| Message ID | 20241114234104.128532-1-pratikrajesh.sampat@amd.com (mailing list archive) |
|---|---|
| Headers | show |
| Series | Basic SEV-SNP Selftests | expand |
On 11/15/2024 5:10 AM, Pratik R. Sampat wrote: > This patch series extends the sev_init2 and the sev_smoke test to > exercise the SEV-SNP VM launch workflow. > > Primarily, it introduces the architectural defines, its support in the SEV > library and extends the tests to interact with the SEV-SNP ioctl() > wrappers. > > Patch 1 - Do not advertize SNP on incompatible firmware > Patch 2 - SNP test for KVM_SEV_INIT2 > Patch 3 - Add VMGEXIT helper > Patch 4 - Introduce SEV+ VM type check > Patch 5 - SNP iotcl() plumbing for the SEV library > Patch 6 - Force set GUEST_MEMFD for SNP > Patch 7 - Cleanups of smoke test - Decouple policy from type > Patch 8 - SNP smoke test > > v4: > 1. Remove SNP FW API version check in the test and ensure the KVM > capability advertizes the presence of the feature. Retain the minimum > version definitions to exercise these API versions in the smoke test. > 2. Retained only the SNP smoke test and SNP_INIT2 test > 3. The SNP architectural defined merged with SNP_INIT2 test patch > 4. SNP shutdown merged with SNP smoke test patch > 5. Add SEV VM type check to abstract comparisons and reduce clutter > 6. Define a SNP default policy which sets bits based on the presence of > SMT > 7. Decouple privatization and encryption for it to be SNP agnostic > 8. Assert for only positive tests using vm_ioctl() > 9. Dropped tested-by tags > Tested-by: Srikanth Aithal <sraithal@amd.com> > In summary - based on comments from Sean, I have primarily reduced the > scope of this patch series to focus on breaking down the SNP smoke test > patch (v3 - patch2) to first introduce SEV-SNP support and use this > interface to extend the sev_init2 and the sev_smoke test. > > The rest of the v3 patchset that introduces ioctl, pre fault, fallocate > and negative tests, will be re-worked and re-introduced subsequently in > future patch series post addressing the issues discussed. > > v3: > https://lore.kernel.org/kvm/20240905124107.6954-1-pratikrajesh.sampat@amd.com/ > 1. Remove the assignments for the prefault and fallocate test type > enums. > 2. Fix error message for sev launch measure and finish. > 3. Collect tested-by tags [Peter, Srikanth] > > Any feedback/review is highly appreciated! > > Pratik R. Sampat (8): > KVM: SEV: Disable SEV-SNP on FW validation failure > KVM: selftests: SEV-SNP test for KVM_SEV_INIT2 > KVM: selftests: Add VMGEXIT helper > KVM: selftests: Introduce SEV VM type check > KVM: selftests: Add library support for interacting with SNP > KVM: selftests: Force GUEST_MEMFD flag for SNP VM type > KVM: selftests: Abstractions for SEV to decouple policy from type > KVM: selftests: Add a basic SEV-SNP smoke test > > arch/x86/kvm/svm/sev.c | 4 +- > drivers/crypto/ccp/sev-dev.c | 6 ++ > include/linux/psp-sev.h | 3 + > .../selftests/kvm/include/x86_64/processor.h | 1 + > .../selftests/kvm/include/x86_64/sev.h | 55 ++++++++++- > tools/testing/selftests/kvm/lib/kvm_util.c | 7 +- > .../selftests/kvm/lib/x86_64/processor.c | 4 +- > tools/testing/selftests/kvm/lib/x86_64/sev.c | 98 ++++++++++++++++++- > .../selftests/kvm/x86_64/sev_init2_tests.c | 13 +++ > .../selftests/kvm/x86_64/sev_smoke_test.c | 96 ++++++++++++++---- > 10 files changed, 258 insertions(+), 29 deletions(-) >