lkml.org 
[lkml]   [2021]   [Dec]   [16]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
From
Subject[PATCH v2 00/13] KVM: selftests: Add tests for SEV and SEV-ES guests
Date
These patches and are also available at:

https://github.com/mdroth/linux/commits/sev-selftests-v2

They are based on top of the recent RFC:

"KVM: selftests: Add support for test-selectable ucall implementations"
https://lore.kernel.org/all/20211210164620.11636-1-michael.roth@amd.com/T/

https://github.com/mdroth/linux/commits/sev-selftests-ucall-rfc1

which provides a new ucall implementation that this series relies on.
Those patches were in turn based on kvm/next as of 2021-12-10.

== 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, and (eventually) SEV-SNP guests.
This library is then used to implement a basic boot/memory test that's run
for variants of SEV/SEV-ES guests.

- Patches 1-8 implement SEV boot tests and should run against existing
kernels
- Patch 9 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 10-13 extend the boot tests to cover SEV-ES

Any review/comments are greatly appreciated!

v2:
- rebased on ucall_ops patchset (which is based on kvm/next 2021-12-10)
- remove SEV-SNP support for now
- provide encryption bitmap as const* to original rather than as a copy
(Mingwei, Paolo)
- drop SEV-specific synchronization helpers in favor of ucall_ops_halt (Paolo)
- don't pass around addresses with c-bit included, add them as-needed via
addr_gpa2raw() (e.g. when adding PTEs, or initializing initial
cr3/vm->pgd) (Paolo)
- rename lib/sev.c functions for better consistency (Krish)
- move more test setup code out of main test function and into
setup_test_common() (Krish)
- suppress compiler warnings due to -Waddress-of-packed-member like kernel
does
- don't require SNP support in minimum firmware version detection (Marc)
- allow SEV device path to be configured via make SEV_PATH= (Marc)

----------------------------------------------------------------
Michael Roth (13):
KVM: selftests: move vm_phy_pages_alloc() earlier in file
KVM: selftests: sparsebit: add const where appropriate
KVM: selftests: add hooks for managing encrypted guest memory
KVM: selftests: handle encryption bits in page tables
KVM: selftests: add support for encrypted vm_vaddr_* allocations
KVM: selftests: ensure ucall_shared_alloc() allocates shared memory
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

arch/x86/include/asm/kvm-x86-ops.h | 1 +
arch/x86/include/asm/kvm_host.h | 1 +
arch/x86/kvm/svm/svm.c | 19 ++
arch/x86/kvm/vmx/vmx.c | 6 +
arch/x86/kvm/x86.c | 1 +
tools/testing/selftests/kvm/.gitignore | 1 +
tools/testing/selftests/kvm/Makefile | 10 +-
.../testing/selftests/kvm/include/kvm_util_base.h | 10 +
tools/testing/selftests/kvm/include/sparsebit.h | 36 +--
tools/testing/selftests/kvm/include/x86_64/sev.h | 44 +++
.../selftests/kvm/include/x86_64/sev_exitlib.h | 14 +
tools/testing/selftests/kvm/include/x86_64/svm.h | 35 +++
.../selftests/kvm/include/x86_64/svm_util.h | 1 +
tools/testing/selftests/kvm/lib/kvm_util.c | 270 ++++++++++++------
.../testing/selftests/kvm/lib/kvm_util_internal.h | 10 +
tools/testing/selftests/kvm/lib/sparsebit.c | 48 ++--
tools/testing/selftests/kvm/lib/ucall_common.c | 4 +-
tools/testing/selftests/kvm/lib/x86_64/handlers.S | 4 +-
tools/testing/selftests/kvm/lib/x86_64/processor.c | 16 +-
tools/testing/selftests/kvm/lib/x86_64/sev.c | 252 ++++++++++++++++
.../testing/selftests/kvm/lib/x86_64/sev_exitlib.c | 249 ++++++++++++++++
.../selftests/kvm/x86_64/sev_all_boot_test.c | 316 +++++++++++++++++++++
22 files changed, 1215 insertions(+), 133 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


\
 
 \ /
  Last update: 2021-12-16 18:16    [W:1.619 / U:0.076 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site