Re: [PATCH v16 00/22] KVM: Enable host userspace mapping for guest_memfd-backed memory for non-CoCo VMs

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To: Fuad Tabba <tabba@xxxxxxxxxx>, kvm@xxxxxxxxxxxxxxx, linux-arm-msm@xxxxxxxxxxxxxxx, linux-mm@xxxxxxxxx, kvmarm@xxxxxxxxxxxxxxx
Subject: Re: [PATCH v16 00/22] KVM: Enable host userspace mapping for guest_memfd-backed memory for non-CoCo VMs
From: Ackerley Tng <ackerleytng@xxxxxxxxxx>
Date: Thu, 24 Jul 2025 16:46:50 -0700
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, mail@xxxxxxxxxxxxxxxxxxxxx, david@xxxxxxxxxx, 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, tabba@xxxxxxxxxx
In-reply-to: <20250723104714.1674617-1-tabba@google.com>
References: <20250723104714.1674617-1-tabba@google.com>

Fuad Tabba <tabba@xxxxxxxxxx> writes:

[snip]

Did the patch [1] for x86/mmu that actually allows faulting when
kvm_memslot_is_gmem_only() get dropped by accident?

[1] https://lore.kernel.org/all/20250717162731.446579-14-tabba@xxxxxxxxxx/

Follow-Ups:
- Re: [PATCH v16 00/22] KVM: Enable host userspace mapping for guest_memfd-backed memory for non-CoCo VMs
  - From: Sean Christopherson

References:
- [PATCH v16 00/22] KVM: Enable host userspace mapping for guest_memfd-backed memory for non-CoCo VMs
  - From: Fuad Tabba

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