KVM: selftests: Add a test for LBR save/restore (ft. nested)

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Add a selftest exercising save/restore with usage of LBRs in both L1 and
L2, and making sure all LBRs remain intact.

Signed-off-by: Yosry Ahmed <yosry@kernel.org>
Link: https://patch.msgid.link/20260303003421.2185681-5-yosry@kernel.org
Signed-off-by: Sean Christopherson <seanjc@google.com>

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Yosry Ahmed 2026-03-03 00:33:58 +00:00 • committed by Sean Christopherson

parent 3700f0788d

commit ac17892e51

3 changed files with 151 additions and 0 deletions

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1

tools/testing/selftests/kvm/Makefile.kvm

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5

tools/testing/selftests/kvm/include/x86/processor.h

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145

tools/testing/selftests/kvm/x86/svm_lbr_nested_state.c

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