From nobody Fri Oct 10 13:44:24 2025 Received: from mail-pj1-f73.google.com (mail-pj1-f73.google.com [209.85.216.73]) (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 F0F85275B09 for ; Fri, 13 Jun 2025 19:14:23 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.216.73 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1749842065; cv=none; b=MBnCEav4Wr41DguHFzskRbpqkAcMFnQsrcJUQ08WsGZJa4Xc/e00A2MVMKt32WQbemKVeDGZFIsZFlufXTXCKHpo8okC19/KyjcoraeIiyjuJrHD7UYCM9V9ke7Y0vjGQN3f+kPE3x6rIpHPSAvM3C++eqe+utImQuKzGCCQ8Hw= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1749842065; c=relaxed/simple; bh=n+34/TQnDhQUpWV9zBPtETMCqc79945QBOwUvQHWJuI=; h=Date:In-Reply-To:Mime-Version:References:Message-ID:Subject:From: To:Cc:Content-Type; b=nK2xfCxMAPDsvOATT3pzLvuWPsWTUyvbq6gPiOhqOy3nhrlBL7QDVjrmejwrA9S65PIo+GuqWo0hCa/K7CbpFnkjRjF2RJbIiP6Z4PVltJFbGsv+1tECJnjsGwGk2gybBTea1rFLQnbv2T5vJZfNkKaoaFMBVQjPDMPjmvT4YgY= 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=jb/G19Au; arc=none smtp.client-ip=209.85.216.73 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="jb/G19Au" Received: by mail-pj1-f73.google.com with SMTP id 98e67ed59e1d1-311ef4fb5fdso2104846a91.1 for ; Fri, 13 Jun 2025 12:14:23 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20230601; t=1749842063; x=1750446863; 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=KKvGThASRp3H2fuQgg3irPPgWW1C0TLSvPp1AQa9Mz0=; b=jb/G19Au2VOTqbuMe9VbDT9Wgc5PWcD1zc1vNVEUhsFj9L/RKJ2FEEdvvTi1sdlQCp xGvkT50H4aCGT4VMDCfRQBWOoYF+Nz6rtb6BMnpFt1EpzDsAb6me0+/ZO4K+ruwNWcnX wyDbQhNHMlbByeYcdwOw70iadNJO0xARyTxWs+FIfc1OPWmsFfCQiQET35FYuN0Oalpg BzOPCpIRpjms+1pf2L6ZPKGBrQuyljCKTxb6dUjdahyduALLMIBR4w7x+c4Qx4dYE1z5 lvVmRMsHI72iDH4hhaqCZXD4d0UfEocfO/7JRYshQyvVcyN9jcguinFA48Rl/kFN0oDp naUg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1749842063; x=1750446863; 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=KKvGThASRp3H2fuQgg3irPPgWW1C0TLSvPp1AQa9Mz0=; b=eVAVMayu3uWx8+0xf4hN5CKYqbzwYtYnkOq3s2cs81FNYjMjiaky/A67axCLv3+FjM fbD4RHplniuJKmLqU1pcbRkdx0Rzplh851oLNlIcTHUKI+dI+ht72jfjMGL2OQxkWev/ zYwp4gkK8PsqPrbxN7ZnMmQltkBZ/PQ3JmL4qgOuC4cQBPNYvJ4zFb4Zh77z0ZJ7t8Lj Z0RiIfzBNz4Xg/C4gte1tWo7E9qAV355PYR1lh4uLaxLo5MEO3PMFB1GBFJwNN0yf3ir 3YdpqQl8xAyeHz9/spavepqNqHTEWZzocdv3Pn/+6ML+jttbrwwH95IrkkPHN04MRgdS 0mqw== X-Gm-Message-State: AOJu0YzhsUrkPMFhL/lUo9g/WX/Xulk/XoTSh301DMonGkk99azwt1JA PwG+FM78TThXQvc8G5gP6rPHJcMeGTBIiLUcu3FSpxhEITVIER/gDw1k9pkqk6Sui+pORIidgg8 GzQ== X-Google-Smtp-Source: AGHT+IEBcUSdKCdQQyJat53qjznsfsYVoRbsmkBiaiRjdIDqSqw1KmSy96Z3hS82BrR5/3y0caOOvTW4Pw== X-Received: from pjm11.prod.google.com ([2002:a17:90b:2fcb:b0:311:ff32:a85d]) (user=sagis job=prod-delivery.src-stubby-dispatcher) by 2002:a17:90b:55cd:b0:312:639:a06a with SMTP id 98e67ed59e1d1-313f1d0aa4emr1154843a91.31.1749842063073; Fri, 13 Jun 2025 12:14:23 -0700 (PDT) Date: Fri, 13 Jun 2025 12:13:34 -0700 In-Reply-To: <20250613191359.35078-1-sagis@google.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 References: <20250613191359.35078-1-sagis@google.com> X-Mailer: git-send-email 2.50.0.rc2.692.g299adb8693-goog Message-ID: <20250613191359.35078-8-sagis@google.com> Subject: [PATCH v7 07/30] 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 Cc: linux-kernel@vger.kernel.org, kvm@vger.kernel.org Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" From: Ackerley Tng This also exercises the KVM_TDX_CAPABILITIES ioctl. Suggested-by: Isaku Yamahata Co-developed-by: Isaku Yamahata Signed-off-by: Isaku Yamahata Signed-off-by: Ackerley Tng 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 392d6272d17e..bb074af4a476 100644 --- a/tools/testing/selftests/kvm/lib/x86/tdx/tdx_util.c +++ b/tools/testing/selftests/kvm/lib/x86/tdx/tdx_util.c @@ -140,6 +140,21 @@ static void tdx_apply_cpuid_restrictions(struct kvm_cp= uid2 *cpuid_data) } } =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); +} + #define KVM_MAX_CPUID_ENTRIES 256 =20 #define CPUID_EXT_VMX BIT(5) @@ -256,6 +271,8 @@ static void tdx_td_init(struct kvm_vm *vm, uint64_t att= ributes) memcpy(&init_vm->cpuid, cpuid, kvm_cpuid2_size(cpuid->nent)); free(cpuid); =20 + tdx_check_attributes(vm, attributes); + init_vm->attributes =3D attributes; =20 tdx_apply_cpuid_restrictions(&init_vm->cpuid); --=20 2.50.0.rc2.692.g299adb8693-goog