linux-kernel - [PATCH v17 04/24] KVM: x86: Select TDX's KVM_GENERIC_xxx dependencies iff CONFIG_KVM_INTEL

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Message-ID: <20250729225455.670324-5-seanjc@google.com>
Date: Tue, 29 Jul 2025 15:54:35 -0700
From: Sean Christopherson <seanjc@...gle.com>
To: Paolo Bonzini <pbonzini@...hat.com>, Marc Zyngier <maz@...nel.org>, 
	Oliver Upton <oliver.upton@...ux.dev>, Sean Christopherson <seanjc@...gle.com>
Cc: kvm@...r.kernel.org, linux-arm-kernel@...ts.infradead.org, 
	kvmarm@...ts.linux.dev, linux-kernel@...r.kernel.org, 
	Ira Weiny <ira.weiny@...el.com>, Gavin Shan <gshan@...hat.com>, Shivank Garg <shivankg@....com>, 
	Vlastimil Babka <vbabka@...e.cz>, Xiaoyao Li <xiaoyao.li@...el.com>, 
	David Hildenbrand <david@...hat.com>, Fuad Tabba <tabba@...gle.com>, 
	Ackerley Tng <ackerleytng@...gle.com>, Tao Chan <chentao@...inos.cn>, 
	James Houghton <jthoughton@...gle.com>
Subject: [PATCH v17 04/24] KVM: x86: Select TDX's KVM_GENERIC_xxx dependencies
 iff CONFIG_KVM_INTEL_TDX=y

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 <xiaoyao.li@...el.com>
Reviewed-by: David Hildenbrand <david@...hat.com>
Signed-off-by: Sean Christopherson <seanjc@...gle.com>
---
 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.
-- 
2.50.1.552.g942d659e1b-goog