https://bugzilla.kernel.org/show_bug.cgi?id=219787 --- Comment #18 from Ravi Bangoria (ravi.bangoria@xxxxxxx) --- (In reply to Ravi Bangoria from comment #16) > It seems, the CPU is preserving SW written DR6[BusLockDetected] while > generating the #DB when the CPL is 0 and DEBUGCTL[BusLockTrapEn] is set. My bad, the behavior is same for CPL 3 as well. Apparently, it's a correct behavior as documented in the AMD Architecture Programmer's Manual. I've posted a KUT patch to KVM mailing list. (More details in the patch). Please review. https://lore.kernel.org/r/20250224112601.6504-1-ravi.bangoria@xxxxxxx -- You may reply to this email to add a comment. You are receiving this mail because: You are watching the assignee of the bug.