1 #ifndef INCLUDE_XEN_OPS_H 2 #define INCLUDE_XEN_OPS_H 3 4 #include <linux/percpu.h> 5 #include <linux/notifier.h> 6 #include <linux/efi.h> 7 #include <asm/xen/interface.h> 8 9 DECLARE_PER_CPU(struct vcpu_info *, xen_vcpu); 10 11 void xen_arch_pre_suspend(void); 12 void xen_arch_post_suspend(int suspend_cancelled); 13 14 void xen_timer_resume(void); 15 void xen_arch_resume(void); 16 17 void xen_resume_notifier_register(struct notifier_block *nb); 18 void xen_resume_notifier_unregister(struct notifier_block *nb); 19 20 int xen_setup_shutdown_event(void); 21 22 extern unsigned long *xen_contiguous_bitmap; 23 int xen_create_contiguous_region(phys_addr_t pstart, unsigned int order, 24 unsigned int address_bits, 25 dma_addr_t *dma_handle); 26 27 void xen_destroy_contiguous_region(phys_addr_t pstart, unsigned int order); 28 29 struct vm_area_struct; 30 int xen_remap_domain_mfn_range(struct vm_area_struct *vma, 31 unsigned long addr, 32 xen_pfn_t mfn, int nr, 33 pgprot_t prot, unsigned domid, 34 struct page **pages); 35 int xen_unmap_domain_mfn_range(struct vm_area_struct *vma, 36 int numpgs, struct page **pages); 37 38 bool xen_running_on_version_or_later(unsigned int major, unsigned int minor); 39 40 #ifdef CONFIG_XEN_EFI 41 extern efi_system_table_t *xen_efi_probe(void); 42 #else 43 static inline efi_system_table_t __init *xen_efi_probe(void) 44 { 45 return NULL; 46 } 47 #endif 48 49 #ifdef CONFIG_PREEMPT 50 51 static inline void xen_preemptible_hcall_begin(void) 52 { 53 } 54 55 static inline void xen_preemptible_hcall_end(void) 56 { 57 } 58 59 #else 60 61 DECLARE_PER_CPU(bool, xen_in_preemptible_hcall); 62 63 static inline void xen_preemptible_hcall_begin(void) 64 { 65 __this_cpu_write(xen_in_preemptible_hcall, true); 66 } 67 68 static inline void xen_preemptible_hcall_end(void) 69 { 70 __this_cpu_write(xen_in_preemptible_hcall, false); 71 } 72 73 #endif /* CONFIG_PREEMPT */ 74 75 #endif /* INCLUDE_XEN_OPS_H */ 76