KVM: selftests: Add a basic SEV-SNP smoke test

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Extend sev_smoke_test to also run a minimal SEV-SNP smoke test that
initializes and sets up private memory regions required to run a simple
SEV-SNP guest.

Similar to its SEV-ES smoke test counterpart, this also does not
support GHCB and ucall yet and uses the GHCB MSR protocol to trigger an
exit of the type KVM_EXIT_SYSTEM_EVENT.

Signed-off-by: Pratik R. Sampat <prsampat@amd.com>
Link: https://lore.kernel.org/r/20250305230000.231025-11-prsampat@amd.com
Signed-off-by: Sean Christopherson <seanjc@google.com>

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Pratik R. Sampat 2025-03-05 17:00:00 -06:00 • committed by Sean Christopherson

parent a5d55f783f

commit ada014f5fc

1 changed files with 23 additions and 2 deletions

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

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