Add single-step #DB + STI/MOVSS blocking regression tests for a related KVM bug[*]. Before adding the test (last patch), overhaul asm/debugreg.h and clean up x86's "debug" test. [*] https://lore.kernel.org/all/20220120000624.655815-1-seanjc@xxxxxxxxxx Sean Christopherson (7): bitops: Include stdbool.h and stddef.h as necessary x86/debug: Add framework for single-step #DB tests x86/debug: Test OUT instead of RDMSR for single-step #DB emulation test x86/debug: Run single-step #DB tests in usermode (and kernel mode) x86: Overhaul definitions for DR6 and DR7 bits x86/debug: Add single-step #DB + STI/MOVSS blocking tests x86/debug: Explicitly write DR6 in the H/W watchpoint + DR6.BS sub-test lib/bitops.h | 3 + lib/x86/asm/debugreg.h | 125 ++++++-------- x86/debug.c | 384 ++++++++++++++++++++++++++++++++++------- x86/emulator.c | 14 +- x86/vmx_tests.c | 27 +-- 5 files changed, 405 insertions(+), 148 deletions(-) base-commit: 92a6c9b95ab10eba66bff3ff44476ab0c015b276 -- 2.34.1.703.g22d0c6ccf7-goog
