Re: [PATCH v16 04/22] KVM: x86: Select TDX's KVM_GENERIC_xxx dependencies iff CONFIG_KVM_INTEL_TDX=y

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To: Fuad Tabba <tabba@xxxxxxxxxx>, kvm@xxxxxxxxxxxxxxx, linux-arm-msm@xxxxxxxxxxxxxxx, linux-mm@xxxxxxxxx, kvmarm@xxxxxxxxxxxxxxx
Subject: Re: [PATCH v16 04/22] KVM: x86: Select TDX's KVM_GENERIC_xxx dependencies iff CONFIG_KVM_INTEL_TDX=y
From: David Hildenbrand <david@xxxxxxxxxx>
Date: Wed, 23 Jul 2025 15:14:03 +0200
Cc: pbonzini@xxxxxxxxxx, chenhuacai@xxxxxxxxxx, mpe@xxxxxxxxxxxxxx, anup@xxxxxxxxxxxxxx, paul.walmsley@xxxxxxxxxx, palmer@xxxxxxxxxxx, aou@xxxxxxxxxxxxxxxxx, seanjc@xxxxxxxxxx, viro@xxxxxxxxxxxxxxxxxx, brauner@xxxxxxxxxx, willy@xxxxxxxxxxxxx, akpm@xxxxxxxxxxxxxxxxxxxx, xiaoyao.li@xxxxxxxxx, yilun.xu@xxxxxxxxx, chao.p.peng@xxxxxxxxxxxxxxx, jarkko@xxxxxxxxxx, amoorthy@xxxxxxxxxx, dmatlack@xxxxxxxxxx, isaku.yamahata@xxxxxxxxx, mic@xxxxxxxxxxx, vbabka@xxxxxxx, vannapurve@xxxxxxxxxx, ackerleytng@xxxxxxxxxx, mail@xxxxxxxxxxxxxxxxxxxxx, michael.roth@xxxxxxx, wei.w.wang@xxxxxxxxx, liam.merwick@xxxxxxxxxx, isaku.yamahata@xxxxxxxxx, kirill.shutemov@xxxxxxxxxxxxxxx, suzuki.poulose@xxxxxxx, steven.price@xxxxxxx, quic_eberman@xxxxxxxxxxx, quic_mnalajal@xxxxxxxxxxx, quic_tsoni@xxxxxxxxxxx, quic_svaddagi@xxxxxxxxxxx, quic_cvanscha@xxxxxxxxxxx, quic_pderrin@xxxxxxxxxxx, quic_pheragu@xxxxxxxxxxx, catalin.marinas@xxxxxxx, james.morse@xxxxxxx, yuzenghui@xxxxxxxxxx, oliver.upton@xxxxxxxxx, maz@xxxxxxxxxx, will@xxxxxxxxxx, qperret@xxxxxxxxxx, keirf@xxxxxxxxxx, roypat@xxxxxxxxxxxx, shuah@xxxxxxxxxx, hch@xxxxxxxxxxxxx, jgg@xxxxxxxxxx, rientjes@xxxxxxxxxx, jhubbard@xxxxxxxxxx, fvdl@xxxxxxxxxx, hughd@xxxxxxxxxx, jthoughton@xxxxxxxxxx, peterx@xxxxxxxxxx, pankaj.gupta@xxxxxxx, ira.weiny@xxxxxxxxx
In-reply-to: <20250723104714.1674617-5-tabba@google.com>
Organization: Red Hat
References: <20250723104714.1674617-1-tabba@google.com> <20250723104714.1674617-5-tabba@google.com>
User-agent: Mozilla Thunderbird

On 23.07.25 12:46, Fuad Tabba wrote:

From: Sean Christopherson <seanjc@xxxxxxxxxx>

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.

Signed-off-by: Sean Christopherson <seanjc@xxxxxxxxxx>
Signed-off-by: Fuad Tabba <tabba@xxxxxxxxxx>
---


Reviewed-by: David Hildenbrand <david@xxxxxxxxxx>

--
Cheers,

David / dhildenb

References:
- [PATCH v16 00/22] KVM: Enable host userspace mapping for guest_memfd-backed memory for non-CoCo VMs
  - From: Fuad Tabba
- [PATCH v16 04/22] KVM: x86: Select TDX's KVM_GENERIC_xxx dependencies iff CONFIG_KVM_INTEL_TDX=y
  - From: Fuad Tabba

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