[RFC PATCH v5 00/29] TDX KVM selftests

[Sagi Shahar <sagis@google.com>]

Hello,

This is v4 of the patch series for TDX selftests.

It has been updated for Intel’s v17 of the TDX host patches which was
proposed here:
https://lore.kernel.org/all/cover.1699368322.git.isaku.yamahata@intel.com/

The tree can be found at:
https://github.com/googleprodkernel/linux-cc/tree/tdx-selftests-rfc-v5

Changes from RFC v4:

Added patch to propagate KVM_EXIT_MEMORY_FAULT to userspace.

Minor tweaks to align the tests to the new TDX 1.5 spec such as changes
in the expected values in TDG.VP.INFO.

In RFCv5, TDX selftest code is organized into:

+ headers in tools/testing/selftests/kvm/include/x86_64/tdx/
+ common code in tools/testing/selftests/kvm/lib/x86_64/tdx/
+ selftests in tools/testing/selftests/kvm/x86_64/tdx_*

Dependencies

+ Peter’s patches, which provide functions for the host to allocate
  and track protected memory in the guest.
  https://lore.kernel.org/all/20230110175057.715453-1-pgonda@google.com/

Further work for this patch series/TODOs

+ Sean’s comments for the non-confidential UPM selftests patch series
  at https://lore.kernel.org/lkml/Y8dC8WDwEmYixJqt@google.com/T/#u apply
  here as well
+ Add ucall support for TDX selftests

I would also like to acknowledge the following people, who helped
review or test patches in previous versions:

+ Sean Christopherson <seanjc@google.com>
+ Zhenzhong Duan <zhenzhong.duan@intel.com>
+ Peter Gonda <pgonda@google.com>
+ Andrew Jones <drjones@redhat.com>
+ Maxim Levitsky <mlevitsk@redhat.com>
+ Xiaoyao Li <xiaoyao.li@intel.com>
+ David Matlack <dmatlack@google.com>
+ Marc Orr <marcorr@google.com>
+ Isaku Yamahata <isaku.yamahata@gmail.com>
+ Maciej S. Szmigiero <maciej.szmigiero@oracle.com>

Links to earlier patch series

+ RFC v1: https://lore.kernel.org/lkml/20210726183816.1343022-1-erdemaktas@google.com/T/#u
+ RFC v2: https://lore.kernel.org/lkml/20220830222000.709028-1-sagis@google.com/T/#u
+ RFC v3: https://lore.kernel.org/lkml/20230121001542.2472357-1-ackerleytng@google.com/T/#u
+ RFC v4: https://lore.kernel.org/lkml/20230725220132.2310657-1-afranji@google.com/

*** BLURB HERE ***

Ackerley Tng (12):
  KVM: selftests: Add function to allow one-to-one GVA to GPA mappings
  KVM: selftests: Expose function that sets up sregs based on VM's mode
  KVM: selftests: Store initial stack address in struct kvm_vcpu
  KVM: selftests: Refactor steps in vCPU descriptor table initialization
  KVM: selftests: TDX: Use KVM_TDX_CAPABILITIES to validate TDs'
    attribute configuration
  KVM: selftests: TDX: Update load_td_memory_region for VM memory backed
    by guest memfd
  KVM: selftests: Add functions to allow mapping as shared
  KVM: selftests: Expose _vm_vaddr_alloc
  KVM: selftests: TDX: Add support for TDG.MEM.PAGE.ACCEPT
  KVM: selftests: TDX: Add support for TDG.VP.VEINFO.GET
  KVM: selftests: TDX: Add TDX UPM selftest
  KVM: selftests: TDX: Add TDX UPM selftests for implicit conversion

Erdem Aktas (3):
  KVM: selftests: Add helper functions to create TDX VMs
  KVM: selftests: TDX: Add TDX lifecycle test
  KVM: selftests: TDX: Adding test case for TDX port IO

Roger Wang (1):
  KVM: selftests: TDX: Add TDG.VP.INFO test

Ryan Afranji (2):
  KVM: selftests: TDX: Verify the behavior when host consumes a TD
    private memory
  KVM: selftests: TDX: Add shared memory test

Sagi Shahar (11):
  KVM: selftests: TDX: Add report_fatal_error test
  KVM: selftests: TDX: Add basic TDX CPUID test
  KVM: selftests: TDX: Add basic get_td_vmcall_info test
  KVM: selftests: TDX: Add TDX IO writes test
  KVM: selftests: TDX: Add TDX IO reads test
  KVM: selftests: TDX: Add TDX MSR read/write tests
  KVM: selftests: TDX: Add TDX HLT exit test
  KVM: selftests: TDX: Add TDX MMIO reads test
  KVM: selftests: TDX: Add TDX MMIO writes test
  KVM: selftests: TDX: Add TDX CPUID TDVMCALL test
  KVM: selftests: Propagate KVM_EXIT_MEMORY_FAULT to userspace

 tools/testing/selftests/kvm/Makefile          |    8 +
 .../selftests/kvm/include/kvm_util_base.h     |   30 +
 .../selftests/kvm/include/x86_64/processor.h  |    4 +
 .../kvm/include/x86_64/tdx/td_boot.h          |   82 +
 .../kvm/include/x86_64/tdx/td_boot_asm.h      |   16 +
 .../selftests/kvm/include/x86_64/tdx/tdcall.h |   59 +
 .../selftests/kvm/include/x86_64/tdx/tdx.h    |   65 +
 .../kvm/include/x86_64/tdx/tdx_util.h         |   19 +
 .../kvm/include/x86_64/tdx/test_util.h        |  164 ++
 tools/testing/selftests/kvm/lib/kvm_util.c    |  101 +-
 .../selftests/kvm/lib/x86_64/processor.c      |   77 +-
 .../selftests/kvm/lib/x86_64/tdx/td_boot.S    |  101 ++
 .../selftests/kvm/lib/x86_64/tdx/tdcall.S     |  158 ++
 .../selftests/kvm/lib/x86_64/tdx/tdx.c        |  262 ++++
 .../selftests/kvm/lib/x86_64/tdx/tdx_util.c   |  558 +++++++
 .../selftests/kvm/lib/x86_64/tdx/test_util.c  |  101 ++
 .../kvm/x86_64/tdx_shared_mem_test.c          |  135 ++
 .../selftests/kvm/x86_64/tdx_upm_test.c       |  469 ++++++
 .../selftests/kvm/x86_64/tdx_vm_tests.c       | 1319 +++++++++++++++++
 19 files changed, 3693 insertions(+), 35 deletions(-)
 create mode 100644 tools/testing/selftests/kvm/include/x86_64/tdx/td_boot.h
 create mode 100644 tools/testing/selftests/kvm/include/x86_64/tdx/td_boot_asm.h
 create mode 100644 tools/testing/selftests/kvm/include/x86_64/tdx/tdcall.h
 create mode 100644 tools/testing/selftests/kvm/include/x86_64/tdx/tdx.h
 create mode 100644 tools/testing/selftests/kvm/include/x86_64/tdx/tdx_util.h
 create mode 100644 tools/testing/selftests/kvm/include/x86_64/tdx/test_util.h
 create mode 100644 tools/testing/selftests/kvm/lib/x86_64/tdx/td_boot.S
 create mode 100644 tools/testing/selftests/kvm/lib/x86_64/tdx/tdcall.S
 create mode 100644 tools/testing/selftests/kvm/lib/x86_64/tdx/tdx.c
 create mode 100644 tools/testing/selftests/kvm/lib/x86_64/tdx/tdx_util.c
 create mode 100644 tools/testing/selftests/kvm/lib/x86_64/tdx/test_util.c
 create mode 100644 tools/testing/selftests/kvm/x86_64/tdx_shared_mem_test.c
 create mode 100644 tools/testing/selftests/kvm/x86_64/tdx_upm_test.c
 create mode 100644 tools/testing/selftests/kvm/x86_64/tdx_vm_tests.c

-- 
2.43.0.472.g3155946c3a-goog