Add a basic SEV smoke test. Unlike the intra-host migration tests, this one actually runs a small chunk of code in the guest. v8: - Undo the kvm.h uAPI breakage. - Take advantage of "struct vm_shape", introduced by the guest_memfd selftests, to simply tracking the SEV/SEV-ES subtypes. - Rename the test to "sev_smoke_test" instead of "sev_all_boot_test", as the "all" is rather nonsensical, and the test isn't booting anything in the traditional sense of the word. - Drop vm->protected and instead add an arch hook to query if the VM has protected memory. - Assert that the target memory region supports protected memory when allocating protected memory. - Allocate protected_phy_pages for memory regions if and only if the VM supports protected memory. - Rename kvm_host.h to kvm_util_arch.h, and move it to selftests/kvm where it belongs. - Fix up some SoB goofs. - Convert the intrahost SEV/SEV-ES migration tests to use common ioctl() wrappers. V7 * https://lore.kernel.org/all/20231218161146.3554657-1-pgonda@xxxxxxxxxx * See https://github.com/sean-jc/linux/tree/x86/sev_selftests_for_peter. * I kept is_pt_protected because without it the page tables are never readable. Its used for the elf loading in kvm_vm_elf_load(). V6 * Updated SEV VM create function based on Seanjc's feedback and new changes to VM creation functions. * Removed pte_me_mask based on feedback. * Fixed s_bit usage based on TDX * Fixed bugs and took Ackerly's code for enc_region setup code. V5 * Rebase onto seanjc@'s latest ucall pool series. * More review changes based on seanjc: ** use protected instead of encrypted outside of SEV specific files ** Swap memcrypt struct for kvm_vm_arch arch specific struct ** Make protected page table data agnostic of address bit stealing specifics of SEV ** Further clean up for SEV library to just vm_sev_create_one_vcpu() * Due to large changes moved more authorships from mroth@ to pgonda@. Gave originally-by tags to mroth@ as suggested by Seanjc for this. V4 * Rebase ontop of seanjc@'s latest Ucall Pool series: https://lore.kernel.org/linux-arm-kernel/20220825232522.3997340-8-seanjc@xxxxxxxxxx/ * Fix up review comments from seanjc * Switch authorship on 2 patches because of significant changes, added * Michael as suggested-by or originally-by. V3 * Addressed more of andrew.jones@ in ucall patches. * Fix build in non-x86 archs. V2 * Dropped RFC tag * Correctly separated Sean's ucall patches into 2 as originally intended. * Addressed andrew.jones@ in ucall patches. * Fixed ucall pool usage to work for other archs V1 * https://lore.kernel.org/all/20220715192956.1873315-1-pgonda@xxxxxxxxxx/ Ackerley Tng (1): KVM: selftests: Add a macro to iterate over a sparsebit range Michael Roth (2): KVM: selftests: Make sparsebit structs const where appropriate KVM: selftests: Add support for protected vm_vaddr_* allocations Peter Gonda (5): KVM: selftests: Add support for allocating/managing protected guest memory KVM: selftests: Explicitly ucall pool from shared memory KVM: selftests: Allow tagging protected memory in guest page tables KVM: selftests: Add library for creating and interacting with SEV guests KVM: selftests: Add a basic SEV smoke test Sean Christopherson (2): KVM: selftests: Extend VM creation's @shape to allow control of VM subtype KVM: selftests: Use the SEV library APIs in the intra-host migration test tools/testing/selftests/kvm/Makefile | 2 + .../kvm/include/aarch64/kvm_util_arch.h | 7 + .../selftests/kvm/include/kvm_util_base.h | 50 ++++++- .../kvm/include/riscv/kvm_util_arch.h | 7 + .../kvm/include/s390x/kvm_util_arch.h | 7 + .../testing/selftests/kvm/include/sparsebit.h | 56 +++++--- .../kvm/include/x86_64/kvm_util_arch.h | 23 ++++ .../selftests/kvm/include/x86_64/processor.h | 8 ++ .../selftests/kvm/include/x86_64/sev.h | 110 +++++++++++++++ tools/testing/selftests/kvm/lib/kvm_util.c | 67 +++++++-- tools/testing/selftests/kvm/lib/sparsebit.c | 48 +++---- .../testing/selftests/kvm/lib/ucall_common.c | 3 +- .../selftests/kvm/lib/x86_64/processor.c | 32 ++++- tools/testing/selftests/kvm/lib/x86_64/sev.c | 128 ++++++++++++++++++ .../selftests/kvm/x86_64/sev_migrate_tests.c | 67 +++------ .../selftests/kvm/x86_64/sev_smoke_test.c | 58 ++++++++ 16 files changed, 570 insertions(+), 103 deletions(-) create mode 100644 tools/testing/selftests/kvm/include/aarch64/kvm_util_arch.h create mode 100644 tools/testing/selftests/kvm/include/riscv/kvm_util_arch.h create mode 100644 tools/testing/selftests/kvm/include/s390x/kvm_util_arch.h create mode 100644 tools/testing/selftests/kvm/include/x86_64/kvm_util_arch.h create mode 100644 tools/testing/selftests/kvm/include/x86_64/sev.h create mode 100644 tools/testing/selftests/kvm/lib/x86_64/sev.c create mode 100644 tools/testing/selftests/kvm/x86_64/sev_smoke_test.c base-commit: 60eedcfceda9db46f1b333e5e1aa9359793f04fb -- 2.43.0.594.gd9cf4e227d-goog
