The first two patches try to fix two issues I found (I think) with the selftest. The 3rd patch is the test itself. Note, we need below patches to be applied too for the test to work: KVM: X86: Declare KVM_CAP_SET_GUEST_DEBUG properly KVM: selftests: Fix build for evmcs.h Please review, thanks. Peter Xu (3): 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/x86/kvm/vmx/vmx.c | 2 +- arch/x86/kvm/x86.c | 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 | 180 ++++++++++++++++++ 6 files changed, 194 insertions(+), 2 deletions(-) create mode 100644 tools/testing/selftests/kvm/x86_64/debug_regs.c -- 2.26.2