From: Shivank Garg <shivankg@amd.com>
To: Sean Christopherson <seanjc@google.com>,
Paolo Bonzini <pbonzini@redhat.com>,
David Hildenbrand <david@kernel.org>,
Shuah Khan <shuah@kernel.org>, Jim Mattson <jmattson@google.com>,
Peter Shier <pshier@google.com>,
Ricardo Koller <ricarkol@google.com>,
Ackerley Tng <ackerleytng@google.com>
Cc: <kvm@vger.kernel.org>, <linux-kselftest@vger.kernel.org>,
<linux-kernel@vger.kernel.org>, Shivank Garg <shivankg@amd.com>
Subject: [PATCH v3 0/4] KVM: guest_memfd: fix NUMA selftests
Date: Mon, 7 Sep 2026 07:24:56 +0000 [thread overview]
Message-ID: <20260907-gmem-selftests-fix-v3-0-7a4be5c1cc8a@amd.com> (raw)
NUMA selftests in guest_memfd_test assumes that node 0 and 1 exist and
have memory. However, nodes can be sparse or memoryless which would
break this selftest. Select the nodes from MPOL_F_MEMS_ALLOWED instead.
Based on KVM: selftests: Fix maxnodes bugs and cleanup related code [1]
Tested on a 7.3-rc1+, AMD EPYC 7713.
[1] https://lore.kernel.org/kvm/20260903001625.2792367-1-seanjc@google.com
Changes in v3:
- Rebase on Sean's spin-off series [1] which picks up patch 1 and 2.
- Drop Patch 3 as version in [1] is better. (Sean)
- Split patch 4 of V2 into 4 patches. (Sean)
- Use MAXNODE_FOR_MASK() for maxnode value. (Sean)
- Link to v2: https://lore.kernel.org/r/20260901-gmem-selftests-fix-v2-0-5a273153354c@amd.com
Changes in V2:
- Split from unbind race fix. (Sean)
- Include <linux/bits.h> that defines BITS_PER_TYPE for self-containment. (Sashiko)
- Link to V1: https://lore.kernel.org/kvm/20260823-shivank-gmem-fix-split-v1-0-512a29fb8e86@amd.com
Signed-off-by: Shivank Garg <shivankg@amd.com>
---
Shivank Garg (4):
KVM: selftests: Prepare guest_memfd_test for arbitrary NUMA nodes
KVM: selftests: Use an allowed memory node in test_mbind()
KVM: selftests: Use allowed memory nodes in test_numa_allocation()
KVM: selftests: Drop unused sysfs NUMA helpers
tools/testing/selftests/kvm/guest_memfd_test.c | 61 +++++++++++++++++---------
tools/testing/selftests/kvm/include/numaif.h | 52 ----------------------
2 files changed, 40 insertions(+), 73 deletions(-)
---
base-commit: 88405f0ad1d5c680afe3ea0ce9345fa9e1deaac8
change-id: 20260901-gmem-selftests-fix-2a5e94192f79
prerequisite-message-id: <20260903001625.2792367-1-seanjc@google.com>
prerequisite-patch-id: 6424a3d1e4b372d513b201984c97181a9fc2320d
prerequisite-patch-id: 1d0e83e328934e90b0e8cb9e4c47f9c7c2d12f9b
prerequisite-patch-id: 11bb6b35408a3f251ae7300aa6f1cde2f3ebfac1
prerequisite-patch-id: 7b68398ae0815a4892358359bd067b4cf84c4912
prerequisite-patch-id: 91a2873eeff8555ff7bc728e29a797a07247bdc6
prerequisite-patch-id: d068f85c63973f8bd7606cdb771a3d007b75ad02
prerequisite-patch-id: 26bcf27d961c67b4173bb418fda0a581a6c8a72c
Best regards,
--
Shivank Garg <shivankg@amd.com>
next reply other threads:[~2026-09-07 7:25 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-09-07 7:24 Shivank Garg [this message]
2026-09-07 7:24 ` [PATCH v3 1/4] KVM: selftests: Prepare guest_memfd_test for arbitrary NUMA nodes Shivank Garg
2026-09-07 7:24 ` [PATCH v3 2/4] KVM: selftests: Use an allowed memory node in test_mbind() Shivank Garg
2026-09-07 7:24 ` [PATCH v3 3/4] KVM: selftests: Use allowed memory nodes in test_numa_allocation() Shivank Garg
2026-09-07 7:25 ` [PATCH v3 4/4] KVM: selftests: Drop unused sysfs NUMA helpers Shivank Garg
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