cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
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MP+pooncerelease+poacquireonce.litmus (464B)

      1C MP+pooncerelease+poacquireonce
      2
      3(*
      4 * Result: Never
      5 *
      6 * This litmus test demonstrates that smp_store_release() and
      7 * smp_load_acquire() provide sufficient ordering for the message-passing
      8 * pattern.
      9 *)
     10
     11{}
     12
     13P0(int *buf, int *flag) // Producer
     14{
     15	WRITE_ONCE(*buf, 1);
     16	smp_store_release(flag, 1);
     17}
     18
     19P1(int *buf, int *flag) // Consumer
     20{
     21	int r0;
     22	int r1;
     23
     24	r0 = smp_load_acquire(flag);
     25	r1 = READ_ONCE(*buf);
     26}
     27
     28exists (1:r0=1 /\ 1:r1=0) (* Bad outcome. *)