From: Ackerley Tng <ackerleytng@google.com>
To: devnull+ackerleytng.google.com@kernel.org
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Subject: [POC PATCH 0/5] guest_memfd in-place conversion selftests for SNP
Date: Thu, 7 May 2026 13:34:21 -0700 [thread overview]
Message-ID: <cover.1778185936.git.ackerleytng@google.com> (raw)
In-Reply-To: <20260507-gmem-inplace-conversion-v6-0-91ab5a8b19a4@google.com>
With these POC patches, I was able to test the set memory
attributes/conversion ioctls with SNP.
After allowing src_addr to be NULL, SNP_LAUNCH_UPDATE can accept NULL
for source address and the SNP VM runs fine. :)
Ackerley Tng (5):
KVM: selftests: Initialize guest_memfd with INIT_SHARED
KVM: selftests: Use guest_memfd memory contents in-place for SNP
launch update
KVM: selftests: Make guest_code_xsave more friendly
KVM: selftests: Allow specifying CoCo-privateness while mapping a page
KVM: selftests: Test conversions for SNP
.../selftests/kvm/include/x86/processor.h | 2 +
tools/testing/selftests/kvm/lib/kvm_util.c | 12 +-
.../testing/selftests/kvm/lib/x86/processor.c | 13 +-
tools/testing/selftests/kvm/lib/x86/sev.c | 3 +-
.../selftests/kvm/x86/sev_smoke_test.c | 222 +++++++++++++++++-
5 files changed, 234 insertions(+), 18 deletions(-)
--
2.54.0.563.g4f69b47b94-goog
next prev parent reply other threads:[~2026-05-07 20:34 UTC|newest]
Thread overview: 51+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-05-07 20:22 [PATCH v6 00/43] guest_memfd: In-place conversion support Ackerley Tng via B4 Relay
2026-05-07 20:22 ` [PATCH v6 01/43] KVM: guest_memfd: Introduce per-gmem attributes, use to guard user mappings Ackerley Tng via B4 Relay
2026-05-08 23:36 ` Ackerley Tng
2026-05-07 20:22 ` [PATCH v6 02/43] KVM: Rename KVM_GENERIC_MEMORY_ATTRIBUTES to KVM_VM_MEMORY_ATTRIBUTES Ackerley Tng via B4 Relay
2026-05-07 20:22 ` [PATCH v6 03/43] KVM: Enumerate support for PRIVATE memory iff kvm_arch_has_private_mem is defined Ackerley Tng via B4 Relay
2026-05-07 20:22 ` [PATCH v6 04/43] KVM: Stub in ability to disable per-VM memory attribute tracking Ackerley Tng via B4 Relay
2026-05-07 20:22 ` [PATCH v6 05/43] KVM: guest_memfd: Wire up kvm_get_memory_attributes() to per-gmem attributes Ackerley Tng via B4 Relay
2026-05-07 20:22 ` [PATCH v6 06/43] KVM: x86/mmu: Bug the VM if gmem attributes are queried to determine max mapping level Ackerley Tng via B4 Relay
2026-05-07 20:22 ` [PATCH v6 07/43] KVM: guest_memfd: Update kvm_gmem_populate() to use gmem attributes Ackerley Tng via B4 Relay
2026-05-07 20:22 ` [PATCH v6 08/43] KVM: guest_memfd: Only prepare folios for private pages Ackerley Tng via B4 Relay
2026-05-07 20:22 ` [PATCH v6 09/43] KVM: Move kvm_supported_mem_attributes() to kvm_host.h Ackerley Tng via B4 Relay
2026-05-07 20:22 ` [PATCH v6 10/43] KVM: guest_memfd: Add base support for KVM_SET_MEMORY_ATTRIBUTES2 Ackerley Tng via B4 Relay
2026-05-07 20:22 ` [PATCH v6 11/43] KVM: guest_memfd: Ensure pages are not in use before conversion Ackerley Tng via B4 Relay
2026-05-07 20:22 ` [PATCH v6 12/43] KVM: guest_memfd: Call arch invalidate hooks on conversion Ackerley Tng via B4 Relay
2026-05-07 20:22 ` [PATCH v6 13/43] KVM: guest_memfd: Return early if range already has requested attributes Ackerley Tng via B4 Relay
2026-05-07 20:22 ` [PATCH v6 14/43] KVM: guest_memfd: Advertise KVM_SET_MEMORY_ATTRIBUTES2 ioctl Ackerley Tng via B4 Relay
2026-05-07 20:22 ` [PATCH v6 15/43] KVM: guest_memfd: Handle lru_add fbatch refcounts during conversion safety check Ackerley Tng via B4 Relay
2026-05-07 20:22 ` [PATCH v6 16/43] KVM: guest_memfd: Use actual size for invalidation in kvm_gmem_release() Ackerley Tng via B4 Relay
2026-05-07 20:22 ` [PATCH v6 17/43] KVM: guest_memfd: Determine invalidation filter from memory attributes Ackerley Tng via B4 Relay
2026-05-07 20:22 ` [PATCH v6 18/43] KVM: Move KVM_VM_MEMORY_ATTRIBUTES config definition to x86 Ackerley Tng via B4 Relay
2026-05-07 20:22 ` [PATCH v6 19/43] KVM: Let userspace disable per-VM mem attributes, enable per-gmem attributes Ackerley Tng via B4 Relay
2026-05-07 20:22 ` [PATCH v6 20/43] KVM: guest_memfd: Enable INIT_SHARED on guest_memfd for x86 Coco VMs Ackerley Tng via B4 Relay
2026-05-07 20:22 ` [PATCH v6 21/43] KVM: SEV: Make 'uaddr' parameter optional for KVM_SEV_SNP_LAUNCH_UPDATE Ackerley Tng via B4 Relay
2026-05-07 20:22 ` [PATCH v6 22/43] KVM: TDX: Make source page optional for KVM_TDX_INIT_MEM_REGION Ackerley Tng via B4 Relay
2026-05-07 20:22 ` [PATCH v6 23/43] KVM: selftests: Create gmem fd before "regular" fd when adding memslot Ackerley Tng via B4 Relay
2026-05-07 20:22 ` [PATCH v6 24/43] KVM: selftests: Rename guest_memfd{,_offset} to gmem_{fd,offset} Ackerley Tng via B4 Relay
2026-05-07 20:22 ` [PATCH v6 25/43] KVM: selftests: Add support for mmap() on guest_memfd in core library Ackerley Tng via B4 Relay
2026-05-07 20:22 ` [PATCH v6 26/43] KVM: selftests: Add selftests global for guest memory attributes capability Ackerley Tng via B4 Relay
2026-05-07 20:22 ` [PATCH v6 27/43] KVM: selftests: Add helpers for calling ioctls on guest_memfd Ackerley Tng via B4 Relay
2026-05-07 20:22 ` [PATCH v6 28/43] KVM: selftests: Test basic single-page conversion flow Ackerley Tng via B4 Relay
2026-05-07 20:22 ` [PATCH v6 29/43] KVM: selftests: Test conversion flow when INIT_SHARED Ackerley Tng via B4 Relay
2026-05-07 20:22 ` [PATCH v6 30/43] KVM: selftests: Test conversion precision in guest_memfd Ackerley Tng via B4 Relay
2026-05-07 20:22 ` [PATCH v6 31/43] KVM: selftests: Test conversion before allocation Ackerley Tng via B4 Relay
2026-05-07 20:22 ` [PATCH v6 32/43] KVM: selftests: Convert with allocated folios in different layouts Ackerley Tng via B4 Relay
2026-05-07 20:22 ` [PATCH v6 33/43] KVM: selftests: Test that truncation does not change shared/private status Ackerley Tng via B4 Relay
2026-05-07 20:22 ` [PATCH v6 34/43] KVM: selftests: Test that shared/private status is consistent across processes Ackerley Tng via B4 Relay
2026-05-07 20:22 ` [PATCH v6 35/43] KVM: selftests: Test conversion with elevated page refcount Ackerley Tng via B4 Relay
2026-05-07 20:22 ` [PATCH v6 36/43] KVM: selftests: Reset shared memory after hole-punching Ackerley Tng via B4 Relay
2026-05-07 20:22 ` [PATCH v6 37/43] KVM: selftests: Provide function to look up guest_memfd details from gpa Ackerley Tng via B4 Relay
2026-05-07 20:22 ` [PATCH v6 38/43] KVM: selftests: Provide common function to set memory attributes Ackerley Tng via B4 Relay
2026-05-07 20:22 ` [PATCH v6 39/43] KVM: selftests: Check fd/flags provided to mmap() when setting up memslot Ackerley Tng via B4 Relay
2026-05-07 20:22 ` [PATCH v6 40/43] KVM: selftests: Make TEST_EXPECT_SIGBUS thread-safe Ackerley Tng via B4 Relay
2026-05-07 20:23 ` [PATCH v6 41/43] KVM: selftests: Update private_mem_conversions_test to mmap() guest_memfd Ackerley Tng via B4 Relay
2026-05-07 20:23 ` [PATCH v6 42/43] KVM: selftests: Add script to exercise private_mem_conversions_test Ackerley Tng via B4 Relay
2026-05-07 20:23 ` [PATCH v6 43/43] KVM: selftests: Update private memory exits test to work with per-gmem attributes Ackerley Tng via B4 Relay
2026-05-07 20:34 ` Ackerley Tng [this message]
2026-05-07 20:34 ` [POC PATCH 1/5] KVM: selftests: Initialize guest_memfd with INIT_SHARED Ackerley Tng
2026-05-07 20:34 ` [POC PATCH 2/5] KVM: selftests: Use guest_memfd memory contents in-place for SNP launch update Ackerley Tng
2026-05-07 20:34 ` [POC PATCH 3/5] KVM: selftests: Make guest_code_xsave more friendly Ackerley Tng
2026-05-07 20:34 ` [POC PATCH 4/5] KVM: selftests: Allow specifying CoCo-privateness while mapping a page Ackerley Tng
2026-05-07 20:34 ` [POC PATCH 5/5] KVM: selftests: Test conversions for SNP Ackerley Tng
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