On 06/10/21 01:44, Michael Roth wrote:
These patches and are also available at:
https://github.com/mdroth/linux/commits/sev-selftests-rfc1
They are based on top of v5 of Brijesh's SEV-SNP hypervisor patches[1]
to allow for SEV-SNP testing and provide some context for the overall
design, but the SEV/SEV-ES patches can be carved out into a separate
series as needed.
== OVERVIEW ==
This series introduces a set of memory encryption-related parameter/hooks
in the core kselftest library, then uses the hooks to implement a small
library for creating/managing SEV, SEV-ES, SEV-SNP guests. This library
is then used to implement a basic boot/memory test that's run for all
variants of SEV/SEV-ES/SEV-SNP guest types, as well as a set of SEV-SNP
tests that cover various permutations of pvalidate/page-state changes.
- Patches 1-7 implement SEV boot tests and should run against existing
kernels
- Patch 8 is a KVM changes that's required to allow SEV-ES/SEV-SNP
guests to boot with an externally generated page table, and is a
host kernel prequisite for the remaining patches in the series.
- Patches 9-12 extend the boot tests to cover SEV-ES
- Patches 13-16 extend the boot testst to cover SEV-SNP, and introduce
an additional test for page-state changes.
Hi Mike,
this SEV/SEV-ES testing (both your series and kvm-unit-tests) is good
stuff. :) If you fix up patches 1-12, I will commit them pretty much
straight away. The only thing that possibly needs some thought is the
integration with ucall.
Thanks,
Paolo
Any review/comments are greatly appreciated!
[1] https://lore.kernel.org/linux-mm/20210820155918.7518-1-brijesh.singh@xxxxxxx/
----------------------------------------------------------------
Michael Roth (16):
KVM: selftests: move vm_phy_pages_alloc() earlier in file
KVM: selftests: add hooks for managing encrypted guest memory
KVM: selftests: handle encryption bits in page tables
KVM: selftests: set CPUID before setting sregs in vcpu creation
KVM: selftests: add support for encrypted vm_vaddr_* allocations
KVM: selftests: add library for creating/interacting with SEV guests
KVM: selftests: add SEV boot tests
KVM: SVM: include CR3 in initial VMSA state for SEV-ES guests
KVM: selftests: account for error code in #VC exception frame
KVM: selftests: add support for creating SEV-ES guests
KVM: selftests: add library for handling SEV-ES-related exits
KVM: selftests: add SEV-ES boot tests
KVM: selftests: add support for creating SEV-SNP guests
KVM: selftests: add helpers for SEV-SNP-related instructions/exits
KVM: selftests: add SEV-SNP boot tests
KVM: selftests: add SEV-SNP tests for page-state changes
arch/x86/include/asm/kvm-x86-ops.h | 1 +
arch/x86/include/asm/kvm_host.h | 1 +
arch/x86/kvm/svm/svm.c | 22 ++
arch/x86/kvm/vmx/vmx.c | 8 +
arch/x86/kvm/x86.c | 3 +-
tools/testing/selftests/kvm/.gitignore | 2 +
tools/testing/selftests/kvm/Makefile | 3 +
tools/testing/selftests/kvm/include/kvm_util.h | 8 +
tools/testing/selftests/kvm/include/x86_64/sev.h | 70 ++++
.../selftests/kvm/include/x86_64/sev_exitlib.h | 20 ++
tools/testing/selftests/kvm/include/x86_64/svm.h | 35 ++
.../selftests/kvm/include/x86_64/svm_util.h | 2 +
tools/testing/selftests/kvm/lib/kvm_util.c | 249 +++++++++-----
.../testing/selftests/kvm/lib/kvm_util_internal.h | 10 +
tools/testing/selftests/kvm/lib/x86_64/handlers.S | 4 +-
tools/testing/selftests/kvm/lib/x86_64/processor.c | 30 +-
tools/testing/selftests/kvm/lib/x86_64/sev.c | 381 +++++++++++++++++++++
.../testing/selftests/kvm/lib/x86_64/sev_exitlib.c | 326 ++++++++++++++++++
.../selftests/kvm/x86_64/sev_all_boot_test.c | 367 ++++++++++++++++++++
.../selftests/kvm/x86_64/sev_snp_psc_test.c | 378 ++++++++++++++++++++
20 files changed, 1820 insertions(+), 100 deletions(-)
create mode 100644 tools/testing/selftests/kvm/include/x86_64/sev.h
create mode 100644 tools/testing/selftests/kvm/include/x86_64/sev_exitlib.h
create mode 100644 tools/testing/selftests/kvm/lib/x86_64/sev.c
create mode 100644 tools/testing/selftests/kvm/lib/x86_64/sev_exitlib.c
create mode 100644 tools/testing/selftests/kvm/x86_64/sev_all_boot_test.c
create mode 100644 tools/testing/selftests/kvm/x86_64/sev_snp_psc_test.c
