blob: b5bfa21d521cec579eb93c8566be30fbbd18f186 [file] [log] [blame]
* Process-global memory barriers
* Copyright (c) 2018 Red Hat, Inc.
* Author: Paolo Bonzini <>
/* Only block reordering at the compiler level in the performance-critical
* side. The slow side forces processor-level ordering on all other cores
* through a system call.
extern void smp_mb_global_init(void);
extern void smp_mb_global(void);
#define smp_mb_placeholder() barrier()
/* Keep it simple, execute a real memory barrier on both sides. */
static inline void smp_mb_global_init(void) {}
#define smp_mb_global() smp_mb()
#define smp_mb_placeholder() smp_mb()