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Reply-To: Sean Christopherson <seanjc@google.com>
Date:   Wed, 10 Feb 2021 15:06:10 -0800
Message-Id: <20210210230625.550939-1-seanjc@google.com>
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Subject: [PATCH 00/15] VM: selftests: Hugepage fixes and cleanups
From:   Sean Christopherson <seanjc@google.com>
To:     Paolo Bonzini <pbonzini@redhat.com>
Cc:     kvm@vger.kernel.org, linux-kernel@vger.kernel.org,
        Sean Christopherson <seanjc@google.com>,
        Ben Gardon <bgardon@google.com>,
        Yanan Wang <wangyanan55@huawei.com>,
        Andrew Jones <drjones@redhat.com>,
        Peter Xu <peterx@redhat.com>,
        Aaron Lewis <aaronlewis@google.com>
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Precedence: bulk

Fix hugepage bugs in the KVM selftests that specifically affect dirty
logging and demand paging tests.  Found while attempting to verify KVM
changes/fixes related to hugepages and dirty logging (patches incoming in
a separate series).

Clean up the perf_test_args util on top of the hugepage fixes to clarify
what "page size" means, and to improve confidence in the code doing what
it thinks it's doing.  In a few cases, users of perf_test_args were
duplicating (approximating?) calculations made by perf_test_args, and it
wasn't obvious that both pieces of code were guaranteed to end up with the
same result.

Sean Christopherson (15):
  KVM: selftests: Explicitly state indicies for vm_guest_mode_params
    array
  KVM: selftests: Expose align() helpers to tests
  KVM: selftests: Align HVA for HugeTLB-backed memslots
  KVM: selftests: Force stronger HVA alignment (1gb) for hugepages
  KVM: selftests: Require GPA to be aligned when backed by hugepages
  KVM: selftests: Use shorthand local var to access struct
    perf_tests_args
  KVM: selftests: Capture per-vCPU GPA in perf_test_vcpu_args
  KVM: selftests: Use perf util's per-vCPU GPA/pages in demand paging
    test
  KVM: selftests: Move per-VM GPA into perf_test_args
  KVM: selftests: Remove perf_test_args.host_page_size
  KVM: selftests: Create VM with adjusted number of guest pages for perf
    tests
  KVM: selftests: Fill per-vCPU struct during "perf_test" VM creation
  KVM: selftests: Sync perf_test_args to guest during VM creation
  KVM: selftests: Track size of per-VM memslot in perf_test_args
  KVM: selftests: Get rid of gorilla math in memslots modification test

 .../selftests/kvm/demand_paging_test.c        |  39 ++---
 .../selftests/kvm/dirty_log_perf_test.c       |  10 +-
 .../testing/selftests/kvm/include/kvm_util.h  |  28 ++++
 .../selftests/kvm/include/perf_test_util.h    |  18 +--
 tools/testing/selftests/kvm/lib/kvm_util.c    |  36 ++---
 .../selftests/kvm/lib/perf_test_util.c        | 139 ++++++++++--------
 .../kvm/memslot_modification_stress_test.c    |  16 +-
 7 files changed, 145 insertions(+), 141 deletions(-)

-- 
2.30.0.478.g8a0d178c01-goog