mirror of
https://github.com/clearlinux/kvmtool.git
synced 2026-09-04 12:41:37 +00:00
Cyrill Gorcunov
dbb1237965
Otherwise I'm getting the following compile problem on my Fedora machine. The helper is rather taken from linux kernel. | [cyrill@moon kvm]$ make tags | x86/include/kvm/barrier.h:11:25: fatal error: asm/barrier.h: No such file or directory compilation terminated. Acked-by: Ingo Molnar <mingo@kernel.org> Signed-off-by: Cyrill Gorcunov <gorcunov@openvz.org> Signed-off-by: Pekka Enberg <penberg@kernel.org>
21 lines
465 B
C
21 lines
465 B
C
#ifndef _KVM_BARRIER_H_
|
|
#define _KVM_BARRIER_H_
|
|
|
|
#define barrier() asm volatile("": : :"memory")
|
|
|
|
#define mb() asm volatile ("mfence": : :"memory")
|
|
#define rmb() asm volatile ("lfence": : :"memory")
|
|
#define wmb() asm volatile ("sfence": : :"memory")
|
|
|
|
#ifdef CONFIG_SMP
|
|
#define smp_mb() mb()
|
|
#define smp_rmb() rmb()
|
|
#define smp_wmb() wmb()
|
|
#else
|
|
#define smp_mb() barrier()
|
|
#define smp_rmb() barrier()
|
|
#define smp_wmb() barrier()
|
|
#endif
|
|
|
|
#endif /* _KVM_BARRIER_H_ */
|