[0/9] KVM_SET_GUEST_DEBUG tests and fixes, DR accessors cleanups

Message

Paolo Bonzini May 6, 2020, 11:10 a.m. UTC

I am posting all the pending patches as a full series because I found
another issue on AMD, which is easily fixed with the last patch but has
dependencies on the patches to keep DR6 synchronized with vcpu->arch.dr6.

Paolo Bonzini (5):
  KVM: x86: fix DR6 delivery for various cases of #DB injection
  KVM: SVM: keep DR6 synchronized with vcpu->arch.dr6
  KVM: x86: simplify dr6 accessors in kvm_x86_ops
  KVM: x86, SVM: do not clobber guest DR6 on KVM_EXIT_DEBUG
  KVM: VMX: pass correct DR6 for GD userspace exit

Peter Xu (4):
  KVM: X86: Declare KVM_CAP_SET_GUEST_DEBUG properly
  KVM: X86: Set RTM for DB_VECTOR too for KVM_EXIT_DEBUG
  KVM: X86: Fix single-step with KVM_SET_GUEST_DEBUG
  KVM: selftests: Add KVM_SET_GUEST_DEBUG test

 arch/powerpc/kvm/powerpc.c                    |   1 +
 arch/s390/kvm/kvm-s390.c                      |   1 +
 arch/x86/include/asm/kvm_host.h               |   2 +-
 arch/x86/kvm/svm/svm.c                        |  11 +-
 arch/x86/kvm/vmx/vmx.c                        |  23 +-
 arch/x86/kvm/x86.c                            |  28 +--
 arch/x86/kvm/x86.h                            |   2 +
 tools/testing/selftests/kvm/Makefile          |   1 +
 .../testing/selftests/kvm/include/kvm_util.h  |   2 +
 tools/testing/selftests/kvm/lib/kvm_util.c    |   9 +
 .../testing/selftests/kvm/x86_64/debug_regs.c | 202 ++++++++++++++++++
 11 files changed, 243 insertions(+), 39 deletions(-)
 create mode 100644 tools/testing/selftests/kvm/x86_64/debug_regs.c