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40e09b3c |
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22-Feb-2024 |
Sean Christopherson <seanjc@google.com> |
KVM: selftests: Add a basic SEV-ES smoke test Extend sev_smoke_test to also run a minimal SEV-ES smoke test so that it's possible to test KVM's unique VMRUN=>#VMEXIT path for SEV-ES guests without needing a full blown SEV-ES capable VM, which requires a rather absurd amount of properly configured collateral. Punt on proper GHCB and ucall support, and instead use the GHCB MSR protocol to signal test completion. The most important thing at this point is to have _any_ kind of testing of KVM's __svm_sev_es_vcpu_run(). Cc: Tom Lendacky <thomas.lendacky@amd.com> Cc: Michael Roth <michael.roth@amd.com> Cc: Peter Gonda <pgonda@google.com> Cc: Carlos Bilbao <carlos.bilbao@amd.com> Tested-by: Carlos Bilbao <carlos.bilbao@amd.com> Link: https://lore.kernel.org/r/20240223004258.3104051-12-seanjc@google.com Signed-off-by: Sean Christopherson <seanjc@google.com>
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ae20eef5 |
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22-Feb-2024 |
Peter Gonda <pgonda@google.com> |
KVM: selftests: Add library for creating and interacting with SEV guests Add a library/APIs for creating and interfacing with SEV guests, all of which need some amount of common functionality, e.g. an open file handle for the SEV driver (/dev/sev), ioctl() wrappers to pass said file handle to KVM, tracking of the C-bit, etc. Add an x86-specific hook to initialize address properties, a.k.a. the location of the C-bit. An arch specific hook is rather gross, but x86 already has a dedicated #ifdef-protected kvm_get_cpu_address_width() hook, i.e. the ugliest code already exists. Cc: Paolo Bonzini <pbonzini@redhat.com> Cc: Sean Christopherson <seanjc@google.com> Cc: Vishal Annapurve <vannapurve@google.com> Cc: Ackerly Tng <ackerleytng@google.com> cc: Andrew Jones <andrew.jones@linux.dev> Cc: Tom Lendacky <thomas.lendacky@amd.com> Cc: Michael Roth <michael.roth@amd.com> Tested-by: Carlos Bilbao <carlos.bilbao@amd.com> Originally-by: Michael Roth <michael.roth@amd.com> Signed-off-by: Peter Gonda <pgonda@google.com> Co-developed-by: Sean Christopherson <seanjc@google.com> Link: https://lore.kernel.org/r/20240223004258.3104051-9-seanjc@google.com Signed-off-by: Sean Christopherson <seanjc@google.com>
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