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Thu, 24 Jul 2025 15:44:47 -0700 (PDT) Date: Thu, 24 Jul 2025 15:44:45 -0700 In-Reply-To: <20250723104714.1674617-1-tabba@google.com> Precedence: bulk X-Mailing-List: kvm@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 References: <20250723104714.1674617-1-tabba@google.com> Message-ID: Subject: Re: [PATCH v16 00/22] KVM: Enable host userspace mapping for guest_memfd-backed memory for non-CoCo VMs From: Sean Christopherson To: Fuad Tabba Cc: kvm@vger.kernel.org, linux-arm-msm@vger.kernel.org, linux-mm@kvack.org, kvmarm@lists.linux.dev, pbonzini@redhat.com, chenhuacai@kernel.org, mpe@ellerman.id.au, anup@brainfault.org, paul.walmsley@sifive.com, palmer@dabbelt.com, aou@eecs.berkeley.edu, viro@zeniv.linux.org.uk, brauner@kernel.org, willy@infradead.org, akpm@linux-foundation.org, xiaoyao.li@intel.com, yilun.xu@intel.com, chao.p.peng@linux.intel.com, jarkko@kernel.org, amoorthy@google.com, dmatlack@google.com, isaku.yamahata@intel.com, mic@digikod.net, vbabka@suse.cz, vannapurve@google.com, ackerleytng@google.com, mail@maciej.szmigiero.name, david@redhat.com, michael.roth@amd.com, wei.w.wang@intel.com, liam.merwick@oracle.com, isaku.yamahata@gmail.com, kirill.shutemov@linux.intel.com, suzuki.poulose@arm.com, steven.price@arm.com, quic_eberman@quicinc.com, quic_mnalajal@quicinc.com, quic_tsoni@quicinc.com, quic_svaddagi@quicinc.com, quic_cvanscha@quicinc.com, quic_pderrin@quicinc.com, quic_pheragu@quicinc.com, catalin.marinas@arm.com, james.morse@arm.com, yuzenghui@huawei.com, oliver.upton@linux.dev, maz@kernel.org, will@kernel.org, qperret@google.com, keirf@google.com, roypat@amazon.co.uk, shuah@kernel.org, hch@infradead.org, jgg@nvidia.com, rientjes@google.com, jhubbard@nvidia.com, fvdl@google.com, hughd@google.com, jthoughton@google.com, peterx@redhat.com, pankaj.gupta@amd.com, ira.weiny@intel.com Content-Type: text/plain; charset="us-ascii" On Wed, Jul 23, 2025, Fuad Tabba wrote: > Ackerley Tng (1): > KVM: x86/mmu: Rename .private_max_mapping_level() to > .gmem_max_mapping_level() > > Fuad Tabba (15): > KVM: Rename CONFIG_KVM_PRIVATE_MEM to CONFIG_KVM_GUEST_MEMFD > KVM: Rename CONFIG_KVM_GENERIC_PRIVATE_MEM to > CONFIG_HAVE_KVM_ARCH_GMEM_POPULATE > KVM: Rename kvm_slot_can_be_private() to kvm_slot_has_gmem() > KVM: Fix comments that refer to slots_lock > KVM: Fix comment that refers to kvm uapi header path > KVM: x86: Enable KVM_GUEST_MEMFD for all 64-bit builds > KVM: guest_memfd: Add plumbing to host to map guest_memfd pages > KVM: guest_memfd: Track guest_memfd mmap support in memslot > KVM: arm64: Refactor user_mem_abort() > KVM: arm64: Handle guest_memfd-backed guest page faults > KVM: arm64: nv: Handle VNCR_EL2-triggered faults backed by guest_memfd > KVM: arm64: Enable support for guest_memfd backed memory > KVM: Allow and advertise support for host mmap() on guest_memfd files > KVM: selftests: Do not use hardcoded page sizes in guest_memfd test > KVM: selftests: guest_memfd mmap() test when mmap is supported > > Sean Christopherson (6): > KVM: x86: Have all vendor neutral sub-configs depend on KVM_X86, not > just KVM > KVM: x86: Select KVM_GENERIC_PRIVATE_MEM directly from > KVM_SW_PROTECTED_VM > KVM: x86: Select TDX's KVM_GENERIC_xxx dependencies iff > CONFIG_KVM_INTEL_TDX=y > KVM: x86/mmu: Hoist guest_memfd max level/order helpers "up" in mmu.c > KVM: x86/mmu: Enforce guest_memfd's max order when recovering > hugepages > KVM: x86/mmu: Extend guest_memfd's max mapping level to shared > mappings AFAICT, I've run out of things to complain about. :-D I say wait one more day just in case the peanut gallery comes alive, then spin a hopefully-final v17 early next week. Or holler if you want me to tidy things up and send v17, most of the goofs that necessitate v17 are mine :-)