linux-kernel - [PATCH 00/12] Extend test coverage for nested SVM

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Message-ID: <20251001145816.1414855-1-yosry.ahmed@linux.dev>
Date: Wed,  1 Oct 2025 14:58:04 +0000
From: Yosry Ahmed <yosry.ahmed@...ux.dev>
To: Sean Christopherson <seanjc@...gle.com>
Cc: Paolo Bonzini <pbonzini@...hat.com>,
	kvm@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	Yosry Ahmed <yosry.ahmed@...ux.dev>
Subject: [PATCH 00/12] Extend test coverage for nested SVM

There are multiple selftests exercising nested VMX that are not specific
to VMX (at least not anymore). Extend their coverage to nested SVM.

Yosry Ahmed (12):
  KVM: selftests: Minor improvements to asserts in
    test_vmx_nested_state()
  KVM: selftests: Extend vmx_set_nested_state_test to cover SVM
  KVM: selftests: Extend vmx_close_while_nested_test to cover SVM
  KVM: selftests: Extend vmx_nested_tsc_scaling_test to cover SVM
  KVM: selftests: Remove invalid CR3 test from vmx_tsc_adjust_test
  KVM: selftests: Extend vmx_tsc_adjust_test to cover SVM
  KVM: selftests: Pass the root HVA directly to nested mapping functions
  KVM: selftests: Use 'leaf' instead of hugepage to describe EPT entries
  KVM: selftests: Move all PTE accesses into nested_create_pte()
  KVM: selftests: Move EPT-specific init outside nested_create_pte()
  KVM: selftests: Refactor generic nested mapping outside VMX code
  KVM: selftests: Extend vmx_dirty_log_test to cover SVM

 tools/testing/selftests/kvm/Makefile.kvm      |  11 +-
 .../selftests/kvm/include/x86/nested_map.h    |  20 ++
 .../selftests/kvm/include/x86/svm_util.h      |  13 ++
 tools/testing/selftests/kvm/include/x86/vmx.h |  13 +-
 .../testing/selftests/kvm/lib/x86/memstress.c |   5 +-
 .../selftests/kvm/lib/x86/nested_map.c        | 150 +++++++++++++++
 tools/testing/selftests/kvm/lib/x86/svm.c     |  70 +++++++
 tools/testing/selftests/kvm/lib/x86/vmx.c     | 180 +++---------------
 ...ested_test.c => close_while_nested_test.c} |  42 +++-
 ...rty_log_test.c => nested_dirty_log_test.c} |  95 ++++++---
 ...adjust_test.c => nested_tsc_adjust_test.c} |  79 ++++----
 ...aling_test.c => nested_tsc_scaling_test.c} |  48 ++++-
 ...d_state_test.c => set_nested_state_test.c} | 132 +++++++++++--
 13 files changed, 609 insertions(+), 249 deletions(-)
 create mode 100644 tools/testing/selftests/kvm/include/x86/nested_map.h
 create mode 100644 tools/testing/selftests/kvm/lib/x86/nested_map.c
 rename tools/testing/selftests/kvm/x86/{vmx_close_while_nested_test.c => close_while_nested_test.c} (64%)
 rename tools/testing/selftests/kvm/x86/{vmx_dirty_log_test.c => nested_dirty_log_test.c} (62%)
 rename tools/testing/selftests/kvm/x86/{vmx_tsc_adjust_test.c => nested_tsc_adjust_test.c} (61%)
 rename tools/testing/selftests/kvm/x86/{vmx_nested_tsc_scaling_test.c => nested_tsc_scaling_test.c} (83%)
 rename tools/testing/selftests/kvm/x86/{vmx_set_nested_state_test.c => set_nested_state_test.c} (67%)

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2.51.0.618.g983fd99d29-goog