diff options
Diffstat (limited to 'xen/include/xen/smp.h')
| -rw-r--r-- | xen/include/xen/smp.h | 55 |
1 files changed, 7 insertions, 48 deletions
diff --git a/xen/include/xen/smp.h b/xen/include/xen/smp.h index c02ecd4dc3..6ab913a430 100644 --- a/xen/include/xen/smp.h +++ b/xen/include/xen/smp.h @@ -1,23 +1,10 @@ -#ifndef __LINUX_SMP_H -#define __LINUX_SMP_H - -/* - * Generic SMP support - * Alan Cox. <alan@redhat.com> - */ +#ifndef __XEN_SMP_H__ +#define __XEN_SMP_H__ #include <xen/config.h> - -#ifdef CONFIG_SMP - #include <asm/smp.h> /* - * main cross-CPU interfaces, handles INIT, TLB flush, STOP, etc. - * (defined in asm header): - */ - -/* * stops all CPUs but the current one: */ extern void smp_send_stop(void); @@ -66,38 +53,6 @@ extern int on_selected_cpus( */ void smp_prepare_boot_cpu(void); -#else - -/* - * These macros fold the SMP functionality into a single CPU system - */ - -#define smp_send_event_check_mask(m) ((void)0) -#define smp_send_event_check_cpu(p) ((void)0) -#define raw_smp_processor_id() 0 -#define hard_smp_processor_id() 0 -#define smp_call_function(func,info,retry,wait) ({ do {} while (0); 0; }) -#define num_booting_cpus() 1 -#define smp_prepare_boot_cpu() do {} while (0) - -static inline int on_selected_cpus( - cpumask_t selected, - void (*func) (void *info), - void *info, - int retry, - int wait) -{ - if ( cpu_isset(0, selected) ) - { - local_irq_disable(); - func(info); - local_irq_enable(); - } - return 0; -} - -#endif - /* * Call a function on all processors */ @@ -112,4 +67,8 @@ static inline int on_each_cpu( #define smp_processor_id() raw_smp_processor_id() -#endif +/* No Xen contexts can be preempted by CPU hotplug. */ +#define lock_cpu_hotplug() ((void)0) +#define unlock_cpu_hotplug() ((void)0) + +#endif /* __XEN_SMP_H__ */ |