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KVM: x86: Select TDX's KVM_GENERIC_xxx dependencies iff CONFIG_KVM_INTEL_TDX=y

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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@intel.com>
Reviewed-by: David Hildenbrand <david@redhat.com>
Signed-off-by: Sean Christopherson <seanjc@google.com>
Reviewed-by: Fuad Tabba <tabba@google.com>
Message-ID: <20250729225455.670324-5-seanjc@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Sean Christopherson 2025-07-29 15:54:35 -07:00 • committed by Paolo Bonzini
parent b4ff2efb7e
commit 924121eebd
1 changed files with 2 additions and 2 deletions
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4
arch/x86/kvm/Kconfig
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@ -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.