From: Vishal Annapurve <vannapurve@google.com>
To: x86@kernel.org, kvm@vger.kernel.org,
linux-kernel@vger.kernel.org, linux-kselftest@vger.kernel.org
Cc: pbonzini@redhat.com, vkuznets@redhat.com, wanpengli@tencent.com,
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hpa@zytor.com, shuah@kernel.org, yang.zhong@intel.com,
ricarkol@google.com, aaronlewis@google.com, wei.w.wang@intel.com,
kirill.shutemov@linux.intel.com, corbet@lwn.net,
hughd@google.com, jlayton@kernel.org, bfields@fieldses.org,
akpm@linux-foundation.org, chao.p.peng@linux.intel.com,
yu.c.zhang@linux.intel.com, jun.nakajima@intel.com,
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maciej.szmigiero@oracle.com, mizhang@google.com,
bgardon@google.com, ackerleytng@google.com,
Vishal Annapurve <vannapurve@google.com>
Subject: [V2 PATCH 0/6] KVM: selftests: selftests for fd-based private memory
Date: Mon, 5 Dec 2022 23:23:35 +0000 [thread overview]
Message-ID: <20221205232341.4131240-1-vannapurve@google.com> (raw)
This series implements selftests targeting the feature floated by Chao via:
https://lore.kernel.org/lkml/20221202061347.1070246-10-chao.p.peng@linux.intel.com/T/
Below changes aim to test the fd based approach for guest private memory
in context of normal (non-confidential) VMs executing on non-confidential
platforms.
private_mem_test.c file adds selftest to access private memory from the
guest via private/shared accesses and checking if the contents can be
leaked to/accessed by vmm via shared memory view before/after conversions.
Updates in V2:
1) Simplified vcpu run loop implementation API
2) Removed VM creation logic from private mem library
Updates in V1 (Compared to RFC v3 patches):
1) Incorporated suggestions from Sean around simplifying KVM changes
2) Addressed comments from Sean
3) Added private mem test with shared memory backed by 2MB hugepages.
V1 series:
https://lore.kernel.org/lkml/20221111014244.1714148-1-vannapurve@google.com/T/
This series has dependency on following patches:
1) V10 series patches from Chao mentioned above.
Github link for the patches posted as part of this series:
https://github.com/vishals4gh/linux/commits/priv_memfd_selftests_v2
Vishal Annapurve (6):
KVM: x86: Add support for testing private memory
KVM: Selftests: Add support for private memory
KVM: selftests: x86: Add IS_ALIGNED/IS_PAGE_ALIGNED helpers
KVM: selftests: x86: Add helpers to execute VMs with private memory
KVM: selftests: Add get_free_huge_2m_pages
KVM: selftests: x86: Add selftest for private memory
arch/x86/kvm/mmu/mmu_internal.h | 6 +-
tools/testing/selftests/kvm/.gitignore | 1 +
tools/testing/selftests/kvm/Makefile | 2 +
.../selftests/kvm/include/kvm_util_base.h | 15 +-
.../testing/selftests/kvm/include/test_util.h | 5 +
.../kvm/include/x86_64/private_mem.h | 24 ++
.../selftests/kvm/include/x86_64/processor.h | 1 +
tools/testing/selftests/kvm/lib/kvm_util.c | 58 ++++-
tools/testing/selftests/kvm/lib/test_util.c | 29 +++
.../selftests/kvm/lib/x86_64/private_mem.c | 139 ++++++++++++
.../selftests/kvm/x86_64/private_mem_test.c | 212 ++++++++++++++++++
virt/kvm/Kconfig | 4 +
virt/kvm/kvm_main.c | 3 +-
13 files changed, 490 insertions(+), 9 deletions(-)
create mode 100644 tools/testing/selftests/kvm/include/x86_64/private_mem.h
create mode 100644 tools/testing/selftests/kvm/lib/x86_64/private_mem.c
create mode 100644 tools/testing/selftests/kvm/x86_64/private_mem_test.c
--
2.39.0.rc0.267.gcb52ba06e7-goog
next reply other threads:[~2022-12-05 23:23 UTC|newest]
Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-12-05 23:23 Vishal Annapurve [this message]
2022-12-05 23:23 ` [V2 PATCH 1/6] KVM: x86: Add support for testing private memory Vishal Annapurve
2023-01-17 21:39 ` Sean Christopherson
2023-01-17 22:58 ` Vishal Annapurve
2022-12-05 23:23 ` [V2 PATCH 2/6] KVM: Selftests: Add support for " Vishal Annapurve
2023-01-17 21:46 ` Sean Christopherson
2023-01-17 23:03 ` Vishal Annapurve
2022-12-05 23:23 ` [V2 PATCH 3/6] KVM: selftests: x86: Add IS_ALIGNED/IS_PAGE_ALIGNED helpers Vishal Annapurve
2023-01-17 21:48 ` Sean Christopherson
2023-01-17 23:06 ` Vishal Annapurve
2022-12-05 23:23 ` [V2 PATCH 4/6] KVM: selftests: x86: Add helpers to execute VMs with private memory Vishal Annapurve
2023-01-17 22:06 ` Sean Christopherson
2023-01-17 22:51 ` Sean Christopherson
2022-12-05 23:23 ` [V2 PATCH 5/6] KVM: selftests: Add get_free_huge_2m_pages Vishal Annapurve
2023-01-17 22:12 ` Sean Christopherson
2022-12-05 23:23 ` [V2 PATCH 6/6] KVM: selftests: x86: Add selftest for private memory Vishal Annapurve
2023-01-18 0:53 ` Sean Christopherson
2023-01-18 1:09 ` [V2 PATCH 0/6] KVM: selftests: selftests for fd-based " Sean Christopherson
2023-01-18 3:11 ` Vishal Annapurve
2023-02-10 19:59 ` Vishal Annapurve
2023-02-22 2:50 ` Chao Peng
2023-03-06 18:21 ` Ackerley Tng
2023-03-07 2:18 ` Chao Peng
2023-03-08 1:59 ` Ackerley Tng
2023-03-08 20:11 ` Sean Christopherson
2023-01-18 11:25 ` Kirill A. Shutemov
2023-01-18 17:17 ` Sean Christopherson
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