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Release 4.15 include/xen/xen-ops.h

Directory: include/xen
/* SPDX-License-Identifier: GPL-2.0 */
#ifndef INCLUDE_XEN_OPS_H

#define INCLUDE_XEN_OPS_H

#include <linux/percpu.h>
#include <linux/notifier.h>
#include <linux/efi.h>
#include <asm/xen/interface.h>
#include <xen/interface/vcpu.h>

DECLARE_PER_CPU(struct vcpu_info *, xen_vcpu);

DECLARE_PER_CPU(uint32_t, xen_vcpu_id);

static inline uint32_t xen_vcpu_nr(int cpu) { return per_cpu(xen_vcpu_id, cpu); }

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Vitaly Kuznetsov18100.00%2100.00%
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#define XEN_VCPU_ID_INVALID U32_MAX void xen_arch_pre_suspend(void); void xen_arch_post_suspend(int suspend_cancelled); void xen_timer_resume(void); void xen_arch_resume(void); void xen_arch_suspend(void); void xen_reboot(int reason); void xen_resume_notifier_register(struct notifier_block *nb); void xen_resume_notifier_unregister(struct notifier_block *nb); bool xen_vcpu_stolen(int vcpu); void xen_setup_runstate_info(int cpu); void xen_time_setup_guest(void); void xen_manage_runstate_time(int action); void xen_get_runstate_snapshot(struct vcpu_runstate_info *res); u64 xen_steal_clock(int cpu); int xen_setup_shutdown_event(void); extern unsigned long *xen_contiguous_bitmap; #ifdef CONFIG_XEN_PV int xen_create_contiguous_region(phys_addr_t pstart, unsigned int order, unsigned int address_bits, dma_addr_t *dma_handle); void xen_destroy_contiguous_region(phys_addr_t pstart, unsigned int order); #else
static inline int xen_create_contiguous_region(phys_addr_t pstart, unsigned int order, unsigned int address_bits, dma_addr_t *dma_handle) { return 0; }

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Vitaly Kuznetsov25100.00%1100.00%
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static inline void xen_destroy_contiguous_region(phys_addr_t pstart, unsigned int order) { }

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Vitaly Kuznetsov13100.00%1100.00%
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#endif struct vm_area_struct; /* * xen_remap_domain_gfn_array() - map an array of foreign frames * @vma: VMA to map the pages into * @addr: Address at which to map the pages * @gfn: Array of GFNs to map * @nr: Number entries in the GFN array * @err_ptr: Returns per-GFN error status. * @prot: page protection mask * @domid: Domain owning the pages * @pages: Array of pages if this domain has an auto-translated physmap * * @gfn and @err_ptr may point to the same buffer, the GFNs will be * overwritten by the error codes after they are mapped. * * Returns the number of successfully mapped frames, or a -ve error * code. */ int xen_remap_domain_gfn_array(struct vm_area_struct *vma, unsigned long addr, xen_pfn_t *gfn, int nr, int *err_ptr, pgprot_t prot, unsigned domid, struct page **pages); /* xen_remap_domain_gfn_range() - map a range of foreign frames * @vma: VMA to map the pages into * @addr: Address at which to map the pages * @gfn: First GFN to map. * @nr: Number frames to map * @prot: page protection mask * @domid: Domain owning the pages * @pages: Array of pages if this domain has an auto-translated physmap * * Returns the number of successfully mapped frames, or a -ve error * code. */ int xen_remap_domain_gfn_range(struct vm_area_struct *vma, unsigned long addr, xen_pfn_t gfn, int nr, pgprot_t prot, unsigned domid, struct page **pages); int xen_unmap_domain_gfn_range(struct vm_area_struct *vma, int numpgs, struct page **pages); #ifdef CONFIG_XEN_AUTO_XLATE int xen_xlate_remap_gfn_array(struct vm_area_struct *vma, unsigned long addr, xen_pfn_t *gfn, int nr, int *err_ptr, pgprot_t prot, unsigned domid, struct page **pages); int xen_xlate_unmap_gfn_range(struct vm_area_struct *vma, int nr, struct page **pages); #else /* * These two functions are called from arch/x86/xen/mmu.c and so stubs * are needed for a configuration not specifying CONFIG_XEN_AUTO_XLATE. */
static inline int xen_xlate_remap_gfn_array(struct vm_area_struct *vma, unsigned long addr, xen_pfn_t *gfn, int nr, int *err_ptr, pgprot_t prot, unsigned int domid, struct page **pages) { return -EOPNOTSUPP; }

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Paul Durrant44100.00%1100.00%
Total44100.00%1100.00%


static inline int xen_xlate_unmap_gfn_range(struct vm_area_struct *vma, int nr, struct page **pages) { return -EOPNOTSUPP; }

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Paul Durrant25100.00%1100.00%
Total25100.00%1100.00%

#endif int xen_xlate_map_ballooned_pages(xen_pfn_t **pfns, void **vaddr, unsigned long nr_grant_frames); bool xen_running_on_version_or_later(unsigned int major, unsigned int minor); efi_status_t xen_efi_get_time(efi_time_t *tm, efi_time_cap_t *tc); efi_status_t xen_efi_set_time(efi_time_t *tm); efi_status_t xen_efi_get_wakeup_time(efi_bool_t *enabled, efi_bool_t *pending, efi_time_t *tm); efi_status_t xen_efi_set_wakeup_time(efi_bool_t enabled, efi_time_t *tm); efi_status_t xen_efi_get_variable(efi_char16_t *name, efi_guid_t *vendor, u32 *attr, unsigned long *data_size, void *data); efi_status_t xen_efi_get_next_variable(unsigned long *name_size, efi_char16_t *name, efi_guid_t *vendor); efi_status_t xen_efi_set_variable(efi_char16_t *name, efi_guid_t *vendor, u32 attr, unsigned long data_size, void *data); efi_status_t xen_efi_query_variable_info(u32 attr, u64 *storage_space, u64 *remaining_space, u64 *max_variable_size); efi_status_t xen_efi_get_next_high_mono_count(u32 *count); efi_status_t xen_efi_update_capsule(efi_capsule_header_t **capsules, unsigned long count, unsigned long sg_list); efi_status_t xen_efi_query_capsule_caps(efi_capsule_header_t **capsules, unsigned long count, u64 *max_size, int *reset_type); void xen_efi_reset_system(int reset_type, efi_status_t status, unsigned long data_size, efi_char16_t *data); #ifdef CONFIG_PREEMPT
static inline void xen_preemptible_hcall_begin(void) { }

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David Vrabel8100.00%1100.00%
Total8100.00%1100.00%


static inline void xen_preemptible_hcall_end(void) { }

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David Vrabel8100.00%1100.00%
Total8100.00%1100.00%

#else DECLARE_PER_CPU(bool, xen_in_preemptible_hcall);
static inline void xen_preemptible_hcall_begin(void) { __this_cpu_write(xen_in_preemptible_hcall, true); }

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PersonTokensPropCommitsCommitProp
David Vrabel16100.00%1100.00%
Total16100.00%1100.00%


static inline void xen_preemptible_hcall_end(void) { __this_cpu_write(xen_in_preemptible_hcall, false); }

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David Vrabel16100.00%1100.00%
Total16100.00%1100.00%

#endif /* CONFIG_PREEMPT */ #endif /* INCLUDE_XEN_OPS_H */

Overall Contributors

PersonTokensPropCommitsCommitProp
Shannon Zhao18724.67%25.88%
David Vrabel15320.18%38.82%
Paul Durrant7710.16%12.94%
Vitaly Kuznetsov709.23%38.82%
Ian Campbell516.73%411.76%
Stefano Stabellini405.28%411.76%
Isaku Yamahata324.22%25.88%
Julien Grall303.96%38.82%
Alex Nixon283.69%12.94%
Stanislaw Gruszka212.77%12.94%
Juergen Gross131.72%25.88%
Konrad Rzeszutek Wilk121.58%12.94%
Jeremy Fitzhardinge121.58%12.94%
Daniel Kiper111.45%12.94%
Dongli Zhang70.92%12.94%
Boris Ostrovsky60.79%12.94%
Ankur Arora40.53%12.94%
David Howells30.40%12.94%
Greg Kroah-Hartman10.13%12.94%
Total758100.00%34100.00%
Directory: include/xen
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