mirror of https://gitee.com/openkylin/linux.git
76 lines
1.8 KiB
C
76 lines
1.8 KiB
C
#ifndef INCLUDE_XEN_OPS_H
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#define INCLUDE_XEN_OPS_H
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#include <linux/percpu.h>
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#include <linux/notifier.h>
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#include <linux/efi.h>
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#include <asm/xen/interface.h>
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DECLARE_PER_CPU(struct vcpu_info *, xen_vcpu);
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void xen_arch_pre_suspend(void);
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void xen_arch_post_suspend(int suspend_cancelled);
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void xen_timer_resume(void);
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void xen_arch_resume(void);
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void xen_resume_notifier_register(struct notifier_block *nb);
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void xen_resume_notifier_unregister(struct notifier_block *nb);
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int xen_setup_shutdown_event(void);
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extern unsigned long *xen_contiguous_bitmap;
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int xen_create_contiguous_region(phys_addr_t pstart, unsigned int order,
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unsigned int address_bits,
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dma_addr_t *dma_handle);
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void xen_destroy_contiguous_region(phys_addr_t pstart, unsigned int order);
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struct vm_area_struct;
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int xen_remap_domain_mfn_range(struct vm_area_struct *vma,
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unsigned long addr,
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xen_pfn_t mfn, int nr,
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pgprot_t prot, unsigned domid,
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struct page **pages);
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int xen_unmap_domain_mfn_range(struct vm_area_struct *vma,
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int numpgs, struct page **pages);
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bool xen_running_on_version_or_later(unsigned int major, unsigned int minor);
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#ifdef CONFIG_XEN_EFI
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extern efi_system_table_t *xen_efi_probe(void);
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#else
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static inline efi_system_table_t __init *xen_efi_probe(void)
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{
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return NULL;
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}
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#endif
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#ifdef CONFIG_PREEMPT
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static inline void xen_preemptible_hcall_begin(void)
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{
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}
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static inline void xen_preemptible_hcall_end(void)
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{
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}
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#else
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DECLARE_PER_CPU(bool, xen_in_preemptible_hcall);
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static inline void xen_preemptible_hcall_begin(void)
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{
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__this_cpu_write(xen_in_preemptible_hcall, true);
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}
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static inline void xen_preemptible_hcall_end(void)
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{
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__this_cpu_write(xen_in_preemptible_hcall, false);
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}
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#endif /* CONFIG_PREEMPT */
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#endif /* INCLUDE_XEN_OPS_H */
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