[PATCH v2 0/2] KVM: selftests: Detect if KVM bugged the VM

[Sean Christopherson]

Teach selftests' ioctl() macros to detect and report when an ioctl()
unexpectedly fails because KVM has killed and/or bugged the VM.  Because
selftests does the right thing and tries to gracefully clean up VMs, a
bugged VM can generate confusing errors, e.g. when deleting memslots.

v2:
 - Drop the ARM patch (not worth the churn).
 - Drop macros for ioctls() that return file descriptors.  Looking at this
   with fresh eyes, I agree they do more harm than good. [Oliver]

v1: https://lore.kernel.org/all/20230804004226.1984505-1-seanjc@xxxxxxxxxx

Sean Christopherson (2):
  KVM: selftests: Drop the single-underscore ioctl() helpers
  KVM: selftests: Add logic to detect if ioctl() failed because VM was
    killed

 .../selftests/kvm/include/kvm_util_base.h     | 75 ++++++++++++-------
 tools/testing/selftests/kvm/lib/kvm_util.c    |  2 +-
 2 files changed, 51 insertions(+), 26 deletions(-)


base-commit: 45b890f7689eb0aba454fc5831d2d79763781677
-- 
2.42.0.869.gea05f2083d-goog