[RFC PATCH v2 0/6] KVM: gmem: Implement test cases for error_remove_page

From: isaku.yamahata@intel.com
To: kvm@vger.kernel.org, linux-kernel@vger.kernel.org
Cc: isaku.yamahata@intel.com, isaku.yamahata@gmail.com,
	Michael Roth <michael.roth@amd.com>,
	Paolo Bonzini <pbonzini@redhat.com>,
	Sean Christopherson <seanjc@google.com>,
	erdemaktas@google.com, Sagi Shahar <sagis@google.com>,
	David Matlack <dmatlack@google.com>,
	Kai Huang <kai.huang@intel.com>,
	Zhi Wang <zhi.wang.linux@gmail.com>,
	chen.bo@intel.com, linux-coco@lists.linux.dev,
	Chao Peng <chao.p.peng@linux.intel.com>,
	Ackerley Tng <ackerleytng@google.com>,
	Vishal Annapurve <vannapurve@google.com>,
	Yuan Yao <yuan.yao@linux.intel.com>,
	Jarkko Sakkinen <jarkko@kernel.org>,
	Xu Yilun <yilun.xu@intel.com>,
	Quentin Perret <qperret@google.com>,
	wei.w.wang@intel.com, Fuad Tabba <tabba@google.com>
Subject: [RFC PATCH v2 0/6] KVM: gmem: Implement test cases for error_remove_page
Date: Thu, 21 Sep 2023 13:14:33 -0700	[thread overview]
Message-ID: <cover.1695327124.git.isaku.yamahata@intel.com> (raw)

From: Isaku Yamahata <isaku.yamahata@intel.com>

This patch series is to implement test cases for the KVM gmem error_remove_page
method.
- Update punch hole method to truncate pages
- Add a new ioctl KVM_GUEST_MEMORY_FAILURE to inject memory failure on
  offset of gmem

TODO:
- Update TDX KVM to handle it and Add test cases for TDX.
  This will be done by its own patch series.

Changes:
v2:
- rebased to [RFC PATCH v12 00/33] KVM: guest_memfd() and per-page attributes
  https://lore.kernel.org/all/20230914015531.1419405-1-seanjc@google.com/
- introduce new ioctl to inject memory fault on gmem and drop FIBMAP hack
- Implement test cases

v1:
https://lore.kernel.org/all/cover.1694599703.git.isaku.yamahata@intel.com/

Isaku Yamahata (6):
  KVM: gmem: Truncate pages on punch hole
  KVM: selftests: Add negative test cases for punch hole for
    guest_memfd()
  KVM: selftests: Add tests for punch hole on guest_memfd
  KVM: gmem: Add ioctl to inject memory failure on guest memfd
  KVM: selftests: Add test cases for KVM_GUEST_MEMORY_FAILURE
  KVM: guest_memfd: selftest: Add test case for error_remove_page method

 include/uapi/linux/kvm.h                      |   6 +
 tools/testing/selftests/kvm/Makefile          |   1 +
 .../testing/selftests/kvm/guest_memfd_test.c  |  80 ++++
 .../kvm/x86_64/private_mem_conversions_test.c |  26 +-
 .../kvm/x86_64/private_mem_hwpoison_test.c    | 367 ++++++++++++++++++
 virt/kvm/guest_mem.c                          |  82 +++-
 6 files changed, 554 insertions(+), 8 deletions(-)
 create mode 100644 tools/testing/selftests/kvm/x86_64/private_mem_hwpoison_test.c


base-commit: 42dc814987c1feb6410904e58cfd4c36c4146150
prerequisite-patch-id: 3c646922da088ceebe447974a90217f377b76e4a
prerequisite-patch-id: 635c4dca26af8d105a4fd8f603e4a9cf830395c7
prerequisite-patch-id: eede5382aa76c0602a853fc93a1450995c651345
prerequisite-patch-id: 5549aad02248eb5a0c2853058dc7c102044c7a9d
prerequisite-patch-id: ab6557f79edb77246ee1e9955be81a10841e65fd
prerequisite-patch-id: bf75388851ee37a83b37bfa7cb0084f27301f6bc
prerequisite-patch-id: cecffe9a2445f2ea01b9fdb1356b1c87eb6b8fe7
prerequisite-patch-id: e1692d657690f974d836ba3efdd277ea82e675ca
prerequisite-patch-id: 747debe72334ef0cd12bbb42d1acb281eb59cd98
prerequisite-patch-id: 2d1df1bad8af51577ec15a37510ea8bf018b0d4f
prerequisite-patch-id: d05f7429ca893fe0fe3beb460bba1400379cd0d1
prerequisite-patch-id: 9916b6553a61beb9a5435bc0b1fcacf0a87165ea
prerequisite-patch-id: 313219882d617e4d4cb226760d1f071f52b3f882
prerequisite-patch-id: 5412c4037793bc0999377f9732290b9944257b7c
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prerequisite-patch-id: cafe1f6964532d261b950e1879e091dc8c0b4386
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prerequisite-patch-id: 756402fa0914a86ac7db59aa54e36a7bca9d0770
prerequisite-patch-id: 0e93d19cb59f3a052a377a56ff0a4399046818aa
prerequisite-patch-id: 8576bf7ec9f786870e72b78299dcab5dd4eb0d23
prerequisite-patch-id: 0693f3aa65226ff9ffa1f70b6f6da2410ebd0588
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prerequisite-patch-id: 2d62d84b4f9db4148af35495ce1b188c6b46f421
prerequisite-patch-id: b4526dee5b5a95da0a13116ae0c73d4e69efa3c6
prerequisite-patch-id: 8a2b4167ea632413ba8f6d39788ddf19eb928ab0
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prerequisite-patch-id: 4415e2df6492fbb64746e3503deba6e991a0e08b
prerequisite-patch-id: ba50138fe73e9a5f58e19eebaab2c17a2dc231e3
prerequisite-patch-id: 1225df90aeae430a74354bc5ad0ddf508d0707db
prerequisite-patch-id: 4c0e6ab89b9a3ed3a2cb236e942b5842926bf868
prerequisite-patch-id: 59f78d417ca58088e336f8e2a9540d1c95bd2f6c
prerequisite-patch-id: b6a6a8916fe89e7da1fadefb7d311960732e0faf
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2.25.1