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. Signed-off-by: Cyrill Gorcunov <[email protected]> Acked-by: Ingo Molnar <[email protected]> --- tools/kvm/x86/include/kvm/barrier.h | 21 ++++++++++++++------- 1 file changed, 14 insertions(+), 7 deletions(-) Index: linux-2.6.git/tools/kvm/x86/include/kvm/barrier.h =================================================================== --- linux-2.6.git.orig/tools/kvm/x86/include/kvm/barrier.h +++ linux-2.6.git/tools/kvm/x86/include/kvm/barrier.h @@ -1,13 +1,20 @@ #ifndef _KVM_BARRIER_H_ #define _KVM_BARRIER_H_ -/* - * asm/system.h cannot be #included standalone on 32-bit x86 yet. - * - * Provide the dependencies here - we can drop these wrappers once - * the header is fixed upstream: - */ +#define barrier() asm volatile("": : :"memory") -#include <asm/barrier.h> +#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_ */ -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
