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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S+fencewmbonceonce+poacquireonce.litmus (356B)

      1C S+fencewmbonceonce+poacquireonce
      2
      3(*
      4 * Result: Never
      5 *
      6 * Can a smp_wmb(), instead of a release, and an acquire order a prior
      7 * store against a subsequent store?
      8 *)
      9
     10{}
     11
     12P0(int *x, int *y)
     13{
     14	WRITE_ONCE(*x, 2);
     15	smp_wmb();
     16	WRITE_ONCE(*y, 1);
     17}
     18
     19P1(int *x, int *y)
     20{
     21	int r0;
     22
     23	r0 = smp_load_acquire(y);
     24	WRITE_ONCE(*x, 1);
     25}
     26
     27exists (x=2 /\ 1:r0=1)