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,
jmattson@google.com, joro@8bytes.org, tglx@linutronix.de,
mingo@redhat.com, bp@alien8.de, dave.hansen@linux.intel.com,
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,
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bgardon@google.com, ackerleytng@google.com,
Vishal Annapurve <vannapurve@google.com>
Subject: [V1 PATCH 0/6] selftests: KVM: selftests for fd-based private memory
Date: Fri, 11 Nov 2022 01:42:38 +0000 [thread overview]
Message-ID: <20221111014244.1714148-1-vannapurve@google.com> (raw)
This series implements selftests targeting the feature floated by Chao
via:
https://lore.kernel.org/linux-mm/20221109041358.GA118963@chaop.bj.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 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.
RFC v3 series:
https://lore.kernel.org/lkml/20220819174659.2427983-1-vannapurve@google.com/t/
This series has dependency on following patches:
1) V9 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-v1
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: 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.c | 4 +
arch/x86/kvm/mmu/mmu_internal.h | 4 +-
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 | 37 +++
.../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 | 30 +++
.../selftests/kvm/lib/x86_64/private_mem.c | 211 ++++++++++++++++++
.../selftests/kvm/x86_64/private_mem_test.c | 190 ++++++++++++++++
virt/kvm/Kconfig | 4 +
virt/kvm/kvm_main.c | 2 +-
14 files changed, 555 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
--
2.38.1.431.g37b22c650d-goog
next reply other threads:[~2022-11-11 1:42 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-11-11 1:42 Vishal Annapurve [this message]
2022-11-11 1:42 ` [V1 PATCH 1/6] KVM: x86: Add support for testing private memory Vishal Annapurve
2022-11-22 10:07 ` Chao Peng
2022-11-22 20:06 ` Sean Christopherson
2022-11-24 1:49 ` Marc Orr
2022-11-28 16:21 ` Sean Christopherson
2022-11-24 13:17 ` Chao Peng
2022-12-02 0:26 ` Michael Roth
2022-11-11 1:42 ` [V1 PATCH 2/6] KVM: Selftests: Add support for " Vishal Annapurve
2022-11-11 1:42 ` [V1 PATCH 3/6] KVM: selftests: x86: Add IS_ALIGNED/IS_PAGE_ALIGNED helpers Vishal Annapurve
2022-11-11 1:42 ` [V1 PATCH 4/6] KVM: selftests: x86: Execute VMs with private memory Vishal Annapurve
2022-11-14 19:37 ` Peter Gonda
2022-11-15 1:53 ` Vishal Annapurve
2022-12-08 21:56 ` Vishal Annapurve
2022-11-11 1:42 ` [V1 PATCH 5/6] KVM: selftests: Add get_free_huge_2m_pages Vishal Annapurve
2022-11-11 1:42 ` [V1 PATCH 6/6] KVM: selftests: x86: Add selftest for private memory Vishal Annapurve
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