1z9qYeTl2hyZxGWyK57AmXi0lWXCacwKWn4en1dlWFIWLND4IvqEQnyE5k7H2ND2O0Kee71RfhbajMLN/EnPDCRBypVP7JVbNjYkYCZi2lhodqz6wAeuXDkWtVK2l6BUSwhFCdo= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1755750595; c=relaxed/simple; bh=SCj5vpqbGdcyeL9WchYjYHXxlh3Syca50DvMtgJYdEE=; h=Date:In-Reply-To:Mime-Version:References:Message-ID:Subject:From: To:Cc:Content-Type; b=BooDo2/u2e8q3xy5IBHah/3VkMHpg7Ac1/RhNiKssQSk8Wk97NZ7RtNrrVcQ73L5xotpdSirwU9f4z4BoLKrmIlrRdC2466SFmVikbK8+iZzPnmYw5xEWqS5b7fEXfiOBNJoykSjYsl6KHGOv+rrTU/+I4CsdBUtAhYTIpGyy0Y= 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=xuET/TSC; arc=none smtp.client-ip=209.85.215.201 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="xuET/TSC" Received: by mail-pg1-f201.google.com with SMTP id 41be03b00d2f7-b47174c667aso477263a12.2 for ; Wed, 20 Aug 2025 21:29:53 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20230601; t=1755750592; x=1756355392; 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=3ni6/1QBXYyjIXVNXrHE6sKBQ7BBSjz5QhIiIQ0TLw0=; b=xuET/TSCt6PFuCOdPi5Z5y/dEg4sD+i1qImMcL8xRCpzIteliZY7RHdmsP2bqQU+lc u21EwRPxhc+sztMv88mB1xQ4UjxULkCX3tAxGel/FGYMfbauo6W+875bYXLNLnfSPbdx rc0P+CBxcDFrMmlhjoTSYv5UmoIN+nQCyXTI8NdQ9BD1+dfLcm8yLvtVEGuxiaSYnTLZ vmPPJiHQ6DywPtdHHhbRvnYjst/RafYe+SzK3hzPWLkjw2cRpfzsaxz0FfkWs3/A3nXN T6M4XgPm1IONtDJJy61IRzQwlSoKpauwlkK3ceTf3ANG148w/IyzXpeqg1z7dI1R+9j1 vB+Q== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1755750592; x=1756355392; 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=3ni6/1QBXYyjIXVNXrHE6sKBQ7BBSjz5QhIiIQ0TLw0=; b=NQGH13m37deY0lhSdXOnyapBBJ8HYN6ki9qQCIlf67PTe0Zox6vg7x5oEyBnULjQjQ zHc0EpIBmxv93bDNRkIHthR6EHInLMhzqu+gai1j7kqhftiQEtnEO1nzMaXj2OxCNOsX +9nPEQp/8Bjw2Ph/UoU+eEgWm1hrPIXXSCOH6ZNzAuKWr9HL1siJfwOH5Mp6shoGtYPa ORiHyvM9sKagNPQKwP7HFfmyW4F5Uywto3zBoigufSUJ4frcYOYvzowjLRlRkwmG15RS vqDSgqxtPF+CAa6Xw8e+aOKXK6IkBqycXajo7zoH9cMX7U3wrNZ4AxIDzBDFgyDO+wxq SLhA== X-Gm-Message-State: AOJu0YxtIO5GflH+JFXBilFl0emVmqcpoK72qr2OQYnzReXDHLEYY7Qr ON7SqXk3HSZ0W++buorFFOoi0B5YUUEUwBF4HVyFfoeMBOBXTSQqoVz9QoxF4unPQ6RjbRvwQ1c pAQ== X-Google-Smtp-Source: AGHT+IF47pIKGfWNf380vL880YXdNEf+FWPdQExp1mJvaZsLgHJ8I4ZDENH3hqy/aqETue6DuLS1LEQ09w== X-Received: from pgbdp6.prod.google.com ([2002:a05:6a02:f06:b0:b47:61f6:dd10]) (user=sagis job=prod-delivery.src-stubby-dispatcher) by 2002:a05:6a20:734a:b0:240:30c:276a with SMTP id adf61e73a8af0-24330aa5c52mr1472690637.39.1755750592600; Wed, 20 Aug 2025 21:29:52 -0700 (PDT) Date: Wed, 20 Aug 2025 21:29:12 -0700 In-Reply-To: <20250821042915.3712925-1-sagis@google.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 References: <20250821042915.3712925-1-sagis@google.com> X-Mailer: git-send-email 2.51.0.rc1.193.gad69d77794-goog Message-ID: <20250821042915.3712925-20-sagis@google.com> Subject: [PATCH v9 19/19] 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-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/selftests/kvm/Makefile.kvm index 8d1aaebd746e..86c101fbe1a0 100644 --- a/tools/testing/selftests/kvm/Makefile.kvm +++ b/tools/testing/selftests/kvm/Makefile.kvm @@ -155,6 +155,7 @@ TEST_GEN_PROGS_x86 += rseq_test TEST_GEN_PROGS_x86 += steal_time TEST_GEN_PROGS_x86 += system_counter_offset_test TEST_GEN_PROGS_x86 += pre_fault_memory_test +TEST_GEN_PROGS_x86 += x86/tdx_vm_test # Compiled outputs used by test targets TEST_GEN_PROGS_EXTENDED_x86 += 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 == KVM_X86_TDX_VM; } +/* + * 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); void vm_tdx_finalize(struct kvm_vm *vm); +struct kvm_vm *vm_tdx_create_with_one_vcpu(void *guest_code, + struct kvm_vcpu **vcpu); #endif // SELFTESTS_TDX_TDX_UTIL_H diff --git a/tools/testing/selftests/kvm/lib/x86/tdx/tdx_util.c b/tools/testing/selftests/kvm/lib/x86/tdx/tdx_util.c index 4024587ed3c2..8b18f1a8da62 100644 --- a/tools/testing/selftests/kvm/lib/x86/tdx/tdx_util.c +++ b/tools/testing/selftests/kvm/lib/x86/tdx/tdx_util.c @@ -371,3 +371,21 @@ 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 = { + .mode = VM_MODE_DEFAULT, + .type = KVM_X86_TDX_VM, + }; + struct kvm_vm *vm; + struct kvm_vcpu *vcpus[1]; + + vm = __vm_create_with_vcpus(shape, 1, 0, guest_code, vcpus); + *vcpu = 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 = 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); +} -- 2.51.0.rc1.193.gad69d77794-goog