From nobody Sun Oct 5 21:42:53 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 946C6288C10 for ; Tue, 29 Jul 2025 22:55:37 +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=1753829739; cv=none; b=pj25uOkP9N/oXUxZjQcCuCKWjY0ajamG6TiXbxLXc+HtIVJii0d5VtA+yxTktzlV8EHPzWX9i7sxatwoo6LVec8cwV+8WvGHVH8jzs+oLXM3ibUq4JPjI9pC+9YGMvXuxNP3kXDo9g8i/QiSJEettGMlChN2rLQKdK2hJRKuqG8= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1753829739; c=relaxed/simple; bh=PIR7Q1NgOshHJlYu6rpDm4VPA1b0uXtS/tyXN6l8IzA=; h=Date:In-Reply-To:Mime-Version:References:Message-ID:Subject:From: To:Cc:Content-Type; b=ZrpR0mPeiehOZGn04IXtJmp5H4/ney68xUGHttsmxFKfx4gZ8PiX5Xkul/jWdoTOdEpxTu1cT6K6gdi17fGmJY9MkkyjY3wmcu7ayeF986PvyUoMInijNbzeZGBFVYlwQHm7HLVN6ZroWXpcoFg4SNVHfQrenHui64UK12l6sI4= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=google.com; spf=pass smtp.mailfrom=flex--seanjc.bounces.google.com; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b=CdJcqhNP; 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--seanjc.bounces.google.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b="CdJcqhNP" Received: by mail-pj1-f74.google.com with SMTP id 98e67ed59e1d1-31edd69d754so2818441a91.1 for ; Tue, 29 Jul 2025 15:55:37 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20230601; t=1753829737; x=1754434537; darn=vger.kernel.org; h=cc:to:from:subject:message-id:references:mime-version:in-reply-to :date:reply-to:from:to:cc:subject:date:message-id:reply-to; bh=gFnHmY/mnoB77L81qdmfXRRJ+itvZAH1/9yVsOU0ZkM=; b=CdJcqhNPeYdDqywNVFfaGHTsnnFI/kYoSeewkj1xaa7qqjq9eI95hADA8INU53cpFQ xzQ4+TnLVXr/Hwrw6Z7U52lDrp8U7uLYWITjM4bNgTkv1hE7z5ZuPIv413L3kXNoeoSe +fDFlWPQ+K55BxFCNHy/IgBjXrYnolew2kFR0gzJOEUgV3n3jvgwF6X0fl9Gro/SWPm6 MKtsv35P3r8zvNBwUMckVTpdiKE4mEqKNClHpoQgc8FUhxl6Mp0cairryemRAlL5mJpX d8dJzVw47WosBUzv1Kgs/b3+pK2WqqL2vSKDvrL6LIb8X8uTTvuEiBMOQ1SsVy2qSf2X apYQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1753829737; x=1754434537; h=cc:to:from:subject:message-id:references:mime-version:in-reply-to :date:reply-to:x-gm-message-state:from:to:cc:subject:date:message-id :reply-to; bh=gFnHmY/mnoB77L81qdmfXRRJ+itvZAH1/9yVsOU0ZkM=; b=vnJLlHkyZ0SfwtXdw2eP3LZbxmqk65CUPdnzmpOssIqX+m4IwxEQsZrftSFR5XbTFF hV1kj2PIRLNMWHwYdMWWjKi38//NdLJeXVQInEozp7SN05bgyRpFCTx79dNetDYq+Cw0 9Fw1JqMrkWtlTM5p0cq3eK4XYYqEeykWMy6mLHK/EWRcRDjjW3cLxHjM2FIXaefINeFD lTDMMUslx1gmLHNYyDlXiOYgg+kF/euYlGCL8WXw2y6kJgO3Sj5RyrM86OTLD2y4Rm4A d0UiXH3k//mmuyuuBPOZlNKaacGxUlLGQsnnT3uV9iHyRiLtr2k2O/W/nrgkPCzSgl89 +k9A== X-Forwarded-Encrypted: i=1; AJvYcCXHhxivmXoJpm4HMmBqph6dXKIUDx0qlpjgf7d7lueubOEEAOUQz+Buz9pf8lKiaI90/Am61QCQYQI6cWU=@vger.kernel.org X-Gm-Message-State: AOJu0YwSUWYCAfbNnu/DjHfW5JOtuTcawDOb3adtBDYtz2STUr4q8fPS g+g+N9MdncmT1/rDdQY2SdxbZH/DPQ39VG9nnIbk13FBk9wEI9zoa6gzOQ7vLK3t0wpJMFuSVyz cP/2JoQ== X-Google-Smtp-Source: AGHT+IGW1K6V884yFJ/UsdufteHNa+YJReUfJU48NT0v+IzXl6w7knzHbQRXIxUuwcw5V5T6c1ZnGgjicS4= X-Received: from pjbmf3.prod.google.com ([2002:a17:90b:1843:b0:31f:2efe:cece]) (user=seanjc job=prod-delivery.src-stubby-dispatcher) by 2002:a17:90b:2885:b0:312:639:a058 with SMTP id 98e67ed59e1d1-31f5de49d4dmr1634316a91.27.1753829736661; Tue, 29 Jul 2025 15:55:36 -0700 (PDT) Reply-To: Sean Christopherson Date: Tue, 29 Jul 2025 15:54:35 -0700 In-Reply-To: <20250729225455.670324-1-seanjc@google.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 References: <20250729225455.670324-1-seanjc@google.com> X-Mailer: git-send-email 2.50.1.552.g942d659e1b-goog Message-ID: <20250729225455.670324-5-seanjc@google.com> Subject: [PATCH v17 04/24] KVM: x86: Select TDX's KVM_GENERIC_xxx dependencies iff CONFIG_KVM_INTEL_TDX=y From: Sean Christopherson To: Paolo Bonzini , Marc Zyngier , Oliver Upton , Sean Christopherson Cc: kvm@vger.kernel.org, linux-arm-kernel@lists.infradead.org, kvmarm@lists.linux.dev, linux-kernel@vger.kernel.org, Ira Weiny , Gavin Shan , Shivank Garg , Vlastimil Babka , Xiaoyao Li , David Hildenbrand , Fuad Tabba , Ackerley Tng , Tao Chan , James Houghton Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" Select KVM_GENERIC_PRIVATE_MEM and KVM_GENERIC_MEMORY_ATTRIBUTES directly from KVM_INTEL_TDX, i.e. if and only if TDX support is fully enabled in KVM. There is no need to enable KVM's private memory support just because the core kernel's INTEL_TDX_HOST is enabled. Reviewed-by: Xiaoyao Li Reviewed-by: David Hildenbrand Signed-off-by: Sean Christopherson Reviewed-by: Fuad Tabba --- arch/x86/kvm/Kconfig | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/arch/x86/kvm/Kconfig b/arch/x86/kvm/Kconfig index 402ba00fdf45..13ab7265b505 100644 --- a/arch/x86/kvm/Kconfig +++ b/arch/x86/kvm/Kconfig @@ -95,8 +95,6 @@ config KVM_SW_PROTECTED_VM config KVM_INTEL tristate "KVM for Intel (and compatible) processors support" depends on KVM && IA32_FEAT_CTL - select KVM_GENERIC_PRIVATE_MEM if INTEL_TDX_HOST - select KVM_GENERIC_MEMORY_ATTRIBUTES if INTEL_TDX_HOST help Provides support for KVM on processors equipped with Intel's VT extensions, a.k.a. Virtual Machine Extensions (VMX). @@ -135,6 +133,8 @@ config KVM_INTEL_TDX bool "Intel Trust Domain Extensions (TDX) support" default y depends on INTEL_TDX_HOST + select KVM_GENERIC_PRIVATE_MEM + select KVM_GENERIC_MEMORY_ATTRIBUTES help Provides support for launching Intel Trust Domain Extensions (TDX) confidential VMs on Intel processors. --=20 2.50.1.552.g942d659e1b-goog