[0/9] KVM: selftests: Add nested support to dirty_log_perf_test

Message

David Matlack April 29, 2022, 6:39 p.m. UTC

This series adds support for taking any perf_test_util-based test and
configuring it to run vCPUs in L2 instead of L1, and adds an option to
dirty_log_perf_test to enable it.

This series was used to collect the performance data for eager page
spliting for nested MMUs [1].

[1] https://lore.kernel.org/kvm/[e-mail]/

David Matlack (9):
  KVM: selftests: Replace x86_page_size with raw levels
  KVM: selftests: Add option to create 2M and 1G EPT mappings
  KVM: selftests: Drop stale function parameter comment for nested_map()
  KVM: selftests: Refactor nested_map() to specify target level
  KVM: selftests: Move VMX_EPT_VPID_CAP_AD_BITS to vmx.h
  KVM: selftests: Add a helper to check EPT/VPID capabilities
  KVM: selftests: Link selftests directly with lib object files
  KVM: selftests: Clean up LIBKVM files in Makefile
  KVM: selftests: Add option to run dirty_log_perf_test vCPUs in L2

 tools/testing/selftests/kvm/Makefile          |  50 +++++--
 .../selftests/kvm/dirty_log_perf_test.c       |  10 +-
 .../selftests/kvm/include/perf_test_util.h    |   5 +
 .../selftests/kvm/include/x86_64/processor.h  |  17 +--
 .../selftests/kvm/include/x86_64/vmx.h        |   5 +
 .../selftests/kvm/lib/perf_test_util.c        |  13 +-
 .../selftests/kvm/lib/x86_64/perf_test_util.c |  89 +++++++++++
 .../selftests/kvm/lib/x86_64/processor.c      |  27 ++--
 tools/testing/selftests/kvm/lib/x86_64/vmx.c  | 140 +++++++++++-------
 .../selftests/kvm/max_guest_memory_test.c     |   2 +-
 .../selftests/kvm/x86_64/mmu_role_test.c      |   2 +-
 11 files changed, 262 insertions(+), 98 deletions(-)
 create mode 100644 tools/testing/selftests/kvm/lib/x86_64/perf_test_util.c


base-commit: 84e5ffd045f33e4fa32370135436d987478d0bf7