Subject	guest_memfd: In-place conversion support
Author	ackerleytng@google.com
Date	2026-08-26 09:17:59 +0000 UTC
Version	Version 1 Version 2 Version 3 Version 4 Version 5 Version 6 Version 7 Version 8 Version 9 Version 10 Version 11
Cc	ackerleytng@google.com aik@amd.com akpm@linux-foundation.org andrew.jones@linux.dev aneesh.kumar@kernel.org axelrasmussen@google.com baohua@kernel.org baoquan.he@linux.dev binbin.wu@linux.intel.com bp@alien8.de brauner@kernel.org chao.p.peng@linux.intel.com chrisl@kernel.org corbet@lwn.net dave.hansen@linux.intel.com david@kernel.org forkloop@google.com fuad.tabba@linux.dev hpa@zytor.com jgg@ziepe.ca jhubbard@nvidia.com jmattson@google.com jthoughton@google.com kas@kernel.org kasong@tencent.com kvm@vger.kernel.org liam@infradead.org linux-coco@lists.linux.dev linux-doc@vger.kernel.org linux-kernel@vger.kernel.org linux-kselftest@vger.kernel.org linux-mm@kvack.org linux-trace-kernel@vger.kernel.org mathieu.desnoyers@efficios.com mhiramat@kernel.org michael.roth@amd.com mingo@redhat.com nphamcs@gmail.com oupton@kernel.org pankaj.gupta@amd.com pbonzini@redhat.com peterx@redhat.com pratyush@kernel.org qi.zheng@linux.dev qperret@google.com rick.p.edgecombe@intel.com rientjes@google.com rostedt@goodmis.org seanjc@google.com shakeel.butt@linux.dev

Patches (46)

Name	Content [All]
[PATCH v11 01/46] KVM: guest_memfd: Optimize away conversion overheads via dead-code elimination	[Body]
[PATCH v11 02/46] KVM: guest_memfd: Use kvm_mem_is_private() when populating guest_memfd memory	[Body]
[PATCH v11 03/46] KVM: guest_memfd: Introduce per-gmem attributes, use to guard user mappings	[Body]
[PATCH v11 04/46] KVM: Rename KVM_GENERIC_MEMORY_ATTRIBUTES to KVM_VM_MEMORY_ATTRIBUTES	[Body]
[PATCH v11 05/46] KVM: Enumerate support for PRIVATE memory iff kvm_arch_has_private_mem is defined	[Body]
[PATCH v11 06/46] KVM: Rename memory attribute APIs to prepare for in-place gmem conversion	[Body]
[PATCH v11 07/46] KVM: Rename kvm_mem_is_private() to kvm_is_private_gfn()	[Body]
[PATCH v11 08/46] KVM: Provide generic interface for checking memory private/shared status	[Body]
[PATCH v11 09/46] KVM: guest_memfd: Stub in ability to enable in-place shared<=>private conversion	[Body]
[PATCH v11 10/46] KVM: Consolidate private memory and guest_memfd ifdeffery in kvm_host.h	[Body]
[PATCH v11 11/46] KVM: guest_memfd: Invalidate both SHARED and PRIVATE mappings for in-place conversions	[Body]
[PATCH v11 12/46] KVM: guest_memfd: Pass mapping type filter to invalidation helper	[Body]
[PATCH v11 13/46] KVM: guest_memfd: Add base support for KVM_SET_MEMORY_ATTRIBUTES2	[Body]
[PATCH v11 14/46] KVM: guest_memfd: Ensure pages are not in use before conversion	[Body]
[PATCH v11 15/46] KVM: guest_memfd: Call arch make_shared callback for to-shared conversion	[Body]
[PATCH v11 16/46] KVM: guest_memfd: Return early if range already has requested attributes	[Body]
[PATCH v11 17/46] mm/gup: factor out LRU cache draining for folio into lru_cache_drain_for_folio()	[Body]
[PATCH v11 18/46] KVM: guest_memfd: Handle lru_add fbatch refcounts during conversion safety check	[Body]
[PATCH v11 19/46] KVM: guest_memfd: Zero page while getting pfn	[Body]
[PATCH v11 20/46] KVM: SEV: Make 'uaddr' parameter optional for KVM_SEV_SNP_LAUNCH_UPDATE	[Body]
[PATCH v11 21/46] KVM: TDX: Make source page optional for KVM_TDX_INIT_MEM_REGION	[Body]
[PATCH v11 22/46] KVM: Move KVM_VM_MEMORY_ATTRIBUTES config definition to x86	[Body]
[PATCH v11 23/46] KVM: Let userspace disable per-VM mem attributes, enable per-gmem attributes	[Body]
[PATCH v11 24/46] KVM: guest_memfd: Enable INIT_SHARED on guest_memfd for x86 Coco VMs	[Body]
[PATCH v11 25/46] KVM: selftests: Create gmem fd before "regular" fd when adding memslot	[Body]
[PATCH v11 26/46] KVM: selftests: Rename guest_memfd{,_offset} to gmem_{fd,offset}	[Body]
[PATCH v11 27/46] KVM: selftests: Add support for mmap() on guest_memfd in core library	[Body]
[PATCH v11 28/46] KVM: selftests: Add selftests global for guest memory attributes capability	[Body]
[PATCH v11 29/46] KVM: selftests: Add helpers for calling ioctls on guest_memfd	[Body]
[PATCH v11 30/46] KVM: selftests: Test basic single-page conversion flow	[Body]
[PATCH v11 31/46] KVM: selftests: Test conversion flow when INIT_SHARED	[Body]
[PATCH v11 32/46] KVM: selftests: Test conversion precision in guest_memfd	[Body]
[PATCH v11 33/46] KVM: selftests: Test conversion before allocation	[Body]
[PATCH v11 34/46] KVM: selftests: Convert with allocated folios in different layouts	[Body]
[PATCH v11 35/46] KVM: selftests: Test that truncation does not change shared/private status	[Body]
[PATCH v11 36/46] KVM: selftests: Test that shared/private status is consistent across processes	[Body]
[PATCH v11 37/46] KVM: selftests: Add helpers to pin pages with CONFIG_GUP_TEST	[Body]
[PATCH v11 38/46] KVM: selftests: Test conversion with elevated page refcount	[Body]
[PATCH v11 39/46] KVM: selftests: Reset shared memory after hole-punching	[Body]
[PATCH v11 40/46] KVM: selftests: Provide function to look up guest_memfd details from gpa	[Body]
[PATCH v11 41/46] KVM: selftests: Provide common function to set memory attributes	[Body]
[PATCH v11 42/46] KVM: selftests: Make TEST_EXPECT_SIGBUS thread-safe	[Body]
[PATCH v11 43/46] KVM: selftests: Support guest_memfd attributes in private_mem_conversions_test	[Body]
[PATCH v11 44/46] KVM: selftests: Set up page size and alignment independently for guest_memfd	[Body]
[PATCH v11 45/46] KVM: selftests: Test in-place conversions in private_mem_conversions_test	[Body]
[PATCH v11 46/46] KVM: selftests: Update private memory exits test to work with per-gmem attributes	[Body]

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