On 03/24/2016 08:11 AM, Paolo Bonzini wrote:
There is also a case where a TB jumps to itself; it then appears twice in the list with different values in the low bits, such as this:tb->jmp_list_first = tb | 0; .--------------------' | | .-------' tb->jmp_list_next[0] = tb | 2;
Of course, it begs the question of why TB would be in its own list, even if it does jump to itself. We only need the points-to list in order to invalidate a TB and unlink it. But if TB is being invalidated, we don't need to reset the jump within TB itself.
r~
