https://bugzilla.kernel.org/show_bug.cgi?id=211467 Sean Christopherson (seanjc@xxxxxxxxxx) changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |seanjc@xxxxxxxxxx --- Comment #2 from Sean Christopherson (seanjc@xxxxxxxxxx) --- LOL, this is awesome. Presumably you're also exposing an Intel CPU model to the guest, otherwise KVM would inject a #UD on SYSENTER instead of emulating. Anyways, hilarity aside, your patch looks correct as Intel CPUs unconditionally transition to 64-bit mode on SYSENTER from compatibility mode. Want to send a formal patch? If you're not set up to send a patch, I'd be happy to write a changelog if you want to provide a Signed-off-by. -- You may reply to this email to add a comment. You are receiving this mail because: You are watching the assignee of the bug.