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

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Message-ID: <7o6d5jxr4t6t5p4x3dhnwcllcnzf3radjblqaqd54sc3liilvf@frz74eu2ubb7>
Date: Wed, 1 Oct 2025 17:37:24 +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
Subject: Re: [PATCH 00/12] Extend test coverage for nested SVM

On Wed, Oct 01, 2025 at 02:58:04PM +0000, Yosry Ahmed wrote:
> 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

Ugh, wrong From email on all the patches due to some unorthodox
cherry-picking :)

> 
>  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%)
> 
> -- 
> 2.51.0.618.g983fd99d29-goog
>