From nobody Sat Oct 4 03:01:36 2025 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 66C912EAB89 for ; Thu, 21 Aug 2025 04:29:44 +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=1755750586; cv=none; b=hKhOkmV3EKWhAW1Elp9DrmvTgSAHDDatWGwYz4OqZD5+4OYtJ+ApfQsdcTOXUQkOoxU1raVcgwUZfRqkIamoxfxcqt6UVrJQB5IDQhUyM97MfpAeGDaTy4Fi2xQtn5GU2N5qeUZXPrySZj8N0zWySBFQhUHPtJxsC390bwYZXUc= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1755750586; c=relaxed/simple; bh=8LW9fPqlqltwsHHnngmKu/oedqkqhCGSJV7BughN2D8=; h=Date:In-Reply-To:Mime-Version:References:Message-ID:Subject:From: To:Cc:Content-Type; b=jg69qWN0BrRfO62ByC6o869rz1TRy2jYOWKJqFWAefxQwlURrKIf+H9LbWEHOV/tJlemRzXZy7dy3PClTkAHHqwRzOQffaJXnCTQMZ1xhW1ibQI0oCDHIpz2KVKgPkPZ9TkrPj8BJHJH/hKoMw+iWpyVaUVdVdhu2lyYNjrARhI= 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=Xs8hNWM/; 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="Xs8hNWM/" Received: by mail-pg1-f201.google.com with SMTP id 41be03b00d2f7-b471757d82fso462987a12.3 for ; Wed, 20 Aug 2025 21:29:44 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20230601; t=1755750584; x=1756355384; 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=0v8Xhqku7JbLYSzHfxNxFV/zNuQzZHa6ydPXR+w0a3o=; b=Xs8hNWM/wbZOpxKY2rua9bKgcOvvGUATzpLjyBXCipood0F923RUDdzy3y4NKMpYGs NlEzcblJ7v/cOhmmGIWzN7bpxKdUWgcEiE7/EXeV971Wmi1bWnxKwq7RpzZikyjF0LX9 I6Auj6Eb03Iic5LNBLXeg/7knEz2tTvHbKIQ+2TW4imekMVnv7xs5Jhd+QiCpylC5VvF +x7Si4aq0/+HxHj3m9daV+v526hPdYz9093Pxdi7vH34WesGp4+baHBTxgVOd/H2s8SI t5re4iOvxptjb2B4gTp4V4R48BEOxnUlB9BZV+h/BV2k+vBACTZGK4Hp791Yepa5Fqnm UX2Q== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1755750584; x=1756355384; 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=0v8Xhqku7JbLYSzHfxNxFV/zNuQzZHa6ydPXR+w0a3o=; b=AaBIMjWOXOxdk7rKXfImgcJzED6FdMYAT9y9/sBDf7ZJtE6Scz1v/VkCL2jcEUXkX0 Noyxj85emOSAB2yYDanPEZASqbG5wsWak+CiIq/kQMQvf0PwUMDETk7FxkpRmLnVucbT /ShaVbIwJhhuRtJx3sjEueaZ/QicUUReO9R5lCJtUKienKZTRGImIghkClKatel1YYFO UQsDoyx31oOPYQtBfhYBpQIGRhTXIncuD1+Qk/kGYoEfzwTbf31oG+98igMcoYXJE/MK I6EO77tSrAJI2ALyYA7tUimJ79ZypxC2LDtqj0CUkvbFSYmdAanLJZugMDvgPIU3St++ U/Uw== X-Gm-Message-State: AOJu0YwZdfAG3E2P0Z2cY0C8fZQFBk2FHrBVmXN+gab8nHnlTf0LSpPY sTnT1Q02JYzKvo4sC50TxOnfh6CGtskNK2C89Rtmvz9uhNKp0vzPYLsEOf0topcvE9nn8PJNDkz 5Tg== X-Google-Smtp-Source: AGHT+IHoYEwP7EzZ53USD2mIjc5qGUC3k55bBLYh38dEin6rSVJ2mTGlfcHpGpSYs073s+UjtI+o0y1iHQ== X-Received: from pjbli15.prod.google.com ([2002:a17:90b:48cf:b0:31f:1a3e:fe3b]) (user=sagis job=prod-delivery.src-stubby-dispatcher) by 2002:a05:6a20:3ca7:b0:243:755:58ae with SMTP id adf61e73a8af0-24330acb929mr1268174637.47.1755750583705; Wed, 20 Aug 2025 21:29:43 -0700 (PDT) Date: Wed, 20 Aug 2025 21:29:06 -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: <20250821042915.3712925-14-sagis@google.com> Subject: [PATCH v9 13/19] KVM: selftests: TDX: Use KVM_TDX_CAPABILITIES to validate TDs' attribute configuration 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" From: Isaku Yamahata This also exercises the KVM_TDX_CAPABILITIES ioctl. Signed-off-by: Isaku Yamahata Co-developed-by: Sagi Shahar Signed-off-by: Sagi Shahar --- .../selftests/kvm/lib/x86/tdx/tdx_util.c | 17 +++++++++++++++++ 1 file changed, 17 insertions(+) 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 3869756a5641..d8eab99d9333 100644 --- a/tools/testing/selftests/kvm/lib/x86/tdx/tdx_util.c +++ b/tools/testing/selftests/kvm/lib/x86/tdx/tdx_util.c @@ -232,6 +232,21 @@ static void vm_tdx_filter_cpuid(struct kvm_vm *vm, free(tdx_cap); } =20 +static void tdx_check_attributes(struct kvm_vm *vm, uint64_t attributes) +{ + struct kvm_tdx_capabilities *tdx_cap; + + tdx_cap =3D tdx_read_capabilities(vm); + + /* TDX spec: any bits 0 in supported_attrs must be 0 in attributes */ + TEST_ASSERT_EQ(attributes & ~tdx_cap->supported_attrs, 0); + + /* TDX spec: any bits 1 in attributes must be 1 in supported_attrs */ + TEST_ASSERT_EQ(attributes & tdx_cap->supported_attrs, attributes); + + free(tdx_cap); +} + void vm_tdx_init_vm(struct kvm_vm *vm, uint64_t attributes) { struct kvm_tdx_init_vm *init_vm; @@ -251,6 +266,8 @@ void vm_tdx_init_vm(struct kvm_vm *vm, uint64_t attribu= tes) memcpy(&init_vm->cpuid, cpuid, kvm_cpuid2_size(cpuid->nent)); free(cpuid); =20 + tdx_check_attributes(vm, attributes); + init_vm->attributes =3D attributes; =20 vm_tdx_vm_ioctl(vm, KVM_TDX_INIT_VM, 0, init_vm); --=20 2.51.0.rc1.193.gad69d77794-goog